发明名称 |
IMPROVEMENTS IN OR RELATING TO FIBRE REINFORCED COMPOSITES |
摘要 |
The present invention concerns a process for the production of wind turbine structures. In the process, a stack of prepregs is located inside a vacuum bag. Each of the prepregs comprises a mixture of fibrous reinforcement and from 20 % to 85 wt % of an epoxy resin of EEW 150 to 1500 and containing from 0.5 to 10 wt % of a curing agent. The curing agent comprises a urea curing agent and an imidazole curing agent, and is free of dicyandiamide. The epoxy resin is cured by application of an externally applied temperature in the range 70°C to 110°C for a period of from 4 to 8 hours. |
申请公布号 |
WO2015011297(A1) |
申请公布日期 |
2015.01.29 |
申请号 |
WO2014EP66209 |
申请日期 |
2014.07.28 |
申请人 |
HEXCEL COMPOSITES LIMITED |
发明人 |
HADLEY, PHILIP;WHITER, MARK;HARRINGTON, CHRIS |
分类号 |
B32B5/10;B29C70/20;B29C70/80;B32B5/26;B32B5/28;B32B17/04;C08J5/24;C08K5/00;C08L63/00;F03D1/06;F03D3/04 |
主分类号 |
B32B5/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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