Mechanical and Ablative Properties of Polyacrylonitrile(PAN)/RTV Silicone Internal Insulating Composites

Abstract:

The polyacrylonitrile short fibers/ room temperature vulcanizing silicone rubber (PAN/RTV silicone) composites were prepared by mechanical mixing method and vulcanization at room temperature for 7 days as internal insulator. The effects of the content of fiber on the mechanical and ablative performances for the composites were investigated. The results show that with increasing content of PAN fiber filled, the tensile strength increases, the break elongation decreases, and the ablation rate(Rt) of PAN/silicone composites decreases rapidly at first, then increases. When PAN fiber content is 10phr, the ablation rate(Rt) is 0.06mm/s.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 403-406
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.403
• Online since: November 2011
• Authors: Dong Li, Hong Xia Chen, Zhu Chen, Yang Li, Shu Xin Wu, Ji Gui Wang
• Keywords: Ablative Property, Composite Material, Mechanical Property, PAN Fiber, Silicone

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