Epoxy resin excellent physical and mechanical properties and electrical insulation, bonding properties with a variety of materials, and the flexibility of the use of the process is not available in other thermosetting plastics, it can be made into coatings, composites, castables, Adhesives, molding materials and injection molding materials, in various fields of national economy has been widely used.
1, paint
Epoxy resin coating in a larger proportion, it can be made of different characteristics, uses different varieties. Commonality:
(1) excellent chemical resistance, especially alkali resistance;
(2) paint film adhesion, especially for metal;
(3) has good heat resistance and electrical insulation;
(4) better color retention paint.
However, the poor weather resistance of bisphenol A epoxy resin coating, easy to polish film in the outdoors due to lack of fullness, should not be used for outdoor coatings and high decorative coatings. Therefore, the epoxy resin coating is mainly used as anti-corrosion paint , Metal primer, insulating paint, but heterocyclic and alicyclic epoxy resin coating can be used outdoors.
2, adhesive
In addition to poor adhesion to polyolefins and other non-polar plastics, epoxy resins are widely used in various metal materials such as aluminum, steel, iron and copper; non-metallic materials such as glass, wood, concrete and the like; and thermosetting plastics such as phenolic , Amino, unsaturated polyester, and so have excellent adhesive properties, so there is a universal adhesive said.Epoxy adhesive is an important structural adhesive varieties.
The main purpose of epoxy adhesive in Table l-1, Table l-2 and Table l-3.
Table 1-1 Epoxy Adhesives Main Purpose
Table 1-2 Epoxy Adhesives in civil engineering main purpose
Table 1-3 epoxy adhesive in the car's main purpose
3, electrical and electronic materials
Due to its high insulation properties, strong structural strength and good sealing performance, epoxy resin has been widely used in the insulation and packaging of high and low voltage electrical appliances, electrical and electronic components and has been developed rapidly. It is mainly used for:
(1) electrical, electrical insulation package casting. Such as electromagnets, contactor coils, transformers, dry-type transformers and other high-voltage low-voltage electrical appliances overall sealed package manufacturing. In the electrical industry has been rapid development. From atmospheric casting, vacuum casting has been developed to automatic pressure condensate Plastic molding.
(2) Widely used as potting insulation for devices with electronic components and wiring. Has become an indispensable important insulating material in the electronics industry.
(3) Electronic grade epoxy molding compound for the plastic packaging of semiconductor components. In recent years the rapid development.Because of its superior performance, a great alternative to the traditional metal, ceramic and glass packaging trends.
(4) Epoxy laminated plastic is widely used in the fields of electronics and electrical appliances. One of the rapid development of epoxy CCL has become one of the basic materials for the electronics industry.
In addition, epoxy insulation coatings, insulation adhesives and adhesives also have a large number of applications.
4, engineering plastics and composite materials
Epoxy engineering plastics, including high-pressure molding for epoxy molding and epoxy laminated plastics, and epoxy foam. Epoxy engineering plastics can also be seen as a generalized epoxy composite materials. Epoxy composite materials Mainly epoxy glass fiber reinforced plastic (general-purpose composite materials) and epoxy composite materials, such as pultrusion epoxy profiles, winding hollow-shaped rotating body products and high-performance composite materials. Epoxy composite materials are chemical and aviation, aerospace , Military and other high-tech areas of an important structural materials and functional materials.
5, civil construction materials
Mainly used for anti-corrosion floor, epoxy mortar and concrete products, high-grade pavement and airport runways, rapid repair materials, reinforcement grouting material foundation, construction adhesives and coatings.