Institute of Polymer and Dye Technology, łódź University of Technology, 90-924 łódź, Poland.
Appl Spectrosc. 2013 Dec;67(12):1437-40. doi: 10.1366/13-07045.
Ceramizable (ceramifiable) silicone rubber-based composites are commonly used for cable insulation. These materials are able to create a protective ceramic layer during fire due to the ceramization process, which occurs at high temperature. When the temperature is increased, the polymer matrix is degraded and filler particles stick together by the fluxing agent, producing a solid, continuous ceramic phase that protects the copper wire from heat and mechanical stress. Despite increasing interest in these materials that has resulted in growing applications in the cable industry, their thermal behavior and ceramization process are still insufficiently described in the literature. In this paper, the thermal behavior of ceramizable silicone rubber-based composites is studied using microcalorimetry and Fourier transform infrared spectroscopy. The analysis of the experimental data made it possible to develop complete information on the mechanism of composite ceramization.
可陶瓷化硅橡胶基复合材料常用于电缆绝缘。这些材料由于陶瓷化过程，在高温下能够形成一层保护性的陶瓷层。当温度升高时，聚合物基质降解，助熔剂使填充颗粒黏结在一起，生成一种固体、连续的陶瓷相，从而使铜丝免受热和机械应力的影响。尽管人们对这些材料越来越感兴趣，并且它们在电缆行业的应用也越来越广泛，但文献中对它们的热行为和陶瓷化过程的描述仍然不够充分。在本文中，使用微量热法和傅里叶变换红外光谱研究了可陶瓷化硅橡胶基复合材料的热行为。对实验数据的分析使得有可能对复合材料陶瓷化的机理形成完整的认识。
