TPEE (thermoplastic polyester elastomer) has excellent high temperature resistance, low temperature flexibility, bending resistance, and insulation properties, making it the preferred material for wires and cables. It also has good extrusion processing performance and can be extruded at higher speeds compared to other products. At the same time, its size is easy to control. Higher production capacity benefits can be obtained.
Performance advantages of TPEE materials
1, Heat resistance: TPEE has excellent heat resistance, and the higher the hardness, the better the heat resistance; TPEE does not lose weight when heated continuously for 10 hours at 110-140 ℃, and only loses 0.05% and 0.1% weight when heated for 10 hours at 160 ℃ and 180 ℃, respectively. Therefore, the use temperature of TPEE is very high, and the short-term use temperature is even higher. It can adapt to the baking temperature on the automotive production line (150-160 ℃), and its mechanical performance loss is small at high and low temperatures. TPEE is used above 120 ℃, and its tensile strength is much higher than TPU. In addition, TPEE has excellent low-temperature resistance. The brittle point of TPEE is below -70 ℃ and the lower the hardness, the better the cold resistance. Most TPEEs can be used for a long time at -40 ℃. Due to its balanced performance at high and low temperatures, TPEE has a very wide operating temperature range and can be used between -70 and 200 ℃.
2, Oil resistance: TPEE has excellent oil resistance and can withstand most polar liquid chemical media (such as acids, bases, and amine diols) at room temperature. However, its effect on halogenated hydrocarbons (except for Freon) and phenols is relatively poor, and its chemical resistance increases with its hardness. TPEE has good anti swelling and anti permeability properties for most organic solvents, fuels, and gases
3： High strength: TPEE has a wide hardness range, which can vary from Shore 35D to 80D. Its structural strength is 2-6 times that of vulcanized rubber,
It has advantages such as wear resistance, flexural resistance, and oil resistance. The relative density is about 1.2, the mechanical strength is good, the tensile strength is greater than 30Mpa, the elasticity is 3-6 times that of engineering plastics, and the bending strength, tensile strength, and tear strength are 6-12 times, 2-6 times, and 2-10 times that of natural rubber, respectively. At low temperatures, the elasticity recovery is good, and the low-temperature notch impact strength is even better than TPU and PA11.