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What's Thermal Interface Materials?


what is thermal interface materials; The Thermal interface Materials act on Thermal Conduction

There are different types of thermal interface materials: thermal conductive greases, phase change materials, thermal gap filler pads, thermal tapes, thermal epoxies, gels, solders, etc.
 
Thermal Conductive Grease/Compounds(TIMs) 
Thermal greases (also known as thermal compounds and thermal pastes) are  made from silicone or hydrocarbon  oils that are mixed with conductive ceramic or metal particles. Thermal greases offer the best overall performance because they can easily  flow  into all voids on the surface and form the thinnest possible thermal joint. Our Thermal Greases provide high thermal conductivities, minimum bondline thicknesses and superior surface wetting. They don’t dry out or pump-out and remain stable through all standard reliability testing. 
 
Thermal Gap Pads (TIMs)
Thermal Gap filler pads (also called gap pads and elastomeric pad) are made of thermally conductive silicone elastomers which deform easily under compression force to fill up  air gaps and surface irregularities between heat sinks and components to increase the heat transfer rate. With typical thickness of 0.25-2.0 mm, most gap pads incorporate a woven fiberglass carrier to improve handling and contain inorganic fillers as thermal greases do. 
thermal interface pad sheet; Soft with high compressibility to reduce thermal resistance and enhance thermal conductivity

Soft with high compressibility to reduce thermal resistance and enhance thermal conductivity optional thermal conductivities for your cooling applications, naturally sticky cost effective solutions with competitive price.
 
Phase-Change Interface Material(PCM)
Phase-change interface materials are characterized by the material's change from solid to soft aggregate state at a pre-defined temperature - the so-called phase-change temperature. Phase change materials (PCM) are solid films at room temperature that  melt or soften when the temperature rises to 40-70°C. PCM’s are composed of a mixture of wax-like binders, fine particles of ceramic fillers, and, optionally, a supporting substrate, such as aluminum foil or a woven glass mesh. When phase change occurs, the liquid-like materials fill the voids on the surfaces and reduce the thermal resistance. When the temperature drops, the materials maintain their shapes and form a solid joint between the two surfaces.
 
Thermally Conductive Insulator(TIMs)
High-power thermal insulator pads are thermally interface materials designed for use where the highest possible thermal, dielectric, and mechanical properties are required.
 
Thermal Tape(TIMs)
Thermal tapes are also known as “thermally conductive double-sided adhesive tapes”. They are developed not only as a thermal interface material but also a means to eliminate mechanical attachment hardware. SinoGuide thermally conductive tape are formulated with acrylic or silicone based pressure sensitive adhesive (PSA) loaded with thermally conductive fillers. They are designed to securely bond heat sinks to power dissipating components without an additional clamping mechanism.

Thermal epoxies(TIMs)
Thermal epoxies, gels and solders provide other options to join heat sinks to components. Due to their good wetting properties, the thermal performances of these TIM’s are close to those  of thermal greases.


About SinoGuide:

A Global Leader in Thermal Management Through Technology, Innovation& Service. Utilising the latest converting technologies, we can customise materials to create non-standard roll widths and lengths, or convenient and easy to handle components. Customising your material offers a number of benefits, including cost savings and enhanced product design. Whatever your needs, we have the experience and capabilities to provide a complete solution, from design and prototyping to full production and automated assembly.

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Tel.:+86-755-89375091 Fax.:+86-755-89375092 E-mail: sales@sg-thermal.com
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