Film forming agent suitable for glass fibers, impregnating agent comprising same, and preparation method and applications of impregnating agent

A glass fiber and sizing technology, which is applied in the field of glass fiber sizing and sizing, can solve the problems of low fatigue strength and achieve the effects of reducing interfacial energy, strong coating, and improving fatigue resistance

Active Publication Date: 2019-09-20
SINOMA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low fatigue strength of the glass fiber winding yarn product obtained by processing the glass fiber sizing agent using epoxy resin emulsion as a film-forming agent in the prior art, thereby providing a suitable A film-forming agent for glass fibers, and a high-performance glass fiber sizing comprising the film-forming agent; meanwhile, the present invention also provides a preparation method and application of the sizing

Method used

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  • Film forming agent suitable for glass fibers, impregnating agent comprising same, and preparation method and applications of impregnating agent
  • Film forming agent suitable for glass fibers, impregnating agent comprising same, and preparation method and applications of impregnating agent
  • Film forming agent suitable for glass fibers, impregnating agent comprising same, and preparation method and applications of impregnating agent

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Embodiment 1

[0045] The present embodiment provides a glass fiber sizing, and its formula is as follows:

[0046] Epoxy resin emulsion 35kg; polyurethane emulsion NBR-460 5kg; A-1120 6.2kg; A-1741.5kg; NBR-1140 4.5kg; NBR-1090 5.5kg; A-008 0.5kg; Acetic acid 1kg; deionized water to make up to 1000kg.

[0047] The method for preparing the glass fiber sizing agent by adopting the above formula is as follows:

[0048] (1) Add the acetic acid into the first mixing container, stir and add deionized water until the pH of the aqueous solution is 6, then add A-1120 and A-174 while stirring, and continue stirring until the surface of the liquid is clarified to obtain the silane di Joint agent solution;

[0049] (2) Add epoxy resin emulsion in the second mixing container, add the deionized water of 5 times of quality of epoxy resin emulsion again, stir, obtain the epoxy resin emulsion of dilution;

[0050] (3) After the polyurethane emulsion NBR-460 is fully diluted with deionized water of 5 time...

Embodiment 2

[0055] The present embodiment provides a glass fiber sizing, and its formula is as follows:

[0056] Epoxy resin emulsion 40kg; polyurethane emulsion NBR-460 0.5kg; A-1120 6.2kg; A-1741.5kg; NBR-1140 4.5kg; NBR-1090 5.5kg; A-008 0.5kg; ; Acetic acid 3.1kg; deionized water to make up to 1000kg.

[0057] The method for preparing the glass fiber sizing agent by adopting the above formula is as follows:

[0058] (1) Add the acetic acid to the first mixing container, stir and add deionized water until the pH of the aqueous solution is 5, then add A-1120 and A-174 while stirring, and continue stirring until the surface of the liquid is clear to obtain silane coupling agent solution;

[0059] (2) Add epoxy resin emulsion in the second mixing container, add the deionized water of 5 times of quality of epoxy resin emulsion again, stir, obtain the epoxy resin emulsion of dilution;

[0060] (3) After the polyurethane emulsion NBR-460 is fully diluted with deionized water of 5 times it...

Embodiment 3

[0065] The present embodiment provides a glass fiber sizing, and its formula is as follows:

[0066] Epoxy resin emulsion 36.5kg; polyurethane emulsion NBR-460 1.5kg; A-1120 6.2kg; A-1741.5kg; NBR-1140 5kg; NBR-1090 3kg; A-008 0.5kg; Acetic acid 5kg; deionized water to make up to 1000kg.

[0067] The method for preparing the glass fiber sizing agent by adopting the above formula is as follows:

[0068] (1) Add the acetic acid to the first mixing container, stir and add deionized water until the pH of the aqueous solution is 3, then add A-1120 and A-174 while stirring, and continue stirring until the surface of the liquid is clear to obtain silane coupling agent solution;

[0069] (2) Add epoxy resin emulsion in the second mixing container, add the deionized water of 5 times of quality of epoxy resin emulsion again, stir, obtain the epoxy resin emulsion of dilution;

[0070] (3) After the polyurethane emulsion NBR-460 is fully diluted with deionized water of 5 times its mass...

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Abstract

The invention relates to the technical field of impregnating agents, and discloses a film forming agent suitable for glass fibers, an impregnating agent comprising the same, and a preparation method and applications of the impregnating agent. The film forming agent comprises emulsified bisphenol A type epoxy resin and polyester type polyurethane. Through the emulsification effect of a surfactant, the interfacial energy of a system is reduced, the stability of epoxy resin emulsion is improved, and thus the function of the epoxy resin emulsion can be better exerted. The polyester polyurethane film forming agent has a large molecular weight and a strong yarn-wrapping performance and easily forms a compact film on the surface of glass fibers, thus the glass fibers are isolated from the external environment, water will not enter the cracks of the glass fibers, the elasticity and wear resistant performance of yarns are improved, the anti-fatigue performance of yarns is strengthened, at the same time, the bundling force is high, and the phenomenon of yarns such as natural draping, non-uniform tension force, and the like, is effectively relieved.

Description

technical field [0001] The present invention relates to the technical field of sizing agent, in particular to the technical field of glass fiber sizing agent, and more specifically, to a film-forming agent suitable for glass fibers, a sizing agent containing the film-forming agent, and a preparation method and application of the sizing agent . Background technique [0002] High-performance glass fiber means that compared with ordinary glass fiber, it has higher mechanical properties, heat-resistant temperature, stronger corrosion resistance, better dielectric and electrical insulation properties, etc. It is one of the high-performance composite materials. It is a kind of reinforced material, which is mainly used in national defense fields such as aviation, aerospace, weapons, and nuclear industry. However, when glass fiber is used as a reinforcing material, the bonding performance between the resin substrate and the resin substrate is poor, which undoubtedly affects the mec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/465
CPCC03C25/465
Inventor 李佳嵇跃云曹平黄欣张旻川
Owner SINOMA SCI & TECH
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