Preparation method of knitted composite fabric adapted to high-frequency welding
A high-frequency welding and composite fabric technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of low production efficiency, limited application scope and high production cost, and achieve high production efficiency, Good comfort and good flame retardant performance
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Embodiment 1
[0064] According to the proportion of the formula, the raw materials of the following components are weighed: polyvinyl chloride resin 67%, diisodecyl phthalate 26%, flame retardant (trichloropropyl phosphate) 3.5%, stabilizer (stearic acid Zinc) 2.5%, toner 0.8%, white oil 0.2%.
[0065] According to the following process flow:
[0066] Such as image 3 As shown, the components of the above formula ratio are mixed uniformly, and added to the film extruder to prepare a polyvinyl chloride layer suitable for high-frequency welding, and then the polyester fiber layer 1 after knitting is placed on the calender composite machine, When the above-mentioned polyvinyl chloride layer suitable for high-frequency welding is extruded from the extrusion die 5 of the extruder, it enters the composite roller 3 in the calender composite machine at the same time as the polyester fiber layer for calender composite, and then passes through 5 sets of shaping rollers 4 Sizing, finally cut into loo...
Embodiment 2
[0072] According to the formula ratio, the raw materials of the following components were weighed: 65% of polyvinyl chloride resin, 25% of diisodecyl phthalate, 3% of foaming agent (azodicarbonamide is also called foaming agent AC), Flame retardant (trichloropropyl phosphate) 3.5%, stabilizer (zinc stearate) 2.5%, toner 0.8%, white oil 0.2%.
[0073] The preparation process is the same as in Example 1, and the specific process parameters are as shown in Table 2 below, and the following preparations are prepared: figure 2 The shown knitted composite fabric for high frequency welding with foamed polyvinyl chloride layer:
[0074] Table 2 List of composite parameters for foamed PVC extrusion
[0075] Unit: voltage (V), current (A), temperature (℃), pressure (Mpa), speed (r / min)
[0076]
Embodiment 3
[0078] According to the proportion of the formula, the raw materials of the following components were weighed: 65% of polyvinyl chloride resin, 23% of diisodecyl phthalate, 3% of foaming agent (azodicarbonamide is also called foaming agent AC), Flame retardant (trichloropropyl phosphate) 3.5%, stabilizer (zinc stearate) 2.5%, toner 0.8%, white oil 0.2%, talcum powder 2%.
[0079] The preparation process is the same as in Example 1, and the specific process parameters are the same as in Example 2.
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