Factory!! Raw Plastic Pvc Resin Sg5/k67/ Pvc Scrap/virgin Pvc Granules Raw Material Manufacturer

Polyvinyl chloride (PVC) is the most commonly used polymer in coating textiles. This polymer is manufactured from the free radical polymerization of vinyl chloride. It is a hard rigid solid that, if used as a coating material for technical textiles, needs to be changed to a soft flexible film. This is possible because of a remarkable property of PVC, the ability of the powdered polymer to absorb large quantities of non-volatile organic liquids, known as plasticizers. Plasticized PVC forms a clear film which shows good abrasion resistance and low permeability. The film may be pigmented or filled with flame-retardant chemicals to produce coloured products of low flammability. The coatings are resistant to acids and alkalis but organic solvents can extract the plasticizer, making the coatings more rigid and prone to cracking.⁴

One great advantage of a polymer with an asymmetric chlorine atom is its large dipole and high dielectric strength. This means that the coated product may be joined together by both radiofrequency and dielectric welding techniques. This factor combined with its low price makes it ideal for protective sheetings such as tarpaulins, where its low permeability and good weathering properties make it a very cost-effective product.

However, in the case of PVC coatings, despite the outstanding price performance ratios of PVC coatings on technical textiles, there is an increasing interest in alternatives that do not contain chlorine, because of their ecological acceptance. Monomeric vinyl chloride is carcinogenic and there are problems with the recycling process due to the chlorine. Hydrogen chloride is released and a build-up of dioxin is possible under unfavourable conditions. Chlorine-free coatings, for instance polyacrylates and polyurethanes, have already been successfully applied. However, the new replacement coatings with equivalent properties to those of PVC have not been able to achieve the economic efficiency of PVC.

Polyvinyl chlorides are used to make waterproof garments, industrial clothing that is resistant to oil, grease and chemicals, and sturdy bags.

Hot Tags: factory!! raw plastic pvc resin sg5/k67/ pvc scrap/virgin pvc granules raw material manufacturer, China factory!! raw plastic pvc resin sg5/k67/ pvc scrap/virgin pvc granules raw material manufacturer manufacturers, suppliers, factory, hdpe 150, non woven polypropylene geotextile, titanium dioxide and uv light, tpu 1301, plastic bottle manufacturing raw materials, POLYVINYL CHLORIDE Resin PVC