ABSTRACT Polybutylene Terephthalate (PBT) is a type of synthetic plastic that is nonbidegradable or cannot be degraded by microorganisms. Polybutylene Terephthalate (PBT) is urgently needed as a raw material for the manufacture of electronics, military, shipping, medical devices to household appliances. The need for PBT increases along with the increase in the capacity of plastic food and …