As we know, among the thermally conductive raw materials, thermally conductive pads are mainly composite materials based on silicone raw materials, which are very commonly used. However, due to the diversification of the use of silicone management systems, a widespread risk of volatilisation and oil leakage is gradually becoming a concern.
Thermally conductive silicone (thermally conductive potting adhesive): adhesive (once stuck on the difficult to remove, so most of the time is used in only a one-time bonding occasions, translucent, high temperature dissolution (viscous liquid), low temperature solidification (exposure), can not melt and dissolve, elastic.Thermally conductive silicone grease (thermal paste): absorbent, not viscous, paste-like semi-liquid, not volatile, not cured (low temperature does not thicken, high temperature will not become thin).
Thermally conductive silicone is often called thermally conductive potting adhesive or thermally conductive RTV adhesive, is a low viscosity flame retardant two-component plus molding silicone thermally conductive potting adhesive, can be cured at room temperature,Thermal conductive silicone grease is usually also called "thermal paste", "silicone paste", thermal conductive silicone grease is a high thermal conductivity insulating silicone material, not cured, can be used in -50 ℃ - +230 ℃ temperature for a long time to maintain the state of the grease paste.
Led silicone potting glue and LED epoxy resin potting glue is particularly convenient to use, curing speed can be reasonably controlled, whether heated curing or room temperature curing, curing quality is the same, does not affect the performance of play, more will not affect the use of years. However, in the heating and curing process is easy to produce bubbles, which requires the glue to be defoamed before potting to avoid this problem.
The advantage of thermally conductive adhesives for mounting LED chip heat sinks is that they provide mechanical and thermal performance over the entire area of the bond, so that heat dissipation is very effective. The maximum temperature is about 66°C. For every 1°C increase in operating temperature, the service life is significantly reduced.
A:Thermal grease is not an uncommon product in the market of thermal conductive materials, and it is used in many electrical appliances and electronic components to play a good role in heat dissipation. However, sometimes too much is applied accidentally, causing waste and possibly affecting the heat dissipation effect. Learn more about it and try to avoid wasting materials and time.
