Abstract
In the molding process for hard polyvinyl chloride, heat stabilizer must be used in order to prevent the decomposition of polymer by heat. For this purpose, the stabilizer containing lead has been used because of its excellent heat stability and low cost. Since the city water quality standard was revised,it was necessory to develop a new heat stabilizer to substitute the one containing lead. This paper reports the development of a new stabilizer and the optimization of an injection molding process through parameter design.
