WO2011003787A1 - Article polyamide composite - Google Patents
Article polyamide composite Download PDFInfo
- Publication number
- WO2011003787A1 WO2011003787A1 PCT/EP2010/059281 EP2010059281W WO2011003787A1 WO 2011003787 A1 WO2011003787 A1 WO 2011003787A1 EP 2010059281 W EP2010059281 W EP 2010059281W WO 2011003787 A1 WO2011003787 A1 WO 2011003787A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyamide
- acid
- hydroxyaromatic
- monomers
- polyamides
- Prior art date
Links
- 229920002647 polyamide Polymers 0.000 title claims abstract description 127
- 239000004952 Polyamide Substances 0.000 title claims abstract description 125
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 239000004744 fabric Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 35
- 150000001875 compounds Chemical class 0.000 claims abstract description 31
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 20
- 238000005470 impregnation Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000000178 monomer Substances 0.000 claims description 29
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 26
- 238000006116 polymerization reaction Methods 0.000 claims description 20
- 150000004985 diamines Chemical class 0.000 claims description 13
- 230000006870 function Effects 0.000 claims description 13
- 238000006068 polycondensation reaction Methods 0.000 claims description 13
- XQXPVVBIMDBYFF-UHFFFAOYSA-N 4-hydroxyphenylacetic acid Chemical compound OC(=O)CC1=CC=C(O)C=C1 XQXPVVBIMDBYFF-UHFFFAOYSA-N 0.000 claims description 12
- QNVNLUSHGRBCLO-UHFFFAOYSA-N 5-hydroxybenzene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC(O)=CC(C(O)=O)=C1 QNVNLUSHGRBCLO-UHFFFAOYSA-N 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 12
- 125000003118 aryl group Chemical group 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 12
- 239000000155 melt Substances 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- -1 cyclic diamine Chemical class 0.000 claims description 8
- 150000001412 amines Chemical class 0.000 claims description 7
- 229940024606 amino acid Drugs 0.000 claims description 7
- 150000001413 amino acids Chemical class 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 229920002292 Nylon 6 Polymers 0.000 claims description 5
- 150000003951 lactams Chemical class 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- KVNYFPKFSJIPBJ-UHFFFAOYSA-N 1,2-diethylbenzene Chemical compound CCC1=CC=CC=C1CC KVNYFPKFSJIPBJ-UHFFFAOYSA-N 0.000 claims description 4
- OYFRNYNHAZOYNF-UHFFFAOYSA-N 2,5-dihydroxyterephthalic acid Chemical compound OC(=O)C1=CC(O)=C(C(O)=O)C=C1O OYFRNYNHAZOYNF-UHFFFAOYSA-N 0.000 claims description 4
- CDOWNLMZVKJRSC-UHFFFAOYSA-N 2-hydroxyterephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(O)=C1 CDOWNLMZVKJRSC-UHFFFAOYSA-N 0.000 claims description 4
- BCEQKAQCUWUNML-UHFFFAOYSA-N 4-hydroxybenzene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC=C(O)C(C(O)=O)=C1 BCEQKAQCUWUNML-UHFFFAOYSA-N 0.000 claims description 4
- OUYCCCASQSFEME-QMMMGPOBSA-N L-tyrosine Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-QMMMGPOBSA-N 0.000 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical group CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 4
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 4
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 claims description 4
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 4
- 244000198134 Agave sisalana Species 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 3
- 240000000491 Corchorus aestuans Species 0.000 claims description 3
- 235000011777 Corchorus aestuans Nutrition 0.000 claims description 3
- 235000010862 Corchorus capsularis Nutrition 0.000 claims description 3
- 240000000797 Hibiscus cannabinus Species 0.000 claims description 3
- 240000006240 Linum usitatissimum Species 0.000 claims description 3
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 150000001299 aldehydes Chemical class 0.000 claims description 3
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 235000009120 camo Nutrition 0.000 claims description 3
- 235000005607 chanvre indien Nutrition 0.000 claims description 3
- 239000011487 hemp Substances 0.000 claims description 3
- 150000002576 ketones Chemical group 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- FDLFMPKQBNPIER-UHFFFAOYSA-N 1-methyl-3-(3-methylphenoxy)benzene Chemical compound CC1=CC=CC(OC=2C=C(C)C=CC=2)=C1 FDLFMPKQBNPIER-UHFFFAOYSA-N 0.000 claims description 2
- GXMYUXALUDPFJE-UHFFFAOYSA-N 3,5-bis(aminomethyl)phenol Chemical compound NCC1=CC(O)=CC(CN)=C1 GXMYUXALUDPFJE-UHFFFAOYSA-N 0.000 claims description 2
- WFNVGXBEWXBZPL-UHFFFAOYSA-N 3,5-diaminophenol Chemical compound NC1=CC(N)=CC(O)=C1 WFNVGXBEWXBZPL-UHFFFAOYSA-N 0.000 claims description 2
- NUNAWQZKZVVELQ-UHFFFAOYSA-N 3-amino-4-methylphenol Chemical compound CC1=CC=C(O)C=C1N NUNAWQZKZVVELQ-UHFFFAOYSA-N 0.000 claims description 2
- QPEJHSFTZVMSJH-UHFFFAOYSA-N 3-amino-5-hydroxybenzoic acid Chemical compound NC1=CC(O)=CC(C(O)=O)=C1 QPEJHSFTZVMSJH-UHFFFAOYSA-N 0.000 claims description 2
- CWLKGDAVCFYWJK-UHFFFAOYSA-N 3-aminophenol Chemical compound NC1=CC=CC(O)=C1 CWLKGDAVCFYWJK-UHFFFAOYSA-N 0.000 claims description 2
- 229940018563 3-aminophenol Drugs 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 229920000571 Nylon 11 Polymers 0.000 claims description 2
- 229920000299 Nylon 12 Polymers 0.000 claims description 2
- 239000004305 biphenyl Substances 0.000 claims description 2
- 235000010290 biphenyl Nutrition 0.000 claims description 2
- 229920006018 co-polyamide Polymers 0.000 claims description 2
- LTYMSROWYAPPGB-UHFFFAOYSA-N diphenyl sulfide Chemical compound C=1C=CC=CC=1SC1=CC=CC=C1 LTYMSROWYAPPGB-UHFFFAOYSA-N 0.000 claims description 2
