1、 Product Introduction
1. High quality fiber Wollastonite Wollastonite after powder processing has a high aspect ratio (15-20:1). Because wollastonite has fibrous and needle like structure, bright and white color, natural low iron, micro sulfur, phosphorus without crystal water, high melting point, corrosion resistance, aging resistance, small thermal expansion coefficient, high refractive index, good reinforcement, sealing, heat resistance, wear resistance and stability.
2. Process: strictly select raw ore - cleaning - grinding - airflow classification - detection center - qualified ex warehouse
2、 Product index items
Specification model/index item Needle shaped wollastonite powder
SiO2 content% ≤ 49
CaO content% ≥ 46
Whiteness ≥ 90
PH value (10% suspension) 8
Mohs hardness 5.5
Melting point ℃ 1540
Refractive coefficient 1.63
Specific gravity 2.75
Length diameter ratio 15-20:1
Appearance white powder
3、 Product application field
Widely used in composite materials (electronic components, packaging materials, high-performance rubber products, automobile shells, molds) coating 、 ceramics , metallurgy, plastics, rubber, chemical industry, papermaking Electric welding Strip, friction material Insulating material , thermal insulation materials, metallurgical protective slag and asbestos substitutes.
4、 Main functions of the product
It can partially replace glass fiber, plant fiber, and pulp fiber as the reinforcement of polymer composites, improve material performance, increase weight and strengthen, and reduce production costs. Needle shaped wollastonite has stronger reinforcement performance than ordinary wollastonite powder, and is used as a framework in the product
