A kind of polyamide resin-based suspension sizing agent for carbon fiber and preparation method thereof

A polyamide resin and carbon fiber technology, applied in the direction of carbon fiber, fiber treatment, fiber type, etc., can solve the problems of unfavorable carbon fiber sizing industrial application, high technical difficulty, complex process, etc., and achieve low cost, good amphiphilicity, and good processing Effects of Performance and Interface Properties

Active Publication Date: 2022-02-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent (application number 201310041652.5) ​​provides an emulsion sizing agent prepared by modifying epoxy resin with amide modifier, but its main body is epoxy resin, and problems such as curing and hardening are difficult to solve
Water-soluble polyamide sizing agents usually require chemical modification of polyamide resins to introduce hydrophilic groups. Such products are technically difficult, complicated in process and high in cost, which is not conducive to the industrial application of carbon fiber sizing

Method used

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  • A kind of polyamide resin-based suspension sizing agent for carbon fiber and preparation method thereof
  • A kind of polyamide resin-based suspension sizing agent for carbon fiber and preparation method thereof
  • A kind of polyamide resin-based suspension sizing agent for carbon fiber and preparation method thereof

Examples

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Effect test

Embodiment 1～8

[0034] Mix a certain amount of polyamide resin powder and polyacrylamide evenly for later use; add a certain amount of water into the stainless steel stirring tank A and turn on the mechanical stirring, keep a certain speed, and gradually add the above mixture, and continue stirring for a certain period of time after it is completely added; The above water-containing mixture is transferred to the stainless steel stirring tank B, a certain amount of fatty alcohol polyoxyethylene ether is added, the high-speed emulsifier is turned on, and the material is discharged after emulsifying at a certain speed for a certain period of time. The polyamide powder is from China Petrochemical Co., Ltd., and the polyacrylamide and fatty alcohol polyoxyethylene ether are from BASF Corporation. The solid components of the suspension sizing agents prepared in Examples 1-8 are shown in Table 1, the composition and dosage of the sizing agents are shown in Table 2, and the preparation process paramet...

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Abstract

The invention discloses a polyamide resin-based suspension sizing agent for carbon fibers and a preparation method thereof. The suspension sizing agent of the present invention is made up of polyamide resin, dispersant, stabilizer and deionized water; According to the total mass of solid components being 100%, wherein: polyamide resin accounts for 60~80wt%; Dispersant accounts for 5 ~15wt%; stabilizer accounts for 15~25wt%. The preparation method of the invention is simple, and the obtained suspension sizing agent has stable properties, does not contain epoxy resin components, does not contain any organic solvent, and does not need any chemical modification. When the prepared sizing agent is used for carbon fiber preparation, the obtained sizing carbon fiber is suitable for intermediates such as carbon fiber fabrics and prepregs for polyamide resin-based composite materials, and has good processing performance and interfacial bonding ability.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber sizing agents, in particular to a polyamide resin-based suspension type sizing agent and a preparation method thereof. Background technique [0002] With the continuous reduction of carbon fiber manufacturing costs and the continuous improvement of the technical level, the application of carbon fiber has gradually expanded to various emerging industrial fields, and carbon fiber reinforced thermoplastic composites have gradually become a hot spot in research and development in the industry. Due to its low friction coefficient, wear resistance, high mechanical strength, wide temperature adaptability and other excellent properties, thermoplastic polyamide resin is widely used in the manufacture of automobiles, electrical appliances, sports parts, high performance, lightweight, environmental protection and other emerging industries The development trend leads the rapid development of carbon fiber...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/59D06M15/285D06M15/53D06M101/40
CPCD06M15/285D06M15/53D06M15/59D06M2101/40D06M2200/40
Inventor 季春晓黄翔宇曹阿民刘瑞超许璐璐吴嵩义张捷宋文迪蔡莺莺李鹏
Owner CHINA PETROLEUM & CHEM CORP
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