- 229940074391 gallic acid Drugs 0.000 claims description 2
- 235000004515 gallic acid Nutrition 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 229960004441 tyrosine Drugs 0.000 claims description 2
- 125000006839 xylylene group Chemical group 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims 1
- 150000004984 aromatic diamines Chemical class 0.000 claims 1
- 239000004917 carbon fiber Substances 0.000 claims 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 claims 1
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 claims 1
- 239000012779 reinforcing material Substances 0.000 abstract description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 229920000642 polymer Polymers 0.000 description 19
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 16
- 230000032683 aging Effects 0.000 description 13
- 150000003839 salts Chemical class 0.000 description 13
- 235000011037 adipic acid Nutrition 0.000 description 8
- 239000001361 adipic acid Substances 0.000 description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 7
- 230000035882 stress Effects 0.000 description 7
- 239000000654 additive Substances 0.000 description 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical group N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 239000002518 antifoaming agent Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
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- 150000001991 dicarboxylic acids Chemical class 0.000 description 4
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 4
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- CNPURSDMOWDNOQ-UHFFFAOYSA-N 4-methoxy-7h-pyrrolo[2,3-d]pyrimidin-2-amine Chemical compound COC1=NC(N)=NC2=C1C=CN2 CNPURSDMOWDNOQ-UHFFFAOYSA-N 0.000 description 2
- JJMDCOVWQOJGCB-UHFFFAOYSA-N 5-aminopentanoic acid Chemical compound [NH3+]CCCCC([O-])=O JJMDCOVWQOJGCB-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000008065 acid anhydrides Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
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- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 2
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- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZDGGJQMSELMHLK-UHFFFAOYSA-N m-Trifluoromethylhippuric acid Chemical compound OC(=O)CNC(=O)C1=CC=CC(C(F)(F)F)=C1 ZDGGJQMSELMHLK-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- VAWFFNJAPKXVPH-UHFFFAOYSA-N naphthalene-1,6-dicarboxylic acid Chemical compound OC(=O)C1=CC=CC2=CC(C(=O)O)=CC=C21 VAWFFNJAPKXVPH-UHFFFAOYSA-N 0.000 description 1
- DDLUSQPEQUJVOY-UHFFFAOYSA-N nonane-1,1-diamine Chemical compound CCCCCCCCC(N)N DDLUSQPEQUJVOY-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- KJOMYNHMBRNCNY-UHFFFAOYSA-N pentane-1,1-diamine Chemical compound CCCCC(N)N KJOMYNHMBRNCNY-UHFFFAOYSA-N 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920013657 polymer matrix composite Polymers 0.000 description 1
- 239000011160 polymer matrix composite Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006375 polyphtalamide Polymers 0.000 description 1
- 238000004313 potentiometry Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003763 resistance to breakage Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229920006012 semi-aromatic polyamide Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000011593 sulfur Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000003017 thermal stabilizer Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
- B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/465—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating by melting a solid material, e.g. sheets, powders of fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/48—Polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
- B29K2277/10—Aromatic polyamides [Polyaramides] or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
Definitions
- the present invention relates to the use of polyamide modified with hydroxyaromatic compounds for impregnating reinforcing materials in the form of fabric of industrial fabrics for the manufacture of composite materials.
- the field of the invention is that of composite materials and their manufacturing processes.
- thermosetting resins In the field of high-performance materials, composites have taken a prominent place, due to their performance and the weight gains they allow.
- the best known high-performance composites to date are obtained from thermosetting resins, the use of which is limited to low to medium series applications, mainly in aeronautics, motor sports, and in the best cases, presenting manufacturing times of about fifteen minutes, for example, during the manufacture of skis.
- the cost of these materials, and / or the manufacturing time make them difficult to compatible with mass use.
- the use of thermosetting resins often involves the presence of solvents and monomers. Finally, these composites are difficult to recycle.
- Thermoplastic polymers are generally known for their high viscosity, which constitutes a brake with regard to the impregnation of reinforcement materials, generally composed of very dense multifilament beams. It results from the use of thermoplastic matrices available on the market, a difficulty of impregnation requiring either prolonged impregnation times or significant application pressures. In most cases, the composite materials obtained from these matrices may have microvoids and non-impregnated areas. These microvids cause mechanical property failures, premature aging of the material and delamination problems when the material consists of multiple layers reinforcements. This phenomenon of loss of mechanical properties is also accentuated when the cycle times for the manufacture of composite articles decrease.
