Refinement method

The basic raw material of synthetic rubber is monomer, and the commonly used methods for refining include rectification, washing and drying.

Aggregation process

The polymerization process is a process in which monomers are polymerized under the action of initiators and catalysts to form polymers. Sometimes a polymerization device is used, sometimes multiple are used in series. The polymerization process of synthetic rubber mainly uses two kinds of emulsion polymerization method and solution polymerization method. Emulsion polymerization is used for styrene-butadiene rubber, isoprene rubber, butyl-propylene rubber, butyl rubber, etc.

post-processing

Post-processing is a process in which the polymerized material (latex or glue) is finally prepared into finished rubber through the steps of removing unreacted monomers, coagulation, dehydration, drying and packaging. The coagulation process of emulsion polymerization mainly adopts the addition of electrolyte or polymer coagulant to destroy the emulsion and precipitate the colloidal particles. The coagulation process of solution polymerization is mainly hot water coagulation. The colloidal particles precipitated after agglomeration contain a large amount of water and need to be dehydrated and dried.