CN118047993A - Polyolefin elastomer composition and application thereof in photovoltaic packaging film - Google Patents
Polyolefin elastomer composition and application thereof in photovoltaic packaging film Download PDFInfo
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- CN118047993A CN118047993A CN202410112697.5A CN202410112697A CN118047993A CN 118047993 A CN118047993 A CN 118047993A CN 202410112697 A CN202410112697 A CN 202410112697A CN 118047993 A CN118047993 A CN 118047993A
- Authority
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- China
- Prior art keywords
- ethylene
- elastomer composition
- polyolefin elastomer
- olefin
- packaging film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229920006124 polyolefin elastomer Polymers 0.000 title claims abstract description 61
- 239000000203 mixture Substances 0.000 title claims abstract description 50
- 239000012785 packaging film Substances 0.000 title claims abstract description 44
- 229920006280 packaging film Polymers 0.000 title claims abstract description 44
- 229920000642 polymer Polymers 0.000 claims abstract description 61
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000005977 Ethylene Substances 0.000 claims abstract description 39
- 239000004711 α-olefin Substances 0.000 claims abstract description 33
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 29
- 229910000077 silane Inorganic materials 0.000 claims abstract description 27
- 229920001577 copolymer Polymers 0.000 claims abstract description 25
- 238000009826 distribution Methods 0.000 claims abstract description 10
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- -1 alkenyl silane Chemical compound 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 22
- 238000006116 polymerization reaction Methods 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical group CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 15
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 claims description 11
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 11
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 9
- 239000012968 metallocene catalyst Substances 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 8
- 230000003078 antioxidant effect Effects 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 claims description 6
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000008393 encapsulating agent Substances 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- UAEJRRZPRZCUBE-UHFFFAOYSA-N trimethoxyalumane Chemical compound [Al+3].[O-]C.[O-]C.[O-]C UAEJRRZPRZCUBE-UHFFFAOYSA-N 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 4
- ZMWRRFHBXARRRT-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4,6-bis(2-methylbutan-2-yl)phenol Chemical compound CCC(C)(C)C1=CC(C(C)(C)CC)=CC(N2N=C3C=CC=CC3=N2)=C1O ZMWRRFHBXARRRT-UHFFFAOYSA-N 0.000 claims description 3
- 150000001336 alkenes Chemical group 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- VVUWYXJTOLSMFV-UHFFFAOYSA-N (2-hydroxy-4-octylphenyl)-phenylmethanone Chemical compound OC1=CC(CCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 VVUWYXJTOLSMFV-UHFFFAOYSA-N 0.000 claims description 2
- XCPFSALHURPPJE-UHFFFAOYSA-N (3,5-ditert-butyl-4-hydroxyphenyl) propanoate Chemical compound CCC(=O)OC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 XCPFSALHURPPJE-UHFFFAOYSA-N 0.000 claims description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 2
- NDRPHZPVTSFYLH-UHFFFAOYSA-N 2,4,6-tris(2-butoxyphenyl)-1,3,5-triazine Chemical compound C(CCC)OC1=C(C=CC=C1)C1=NC(=NC(=N1)C1=C(C=CC=C1)OCCCC)C1=C(C=CC=C1)OCCCC NDRPHZPVTSFYLH-UHFFFAOYSA-N 0.000 claims description 2
- AIBRSVLEQRWAEG-UHFFFAOYSA-N 3,9-bis(2,4-ditert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP1OCC2(COP(OC=3C(=CC(=CC=3)C(C)(C)C)C(C)(C)C)OC2)CO1 AIBRSVLEQRWAEG-UHFFFAOYSA-N 0.000 claims description 2
- HCILJBJJZALOAL-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n'-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyl]propanehydrazide Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 HCILJBJJZALOAL-UHFFFAOYSA-N 0.000 claims description 2
- PRWJPWSKLXYEPD-UHFFFAOYSA-N 4-[4,4-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)butan-2-yl]-2-tert-butyl-5-methylphenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(C)CC(C=1C(=CC(O)=C(C=1)C(C)(C)C)C)C1=CC(C(C)(C)C)=C(O)C=C1C PRWJPWSKLXYEPD-UHFFFAOYSA-N 0.000 claims description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims description 2
- 125000004423 acyloxy group Chemical group 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 2
- 239000012965 benzophenone Substances 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 150000001565 benzotriazoles Chemical class 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 claims description 2
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052735 hafnium Inorganic materials 0.000 claims description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- JKBYAWVSVVSRIX-UHFFFAOYSA-N octadecyl 2-(1-octadecoxy-1-oxopropan-2-yl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)SC(C)C(=O)OCCCCCCCCCCCCCCCCCC JKBYAWVSVVSRIX-UHFFFAOYSA-N 0.000 claims description 2
- 125000004365 octenyl group Chemical group C(=CCCCCCC)* 0.000 claims description 2
