Introduction to High Quality Wollastonite

Wollastonite is a triclinic system, thin plate-like crystals, and the aggregates are radial or fibrous. The color is white, sometimes with light gray, light red tones. Vitreous luster and pearl luster on the cleavage surface. The hardness is 4.5～5.5, and the density is 2.75～3.10g/cm3. Completely soluble in concentrated hydrochloric acid. Under normal circumstances, it is resistant to acid, alkali and chemical corrosion. Hygroscopicity is less than 4%. Low oil absorption, low conductivity and good insulation. Wollastonite is a typical metamorphic mineral, mainly produced in the contact zone between acid rock and limestone, and coexists with fushan stone and garnet. Also found in deep metamorphic calcareous crystalline schist, volcanic eruptions and some alkaline rocks. Wollastonite is an inorganic needle-like mineral, which is characterized by non-toxicity, chemical corrosion resistance, good thermal stability and dimensional stability, glass and pearl luster, low water absorption and oil absorption value, excellent mechanical and electrical properties, and certain properties. Reinforcing effect. The role of wollastonite powder.

Due to the improvement of processing methods and the acquisition of ultra-fine particles, potential new uses are being discovered one after another, making wollastonite more and more widely used. According to the forecast of foreign experts, the proportion of wollastonite application fields in the future is as follows: 6% in the ceramic industry and related departments; 22% in coatings, plastics and decorative materials; 5% in asbestos substitutes; 12% in insulating ceramic foam for electrical insulating items ; 6% insulating ceramic foam for construction; 2% ceramic foam for refractory insulating layer; 4% ceramic foam for foundry production; 3% slag concrete block surface coating; 40% for paper production.

Basic classification

Folding coating grade wollastonite powder

It has a good reinforcement, which can not only improve the toughness and durability of the coating, but also keep the coating surface smooth and good gloss. Moreover, it improves the resistance to scrubbing and weathering, reduces the oil absorption of coatings and inks, maintains alkalinity, and has anti-corrosion capabilities. Can get high-quality bright color paint, and has good leveling and anti-aging properties. The coating can get better mechanical strength, increase durability, enhance adhesion and corrosion resistance. There is also good coverage and adhesion.

Folded Plastic Rubber Grade Wollastonite

With unique needle-like fibers, it has good insulation, wear resistance, and high refractive index. It is a good filling material for plastic and rubber products. Features and performance: Wollastonite powder can improve impact strength, enhance fluidity and improve tensile strength, impact strength, linear tensile and mold shrinkage.

Folding friction grade wollastonite powder

It is a special needle-like structure with unique physical and mechanical properties of wollastonite. Greatly enhances the friction resistance and heat resistance of the finished product. When the product is filled into it, the friction flexibility and stability can be improved.

Folding paper grade wollastonite powder

After special processing technology, it can still maintain its unique needle-like structure, so that the white board paper with wollastonite powder can improve its whiteness, opacity (surface layer coverage), flatness, smoothness, adaptability, reduce Quantitative transverse difference and wet deformation of cardboard, improve printing adaptability, and can greatly reduce the use of various other raw materials, and reduce the cost of paper products in general.

Folding building materials grade wollastonite powder

It is a kind of non-toxic, odorless, non-radioactive and other advantages that gradually replace asbestos which is harmful to human health, and become a new raw material for environmental protection building materials in the new century. After special processing technology, it can still maintain its unique needle-like structure, which greatly improves the impact resistance, bending strength and wear resistance of materials such as silicon calcium board and fireproof board with wollastonite acicular powder. In the field of building materials, wollastonite will be more widely used!

Folded ceramic grade wollastonite powder

Adding an appropriate amount of wollastonite powder to the ceramic raw materials can greatly reduce the sintering temperature, shorten the sintering time, and realize low-temperature and rapid one-time sintering. It saves a lot of fuel and significantly reduces the cost of the product; at the same time, it improves the mechanical properties of the product, reduces the crack and warpage of the product, increases the luster of the glaze, and improves the strength of the embryo body, thereby improving the qualification rate of the product.