It is mainly composed of adhesive and heat conducting particles. Before sizing, it is a paste like mixture. After sizing, it solidifies under certain time and conditions. Our heat-conducting silica gel is a one component room temperature vulcanized silicone rubber, which has a good bonding effect. Room temperature curing, simple curing conditions, repairable, curing thickness generally between 4-5mm. However, it is sensitive to the surface state of the radiator, and the binding force of the surface polluted device or radiator is weak. Strict on-site process control.
1. Environmental protection, non-toxic, non corrosive, in line with RoHS and reach instructions.
2. Excellent adhesion, fixation, insulation, sealing, moisture-proof, shockproof and aging resistance.
3. It can be firmly bonded with metal, glass, ceramic, plastic and other materials.
4. The cured silicone rubber has good electrical insulation performance, high and low temperature resistance, water and moisture resistance, aging resistance and long-term rubber elasticity.
performance index
Before curing: ① external view: gray half flow; ② product type: condensation type; ③ viscosity; MPa. S, 25 ℃): 15000-30000; ④ relative specific gravity (25 ℃): 1.40 & plusmn; 0.05
Operating performance: ① surface skinning time (min, 25 ℃): 3-8 & nbsp; ② curing time (min, 25 ℃): 8-12 hours (3-5mm) & nbsp; ③ curing time (min, 80 ℃)
After curing: ① hard (Shore A): 40-50 & nbsp; ② thermal conductivity [& nbsp; w (M & middot; K): & le; 0.90 & nbsp; ③ dielectric strength (kV / mm): & Ge; 18 & nbsp; ④ dielectric constant (100MHz): & le; 3.5
&Nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; ⑤ volume resistivity & nbsp; (& omega; & middot; cm): & Ge; 1.0 & times; 1014 & nbsp; ⑥ elongation at break (%): 160-200 & nbsp; ⑦ tangent value of dielectric loss (1MHz): & le; 2.0 & times; 10-3
The above mechanical and electrical properties were measured at 25 ℃ after aging or room temperature curing for 7 days.
It is mainly used for heat dissipation (heat conduction), fixation, shock absorption, bonding, insulation and other functions of high-power electronic and electrical components. Such as switching power supply, transformer, high-power LED, network transformer, router, etc.
Cs-833 single component room temperature curing silicone rubber (heat conduction type) has the following characteristics:
* this product is a single component organic silicon compound, which is a gray semi fluid.
* this product has good thermal conductivity, high and low temperature resistance, earthquake resistance, corona resistance, leakage resistance insulation, corrosion resistance, weather resistance and other characteristics. After curing, the colloid can be used in a wide temperature range.
* no shrinkage during curing, good waterproof, moisture-proof and insulation performance.
* meet the requirements of EU ROHS directive.