- Another problem frequently encountered with polymer matrix composite materials is their resistance to aging, and more particularly to hygrothermal aging.
- the diffusion of water within the composite materials causes a significant change in certain physical characteristics such as, for example, the glass transition temperature or swelling of the matrix.
- a modification at the matrix / fiber interfaces can also be observed, generally with an irreversible character.
- This aging is manifested by a degradation of the mechanical performances, in particular the resistance to breakage. It is then necessary to oversize the parts, which leads to an increase in weight and significant additional cost.
- the objective of the present invention is therefore to remedy these drawbacks by proposing a composite article that can be manufactured with short cycle times while having good use properties, such as good mechanical properties and good resistance to wear. hygrothermal aging.
- the Applicant has unexpectedly discovered that the use of polyamide resin modified with hydroxyaromatic compounds for the manufacture of composite articles made it possible to obtain articles having not only good mechanical properties, such as in particular rigidity, resistance to fracture, impact resistance, and fatigue behavior, even when manufactured with shorter cycle times than usual, and without any other treatment, but also good resistance to hygrothermal aging.
- These composite articles have in particular a very good maintenance of mechanical properties after hygrothermal aging, particularly compared to conventional composite polyamide articles.
- the articles according to the invention have in particular the advantages of rigidity, lightness, and recyclability, and a good surface appearance.
- the invention firstly relates to a method of manufacturing a composite article comprising at least:
- the present invention also relates to a composite article comprising at least one reinforcing fabric and a modified polyamide containing hydroxyaromatic units chemically bonded to the polyamide chain.
- fabric is meant a textile surface of yarns or fibers possibly joined together by any method, such as, in particular, gluing, felting, braiding, weaving or knitting. These fabrics are also referred to as fibrous or filamentary networks.
- wire is meant a monofilament, a continuous multifilament yarn, a spun yarn, obtained from a single type of fiber or several types of fibers in intimate mixture. The continuous wire can also be obtained by assembling several multifilament yarns.
- fiber is meant a filament or a set of cut, cracked or converted filaments.
- the yarns and / or reinforcing fibers according to the invention are preferably chosen from yarns and / or fibers of carbon, glass, aramids, polyimides, flax, hemp, sisal, coir and jute. , kenaf and / or their mixture. More preferably, the reinforcement fabrics consist solely of yarns and / or reinforcing fibers chosen from among the yarns and / or the fibers of carbon, glass, aramids, polyimides, flax, hemp, sisal, coir, jute, kenaf and / or their mixture.
- These fabrics are preferably a grammage, that is to say the weight per square meter, between 100 and 1000 g / m 2 .
- Their structure can be random, unidirectional (1D), or multidirectional (2D, 2,5D, 3D or other).
- a composite article according to the invention may comprise several reinforcing fabrics of different nature or not.
- the fabrics may optionally be coated or sized, in particular to provide special features.
- the polyamide according to the invention advantageously has a melt viscosity ⁇ of less than 250 Pa.s, preferably between 1 and 50 Pa.s. This viscosity can be measured using a planar planar rheometer with a diameter of 50 mm, under a shear streaking sweep ranging from 1 to 160 s-1.
- the polymer is in the form of a film with a thickness of 150 ⁇ m, granules or powder. The polymer is brought to a temperature of 25 to 30 ° C. above its melting point, and the measurement is then carried out.
- the number-average molecular weight (Mn) of the polyamides is preferably greater than 6000 g / mol, more preferably between 8000 g / mol and 20000 g / mol, having sufficient mechanical properties and a certain resistance during the various methods of setting up. form.
- Semi-crystalline polyamides are particularly preferred.
- Thermoplastic semi-crystalline polyamides are particularly preferred.
- the present invention relates in particular to a polyamide modified with a compound containing at least one aromatic hydroxyl group chemically bonded to the polymer chain, this polyamide being obtainable by polymerization, in addition to the monomers of the polyamide, of a hydroxyaromatic compound or by melt-phase mixing of a polyamide partially or totally formed with a hydroxyaromatic compound, in particular during a reactive extrusion.
- the modified polyamide according to the invention can also be obtained by solid phase polycondensation or solvent phase for certain polyamides.
- the monomers of the polyamides may in particular be diacid monomers, in particular aliphatic, cycloaliphatic, arylaliphatic or aromatic monomers, diamine monomers, in particular aliphatic monomers, and / or amino acids or lactams.
- diacid monomers in particular aliphatic, cycloaliphatic, arylaliphatic or aromatic monomers
- diamine monomers in particular aliphatic monomers
- / or amino acids or lactams are generally the monomers conventionally used for the production of semi-crystalline polyamides, such as aliphatic polyamides, semi-aromatic polyamides and, more generally, linear polyamides obtained by polycondensation between a saturated diacid aliphatic or aromatic, and a primary saturated aromatic or aliphatic diamine, the polyamides obtained by condensation of a lactam, an amino acid or linear polyamides obtained by condensation of a mixture of these different monomers.
- these copolyamides may be, for example, hexamethylene polyadipamide, polyphthalamides obtained from terephthalic and / or isophthalic acid, copolyamides obtained from adipic acid, hexamethylenediamine and caprolactam.
