CN103360742B - Anti-aging PC-PTFE polyblend - Google Patents
Anti-aging PC-PTFE polyblend Download PDFInfo
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- CN103360742B CN103360742B CN201310294931.2A CN201310294931A CN103360742B CN 103360742 B CN103360742 B CN 103360742B CN 201310294931 A CN201310294931 A CN 201310294931A CN 103360742 B CN103360742 B CN 103360742B
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Abstract
The invention discloses a kind of anti-aging PC-PTFE polyblend, be made up of by weight following component: 100 parts of PC, 8-12 part PTFE, 1-3 part compatilizers, 0.5-1.5 part antiaging agents.PC-PTFE polyblend of the present invention, has higher wear resistance and lower frictional coefficient, is applicable to and manufactures various gear, cam, axle, bearing and sleeve etc.PC-PTFE polyblend of the present invention also has outstanding heat aging performance, uses under being adapted at thermal extremes environment.
Description
Technical field
The present invention relates to a kind of polyblend, particularly relate to a kind of anti-aging PC-PTFE polyblend.
Background technology
Polycarbonate, is called for short PC, and be the high molecular polymer containing carbonate group in molecular chain, the structure according to ester group can be divided into the broad varietys such as aliphatics, aromatic series, aliphatic-aromatic.Mechanical property wherein due to aliphatics and aliphatic-aromatic polycarbonate is lower, thus limits its application in engineering plastics.The suitability for industrialized production at present only having aromatic copolycarbonate to obtain.Due to the singularity on polycarbonate structure, now become the general engineering plastic that in five large-engineering plastics, rate of growth is the fastest.
Tetrafluoroethylene, English name: polytetrafluoroethylene, english abbreviation is PTFE, is usually formed by tetrafluoroethylene addition polymerization, good heat resistance, excellent solvent resistance.Its generation solves many problems in the fields such as chemical industry, oil, pharmacy.Teflon seal, packing ring, pad. teflon seal, pad, seal washer select suspension polymerization teflon resin molding to be processed into.Tetrafluoroethylene has the feature of resistance to chemical attack compared with other plastics, and it has been widely used as sealing material and packing material.
But current PC-PTFE polyblend antiageing effect is unsatisfactory.
Summary of the invention
For above shortcomings in prior art, technical problem to be solved by this invention is to provide a kind of anti-aging PC-PTFE polyblend, has good ageing resistance.
Technical problem to be solved by this invention is achieved by the following technical solution:
A kind of anti-aging PC-PTFE polyblend, is made up of by weight following component: 100 parts of PC, 8-12 part PTFE, 1-3 part compatilizers, 0.5-1.5 part antiaging agents.
Described antiaging agent, be made up of by weight following component: 30-50 part 4, the two octadecyl of 4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 30-50 part 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, 10-30 part thio-2 acid.
4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), No. CAS: 96-69-5, English name: 4,4'-Thio-bis (6-tert-butyl-m-methyl phenol).
1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, No. CAS: 1843-03-4,4,4', 4''-(1-methyl-1-propanyl-3-ylidene) tris [2-(1,1-dimethylethyl)-5-methyl-Phenol.
The two octadecyl of thio-2 acid, English name: Distearyl thiodipropionate, No. CAS: 693-36-7.
Two to 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane and thio-2 acid octadecyl is uniformly mixed, this antiaging agent can be obtained.
Described compatilizer is SMA, EBA-GMA, PP-g-MA, PP-g-AA, EAA, PS-g-PMMA, PS-g-MAH, PP-g-Pa6, PS-b-PMMA, PS-b-PBA, PE-g-ST, PP-g-ST, ABS-g-MAH, PP-g-MAH, EVA, SEBS, SEBS-g-MAH or PE-g-MAH.
Industry universal method can be adopted to be prepared anti-aging PC-PTFE polyblend of the present invention, such as: take each component by proportioning, after mixing, add in Banbury mixer and carry out banburying at 200-210 DEG C, then in double roll mill 215-225 DEG C carry out mixing, press polish is in blocks, namely obtains described anti-aging PC-PTFE polyblend.
Obviously, in the present invention for improving other performances of product, other auxiliary agents can also be added adaptively, as fire retardant, tinting material and static inhibitor etc.
Contriver is drawn by great many of experiments, by 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane and the two octadecyl three kinds of antiaging agents of thio-2 acid carry out reasonable composite use, synergy, antiageing effect is obvious.
PC-PTFE polyblend of the present invention, has higher wear resistance and lower frictional coefficient, is applicable to and manufactures various gear, cam, axle, bearing and sleeve etc.PC-PTFE polyblend of the present invention also has outstanding heat aging performance, uses under being adapted at thermal extremes environment.
Embodiment
Embodiment 1
Each raw material is taken according to embodiment 1 data corresponding in table 1.After mixing, add in Banbury mixer and carry out banburying at 205 DEG C, then in double roll mill 220 DEG C carry out mixing, press polish is in blocks, namely obtains described anti-aging PC-PTFE polyblend.
