High-flame-retardant soft PVC coated polyester yarn high-molecular composite sun-shading material
A high flame-retardant, polyester yarn technology, applied in the field of polymers, can solve the problem of low limit oxygen index of soft PVC, achieve good anti-ultraviolet performance, anti-ultraviolet atmospheric aging, and promote the effect of charring
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[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. The process flow is:
[0013] 1. Use a high-speed mixer to make PVC resin powder, flame retardant and other auxiliary materials into mixed raw materials; 2.
[0014] Highly flame-retardant PVC particles are made through a twin-screw extruder and screened through a vibrating screen;
[0015] 3. Melt the screened raw materials into molten PVC under high temperature conditions;
[0016] 4. The polyester yarn is made of PVC-coated polyester yarn t...
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