Those who like to buy mobile phone cases should know what a tpu is. In fact, this material is often used as home textiles such as bed sheets, shower curtains, tablecloths, apron and so on. tpu can be used not only in home textiles, but also in medicine, national defense, industry and other fields. Let's take a closer look with the editor.
What is tpu material?
TPU is a thermoplastic polyurethane elastomer rubber. TPU is a polymer formed by chemical reaction and polymerization of diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI), bio-macromolecule polyol, and chain extender. It is a kind of plastic material that can be constantly softened or changed at a specific temperature, but it can maintain the shape unchanged at normal temperature and can play a supporting and protecting effect. It is widely used in shoe midsoles.
What are the characteristics of tpu?
1. Wide coverage of strength: According to the formulation of the chemical reaction components of the TPU, products with different strength can be obtained, and with the increase of strength, the products still maintain stable ductility.
2. High mechanical strength: the bearing capacity, impact resistance and shock absorption characteristics of tpu crafts are outstanding.
3. Good production and processing characteristics: tpu can choose ordinary thermoplastic production and processing methods for production and processing, such as injection, extrusion, calendering, and so on. , TPU can be produced and processed together with some polymers to obtain polymer hard alloys with complementary properties.
4. Significant cold resistance: The glass transition temperature of tpu is relatively low, and it still maintains stable ductility, flexibility and other physical properties at a temperature below 35 degrees.
5. Resistant to oil, moisture and mold.
6. High abrasion resistance: It can be seen from the comparison of tpu and Taber abrasion coefficient of other materials.
7. Strong reusability.