What Material Is TPU?

TPU is called thermoplastic polyurethane elastomer rubber, which is a kind of elastomer that can be plasticized by heating and dissolved by solvent.

Mainly divided into polyester type and polyether type, which are white random spherical or columnar particles.

TPU has excellent properties of high tension, high tensile force, toughness and aging resistance, and is a mature environmental protection material. At present, TPU has been widely used in medical and health, electronic appliances, industry and sports, etc. It has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance and weather resistance that other plastic materials cannot match. At the same time, he has many excellent functions such as high waterproof and moisture permeability, windproof, coldproof, antibacterial, mildewproof, warm, anti-ultraviolet and energy release. Thermoplastic polyurethane elastomer TPU can be divided into polyester type and polyether type according to molecular structure, and can be divided into injection molding grade, extrusion grade, blow molding grade, etc. according to the processing method.

Features: 1. High wear resistance: Taber wear index comparison between TPU and other materials

(Abrasion conditions: CS17 wheel, 1000g/wheel, 5000r/m 23℃)

Material Wear (mg) Material Wear (mg)

TPU 0.5-3.5 Natural rubber 146

Nylon 610 16 Impact Resistant PVC 160

Mylar 18 Styrene Butadiene Rubber 177

Nylon 11 24 Plasticized PVC 187

HDPE 29 Butyl Rubber 205

PF 42 ABS 275

Butadiene rubber 44 CBR 280

Nylon 66 49 PS 324

LDPE 70 Nylon 6 366

2. Wide range of hardness: By changing the ratio of each reaction component of TPU, products with different hardness can be obtained, and with the increase of hardness, the products still maintain good elasticity.

3. 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.

4. Good processing performance: TPU can be processed by common processing methods of thermoplastic materials, such as injection, extrusion, calendering and so on. At the same time, the co-processing of TPU and some polymer materials can obtain polymer alloys with complementary properties.

5. Oil, water and mold resistant.

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