The color-changing principle and structure of reversible thermochromic pigments

Reversible temperature-sensitiveColor-changing pigmentThe color-changing principle and structure of:

The temperature-sensitive color-changing pigment is a microcapsule that repeatedly changes color as the temperature rises or falls.

The reversible temperature-sensitive color-changing pigment is prepared by the electron transfer type organic compound system. The electron transfer type organic compound is a type of organic chromophore system with a special chemical structure. At a specific temperature, the molecular structure of the organic compound changes due to electron transfer, thereby achieving color transformation. This color-changing substance is not only bright in color, but also can achieve color changes from "colored === colorless" and "colorless === colored" states, which is not possessed by heavy metal complex salt complex type and liquid crystal type reversible temperature-sensitive color-changing substances.Pearlescent pigment, Color-changing pigmentFluorescent pigment

The microencapsulated reversible temperature-sensitive color-changing substance is called reversible temperature-sensitive color-changing pigment (commonly known as:Temperature-changing pigment, Temperature-sensitive powder orTemperature-changing powder). The particles of this pigment are spherical in shape, with an average diameter of 2 to 7 microns (one micron is equal to one thousandth of a millimeter). Its interior is the color-changing substance, and the exterior is a transparent shell about 0.2 to 0.5 microns thick that neither dissolves nor melts. It is precisely this that protects the color-changing substance from the erosion of other chemical substances. Therefore, it is very important to avoid damaging this shell during use.