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...

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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.

Technology Topic

PolycarbonatePolypropylene +8

Examples

Experimental program(1)

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, 25 parts of carbon fiber and 1 part of titanate coupling agent into the twin-screw extruder, heating temperature is 200-350℃, heating and melting, then adding 3 parts by mass respectively Parts of β-crystal PP nucleating agent, 8 parts of UHMWPE, 1 part of 1,4-butanediol (BDO), 0.5 part of polybrominated diphenyl ether, 0.5 part of maleic anhydride graft compatibilizer and 1 part of Light stabilizer, extruded and pelletized after 3h, the extrusion temperature is 260-300℃, the screw speed is controlled at 200-300r/min, the extruded material is cooled in air and then pelletized to obtain high hardness modified PC and carbon fiber Composite materials.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

High coupling efficiency

Riemerella anatipestifer surface antigen D15 truncated recombinant protein sensitization latex reagent as well as preparation method and application thereof

ActiveCN103926414AGood repeatability and sensitivityHigh coupling efficiencyBacteria peptidesBiological testingCarboxylationChemistry

Owner:SICHUAN AGRI UNIV

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

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

PUM

Description & Claims & Application Information

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