石家庄永恒建材有限公司

Contact

Company:Shijiazhuang Eternal Building Materials Limited Company
ADD:2604-1 Aerkadiya, PingAn Street and HePing Road, Shijiazhuang, Hebei, China PT:050000
Tell:0086-311-69032602
Fax:0086-311-85119401
Email:yonghengmaterial@vermiculite-china.com
wisdombai@vermiculite-china.com
yonghengstuff@vermiculite-china.com
yonghengmaterials@vermiculite-china.com
vermiculite-china@vermiculite-china.com

Mica is a thermal stable insulating material in the welding-rod coatings industries and also used in caulking compounds, lubricants, greases, dry-powder fire extinguishers, as a thin coating on rubber surfaces to overcome tackiness and sticking, In exterior house paints reduces running and sagging, and improves weatherability. The addition of mica to all types of sealers for porous surfaces (such as wallboard, masonry, and concrete blocks) greatly reduces penetration and improves holdout. The inclusion of mica in road and highway paints improves wearability, gives good adhesion, and reduces flaking and cracking, also used to coat wallpaper because it imparts an attractive silky or pearly luster, used predominantly in paint, plastics and rubber.
We supply muscovite, phlogopite, sericite, biotite and mica powder(dry mica powder and wet mica powder).

      

      

◆ Muscovite

Chemical components


Chemical composition
SiO2 Al2O3 K2O Fe2O3 CaO Na2O MgO H2O
Contents(%) 47.32 33.25 11.82 1.81 0.03 0.96 0.91 2.7

Physical properties:

Density (g/m3) Refractive index Whiteness (%) Moisture (%) Radius-thickness ratio Heat Resistance (° C) L.O.I. (%)
2.80 1.60 70-80 <1% >60 1300 2.82-2.9

◆ Phlogopite

Chemical components:


Components
SiO2 Al2O3 MgO K2O H2O
Contents% 36-45 10-17 19-27 7-10 <1

Physical properties:

Density(g/cm3) Transparency (%) Mosshardness Whiteness Refractive index Coefficient of elasticity (10 6Pa)
2.7-2.9 0-25.5 2.78-2.85 60-70 1.6-1.55 1394.5-1874

◆ Sericite

chemical components:

Components SiO2 Al2O3 K2O+Na2O H2O
Contents% 43.13~49.04 27.93~37.44 9~11 4.13~6.12

◆ Biotite

chemical components:


Components
SiO2 Al2O3 K2O MgO Na2O S P Burn
Contents% 45.02 10.46 10.18 16.88 0.46 2.43 0.34 1.93

◆mica powder

Wet mica powder physical and chemical indicators:


Size
Screen margin (%) Sand Content (%) Bulk density (g/cm3) Water content (%) Loss on Ignition (%) Whiteness Radius-thickness ratio
125um (120 mesh) 250um <0.1 125um <3.0 ≤1.0 ≤0.3  

≤1.0
 

≤4.3
 

>70
90um (160 mesh) 180um< 0.190um <5.0 ≤1.0 ≤0.25
75um (200 mesh) 150um< 0.1 75um <5.0 ≤0.6 ≤0.23
45um (325mesh) 112um< 0.145um <5.0 ≤0.5
38um (400mesh) 75um< 0.1 38um <5.0 ≤0.5

Dry mica powder physical and chemical indicators:


Size
Screen margin (%) Fe contents
1X10”
Sand Content (%) Bulk density (g/cm3) Water content (%) Whiteness Radius-thickness ratio
900um (20 mesh) ≤0.5 ≤400 ≤0.5 ≤3.0  

 

≤1.0
 

 

>60
 

 

>60
450um(40 mesh) ≤0.5 ≤400 ≤1.0 ≤3.0
300um(60 mesh) ≤0.5 ≤800 ≤1.0 ≤3.0
150um(100mesh) ≤0.5 ≤800 ≤1.0 ≤0.25
75um (200mesh) ≤1.0 ≤800 ≤1.0 ≤0.25
45um(325mesh) ≤2.0 ≤400 ≤1.0 ≤0.22
35um(400mesh) ≤5.0 ≤400 ≤0.5 ≤0.22
28um(500mesh) ≤5.0 ≤300 ≤0.5 ≤0.22
23um(600mesh) ≤5.0 ≤300 ≤0.5 ≤0.22
18um(800mesh) ≤10.0 ≤300 ≤0.5 ≤0.22
13um(1000mesh) ≤10.0 ≤300 ≤0.5 ≤0.22

Grain Size Distribution:

Size +20 +40 +60 +100 +200 +325 —325 Sand Content Iron Content
% PPM
20 mesh 5 70±5 25±5 ≤10 ≤5 ≤0.5 ≤100
40 mesh ≤1 55±5 40±5 ≤10 ≤1 ≤400
60 mesh ≤0.01 ≤1 45±5 45±5 ≤15 ≤1.5 ≤800
100 mesh ≤0.01 ≤1 35±5 35±5 ≤35 ≤1.5 ≤1000

Applications:

1. It can be used in cosmetic industry.
2. It is prior filler in paint and coating.
3. It is applied in protecting layer of welding rods, conducting wires and electric cables.
4. It is the basic raw material for mica porcelain products.
5. It can be used as suspended substance in fire-fighting dry powder.
6. It can be taken as filler, shelter, lubricating substance, a drawing of patterns in plastics, rubber, asbestos products and sealing materials.
7. It can also be used as filler in insulating materials of high-frequent electric waves and acid-durable products.
8. It can be used as coating in models of forecasting metal, the brightening material in aluminum and paint in electroplating.