SMIDA Thermal Conductive Silicone Resin Uniform Mixing Professional Solution

In the field of electronic heat dissipation materials, the mixing uniformity of thermal conductive silicone grease directly affects its thermal conductivity efficiency and application reliability. As a professional manufacturer of vacuum planetary centrifugal mixers, SMIDA provides innovative solutions based on planetary centrifugal motion and vacuum environment to address the mixing difficulties of thermal conductive silicone grease, especially in high filler content systems. When unevenly distributed thermal conductive silicone grease enters the SMIDA equipment, it can be quickly transformed into a uniform and delicate paste through the synergistic effect of high-speed planetary motion and centrifugal force field, solving problems such as filler settling and residual bubbles caused by traditional stirring. ​

Thermal conductive silicone grease is usually composed of silicone oil (matrix) and metal oxide (such as alumina, boron nitride) fillers, with a solid content of over 80% and a viscosity of up to 500000 to 1 million cP. Traditional mixers face three major challenges:
Filler settlement: High density fillers (such as boron nitride with a density of 2.2g/cm ³) have a large density difference with silicone oil, and are prone to layering after stirring. A certain heat dissipation module manufacturer has measured that the difference in thermal conductivity between the upper and lower layers of silicone grease under traditional processes is up to 18%
Bubble residue: High viscosity systems are prone to air entrapment during stirring, and a bubble rate exceeding 1% can increase thermal resistance by more than 20%
Low mixing efficiency: Traditional planetary stirring takes 40-60 minutes, and the uniformity can only reach ± 3%
The SMIDA device combines "planetary motion+vacuum defoaming" technology to shorten the mixing time to 10-15 minutes, improve uniformity to ± 0.5%, and control the bubble rate below 0.1%. After the application of a certain CPU heat dissipation silicone grease manufacturer, the consistency of the product's thermal conductivity increased by 25%, and the yield rate increased from 82% to 98%. ​

Design of Composite Motion Flow Field
The SMIDA device stirs the container to form a planetary trajectory through revolution and rotation, coupled with a 45 ° inclined blade, producing a triple mixing effect inside the container:
Shear dispersion: High speed rotation generates 2000G centrifugal force to disperse agglomerated filler particles (such as 5 μ m alumina) to below 1 μ m
Convection flipping: Planetary motion generates axial circulation of animal materials, overcoming flow resistance caused by high viscosity and achieving material displacement between upper and lower layers
Permeation mixing: Radial flow field drives molecular level permeation of materials with different densities (silicone oil density 0.96g/cm ³ vs filler 2.5g/cm ³)
Vacuum defoaming system
-The synergistic effect of vacuum negative pressure environment and centrifugal force causes bubbles to migrate towards the edge of the container under mechanical effects. Combined with the blade scraping design, the defoaming efficiency is four times higher than that of simple mechanical stirring. According to data from a supplier of automotive electronic silicone grease, after using SMIDA equipment, the bubble rate of flip chip heat dissipation silicone grease decreased from 4.5% to 0.08%, meeting the IATF16949 standard. ​
Intelligent temperature control module
The temperature control system regulates the ambient temperature during the stirring process through a water-cooled circulation system, avoiding the denaturation of the matrix silicone oil caused by the heat generated by stirring high viscosity silicone grease. The constant temperature vacuum stirring system customized by a certain military enterprise completes the addition of silicone grease mixing under stable temperature conditions, and the viscosity stability of the product is increased by 35%, meeting the wide temperature application requirements of aerospace equipment. ​

Comparison of typical case data
​ High thermal conductivity silicone grease: For ultra-high thermal conductivity silicone grease with a boron nitride content of 75%, SMIDA adopts a three-stage process of "pre stirring planetary centrifugal mixing vacuum defoaming" to solve the problem of viscosity surge caused by filler agglomeration. After being applied by a leading enterprise of heat dissipation silicone grease, the thermal conductivity of the product increased from 5.0W/m · K to 6.8W/m · K
Low volatile silicone grease: a vacuum stirring solution designed for silicone grease used in 5G base stations, which suppresses the volatilization of silicone oil through a vacuum negative pressure environment, reducing the volatilization amount from 1.5% in traditional processes to below 0.3%
Additive formed silicone grease: Customized protection system to prevent platinum catalyst poisoning. After being used by a semiconductor packaging enterprise, the shear strength of the cured silicone grease increased by 20%
Full cycle service: from formula optimization to mass production implementation
SMIDA provides one-stop solutions for thermal grease customers:
Material testing: Free analysis of the characteristics of silicone grease raw materials, with over 50 cases of thermal conductive silicone grease mixing established
Modular customization: We provide special models such as explosion-proof (ATEX certified) and sanitary (FDA standard) to develop planetary centrifugal mixers that meet customer requirements

As the performance requirements for thermal conductive silicone grease continue to increase in fields such as 5G and new energy vehicles, SMIDA is driven by both "technology+service" to help customers break through the bottleneck of hybrid processes. Whether you are facing high packing settling, bubble control, or viscosity stability issues, SMIDA vacuum planetary centrifugal mixers can achieve uniform mixing with professional technology, laying the foundation for improving the quality of heat dissipation materials. Contact us immediately to obtain an exclusive thermal conductive silicone grease mixing solution, ensuring that each silicone grease reaches the desired uniform state.