Insulation materials _ CoolMag

Which are the typical insulation materials for power electronics?

The properties of insulating materials are enumerated and discussed as under[1]: Electrical Properties Thermal Properties Chemical Properties Mechanical Properties Electrical Properties of Insulating Materials[2, 3]:  Dielectric Constant (Permitivity) A dielectric is a material which has poor electrical conductivity but inherits an ability to store an electrical charge (due to dielectric polarization). The …  

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electronic potting

Process of embedding electronics: find out the different methods and potting materials

Long-term [1],reliable protection of sensitive electronic components is essential to many electronic applications today and prevents premature failure. Increasingly small systems and rising circuit densities have resulted in hotter operating temperatures, and driven demand for high-performance solutions for heat dissipation .   Methods of Embedding[2]  The following table shows the different technologies currently applied to …  

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Low surface energy materials: measurements and how to optimize interface for bonding

Low surface energy materials Certain polymeric substrates are difficult to bond. The main reason that these materials present problems is their low surface energy which is unlike metals, ceramics, and most other polymers. The low surface energy simply prevents conventional adhesives from making intimate contact (wettability) with the substrate surface and this reduces adhesion. Image 1: a) Surface Free …  

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Thermal Conductivity in a Solid

How the thermal conductivity is measured in a solid?

The non‐steady‐state or transient technique records a measurement during the heating process. The method determines thermal conductivity properties by means of transient sensors. These measurements can be made relatively quickly, which garners an advantage over steady‐state techniques. For this reason, numerous solutions have been derived for the transient heat conduction equation by …  

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What if you can design your Power Electronics with a thermally conductive thermoplastic?

TDS – COOLMAGPLAST – EN 0.1 New Thermally Conductive Compound, Coolmagplast TM   COOLMAGPLAST is a thermally conductive, electrically non-conductive PA6 based flame retardant grade. COOLMAGPLAST is lightweight, net-shape moldable and allows design freedom in applications previously restricted to metals and ceramics. COOLMAGPLAST combines thermal conductivity and electrical insulation in standard pellet form …  

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Why is so important the thermal conduction in ceramics and polymers?

Thermal properties Heat flows across temperature differences. There are three modes of heat transfer: conduction, radiation, and convection. Conduction and radiation are fundamental physical mechanisms, while convection is really conduction as affected by fluid flow. Conduction is an exchange of energy by direct interaction between molecules of a substance containing temperature differences. …  

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How to select the right potting resin? (Types, methods and applications)

Embedding processes of electronic devices Long-term [1],reliable protection of sensitive electronic components is essential to many electronic applications today and prevents premature failure. Increasingly small systems and rising circuit densities have resulted in hotter operating temperatures, and driven demand for high-performance solutions for heat dissipation. Potting process (1) Methods of Embedding[2] The …  

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Testing and qualifiying resins: The main standards

Resins are used in a lot of formulations of Coatings, Inks, Paints, and dispersions of fillers, quartz, pigments that have functional application. As a definition of resin: A thick, sticky substance that is produced by   some trees and that becomes yellow and hard after it is collected, or any of various similar substances produced by a chemical process for use in industry: Or any of various solid or semisolid amorphous fusible flammable natural …  

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Why use a silicone based thermal conductor silicon based resins?

What makes silicone rubber versatile? Polymers are widely used in industry and in our daily life because of their diverse functionality, light weight, low cost and excellent chemical stability. However, on some applications such as heat exchangers and electronic packaging, the low thermal conductivity of polymers is one of the major technological …  

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Cleaning and maintenance of silicon-based resin equipment

Silicone is an odorless and colorless synthetic rubber widely used in various sectors thanks to its special properties. It is a polymer of high molecular weight and three-dimensional crosslinking; they are formed by a main chain of silicon and oxygen atoms, which unlike quartz (SiO2), has an organic group R every four …  

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Safety and environmental considerations using silicones

Silicones have very particular chemical and physical properties, since they differ from most of the polymers used in the industrial, as they do not contain carbon in their base skeleton, as can be seen in Image 1, where their composition is Silicon atoms linked with oxygen atoms, which alternates in periodic units, …  

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