The effect of post curing on the VARI-ed twill carbon fibre reinforced crestapol 1260 composite

Lightweight aircraft development involves exploration on the strength of inorganic fiber and a lightweight of polymer resin. Their combination could result in a lightweight-high strength composite. So far the most popular composite in aircraft are carbon fiber reinforcement or glass fiber reinforcement composites. These composite had used epoxy or polyester as matrix. In this study, a urethane acrylate resin (namely Crestapol 1260) and a twill carbon fiber (namely Justus 183-C40-134) was used to make composite. The crestapol is a thermoset resin with a more environmental friendly characteristic than the epoxy. Composite was manufactured through Vacuum Assisted Resin Infusion (VARI) technique. VARI had reported able to lower a porosity content in the composite and better than hand lay-up method. Existence of porosity made composite experiences the composition deviation, but number of the deviation is not clearly reported yet. It is known that a crestapol normally cured at room temperature, but a higher temperature might be better for the curing regarding to its thermoset resin. The composite will be evaluate on density, porosity content, tensile and compressive properties include its failure mode.