Evaluation of novel phenolic resin MPN as the matrices of composite materials

The processabilit y and thermal stability of methylol pr opargyl novolac r esins ( MPN resins) were studied, and the mechanical and thermal pr operties of MPN r esins as matr ices of silica laminate composites were character ized. MPN r esins possess excellent processability for RTM and compr ession mold processes, and t he cur ed resinsexhibit a high thermal stability (T_g> 350 e ) . T he silica/MPN laminates show impr oved mechanical pr operties compared to conventional phenolics laminate, and the mechanica l pr operties decrease with increasing methylol contents inMPN resins. T he thermal stability of silica/ MPN laminates ( T_g , 360~ 380 e ) was far superior to t hat of conventional phenolics laminate ( T_g , 280e ) . MPN resins might be utilized as matr ices of advanced thermo-structural composite materials.