Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2002, Vol. 13 ›› Issue (2): 110

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Properties of radicals created by γ-ray irradiation of silk fabrics

LIU Rui-Qin, XIE Lei-Dong, TU Tie-Chen, ZU Jian-Hua, SHENG Kang-Long   

  1. Shanghat Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800
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LIU Rui-Qin, XIE Lei-Dong, TU Tie-Chen, ZU Jian-Hua, SHENG Kang-Long. Properties of radicals created by γ-ray irradiation of silk fabrics.Nuclear Science and Techniques, 2002, 13(2): 110

Abstract: The properties of radicals from γ-ray irradiated silk fabrics were studied by clectron spin resonance method (BSR). The ESR spectra of silk fabries irradiated in Nz showed a doublet at room temperature, The doublet became a singlet at g=2.0057 after placing the sample in air for 24 hours. This can be explained by formation of peroxide radicals, The radical concentration of the irradiated silk fabric and the decay rate of radicals are significantly affected by irradiation conditions, which include Ube absorbed dose, atmosphere, and water content of the silk fabric samples. Hawever, 0 dose rate effect on the radical concentration was observed. The results are of help in our practice of property modification of silk products by radiation graft copolymerization

Key words: Silk fabric, γ-ray irradiation, ESR