What is Ca Zn stabilizer?
Ca Zn stabilizer is Calcium-Zinc based stabilizers (Ca-Zn) are new generation stabilizers which gained importance in PVC market Being completely Non-Toxic, Calcium Zinc Stabilizers are widely used in PVC rigid and flexible objects. It comes in liquid and powder from. It has excellent thermal stability, good lubricity, non-toxic and tasteless, no plate out.
Ca Zn stabilizer is used in many industries, liquid Ca Zn stabilizer is used for transparent films, opaque films, food package films, toys, cling films, etc. Powder Ca Zn is used for PVC rigid product, such as pipe, fitting, profile, roffing, foaming board, wire&cable, edge banding.
Heat stabilizers not only to protect it against the high temperatures the resin might see during processing, but also the high heat it may encounter in storage or autoclaving . Barium-zinc additives are very effective heat stabilizers for PVC but are restricted for medical applications in some countries. Alternatives like calcium-zinc formulations are often used to stabilize medical-grade PVC against heat. Heat stabilizers trap the hydrogen chloride that is generated when PVC decomposes at high temperatures and prevent discoloration and degradation. Rigid PVC typically contains between 10% and 15% by weight of additives like heavy metal salts of lead, tin, barium and zinc, or organotin compounds.
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