Thermoplastic polyurethane elastomer rubber
tpu is called thermoplastic polyurethane elastomer rubber, mainly divided into polyester type and polyether type, it has a wide range of hardness (60HA-85HD), abrasion resistance, oil resistance, transparency, good elasticity, in daily necessities, sporting goods, toys, decorative materials, etc. are widely used, halogen-free flame-retardant tpu can also be used in place of soft PVC to Meet the environmental requirements of more and more areas.
The main characteristics of thermoplastic polyurethane elastomer rubber (tpu) are: wide range of hardness: by changing the ratio of tpu reaction components, you can get different hardness of the product, and with the increase in hardness, the product still maintains good elasticity and wear resistance. High mechanical strength: tpu products have outstanding load-bearing capacity, impact resistance and shock absorption performance.
Excellent cold resistance: tpu's glass transition temperature is relatively low, at minus 35 degrees Celsius still maintains good elasticity, flexibility and other physical properties. Good processing performance: tpu can be processed using common thermoplastic material processing methods, such as injection molding, extrusion, calendering and so on. At the same time, tpu and some polymer materials **** with the processing can get the performance of complementary polymer alloys, oil resistance, water resistance, mold resistance, good recycling.
Expanded Information:
Applications p>Application classification
1, shoe materials
TPU is used in shoe materials mainly due to its excellent elasticity and abrasion resistance. The wearing comfort of TPU-containing footwear is much better than that of ordinary footwear, therefore, it is more widely used in high-grade footwear, especially in some sports shoes and casual shoes.
2, film
TPU because of its superior performance and environmental protection concept is increasingly popular. At present, wherever the use of PVC, TPU can become a substitute for PVC. TPU film can not only be laminated with a variety of 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 increase in the field: shoe lining, thermal underwear, transparent underwear, transparent straps, elastic bands and medical breathable tape.
3, adhesive
TPU adhesive belongs to a 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 the TPU hose has a soft, good tensile strength, impact strength high and low temperature resistance, so in China TPU hose is widely used as airplanes, 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, wire
TPU provides tear resistance, abrasion resistance and bending characteristics, high and low temperature resistance is the key to the performance of the cable. So in the Chinese market, higher cables such as control cables and power cables with TPU, used to protect the design of complex 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 compression resistance 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
TPU ink main advantages are: excellent adhesion, low viscosity, good resistance to flexing, excellent abrasion resistance, high gloss, weather resistance, can withstand any sunlight exposure, including UV radiation, in a variety of applications have shown excellent toughness and durability. Aromatic and aliphatic inks made of TPU 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 and other characteristics, mainly for TPU and other plastic surface decoration. 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.