Large-sized vinyl chloride seed, method of preparing the seed, vinyl chloride resin prepared using the seed, and method of preparing the vinyl chloride resin

摘要

The present invention relates to a large-sized vinyl chloride seed with an average particle size of 0.65 to 1.5 μm, a vinyl chloride resin with improved low-viscosity properties, and preparation methods thereof. The preparation of the large-sized vinyl chloride seed includes adding a vinyl chloride monomer, an emulsifier, and a polymerization initiator to an aqueous medium; homogenizing the mixed solution using a rotor-stator type homogenizer; and subjecting the resultant monomer droplets to a polymerization reaction.

主权项

1. A method of preparing a vinyl chloride resin comprising:
subjecting a large-sized vinyl chloride seed having an average particle size of 0.65 to 1.5 μm, a small-sized vinyl chloride seed having an average particle size of 0.08 to 0. 2 μm, a vinyl chloride monomer, an emulsifier, and an oil-soluble initiator to a seed emulsion polymerization.