| abstract |
The present invention relates to epoxy resin-based fiber matrix compositions with alkyl-substituted ethylene amines such as, for example, dimethyldiethylenetriamine (DMDETA, also dimethyl-1,4,7-triazaheptane) as hardeners. These hardeners are characterized by a short hardening time with a comparatively long processing time and enable hardened epoxy resins with low brittleness, high tensile strength and high glass transition temperature, which is why the fiber-matrix composition according to the invention is particularly suitable for use in drawing and winding processes. |