Epoxy resin technology development trend towards high performance, high added value development, pay attention to environmental protection and production safety. Special structure epoxy resin and auxiliary products towards fine, functional, curing in special environment development. The cured product has high toughness, high strength, radiation resistance and high and low temperature resistance. Therefore, the varieties of special resin, curing agent and diluent will have greater development, forming the production pattern of multi-varieties and small batch. With the recent development of polymer physics, the development of varieties has been focused on the preparation of epoxy-rubber, epoxy-thermoplastic, various organic and inorganic fillers and epoxy resin based inorganic nanocomposites by chemical or non-chemical synthesis, blending and alloying.

　　1) coating

　　The development trend of epoxy coatings is to reduce dyeing, improve quality and safety, and develop functions. The emphasis is on the development of anti-corrosion, functional and environmental coatings for cans and their application. Especially the variety of waterborne epoxy system development and quality improvement, will be in the automotive industry (e.g., electrophoresis coating), household appliances industry, food industry, such as tank coating, chemical industry, such as anticorrosive coatings, the construction industry (such as floor coating, epoxy mortar and concrete, construction adhesives) application fields so as to obtain a breakthrough.

　　Electronic materials

　　With the development of electronic equipment towards miniaturization, lightweight, high performance and high function, electronic devices are also developing towards high integration, thin type and multilayer accordingly. Therefore, it is required to improve the heat resistance, dielectric property and toughness of epoxy encapsulation materials and copper-clad plate, and reduce the water absorption and internal stress. The current development focuses on epoxy resins and curing agents with high purity, high heat resistance, low water absorption and high toughness. For example, the introduction of epoxy resin and curing agent, dicyclopentadiene, biphenyl, diphenyl ether, fluorene and other skeletons can greatly improve the resistance of epoxy cured parts and electrical properties, reduce the clarity of water. In addition, the research and development of smouldering ring gas system has attracted great attention outside the park.

　　High performance epoxy composite material

　　The research emphasis of high performance epoxy composites is to improve the heat and humidity resistance, compression strength after impact and mechanical properties between layers. In order to improve the heat and humidity resistance, the framework such as tea, dicyclopentadiene, biphenyl, diphenyl ether, and seedling can be introduced into epoxy resin and curing agent just like epoxy electronic materials. In order to improve the compression strength and intermediate mechanical properties after impact, the fracture toughness of epoxy cured materials can be improved, usually by adding rubber or heat resistant thermoplastic resin into the epoxy resin to form a polyphase system with island structure or interpenetrating network structure.

　　Fireproof epoxy material

　　The occurrence of vicious fire makes people gradually realize that the flame retardant of materials is far from achieving the purpose of fire prevention. The requirements of fire resistance for aircraft materials are put forward first, that is, they are flame-retardant (flame retardant), less smoke, low toxicity (little gas toxicity), low heat release rate and so on. The development of fire-resistant epoxy materials is of great importance not only to aviation and aerospace, but also to vehicles, ships, household appliances, high-rise buildings and public buildings.

　　Liquid crystal epoxy resin

　　Liquid crystal epoxy resin is a kind of polymer network with high molecular order and deep molecular crosslinking. It combines the advantages of liquid crystal order and network crosslinking. Compared with ordinary epoxy resin, its heat resistance, water resistance and impact resistance are greatly improved, which can be used to prepare high-performance composite materials. At the same time, the liquid crystal epoxy resin has low linear expansion coefficient in orientation direction, high dielectric strength and low dielectric loss, and can be used in the field of electronic packaging with high performance requirements. It is a kind of structure and functional material with good application prospects, and has received much attention at home and abroad.

