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| Thermoplastic elastomer sheet production line |
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Source：admin Popularity：4539 Release time：2019-03-17
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Thermoplastic Elastomer (TPE), Polyurethane (PU), Thermoplastic Polyurethane (TPU) Polyurethane is a newly developed soft and tough protective material. The material has good toughness, strength, smash resistance, chemical resistance and shock resistance. It can maintain softness in the range of -550C ~ +900C. It also has good radiation resistance and is suitable for sealing. Wear resistance is four times better than polyethylene and polyvinyl chloride. The raw materials of the PU elastomer are polyisocyanate in diisocyanate; polyester and polyether; polyester polyol is used in the manufacture of tear strength, load bearing capacity, heat resistance, chemical resistance and ultraviolet radiation resistance. PU material with high performance requirements. The polyether polyol can make the material have better low temperature, hydrolysis resistance and resistance to biological. Thermoplastic polyurethane: The term "elastomer" refers to a polymer material having a glass transition temperature lower than the chamber temperature, an elongation at break of >50%, and a good recovery after removal of the external force. Polyurethane elastomers are a special class of elastomers. Polyurethane elastomers have a wide range of hardness and a wide range of properties, so polyurethane elastomers are a class of polymer materials in rubber and plastics. It can be heated and plasticized. There is no or little cross-linking in chemical structure. Its molecules are basically linear, but there is a certain physical cross-linking. This type of polyurethane is called TPU. The main characteristics of TPU are: wide range of hardness: by changing the ratio of the reaction components of TPU, products with different hardness can be obtained, and with the increase of hardness, the product still maintains good elasticity and wear resistance. . High mechanical strength: TPU products have outstanding bearing capacity, impact resistance and shock absorption performance. The thermoplastic elastomer sheet production line has outstanding cold resistance: TPU has a relatively low glass transition temperature and maintains good elasticity, flexibility and other physical properties at minus 35 degrees. Good processing performance: TPU can be processed by common thermoplastic processing methods such as injection molding, extrusion, calendering and the like. At the same time, TPU can be processed together with certain polymer materials to obtain polymer alloys with complementary properties.
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