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 claims description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 claims description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 2
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 150000007970 thio esters Chemical class 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052723 transition metal Inorganic materials 0.000 claims description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 claims description 2
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 239000006096 absorbing agent Substances 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 3
- 239000011147 inorganic material Substances 0.000 abstract description 3
- 230000001808 coupling effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 229920000098 polyolefin Polymers 0.000 abstract description 2
- 239000008188 pellet Substances 0.000 description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 7
- 238000012512 characterization method Methods 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000007822 coupling agent Substances 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- CPOFMOWDMVWCLF-UHFFFAOYSA-N methyl(oxo)alumane Chemical compound C[Al]=O CPOFMOWDMVWCLF-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RGASRBUYZODJTG-UHFFFAOYSA-N 1,1-bis(2,4-ditert-butylphenyl)-2,2-bis(hydroxymethyl)propane-1,3-diol dihydroxyphosphanyl dihydrogen phosphite Chemical compound OP(O)OP(O)O.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C(O)(C(CO)(CO)CO)C1=C(C=C(C=C1)C(C)(C)C)C(C)(C)C RGASRBUYZODJTG-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- NOZAQBYNLKNDRT-UHFFFAOYSA-N [diacetyloxy(ethenyl)silyl] acetate Chemical compound CC(=O)O[Si](OC(C)=O)(OC(C)=O)C=C NOZAQBYNLKNDRT-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 125000005234 alkyl aluminium group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- RMCOJEZDSRZFOF-UHFFFAOYSA-N but-1-enyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=CCC RMCOJEZDSRZFOF-UHFFFAOYSA-N 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C09J123/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention relates to the technical field of polyolefin materials, and particularly discloses a polyolefin elastomer composition and application thereof in a photovoltaic packaging film. The polyolefin elastomer composition consists of one or more ethylene and alpha-olefin copolymers (85-95 wt.%), one or more ethylene and alkenyl silane copolymers (5-15 wt.%). The polyolefin elastomer composition consists of an ethylene-alpha-olefin copolymer and an ethylene-alkenyl silane copolymer, has good compatibility, is favorable for the coupling effect of the ethylene-alkenyl silane copolymer, and improves the binding force of the polymer and inorganic materials; the ethylene-alpha-olefin copolymer has the advantages of high alpha-olefin insertion rate, high molecular weight and narrow molecular weight distribution; the polyolefin elastomer composition has the advantages of good PID resistance, high volume resistivity, high light transmittance and good water vapor barrier property when applied to a photovoltaic packaging film.
Description
Technical Field
The invention relates to the technical field of polyolefin materials, and particularly discloses a polyolefin elastomer composition and application thereof in a photovoltaic packaging film.
Background
Polyolefin elastomer (POE) is obtained by copolymerizing ethylene and alpha-olefin under the action of metallocene catalyst, and comprises ethylene-1-octene copolymer, ethylene-1-hexene copolymer, ethylene-1-butene copolymer, ethylene-propylene copolymer and the like. The POE has a microscopic two-phase structure, so that the material has good elasticity and excellent transparency. The soft chain crimp structure produced by the alpha-olefin branches on the one hand can form amorphous regions (rubber phase) with elasticity, and on the other hand the crystalline regions of the polyethylene segments (plastic phase) act as physical crosslinking points. The cross-linked state of the crystalline region is thermally reversible, and the crystalline region is preserved at room temperature or a low temperature, and macroscopically exhibits rubber-like elasticity; in a high temperature state, the crystalline region is broken by melting, and macroscopically converted from the elastomer into a molten fluid, thereby being easily extrusion-processed. The polyolefin elastomer has the characteristics of extremely low crystallinity, low density, narrow molecular weight distribution, low glass transition temperature and the like, and is widely applied to the fields of automobile industry, wire and cable jackets, plastic tougheners and the like.
POE can also be used as a main component for preparing a photovoltaic packaging film. Compared with the EVA packaging film, the POE packaging film has the advantages of strong PID resistance, high moisture isolation rate, high volume resistivity and the like. Compared with a single glass component, the PID (potential induced attenuation) effect of the N-type battery component and the double glass component is more obvious, the N-type battery component and the double glass component are more sensitive to water vapor, and the requirement on the water vapor barrier performance of the packaging film is higher, so that POE materials become better choices.
