Is PVc equal to PVC resin?
PVC is equivalent to PVC resin, a substance, two statements.
PVC resin is a polar non crystalline polymer with strong acting force between molecules. It is a hard and brittle material with low impact strength. Join the impact modifier, the elastomer particles impact modifier can reduce the total craze initiation stress, and the deformation and shear of the particle itself, prevent craze expansion and growth, absorb the impact energy of materials in person, so as to achieve the purpose of anti shock. The particle size of the modifier is very small, so as to increase the number of modifiers per unit weight or volume per unit, thereby increasing the amount of the effective volume, thereby enhancing the ability to disperse stress. At present, it is widely used as an organic impact modifier.
PVC resin (polyvinylchloride) is one of the most important organic synthesis materials. English Name: Polyvinyl Chloride, chemical formula: (CH2-CHCL) n, the product has good physical and chemical properties, are widely used in industry, construction, agriculture, daily life, packaging, electricity, public utilities and other fields.PVC is synthesized by the polymerization of vinyl chloride by radical polymerization. Suspension polymerization, emulsion polymerization and bulk polymerization are the main methods of suspension polymerization, which accounts for about 80% of the total output of PVC. The industry generally PVC production process for vinyl chloride monomer to obtain the method to distinguish, can be divided into electric stone, and imported ethylene (EDC, VCM) monomer method (on the habits of the ethylene monomer and import system called ethylene method). According to the different production methods, PVC pure powder is divided into: universal PVC resin, high degree of polymerization PVC resin, cross-linked PVC resin. The general PVC resin by polymerization of vinyl chloride monomer is formed under the action of initiator; high degree of polymerization of PVC resin is resin in the polymerization of vinyl chloride monomer added to the system, the chain growth polymerization crosslinking agent; PVC resin is added to the resin crosslinking agent containing dienes and polyenes in vinyl chloride monomer polymerization polymerization system.
