Adhesives for electronic and electrical appliances

Electronic glue is a broad term, also known as electronic and electrical adhesive. It is used for bonding, sealing, potting, coating, structural bonding, film covering and SMT patch of electronic and electrical components. The main adhesives are: organic silica gel, instant drying adhesive, UV adhesive epoxy adhesive, etc.

Among them, room temperature vulcanized silicone rubber or silicone gel is used for filling and sealing of electronic and electrical components, which can play the role of moisture-proof, dust-proof, anti-corrosion and shockproof, and improve the use performance and stability parameters. Moreover, it is liquid before vulcanization, which is convenient for filling and use. When the organic silicon gel is applied for potting, it does not release low molecules, has no stress contraction, can be deep vulcanized, without any corrosion, and becomes transparent elastomer after vulcanization. The components encapsulated in the rubber layer can be clearly seen, and the parameters of the components can be measured one by one with a needle, which is convenient for detection and repair.

The room temperature vulcanized foam silicone rubber is used for the magnetic core board of the internal storage device of the electronic computer, and it completely meets the requirements through vibration, impact, cold and hot alternation and other tests. The fire-resistant potting compound prepared on the basis of addition molding room temperature vulcanized silicone rubber is very effective for molding products such as TV high-voltage cap and high-voltage cable sheath.

Single component room temperature vulcanized silicone rubber can be used as the surface coating protection material when it is not necessary to seal or inconvenient to dip and encapsulate. The surface protection coating of general electronic components is room temperature vulcanized silicone rubber, and the addition molding silicone gel is used for internal coating. In recent years, the application of glass resin coated electronic appliances and instrument components is more extensive.