The silane coupling agent is added into the POE packaging film raw material, so that the affinity of POE and inorganic filler in the adhesive film can be improved, and the POE and the inorganic filler are tightly combined, so that the performance of the packaging film is improved. In addition, the silane-based coupling agent is added, so that the adhesion force of the POE packaging film, the photovoltaic cell and the glass can be enhanced, and the performance of the photovoltaic module is improved.
However, the effect of improving the adhesion between POE and inorganic filler by means of silane-based coupling agent is generally applied to the performance of photovoltaic packaging film, such as PID resistance, volume resistivity, light transmittance and water vapor barrier property, and is still not ideal, so that a new polyolefin elastomer composition needs to be developed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a polyolefin elastomer composition and application thereof in a photovoltaic packaging film.
To achieve the object of the present invention, in a first aspect, the present invention provides a polyolefin elastomer composition consisting of one or more ethylene and α -olefin copolymers (85 to 95 wt.%), one or more ethylene and alkenylsilane copolymers (5 to 15 wt.%).
Preferably, the ethylene and α -olefin copolymer and the ethylene and alkenylsilane copolymer are each random, block or random/block in structure.
Preferably, the alpha-olefin is selected from one or more of 1-butene, 1-hexene or 1-octene, and the insertion rate of the alpha-olefin is 20 to 60wt%.
Preferably, the molecular weight of the ethylene and alpha-olefin copolymer is 50000-150000 g/mol, the molecular weight distribution is 2-3, the density is 0.87-0.92 g/cm 3, the melt index is 10-30 g/10min, and the Mooney viscosity (ML 1+4,121 ℃) is 5-25.
Preferably, the alkenyl silane is R 1Si(R2)3, wherein R 1 is a linear terminal olefin group, R 2 is an alkoxy or acyloxy group, and the insertion rate of the alkenyl silane is 10 to 30wt%.
Preferably, the R 1 is selected from ethenyl, propenyl, butenyl, pentenyl, heptenyl or octenyl; the R 2 is selected from methoxy, ethoxy or acetyl.
Preferably, the molecular weight of the copolymer of ethylene and alkenyl silane is 1000-20000 g/mol, the molecular weight distribution is 1.5-2.5, the density is 0.95-1.1 g/cm 3, and the melt index is 0.5-2 g/10min.
In a second aspect, the present invention provides a method for preparing an olefin copolymer by a solution process.
A method for preparing olefin copolymer by solution method adopts metallocene catalyst system to catalyze ethylene and alpha-olefin or alkenyl silane to copolymerize in solution, the reactor is connected in series with devolatilization extrusion device to realize continuous polymerization reaction and post-treatment flow;
the method comprises the following steps: carrying out nitrogen purging treatment on a reaction system, adding a comonomer and a polymerization solvent into a reaction kettle, heating to a polymerization temperature, adding a catalyst solution into the reaction kettle, introducing ethylene for reaction, adding a terminator after the reaction is finished, reducing the temperature of the reaction kettle to below 40 ℃, decompressing, and replacing with nitrogen;
Pumping the reaction glue solution of the ethylene and the alpha-olefin copolymer to a devolatilization extrusion device to obtain polymer granules, and preparing the ethylene and the alpha-olefin copolymer;
The copolymer of ethylene and alkenyl silane is obtained by adopting a sedimentation and drying method, and the copolymer of ethylene and alkenyl silane is prepared.
Preferably, the metallocene catalyst system is a constrained geometry metallocene catalyst and a cocatalyst, wherein the constrained geometry metallocene catalyst has a structure as shown in formula (I),
Wherein R 1 is selected from hydrogen atom, alkyl, alkoxy or aryl, R 2 is selected from alkyl, M is a group IVB transition metal element selected from titanium, zirconium or hafnium.
Preferably, the cocatalyst is one or more of an alkyl aluminum, an alkoxy aluminum or a boron ion compound.
Preferably, the cocatalyst is selected from one or more of triethylaluminum, triisobutylaluminum, trimethoxyaluminum, B (C 6F5)3、Ph3CB(C6F5)4).
Preferably, the polymerization solvent is selected from hexane or toluene, the polymerization temperature is 80-150 ℃, the ethylene introducing pressure is 1-3 MPa, and the reaction time is 1-3 h.
Preferably, the terminator is one or more of C2-C6 alcohol, ether compound or C3-C6 ketone compound.
Preferably, the terminator is selected from one or more of ethanol, propanol, butanol, diethyl ether, propyl ether, acetone or butanone.
