A kind of glass fiber sizing agent and its application
A glass fiber and sizing technology, which is applied in the field of glass fiber sizing, can solve the problem of glass fiber dispersion, hairiness, electrostatic penetration speed, light transmittance, glass fiber and matrix resin refractive index mismatch, and production problems. The light transmittance of the lighting board is not good, etc., to achieve the effect of fast soaking speed, good chopping performance, and meeting the production process and performance requirements
Active Publication Date: 2022-02-01
JUSHI GRP CO
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Problems solved by technology
[0004] The sizing technology used in glass fiber reinforced transparent lighting panels in China was the first to use water-soluble epoxy resin 681 and water-soluble unsaturated polyester SR-1 as the main components of the sizing agent. Production needs, but the refractive index of the sizing agent does not match the glass fiber and matrix resin, and the light transmittance of the production daylighting panel is not good; in addition, the hydrophilicity of the sizing agent is too strong, and the interface with the matrix resin of the production daylighting panel The combination is not good, resulting in easy aging of the final product and short life
In the subsequent actual production process, the sizing formulation technology for transparent sheet production has also been updated and improved to a certain extent, but it still cannot effectively solve the contradictions among glass fiber dispersion, hairiness, static electricity, penetration speed, and light transmittance.
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[0051] Table 1 shows specific examples of the content of each component in some sizing agents, and the corresponding values of each component are mass percent / %. It should be pointed out that the specific example data in Table 1 does not limit the protection scope of the present invention.
[0052] in,
[0053] Coupling agent A is a silane coupling agent with amino groups, the model is S-70;
[0054] Coupling agent B is γ-methacryloxypropyltrimethoxysilane coupling agent, model A-06;
[0055] Film-forming agent A is an acrylic modified epoxy emulsion, model T-08, produced by the first branch of Jushi Group, and its Tg is between 10 and 25 °C;
[0056] Film-forming agent B is a silane coupling agent-modified cross-linked PVAc emulsion, model T-66, produced by the first branch of Jushi Group, and its Tg is between 18 and 30 °C;
[0057] Lubricant A is silicone emulsion;
[0058] Lubricant B is a cationic surfactant using polyethyleneimine quaternary ammonium salt;
[0059...
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Abstract
The invention discloses a glass fiber sizing agent, comprising the following components. The content of each component is expressed as a weight percentage: 0.4-1.2% of a silane coupling agent, 6.0-35.0% of a film-forming agent, and 0.08-2.0% of a lubricant , 0.06-2.8% of pH regulator, 59-93.46% of water; wherein, the film-forming agent is a composition of acrylic modified epoxy resin emulsion and silane coupling agent modified cross-linked PVAc emulsion. The untwisted roving for transparent sheet produced by this sizing formulation has the characteristics of good chopped performance, less hairiness, good dispersion in resin and high transparency, which can meet the quality requirements of customers.
Description
technical field [0001] The invention relates to the technical field of sizing agent and is suitable for glass fiber production, in particular to a glass fiber sizing agent and its application. Background technique [0002] Glass fiber reinforced plastic polyester substrate (continuous sheet), abbreviated as FRP, refers to the product made by impregnating glass fiber mat, glass fiber fabric or chopped fiber with unsaturated polyester resin, and then gel curing. The product is light, high strength, good impact resistance, especially has unique light transmission, but also has excellent corrosion resistance, atmospheric aging resistance, can simplify the design, easy installation and replacement. With the maturity of continuous sheet forming technology, the domestic continuous sheet yarn market is already very large; the production of transparent sheets, translucent sheets, colored sheets, anti-corrosion sheets, etc. are widely used in large industrial plants, supermarkets, sta...
Claims
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IPC IPC(8): C03C25/465C03C25/40C03C25/36
CPCC03C25/36C03C25/40C03C25/465
Inventor 张志坚颜飞章建忠刘阳杨萌朱春芽周铃张鑫徐琳晋吴祭民
Owner JUSHI GRP CO
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