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wollastonite powder

China

60section

85 / Ton 获取最新报价

dalian

85 per Ton

10 Ton

container

30days

600 Ton per Month

T/T, L/C, D/A, Western Union

-

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产品规格

Type : - Brand Name : -

详情

Wollastonite powder for ceramics
1. used as an asbestos fibre substitute
2.used as a general filler

Wollastonite powder for ceramics is calcium silicate (CaSiO3) which forms as aggregates of needle-shaped crystals. Crystals with high aspect ratio (long needle shapes) are used as an asbestos fibre substitute, and for reinforcing in thermoplastics and thermoset polymers. Wollastonite with a low aspect ratio is used as a general filler, and in some ceramic bodies where its low coefficient of thermal expansion reduces shrinkage, cracking, and crazing.
 

The physical properties and chemical components :

 

PHYSICAL PROPERTY

CHEMICAL COMPONENT

Coefficient of expansionmm/mm/

6.0×106

SiO2

50%min

Refractive index

1.63

CaO

46%min

Melting point

1450

Fe2O3

0.3%max

hardness

4.55.0

AL2O3

0.46%max

Specific Gravity

2.91

MgO

0.60%max

Whiteness

8892

MnO

0.02%max

PH(10% slurry)

9.8

TiO2

0.02%max

Aspect Ratio

联系我们

联系人: yuyan

公司名称:PATHFINDER INTERNATIONAL EXPORT CO, .LTP

办公地址:CHANGJIANG, Dalian, Liaoning, China,116001

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