天然橡胶板是一种常见的工业材料, 而耐温性能是人们关心的一个重要指标.
我们需要了解天然橡胶的基本性能.
作为高弹性体, 天然橡胶在常温下具有优良的弹性和较高的机械强度, 这使得它广泛应用于许多领域. 然而, when the ambient temperature changes, the performance of natural rubber will also be affected. 具体来说, the glass transition temperature of natural rubber is -72°C, which means that it will become hard and brittle below this temperature, losing its original elasticity. In the heated case, natural rubber will gradually soften, start flowing around 130-140°C, and start decomposing around 200°C, and undergo violent decomposition around 270°C. 所以, 在实际应用中, in order to maintain the integrity and function of the material, it is recommended to use the highest temperature of around 100°C.
Click the image above to find out natural rubber sheet
How can we deal with the challenges that natural rubber may face in high temperature environments?
一方面, the thermal resistance of natural rubber can be improved by physical or chemical modification methods. 例如, by adding specific fillers or cross-linking agents to enhance its stability at high temperatures.
另一方面, suitable material combinations can be selected according to the application requirements. 在某些情况下, if natural rubber cannot meet the high temperature requirements, consider using high-temperature-resistant synthetic rubber or other high-performance polymers as an alternative.