- the monomers of the polyamides may optionally contain unsaturations or heteroatoms such as oxygen, sulfur or nitrogen.
- polyamides chosen from the group comprising polyamide 6, polyamide 66, polyamide 6.10, polyamide 11, polyamide 12, polyamide 6.12, poly (meta-xylylene adipamide) (MXD6), polyamide 66 may be used. / 6T, polyamide 66/61, blends and copolyamides, such as copolyamide 6.66 for example.
- the composition of the invention may also comprise copolyamides derived in particular from the above polyamides, or mixtures of these polyamides or copolyamides.
- the preferred polyamides are polyhexamethylene adipamide, polycaprolactam, or copolymers and blends between polyhexamethylene adipamide and polycaprolactam.
- the dicarboxylic acids may also be chosen from glutaric acid, adipic acid, pimellic acid, suberic acid, azelaic acid, sebacic acid and dodecanedioic acid; 1,2-or 1,3-cyclohexane dicarboxylic acid; 1,2-or 1,3-phenylene diacetic acid; acid
- 1, 2-or 1,3-cyclohexane diacetic isophthalic acid; terephthalic acid; 4,4'-benzophenone dicarboxylic acid; 2,5-naphthalene dicarboxylic acid; and pt-butyl isophthalic acid.
- the preferred dicarboxylic acid is adipic acid.
- the diamines may for example be chosen from hexamethylenediamine; butane diamine; pentane diamine; 2-methyl pentamethylene diamine; 2-methyl hexamethylenediamine; 3-methyl hexamethylene diamine; 2,5-dimethyl hexamethylenediamine; 2,2-dimethylpentamethylenediamine; nonane diamine; decanediamine; 5-methylnonanediamine; dodecamethylene diamine; 2,2,4- and 2,4,4-trimethyl hexamethylenediamine; 2,2,7,7-tetramethyl octamethylene diamine; isophorone diamine; diaminodicyclohexyl methane and C2-C16 aliphatic diamines which may be substituted by one or more alkyl groups.
- the preferred diamine is hexamethylenediamine.
- the modified polyamide of the invention can be obtained from, in particular, a lactam monomer or an amino acid, preferably an aliphatic one.
- lactams or amino acids include caprolactam, 6-aminohexanoic acid, 5-aminopentanoic acid, 7-aminoheptanoic acid, 11-aminoundecanoic acid, dodecanolactam.
- polyamides may in particular be modified with difunctional or monofunctional monomers, such as especially diacids or diamines, monoacids or monoamines.
- Polyfunctional molecules at least trifunctional, may also be used to provide branches or connections to the polyamide.
- bishexamethylenetriamine is mentioned.
- Polyamides according to the invention may also be obtained by mixing, in particular melt, polyamides with chain length-changing monomers, such as in particular diamines, dicarboxylic acids, monoamines and / or mono carboxylic acids.
- the composition of the invention may also comprise copolyamides derived in particular from the above polyamides, or mixtures of these polyamides or (co) polyamides.
- star polyamide comprising star macromolecular chains and, where appropriate, linear macromolecular chains.
- the star-shaped polyamide is a polymer comprising star macromolecular chains, and optionally linear macromolecular chains, the polymers comprising such star macromolecular chains are for example described in the documents FR2743077, FR2779730, EP0682057 and EP0832149. These compounds are known to exhibit improved fluidity over linear polyamides.
- the star macromolecular chains comprise a core and at least three branches of polyamide.
- the branches are linked to the heart by a covalent bond, via an amide group or a group of another nature.
- the core is an organic or organometallic chemical compound, preferably a hydrocarbon compound optionally comprising heteroatoms and to which the branches are connected.
- the branches are polyamide chains.
- the polyamide chains constituting the branches are preferably of the type obtained by polymerization of lactams or amino acids, for example of the polyamide 6 type.
- the polyamide star structure according to the invention optionally comprises, in addition to star chains, linear polyamide chains.
- the ratio by weight between the quantity of star chains and the sum of the quantities of star and linear chains is between 0.5 and 1 inclusive. It is preferably between 0.6 and 0.9.
- carboxylic acid means carboxylic acids and their derivatives, such as acid anhydrides, acid chlorides, amides or esters.
- the composition according to the invention preferably has from 10 to 100% by weight, more preferably from 30 to 75% by weight of polyamide, relative to the total weight of the composition, still more preferably from 35 to 60% by weight.
- the hydroxyaromatic compound is a compound carrying at least one, in particular one or two, functions capable of reacting with the amine or acid functional groups of the polyamide or of the monomers of the polyamide.
- aromatic hydroxyl group is meant a hydroxyl function attached to a carbon atom forming part of an aromatic ring.
- hydroxyaromatic compound an organic compound having at least one aromatic hydroxyl group.
- the hydroxyaromatic compound becomes a hydroxyaromatic unit and the modified polyamide of the invention is a polyamide containing hydroxyaromatic units.
- the functions of the hydroxyaromatic compound that can react with the functions of the polyamide include the acid, ketone, amine and aldehyde functions.
- acid function is meant a carboxylic acid or derivative function, such as acid chloride, acid anhydride, amide, ester.
- aromatic hydroxyl groups of the invention are not considered to be functions reactive with acid functions.
- the hydroxyl group of the monomer is not congested, that is to say for example that the carbon atoms located in ⁇ of the function
- the hydroxyl groups are preferably not substituted by bulky substituents, such as branched alkyls.
