Impregnating compound special for single-filament plastic coated yarn and preparation method thereof
A sizing and plastic-coating technology, which is applied in the field of special sizing for monofilament plastic-coated yarn and its preparation, can solve the problems of low fiber strength of glass fiber yarn, cumbersome preparation process, inconvenience, etc., and improve product strength and production efficiency , The preparation process is simple, and the effect is suitable for popularization and application
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[0018] The special sizing agent for monofilament plastic-coated yarn of the present invention is mainly composed of main film-forming agent-water-soluble polyurethane and epoxy resin emulsion, auxiliary film-forming agent-water-soluble epoxy resin, and coupling agent, lubricant, pH Value regulator and deionized water formulated. In addition, an antistatic agent and the like may be added as needed.
[0019] Wherein, the molecular weight of the water-soluble polyurethane is 4000-6000, and its mass percentage in the sizing agent is 8-15%.
[0020] The epoxy equivalent of the epoxy resin emulsion is 200-400, and the molecular weight is 400-800.
[0021] The mass percentage in the sizing agent is 2-5%.
[0022] The mass percentage of the water-soluble epoxy resin is 0.5-2%.
[0023] The coupling agent can be a silane coupling agent, and its mass percentage in the wetting agent is 0.2-0.4%.
[0024] The mass percentage of the lubricant in the sizing agent is 0.11-1.1%, which can...
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