Categories | Wollastonite Powder |
---|---|
Brand Name: | H&G |
Model Number: | HGWD-325 |
Place of Origin: | CHINA |
MOQ: | 2000KGS |
Payment Terms: | L/C, T/T |
Supply Ability: | 1000 Tons/Month |
Delivery Time: | 15 -20 working days |
Packaging Details: | 25 Kgs/Bag, 1000Kgs/Bag or Customization |
product name: | High Quality Wollastonite Powder(Calcium metasilicate) |
Formula: | CaSiO3 |
Usage: | Engineering technical plastics Fluoro elastomer e.g. for oil sealing heat-resistant refractory ceramics metallurgy wood composites adhesives filler in paint, paper and other products friction products such as brake pads |
Future: | noticeable acicular and long fiber |
Size: | Mesh-325,Mesh-1000,Mesh-1250,Mesh-2000 |
Color: | White |
shape: | Powder |
Leading Time: | 15 working days |
Grade:HGWD-325
Product:High Quality Wollastonite Powder(Calcium metasilicate)
Decriptions
Wollastonite
Wollastonite is a calcium inosilicate mineral (CaSiO3) with a
theoretical makeup of approximately 48% calcium oxide and 52%
silicon dioxide. Wollastonite is usually white in color. It may
contain small amounts of iron, magnesium, and manganese which can
give it a grey, red, or brown tint.
Wollatonite is Widely used in plastics, rubber, asbestos
substitutes, paint coatings and other fields, it can increase the
hardness, flexural strength, impact resistance of products, improve
the electrical properties of materials, improve thermal stability
and dimensional stability, and is the most promising application
field. It is also used in the ceramics and metallurgical
industries. The SiO2 and CaO components in wollastonite provide low
expansion rate and good thermal shock resistance.
Properties
Item | Mesh-325 | Mesh-325 | Mesh-1000 | Mesh-1250 | Mesh-2000 | Mesh-2500 | Mesh-3000 |
Density g/cm3 | 2.8-2.9 | 2.8-2.9 | 2.8-2.9 | 2.8-2.9 | 2.8-2.9 | 2.8-2.9 | 2.8-2.9 |
Mohs Hardness | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
Whiteness (R45T%) | 88±2 | 88±2 | 88±2 | 88±2 | 88±2 | 88±2 | 88±2 |
Oil Absorption Rate (ml/100g) | 50 | ≦55 | ≦55 | ≦55 | ≦55 | ≦55 | ≦55 |
Particle Size | D50(um) | D50(um) | D50(um) | D50(um) | D50(um) | D50(um) | D50(um) |
Refractive Index | 1.63 | 1.63 | 1.63 | 1.63 | 1.63 | 1.63 | 1.63 |
PH | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 |
Coefficient of expansion(mm/mm/℃) | 6.5 x 10-6 | 6.5 x 10-6 | 6.5 x 10-6 | 6.5 x 10-6 | 6.5 x 10-6 | 6.5 x 10-6 | 6.5 x 10-6 |
Aspect Ratio | 3.1-6.1 | 3.1-6.1 | 3.1-6.1 | 3.1-6.1 | 3.1-6.1 | 3.1-6.1 | 3.1-6.1 |
Melting Point | 1540 | 1540 | 1540 | 1540 | 1540 | 1540 | 1540 |
Chemical Properties | |||||||
Fe2O3 | 0.38% | 0.38% | 0.38% | 0.38% | 0.38% | 0.38% | 0.38% |
Al2O3 | 0.32% | 0.32% | 0.32% | 0.32% | 0.32% | 0.32% | 0.32% |
CaO | 45.70% | 45.70% | 45.70% | 45.70% | 45.70% | 45.70% | 45.70% |
MgO | 1.39% | 1.39% | 1.39% | 1.39% | 1.39% | 1.39% | 1.39% |
SiO2 | 50.61% | 50.61% | 50.61% | 50.61% | 50.61% | 50.61% | 50.61% |
L.O.I | 1.41 | 1.41 | 1.41 | 1.41 | 1.41 | 1.41 | 1.41 |
Remark:The properties can be customized according with client’s requirements.
Application
Wollastonite is used for many different industrial purposes,
including the production of:
Engineering technical plastics
Fluoro elastomer e.g. for oil sealing
heat-resistant refractory ceramics
metallurgy
wood composites
adhesives
filler in paint, paper and other products
friction products such as brake pads
Advantages
a. good compatibility.
b. Excellent Stability and products meets clients requirement
absolutely
c. Excellent performance on physical properties
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