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PVC film chemical and physical properties
Aug 21, 2018

The pvc film has been widely used in various places, why is it so popular? With its good performance, simple craftsmanship and many other advantages, PVC has gradually won people's favor and received more people's favor. Both pvc film and pvc film have their own characteristics. The chemical and physical properties of pvc film are introduced below.

Rigid PVC is one of the most widely used plastic materials. PVC is actually a vinyl polymer material whose material is a non-crystalline material. PVC materials are often added with stabilizers, lubricants, auxiliary processing agents, colorants, impact agents and other additives in actual use. It has non-flammability, high strength, weather resistance and excellent geometric stability. PVCpvc transparent film has strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid, concentrated nitric acid, and is also not suitable for contact with aromatic hydrocarbons or chlorinated hydrocarbons.

The melting temperature of PVC during processing is a very important process parameter. If this parameter is improper, it will cause the problem of material decomposition. The flow characteristics of PVC are rather poor and the process range is narrow. In particular, large molecular weight PVC materials are more difficult to process (this material usually incorporates a lubricant to improve flow characteristics), so small molecular weight PVC materials are commonly used. The shrinkage rate of PVC is quite low, generally 0.2 to 0.6%.

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