VINYL CHLORIDE RESIN WITH LOW VISCOSITY FOR FOAMING APPLICATION AND METHOD OF PREPARING THE SAME

摘要

PURPOSE: A vinyl chloride resin is provided to improve high shear and low shear viscosity property by controlling a particle size used in a seed emulsion polymerization. CONSTITUTION: A vinyl chloride resin is formed by polymerizing vinyl chloride small seed particles with 0.15~0.5 micron average particle diameter and vinyl chloride big seed particles with 0.51~0.8 micron average particle diameter. The content ratio of the vinyl chloride big seed particles to the vinyl chloride small seed particles is 1-2. The vinyl chloride small seed particles are prepared by emulsion polymerization.