![]() ![]() ![]() However, the drying period will depend on the moisture content of the virgin material.Īt other times, the virgin material may be transparent. Have the virgin material dried at a temperature range of 150☌ to 170☌ for a period of 4-6 hours. Here, you need either a standard hopper or an insulted hopper dryer. PET Drying – sometimes the virgin material/polymer is milky white, and in this case, you need to have it dried. You can store the polymer in silos and release it depending on the quantity of the preform you are producing. You need to have the polymer transported and stored in a place, say, your company, where you are going to use it. Storage – you need to understand that the PET Preform is produced from a virgin material (Polymer) as a raw material. This can be done by using a desiccant or drying before processing.If you wish to understand a stepwise process of PET production, here is the guide So before plastic is processed, moisture must be removed from the plastic. When wet, during PET plastic processing, hydrolysis takes place at the contact surface between water and PET, which reduces the molecular weight of PET (or viscosity) and its physical and mechanical properties. Viscosity of several forms: - 0.6 dl / g: fibrous - 0.65 dl / g: thin film - 0.76-0.84 dl / g: bottles - 0.85 dl / g: rope type. The length of a polymer can be uniformly adjusted through polymerization. The longer the polymer circuit length, the higher the solidity, the higher the viscosity. The viscosity of the substance deciliter / gram (dl / g) depends on the polymer circuit length. One of the important properties of PET is its viscosity. ![]() PET was discovered in 1941 by the Calico Printer ’Association of Manchester. Sails are usually made of Dacron, a type of PET fiber, which is light in color, lightweight rotating instruments are usually made of nylon. PET is a semi-crystalline form, traded under the trade names of Rynite, Arnite, Hostadur & Crastin. PET bottles are a very good container and are widely used to store liquid beverages. PET is often encapsulated with aluminum to reduce the magnetic conductivity, making it reflective and opaque. PET can be made into thin films (commonly known as mylar). PET is naturally colored with high transparency. PET bottles contain drinks such as alcohol and other types, durable and strong impact resistance. It forms a very good air and moisture barrier. PET can be wrapped with a hard shell or hard shell wrapped items, determined by the thickness and amount of plastic needed. PET Preform is produced under the trade names Arnite, Impet and Rynite, Ertalyte, Hostaphan, Melinex and Mylar films, and Dacron, Diolen, Terylene and Trevira fibers. In the field of textiles, PET is applied as polyester combined with cotton. Most of the PET industry in the world is synthetic fibers (accounting for 60%) providing about 30% of the world's demand. The polymerization is carried out by a discontinued polymerization of the monomer (immediately after esterification or transesterification) with ethylene glycol as the product (ethylene glycol is recovered in production). PET's monomer can be synthesized by the esterification reaction between terepthalic acid and ethylene glycol to produce water, or transesterification reaction between ethylene glycol and dimethyl terepthalate. The characteristics of PET are determined by the heat treatment process, it can exist both amorphous (transparent) and crystalline (opaque white). Spraying to shape and often combined with fiberglass in industry. Polyethylene terephthalate (called PET, PETEor PETP or PET-P) is a thermoplastic, belongs to the Polyester plastic and is used in synthetic fibers, beverage containers, food and other pressable liquids. ![]()
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