- the hydroxyaromatic compound may for example be represented by the following formula (I):
- Z is a multivalent aromatic or arylaliphatic hydrocarbon radical (at least divalent)
- x is between 1 and 10;
- F is an acid, aldehyde, amine, ketone function capable of binding to an acid or amine function of the monomers of the polyamide, and
- n is between 1 and 5.
- Z may for example be selected from the group consisting of: benzene, methyl benzene, naphthalene, biphenyl, diphenyl ether, diphenyl sulfide, diphenyl sulfone, ditolyl ether, xylylene , diethyl benzene, or pyridine.
- arylaliphatic radical is meant a radical according to which at least one F function of the compound of formula (I) is not attached to this radical by a carbon atom forming part of an aromatic ring.
- Advantageously Z has between 6 and 18 carbon atoms.
- a hydroxyaromatic compound can perfectly contain several types of F functions of different nature.
- This compound is preferably selected from the group consisting of: 2-hydroxyterephthalic acid, 5-hydroxyisophthalic acid, 4-hydroxyisophthalic acid, 2,5-dihydroxyterephthalic acid, 4-hydroxyphenylacetic acid or gallic acid, L-Tyrosine, 4-hydroxyphenylacetic acid, 3,5-diaminophenol, 5-hydroxy-m-xylylenediamine, 3-amino-phenol, 3-amino-4-methylphenol, and 3-hydroxy-5-amino-benzoic acid.
- the molar proportion of hydroxyaromatic compound relative to all the monomers constituting the polyamide is generally between 0.1 and 100%, preferably between 1 and 70. %, more preferably between 0.5 and 60%, more preferably between 2.5 and 50%.
- the polyamide of the invention is especially obtained by a melt polymerization process of the various monomers described above, these monomers being present in whole or in part.
- melt polymerization it is meant that the polymerization is carried out in the liquid state, and that the polymerization medium contains no solvent other than water, possibly.
- the polymerization medium may for example be an aqueous solution comprising the monomers, or a liquid comprising the monomers.
- the polymerization medium comprises water as a solvent. This facilitates the agitation of the medium, and therefore its homogeneity.
- the polymerization medium may also include additives such as chain limiters.
- the modified polyamide of the invention is generally obtained by polycondensation between the various monomers, present in whole or in part, to form polyamide chains, with formation of the elimination product, in particular water, a part of which can vaporize .
- the modified polyamide of the invention is generally obtained by heating at high temperature and pressure, for example an aqueous solution comprising the monomers, or a liquid comprising the monomers, to evaporate the elimination product, in particular the water (initially present in the polymerization medium and / or formed during the polycondensation) while avoiding any formation of solid phase to prevent caking.
- the polycondensation reaction is generally carried out at a pressure of about 0.5-3.5 MPa (0.5-2.5 MPa) at a temperature of about 100-320 0 C (180-300 0 C).
- the polycondensation is generally continued in the melt phase at atmospheric pressure or reduced so as to reach the desired degree of advancement.
- the polycondensation product is a molten polymer or prepolymer. It may comprise a vapor phase consisting essentially of vapor of the elimination product, in particular water, which may have been formed and / or vaporized.
- This product can be subjected to vapor phase separation and finishing steps to achieve the desired degree of polycondensation.
- the separation of the vapor phase may for example be carried out in a cyclone device. Such devices are known.
- the finish consists in maintaining the polycondensation product in the molten state, at a pressure close to atmospheric pressure or under reduced pressure, for a time sufficient to reach the desired degree of advancement. Such an operation is known to those skilled in the art.
- the temperature of the finishing step is advantageously greater than or equal to 100 ° C. and in all cases greater than the solidification temperature of the polymer.
- the residence time in the finishing device is preferably greater than or equal to 5 minutes.
- the polycondensation product can also undergo a solid phase postcondensation step. This step is known to those skilled in the art and makes it possible to increase the degree of polycondensation to a desired value.
- the process of the invention is similar in its conditions to the conventional method for preparing polyamide of the type of those obtained from dicarboxylic acids and diamines, in particular the process for the manufacture of polyamide 66 from adipic acid and hexamethylenediamine.
- This method of manufacturing polyamide 66 is known to those skilled in the art.
- the process for producing polyamide of the type of those obtained from dicarboxylic acids and diamines generally uses as raw material, a salt obtained by a mixture in stoichiometric quantity, generally in a solvent such as water, a diacid with a diamine.
- adipic acid is mixed with hexamethylene diamine generally in water to obtain hexamethylene diammonium adipate better known as nylon salt or " Salt N ".
- these compounds when the process of the invention uses a diacid and a diamine, these compounds can be introduced, at least in part, in the form of a salt.
- the diacid is adipic acid and diamine hexamethylenediamine, these compounds can be introduced at least partly in the form of N salt. This makes it possible to have a stoichiometric equilibrium.
- the hydroxyaromatic compound is a diacid or a diamine, it is also possible to introduce it in the form of salts, with a diamine or a diacid.
- the process of the invention generally leads to a random polymer when the hydroxyaromatic compound is polyfunctional, especially at least difunctional, and to a polyamide having partially or completely hydroxyaromatic terminations, when the hydroxyaromatic compound is monofunctional.
- the modified polyamide obtained at the end of the finishing step can be cooled and granulated.