Preferably, the devolatilization extrusion device is a double-screw devolatilization extrusion device and is divided into four sections of devolatilization, wherein the temperature of the first section is 100-120 ℃ and the pressure is 70-90 kPa; the temperature of the second section is 120-140 ℃ and the pressure is 50-70 kPa; the temperature of the third section is 140-150 ℃ and the pressure is 30-50 kPa; the fourth stage has a temperature of 150-160 ℃ and a pressure of 20-30 kPa, and the volatile components in the polymer granules are 400-600 ppm.
In a third aspect, the present invention provides the use of a polyolefin elastomer composition in a photovoltaic encapsulant film.
Use of a polyolefin elastomer composition in a photovoltaic encapsulant film comprising the above polyolefin elastomer composition, an ultraviolet absorber and an antioxidant.
Preferably, the photovoltaic packaging film comprises the following components in percentage by weight:
96 to 99wt% of polyolefin elastomer composition
0.1 To 2 weight percent of ultraviolet absorbent
0.1 To 2 weight percent of antioxidant.
Preferably, the ultraviolet absorber is one or more of benzophenone and derivatives thereof, benzotriazole and derivatives thereof, triazine and derivatives thereof.
Preferably, the ultraviolet absorber is selected from one or more of 2, 4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-n-octylbenzophenone, 2- (2 ' -hydroxy-3 ',5' -di-tert-phenyl) -5-chlorinated benzotriazole, 2- (3 ',5' -di-tert-amyl-2 ' -hydroxyphenyl) benzotriazole, 2- (2 ' -hydroxy-5 ' -methylphenyl) benzotriazole, 2,4, 6-tris (2 ' -n-butoxyphenyl) -1,3, 5-triazine.
Preferably, the antioxidant is one or more of hindered phenols, hindered amines, thioesters and derivatives thereof, phosphites and derivatives thereof.
Preferably, the antioxidant is selected from one or more of 2, 6-di-tert-butyl-p-cresol, octadecyl beta (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], tris (2, 4-di-tert-butylphenyl) phosphite, bis (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite, dioctadecyl thiodipropionate, bis (3, 5-di-tert-butyl-4-hydroxyphenylpropionyl) hydrazine.
Preferably, the volume resistivity of the photovoltaic packaging film is 1 multiplied by 10 15～50×1015 ohm cm, the water vapor transmittance is 0.5-10 g/m 3 (24 h), the light transmittance is 75-85% (290-380 nm) and 85-98% (380-1100 nm), and the PID resistance (96 h) is 3-6%.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. The polyolefin elastomer composition consists of an ethylene-alpha-olefin copolymer and an ethylene-alkenyl silane copolymer, has good compatibility, is favorable for the coupling effect of the ethylene-alkenyl silane copolymer, and improves the binding force of the polymer and inorganic materials.
2. The olefin copolymerization method related by the invention can be simultaneously applied to the synthesis of ethylene-alpha-olefin copolymer and ethylene and alkenyl silane copolymer.
3. The ethylene-alpha-olefin copolymer has the advantages of high alpha-olefin insertion rate, high molecular weight and narrow molecular weight distribution.
4. The photovoltaic packaging film has the advantages of good PID resistance, high volume resistivity, high light transmittance and good water vapor barrier property.
Detailed Description
The invention is further illustrated below in connection with specific examples, which are not to be construed as limiting the invention in any way.
1. Preparation of ethylene and alpha-olefin copolymers
Example 1:
Firstly, carrying out nitrogen purging treatment on a polymerization device, adding 20L of 1-butene and 50L of hexane into a 100L high-pressure reaction kettle, heating to 80 ℃, mixing 50mg of catalyst and 10g of methylaluminoxane with hexane, adding into the reaction kettle, introducing ethylene to 1MPa, reacting for 1h, adding ethanol to terminate the reaction, reducing the temperature of the reaction kettle to below 40 ℃, decompressing, and replacing with nitrogen for three times. Pumping the reaction glue solution to a devolatilization extrusion device, setting the devolatilization temperature of four sections to be 100 ℃,120 ℃, 140 ℃ and 150 ℃ respectively, and the devolatilization pressure of four sections to be 70kPa, 50kPa, 30kPa and 20kPa respectively, extruding and granulating to obtain polymer A granules.
Example 2:
The comonomer 1-butene was changed to 1-hexene, and the other experimental conditions were the same as in example 1, to finally obtain polymer B pellets.
Example 3:
the comonomer 1-butene was changed to 1-octene, and the other experimental conditions were the same as in example 1, to finally obtain polymer C pellets.
Example 4:
The cocatalyst trimethoxy aluminum was changed to B (C 6F5)3), and the other experimental conditions were the same as in example 3, to finally obtain polymer D pellets.
