PVC pipe extrusion moulding process capable of effectively increasing impact strength
A technology of impact strength and PVC pipes, applied in the direction of organic insulators, plastic/resin/wax insulators, electrical components, etc., to achieve the effects of convenient construction, excellent chemical stability, and excellent dielectric properties
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[0046] Example 1: A PVC pipe extrusion molding process that can effectively improve impact strength. The pipe formulation includes PVC resin, impact modifier, stabilizer, processing modifier, filler, pigment and external lubricant, specifically including Prepared in the following steps: various materials-weighing-kneading-extrusion granulation-extrusion molding-cooling molding-cutting-inspection-finished product;
[0047] 2) Mixing process
[0048] During high-speed mixing, the auxiliary agent penetrates into the voids of the PVC resin to make the auxiliary agent uniformly dispersed in the resin. Considering that the temperature above 1000°C is beneficial to the steaming of the material, the temperature of the hot mixer is set at 100-1200°C ; In order to allow the additives to fully contact with the PVC particles and reduce the adsorption of the filler to the additives, the hot mixer should be started after adding the PVC resin,
[0049] Add stabilizer at a temperature of 100-300℃; ...
Example Embodiment
[0083] Example 2: A PVC pipe extrusion molding process that effectively improves impact strength. The pipe formulation includes PVC resin, impact modifier, stabilizer, processing modifier, filler, colorant and external lubricant, specifically including Prepared by the following steps: various materials-weighing-kneading-extrusion granulation-extrusion molding-cooling molding-cutting-inspection-finished product;
[0084] 3) Mixing process
[0085] During high-speed mixing, the auxiliary agent penetrates into the voids of the PVC resin to make the auxiliary agent uniformly dispersed in the resin. Considering that the temperature above 1000°C is beneficial to the steaming of the material, the temperature of the hot mixer is set at 100-1200°C ; In order to allow the additives to fully contact with the PVC particles and reduce the adsorption of the filler to the additives, the hot mixer should be started after the PVC resin is added;
[0086] Add stabilizer at a temperature of 100-300℃; ...
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