November 25, 2022
Recommended winter items
Good things in winter in recent years - constant temperature kettle, constant temperature coaster;
Family heating artifact - baseboard heater;
The king of classic heating - electric blankets, electric heaters;
There are countless good things for winter, but most of them are electrical appliances. These electrical appliances have been carefully crafted in the production line, and finally entered every family in need of warmth. In the production process, there is an essential process, that is, bonding and sealing. As the most common material for bonding and sealing electronic appliances, silicone sealant has also been affirmed by the market because of its superior performance.
As an important material behind " winter", how does silicone sealant have such a good fit with electronic appliances? Today, let us reveal together——
The linking of silicone sealant and electronic appliances
As a commonly used multifunctional polymer adhesive, silicone sealant can bond various substrates such as metal, organic plastic, glass, ceramics, etc., and has very superior performance. Silicone sealant is widely used in the field of electronic appliances. It can not only meet the needs of electronic and electrical product design, but also improve production efficiency and reduce costs. It is one of the indispensable and important auxiliary materials in this field. From household appliances such as washing machines, water heaters, and rice cookers to semiconductor devices such as integrated circuits, circuit boards, and chip packaging, silicone sealants can be seen everywhere.
Silicone sealant is mainly based on polydimethylsiloxane, which is an elastic polymer rubber material formed after vulcanization by filling fillers, adding crosslinking agents, catalysts and other additives. There are two main types of its vulcanization principle, one is the condensation reaction, the sealant cross-links with water molecules to form a three-dimensional network structure, and releases small molecular substances. After the reaction is completed, an elastic rubber body is formed. ; The other type is mainly an addition reaction, and its curing principle is mainly in the presence of a Pt catalyst, and hydrosilylation occurs to form an elastomer. Therefore, the silicone sealant after forming an elastomer can play a role in sealing, fixing, and bonding in electronic modules of electronic and electrical components, and has many advantages during use.
The combination of silicone sealant and electronic appliances has the following advantages:
The working temperature range is wide, and the working performance does not change much at -50 ° C ~ 180 ° C after the elastomer is formed. It has certain elasticity and good tensile performance. The wear and tear of components and parts prolongs its service life, and at the same time it is easy to repair if it fails.
Excellent electrical insulation. Some data show that the vulcanized silicone sealant has good electrical insulation in the range of -60 ° C ~ 200 ° C, and the frequency and temperature changes have little effect on the dielectric constant and dielectric loss factor, which can effectively improve The safety and stability of electronic and electrical work.
The construction operation is simple and flexible, and the gluing equipment is low in cost, efficient and fast. For example, one-component silicone sealant can be precisely applied when used, and is suitable for bonding small parts inside electronic appliances.
Excellent aging resistance can prolong the service life of electronic and electrical components, and it is not easy to fail during use.
High flexibility in formula debugging. By adding functional fillers to silicone sealant raw materials, special functional silicone sealants can be realized, such as silicone sealants for electronic appliances with thermal conductivity, to ensure that the product is in use. Heat dissipation components can realize rapid heat conduction and heat dissipation through thermally conductive silicone sealants, which can protect electronic components and maintain stable operation of electronic products. Other functional silicone sealants can also be realized, such as conductive silicone sealants, flame-retardant silicone sealants, ultra-high temperature resistant silicone sealants, etc.
Excellent light resistance, so that it has special applications in electronic appliances, such as silicone sealants for photovoltaics in solar cells.
At present, silicone sealants have been widely used in the fixing of components in refrigerators, air conditioners, washing machines and other household appliances, radiator filling, glass panel bonding partitions, storage box fixing, frame sealing, etc.; it can also be used in kitchen appliances. Bonding, such as range hood panel bonding, microwave induction cooker coil/microcrystalline plate bonding, microwave oven cavity/door body, oven door body/door handle bonding; it can also be used for bonding small household appliances, such as kettles, health pots Bonding of pot bottom/handle+pot body, electric iron heating soleplate/shell bonding, etc.
As a leading company in the sealant industry, BAIYUN is committed to dedicating the best products to human beings, offering comprehensive and systematic adhesive solutions and customized services in the field of electronic appliances for every consumer who pursues perfection, and helping electronic appliances Industry development, escorting the protection of sealant used in the electronic and electrical industry.