Semi-Crystalline – EP

by / Sunday, 24 August 2014 / Published in

Engineering Plastics (Semi-Crystalline)

PBT – Polybutylene Terephthalate – A semi-crystalline engineered thermoplastic with similar properties and composition to polyethylene terephthalate (PET). PBT is used as an insulator in the electrical and electronics industries. PBT is resistant to solvents, shrinks very little during forming, is mechanically strong, heat-resistant up to 150 °C (or 200 °C with glass-fibre reinforcement) and can be treated with flame retardants to make it noncombustible.

POM – Polyoxymethylene (Acetal) – An engineering thermoplastic providing outstanding wear, long-term fatigue, toughness and creep resistance as well as excellent resistance to moisture, solvents and strong alkalis. Some different manufacturing processes are used to manufacture homopolymer and copolymer versions of POM which exhibit some different properties and performance characteristics.

PA6 – Polyamide (Nylon 6) – When unmodified PA6 is a tough and strong material affording parts with good damping characteristics and high shock resistance even in the dry state and at low temperatures. PA6 is distinguished by particularly high impact resistance and ease of processing. A wide range of re-enforcement, additives and modifiers can be added to significantly change the functional properties of this polymer.

PA66 – Polyamide (Nylon 6.6) – Nylon 6,6 is desirable in many applications due to its outstanding tenacity, elasticity, dye-fastness and high melting point. It is the strongest and most abrasion resistant unreinforced aliphatic nylon with better low temperature toughness than Nylon 6 or acetal.

PEX – Cross-linked Polyethylene – PEX contains cross-linked bonds in the polymer structure, changing the thermoplastic to a thermoset. Crosslinking improves the elevated-temperature properties of the base polymer, provides improved chemical resistance. Low temperature properties are improved along with Impact and tensile strength, scratch resistance, and resistance to brittle fracture.

PVDC – Polyvinylidene Chloride – A homopolymer of vinylidene chloride, exhibiting a low permeability to a wide range of gases and vapors.

UHMWPE – Ultra-High Molecular Weight Polyethylene – A linear polyethylene with a much higher molecular weight than standard PE, which offers outstanding abrasion resistance, superior impact resistance, non-sticking and self-lubricating properties, and excellent mechanical characteristics, even in cryogenic conditions.

PETG – Glycol-modified Polyethylene Terephthalate – Durable material with excellent gloss and clarity, making for very clear products. PETG has good chemical resistance to acids, alkalis and solvents and is BPA and Chlorine Free.