When the material is often subjected to mechanical action such as friction, scraping, and frustration during use, it will cause the surface to wear gradually, so the choice of material wear is very important. TPU plastic raw materials have excellent wear resistance and are more than five times more wear-resistant than natural rubber. It is one of the preferred materials for wear-resistant products.
The tensile strength is up to 70 MPa and the elongation at break can be as high as 1000%.
When the elastomer is applied, the damage caused by the expansion of the crack is called tearing. The tear strength is the ability of the material to resist the tearing effect; in general, the TPU has high tear resistance, tear strength and some commonly used Rubber and plastic are quite excellent.
Many plastic materials are prone to breakage under repeated cyclic stresses. TPU products can maintain excellent fracture resistance under different environments and are one of the best choices for polymer materials.
TPU has good water resistance under turbidity, and no obvious hydrolysis occurs in 1 to 2 years, especially in the polyether series. The polyester series is immersed in 50 ° C water for half a year or 70 ° C for 3 weeks or 100 ° C for 3 to 4 days, it will completely decompose. This is one of the reasons why TPU is suitable as an environmentally friendly material. It is recommended to use the polyether series.
High temperature resistance and oxidation resistance
The general plastic raw materials are easily oxidized in the environment above 70 ° C for a long time, and the TPU has good oxidation resistance; in general, the TPU temperature resistance can reach 120 ° C.