METHODS OF PREPARING EXPANDABLE POLYSTYRENE COMPRISE INSERTING ADDITIVE STYRENE MONOMER

摘要

PURPOSE: A producing method of an expandable polystyrene resin is provided to improve the production efficiency of polystyrene batch-by-batch. CONSTITUTION: A producing method of an expandable polystyrene resin, suspending a styrene monomer from a polymerization system containing the styrene monomer, an initiator, and water using an EPS production method, comprises a step of inserting the styrene monomer at the range of reduced polymerization volume. The time to insert the styrene monomer is within the start-up process rate of 0.4.