Damage effects and mechanisms of proton irradiation on methyl silicone rubber

Details Damage effects and mechanisms of proton irradiation on methyl silicone rubber Damage effects and mechanisms of proton irradiation on methyl silicone rubber

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.540..715z&link_type=abstract

In: Proceedings of the 9th International Symposium on Materials in a Space Environment, 16-20 June 2003, Noordwijk, The Netherla

Computer Science

Space Environment, Materials, Methyl Silicone Rubber, Proton Irradiation, Tensile Strength, Infrared Spectrum, Damage Mechanism

Scientific paper

A study was performed on the damage effects and mechanisms of proton irradiation with 200keV energy to space-grade methyl silicone rubber. The changes in surface morphology, mechanical properties, infrared attenuated total reflection spectrum, mass spectrum and pyrolysis gas chromatography-mass spectrum indicated that, under lower fluence, the proton radiation would induce cross-linking effect, resulting in an increase in tensile strengths and hardness of the methyl silicone rubber. However, under higher proton fluence, the radiation-induced degradation, which decreased the tensile strengths and hardness, became a dominant effect. A macromolecular-network destruction model for the silicone rubber radiated with the protons was proposed.

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