Table 1: anti-aging PC-PTFE polyblend formula table unit: kilogram
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| PC resin | 100 | 100 | 100 | 100 |
| PTFE resin | 10 | 10 | 10 | 10 |
| Compatilizer SMA | 2 | 2 | 2 | 2 |
| 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol) | 0.4 | 0.8 | / | 0.5 |
| 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane | 0.4 | / | 0.8 | 0.5 |
| The two octadecyl of thio-2 acid | 0.2 | 0.2 | 0.2 | / |
The injection grade PC resin of Japanese Di Ren company trade mark 1250Y selected by PC resin;
The PTFE resin of Daikin company trade mark FA-500 selected by PTFE resin.
Compatilizer SMA, formal name used at school styrene-maleic anhydride copolymer.The random copolymers of SMA resin system vinylbenzene and maleic anhydride, is the thermotolerance polymer kind succeeded in developing international nineteen seventies, mainly serves as the compatilizer of macromolecule product, belongs to phenylethylene one of resin dedicated.
Embodiment 2-4
Each raw material is taken respectively according to embodiment 2-4 data corresponding in table 1.The method described in embodiment 1 is adopted to prepare described anti-aging PC-PTFE polyblend.
Test case 1
According to thermo-oxidative ageing experimental standard GB/T7141-2008, artificially roughening (90 DEG C, 500h) is carried out to obtained plastics, and measures tensile strength, the Izod notched impact strength before and after this plastic artificial's accelerated deterioration respectively.
Tensile strength × 100% before stretching strength retentivity=(tensile strength before the tensile strength-artificial accelerated aging after artificial accelerated aging) ÷ artificial accelerated aging.
Izod notched impact strength × 100% before shock strength conservation rate=(Izod notched impact strength before the Izod notched impact strength-artificial accelerated aging after artificial accelerated aging) ÷ artificial accelerated aging.
Table 2: plastics ageing resistance test chart (90 DEG C, 500h)
| Stretching strength retentivity, % | Izod notched impact strength conservation rate, % |
| Embodiment 1 | 86.6 | 85.2 |
| Embodiment 2 | 85.2 | 84.1 |
| Embodiment 3 | 85.0 | 84.2 |
| Embodiment 4 | 85.4 | 83.7 |
Claims (2)
1. an anti-aging PC-PTFE polyblend, is characterized in that, is made up of by weight following component: 100 parts of PC, 8-12 part PTFE, 1-3 part compatilizers, 0.5-1.5 part antiaging agents;
Described antiaging agent is made up of by weight following component: 30-50 part 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 30-50 part 1, the two octadecyl of 1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, 10-30 part thio-2 acid.
2. anti-aging PC-PTFE polyblend as claimed in claim 1, is characterized in that: described compatilizer is SMA, EBA-GMA, PP-g-MA, PP-g-AA, EAA, PS-g-PMMA, PS-g-MAH, PP-g-PA6, PS-b-PMMA, PS-b-PBA, PE-g-ST, PP-g-ST, ABS-g-MAH, PP-g-MAH, EVA, SEBS, SEBS-g-MAH or PE-g-MAH.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1932885A1 (en) * | 2006-12-13 | 2008-06-18 | Cheil Industries Inc. | Scratch-resistant flame retardant thermoplastic resin composition |
| CN101942186A (en) * | 2010-09-08 | 2011-01-12 | 中蓝晨光化工研究院有限公司 | Halogen-free flame-retardant polycarbonate material and preparation method thereof |
| CN102399424A (en) * | 2010-09-08 | 2012-04-04 | 上海纳米技术及应用国家工程研究中心有限公司 | Polycarbonate/acrylonitrile-styrene-acrylate copolymer alloy material and preparation method thereof |
| CN103080221A (en) * | 2010-09-30 | 2013-05-01 | 大金工业株式会社 | Dripping inhibitor and resin compound |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1932885A1 (en) * | 2006-12-13 | 2008-06-18 | Cheil Industries Inc. | Scratch-resistant flame retardant thermoplastic resin composition |
| CN101942186A (en) * | 2010-09-08 | 2011-01-12 | 中蓝晨光化工研究院有限公司 | Halogen-free flame-retardant polycarbonate material and preparation method thereof |
| CN102399424A (en) * | 2010-09-08 | 2012-04-04 | 上海纳米技术及应用国家工程研究中心有限公司 | Polycarbonate/acrylonitrile-styrene-acrylate copolymer alloy material and preparation method thereof |
| CN103080221A (en) * | 2010-09-30 | 2013-05-01 | 大金工业株式会社 | Dripping inhibitor and resin compound |
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Inventor after: Cheng Wanyong Inventor after: Li Zhiqiang Inventor before: Huang Meirong |
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Effective date of registration: 20170425 Address after: 523000 Dongguan Province, Xie Gang Town, Cao Le Industrial Zone, Guangdong Patentee after: Dongguan wante Si Alwayseal Technology Ltd. Address before: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170425 Address after: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Room 271, building 280, Shuguang Road, Shanghai, Minhang District, 201111, China Patentee before: SHANGHAI QIUCHENG NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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