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Study on the radiation degradation of polyether-polyurethane induced by electron beam

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Abstract

Polyether-urethane samples were irradiated at the dose range from 10 to 2000 kGy by 2 MeV electron beams. Volatile species from the polymer degradation were analyzed quantitatively and qualitatively with GC/MS. Thermal properties and micro-phase separation of the samples were examined by TG and the morphology was studied by TEM and SEM. The results show that the irradiated polyether-polyurethane evolves CO2, H2, CH4 and C2H6, etc. The thermal stabilities between the hard and soft segments in the irradiated samples are different. At high doses, the phase separation in the sample is predominant and the hard segment of sample is more stable. The dose rate affects the soft segment of the irradiated sample much more.

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Authors and Affiliations

  1. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, P.O. Box 919-214, Mianyang, 621900, P.R. China

    Huang Wei, Jie Xiong, Xiaojun Chen, Xiaoling Gao, Yunshu Xu & Yibei Fu

Authors
  1. Huang Wei
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  2. Jie Xiong
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  3. Xiaojun Chen
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  4. Xiaoling Gao
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  5. Yunshu Xu
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  6. Yibei Fu
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Correspondence to Huang Wei.

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Wei, H., Xiong, J., Chen, X. et al. Study on the radiation degradation of polyether-polyurethane induced by electron beam. J Radioanal Nucl Chem 274, 525–530 (2007). https://doi.org/10.1007/s10967-006-7023-9

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  • DOI: https://doi.org/10.1007/s10967-006-7023-9

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