Polycyclohexylene dimethylene
Terephthalate (PCT)

Properties and Applications

Poly(cyclohexylenedimethylene terephthalate) (PCT) is a high performance, semi-crystalline thermoplastic polyester produced by polycondensation of cyclohexane dimethanol (CHDM) and terephthalic acid (TPA). Its mechanical properties including flexural, impact and tensile strength (30% GF) are very similar to those of polyethylene terephthalate (PET, 30% GF) whereas its resistance to hydrolysis and heat is superior. It also has a noticeably higher melting point than PET (about 285°C vs. 245°C).

Other important properties include low moisture absorption, excellent electrical properties, good chemical resistance (comparable to PET and PBT) as well as good long-term light and thermal stability. Due to these properties, PCT finds uses in the electronic and automotive industry such as plug connectors, relays, switches, and distribution boxes. In many cases, it can be used as a drop-in replacement for PBT where higher temperature resistance is required.

Manufacturers & Distributors