Microstructure evolution of silicone rubber-based composites during ceramization in different conditions
Zbigniew Pędzich, Alicja Bukańska, Dariusz M. Bieliński, Rafał Anyszka, Jan Dul, Grzegorz Parys
Quarterly No. 4, 2012 pages 251-255
DOI:
keywords: silicone composites, ceramization, microstructure
abstract The work describes the microstructural changes occurring during the ceramization of silicone rubber-based composite in different conditions. Ceramization is a phenomenon which assures the compactness of polymer-based composites in the case of its thermal degradation caused by open fire or exposure to high temperatures. Polymer-based materials used as wire coatings contain a certain amount of mineral additives. Their type, volume, and grain size distribution are decisive for shaping the microstructure of a ceramized body. Moreover, the ceramization conditions can strongly influence its final microstructure. The total porosity, open porosity, pore size distribution and ceramized body compactness evolve with changes to the degradation temperature of the composites at which they have been studied.