Sizing agent for carbon fibers, preparation method and application

A carbon fiber and slurry technology, applied in the direction of carbon fiber, fiber type, fiber treatment, etc., can solve the problems of inability to transmit stress, affect the mechanical properties of composite materials, and poor compatibility, so as to improve the mechanical properties and meet the requirements of high-temperature processing window , the effect of reducing consumption

Active Publication Date: 2017-11-17
北京康姆特科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These thermosetting sizing agents have poor compatibility with the thermoplastic resin matrix and cannot effectively transfer stress to carbon fibers, which affects the mechanical properties of composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1 part by weight of thermoplastic resin polyphenylene sulfide ketone was dissolved in 9 parts by weight of chloroform, and the dissolution was accelerated for 8 minutes under mechanical stirring at 1000 r / min at a temperature of 30° C. to form an organic solution. Add 0.07 parts by weight of sodium lauryl sulfate to 10 parts by weight of water, and accelerate the dissolution for 8 minutes under mechanical stirring at 1000 r / min at a temperature of 30° C. to form an aqueous solution. Mix the above-mentioned organic solution and aqueous solution, and emulsify for 20 minutes under the mechanical stirring of 1500r / min and the temperature of 30°C; then, keep the emulsified system under the mechanical stirring of 1000r / min and the temperature of 80°C for 1h, and the trichloro Methane is volatilized to obtain a sizing agent for emulsion carbon fiber.

[0030] The carbon fiber was dipped in the above sizing agent for 5 seconds, and then the sizing agent was applied to the sizin...

Embodiment 2

[0032] 0.5 parts by weight of thermoplastic resin polyphenylene sulfide ketone was dissolved in 9 parts by weight of chloroform, and the dissolution was accelerated for 10 minutes under mechanical stirring at 800 r / min at a temperature of 35° C. to form an organic solution. Add 0.1 part by weight of sodium lauryl sulfate to 10 parts by weight of water, and accelerate the dissolution for 10 minutes under mechanical stirring at 800 r / min at a temperature of 35° C. to form an aqueous solution. Mix the above-mentioned organic solution and aqueous solution, and emulsify for 30 minutes under the mechanical stirring of 1500r / min and the temperature of 35°C; then, keep the emulsified system under the mechanical stirring of 800r / min and the temperature of 80°C for 1.5h, and the three Chloromethane is volatilized to obtain a sizing agent for emulsion type carbon fiber.

[0033] The carbon fiber was dipped in the above sizing agent for 5 seconds, and then the sizing agent was applied to ...

Embodiment 3

[0035] Dissolve 1 part by weight of thermoplastic resin polyphenylene sulfide amide in 9 parts by weight of N-methylpyrrolidone, and accelerate the dissolution for 6 minutes under mechanical stirring at 1000 r / min at a temperature of 50° C. to form an organic solution. Add 0.07 parts by weight of chloroalkyl dimethyl benzylamine to 10 parts by weight of water, and accelerate the dissolution for 6 minutes under mechanical stirring at 1000 r / min at a temperature of 50° C. to form an aqueous solution. Mix the above-mentioned organic solution and aqueous solution, and emulsify for 20 minutes under the mechanical stirring of 1500r / min and the temperature of 50°C; then, keep the emulsified system under the mechanical stirring of 1000r / min and the temperature of 85°C for 1h, and N- Methylpyrrolidone is volatilized to obtain a sizing agent for emulsion type carbon fiber.

[0036] The carbon fiber was dipped in the above sizing agent for 5 seconds, and then the sizing agent was applied...

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PUM

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Abstract

The invention discloses a sizing agent for carbon fibers, a preparation method and an application. The sizing agent is in an emulsion form and contains a main sizing agent and a surfactant, wherein the main size is prepared from thermoplastic polyarylene sulfide polymers and water, the thermoplastic polyarylene sulfide polymers account for 0.05wt%-10wt% of the main sizing agent, and the surfactant accounts for 0.05wt%-3wt% of the main sizing agent. According to the sizing agent, mechanical properties of a polyarylene sulfide polymer based carbon fiber reinforced composite can be improved.

Description

technical field [0001] The invention relates to a sizing agent for carbon fiber, its preparation method and application, in particular to an emulsion type carbon fiber sizing agent, its preparation method and application. Background technique [0002] Carbon fiber is an important reinforcing fiber, which has the advantages of high temperature resistance, high strength, high modulus, and corrosion resistance. Carbon fiber is widely used in aerospace, civil construction, sporting goods, medical equipment and other fields because of its excellent performance. Carbon fiber itself is brittle. During the production, textile and transportation process, it is easy to break monofilaments and generate hairs after mechanical friction, which affects the performance of carbon fibers. The hairy phenomenon is not conducive to the infiltration of the resin matrix, and it is easy to generate voids inside the product, thereby reducing the overall performance of the composite material. In ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/63D06M13/262D06M13/33C08L81/02C08K9/04C08K7/06D06M101/40
CPCC08K7/06C08K9/04C08L81/02C08L2205/025D06M13/262D06M13/33D06M15/63D06M2101/40D06M2200/40C08K9/08
Inventor 李松荣胡照会黄其忠田谋锋彭玉刚王亚朋
Owner 北京康姆特科技发展有限公司
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