Preparation method and using method of carbon fiber compounded polyether sulfone resin sizing agent

Abstract

The invention provides a preparation method and a using method of a carbon fiber compounded polyether sulfone resin sizing agent. A new carbon fiber sizing agent component for polyether sulfone resin is prepared for solving the problem that an epoxy sizing agent is not suitable for the carbon fiber compounded polyether sulfone material, and can effectively improve the interface bonding property of carbon fibers and polyether sulfone and improve the high temperature resistance of a composite material. A preparation method comprises the steps of processing polyether sulfone resin with a sulfonating agent to obtain a main component (sulfonic polyether sulfone) of the sizing agent; preparing a sizing solution and dipping the carbon fiber to obtain the sizing carbon fiber. The method can improve the interface bonding property of the carbon fiber compounded polyether sulfone resin and can fully achieve high specific strength of the carbon fiber and high temperature resistance of the polyether sulfone.

Description

Technical field

[0001] The invention relates to the preparation and use method of a carbon fiber sizing agent suitable for a thermoplastic polyethersulfone resin matrix. Background technique

[0002] The multiple characteristics of carbon fiber, such as high strength, high modulus, corrosion resistance, and high temperature resistance, determine its wide range of applications. Carbon fiber composite resin is used in national defense science and engineering to basic civilian use. Thermoplastic resins are gradually being valued due to their low density, high strength, good toughness, no chemical reaction in the molding process, and reusability. A variety of excellent thermoplastic resins have been developed to replace thermosetting resins in various fields. The demand is increasing year by year.

[0003] The characteristics of carbon fiber surface inertness, small active specific surface area, and low surface energy seriously affect the bonding of the two-phase interface. When subj...