　　The research of liquid crystal epoxy resin started late and is not mature. From a theoretical point of view, the effect of curing technology on the system order degree in curing process is worth further study. The phase state of the initial reaction system can affect the reaction speed, and the speed of the reaction also affects the order degree of the cured resin, so the exact order degree and cross-linking degree data are needed, which have not been solved yet. From the perspective of performance research and development, no systematic characterization of mechanical and electrical properties of liquid crystal epoxy resin has been reported. At the same time, modification of ordinary epoxy resin by liquid crystal epoxy resin is a feasible way to achieve high performance of epoxy resin, which has important application value.

　　Epoxy resin inorganic nanocomposite

　　Nanomaterials and nanocomposites are a new type of high-performance materials developed rapidly in the past 20 years. They are the most dynamic fields in the research of new materials and have a very important impact on the future economic and technological development. Japan listed it as one of the four major research tasks of material science, the United States "Star Wars" and Europe "Eureka" project listed it as a key project, and China also set up a subject group of nanomaterials in the climbing plan. Nanometer material is a kind of ultrafine particle material, its particle size is 1-l00mm. Therefore, it has a large specific surface area, a high surface energy, a serious lack of coordination of surface atoms, and a strong surface activity and super adsorption capacity. It also has some special properties that conventional materials do not have, such as volume effect, quantum size effect, macroscopic quantum tunneling effect and dielectric limited domain effect. Therefore, nanomaterials have microwave absorption, high surface activity, strong oxidation, superparamagnetism and other properties, as well as special optical properties, catalytic properties, photocatalytic properties, photochemical properties, chemical reaction properties, chemical reaction kinetic properties and special physical and mechanical properties. The application of nanomaterials will be a revolution of traditional materials, especially functional materials. The use of nanomaterials in composite materials will also bring great changes in the development of composite materials. Nanocomposite materials can be divided into two categories: one is inorganic nanocomposite materials composed of metal/ceramics, metal/metal, ceramic/ceramics; the other is inorganic nanocomposite materials composed of metal/ceramics. The other is polymer nanocomposites composed of polymer/inorganic and polymer/polymer. The research of polymer nanocomposites started late, but it has developed rapidly in the past 2-3 years. The inorganic nanomaterials used for epoxy resin nanocomposites include Si02, Ti02, Al2O3, CaCO3, ZnO, clay, etc. The preliminary results show that nanomaterials can greatly improve the mechanical properties, heat resistance, toughness, scratch resistance and other properties of epoxy composites, and can improve the heat resistance and toughness at the same time. At present, the research of epoxy nanocomposites focuses on the method of uniform dispersion of nano-materials in the matrix. The research of compound method, compound effect, compound rule and compound mechanism; Application of epoxy nanocomposites. Nanomaterials and technologies have added high-tech content to the development of epoxy coatings, adhesives, electronic materials, plastics, composites and functional materials, and opened up a new way, which will certainly bring great changes to the development and application of epoxy materials.

　　Sucrose based epoxy monomers and epoxides

　　Two groups of sucrose based epoxy monomers, named epoxyallyl sucrose (EAS) and epoxybutenyl sucrose (ECS), were prepared by epoxidation of octane xypropane sucrose (OAS) and octane butenyl sucrose (OCS), respectively. Studies on synthesis and structural properties show that the new epoxy monomer is a mixture of structural isomers and asymmetric isomers, and each sucrose molecule contains a different number of epoxy groups. EAS and ECS can be prepared into epoxides with an average of 1 to 8 epoxy groups per sucrose molecule.

　　DETA cured sucrose epoxy polymers begin to degrade at about 320℃ and can be bonded to aluminum, glass, and steel. Relative lap shear test (ASTMD1002 94) showed that DETA cured allyl epoxy sucrose, with an average of 3.2 epoxy groups per sucrose molecule (EAS-3.2), was elastic adhesive compared with BISphenol A diglycidyl ether, while DETA cured ECS-7.3 had better performance than DGEBA and EAS-3.2. All sucrose based epoxides are cross-linked and soluble in water, dimethylformamide, tetrahydrofuran, acetone and dichloromethane.