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[Chemical Knowledge]：Analysis of the composition and characteristics of PET materials

Read： 1945 Time：16months ago Source：Transform the World with Simplicity

PET material refers to the polyester plastic material, known as polyethylene terephthalate (Polyethylene terephthalate), often referred to as PET. Due to its excellent physical properties and chemical stability, PET is widely used in food packaging, fiber, medical supplies and other fields. The composition of

PET materials mainly includes terephthalic acid (PTA, 50% ~ 60%), ethylene glycol (EG, 40% ~ 50%) and trace additives. Among them, PTA and EG are the main raw materials of polyester materials, and they form PET materials through polymerization.

PET material has excellent physical properties. It is a semi-crystalline polymer with high strength, hardness, heat resistance and wear resistance. At the same time, PET material also has good transparency, corrosion resistance and toughness, air tightness and barrier properties are also very good. Therefore, PET materials are often used in the manufacture of various food packaging, medical supplies and fibers.

PET materials have a wide range of applications. It is an excellent food packaging material, used in bottle caps, transparent bottles, beverage bottles, etc. Because the PET material is transparent, it can clearly display its internal substances, so that consumers are more assured. PET fiber has good elasticity and corrosion resistance, and is commonly used in the manufacture of various clothing, fabrics and furniture. In addition, PET materials are also widely used in the medical field, such as the manufacture of infusion bottles, various medical devices and so on.

PET material occupies an important position in various industries due to its excellent physical properties and wide application fields. The author hopes that through this article, readers can have a more comprehensive understanding of the composition, physical properties and application fields of PET materials, so as to better apply PET materials and improve production efficiency and product quality.

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