Study on composite based on the modified cyanate ester resin

In this paper, the composite based on the ternary blend of cyanate eater, epoxy resin and novolac resin was discussed. Differential scanning calorimetry (DSC) was employed to detect the reaction activity and curing schedule of ternary blend system. Ternary blend system reaction velocity was decreased because of addition of novolac resin. Mechanical properties,dielectric properties and hot-wet properties of the laminate composite reinforced by E-glass were investigated. The results showed that composite based on the ternary blend system possessed excellent integrated properties. Inclusion of 15wt% novolac resin led to 12% and 30% increase in the flexural strength and interlaminar shear strength, respectively. The dielectric constant,dielectric loss and water absorption decreased 6%,40% and 9%, respectively.