Full name Polyvinylchlorid, the main ingredients of , bright color, corrosion resistance, durability, due to an increase in the manufacturing process of plasticizer, anti-aging agent toxic support material to enhance its heat resistance, toughness, ductility and so on, so the products generally do not store food and medicine. pvc foil is loved the world today, is quite popular and also widely used as a synthetic material. Its global use of synthetic materials in various ranks second. According to statistics, only the year 1995, production in Europe will have about 5 million tons, while its consumption was 5.3 million tons. In Germany, PVC production and consumption of an average of 1.4 million tons. pvc foil is the growth rate of 4% worldwide by production and application. growth in Southeast Asia in recent years, several particularly significant, thanks to the Southeast Asian countries have carried out the urgent needs of infrastructure construction. Three-dimensional surface film can be produced in the material, PVC is the most suitable material.

  Rigidity pvc foil is the most widely used plastic materials. PVC is actually a vinyl polymer material, the material is a non-crystalline materials. PVC materials are often added in the actual use of stabilizers, lubricants, auxiliary processing agents, pigments, impact agents and other additives. Is not easily flammable, high strength, resistance to climate variability and excellent geometric stability. on the oxidant, reductant and acid have a strong resistance. However, it can be concentrated oxidizing acid such as sulfuric acid, concentrated nitric acid is corrosive and does not apply and aromatic hydrocarbons, chlorinated hydrocarbon exposure occasions.

 pvc foil melting temperature in the processing time is a very important process parameters, if this parameter incorrectly will result in material decomposition. The flow characteristics of PVC very poor, very narrow scope of its technology. In particular, high molecular weight PVC material more difficult to process (this material is usually added to improve the flow characteristics of lubricants), so commonly used are small molecular weight PVC material. pvc foil shrinkage rate is very low, generally 0.2 to 0.6%.

  Flow channel and the gate: all the conventional gate can be used. If the processing of smaller components, the best use of needle-type gate or submerged gates; for thicker parts, it is best to use fan-shaped gate. Needle-type gate or submerged gate minimum diameter should be 1mm; fan gate thickness not less than 1mm.

  Typical use: PVC with rich raw materials (oil, limestone, coke, salt and natural gas), manufacturing processes mature, low cost, wide range of uses such prominent features, which has become the world"s second largest behind General polyethylene resin resin.