Example 5:
the polymerization solvent hexane was changed to toluene, and the other experimental conditions were the same as in example 4, to finally obtain polymer E pellets.
Example 6:
the polymerization temperature was changed to 120℃and the other experimental conditions were the same as in example 4, to finally obtain polymer F pellets.
Example 7:
The polymerization temperature was changed to 150℃and the other experimental conditions were the same as in example 4, to finally obtain polymer G pellets.
Example 8:
The ethylene pressure was changed to 2MPa, and the other experimental conditions were the same as in example 6, to finally obtain polymer H pellets.
Example 9:
The ethylene pressure was changed to 3MPa, and the other experimental conditions were the same as in example 6, to finally obtain polymer I pellets.
Example 10:
The polymerization time was changed to 2 hours, and the other experimental conditions were the same as in example 6, to finally obtain polymer J pellets.
Example 11:
the polymerization time was changed to 3 hours, and the other experimental conditions were the same as in example 6, to finally obtain polymer K pellets.
Example 12:
the terminator ethanol was changed to butanone, and the other experimental conditions were the same as in example 6, to finally obtain polymer L pellets.
Example 13:
The four-stage devolatilization temperature was changed to 120℃and 140℃and 150℃and 160℃under the same experimental conditions as in example 6, to finally obtain polymer M pellets.
Example 14:
The four-stage devolatilization pressures were changed to 90kPa, 70kPa, 50kPa and 30kPa, and the other experimental conditions were the same as those in example 6, to finally obtain polymer N pellets.
Comparative example 1
The comonomer 1-butene was changed to propylene, and the other experimental conditions were the same as in example 1, to finally obtain polymer O pellets.
The product characterization data for examples 1-14 are shown in Table 1.
TABLE 1 characterization data for ethylene-alpha-olefin copolymerization reaction products
From the result of the ethylene-alpha-olefin copolymerization reaction, it is known that high insertion rate, high molecular weight and molecular weight distribution can be obtained for different alpha-olefin monomers. The physical properties of the polymer can be regulated and controlled by optimizing the conditions such as polymerization temperature, pressure and the like. Comparative example 1a copolymer of ethylene and propylene was prepared, the insertion rate of propylene and the molecular weight of the polymer were significantly lower than those of the ethylene-alpha-olefin copolymer, and the molecular weight distribution of the polymer was broad.
2. Preparation of ethylene and alkenylsilane copolymers
Example 15:
Firstly, nitrogen purging treatment is carried out on a polymerization device, 2L of vinyl triethoxysilane and 5L of toluene are added into a 10L high-pressure reaction kettle, the temperature is raised to 100 ℃,10 mg of catalyst and 2g of methylaluminoxane are mixed with toluene, then the mixture is added into the reaction kettle, ethylene is introduced to 2MPa, after the reaction is carried out for 1h, ethanol is added to terminate the reaction, the reaction kettle is cooled to below 40 ℃, and after pressure relief, nitrogen is used for three times of replacement. Discharging the reaction glue solution into ethanol for sedimentation, filtering out a polymer, and drying in vacuum to finally obtain the silane polymer I.
Example 16:
The comonomer vinyltriethoxysilane was changed to vinyltriacetoxysilane, and the other experimental conditions were the same as in example 15, to finally obtain silane polymer II.
Example 17:
The comonomer vinyltriethoxysilane was changed to butenyltriethoxysilane, and the silane polymer III was finally obtained under the same experimental conditions as in example 15.
Example 18:
the silane polymer IV was finally obtained by changing the comonomer vinyltriethoxysilane to octenyltriethoxysilane under the same experimental conditions as in example 15.
Example 19:
The polymerization temperature was changed to 120℃and the amounts of catalyst (10 mg) and trimethoxy aluminum (2 g) were changed to catalyst (20 mg) and trimethoxy aluminum (3 g), and other experimental conditions were the same as in example 15, to finally obtain silane polymer V.
Example 20:
the silane polymer VI was obtained by changing the amount of vinyltriethoxysilane (2L) to vinyltriethoxysilane (1L), changing the polymerization temperature to 150℃at 100℃and other experimental conditions as in example 15.
Comparative example 2
The silane polymer VII was finally obtained by changing the comonomer vinyltriethoxysilane to methyltrimethoxysilane under the same experimental conditions as in example 15.
The product characterization data for examples 15-20 are shown in Table 2.
TABLE 2 characterization data for copolymerization reaction products of ethylene and alkenylsiloxanes
Comparative example 2a copolymer of ethylene and methyltrimethoxysilane was prepared with very low insertion rate of methyltrimethoxysilane compared to vinyl, butenyl and octenyl siloxanes.
