Material name: Polyethylene terephthalate
Chemical formula: PET
Appearance: Transparent Granules
Polyethylene terephthalate (PET)
Polyethylene terephthalate (PET) is a durable chemical polyester and its use has increased over the last several decades with a wide range of uses, from food and beverage containers to the manufacture of electronic components and as fibers in clothing. Recycled PET bottles are often used to make wool garments as well as plastic bottles. In fact, one of the most common uses of PET in the manufacture of drinking water bottles is that they are regularly found in aquatic enclosures.
Polyethylene terephthalate (PET) is a condensed polymer produced by the esterification of ethylene glycol (EG) with terephthalic acid (TPA) or dimethyl terephthalate (DMT) and has the general formula (OOCC6H5COOCH2CH2) n. Unlike the carbon-carbon bonds in polymers discussed earlier, polyesters are based on carbon-oxygen-carbon bonds, one of which is part of a carbonyl group. Highlights of PET film as a food packaging material include excellent tensile strength, excellent chemical resistance, light weight, tensile strength and stability over a wide range of temperatures (60 to 220 ° C). PET films are mostly used in heat-oriented binary form.