Are chemical compounds with a backbone of alternating silicon (Si) and oxygen (O) atoms, each silicon atom bearing one or several organic groups, as be seen in the image 1, are very flexible due to large bond angles and bond lengths compared to those found in more basic polymers. Siloxanes are building blocks for silicone products or make part of other products, such as cosmetics or paint.
Image 1: Representation of the chemical structure of Silicones
Polymers are widely used in industry and in our daily life because of their diverse functionality:
However, on some applications such as heat exchangers and electronic packaging, the low thermal conductivity of polymers is one of the major technological barriers.
Long-term, reliable protection of sensitive electronic components is essential to many electronic applications today. Increasingly small systems and rising circuit densities have resulted in hotter operating temperatures, and driven demand for high-performance solutions for heat dissipation.
Oils and gums that can be formulated in fluids (emulsions, resins, greases, compounds) or elastomers. Thanks to its versatility, silicones are used in a wide range of applications. Typically, silicones are presents in every technologic device for protecting micro-electronics with potting and encapsulation, as well as in every car in the world for sealing and bonding functionalities.
Finally, in list below, it can be observed the performance characteristics silicone versus others resins
Table 1: Properties of different types of resins
In its uncured state, silicone rubber is a highly-adhesive gel or liquid. In order to convert to a solid, it must be cured, vulcanized or catalyzed. Silicone elastomers are the most important group of silicones serving in the industry. Owing to the wide range of potential applications, they differ with respect to viscosity and curing systems.
CoolMag™ is designed to provide thermal conductivity, electrical safety, hazard protection, mechanical and fire protection for electronic encapsulating applications.
CoolMag™ thermally conductive solutions include:
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