- the modified polyamide obtained by the process of the invention in molten form can be directly shaped or extruded and granulated, for subsequent shaping after melting.
- the modified polyamide according to the invention can be used as a matrix, alone or in combination with other thermoplastic polymers, in particular polyamides, polyesters, or polyolefins.
- the polyamide composition according to the invention is especially used as a matrix, in particular by granulation, calendering, extrusion in the form of a film, grinding, injection, molding, injection molding, pressing, and others.
- the impregnation step of the polyamide composition of the invention and the reinforcing fabric can be carried out in various ways, according to various possible methods. It is perfectly possible to impregnate one or more reinforcing fabric.
- the melt polyamide composition may be injected into a molding chamber comprising at least one or more reinforcing fabrics.
- the interior of the molding chamber is at a temperature of roughly 50 0 C above the melting point of said polyamide. It is then possible to cool the molding chamber and the article obtained to finally recover said article.
- This process is also known as the thermoset resin transfer molding process (RTM), which consists in injecting resin into a closed mold in which reinforcement fibers have been previously placed. This process can be carried out under pressure.
- RTM thermoset resin transfer molding process
- one or more reinforcing fabrics and one or more polyamide films modified with hydroxyaromatic compounds are placed in contact and the fabrics are impregnated by melting the polyamide.
- the necessary pressures for a good assembly, are generally higher than 30 bar.
- the composite article according to the invention may also be produced by bringing one or more reinforcing fabrics into contact with the powder of a polyamide as defined above, in particular of the fine powder, and the said impregnation is carried out. by melting the polyamide at a temperature equal to or greater than that of the melting point of the polyamide, optionally under pressure.
- the composite article of the invention can also be made by pultrusion. This technique generally involves drawing through a heated die one or more continuous yarns and fibers so as to impregnate it with a molten thermoplastic resin to obtain a rod or finished or semi-finished article.
- the article After impregnation of the reinforcing fabric with the polyamide, the article is obtained by solidification of the matrix.
- the cooling can advantageously be carried out rapidly so as to avoid significant crystallization of the polyamide, in particular to maintain the properties of the article.
- the cooling can in particular be carried out in less than 5 minutes, more preferably in less than one minute.
- the mold may for example be cooled by a cold fluid circuit. It is also possible to transfer the composite article to a cold mold, possibly under pressure.
- the polyamide composition and / or the composite article according to the invention may also comprise all the additives normally used in polyamide-based compositions used for the manufacture of articles.
- additives include thermal stabilizers, UV stabilizers, antioxidants, lubricants, pigments, dyes, plasticizers, reinforcing fillers, impact modifiers, and coupling agents.
- additives to improve the quality of the polyamide reinforcing fabric interfaces can also be used. These additives may for example be incorporated into the polyamide composition, incorporated into the threads and / or fibers of the reinforcing fabric, present on the threads and / or fibers of said fabric, or else deposited on the reinforcing fabric. These additives may be coupling agents such as those aminosilanes or chlorosilanes, or fluidifying or wetting agents, or their combination.
- Reinforcing fillers may be incorporated in the polyamide composition. These fillers may be chosen from fibrous fillers, such as short glass fibers, for example, or non-fibrous fillers such as kaolin, talc, silica, mica or wollastonite. Their size is generally between 1 and 25 microns. Sub-micron or even nanometric charges may also be used, alone or in addition to other charges.
- the present invention relates to an article obtainable by the method of the invention.
- the article may in particular be a polyamide-based composite article comprising a reinforcing fabric, in which the polyamide has a melt viscosity ⁇ of between 1 and 50 Pa ⁇ s.
- the articles according to the invention preferably comprise between 25 and 80% by volume of reinforcing fabric with respect to the total volume.
- the articles of the invention may be finished or semi-finished articles which may also be called prepregs.
- prepregs it is possible to thermoform composite articles in the form of plates to give them a defined shape after cooling.
- the invention thus relates to composite articles or preforms that can be obtained by the method according to the present invention.
- the articles of the invention may also be sandwich type structures having a core inserted between two skins.
- the composites of the invention can be used to form the outer layers, by associating them with a core type honeycomb or foam type.
- the layers can be assembled by chemical or thermal bonding.
- Composite structures according to the invention can be used in many fields such as aeronautics, automotive, energy, industry electric, sports and leisure industry. These structures can be used to make sports articles such as skis or to achieve various surfaces such as special floors, partitions, vehicle bodies, or billboards. In aeronautics these structures are used in particular at fairings (fuselage, wing, empennage). In the automobile, they are used for example at floors, supports such as rear shelves, or at the level of structural parts.
- a specific language is used in the description so as to facilitate understanding of the principle of the invention. It should nevertheless be understood that no limitation of the scope of the invention is envisaged by the use of this specific language. In particular, modifications, improvements and improvements may be considered by a person familiar with the technical field concerned on the basis of his own general knowledge.
- Acid end group (GTC) and amine (GTA) endpoints assayed by potentiometry, expressed in meq / kg.
- the reinforcements used in the examples are in the form of glass fabric preforms, cut to the dimensions required for the manufacture of the plates, that is to say 150 ⁇ 150 mm or 200 ⁇ 300 mm.
- the reinforcing fabric used is a fiberglass fabric (0 ° -90 °) of Synteen & Luckenhaus origin from a roving of 1200 tex, having a basis weight of 600 g / m 2 .
