The development of my country’s PEN industry is relatively backward. It is expected that large-scale production of PEN products will not be achieved until ten years later.

Polyethylene naphthalate (PEN) is a special engineering rubber material with the advantages of ultraviolet resistance, high gas barrier capability, corrosion resistance, physical and mechanical properties, etc. PEN is a product produced by the polycondensation of NDC or NDA and ethylene glycol (EG). The performance of rubber PET is better and has a wider range of…