Conditions of use of thermochromic pigments

Conditions of use of thermochromic pigments:

The reversible thermochromic pigment itself is an unstable system (stability is difficult to change), so its light resistance, heat resistance, aging resistance and other properties are far inferior to ordinary pigments, and attention should be paid in use. Pearlescent pigments, color changing pigments, fluorescent pigments

1. Light resistance:

Thermochromic pigments have poor light resistance and will quickly fade and become invalid under strong sunlight, so they are only suitable for indoor use. Avoid strong sunlight and ultraviolet light, which will help extend the life of the color-changing pigment.

2. Heat resistance:

Thermochromic pigments can withstand high temperatures of 230°C in a short time (about 10 minutes), and can be used for injection molding and high temperature curing. However, the thermal stability of the color-changing pigments is different in the color-developing state and the achromatic state, and the stability of the former is higher than that of the latter. In addition, when the temperature is higher than 80°C, the organic matter constituting the discoloration system will also begin to degrade. Therefore, color-changing pigments should avoid long-term working at temperatures higher than 75°C.