| 摘要 |
Epoxy resin formulations of a mixture of a liquid epoxy resin and a solid or semi-solid epoxy resin containing a photoinitiator are used as the matrix in prepregs which are cured or partially cured by radiation to avoid the need for thermal cure in an oven. The formulation is particularly useful in the production of wind turbine blades especially in an automated process. The process comprises (a) depositing a prepreg containing a radiation initiated curing agent onto a mould using automated apparatus; and (b) applying heat (e.g. infrared) and a second radiation (e.g. ultraviolet) to at least partially cure the prepreg at least simultaneously with deposition of the prepreg. An automatic tape laying apparatus for automated deposition and simultaneous partial cure of a prepreg comprises a compaction device, a heat source and a second radiation source. |
