Product Announcement from LCR Hallcrest


 Research and Test Kits-Image

Thermochromic liquid crystals (TLC's) react to changes in temperature by changing color. TLC's have Chiral (twisted) molecular structures and are optically active. Direct white light is selectively reflected by the expansion and contraction of the helix with change in temperature.

There are two basic forms of TLC's available.

Temperature sensitive TLC's selectively reflect the visible spectrum of light at a desired temperature with red, green, and blue acting as the three main reflection colors. Temperature Sensitive TLC's are available in the temperature range of -30°C to 120°C.

Temperature Insensitive (also known as shear sensitive) reflect one color of light until its clearing point (isotropic) temperature is reached. This type of TLC changes color with shear.

Applications include but are not limited to the following:

  • Heat Transfer Studies
  • Thermal mapping
  • Flow visualization studies
  • Non Destructive Testing

TLC's are available in a number of forms with each formulation having unique properties.

 
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