Polyphenylene Sulfide (PPS) Resin Process

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Polyphenylene sulfide (PPS) resin, a form of engineering plastic, is comprised of about 30 % sulfur and about 70 % benzene by weight.

Polyphenylene sulfide (PPS) resin is made from sodium sulfide and dichlorobenzene in a polar solvent. The process medium is a suspension containing PPS and sodium chloride. The suspension goes through evaporation to separate the volatile substances.

Vaisala K-PATENTS® Process Refractometer PR-43-GP measures the NaCl concentration at the outlet line of the dissolution tank. NaCl is dissolved in the solution and the PPS resin remains undissolved in the mixture. The refractometer can monitor and control the NaCl dissolved solids concentration without being influenced by the undissolved PPS resin. 

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Polyphenylene Sulfide (PPS) Resin Process

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