High thermal conductivity solution of silicone heat conductive potting adhesive for electronic products
Feb 21,2023 Hanast
Thermal conductive potting adhesive and thermal conductive silicone grease have been widely used in electronic products. They can not only efficiently dissipate heat, but also be waterproof and moisture-proof, and have good insulation. Before the protection of these thermal conductive materials, they can improve the stability, efficiency and life of electronic products.
The heat-conductive potting adhesive is suitable for all kinds of high-end precision/sensitive electronic devices working in harsh environments. Automotive electronics, modules, LED power drive modules, solar module junction boxes, electric vehicle charging column modules, lithium battery packs, capacitor packs, magnetic induction coils, and inverter power supplies not only enhance the waterproof ability, seismic resistance and heat dissipation performance of electronic products, but also protect them from the erosion of natural environment and extend their service life.
Before curing, the heat-conductive electronic potting adhesive is liquid and has fluidity. The viscosity of the adhesive varies according to the performance, material and production process of the product. The use value of the heat-conductive electronic potting adhesive can be realized only after it is completely cured. After curing, it can play the role of waterproof, moisture-proof, heat conduction, confidentiality, corrosion prevention, dust prevention, insulation, temperature resistance and shock resistance. So what performance requirements should the electronic potting adhesive applied to electronic components meet?
1. Colloid has no corrosive effect on electronic components;
2. The solidified colloid will not deform even after mechanical processing;
3. It has strong resistance to cold and hot changes. Even if it is subjected to cold and hot changes between - 60 ℃ and 200 ℃, the colloid can still remain elastic and not crack;
4. Electronic potting silicone rubber can be cured at room temperature or at elevated temperature;
5. It has excellent thermal conductivity, which can effectively improve the heat dissipation ability of electronic products after filling; Especially now, the thermal conductivity of high thermal conductivity products is required to be 2.0-3.0W/mk
6. It has excellent weather resistance and salt fog resistance to ensure that electronic components will not be eroded by the natural environment;
7. Strong electrical insulation ability, which can effectively improve the insulation of internal components and lines after potting;
8. Electronic potting silicone rubber has hydrophobic property, which can improve the moisture-proof performance of electronic components after potting.