- the comparative polyamide C1 used in the examples is a high-fluidity polyamide 6.6 having an IV viscosity index of 97 ml / g, a melt viscosity ⁇ of 30 Pa.s and an Mn of 11200 g / mol.
- the polymer obtained is cast in the form of rod, cooled and granulated by cutting rushes.
- the copolyamide has a higher Tg of 6.2 0 C than that of PA 66.
- the copolyamide is manufactured according to a standard polyamide 66 polymerization process, with 35 minutes of finishing.
- the polymer obtained is cast in the form of rod, cooled and granulated by cutting rushes.
- the copolyamide has an upper Tg of 15.2 ° C. relative to that of PA 66.
- This copolyamide has a melt viscosity ⁇ of 37 Pa ⁇ s.
- a 51% by weight 6HIA salt in water is made by mixing a stoichiometric amount of hexamethylene diamine and 5-hydroxyisophthalic acid in water. 5623 g of 51% 6HIA salt, 112.1 g of 99.5% 5-hydroxyisophthalic acid, 105 g of water and 3.3 g of antifoaming agent are then introduced into a polymerization reactor.
- Polyamide PA 6HIA is manufactured according to a standard polyamide 66 polymerization process, with 30 minutes of finishing.
- the polymer obtained is cast in the form of rod, cooled and granulated by cutting rushes.
- the PA 66 and the PA 6HIA thus prepared are mixed in a proportion of 85/15 by weight in the melt in a DSM MIDI 2000 micro-compounder ("micro-compounder") (15 cm 3 ) at a temperature of 275 ° C.
- This mixture has a melt viscosity ⁇ of 35 Pa ⁇ s.
- Another mixture with 50/50 by weight is also prepared. This mixture has a melt viscosity ⁇ of 10 Pa ⁇ s.
- the polyamide is manufactured according to a standard polyamide 66 polymerization process with 30 minutes of finishing.
- the polymer obtained is cast in the form of rod, cooled and granulated by cutting rushes.
- GTC 103.3 meq / kg
- GTA 29.4 meq / kg.
- the theoretical amount of phenol functions at the GTP chain end is calculated from the initial amounts introduced into the reactor.
- GTP 437 meq / kg.
- the various polymers considered are used in powder form for the most fluid, if not in film form.
- the powders are obtained by cryogenic grinding, either in dry ice or in liquid nitrogen.
- the films are made by extrusion of granules on a twin-screw Leistritz extruder 34 and L / D 34 equipped with a flat die and a smoker (extruder output 10 Kg / h, screw speed 250 rpm; temperature of 270 ° C.).
- the spacing of the lips of the die is about 300 ⁇ m for a width of 30 cm with a call rate of 3.2 m / min on rolls regulated at 115 ° C.: the films obtained have a thickness that varies between 160 and 180 ⁇ m (coils of width 300 mm).
- the polymer films are cut into sheets of 150x150 mm or 200x300 mm, from the previously obtained coils. It is the same for reinforcement fabrics.
- Composite parts are produced using a Schwabenthan (Polystat 300A) temperature-controlled dual-plate hydraulic press: hot plates (heating resistors) and cooled trays (water circulation).
- a metal mold with a print size of 150 mm x 150 mm or 200x300 mm is used.
- a preform consisting of an alternating stack comprising 6 sheets of glass fabric and between each is a polymer sheet, or evenly distributed powder, the two outer layers being sheets of glass fabrics.
- the temperature of the platens of the press is previously raised to 290 ° C. before the introduction of the preform. At this temperature, the pressure is applied between 1 and 50 bar and maintained at this value; degassing is done quickly.
- the assembly is maintained at the same temperature and pressure, without degassing. Again, it is then carried out a series of degassing, then a maintenance always at the same temperature and pressure.
- the mold is then transferred to the cooled platen device and maintained at a pressure of between 1 and 50 bar.
- the composite parts thus obtained have a dimension of 150 ⁇ 150 mm or 200 ⁇ 300 mm and a thickness of about 2 mm.
- the sheets 150x150 mm or 200x300 mm are cut to obtain samples of dimensions 150x20x2 mm.
- a first series of samples are characterized just after manufacture (sample placed in a sealed envelope, in order to keep them in a dry state RHO).
- a conditioning treatment can also be carried out according to the ISO1110 standard "plastic / polyamide / accelerated packaging of test pieces": state said RH50.
- the equilibrium water content is obtained by conditioning the composite parts with a cycle of 14 days, at 70 ° C. under a residual humidity RH of 62%.
- the 3-point bending tests at room temperature are carried out on parallepipedic specimens (150x20x2 mm), according to ISO standard No. 14125, on a ZWICK 1478 machine: 64 mm center distance, 5 mm / min crosshead speed. Young's elastic modulus E (GPa) and maximum stress ⁇ max (MPa) values are measured and calculated.
