Introduction to PVC

PVC is the abbreviation of polyvinyl chloride (PVC). The full name of the English name is polyvinyl chloride. Due to the influence of light, the thermal and thermal stability of the thermally polymerized vinyl chloride monomer and polymer is poor. It is released at 170 ° C, so it must be added. The practical application of stabilizers to improve light and heat resistance.

Polyvinyl chloride is one of the world's largest producers of ordinary plastics. Although it has exceeded abs plastics, it is still because of its low price and other factors, pipe fittings, building materials, industrial products, wire and cable, daily necessities, floor tiles, packaging. Films, sealing materials, foam materials are widely used, and the like.

The main hazard of PVC materials

PVC itself is not toxic, but the addition of plasticizers, stabilizers and other materials added to the material is mostly toxic. The main plasticizers and stabilizers include dibutyl diester, dioctyl phthalate and lead lead stearate, all of which are toxic. Adding lead stearate as a stabilizer for the contact of PVC materials with ethanol, ether and other solvents will precipitate lead and lead. As a toxic heavy metal, it has great harm to various organs of the human body. This lead compound is a compound regulated by the eu chemical authority. If the content of PVC material exceeds 0.1%, it is forbidden to sell.