Non-woven fabric (English name: Non-Woven Fabric or Nonwoven cloth, also known as Woven cloth, is composed of oriented or random fiber, is a new generation of environmental protection materials, It has the characteristics of moisture-proof, breathable, flexible, lightweight, non-combustion-supporting, easy decomposition, non-toxic and non-irritating, rich color, low price, recycling, and reuse, etc. Such as the use of polypropylene (PP material) granule as raw material, after high-temperature melting, spinneret, paving, hot rolling continuous one-step production. It is called cloth because it has the appearance of cloth and certain properties.

PVC is Polyvinyl chloride, English abbreviation PVC (Polyvinyl chloride), is vinyl chloride monomer (VCM) in the peroxide, azo compounds, and other initiators; Or under the action of light and heat according to the free radical polymerization reaction mechanism of polymer. Vinyl chloride homopolymer and vinyl chloride copolymer are called vinyl chloride resins. The material is an amorphous material. In the actual use of PVC materials, stabilizers, lubricants, auxiliary processing agents, colors, impact-resistant agents, and other additives are often added. It has non-flammability, high strength, weather resistance, and excellent geometric stability.PVC is highly resistant to oxidants, reducing agents, and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.

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