Do you know all uses of wollastonite?-４ BY:Danny

What are the main types of wollastonite The main types of wollastonite include the following:

7. Used for preparing bioactive materials
Artificial bone is usually made by coating a layer of biologically active ceramic material on the surface of titanium alloy. The high strength and good toughness of this artificial bone are its advantages, but its composition differs greatly from that of human bone tissue, making it difficult to achieve true healing and prone to corrosion. Many scholars' studies have shown that bioceramics prepared from wollastonite as the main raw material have high biological activity, high strength, good stability, and good compatibility with human bone tissue, and are expected to be applied in the field of artificial bone. Japanese scholars have used Bis GMA (Bisphenel - α - glycylmethacrylate) resin as an organic matrix material and selected three inorganic fillers, namely apatite wollastonite (AW), hydroxyapatite (HA), and β - tricalcium phosphate (β - TCP), to compare and study the compatibility and bonding state between the prepared adhesive powder and real bone tissue. The results showed that two weeks after AWC tibial transplantation, the unhealed Bis GMA based resin surface layer was completely filled with newly generated bone like tissue, and AW glass ceramic particles were surrounded by bone tissue and tightly bonded to bone tissue through apatite, without the appearance of intermediate soft tissue; The other two types of adhesive powders have good biocompatibility, but require a longer time.

8. Raw materials for the preparation of white carbon black

White carbon black is an artificially synthesized amorphous silica ultrafine particle (particle ≤ 0.3 μ m), which has acid resistance, alkali resistance, high temperature resistance, as well as good electrical insulation and dispersion properties. It is widely used as a reinforcing agent, filler, covering agent, and thickening and anti settling agent for high-end rubber, sealant, paper, plastic, cable, and coating ink. SiO2 with high specific surface area has a honeycomb like porous structure, which can be used as a new catalyst carrier, selective adsorbent, and aviation insulation material in high-tech fields. The purity of calcium silicate in wollastonite can reach over 94%, with few impurities and solubility in hydrochloric acid, making it an ideal raw material for preparing white carbon black

9. Other uses

Wollastonite combined with a small amount of auxiliary materials can be used to produce silicon fertilizer, which is indispensable for the growth and development of rice. Wollastonite welding electrode coating can effectively suppress discharge during welding, improve melt flowability, make the weld neat and beautiful, and enhance mechanical strength. In addition, wollastonite has development prospects in composite materials, glass fiber reinforced plastics, asbestos products, biogas digesters, foam sponge, white cement, paper making and other products. Wollastonite is one of the few irregular minerals with many excellent properties, which can adapt to various industrial applications and will be widely used in future industries. The industry should continuously improve its physical and chemical properties, such as emphasizing the deep processing of wollastonite, especially the development of modified high aspect ratio wollastonite products; Expand the application of wollastonite in fields such as plastics, high-quality paints and coatings, friction, and bioactive materials; Pay attention to the development of equipment and processes suitable for the production of high aspect ratio wollastonite; Study the synergistic effect of mixed particles of wollastonite, mica, kaolin, quartz, talc, etc. in polymer composites to improve the overall performance of the materials. Expanding its application areas and increasing its market capacity are the key focuses of future work.

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