Search results
Results from the WOW.Com Content Network
Thermochromic coating modulate their reflectance as a function of their temperature, making them an appropriate solution for combating cooling loads, without diminishing the building's thermal performance during the winter period. [18] Thermochromic materials are categorized into two subgroups, dye-based and non-dye-based thermochromic ...
The spiro form of an oxazine is a colorless leuco dye; the conjugated system of the oxazine and another aromatic part of the molecule is separated by an sp 3-hybridized "spiro" carbon.
A liquid crystal thermometer, temperature strip or plastic strip thermometer is a type of thermometer that contains heat-sensitive (thermochromic) liquid crystals in a plastic strip that change colour to indicate different temperatures. [1] Liquid crystals possess the mechanical properties of a liquid, but have the optical properties of a ...
Thermochromic ink (also called thermochromatic ink) is a type of dye that changes color in response to a change in temperature. [ 1 ] [ 2 ] [ 3 ] It was first used in the 1970s in novelty toys like mood rings, but has found some practical uses in things such as thermometers, product packaging, and pens. [ 4 ]
In chemistry, chromism is a process that induces a change, often reversible, in the colors of compounds.In most cases, chromism is based on a change in the electron states of molecules, especially the π- or d-electron state, so this phenomenon is induced by various external stimuli which can alter the electron density of substances.
A thermal printer Bills and receipts are typically printed on thermal paper. [1]Thermal printing (or direct thermal printing) is a digital printing process which produces a printed image by passing paper with a thermochromic coating, commonly known as thermal paper, over a print head consisting of tiny electrically heated elements.
The formula of the material used usually approaches Pb 1.1 (Zr 0.3 Ti 0.7)O 3 (called lead zirconate titanate 30/70). Its properties may be modified by doping it with lanthanum , resulting in lanthanum-doped lead zirconium titanate ( lead zirconate titanate , also called lead lanthanum zirconium titanate ), with formula Pb 0.83 La 0.17 (Zr 0.3 ...
Tetrasulfur tetranitride is an inorganic compound with the formula S 4 N 4.This vivid orange, opaque, crystalline explosive is the most important binary sulfur nitride, which are compounds that contain only the elements sulfur and nitrogen.