Wollastonite

Because of its unique physical and chemical properties, it has been widely used in many fields. The following is a detailed summary of the use of wollastonite:

First, the paper industry

Wollastonite is used as a filler in the paper industry, which can significantly improve the whiteness, opacity (surface coverage), flatness, smoothness and adaptability of paper. At the same time, it can also reduce quantitative transverse error and cardboard wet deformation, improve printing adaptability, and can greatly reduce the use of various other raw materials, reducing the overall cost of paper products.

Second,Ceramic industry

Adding an appropriate amount of wollastonite powder to ceramic raw materials can greatly reduce the firing temperature, shorten the firing time, and achieve a low temperature and rapid one-time firing, thus saving fuel and significantly reducing product costs. In addition, wollastonite can also improve the mechanical properties of the product, reduce the cracks and warping of the product, increase the gloss of the glaze, improve the strength of the body, and then improve the pass rate of the product.

Third, plastics and rubber industry

Wollastonite has a unique needle-like fiber structure, good insulation, wear resistance and high refractive index, and is a good filling material for plastic and rubber products. It can improve the impact strength, fluidity, tensile strength and mold shrinkage of plastic and rubber products. At the same time, wollastonite can also enhance the friction resistance and heat resistance of the product, and improve the friction flexibility and stability.

Fourth, paint industry

Wollastonite is used as a functional filler in the coating industry, which can effectively improve the washing resistance and weathering resistance of the coating, as well as the mechanical strength of the coating film. At the same time, it can also enhance the corrosion resistance, weather resistance and heat resistance of the coating. The needle-like crystal structure of wollastonite makes it a good smoothing agent for coating, which can improve the leveling property of coating and the wear resistance and durability of coating film.

Fifth. Metallurgical industry

Wollastonite is used as a flux in metallurgical industry, which has the advantages of stable performance, wide adaptability, no crystal water, small firing loss, strong ability to adsorb and dissolve inclusions. Compared with non-wollastonite slag, the metallurgical slag with wollastonite as the base material has better process stability and metallurgical function, and can improve the production quality and efficiency of continuous casting.

Sixth. Other industries

1. Asbestos substitutes: wollastonite has the advantages of non-toxic, tasteless, non-radioactive, etc., which can gradually replace asbestos harmful to human health and become a new raw material for environmental protection building materials. After special processing technology, wollastonite can maintain its unique needle-like structure, which greatly improves the impact resistance, bending strength and wear strength of the materials such as calcium silicate board and fire-proof board added with wollastonite needle-like powder.

2. Electrode: wollastonite can be used as electrode coating ingredient, which can play the role of melting and slagging additive, inhibit the discharge during welding, reduce spatter, improve the fluidity of slag, make the weld forming clean and beautiful, and enhance mechanical strength.

3. Building materials: wollastonite can be used for the production of building panels such as silicon calcium panels, and added to cement for building roof panels and sewer pipes.

4. Silicon fertilizer: wollastonite with a small amount of auxiliary materials can be made into an indispensable silicon fertilizer for rice growth and development, which can both improve rice yield and effectively reduce the accumulation of cadmium in rice.

5. Wastewater treatment: The surface properties of wollastonite particles can be used to remove harmful impurity ions in water to achieve the purpose of purifying water quality.

6. Polishing materials: wollastonite and rare earth oxides are mixed according to the appropriate proportion, and can be made into advanced polishing materials through chemical and physical processing.

In summary, because of its unique physical and chemical properties, wollastonite has a wide range of applications in paper, ceramics, plastics, rubber, coatings, metallurgy and other fields, and with the improvement of processing methods and the discovery of potential new uses, the use of wollastonite will continue to expand.