| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 271113 | Fusion Engineering and Design | 2014 | 5 Pages |
•Irradiation resistance of glass fiber reinforced cyanate ester/epoxy composite was investigated.•The cyanate ester/epoxy resin system has a low viscosity and long pot life.•The Tg of the matrix resin decreased slightly with the increase of irradiation dose.•The ILSS of GFRP composite increased slightly when exposed to 10 MGy of gamma irradiation.
Cyanate ester/epoxy resin was used as a cryogenic-grade polymer matrix and glass fiber reinforced polymer (GFRP) composite was manufactured. The processing properties of matrix resin in terms of the isothermal viscosity at 45 °C were investigated. The specimens were exposed with gamma irradiation of 1 MGy, 5 MGy and 10 MGy, respectively. The effect of gamma irradiation on thermal properties and structure of cyanate ester/epoxy matrix was investigated. The interlaminar shear strength (ILSS) of the composites before and after irradiation were investigated at room temperature, 77 K and 4.2 K. Results showed that cyanate ester/epoxy system had a low viscosity and a long pot life at 45 °C. The glass transition temperature of the matrix resin decreased with the increasing irradiation dose. Moreover, the ILSS of GFRP composite slightly increases after irradiation and toughening mechanism was also discussed.
