Thermal conductivity liquid silicone rubber
Liquid silicone rubber uses some low-viscosity polysiloxane as a base polymer, reacts with cross-linking agents and catalysts,can be cross-linked and cured at room temperature. Thermal conductivity liquid silicone rubber (two-component) production according to this principle. The thermal conductivity two-component room temperature vulcanized silicone rubber can be applied to electronic products, household appliances, electric toys, etc. Automotive parts and other circuit boards, as electronic potting adhesive, insulation protection adhesive, thermal conductivity and bonding adhesive. With the progress of society, the development of science and technology, and the update and iteration of electronic products, the amount of this kind of liquid silicone rubber has also expanded, forming a profitable business.
Production description
Commercially available thermal conductivity liquid silicone rubber is generally packaged according to two components, and there are also single-component packaging, but the cost will increase. When used, the two components of silicone rubber are mixed evenly and poured into the electronic components through the tool, which can be cured to form a protective layer at room temperature.
The combination of these two components is as follows
|
A component |
B component |
|
Base polymer Catalyst Thermal conductivity filler |
Base polymer crossing-linker Thermal conductivity filler |
|
Base polymer crossing-linker Thermal conductivity filler |
Catalyst |
|
Base polymer Catalyst |
Crossing-linker Thermal conductivity filler |
Room temperature/temperature curing silicone thermal conductivity material made of the above A and B components, this two-component elastic silicone is designed for pooping, protecting electronic products under harsh conditions, such as new energy batteries, inverters, electronic modules or electronic power supplies. When the two components are fully mixed in a certain proportion, the mixture will cure into an elastomer. The cured colloid has excellent physical and electrical properties.
Production features
1.Low viscosity and good fluidity
2.High thermal conductivity and excellent heat dissipation
3.Flame retardant,UL94V-0 flame grade
4.Stay stable physical and mechanical properties at -50 to 200℃ in long time
Thermal conductivity filler
The thermal conductivity of silicone rubber depends on the joint action of silicone rubber and thermal conductive filler, silicone rubber filled with a large number of thermal conductive filler (such as SiO2,Al2O3,BN), its thermal conductivity will be increased. When the amount of thermal conductivity filler is small, the thermal conductivity of the material is not much improved. When the amount of filler is increased to a certain extent, the contact and interaction between the fillers are formed, and the thermal conductivity of the material is significantly improved.
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