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Understand the specific composition of TPU materials

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Understand the specific composition of TPU materials

2018-11-01 10:31:39 浏览次数:966


TPU is the abbreviation of Thermoplastic Urethane, and its Chinese name is thermoplastic polyurethane elastomer.


TPU is a polymer material obtained by co-reacting a diisocyanate molecule such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) with a macropolyol or a low molecular polyol (chain extender). Its molecular structure is a rigid block obtained by reacting diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) with a chain extender, and a diisocyanate such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI). The soft segments obtained by the reaction of the molecules with the macropolyol are alternately formed. TPU is a mature and environmentally friendly material with excellent high tension, high tensile strength, toughness and aging resistance.


At present, TPU has been widely used in medical and health, electronic appliances, industry and sports. It has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance and weather resistance which are unmatched by other plastic materials. At the same time, he has many excellent functions such as high water repellency, moisture resistance, cold resistance, antibacterial, mildew proof, warmth, UV resistance and energy release.


The thermoplastic polyurethane elastomer TPU can be divided into two types according to the molecular structure: polyester type and polyether type. According to the processing method, it can be divided into injection molding grade, extrusion grade, blow molding grade and the like.


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