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IJSTR >> Volume 4 - Issue 11, November 2015 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Preparation And Characterization Of Silicon Carbide Foam By Using In-Situ Generated Polyurethane Foam

[Full Text]



Shalini Saxena, Arvind Kumar Saxena



Keywords: Diisocyanates, Polycarbosilane, Polyol, Polyurethane foam, Preceramic foam, Pyrolysis, Silicon Carbide foam.



Abstract: The open cell silicon carbide (SiC) foam was prepared using highly crosslinked hybrid organic- inorganic polymer resin matrix. As inorganic polymer polycarbosilane was taken and organic resin was taken as a mixture of epoxy resin and diisocyanates. The resultant highly crosslinked hybrid resin matrix on heating and subsequently on pyrolysis yielded open cell silicon carbide foam. The hybrid resin matrix was characterized by Fourier transform Infrared Spectroscopy (FT-IR) and thermal properties i.e., Thermogravimetric analysis (TGA) & Differential Scanning Calorimetry (DSC) were also studied. The morphological studies of silicon carbide ceramic foam were carried out using X-ray Spectroscopy (XRD) & Scanning Electron Microscopy (SEM).



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