Is TPU material high temperature resistant?

TPU is thermoplastic polyurethane elastomer, is a kind of polymer material between rubber and plastic, it itself has certain characteristics of high temperature resistance, but its high temperature resistance performance is affected by the specific type and formulation.

1.The high temperature resistance limit of TPU material

Ordinary TPU material is generally used in the long term high temperature range of about 80 ℃, in the short term high temperature range can reach 120 ℃ or so, the normal use of this temperature range will not affect the physical properties of the material itself. Some special formulations of modified TPU materials with better high temperature performance, the high temperature resistance of such materials can reach 130 ℃ or so, and in some cases can even reach 150 ℃ high temperature.

2.TPU material high temperature performance constraints

TPU material high temperature performance depends mainly on the chemical structure of its hard section, the higher the general hardness of the material, the better its heat resistance, after a special formula or add heat-resistant agent of the TPU material temperature limit can even reach a higher level, these additives can be maintained at high temperatures to maintain stability, so as to achieve the effect of enhancing the performance of the heat resistance, TPU material molecular structure and strength is also an important factor affecting its high temperature performance. The molecular structure and strength of TPU material is also an important aspect of its high temperature performance, high toughness of TPU material will generally have a higher high temperature characteristics than low toughness of TPU.

3. What will happen to the performance of TPU materials in a high temperature environment

Temperature is too high will have an adverse effect on the TPU material, high temperature environment will lead to a reduction in its elasticity, tensile reduction, there may also be deformation or cracks. When the temperature exceeds his limit of high temperature resistance, there will be obvious deformation, affecting its normal use, the color will also occur with certain changes, become dark or yellow.

4. TPU materials in high temperature applications

TPU materials are widely used in many products that require high temperature resistance because of its excellent high temperature performance. In the field of electronic products for the protection of circuit boards TPU film, to avoid high temperatures destroy the circuit; in the automotive field for automotive interior parts surface materials, in order to withstand the high temperature of the summer sun; in the field of medical equipment for medical dressings, surgical diaphragms and other products, even in the high temperature sterilization environment can also maintain the stability of physical properties. These areas of application have verified the high temperature resistance of TPU materials.

In short, TPU materials have a certain degree of high temperature resistance, but this performance is also affected by the hardness of the material, additives and other factors, in the actual application, in accordance with the specific needs of the selection of suitable TPU materials, to protect the reliability of the product in a particular environment. At the same time, we should also pay attention to the ambient temperature, to prevent exceeding the material's high temperature limit, to extend the service life of the product.