Polyester

Polyester is a category of polymers that contain the ester functional group in every repeat unit of their main chain.^[1] As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include naturally occurring chemicals, such as in plants and insects, as well as synthetics such as polybutyrate. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing.

Polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties. Cotton-polyester blends can be strong, wrinkle- and tear-resistant, and reduce shrinking. Synthetic fibers using polyester have high water, wind, and environmental resistance compared to plant-derived fibers. They are less fire-resistant and can melt when ignited.^[2]

Liquid crystalline polyesters are among the first industrially used liquid crystal polymers. They are used for their mechanical properties and heat-resistance. These traits are also important in their application as an abradable seal in jet engines.^[3]

^ Köpnick H, Schmidt M, Brügging W, Rüter J, Kaminsky W (June 2000). "Polyesters". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA.
^ Mendelson C (17 May 2005). Home Comforts: The Art and Science of Keeping House. Simon and Schuster. ISBN 9780743272865.
^ "Thermal Spray Abradable Coatings". www.gordonengland.co.uk. Retrieved 12 December 2018.

[:0-1] Köpnick H, Schmidt M, Brügging W, Rüter J, Kaminsky W (June 2000). "Polyesters". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA.

[2] Mendelson C (17 May 2005). Home Comforts: The Art and Science of Keeping House. Simon and Schuster. ISBN 9780743272865.

[3] "Thermal Spray Abradable Coatings". www.gordonengland.co.uk. Retrieved 12 December 2018.

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