ACICULAR WOLLASTONITE HD-TYPE:
HD series wollastonite powder is classified according to particle size.
According to the requirements of D50, we divide wollastonite into
HD-5 (D50:5 micron),
HD-10 (D50:10 micron),
HD-15 (D50:15 micron),
HD-45 (D50:45 micron) and so on.
The finest type is D50:5 micron, with a mesh close to 2500 mesh.
According to the difference of L.O.I., product is divided into grade A: L.O.I. 3% Max and grade B: L.O.I. 5.0% max..
Usage:
1. Instead of asbestos, it is used as reinforcing material in automobile friction material.
2. Instead of glass fiber, it can greatly enhance the strength of FRP in FRP industry. Reduce the cost of FRP and improve the competitiveness of products.
3. It is used as reinforcing agent in building materials, fireproofing boards, calcium silicate boards, rubber and plastics. It can improve the heat resistance, fire resistance and mechanical properties of products.
4. Mineral filler. It is widely used in plastic, rubber, paint, coating and paper making industry to make functional filler, which can improve product strength, aging resistance and crack free.
HDA-5 Specification for reference:
Item | Unit | Result |
D10 | μm | 1.658 |
D50 | μm | 5.107 |
D90 | μm | 18.32 |
Average Fiber Length | μm | 65.1 |
Average Fiber Diameter | μm | 5.4 |
Average Aspect Ratio(L/D) | μm | 12:1 |
Item | Unit | Result |
二氧化硅 SiO2 | % | 50.59 |
氧化钙 CaO | % | 44.61 |
三氧化二铁 Fe2O3 | % | 0.33 |
三氧化二铝 Al2O3 | % | 0.57 |
氧化镁 MgO | % | 0.10 |
氧化锰 MnO | % | 0.32 |
水分 H2O | % | 0.05 |
烧失量 L.O.I | % | 3.35 |
PH VALUE(10% slurry) | - | 9.7 |
