Abstract: The effects of calcium-zinc composite stabilizer, organo-tin stabilizer, and other thermal-resistant additives on the dynamic thermal stability of chlorinated poly(vinyl chloride)(CPVC) resin were studied. The effects of inner and external lubricants on the processing behavior of CPVC was investigated. A formulation of CPVC compound used for plastic pipes was suggested, and resulted mechanical properties were compared with those of the commercial products.

Key words: lubricant, chlorinated polyvinyl chloride, organo-tin stabilizer, calcium-zine composite stabilizer