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[Chemical Knowledge]：Properties and uses of pigments

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Pigments are widely used in the field of chemical production raw materials, and their properties and uses are different, which have an important impact on the quality and appearance of products. This article will detail several common pigment properties and uses.

1. the properties of pigments

1. Color properties The main properties of
pigments are color, and their colorful colors come from the absorption and reflection spectral characteristics of pigment molecules. Different pigment molecules have different absorption and reflection spectra, thus showing various colors. The color properties of pigments are very important for toning and color matching in chemical production.

2. Light Resistance The light resistance of a
pigment refers to its stability under light conditions. Some pigments will fade or change color under long-term light, while some pigments have better light resistance and can maintain color stability. In the production of chemical products, it is necessary to select suitable pigments according to the use environment and light conditions of the product.

3. Heat Resistance The heat resistance of the
pigment refers to its stability under high temperature conditions. Some pigments will decompose or change color at high temperature, while some pigments have good heat resistance and can maintain color stability at high temperature. In the production of chemical products, it is necessary to select suitable pigments according to the processing temperature and use temperature of the product.

4. Dispersibility The dispersibility of a
pigment refers to the degree of dispersion thereof in a medium. Good dispersion can ensure the uniform distribution of pigments in chemicals and improve the quality and appearance of products. In the production of chemical products, it is necessary to select pigments with good dispersibility and ensure uniform dispersion of pigments through reasonable processing techniques.

2. pigment use

1. colorant
pigment in the chemical production of the main use is as a colorant, give the product a variety of colors. Different chemical products require different colors and colors, and pigments can be matched and toned according to the needs to meet the appearance requirements of the product.

2. Functional additive
In addition to being used as a colorant, pigments can also be used as functional additives to improve the performance of chemical products. For example, some pigments have sunscreen, antioxidant, flame retardant and other functions, which can be added to the corresponding chemical products to improve the stability and safety of the products.

In short, pigments, as an important part of chemical production raw materials, have an important impact on the quality and appearance of products. Understanding the properties and uses of pigments is of great significance for selecting suitable pigments and improving product quality.

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