TPU Chinese name: hot plasticity polyurethane TPU hot plasticity TPU elastomer of plastic raw materials

Including TPU plastic raw materials is by NCO functionality, POLYOL, MDI and contain OH functionality. 4 bg, made by mixing and extruding, with good elasticity, good physical properties, and all kinds of mechanical strength, therefore, widely used in injection, extruding, rolling and dissolved into solution type resin processing methods, such as for plastic processing industry often use plastic material, it made the product covers the range of industrial applications and necessities. The dosage of the thermoplastic PU elastomer is continuously growing, for plastic processing industry create a low cost and high value added of industry a new opportunity. Because of its superior performance and environmental protection concept is becoming more and more get the welcome of people. TPU can be PVC alternatives. But TPU possess the advantages of, PVC. TPU not only has excellent high tension, the characteristics of high strength, toughness and resistance to aging, and is a kind of mature environmental protection material. Features, TPU wear-resisting performance when the material of plastic raw materials in use process is often affected by friction, blow grind, grind down, such as mechanical action, will cause the surface gradually wear, so it is important to the choice of material abrasion resistance. TPU wear-resisting performance of plastic raw materials, natural rubber five times more wear-resisting, is one of the preferred material wear-resisting products. 2, the tensile properties of TPU plastics raw materials tensile strength up to 70 mpa, elongation at break can be as high as 000%. 3, TPU avulsion elastomer in the application of plastic raw materials due to destruction of tears to expand and make it known as when tearing and tear strength is the material's ability to fight tear effect; In general TPU has high tearing resistance, tear strength compared with some commonly used rubber plastic is very good. 4, TPU inflectional performance a lot of plastic material of plastic raw materials under repeated cyclic stress is prone to rupture, TPU products in different environment can keep excellent resistance to inflectional features, as one of best choice of polymer materials. 5, TPU hydrolysis resistance of plastic raw materials TPU in turbid water resistant performance is good, not apparent hydrolysis, ~ 2 years, especially of a series of polyether is better. Polyester series in 50 ℃ water soak for half a year or 70 ℃ for 3 weeks or 0 ℃ for 3 ~ 4 days, can complete decomposition, this is one of the reasons for the TPU for environmental protection material, the products need to frequent contact with water, polyether series is recommended to be used. 6, TPU plastic materials resistance to high temperature and oxidation resistance of plastic raw materials under the environment of above 70 ℃ for a long time easy oxidation, TPU good antioxidant capacity; In general TPU temperature resistance of 20 ℃. 7, TPU plastic raw material oil resistant and drug resistance of TPU as a kind of strong polar polymer materials, and nonpolar mineral oil affinity is small, the fuel oil ( Such as kerosene, gasoline) And the machine oil ( Such as hydraulic oil, engine oil, lubricating oil, etc. ) Almost no erosion; Among them, the TPU products and with polyester series products had better oil resistance; TPU film and sheet for oil volume change is small, tensile strength and even higher than the original initial value; If it is important to note in the mineral oil contains a small amount of water, will be different degree of negative influence on film properties. 8, TPU plastic raw material with good low temperature resistance, low temperature properties of TPU can achieve - usually 50 ℃, can replace general PVC cannot be applied due to the low temperature embrittlement of various fields, especially suitable for use in frigid zone related types of products. 9, TPU plastic raw material gas tightness TPU is very easy to use high frequency or hot pressing to welding, so widely used on the inflatable products. Coefficient of gas is refers to under certain temperature and pressure, area of the rate of gas through the sample regulation, of the same material with different gas transmittance is sometimes very different. In general, air tightness is better than polyether series polyester series products. 0, TPU plastic raw material with properties of TPU biomedical has good biocompatibility, non-toxic, no allergic reaction, no local irritation, no pyrogen, therefore widely used in medical and sports, health and other related products, to protect equipment. ( ]