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[Chemical Knowledge]：Properties and uses of pigments and fillers

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The nature and use
of pigments and fillers in the field of raw materials for chemical production
1. Introduction

In the production of chemical products, pigments and fillers are an indispensable part. They play an important role in improving the appearance quality, physical properties and chemical stability of products. In this paper, the properties of pigments and fillers and their use in the field of raw materials for chemical production will be introduced in detail.

2. the nature of the pigment filler

1. color properties: the main nature of the pigment filler is its color. Different pigments and fillers have different colors, including inorganic pigments, organic pigments and special effect pigments.
2. Physical properties: Pigments and fillers also have a series of physical properties, such as particle size distribution, specific surface area, density, melting point, boiling point, etc. These properties have an important influence on the dispersion, fluidity and hiding power of pigments and fillers.
3. Chemical properties: The chemical properties of pigments and fillers include acid and alkali resistance, oxidation resistance, light resistance, thermal stability, etc. These properties determine the applicability and stability of pigments and fillers in different chemicals. The use of

3. pigments and fillers

in the field of chemical production raw materials, pigments and fillers are widely used in the following aspects:

1. plastic industry: pigments and fillers can be used to improve the appearance quality of plastics, give plastics a variety of colors, and improve its weather resistance, heat resistance, chemical resistance and other properties.
2. Coating industry: Pigment and filler is an important part of the coating, which can improve the covering power, weather resistance, chemical resistance, etc. of the coating, and give the coating a variety of colors and effects.
3. Ink industry: Pigments and fillers play the role of color development and filling in the ink, which can improve the printing performance and color fullness of the ink.
4. Paper industry: Pigment fillers can be used in the papermaking process to improve the whiteness, opacity and color of the paper, and improve the physical and chemical properties of the paper.

4. common types of pigments and fillers and their properties and uses

1. inorganic pigments: inorganic pigments have excellent heat resistance, light resistance and weather resistance, widely used in plastics, coatings and inks and other industries. Common inorganic pigments include iron oxide red, iron oxide yellow, titanium dioxide, etc.
2. organic pigments: organic pigments with bright colors and good tinting strength, widely used in plastics, coatings, inks and paper industries. Common organic pigments include azo pigments, phthalocyanine pigments, and the like.
3. body pigment: body pigment has good hiding power and filling, commonly used in coatings and inks to improve the physical properties of products. Common body pigments include calcium carbonate, talc and the like.
4. Special effect pigments: Special effect pigments have unique optical effects, such as metallic luster, pearlescent effect, etc., and are often used in high-end fields such as cosmetics and automotive coatings.

5. conclusion

pigments and fillers are widely used in the field of chemical production raw materials, and play an important role in improving the appearance quality and performance of products. Different types of pigments and fillers have different properties and uses, and it is of great significance to select suitable pigments and fillers to improve the quality and production efficiency of chemical products.

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