CTD101K+DY040 sample plates were produced with 10 wt.% and with 20 wt.% Araldite DY040 relative to CTD101K epoxy resin. Araldite DY040 is a solvent-free, low-viscous hot-curing polyglycol flexibiliser [27 ], which is part of the Araldite F epoxy-resin system described below. First, the CTD101K epoxy resin and hardener were mixed and degassed, and then, DY040 was added. This mix was again degassed before the accelerator was added, and a final degassing was executed. The same curing-temperature cycle as the one for the CTD101K system was applied. In the following, the CTD101K+10 wt.% DY040 epoxy system is referred to as POLAB Mix.
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