July 10, 2025
Plastics Specialist
PET resin, polyethylene terephthalate, is a linear thermoplastic polymer produced by polycondensation of terephthalic acid and ethylene glycol. It has excellent physical and mechanical properties, such as high strength, good rigidity, impact resistance is outstanding in thermoplastics, but also has good chemical resistance, in addition to a few strong solvents, most of the acids, alkalis, salts have good resistance. In addition, PET resin has good high temperature resistance, long-term use temperature can reach 120 ℃ or so, and excellent electrical insulation properties, light transmission is also more outstanding, these characteristics make it in many areas are widely used.
In the field of packaging, PET resin is one of the main materials for making plastic bottles. Many of the common mineral water bottles, beverage bottles, edible oil bottles, etc. in our daily life are made of PET resin. This is because PET bottles are characterized by light weight, high transparency and good sealing, which can clearly display the products inside the bottles, and at the same time effectively prevent the contents from leaking and deteriorating. Moreover, PET bottles are strong enough to withstand a certain amount of pressure during transportation and storage, and have a high recycling rate, which is in line with the trend of environmental protection. In addition to plastic bottles, PET resin can also be used to make food packaging film, this film has a good barrier, can effectively block oxygen, water vapor, etc., to extend the shelf life of food, commonly used in meat, pastries and other food packaging.
In the textile industry, PET resin is the core raw material for the production of polyester fiber. Polyester fiber has the advantages of high strength, good elasticity, wear-resistant, light-resistant, corrosion-resistant, etc. It is widely used in clothing fabrics, home textile products, industrial fabrics and other fields. Clothing made of polyester fiber is stiff and wrinkle-resistant, not easy to deform, and easy to dry after washing; home textile, polyester sheets, curtains, etc., strong durability, bright colors; industry, polyester fiber can be used to make filter cloth, conveyor belts, etc., to give full play to its high-strength and wear-resistant properties.
In the field of engineering plastics, reinforced PET resin (such as glass fiber reinforced PET) is widely used. By adding glass fibers and other reinforcing materials, PET resin mechanical properties have been significantly improved, strength, rigidity and heat resistance have been greatly improved, can be used for the manufacture of automotive parts, electronic and electrical enclosures and so on. In the automotive industry, reinforced PET can be used for the production of door handles, dashboard components, engine peripheral parts, etc., not only light weight, can realize the car lightweight, but also to meet the use of the mechanical properties of the process requirements; in the field of electronic and electrical appliances, reinforced PET can be used for the production of printers, photocopiers, and other equipment such as shells and internal structural parts, with good dimensional stability and temperature resistance.
In the film field, in addition to food packaging film, PET resin can also be used to make electrical insulation film. This film has excellent electrical insulation properties and high temperature resistance, can be used for electrical equipment such as motors, transformers and other insulating materials, to ensure the safe and stable operation of equipment. In addition, PET film can also be made after stretching treatment stretch PET film, its strength is higher, better toughness, can be used for the production of magnetic tapes, optical discs, such as the base film.
With the continuous development of technology, PET resin applications are still expanding. For example, in the medical field, some special modified PET materials can be used to make medical equipment components, with good biocompatibility; in the construction field, PET resin can be used to make sound insulation materials, thermal insulation materials, etc., to take advantage of its certain barrier properties and mechanical properties. At the same time, PET resin recycling technology is also advancing, after the recovery of PET can be processed through chemical or physical methods, re-used in the production of plastic bottles, fibers and other products, further promoting the recycling of resources.
If you have PET material purchasing needs, please contact us, Ningbo Chaohe Plastic will be happy to provide you with high quality materials and first-class customer service. We are looking forward to cooperating with you and creating a bright future together!
