Semi-aromatic polyamide (PPA) has broad application prospects and the production strength of Chinese enterprises is continuing to improve.

Semi-aromatic polyamide, also known as high-temperature nylon, referred to as PPA, refers to an engineering plastic formed by the condensation polymerization of aliphatic diamines and diacids and diacids and diamines containing benzene rings. Semi-aromatic polyamide has excellent heat resistance, creep resistance, dimensional stability, mechanical properties, fatigue resistance, aging resistance, electrical insulation properties, corrosion resistance, machining…