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High-hardness modified PC (polycarbonate) and carbon fiber composite material and preparation method thereof

A composite material and carbon fiber technology, which is applied in the field of high hardness modified PC and carbon fiber composite materials and its preparation, can solve the problems of high glass transition temperature, scratches on the surface, and insufficient hardness, etc., and achieve high coupling efficiency , increase the surface hardness, and promote the effect of miniaturizing the grain size

Inactive Publication Date: 2019-03-08
ANHUI XUSHENG NEW CONCEPT MATERIAL CO LTD
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Problems solved by technology

[0002] Polycarbonate, also known as PC resin, has excellent performance and has tough and rigid mechanical properties. Its outstanding features are high impact resistance and creep resistance, good dimensional stability, and good cold resistance. Its unnotched impact strength High ranks first among engineering plastics, with a high glass transition temperature, can be used continuously in th

Method used

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Example Embodiment

[0027] High hardness modified PC and carbon fiber composite materials, including PC resin, carbon fiber and additives. The additives include coupling agent, β crystal PP nucleating agent, UHMWPE, chain extender, flame retardant, compatibilizer, and others Auxiliary agent, its components in mass percentage are:

[0028] PC resin 60%

[0029] Carbon fiber 25%

[0030] Titanate coupling agent 1%

[0031] β crystal form PP nucleating agent 3%

[0032] UHMWPE 8%

[0033] 1,4-Butanediol (BDO) chain extender 1%

[0034] Polybrominated diphenyl ether flame retardant 0.5%

[0035] Maleic anhydride graft compatibilizer 0.5%

[0036] Light stabilizer 1%;

[0037] The preparation method of high hardness modified PC and carbon fiber composite material includes the following steps:

[0038] Step 1: Take a certain weight of PC resin and place the PC resin in a blast drying oven for 10 hours at a drying temperature of 100-120°C to obtain a dry PC resin;

[0039] Step 2: Take 60 parts of PC resin after drying...

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Abstract

The invention relates to a high-hardness modified PC (polycarbonate) and carbon fiber composite material which comprises PC resin, carbon fibers and an additive, wherein the additive comprises a coupling agent, a beta crystal form PP (polypropylene) nucleating agent, UHMWPE (ultrahigh molecular weight polyethylene), a chain extender, a fire retardant, a compatilizer and other additives; specifically, the composite material comprises the following ingredients by mass percentage: 60-70% of the PC resin, 20-30% of the carbon fibers, 1-2% of the coupling agent, 3-5% of the beta crystal form PP nucleating agent, 5-10% of the UHMWPE, 0.5-1% of the chain extender, 0.3-1.5% of the fire retardant, 0.1-0.5% of the compatilizer and 1% of the other additives. Compared with the prior art, the compositematerial has the following advantages: 1, the added coupling agent is high in coupling efficiency to a PC material and stable in coupling structure, so that the hardness of the PC material is greatlyimproved.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-hardness modified PC and carbon fiber composite material and a preparation method thereof. Background technique [0002] Polycarbonate, also known as PC resin, has excellent performance and has tough and rigid mechanical properties. Its outstanding features are high impact resistance and creep resistance, good dimensional stability, and good cold resistance. Its unnotched impact strength High ranks first among engineering plastics, with a high glass transition temperature, can be used continuously in the range of 120-130 ° C, and has good electrical insulation and dimensional stability; however, PC resin also has many shortcomings, such as insufficient hardness, the product is in use It is easy to leave scratches on the surface during the process, which affects the appearance. Therefore, it is very necessary to improve the performance of plastic products that meet the prac...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L23/06C08K13/04C08K7/14C08K5/10C08K5/053C08K5/06
CPCC08L69/00C08L2205/03C08L2205/08C08L2205/242C08L23/06C08K13/04C08K7/14C08K5/10C08K5/053C08K5/06
Inventor 蔡福泉
Owner ANHUI XUSHENG NEW CONCEPT MATERIAL CO LTD
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