3. Polyolefin elastomer composition and preparation of photovoltaic packaging film
Example 21:
97wt% of polyolefin elastomer composition (95 wt% of polymer A, 5wt% of polymer I), 1wt% of 2, 4-dihydroxybenzophenone and 2wt% of 2, 6-di-tert-butyl-p-cresol are mixed and melted, and then the mixture is extruded, cast into a film, cooled, cut and rolled to prepare the photovoltaic packaging film.
Example 22:
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (95 wt% polymer B, 5wt% polymer I), 1wt%2, 4-dihydroxybenzophenone, 2wt%2, 6-di-tert-butyl-p-cresol, other experimental conditions were consistent with example 21.
Example 23:
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (95 wt% polymer C, 5wt% polymer I), 1wt%2, 4-dihydroxybenzophenone, 2wt%2, 6-di-tert-butyl-p-cresol, other experimental conditions were consistent with example 21.
Example 24:
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (95 wt% polymer F, 5wt% polymer I), 1wt%2, 4-dihydroxybenzophenone, 2wt%2, 6-di-tert-butyl-p-cresol, other experimental conditions were consistent with example 21.
Example 25:
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (95 wt% polymer F, 5wt% polymer IV), 1wt%2, 4-dihydroxybenzophenone, 2wt%2, 6-di-tert-butyl-p-cresol, other experimental conditions were consistent with example 21.
Example 26:
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (95 wt% polymer F, 5wt% polymer VI), 1wt%2, 4-dihydroxybenzophenone, 2wt%2, 6-di-tert-butyl-p-cresol, other experimental conditions were consistent with example 21.
Example 27:
The photovoltaic packaging film stock was 99wt% polyolefin elastomer composition (95 wt% polymer F, 5wt% polymer VI), 0.5wt%2, 4-dihydroxybenzophenone, 0.5wt%2, 6-di-tert-butyl-p-cresol, other experimental conditions were consistent with example 21.
Example 28:
The photovoltaic packaging film stock was 99wt% polyolefin elastomer composition (85 wt% polymer F, 15wt% polymer VI), 0.5wt%2, 4-dihydroxybenzophenone, 0.5wt%2, 6-di-tert-butyl-p-cresol, other experimental conditions were consistent with example 21.
Example 29:
The photovoltaic packaging film stock was 99wt% polyolefin elastomer composition (85 wt% polymer F, 15wt% polymer VI), 0.5wt%2- (3 ',5' -di-tert-amyl-2 ' -hydroxyphenyl) benzotriazole, 0.5wt%2, 6-di-tert-butyl-p-cresol, other experimental conditions were consistent with example 21.
Example 30:
The photovoltaic packaging film stock was 99wt% polyolefin elastomer composition (95 wt% polymer F, 5wt% polymer VI), 0.5wt%2, 4-dihydroxybenzophenone, 0.5wt% bis (2, 4-di-t-butylphenyl) pentaerythritol diphosphite, other experimental conditions were consistent with example 21.
Comparative example 3
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (100 wt% polymer a), other experimental conditions were consistent with example 21.
Comparative example 4
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (80 wt% polymer a, 20wt% polymer I), other experimental conditions were consistent with example 21.
Comparative example 5
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (95 wt% polymer O, 5wt% polymer I), other experimental conditions were consistent with example 21.
Comparative example 6
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (95 wt% polymer a, 5wt% polymer VII), other experimental conditions were consistent with example 21.
Comparative example 7
The photovoltaic packaging film stock was 97wt% polyolefin elastomer composition (95 wt% polymer O, 5wt% polymer VII), other experimental conditions were consistent with example 21.
The photovoltaic packaging film properties of examples 21-30 are shown in Table 3.
Table 3 table of performance parameters of photovoltaic packaging films
The performance parameters of the photovoltaic packaging film prove that the photovoltaic packaging film prepared from the polyolefin elastomer composition has the advantages of good PID resistance, high volume resistivity, high light transmittance and good water vapor barrier property. The ethylene-alpha-olefin copolymer prepared by the invention has the characteristics of high alpha-olefin insertion rate, high molecular weight and narrow molecular weight distribution, and the ethylene-alkenyl silane copolymer can be used as a coupling agent to improve the adhesion between a POE packaging film and an inorganic material so as to improve the performance of a photovoltaic module. Compared with a micromolecular silane coupling agent, the ethylene-alkenyl silane copolymer has the advantages of good compatibility, difficult escape and excellent mechanical property.
