Polybutylene terephthalate

Polybutylene terephthalate Prices, markets & analysis

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Polybutylene Terephthalate Overview Transcript


Polyacetal or POM and polybutylene terephthalate also known as PBT are covered under the engineering plastics umbrella.


POM is a crystalline plastic often used for technical applications due to its strength, ductility and good machineability. Its properties make it suitable for click connections, for example, with bicycle light holders. The material is known for its stiffness, strength and hardness up to 120 degrees Celsius, and is as elastic as many metals. It is wear-resistant and has a very low friction coefficient.


PBT is a semi-crystalline white or off-white polyester similar in composition and properties to polyethylene terephthalate, though it has slightly lower strength and stiffness. PBT is softer, but it has higher impact strength and very similar chemical resistance. It is usually preferred for industrial-scale moulding because it has quicker crystallisation. It is widely used in electronic, electrical communication fibre optic and automotive industry.


The cost of feedstock methanol influences the POM price. The PBT price is highly influenced by the raw material costs of dimethyl terephthalate and butane diol.

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