Epoxy resin/chopped glass fiber composite material and preparation method thereof

The invention provides an epoxy resin/chopped glass fiber composite material and a preparation method thereof.The preparation method of the epoxy resin/chopped glass fiber composite material comprises the following steps that an epoxy resin monomer, an acid curing agent and chopped glass fibers are mixed, and a raw material mixture is obtained; the acid curing agent is dicarboxylic acid with a disulfide bond; the raw material mixture is subjected to a dynamic vulcanization reaction, and the epoxy resin/chopped glass fiber composite material is prepared. According to the preparation method provided by the invention, the glass fiber does not need to be subjected to additional chemical treatment, the epoxy resin glass fiber composite material with good mechanical properties can be simply and conveniently prepared in an environment-friendly manner, and industrial application is facilitated. 本申请提供了一种环氧树脂/短切玻璃纤维复合材料及其制备方法，所述环氧树脂/短切玻璃纤维复合材料的制备方法包括以下步骤：将环氧树脂单体、酸类固化剂和短切玻璃纤维混合，得到原料混合物；所述酸类固化剂为带有二硫键的二元羧酸；将所述原料混合物通过动态硫化反