PVC is dependent on the electrical properties of the polymer residue number, formulation type and amount of various additives. Also with the electrical properties of PVC heat circumstances: When heating PVC decomposition pvc plastic sheet supply, due to the presence of chloride ions and reduce its electrical insulation, if a large amount of chloride ions can not be alkaline stabilizer (e.g. lead salts) The neutralization will result in decreased electrical insulation properties. Unlike PVC, polyethylene, polypropylene such non-polar polymer, its electrical properties with frequency and temperature-dependent, such as the dielectric constant decreases with increasing frequency. PVC melt temperature during processing is a very important process parameters characteristic of pvc plastic sheet, if this argument would lead to inappropriate material decomposition problem. Very poor flow characteristics of PVC plastic pvc sheet metal processing, the process is very narrow range. Especially high molecular weight PVC material more difficult to process (this material is usually added to improve the flow characteristics of lubricant), it is often used are low molecular weight PVC material. PVC contraction rate is very low, typically 0.2 to 0.6%. Softening point close to the decomposition temperature of the polyvinyl chloride resin. It has begun to decompose at 140 ℃, the decomposition at 170 ℃ when more quickly. In order to ensure the normal molding process, PVC resin provides for the two most important process indicators, namely the decomposition temperature and heat stability. The so-called decomposition temperature is the temperature when a large number of release hydrogen chloride, the so-called heat stability is at a certain temperature conditions (typically 190 ℃) is not a lot of time to release hydrogen chloride. PVC prolonged exposure to 100 ℃, unless adding a basic stabilizer, or will decompose, if it exceeds 180 ℃ the rapid decomposition. pvc plastic sheet products | pvc plastic sheet | sea Widex Widex provided by Qingdao Rubber Material Co., Ltd. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) strong, credible, in Qingdao, Shandong industrial products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the sea Widex and you work into the brilliant, for a better future!