Stabilizers
Heat Stabilizers
Poly Vinyl Chloride (PVC) is an essential material for our daily life. It is used in everything from rigid products like pipes and window profiles to flexible products such as electrical cables and wrapping film.
Even though PVC is one of the most commercial polymers, it is thermally unstable at processing temperatures. When PVC is heated to between 170° and 180°, the chlorine and hydrogen present in the molecules are eliminated, and hydrochloric acid gas (HCI) is released. The HCl catalyses more degradation, and the degradation can become explosive, releasing large quantities of corrosive HCl and other toxic gases. Exposure to Ultraviolet Radiation (sunlight) also breaks up polymer chains but is much slower than heat degradation.
The presence of a stabiliser will prevent this initial release of hydrogen chloride from PVC, replace the weakened carbon-chlorine bonds and prevent oxidation to safeguard the vinyl product.
Thus, PVC Stabilisers are added either directly into PVC or in combination to prevent oxidation, chain scission, uncontrolled recombination, and cross-linking reactions caused by photo oxidation. Essentially, they protect PVC from the harmful effects of extreme temperature and ultraviolet radiation and help PVC products to show durability and increase mold stability.
PVC Stabilisers are mainly used in the manufacture of Pipes and Fittings, Window Profiles, Rigid and semi-rigid films, wires and cables, coatings, and flooring etc.
At Mahavir Group, we deal in Heat Stabilizers manufactured by Baerlocher. Baerlocher is the world’s leading PVC additives supplier with manufacturing facilities in 14 countries. We, as a Consignee Stockist for Baerlocher, deal in these types of PVC Stabilizers: