Epoxy resin has excellent adhesion, chemical stability, mechanical properties, low shrinkage, easy processing and low cost, and is widely used in adhesives, construction, aerospace, coatings, electronics and advanced composite materials. However, pure epoxy resin has a high cross-linking structure, brittleness, poor fatigue resistance and impact toughness, which makes it difficult to meet the requirements of engineering technology, and its application is subject to certain restrictions. Modifying epoxy resin to improve its performance has become one of the research hotspots.