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

A technology of polyester resin and carbon fiber, which is applied in the direction of carbon fiber, fiber treatment, fiber type, etc., can solve difficult problems such as processability and physical properties, and achieve good water solubility, wide range of raw materials, good processability and interface properties Effect

Active Publication Date: 2021-12-07
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 201310099630.4) proposes an emulsion sizing agent prepared by using diethyl terephthalate modified epoxy resin, which is suitable for polyethylene terephthalate resin-based carbon fiber composite materials, but its The main component is still epoxy resin, and the problems of processability and physical properties caused by the above-mentioned fiber hardening and curing are difficult to solve

Method used

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

Examples

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Effect test

Embodiment 1～8

[0027] Mix a certain amount of polyester 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, gradually add the above mixture, and continue stirring for a certain period of time after adding completely; Transfer the above-mentioned aqueous mixture to the stainless steel stirring tank B, add a certain amount of polyethylene glycol, turn on the high-speed emulsifier, emulsify at a certain speed for a certain period of time, and then discharge. The polyester powder is from Arkema Co., Ltd. of France, and the polyacrylamide and polyethylene glycol are from BASF Co., Ltd. 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 parameters of the sizing agent are shown in Table 3.

[0028] The polyester resin-based ...

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Abstract

The invention discloses a polyester resin-based suspension sizing agent for carbon fibers and a preparation method thereof. The suspension sizing agent of the present invention is composed of polyester resin, dispersant, stabilizer and deionized water. The suspension sizing agent prepared by the invention has stable properties, and the sizing carbon fiber obtained by using it is suitable for intermediates such as carbon fiber fabrics and prepregs for polyester resin-based composite materials, and has good processing performance and interface bonding ability.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber sizing agents, in particular to a polyester resin-based suspension type sizing agent and a preparation method thereof. Background technique [0002] Carbon fiber is a light-weight and high-strength inorganic material, which is usually widely used in civil / industrial / military fields in the form of composite materials. At present, the matrix resins used in advanced composite materials are mainly thermosetting resins, which have many shortcomings, such as poor impact resistance, high water absorption, and poor toughness. The shortcomings of thermosetting resins are exactly the strengths of thermoplastic resins. Therefore, carbon fiber reinforced thermoplastic resins are becoming the focus of increasing attention of carbon fiber composites and downstream end users. Thermoplastic polyester resin has gradually become an important research object of carbon fiber reinforced thermoplastic resin due t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/507D06M15/285D06M15/53C08L67/00C08K9/04C08K7/06D06M101/40
CPCC08L67/00D06M15/285D06M15/507D06M15/53D06M2101/40D06M2200/40C08L67/02C08L33/26C08L71/02C08K9/04C08K7/06
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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