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ProductsSuperfine active heavy calcium carbonate
Chemical name: Activated natural calcium carbonate
Molecular formula: CaCO3
Property: White fine powder, particle surface is covered by active substances, more easily dispersed in organic matter than ordinary heavy or light calcium carbonate without active treatment, better lipophilic, fully miscible in organic materials.
Ultra-fine activated ground calcium carbonate is an important filling material for plastics, rubber and coating industries. It can reduce cost, improve processing and improve quality performance. It can be used for thermoplastic plastics such as polyvinyl chloride and polyolefin, and for synthetic resin adhesives such as vinyl acetate to improve fluidity, shrinkage and curing speed.
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Item |
Index |
|||
|
GR3000 |
GR2500 |
GR2000 |
GR1500 |
|
|
Calcium carbonate % ≥ |
96 |
96 |
95 |
95 |
|
Iron oxide % ≤ |
0.2 |
0.2 |
0.2 |
0.2 |
|
Silicon dioxide % ≤ |
0.3 |
0.3 |
0.3 |
0.3 |
|
PH Value > |
8-10 |
8-10 |
8-10 |
8-10 |
|
Volatile matter at 105℃ % ≤ |
0.35 |
0.35 |
0.4 |
0.4 |
|
True specific gravity |
2.7 |
2.7 |
2.7 |
2.7 |
|
Apparent specific gravity |
0.35 |
0.38 |
0.43 |
0.51 |
|
Oil absorption g/100g ≤ |
28 |
25 |
24 |
22 |
|
Particle size: D50μm |
3.5 |
4.5 |
5.5 |
6.5 |
|
7.0 |
9.0 |
11.0 |
12 |
|
|
Whiteness ≥ |
95 |
95 |
94 |
94 |
