American Honeywell announced plans to develop a new series of phase-change thermal management materials (phase-changing thermal management material), may, by use of phase change element to enhance heat dissipation efficiency, thus to extend the display backlight, solid state lighting applications, LED array of life.
The Honeywell LTM6300-SP series of phase-change material is a polymer matrix (polymer matrix), can replace the traditional mass production, but it will be aging at a high temperature silicone substrate, embedded into the thermal conductivity of metal. Honeywell Electronic Materials (HEM) chief technology officer Brian Daniels said that the kinds of thermal management materials can improve the efficacy of LED performance, extend its life and ensure its dark color will not overheat and Dan.
"As LED are semiconductors, so high-power LED arrays will require thermal management materials produced in response to heat, while the LTM6300-SP series is a way through the phase change to achieve." Daniels said.
This HEM for a variety of LED lighting applications developed by the first phase change materials, their special appeal lies in its ability to react against the heat conducted from the solid-state to a more flexible type of liquid (liquid-like) that can control the phase-change, and therefore When the system temperature to enhance heat dissipation. This may result in diminished brightness LED in advance, color change or even harmful burning heat, the rate of temperature rise will be taken away from the LED semiconductor components.
LTM6300-SP within the polymer matrix filled with micron (micron) size of the thermal conductivity of metal particles, but due to commercial confidentiality, Honeywell did not disclose its exact size. The cooling principle is material softening in the temperature rises, this time inside the metal particles are forced to touch the LED directly to the heat source, so the heat conduction to the material, and then improved heat dissipation.
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