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN2010800405169A CN102498153A (zh) | 2009-07-09 | 2010-06-30 | 复合聚酰胺制品 |
BR112012000314A BR112012000314A2 (pt) | 2009-07-09 | 2010-06-30 | artigo de poliamida compósito |
US13/383,088 US20120238164A1 (en) | 2009-07-09 | 2010-06-30 | Composite polyamide article |
JP2012518897A JP2012532938A (ja) | 2009-07-09 | 2010-06-30 | ポリアミド複合物品 |
EP10730427A EP2451864A1 (fr) | 2009-07-09 | 2010-06-30 | Article polyamide composite |
Applications Claiming Priority (2)
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FR0954771A FR2947823B1 (fr) | 2009-07-09 | 2009-07-09 | Article polyamide composite |
FR0954771 | 2009-07-09 |
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WO2011003787A1 true WO2011003787A1 (fr) | 2011-01-13 |
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PCT/EP2010/059281 WO2011003787A1 (fr) | 2009-07-09 | 2010-06-30 | Article polyamide composite |
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US (1) | US20120238164A1 (fr) |
EP (1) | EP2451864A1 (fr) |
JP (1) | JP2012532938A (fr) |
KR (1) | KR20120026614A (fr) |
CN (1) | CN102498153A (fr) |
BR (1) | BR112012000314A2 (fr) |
FR (1) | FR2947823B1 (fr) |
WO (1) | WO2011003787A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2959995A1 (fr) * | 2010-05-17 | 2011-11-18 | Rhodia Operations | Article polyamide composite |
JP2015533918A (ja) * | 2012-11-14 | 2015-11-26 | ローディア オペレーションズ | 脂肪族/半芳香族ブロックコポリアミド |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2953755B1 (fr) * | 2009-12-14 | 2012-01-20 | Rhodia Operations | Procede de fabrication d'articles composite a base de polyamide |
CN103201100B (zh) * | 2010-10-29 | 2016-11-09 | 纳幕尔杜邦公司 | 重叠注塑的聚酰胺复合结构及其制备方法 |
US20160101592A1 (en) * | 2013-06-18 | 2016-04-14 | E I Du Pont De Nemours And Company | Hybrid glass fibers carbon fibers thermoplastic composites |
FR3010093B1 (fr) * | 2013-09-04 | 2015-08-14 | Arkema France | Monofilament a base d'une composition de polyamide |
ES2875924T3 (es) * | 2014-02-06 | 2021-11-11 | Owens Corning Intellectual Capital Llc | Materiales compuestos reforzados con fibra |
FR3030346B1 (fr) * | 2014-12-22 | 2017-01-20 | Rhodia Operations | Procede de fabrication continu d'un profile en materiau composite a base de polymere thermoplastique a haute fluidite |
FR3049491B1 (fr) * | 2016-04-05 | 2018-09-07 | Arkema France | Procede de fabrication de pieces en materiau composite avec renforts |
WO2018196244A1 (fr) * | 2017-04-26 | 2018-11-01 | 中国科学院化学研究所 | Aryl amide copolymérisé à composants multiples modifié, procédé de préparation associé et utilisation associée |
CA2971066C (fr) * | 2017-06-16 | 2024-05-28 | Hutchinson Aeronautique & Industrie Ltee | Procede de fabrication d'un panneau composite |
ES2892285T3 (es) | 2018-05-24 | 2022-02-03 | Rhodia Operations | Procedimiento para fabricar artículos compuestos |
WO2020038584A1 (fr) | 2018-08-23 | 2020-02-27 | Rhodia Operations | Composites présentant des structures d'amélioration de flux et procédé pour leur fabrication |
TWI822929B (zh) | 2019-01-28 | 2023-11-21 | 日商東洋紡股份有限公司 | 雙軸配向聚醯胺膜以及聚醯胺膜修邊捲筒 |
CN112239600B (zh) * | 2019-07-17 | 2023-06-02 | 华峰集团有限公司 | 含铜化合物的高端氨基稳定型聚酰胺组合物及制法和应用 |
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JP2001031784A (ja) * | 1999-07-19 | 2001-02-06 | Nippon Kayaku Co Ltd | プリプレグ及びプリント配線基板の製造方法 |
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-
2010
- 2010-06-30 CN CN2010800405169A patent/CN102498153A/zh active Pending
- 2010-06-30 BR BR112012000314A patent/BR112012000314A2/pt not_active IP Right Cessation
- 2010-06-30 US US13/383,088 patent/US20120238164A1/en not_active Abandoned
- 2010-06-30 WO PCT/EP2010/059281 patent/WO2011003787A1/fr active Application Filing
- 2010-06-30 EP EP10730427A patent/EP2451864A1/fr not_active Withdrawn
- 2010-06-30 KR KR20127000657A patent/KR20120026614A/ko not_active Application Discontinuation
- 2010-06-30 JP JP2012518897A patent/JP2012532938A/ja active Pending
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Cited By (2)
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FR2959995A1 (fr) * | 2010-05-17 | 2011-11-18 | Rhodia Operations | Article polyamide composite |
JP2015533918A (ja) * | 2012-11-14 | 2015-11-26 | ローディア オペレーションズ | 脂肪族/半芳香族ブロックコポリアミド |
Also Published As
Publication number | Publication date |
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FR2947823B1 (fr) | 2012-12-28 |
US20120238164A1 (en) | 2012-09-20 |
BR112012000314A2 (pt) | 2019-09-24 |
CN102498153A (zh) | 2012-06-13 |
FR2947823A1 (fr) | 2011-01-14 |
EP2451864A1 (fr) | 2012-05-16 |
KR20120026614A (ko) | 2012-03-19 |
JP2012532938A (ja) | 2012-12-20 |
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