my country’s polyphenylsulfone (PPSU) import dependence is high and there is huge room for domestic substitution.

polyphenylsulfone (ppsu), also known as polyphenylene sulfone resin, is an amorphous thermoplastic engineering plastic formed by the condensation polymerization of bis-aromatic sulfonyl chloride and aromatic rings. because the molecular chain contains a large number of biphenyl groups, polyphenylsulfone has more outstanding heat resistance. at the same time, polyphenylsulfone also has good transparency and hydrolytic stability.…