Any numerical value recited in this disclosure includes all values incremented by one unit from the lowest value to the highest value if there is only a two unit interval between any lowest value and any highest value. For example, if the amount of a component, or a process variable such as temperature, pressure, time, etc., is stated to be 50-90, it is meant in this specification that values such as 51-89, 52-88 … …, and 69-71, and 70-71 are specifically recited. For non-integer values, 0.1, 0.01, 0.001 or 0.0001 units may be considered as appropriate. This is only a few examples of the specific designations. In a similar manner, all possible combinations of values between the lowest value and the highest value enumerated are to be considered to be disclosed.
It should be noted that the above-described embodiments are only for explaining the present invention and do not constitute any limitation of the present invention. The invention has been described with reference to exemplary embodiments, but it is understood that the words which have been used are words of description and illustration, rather than words of limitation. Modifications may be made to the invention as defined in the appended claims, and the invention may be modified without departing from the scope and spirit of the invention. Although the invention is described herein with reference to particular means, materials and embodiments, the invention is not intended to be limited to the particulars disclosed herein, as the invention extends to all other means and applications which perform the same function.
Claims (22)
1. A polyolefin elastomer composition, characterized in that it consists of one or more ethylene and α -olefin copolymers (85-95 wt.%), one or more ethylene and alkenylsilane copolymers (5-15 wt.%).
2. The polyolefin elastomer composition according to claim 1, wherein the structures of the ethylene and α -olefin copolymer and the ethylene and alkenylsilane copolymer are random, block or random/block.
3. The polyolefin elastomer composition according to claim 1, wherein the alpha-olefin is selected from one or more of 1-butene, 1-hexene or 1-octene, the insertion rate of the alpha-olefin being 20 to 60wt%.
4. The polyolefin elastomer composition according to claim 1, wherein the ethylene and α -olefin copolymer has a molecular weight of 50000-150000 g/mol, a molecular weight distribution of 2-3, a density of 0.87-0.92 g/cm 3, a melt index of 10-30 g/10min and a mooney viscosity (ML 1+4,121 ℃) of 5-25.
5. The polyolefin elastomer composition according to claim 1, wherein the alkenyl silane is R 1Si(R2)3, wherein R 1 is a linear terminal olefin group, R 2 is an alkoxy or acyloxy group, the insertion of the alkenyl silane being 10 to 30wt%.
6. The polyolefin elastomer composition according to claim 5, wherein said R 1 is selected from ethenyl, propenyl, butenyl, pentenyl, heptenyl or octenyl; the R 2 is selected from methoxy, ethoxy or acetyl.
7. The polyolefin elastomer composition according to claim 1, wherein the copolymer of ethylene and alkenyl silane has a molecular weight of 1000 to 20000g/mol, a molecular weight distribution of 1.5 to 2.5, a density of 0.95 to 1.1g/cm 3, and a melt index of 0.5 to 2g/10min.
8. A method for preparing olefin copolymer by solution method is characterized in that a metallocene catalyst system is adopted to catalyze ethylene and alpha-olefin or alkenyl silane to copolymerize in solution, a reaction kettle is connected in series with a devolatilization extrusion device to realize continuous polymerization reaction and post-treatment flow;
the method comprises the following steps: carrying out nitrogen purging treatment on a reaction system, adding a comonomer and a polymerization solvent into a reaction kettle, heating to a polymerization temperature, adding a catalyst solution into the reaction kettle, introducing ethylene for reaction, adding a terminator after the reaction is finished, reducing the temperature of the reaction kettle to below 40 ℃, decompressing, and replacing with nitrogen;
pumping the reaction glue solution of the ethylene and the alpha-olefin copolymer to a devolatilization extrusion device to obtain polymer granules, and preparing the ethylene and the alpha-olefin copolymer according to any one of claims 1-7;
The copolymer of ethylene and alkenylsilane obtained by a sedimentation and drying method, which gives the copolymer of ethylene and alkenylsilane according to any one of claims 1 to 7.
9. The method for preparing an olefin copolymer by a solution process according to claim 8, wherein the metallocene catalyst system is a constrained geometry metallocene catalyst and a cocatalyst, wherein the constrained geometry metallocene catalyst has a structure represented by formula (I),
Wherein R 1 is selected from hydrogen atom, alkyl, alkoxy or aryl, R 2 is selected from alkyl, M is a group IVB transition metal element selected from titanium, zirconium or hafnium.
10. The method of preparing an olefin copolymer in solution according to claim 8, wherein the cocatalyst is one or more of an aluminum alkyl, an aluminum alkoxide, or a boron ion compound.
11. The method for preparing an olefin copolymer according to claim 10, wherein the cocatalyst is selected from one or more of triethylaluminum, triisobutylaluminum, trimethoxyaluminum, and B (C 6F5)3、Ph3CB(C6F5)4).
