TPU is mainly used in those industries?

TPU is Thermoplastic Urethane for short, the Chinese name for thermoplastic polyurethane elastomers, TPU is made of diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI) and macromolecular polyols, chain extender *** with the reaction polymerization of polymer materials. Its molecular structure is composed of rigid blocks obtained by the reaction of diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI) and chain extender, and flexible chains obtained by the reaction of diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI) and macromolecular polyol alternately.TPU is a mature and environmentally friendly material with excellent high tension, high tensile strength, toughness and aging resistance. TPU is a mature and environmentally friendly material. At present, TPU has been widely used in medical and health care, electronic and electrical appliances, industry and sports, etc. It has other plastic materials can not be compared with the high strength, good toughness, wear-resistant, cold-resistant, oil-resistant, water-resistant, aging-resistant, weather-resistant and other characteristics, at the same time, he has a high degree of waterproofness and moisture permeability, windbreaks, cold, anti-bacterial, mildew, warmth, UV resistance and energy release and many other excellent features. First, thermoplastic polyurethane elastomer TPU can be divided into polyester type and polyether type according to the molecular structure of the two, according to the processing method can be divided into injection molding grade, extrusion grade, blow molding grade. The main characteristics of TPU are: 1. High abrasion resistance: TPU and other materials Taber Abrasion Index Comparison (Abrasion conditions: CS17 wheel, 1000g/wheel, 5000r/m 23 ℃) Material Abrasion (mg) Material Abrasion (mg) TPU 0.5-3.5 Natural Rubber 146 Nylon 610 16 Impact Resistant PVC 160 Polyester Films 18 Styrene-Butadiene Rubber 177 Nylon 11 24 Plasticized PVC 187 HDPE 29 Butyl rubber 205 PF 42 ABS 275 Butyl hydroxy rubber 44 CBR 280 Nylon 66 49 PS 324 LDPE 70 Nylon 6 366 2. Wide range of hardness: by changing the ratio of the reaction components of TPU, different hardnesses of the products can be obtained, and with the increase of the hardness, the products still maintain good Elasticity. 3. High mechanical strength: TPU products have outstanding load-bearing capacity, impact resistance and shock absorption. Outstanding cold resistance: TPU's glass transition temperature is relatively low, at -35 degrees Celsius still maintains good elasticity, flexibility and other physical properties. 4. Good processing performance: TPU can be processed by common thermoplastic material processing methods, such as injection, extrusion, calendering and so on. At the same time, TPU and some polymer materials **** with the processing of polymer alloys can be obtained with complementary properties. 5. Resistant to oil, water and mold. 6. 6. Good recyclability. Second, a variety of TPU molded products: automotive parts ball coupling; dust cover; pedal brake; door lock pin; bushings spring bushings; bearings; anti-vibration parts; interior and exterior decorative parts; non-slip chain, etc. Mechanical-industrial parts Various gears; seals; anti-vibration parts; take the mold needle; bushings; bearings cover; connectors; rubber sieve; printing rollers, etc. Footwear Softball shoes, baseball shoes, golf shoes, soccer shoes Sole & Forefoot Ladies' Heel; Ski Boots; Safety Boots, etc. Others Self-positioning Wheels; Handles; Straps, etc. Tubing-Hoses High Pressure Hoses; Medical Hoses; Hydraulic Hoses; Pneumatic Hoses; Fuel Hoses; Coated Hoses Conveyor Hoses; Fire Hoses, etc. Films-Sheets Rotary Belts; Air Cushions; Diaphragms; Keyboard Boards; Laminated Fabrics, etc. Wire-Cables Power Communication Cables; Computer Wiring; Automotive Wiring; Exploration Cables, etc. Others Various Looped Tubes and Pipes; Circular belt; V-belt; synchronous belt; non-slip belt, etc. Calendering rotary belt; flexible tanks, tanks; film composite sheet, etc. Blow molding various vehicle boxes; a variety of containers Blow film Ultra-thin, wide film (medical, sanitary products) Solvent fusion material; adhesive; artificial leather, synthetic leather, rope, wire, gloves, etc. coatings Third, TPU is mainly divided into the following categories by application 1. Shoe materials TPU is used for shoe materials mainly due to its excellent elasticity and abrasion resistance. Excellent elasticity and abrasion resistance. TPU-containing footwear products are much more comfortable to wear than ordinary footwear products, therefore, it is more widely used in high-grade footwear products, especially in some sports shoes and casual shoes. 2. Film TPU is increasingly popular because of its superior performance and environmental protection concept. At present, wherever the use of PVC, TPU can become a substitute for PVC, TPU film can not only be laminated with various fabrics, but also vacuum thermoforming method to produce clear contours, dimensional stability of the product. With the continuous improvement of domestic environmental protection awareness, the application of TPU is also more and more extensive. One of the faster increasing areas: shoe upper lining, thermal underwear, transparent underwear, transparent straps, elastic bands and medical breathable tape. 3. Adhesive TPU adhesive belongs to a kind of polyurethane adhesive. The use of polyurethane adhesive in Europe and the United States has been quite common, especially in the use of footwear adhesive, almost using polyurethane adhesive. The use of TPU adhesive in our country is to dissolve TPU, after processing to obtain polyurethane adhesive. In the use of TPU adhesive, mainly in Guangdong, Fujian, Zhejiang, Shanghai, four major regions. 4. Hose Because TPU hose has soft, good tensile strength, impact strength resistance to high and low temperatures, so in China TPU hose is widely used as aircraft, tanks, automobiles, motorcycles, machine tools and other machinery and equipment such as gas and oil hoses. The main TPU hose manufacturing enterprises are concentrated in Guangdong, Zhejiang, Jiangsu, Shandong, Hebei and other places. 5. Electric Wire TPU provides tear resistance, abrasion resistance and bending characteristics, high and low temperature resistance is the key to the performance of the cable. Therefore, in the Chinese market, higher cables such as control cables and power cables with TPU, used to protect the complex design of the cable coating material, the use is also increasingly widespread. 6. Roller Polyurethane elastomer with its high mechanical strength, excellent abrasion resistance, excellent oil resistance, acid and alkali resistance, outstanding resistance to compression and make it in the roller has a large number of applications. Domestic rollers are mainly the following: industrial rollers, household rollers, sports equipment wheels, medical equipment wheels, toy wheels. 7. Plastic modification can be used for PA, ABS plasticizing, but the cost is higher 8. Ink The main advantages of TPU ink are shown in: excellent adhesion, low viscosity, good resistance to flexing, excellent abrasion resistance, high gloss, weather resistance, can withstand any sun exposure including UV irradiation, in a variety of applications are showing excellent toughness and durability. Aromatic and aliphatic TPU inks can be used in a variety of climatic and environmental conditions, the product has a stable and outstanding performance. TPU ink has a glossy and smooth appearance, good opacity and alcohol resistance, strong adhesion, etc. It is mainly applied to the surface decoration of TPU and other plastics. Such as cell phones, laptops, shoes, car leather chairs, sofas, senior leather goods, handbags, inflatable entertainment TPU products, umbrellas, raincoats, etc. TPU ink is used on metal, glass, poor adhesion, easy to drop paint.