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A kind of high permeability glass fiber sizing agent for epoxy resin and its preparation method and application

A technology for epoxy resin and glass fiber, which is applied in the field of high-permeability glass fiber sizing for epoxy resin and its preparation, can solve the problems of high cost of equipment and consumables, lack of universal applicability, complicated operation, etc., and achieve Excellent mechanical properties, good dispersion, good interface compatibility

Active Publication Date: 2022-04-01
JUSHI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the new process (such as the vacuum infusion process in the field of wind blades) can improve the permeability of glass fibers in resin to a certain extent (vacuum pressure drives resin to penetrate glass fibers), this process is not only complicated to operate, but also correspondingly The cost of equipment and consumables is high, and it is not universal

Method used

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  • A kind of high permeability glass fiber sizing agent for epoxy resin and its preparation method and application
  • A kind of high permeability glass fiber sizing agent for epoxy resin and its preparation method and application
  • A kind of high permeability glass fiber sizing agent for epoxy resin and its preparation method and application

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Experimental program
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Effect test

preparation example Construction

[0053] The preparation method of this glass fiber sizing agent comprises the following steps:

[0054] (1) Add a total of 30% to 40% of water into a container equipped with a variable speed stirrer, add a pH regulator and two silane coupling agents in sequence, and stir until the solution is clear;

[0055] (2) After diluting the film-forming agent with water 5 to 8 times its mass, add it to the container;

[0056] (3) After diluting the lubricant with water 10 to 15 times its mass, add it to the container;

[0057] (4) After diluting the surfactant with water 10 to 15 times its mass, add it to the container;

[0058] (5) After diluting the defoamer with water 5 to 8 times its mass, add it to the container;

[0059] (6) After diluting the anti-aging agent with water 5 to 8 times its mass, add it to the container;

[0060] (7) Finally, add the remaining amount of water to the container and stir evenly to obtain the finished product.

[0061] The specific formula of some exa...

Embodiment A1

[0068] The solid content of the sizing agent is 4%, and the percentage of the mass of each component of the solid component in the total mass of the solid component is expressed as follows

[0069]

Embodiment A2

[0071] The solid content of the sizing agent is 4.5%, and the percentage of the mass of each component of the solid component in the total mass of the solid component is expressed as follows

[0072]

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PUM

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Abstract

The invention provides a glass fiber sizing with high penetrability for epoxy resin. The sizing contains solid components and water, and the solid components include silane coupling agents, film-forming agents, lubricants, surfactants, and disinfectants. Foaming agent, anti-aging agent, pH regulator; the mass of solid components accounts for 4% to 5% of the total mass of the infiltrating agent. The glass fiber yarn produced by using this sizing agent has good bundling properties, less hairiness, very good dispersion after a certain tension, and is quickly and completely soaked in epoxy resin; at the same time, it is suitable for winding pipes, pultruded profiles and wind power bases After curing, the interface compatibility between glass fiber and epoxy resin is good, and the prepared composite material has excellent mechanical properties, fatigue properties and excellent aging resistance.

Description

technical field [0001] The invention relates to the technical field of glass fiber sizing, in particular to a high-permeability glass fiber sizing for epoxy resin and its preparation method and application. Background technique [0002] Since the advent of glass fiber in the 1930s, it has always played a very important role as a reinforcement of composite materials. The composite material reinforced with glass fiber not only overcomes the defects of low strength and modulus of the resin itself, but also retains the characteristics of toughness and ductility of the resin. Therefore, in the past few decades, glass fiber and its downstream composite material industry have developed rapidly. [0003] Improving the strength of composite materials is the problem and the direction of efforts that the glass fiber composite material industry has been facing. In recent years, different glass fiber companies have launched high-strength, high-modulus products one after another. Compar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C25/465C03C25/40C03C25/36
CPCC03C25/465C03C25/40C03C25/36
Inventor 杨国明张志坚徐胜杰章建忠费其锋姚尧平朱瑞鑫高厚喜范亮
Owner JUSHI GRP CO