12. The method for preparing an olefin copolymer by a solution process according to claim 8, wherein the polymerization solvent is selected from hexane or toluene, the polymerization temperature is 80 to 150 ℃, the pressure of ethylene introduction is 1 to 3MPa, and the reaction time is 1 to 3 hours.
13. The method for preparing an olefin copolymer by a solution process according to claim 8, wherein the terminator is one or more of a C2 to C6 alcohol, an ether compound, or a C3 to C6 ketone compound.
14. The method for preparing an olefin copolymer by a solution process according to claim 13, wherein the terminator is one or more selected from ethanol, propanol, butanol, diethyl ether, propyl ether, acetone and butanone.
15. The method for preparing olefin copolymer by solution process according to claim 8, wherein the devolatilization extrusion device is a twin screw devolatilization extrusion device, which is divided into four sections of devolatilization, the first section is at 100-120 ℃ and the pressure is 70-90 kPa; the temperature of the second section is 120-140 ℃ and the pressure is 50-70 kPa; the temperature of the third section is 140-150 ℃ and the pressure is 30-50 kPa; the fourth stage has a temperature of 150-160 ℃ and a pressure of 20-30 kPa, and the volatile components in the polymer granules are 400-600 ppm.
16. Use of a polyolefin elastomer composition in a photovoltaic packaging film, characterized in that the photovoltaic packaging film comprises the polyolefin elastomer composition according to any one of claims 1 to 7, an ultraviolet absorber and an antioxidant.
17. Use of the polyolefin elastomer composition according to claim 16 in a photovoltaic packaging film, wherein the amounts of the components in the photovoltaic packaging film are respectively:
96 to 99wt% of polyolefin elastomer composition
0.1 To 2 weight percent of ultraviolet absorbent
0.1 To 2 weight percent of antioxidant.
18. The use of the polyolefin elastomer composition according to claim 16 in a photovoltaic encapsulant film, wherein the uv absorber is one or more of benzophenone and its derivatives, benzotriazole and its derivatives, triazine and its derivatives.
19. Use of the polyolefin elastomer composition according to claim 18 in a photovoltaic encapsulant film, characterized in that the uv absorber is selected from one or more of 2, 4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-n-octylbenzophenone, 2- (2 ' -hydroxy-3 ',5' -di-tert-phenyl) -5-chlorinated benzotriazole, 2- (3 ',5' -di-tert-amyl-2 ' -hydroxyphenyl) benzotriazole, 2- (2 ' -hydroxy-5 ' -methylphenyl) benzotriazole, 2,4, 6-tris (2 ' -n-butoxyphenyl) -1,3, 5-triazine.
20. Use of the polyolefin elastomer composition according to claim 16 in a photovoltaic encapsulant film, wherein the antioxidant is one or more of hindered phenols, hindered amines, thioesters and derivatives thereof, phosphites and derivatives thereof.
21. Use of the polyolefin elastomer composition according to claim 20 in a photovoltaic encapsulant film, characterized in that the antioxidant is selected from one or more of 2, 6-di-tert-butyl-p-cresol, octadecyl beta (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], tris (2, 4-di-tert-butylphenyl) phosphite, bis (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite, dioctadecyl thiodipropionate, bis (3, 5-di-tert-butyl-4-hydroxyphenylpropionyl) hydrazine.
22. The use of the polyolefin elastomer composition according to claim 16 in a photovoltaic packaging film, wherein the photovoltaic packaging film has a volume resistivity of 1 x 10 15～50×1015 Ω -cm, a water vapor transmission of 0.5-10 g/m 3 (24 h), a light transmission of 75-85% (290-380 nm) and 85-98% (380-1100 nm), and a PID resistance (96 h) of 3-6%.
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| CN202410112697.5A Pending CN118047993A (en) | 2024-01-26 | 2024-01-26 | Polyolefin elastomer composition and application thereof in photovoltaic packaging film |
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| CN112778376A (en) * | 2021-01-21 | 2021-05-11 | 山东京博石油化工有限公司 | Metallocene compound and application thereof |
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| EP0365289A2 (en) * | 1988-10-21 | 1990-04-25 | Neste Oy | Method for producing a filled water-crosslinkable silane copolymer composition |
| JPH0762107A (en) * | 1993-08-24 | 1995-03-07 | Mitsui Toatsu Chem Inc | Production of crosslinked polyolefein |
| CN102050904A (en) * | 2001-11-16 | 2011-05-11 | 纳幕尔杜邦公司 | Copolymers of olefins and vinyl- and allylsilanes |
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