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Carbon fiber filled and modified PC/PET alloy and preparation method thereof

A carbon fiber and modification technology, applied in the field of carbon fiber filled modified PC/PET alloy and its preparation, can solve the problems of decreased mechanical properties and poor compatibility, and achieve the effects of low cost, easy promotion and high elasticity

Inactive Publication Date: 2015-08-19
QINGDAO TONGCHUANG ENERGY SAVING ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since PET is a crystalline polymer, PC is an amorphous polymer, and PC / PET is a typical amorphous / crystalline blend system, the compatibility of the two is poor and leads to a decrease in mechanical properties, thereby limiting its application in various fields. Expansion of application range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A carbon fiber filled modified PC / PET alloy, the components of which are: PC 40%, PET 30%, SMA 4%, modified carbon fiber 15%, POE 10%, antioxidant 1010 0.2%, 0.8% of pentaerythritol stearate, and the modified carbon fiber is a chopped polyacrylonitrile carbon fiber whose surface is treated with an oxidizing agent perchloric acid solution.

[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), Add chopped polyacrylonitrile carbon fiber to 98% perchloric acid solution at 60°C-90°C, ultrasonically treat it for 30-120 minutes, rinse it with deionized water for 3-5 times, and then place it in a vacuum oven at 80°C- Dry at 150°C for 24-48 hours to obtain the modified carbon fiber; (3) Weigh the dry PC and PET according to the weight ratio and add them to the high-speed mixer, and at the same time add SMA, POE, anti-oxidant Add agent 1010, pentaerythritol stearate, and add the modified ...

Embodiment 2

[0023] A carbon fiber filled modified PC / PET alloy, the composition of which is: PC 63%, PET 15%, SMA 3%, modified carbon fiber 10%, MBS 8%, antioxidant 1076 and antioxidant 0.5% of the compound of agent 168, 0.5% of pentaerythritol stearate, and the modified carbon fiber is a chopped polyacrylonitrile carbon fiber whose surface has been treated with an oxidant perchloric acid solution.

[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), Add chopped polyacrylonitrile carbon fiber to 98% perchloric acid solution at 60°C-90°C, ultrasonically treat it for 30-120 minutes, rinse it with deionized water for 3-5 times, and then place it in a vacuum oven at 80°C- Dry at 150°C for 24 to 48 hours to obtain the modified carbon fiber; (3) Weigh the dry PC and PET according to the weight ratio and add them to the high-speed mixer, and at the same time add SMA, MBS, anti-oxidant Add the compound o...

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PUM

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Abstract

The present invention discloses a carbon fiber filled and modified PC / PET alloy and a preparation method thereof, wherein the carbon fiber filled and modified PC / PET alloy comprises, by mass, 40-70% of PC, 15-30% of PET, 2-5% of SMA, 5-15% of modified carbon fibers, 4-10% of a toughening agent, 0.1-0.5% of an antioxidant, and 0.1-1% of a lubricant, wherein the modified carbon fibers are short cut polyacrylonitrile carbon fibers with the surface treated by an oxidizing agent perchloric acid solution. The carbon fiber filled and modified PC / PET alloy of the present invention has beneficial effects of high strength, high modulus, high elasticity, high gloss, good electrical conductivity, good thermal conductivity, good thermal stability, strong aging resistance, good size stability, low cost, easy promotion, and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a carbon fiber filled modified PC / PET alloy and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an important engineering plastic variety with excellent comprehensive performance and extremely wide range of uses. Products and other fields, but pure PC also has some defects, such as poor processing performance, easy stress cracking, notch impact and low temperature toughness, poor wear resistance, low hardness, etc., thus limiting its application range. Polyethylene terephthalate (PET) is a translucent crystalline thermoplastic polyester formed by polycondensation of terephthalic acid (PTA) and ethylene glycol. It has excellent wear resistance, heat resistance, Chemical resistance, electrical insulation and high mechanical strength, and low price, are widely used in synthetic polyester fiber and film manufacturing, civil blow molding, an...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08L23/08C08L53/02C08L23/16C08L9/02C08L75/04C08L51/06C08L51/00C08K7/06C08J5/06
CPCC08L69/00C08L2201/08C08L2205/035
Inventor 不公告发明人
Owner QINGDAO TONGCHUANG ENERGY SAVING ENVIRONMENTAL PROTECTION ENG
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