PVC
What is PVC and what are its uses?
PVC or Polyvinyl chloride is a very widely used type of plastic, which is one of the most widely used and valuable products of the petrochemical industry. This polymer is produced in about 45 million tons annually in the world, and after polyethylene (PE) and polypropylene (PP), it is the most widely used polymer material in the world.
PVC
kind of PVCs you can order from us
S PVC
E PVC
In this method, vinyl chloride monomer is made into very small grains (about 50 to 150 microns) and is suspended in water under pressure and spread. These particles are insoluble in water, stabilizers such as starch and gelatin are used to facilitate the distribution of these particles and also to prevent them from sticking to each other. After the progress of the reaction and the conversion of 80 to 90% of the monomer into polymer, the unreacted monomers are removed from the autoclave and the resulting PVC resin is separated by a filter or centrifuge.
This type of PVC is usually used as a powder raw material to feed the extruder. Since the water absorption in S-PVC is very low (approximately 5 to 10 mg), it can be used in the production of transparent products.
In this method, vinyl chloride monomer is turned into a liquid under high pressure and temperature, and this liquid is converted into an emulsion in water with the help of emulsifiers, and polymerization is performed using water-soluble catalysts.
In this case, the molecular weight of the obtained product will depend on the reaction temperature. In fact, at high temperature, polymer with low molecular weight is produced, and vice versa, as the temperature decreases, the molecular weight of the polymer also increases. In any case, due to the presence of more impurities in type E PVC, its mechanical and electrical properties are lower than type S. E-PVC is mostly used to produce synthetic leather, wall paper, gloves.
E-PVC 6834
Arvand PVC 6834 or ethylene chloride polymer is a material in solid chemical form, in powder form, white, odorless, flammable, tasteless, which has the ability of strength, rigidity and excellent resistance to corrosion and chemicals is.