TPR material (Thermo-Plastic-Rubber material) is a thermoplastic rubber material. It is a type of thermoplastic soft rubber that has rubber elasticity and does not require vulcanization, and can be directly processed (such as injection molding, extrusion, blow molding, etc.).
TPR material is based on thermoplastic styrene-butadiene rubber (such as SBS, SEBS) as the basic raw material, adding resin (such as PP, PS), fillers, plasticizers and other functional additives blended modified materials.
TPR has excellent resilience and good abrasion resistance, slip resistance and shock absorption performance. TPR material is superior to rubber in softness and comfort, but its tensile strength, fatigue resistance and mechanical properties are not as good as vulcanized rubber.
The operating temperature range is -45 ~ 90 ℃. Generally speaking, the TPR material is based on the SBS substrate, and its chemical properties are as follows: weather resistance, aging resistance, temperature resistance 70 ~ 75 ℃. As the material, the modified material of the SEBS substrate can be selected.
Hardness characteristics. TPR materials can be adjusted in hardness from 5 to 100 degrees in Shore hardness. Modified materials based on SEBS can be adjusted to lower hardness.
Processing characteristics, TPR materials have good adhesion to certain glues, inks, etc., and have good oil-jet screen printing processability.
TPR materials are widely used in daily products, adult products, hardware tools, luggage wheels, sports equipment, toy products, auto parts, medical products, wires and cables, electronic appliances, communication instruments and footwear materials, etc. Among them, the shoe material and toy industries are mainly the application areas of TPR for SBS substrates. Modified materials based on SEBS are mainly used for aging resistance, weather resistance, high physical tensile strength requirements, and low material hardness For products with a Shore hardness of 5 degrees).
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