Application of silicone

Jan 5, 2018

Silicone resin is mainly used for the preparation of silicone insulation paint, silicone coatings, silicone adhesives and silicone plastics. High-end architectural coatings such as high-performance coatings is the main market silicone, the main varieties of modified polyester and modified acrylic resin. In addition, the consumption of silicones in the electronic / electrical industry is growing rapidly, which is also an important driving force for the development of global silicones in the future. The market prospect is very broad.
1. Electrical insulating paint: electrical appliances volume, quality and useful life, and the performance of electrical insulation materials have a great relationship. Therefore, the industry requires the use of a variety of electrical insulating paint, including coil impregnated paint, glass cloth impregnated varnish, mica adhesive insulation paint and electronic appliances such as protection of silicon paint.
2. Coating: Silicone resin has excellent heat resistance, cold resistance, weather resistance, water repellent and other properties, combined with colorless, transparent and have good adhesion and wear resistance of the coating anti-sticking film and moisture-proof water repellent coating .
3. Adhesives: As a silicone adhesive used as a silicone and silicone type of two, both in the structure and cross-linking density differences. One of the resin-based adhesive and pure silicone type and modified resin respectively.
4. Plastic: mainly used in heat-resistant, insulation, group, anti-arc silicone plastic, semiconductor components, shell encapsulation plastic, foam.
5 powder and trapezoidal polymer: Silicone resin powder and inorganic filler, compared with low relative density, but also with heat resistance, weather resistance, lubricity and hydrophobic characteristics. Trapezoidal silicone resin than the general network of three-dimensional structure of the silicone has high heat resistance, electrical insulation and flame resistance.
Silicone adhesive
Silicone adhesive also called silicone adhesive.
use
Among the existing heat-resistant adhesives, silicone adhesives are one of the finest varieties. The polysiloxane used as a binder can be divided into a silicone-based adhesive and a silicone rubber-based adhesive according to the source of the raw materials. The former is mainly used for bonding metal and heat-resistant non-metallic materials, the resulting adhesive can be -60 ℃ ~ 200 ℃ temperature range; the latter is mainly used for bonding heat-resistant rubber, rubber and metal and other non-metallic material.
Features
Silicone resin, iron, aluminum and tin like metal bonding performance, glass and ceramics are also easy to glue, but poor adhesion to copper;
Silicone-based silicone adhesive base on silicone resin as the base material, adding inorganic filler and solvent mixture, release small molecules when curing, to be heated and pressurized;
Silicone based adhesive curing temperature is too high, the application is limited;
Adding a small amount of ethyl orthosilicate, potassium acetate and silicate glass, the curing temperature dropped to 220 ~ 200 ℃, high temperature strength is still 3 92-4 90MPa;
Pure silicone resin with low mechanical strength, and polyester, epoxy or phenolic resin copolymerization modified, high temperature performance and excellent mechanical properties can be obtained for high temperature structural adhesive.