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, due to the presence of chloride ions and reduce its electrical insulation pvc plastic pipe, if a large amount of chloride ions can not be alkaline stabilizer (e.g. lead salts) by pvc plastic pipe in and will result in decreased electrical insulation properties. Unlike PVC, polyethylene, polypropylene such non-polar polymer, its electrical properties with frequency and temperature-dependent pvc plastic pipe fittings, such as the dielectric constant decreases with increasing frequency. PVC polymer is amorphous, no sharp melting point, is heated to 120 ~ 150 ℃ having plasticity. Because of its poor thermal stability, at the same temperature containing a small amount of HCl released to promote further product decomposition pvc plastic pipe, it must be added to the alkaline stabilizer and HCl and inhibit its catalytic cracking reactions. Pure PVC is hard products, the need to add the right amount of plasticizer to make it soft for different products need to join, such as UV absorbers, fillers, lubricants, pigments, preservatives and other additives in order to attain good PVC products performance. And other like plastics, resin properties determine product quality and processing conditions. Of PVC, the resin properties and processing related are: particle size, thermal stability, molecular weight, fish eyes, bulk density, purity and foreign matter, porosity. There paste for PVC paste viscosity and gelling properties, should be determined to try, easy to grasp the processing conditions and product quality. pvc plastic pipe, pvc plastic pipe, sea Widex Widex provided by Qingdao Rubber Material Co., Ltd. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) (http://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! You can also access (http://haihuidaxiangsu.com/supply_details_38499254.html), for more information about the company.