Siloxanes 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 …
The demand for effective thermal management solutions in electronic equipment is on the rise as a result of rapid technological progress. These solutions aim to ensure that system devices operate at an acceptable temperature level to reduce the risk of damage and ensure the longevity of components. The traditional method of dealing …
Batteries challenge Battery manufacturers are currently challenged to produce large volumes of smaller, lighter, and cheaper lithium batteries. These higher energy density packs deliver more power, over a longer period of time, but to do so they need to avoid overheating and heat spikes, i.e. better thermal control. Thermal control In order …
Temperature it is a bottleneck for all power electronics in general, that’s a fact. We need safer, more efficient, and reliable electronics but as we are taking power density values to the limits, thermal performance becomes a tricky topic. Not only because thermal compounds have to fit all these technical requirements ( …
The competition for vehicle charging is not only played in the field of power (more power, less time) but also in the format… Cable vs Wireless, where each technology uses its own weapons and faces its disadvantages to position itself as the leading technology. If we talk about the charging method par …
INTERVIEW WITH XAVIER MIRABET – Keys to enter the automotive and power electronics industry 2022 will be remembered as a key year in all industries. After the pandemic, digitalization in all aspects of life has pushed us to create innovative solutions, which have helped us to adapt, both in terms of operation, …
How classify COMPOSITE MATERIALS? A simple scheme for classifying composite materials consists of three divisions: 1. Particle-reinforced composites. Particle-reinforced composites are subdivided into large-particle reinforced and dispersion-consolidated. This distinction is based on the consolidation or reinforcement mechanism. The term “large” is used to indicate that the matrix-particle interactions cannot be described at …
Compression molding is a process of molding in which a feeding material is placed into an open, heated mold cavity. The mold is then closed with a top plug and compressed with large hydraulic presses in order to have the material contact all areas of the mold. The charge cures in the …
Thermoplastics Processing Methods Thermoplastics are materials which soften when heated and can then be formed whilst soft. After cooling they becoming rigid take up the applied form. The softening and forming processes are reversible. Thermoplastics are probably the most widely used type of polymer. The group includes most of the “commodity” plastics …
What is a Thermoset? Thermoset plastics, or thermoset composites, are synthetic materials that strengthen when heated, but cannot successfully be remolded or reheated after initial heat-forming or molding. After thermosets are molded, the resulting parts offer protection against high operating temperatures, corrosion, and chemical resistance. These material property benefits allow molded thermoset …
Introduction Thermosets refer to the set of materials formed by polymers joined by chemical bonds acquiring a highly cross-linked final structure. The highly cross-linked structure of thermoset materials is directly responsible for the high mechanical and physical resistance (stresses or loads, temperature…) of these materials compared to thermoplastics and elastomers. On the …
Electrical Properties of Insulating Materials 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 dielectric constant is a measure of the electrostatic energy stored in the insulating material per unit volume under one unit …
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