一、aerospace applications

The use of bonding technology on the main load-bearing structure of the aircraft can not only improve the fatigue resistance of the aircraft. It has been applied in a variety of aircraft. Most of the important parts such as the fuselage, wings, and engine rooms have partially used bonding technology. The fixing of many parts in the cabin is inseparable from bonding technology.。

Another example, the plane's fuselage floor and top is a special structure formed by bonding a honeycomb sandwich called Nomex to a glass fiber board. Compared with riveting and welding, this structure has the advantages of light weight and high strength. , Good fatigue resistance, fiber reinforced material and metal are alternately bonded together to form a new composite material composed of a hybrid laminated structure, which can meet the requirements of a new generation of high-performance aircraft。

Adhesives have been widely used in many fields such as aerospace, automobile transportation, machinery manufacturing, material processing, electronic appliances, national defense and military industry, building materials, petrochemicals, printing and binding, light industrial textiles, medical and health care, and daily life. Adhesives and bonding technology have developed to the extent that almost everything is sticky. They are favored and widely concerned by all walks of life, and have huge development potential.

The aerospace industry (Aerospace Industry) and space technology (Space Technology) are developing extremely rapidly, and the manufacture and assembly of spacecraft and space stations are inseparable from adhesives. Reducing the weight of the aerospace vehicle and increasing the speed is one of the directions of the development of the aviation industry; in the aviation industry, adhesives were first used to bond metal structures, metal and plastic, metal and rubber, honeycomb sandwich structures and wall panels. etc., the components prepared by bonding technology have the advantages of light weight, strong structure, smooth surface, small stress concentration and good sealing, and have gradually replaced some rivets, bolts and welding.

The adhesive is used to repair the defects and cracks of concrete structures. It is easy to operate, not only can ensure the performance, but also has a smooth appearance; It has the advantages of high strength, fast drying and solidification, and simple construction.。

In addition, sealing adhesives can also be used for leakage prevention and sealing. Insulating glass made of elastic sealants can save energy and keep warm, sound insulation and noise reduction. The joints, expansion joints, deformation joints, etc. of the wall can only achieve good waterproof, anti-seepage, and anti-leakage effects by using sealants, while the laser glass or insulating glass, metal plate, slate, The connection between composite boards and metal frames, the use of structural sealants is irreplaceable。

The main applications of epoxy resin adhesives in the electrical industry are: insulation and fixation between steel rods of motor slot wedges, bonding between silicon steel sheets in transformers, iron cores of electron accelerators and phase phases of three-phase currents transported over long distances. bonding, etc. The application of epoxy conductive adhesive and epoxy thermal conductive adhesive in the electronics industry is quite distinctive. Epoxy conductive adhesive is a kind of adhesive with certain electrical conductivity.

The connection of electronic components used to be soldered, but soldering will cause problems such as deformation, damage, and easy oxidation of the joints. These problems can be solved by using epoxy resin conductive adhesive. The epoxy resin conductive adhesive has good adhesion. Strength, according to the selected curing agent, it can be formulated into single-component or multi-component, can be formulated into room temperature curing type, medium temperature curing type or high temperature curing type, can be formulated into solvent-free or solvent-based, epoxy conductive adhesive Excellent performance and diversity make it the most widely used variety of conductive adhesives。