Review on Epoxy Resin and Its Composite Engineering Materials

Epoxy resin is an important type of thermosetting resin， featuring excellent mechanical， adhesive， corrosion resistance， crack resistance， and fatigue resistance properties， and is widely used in engineering. Regarding the development， research， and application of epoxy-based engineering materials， this paper first summarizes its three-stage development process， then elaborates on the curing reaction mechanism and key performance control techniques of epoxy materials， and proposes solutions to the common brittleness problems. It classifies the materials based on their working state and functions during construction. It also provides a detailed introduction to various commonly used epoxy-based engineering materials in current engineering， analyzes the current research deficiencies and technical bottlenecks， and focuses on the new trends and demands of “high reinforcement， functionalization， high adaptability， and greenness”， proposing new development directions for epoxy-based engineering materials. Finally， it sorts out the product standards， performance testing methods， and engineering application standards of epoxy-based engineering materials， and looks forward to their future research and application development prospects， and puts forward several suggestions in combination with new engineering demands.