Product Description
Wollastonite is partial chain silicate, crystal structure determines its properties, wollastonite crystals parallel to (100) complete dissociation, parallel to (001) and (102) cleavage are more obvious, So even the small particles, also showed a fibrous or needle.
Because of its special crystal form, and also has a high whiteness, good dielectric properties and high heat resistance, which is widely used in wollastonite ceramics, chemical industry, metallurgy, paper, plastics, paint and other areas with a special needle-like wollastonite powder processed powder, modified by the surface activation, in rubber, plastics, coatings showed a substantial increase in the amount of positive trends.
Acicular wollastonite fiber powder series products are mainly physical and chemical indicators
As follows:
Acicular wollastonite fiber powder natural state is a white powder, non-toxic, odorless,
Pollution, no radiation.
1. Physical properties: specific gravity 2.7-2.9, hardness (Mohs) 4.5-4.7, thermal expansion
Number of 6.5 × 10-6 ° -1, the refractive index of 1.63, melting point 1540 ℃, oil absorption ≥ 25,
Aspect ratio (aspect ratio) 15-20:1, sedimentation 60-90.
2. Chemical properties: molecular formula: CaSiO3 main chemical composition (%）
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