CURING AND PROPERTIES OF THERMOSET CANOLA OIL BASED RESINS

摘要

Canola oil (CO) was modified through a number of chemical pathways to yield a variety of monomers namely, Acrylated Expoxidized CO (AECO), Maleinized Acrylated Epoxidized CO (MAECO), Maleinated Hydroxylated CO, and Maleinated CO Monoglyceride. Two of these, namely AECO and MAECO, were evaluated for their potential as a matrix for manufacturing thermoset composites using VARTM. Resin synthesized from blends of canola oil and linseed oil (AECLO) was also evaluated. The monomers were polymerized and cross-linked with styrene as the co-monomer. Effects of initiator type and amount, cure temperature, and styrene content were evaluated to determine optimal cure composition and conditions. Tensile modulus and T_g (Glass Transition Temperature) properties of the optimally cured canola based resins were evaluated and compared. Oil-solvable initiator resulted in optimal properties. Increase in styrene resulted in decrease in viscosity and increase in modulus and T_g. The viscosity, modulus, and T_g of MAECO were higher than that of AECO. While the viscosity of AECLO was comparable to the viscosity of AECO, its modulus and T_g were comparable to and higher than the modulus and T_g, respectively, of MAECO.