PET is an abbreviation for polyethylene terephthalate - it is the chemical name for polyester. PET is produced by a transesterification reaction in which ethylene glycol and terephthalic acid combine to form a polymer chain under low vacuum pressure and high temperature. It is a thermoplastic polymer resin of the polyester family.
This polymer is very stable, tough and inert. PET is highly resistant to most chemical or biological reactions with other substances, which is a major feature of PET, making it safe for use in almost all applications. Pet Bottle Preform are used in a variety of applications, not only for convenient size water bottles, but also for packaging food and beverages. The names of these plastics are very similar to the acronyms, but they have different properties and chemical structures.
PET - Preform, PET - Rohling, PETTLING
PET - Prefabricated parts, PET - Rohling, Petling
Eliminate myths and misunderstandings about pets
There are many misunderstandings about PET that lead to absurd rumors and false assumptions. First, PET does not contain BPA. BPA is an abbreviation for bisphenol a, a compound for making polycarbonate. PET does not contain BPA and has never been included.
PET does not contain phthalates (ie phthalate plasticizers or phthalates) and PET does not contain phthalates. Plasticizer phthalates are sometimes used to soften other types of plastics and are considered by some to be potential endocrine disruptors, although this has not been proven. The confusion seems to come from the chemical name of PET, polyethylene terephthalate. Despite the suffix, PET is not a plasticizer phthalate. Phthalates are low molecular weight monoesters made from phthalic acid. PET is a high molecular weight polyester made from terephthalic acid. They are completely different chemicals.
About aldehyde
PET bottles contain traces of acetaldehyde, and to a lesser extent, other aldehydes are inevitable and they are by-products of acetaldehyde. In the modern manufacturing process of the PET industry, various methods are used to minimize the formation of aldehydes.
Acetaldehyde is a naturally occurring substance found in many foods, especially mature fruits, including apples, grapes and citrus fruits. It is also a natural ingredient in butter, olives, frozen vegetables and cheese, which is formed in the body when certain foods are digested.
The small amount of aldehydes found in PET or PET-packaged articles is much lower than the typical levels in these foods or humans and does not pose a health hazard. The main problem with trace acetaldehyde in PET bottled beverages is the taste. People with very developed sense of smell rarely perceive a subtle fruity taste in bottled water.
Jilian Plastics produces high-quality 5-Gallon Pet Preform, as well as some plastic bottles and molds of other specifications, as well as manufacturing equipment and machines to meet the needs of customers.