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Low-temperature-resistant impact-resistance-enhanced modified PC/PET (polycarbonate/polyethylene terephthalate) alloy

An impact modifier and low temperature resistance technology, which is applied in the field of low temperature resistance and impact reinforced modified PC/PET alloy, can solve the problems of poor low temperature resistance, low mechanical strength, poor compatibility, etc. Good impact modification effect, good application prospect, good corrosion resistance effect

Inactive Publication Date: 2015-06-03
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since PC is an amorphous polymer, PET is a crystalline polymer, and PC / PET alloy is a typical amorphous / crystalline blend system, the compatibility between the two is not good, resulting in low mechanical strength and low temperature resistance. well, thus greatly limiting its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A low-temperature impact-resistant reinforced modified PC / PET alloy, the composition of which is: PC 54%, PET 25%, polymethyl methacrylate grafted maleic anhydride (PMMA-g-MAH) 3%, polyolefin elastomer grafted maleic anhydride copolymer (POE-g-MAH) 5%, alkali-free short-wave fiber after surface activation treatment 10%, rubber type chlorinated polyethylene CPE135-B 2%, antioxidant Agent 0.2%, pentaerythritol stearate 0.8%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-35000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-1.0dL / g; the antioxidant is a compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168 at a mass ratio of 1:1.

[0021] Preparation method: (1), dry PC at 110°C-130°C for 3-4 hours in a blast dryer, dry PET at 130°C-150°C for 3-4 hours, and set aside; (2), Weigh dry PET, polyolefin elastomer grafted maleic anhydride copolymer (POE-g-MAH...

Embodiment 2

[0023] A low-temperature impact-resistant reinforced modified PC / PET alloy, the composition of which is: PC 53%, PET 30%, polymethyl methacrylate grafted maleic anhydride (PMMA-g-MAH) 4%, polyolefin elastomer grafted glycidyl methacrylate copolymer (POE-g-GMA) 5%, nano-carbon fiber after surface activation treatment 5%, low temperature resistant impact modifier M with core-shell structure -711 1.5%, antioxidant 0.2%, pentaerythritol stearate 1%, other additives 0.3%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-35000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-1.0dL / g; the antioxidant is a compound of hindered phenolic antioxidant 1076 and phosphite antioxidant 168 at a mass ratio of 1:1.

[0024] Preparation method: (1), dry PC at 110°C-130°C for 3-4 hours in a blast dryer, dry PET at 130°C-150°C for 3-4 hours, and set aside; (2), Weigh dry PET, polyolefin elastomer grafted...

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PUM

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Abstract

The invention discloses a low-temperature-resistant impact-resistance-enhanced modified PC / PET (polycarbonate / polyethylene terephthalate) alloy which is composed of the following components in percentage by mass: 45-60% of PC, 20-30% of PET, 2-4% of compatilizer, 2-8% of polyolefin elastomer graft, 5-10% of enhancer, 0.5-2% of low-temperature-resistant impact modifier, 0.1-0.5% of antioxidant, 0.1-1.5% of lubricant and 0-1% of other assistants. Compared with the prior art, the low-temperature-resistant impact-resistance-enhanced modified PC / PET alloy has the respective excellent properties in the PC and PET, has the advantages of excellent low temperature resistance, favorable impact-resistance modification effect, high strength, favorable corrosion resistance, stable size and high processability, and thus, has favorable application prospects in the fields of automobiles, electronic and electric appliances, mechanical and chemical industry, instruments and meters, sports equipment and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a low-temperature-resistant impact-resistant reinforced modified PC / PET alloy. Background technique [0002] PC / PET alloy (polycarbonate / polyethylene terephthalate) is an engineering plastic with excellent performance, which can be used in many occasions, such as in electronic appliances, automobile industry, machinery, optical instruments, medicine , construction and other fields. However, since PC is an amorphous polymer, PET is a crystalline polymer, and PC / PET alloy is a typical amorphous / crystalline blend system, the compatibility between the two is not good, resulting in low mechanical strength and low temperature resistance. Well, thus greatly limiting its application. Contents of the invention [0003] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a low temperature impact resistant reinforced modified ...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02C08L51/00C08L51/06C08L23/28C08K13/04C08K13/02C08K7/14C08K7/06C08K3/04C08K3/34C08K5/13C08K5/526C08K5/103
CPCC08L69/00C08K2201/011C08L2205/02C08L2205/035
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE
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