TITLE:
Silicon-Basing Ceramizable Composites Containing Long Fibers
AUTHORS:
Zbigniew Pędzich, Magdalena Ziąbka, Rafał Anyszka, Dariusz M. Bieliński
KEYWORDS:
Silicone Rubber; Ceramization; Composites; Polyamide Fibers; Aluminosilicate Fibers
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.1 No.5,
November
7,
2013
ABSTRACT: Ceramization is a phenomenon which assures compactness of
polymer-based composites in the case of their thermal degradation caused by open
fire or exposure at high temperatures. This phenomenon is based on preventing
volatiles of thermal decomposition of silicone rubber from evacuation by creation
of ceramic layer. This ceramized structure is composed of mineral filer particles,
connected by fluxing agent—glassy phase. The ceramic barrier created during firing is aimed
to protect copper wire inside the cable from melting, being additionally strong
enough to maintain integrity of electrical circuit. The paper presents experimental
data on mechanical properties of silicone rubber composites strengthened additionally
with long fibers of different types—aluminosilicate and polyamide (Kevlar) ones.
Fibers were introduced into composites in oriented way. Mechanical properties were
investigated taking into account fiber orientation anisotropy. Ceramization process
of composites was described by observation of morphology and strengthen
measurements of samples fired at 1000°C.