A polyphenylene sulfide resin-based carbon fiber suspension sizing agent and a preparation method thereof

A polyphenylene sulfide resin and suspension technology, which is applied in carbon fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of limited improvement effect of the two-phase interface, difficult aging and hardening phenomenon, and small molecular weight of the modifier. Excellent binding ability, good dispersion effect, good mechanical properties

Active Publication Date: 2019-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molecular weight of the modifier is small, and the addition ratio is small, so the improvement effect on the two-phase interface is limited
At the same time, there is still a large amount of epoxy resin in the main body of the sizing agent, and the phenomenon of aging and hardening during processing is difficult to solve
[0005] Using traditional methods to prepare pure polyphenylene sulfide resin-based carbon fiber sizing agents usually requires chemical grafting modification of polyphenylene sulfide resin or a large amount of organic solvents for dissolution. The preparation process is complicated, involving multiple solvents, hazardous waste and other pollution. material, has a greater impact on the environment, and is less economical

Method used

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  • A polyphenylene sulfide resin-based carbon fiber suspension sizing agent and a preparation method thereof
  • A polyphenylene sulfide resin-based carbon fiber suspension sizing agent and a preparation method thereof
  • A polyphenylene sulfide resin-based carbon fiber suspension sizing agent and a preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8

[0032] Put the quantitative polyphenylene sulfide resin powder and sodium polyacrylate into the stirring tank A in sequence, gradually add quantitative deionized water dropwise, and when the amount of water added reaches 35wt% of the total feeding amount, turn on the mechanical stirring, continue stirring at a certain speed, and Continue to add the remaining amount of water, stir for a certain period of time to obtain a uniform white emulsion, discharge the material and transfer it to the stirring tank B equipped with a high-speed emulsifier, add a certain amount of polyethylene glycol, turn on the high-speed emulsifier, and continue at a fixed speed Stir and discharge to obtain a milky white suspension sizing agent.

[0033] The polyphenylene sulfide resin powder is from Toray Co., Ltd., Japan, and the sodium polyacrylate and polyethylene glycol are from BASF Corporation. The solid components of the suspension sizing agents prepared in Examples 1-8 are shown in Table 1, the c...

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Abstract

The invention discloses a polyphenylene sulfide resin-based carbon fiber suspension sizing agent and a preparation method thereof. The sizing agent is composed of polyphenylene sulfide resin powder, sodium polyacrylate, polyethylene glycol and deionized water, wherein the polyphenylene sulfide resin powder accounts for 65-75wt% of the total mass of the solid components, the sodium polyacrylate accounts for 12-17wt% of the total mass of the solid components, and the polyethylene glycol accounts for 13-18wt% of the total mass of the solid components. Sized carbon fibers prepared by the sizing agent are suitable for intermediates such as carbon fiber fabrics, prepregs and the like for polyphenylene sulfide resin-based composite materials, and have good mechanical properties, temperature resistance and two-phase interface bonding force.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber sizing agents, in particular to a polyphenylene sulfide resin-based suspension type sizing agent and a preparation method thereof. Background technique [0002] Carbon fiber is a lightweight and high-strength inorganic material with high specific strength / modulus and high temperature resistance, and has been widely used in the aerospace field. Polyphenylene sulfide resin is a new type of high-performance thermoplastic resin. Its sulfur atoms and benzene rings are neatly arranged alternately, which endows the molecule with highly stable chemical bond characteristics, and is easy to accumulate into a crystal lattice with high thermal stability. It has high mechanical strength, High temperature resistance, chemical resistance and many other advantages. With carbon fiber as the reinforcing phase and polyphenylene sulfide as the matrix phase, carbon fiber reinforced polyphenylene sulfide resin-ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/63D06M15/53D06M15/263D06M101/40
Inventor 季春晓黄翔宇曹阿民刘瑞超刘杰吴嵩义许璐璐田明伟
Owner CHINA PETROLEUM & CHEM CORP
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