A kind of glass fiber sizing agent for transparent mat and its preparation method and application

A technology for sizing and felt, applied in the field of glass fiber sizing for transparent felt and its preparation, can solve the problems of many white filaments in glass fiber felt, short service life of products, poor compatibility, etc., and achieve good transparency, The effect of high product strength and good weight

Active Publication Date: 2022-02-01
JUSHI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, polyvinyl acetate or a mixture of polyvinyl acetate and polyester emulsion is used as a film-forming agent for glass fiber sizing for mats in China. The problems caused by this are: first, due to the refractive index of polyvinyl acetate and glass, The refractive index of the matrix resin has a large difference, the matching is not good, and the produced glass fiber mat has many white filaments; secondly, due to the poor compatibility between polyvinyl acetate and the reinforced matrix resin, the products produced have a short service life and low strength. high

Method used

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  • A kind of glass fiber sizing agent for transparent mat and its preparation method and application
  • A kind of glass fiber sizing agent for transparent mat and its preparation method and application
  • A kind of glass fiber sizing agent for transparent mat and its preparation method and application

Examples

Experimental program
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preparation example Construction

[0051] The preparation method of this sizing agent comprises the following steps:

[0052] Pre-dispersed silane coupling agent: In the first disperser, add deionized water with a weight of 20 to 40 times the weight of γ-methacryloxypropyl trimethoxysilane, add a pH value regulator, and control the pH value at 3.5~4.0, add γ-methacryloxypropyl trimethoxysilane under stirring state, control the stirring speed at 50~150r / min, and stir for 10~20 minutes;

[0053] In the second disperser, add deionized water whose weight is 10 to 30 times the weight of the composition of cationic benzylaminosilane, add a pH adjuster, control the pH value at about 3.5 to 4.5, and add cationic benzylamino silane under stirring For the composition of silane, the stirring speed is controlled at 50-150r / min, stirring for 10-20 minutes;

[0054] Pre-dissolve and dilute the lubricant: add deionized water at 85-90°C in an amount 15-25 times the weight of the lubricant in the first container, then add glac...

Embodiment

[0063] In the examples of the present invention, the coupling agent γ-methacryloxypropyl trimethoxysilane is produced by EVONIC Company, and the model is MEMO; the cationic benzylaminosilane is produced by EVONIC Company, and the model is 1161;

[0064] The lubricant uses alkyl imidazoline derivatives;

[0065] The antistatic agent adopts quaternary ammonium methyl sulfate, AO5620 and ammonium chloride;

[0066] The pH regulator uses acetic acid,

[0067] Film-forming agent: Bisphenol A type unsaturated polyester emulsion is from JS-111 of COIM company in Italy, and bisphenol A type epoxy emulsion is from Jushi Group TX-209;

[0068] The final pH value of the infiltrating agent is controlled at 3.5-6.0, and the LOI value is controlled at 0.25-0.8%.

[0069] Table 1 list of specific examples of wetting agent

[0070]

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Abstract

The invention provides a glass fiber sizing agent for transparent felt, the content of each component is expressed in weight percentage as follows: 0.15-2.0% of silane coupling agent; 2.0-24.0% of film-forming agent; 0.01-2.0% of lubricant; Static agent 0.01-1.5%; pH regulator 0.05-2.0%; water 69-97%. Coating the glass fiber with this sizing agent can change the physical and chemical properties of the glass fiber surface, effectively improve the dispersion of the glass fiber in the process of producing the glass fiber mat, and increase the penetration speed of the glass fiber mat; solve the problem of glass fiber mat and The matching problem of the refractive index of the matrix resin improves the transparency of the glass fiber felt products; the produced glass fiber felt products have very good light transmittance, high product strength, and long service life.

Description

technical field [0001] The invention relates to the technical field of glass fiber sizing agents, in particular to a glass fiber sizing agent for transparent mats and a preparation method and application thereof. Background technique [0002] Glass fiber sizing technology is one of the most critical technologies for glass fiber production. It not only determines the production and performance of chopped strand mats, such as the uniformity of weight, soaking speed, and moldability of chopped strand mats, but also determines the quality of chopped strand mat products. The level of performance, such as light transmittance, strength, service life, etc. Generally, polyvinyl acetate or a mixture of polyvinyl acetate and polyester emulsion is used as a film-forming agent for glass fiber sizing for mats in China. The problems caused by this are: first, due to the refractive index of polyvinyl acetate and glass, The refractive index of the matrix resin has a large difference, the ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C25/42C03C25/40C03C25/36C03C25/32
CPCC03C25/32C03C25/36C03C25/40C03C25/42
Inventor 叶凤林顾桂江曹国荣杨萌周红娅
Owner JUSHI GRP CO
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