Issue 14/2018 - Silicone materials improve thermal management in electric vehicles

At the 2018 Shanghai New Energy Vehicle and Battery Swapping Technology Conference on July 11, WACKER presented a number of silicone thermal conductive products for thermal management
of electric vehicles.

WACKER's newly developed SEMICOSIL Paste 30 TC and SEMICOSIL^®®Paste 40 TC are one-component, non-curing, low-stress pastes with thermal conductivity of 3.
0 W/mK and 4.
0 W/mK
, respectively 。 The product has special rheological properties, can form a uniform thin layer, not only suitable for rapid dispensing, printing process, but also can quickly fill the fine gaps of the heating interface, and the thermal resistance is stable under heat aging conditions, which is an ideal material
for PCB thermal management of electric vehicles.

The new ELASTOSIL^®RT 76XX TC series thermally conductive potting adhesive is a two-component plus molded silicone rubber, which can be cured at room temperature and has a thermal
conductivity between 1~2W/mK.
The product has low viscosity and good fluidity, suitable for potting complex structures, and can be used for thermal management
of electric vehicle 48-volt batteries, on-board chargers and power conversion modules.
This series of potting compounds can maintain elasticity in the range of -50°C~180°C to meet the long-term reliability requirements of
electric vehicles.

SEMICOSIL^®96X TC series thermal caulk can form a soft, elastic and surface adhesion silicone elastomer through addition curing reaction at room temperature, with thermal conductivity between 2~3.
5W/m·K
.
The specially optimized formulation system allows the product to be conveyed efficiently in the dispenser and reduces wear on the dispensing equipment, thus ensuring stable and efficient production
.