Impregnating compound special for single-filament plastic coated yarn and preparation method thereof
A technology of sizing and plastic coating, which is applied in the field of special sizing agent for monofilament plastic coating yarn and its preparation, which can solve the problems of easy clogging of abrasive tools, high production cost, and difficult operation.
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[0018] The special sizing agent for monofilament plastic-coated yarn of the present invention is mainly composed of the main film-forming agent—water-soluble polyurethane and epoxy resin emulsion, the auxiliary film-forming agent—water-soluble epoxy resin, and coupling agent, lubricant, pH It is formulated with value regulator and deionized water. In addition, antistatic agents can be added as needed.
[0019] Among them, the molecular weight of the water-soluble polyurethane is 4000-6000, and the 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 to 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 the mass percentage in the sizing agent is 0.2-0.4%.
[0024] The mass percentage of the lubricant in the sizing agent is 0.11 to 1.1%, and specif...
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