|Performance items||Test condition||test method||test data||Data unit|
|physical property||hardness||ASTM D2240||90||Shore A|
|ASTM D2240||-||Shore D|
|Mechanical properties||modulus||ASTM D412||7||MPa|
|300% modulus||ASTM D412||12||MPa|
|Tensile strength||ASTM D412||37||MPa|
|tear strength||ASTM D624||100||N/mm|
|Thermal performance||Processing temperature||185-205||℃|
TPU (thermoplastic polyurethanes): thermoplastic elastomer rubber. A plastic material that can soften or change repeatedly under a certain heat, but it can maintain its shape at room temperature It can play a supporting and protective role.
The main features of TPU are:
Wide hardness range: products with different hardness can be obtained by changing the ratio of each reaction component of TPU, and with the increase of hardness, the products still maintain good elasticity and wear resistance.
High mechanical strength: TPU products have outstanding bearing capacity, impact resistance and shock absorption performance.
Outstanding cold resistance: the glass transition temperature of TPU is relatively low, and it still maintains good elasticity, flexibility and other physical properties at minus 35 degrees.
Good processing performance: TPU can be processed by common processing methods of thermoplastic materials, such as injection molding, extrusion, calendering and so on. At the same time, TPU and some polymer materials can be processed together to obtain polymer alloys with complementary properties.
TPU is thermoplastic polyurethane, which can be divided into polyester type and polyether type. It has wide hardness range (60ha-85hd), wear resistance, oil resistance, transparency and good elasticity. It is widely used in the fields of daily necessities, sporting goods, toys, decorative materials and so on. Halogen free flame retardant TPU can also replace soft PVC to meet the environmental protection requirements of more and more fields. TPU has many brands and uneven quality. It's best to go through detailed evaluation and demonstration when choosing TPU, otherwise we can't get the best result of cost performance. TPU has a wide range of hardness, high strength, friction resistance, good toughness, good elasticity, cold resistance, oil resistance, water resistance, aging resistance, climate resistance and other characteristics unmatched by other plastic materials. At the same time, it also has many excellent functions, such as high water resistance, moisture permeability, wind resistance, cold resistance, antibacterial, mildew resistance, heat preservation, UV resistance and energy release. It is widely used in shoe materials, bag materials, sports equipment, medical equipment, automobile industry, packaging products, wire and cable coating materials, hoses, films, coatings, inks, adhesives, melt spun spandex fibers, artificial leather, bonded clothing, gloves, air blowing products, agricultural greenhouse, air transportation and national defense industry.