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Glass fiber impregnating compound and preparation method and application thereof

A technology for glass fiber and sizing agent, applied in the field of glass fiber sizing agent and its preparation, can solve problems such as performance degradation, achieve low stiffness, be beneficial to subsequent processing and mechanical strength, and reduce excessive looseness.

Pending Publication Date: 2020-04-10
NANJING FIBERGLASS RES & DESIGN INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the existing glass fiber products treated with glass fiber sizing agents have higher hardness after long-term storage and performance degradation due to the intrusion of water molecules in a high-temperature and high-humidity environment, thereby A glass fiber sizing agent is provided; at the same time, the invention also provides a preparation method and application of the glass fiber sizing agent

Method used

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  • Glass fiber impregnating compound and preparation method and application thereof
  • Glass fiber impregnating compound and preparation method and application thereof
  • Glass fiber impregnating compound and preparation method and application thereof

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preparation example Construction

[0040] The preparation method specifically comprises the following steps:

[0041] (1) Add acetic acid to the first mixing container, add deionized water while stirring until the pH of the solution is 3.0 to 6.0, then add the silane coupling agent while stirring, and continue stirring until the surface of the solution is clear to obtain the silane coupling agent solution;

[0042] (2) Add the first epoxy resin emulsion in the second mixing container, add its 5 times of quality deionized water while stirring, then add the second epoxy resin emulsion, add its 5 times of its quality deionized water while stirring Ionized water to obtain diluted epoxy resin emulsion;

[0043] (3) Epoxy resin emulsion 681 is fully diluted with deionized water of 5 times its quality and then added to the second mixing container, and stirred evenly;

[0044] (4) Fully dilute silicone 1240, NBR-1160 and pentaerythritol with deionized water of 10 times the mass respectively, then add them to the seco...

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Abstract

The invention belongs to the technical field of impregnating compounds, and discloses a glass fiber impregnating compound and a preparation method and application thereof. The impregnating compound comprises a film-forming agent, a coupling agent, a lubricant, a wetting agent and a pH regulator, wherein the film-forming agent comprises two bisphenol A type epoxy resin emulsions with different epoxy equivalents. Compared with usage of an epoxy resin emulsion with a single epoxy equivalent as a film-forming agent, the film-forming agent disclosed by the invention has the advantages that the film-forming agent can ensure sufficient coating force of the epoxy resin emulsions on the surfaces of yarns and allow the yarns to have better softness; even if the yarns are stored for a long time, theyarns still have low stiffness, which is beneficial for subsequent processing and mechanical strength of a composite material; and meanwhile, the yarns have better damp-heat resistance and still havea good strength retention rate in a high-temperature and high-humidity environment due to matched use of the film-forming agent and the coupling agent.

Description

technical field [0001] The invention relates to the technical field of sizing agents, in particular to a glass fiber sizing agent and its preparation method and application. Background technique [0002] Glass fiber is a kind of reinforcing material. It has various types, heat resistance, high tensile strength, good insulation and corrosion resistance. It is an inorganic non-metallic material with excellent performance. Compared with ordinary glass fiber, high-performance glass fiber has higher mechanical properties, heat resistance temperature, stronger corrosion resistance, better dielectric and electrical insulation properties, etc. It is mainly used in aviation, aerospace, weapons, nuclear industries, etc. Defense field. But at the same time, glass fiber also has the disadvantages of high brittleness, non-wear resistance, easy static electricity after friction, and poor processing performance. When used as a reinforcing material for resin, it has poor adhesion to resin....

Claims

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Application Information

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IPC IPC(8): C03C25/465C03C25/40C03C25/36C03C25/25
CPCC03C25/465C03C25/40C03C25/36C03C25/25
Inventor 嵇跃云李佳宋伟曹平黄欣张旻川
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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