Information AboutGel |
| CATEGORIES ABOUT GEL | |
| physical chemistry | |
| gels | |
| SHOPPER'S DELIGHT | |
In Optical Filters and theatrical lighting a Color Gel is a transparent or translucent colored panel used to change the color of transmitted light. A gel (from the Lat. ''gelu''—freezing, cold, ice or ''gelatus''—frozen, immobile) is an apparently solid, jelly-like material formed from a Colloid al solution. By weight, gels are mostly liquid, yet they behave like solids. An example is Gelatin . Many gels display Thixotropy - they become fluid when agitated, but resolidify when resting. By replacing the liquid with gas it is possible to prepare Aerogel s, materials with exceptional properties like very low density, very high surface area, and excellent thermal insulation properties. In 2005 a Sound Induced Gelation effect was demonstrated. APPLICATIONS Many substances can form gels when a suitable Thickener or Gelling Agent is added to their formula. This approach is common in manufacture of wide range of products, from foods to paints, adhesives. Gels are a mixture of a solid and a liquid. In and from the FAA Glossary Of Optical Communications Terms SEE ALSO
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