Effects of -ray irradiation on a cyanate ester/epoxy resin

Idesaki, Akira; Uechi, Hiroki*; Hakura, Yoshihiko*; Kishi, Hajime*

Effects of -ray irradiation on a cyanate ester/epoxy resin composed of dicyanate ester of bisphenol A (DCBA) and diglycidyl ether of bisphenol A (DGEBA) was investigated by changes in physicochemical and mechanical properties after the -ray irradiation with dose of 100 MGy as maximum at ambient temperature under vacuum. After the irradiation, gases of hydrogen, carbon monoxide and carbon dioxide were evolved, glass transition temperature decreased, and flexural strength also decreased. It was concluded that ether linkages bonded to cyanurate, isocyanurate and oxazolidinone structures are mainly decomposed by the irradiation. After 100 MGy irradiation, the flexural strength of DCBA/DGEBA was maintained more than 170 MPa which is 90% of initial value of 195 MPa.

Language	:	English
Journal	:	Radiation Physics and Chemistry
Volume	:	98
Number	:
Pages	:	p.1 - 6
Publication Year/Month	:	2014/05
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Patent information	:
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Paper URL	:	https://doi.org/10.1016/j.radphyschem.2013.12.032
DOI for research data	:
Keywords	:	no keyword
Research Facility	:	コバルト60照射施設
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	兵庫県立大学

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Registration No. : AA20130873
JAEA Abstracts No. : 42000647
Paper Submission No. : 14275

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