关键词: 复合材料, 热压工艺, 流变特性, 氰酸酯树脂

Abstract:

The rheological property of a bisphenol A cyanate resin was investigated by means of parallel plate method, it was modified by isothermal precure process. The effects of precure process on the chemical structure of resin were studied by IR, DSC and GPC methods. In addition, the influence of the  pressure applying moment and precure conditions on the quality of S2 glass fiber/cyanate resin composite laminates was analyzed for hot press process. It is shown that the cyanate resin has low cure reactivity and high flowability, so the resin flow can not be controlled easily. The precure process makes the resin cure to a certain extent, decreases resin flowability, improves resin processability significantly, and enhances the composite laminates quality.