Product Details

China factory SIO2 high purity high quality white ultrafine silica powder as nano materials at best price

Place of Origin China
Purity 2N
Type Silica Powder
Application Surface coating

Product Features

Product Description

Ultrafine silica powder is a kind of inorganic nonmetallic mineral functional powder material, which is made of natural quartz ore, fused silica and so on. It is finely processed by color selection, acid leaching, flotation, magnetic separation, grinding and precision classification. It has fine particles, no large particles, good suspension and narrow particle size distribution. The specific surface area is large, the settlement resistance is good, and has certain reinforcing effect. It also has excellent properties such as acid and alkali corrosion resistance, poor thermal conductivity, high insulation, low expansion and high purity.

Application

widely used in electronic materials, electrical insulation materials, paint coatings, ink, silicone rubber, mixed silicone rubber, plastics (plastic film, plastic particles), functional rubber, sole rubber, chemical materials, nano-materials, integrated circuit (IC) plastic sealing materials and filling materials, precision casting, precision ceramics, adhesive, military defense and other fields.


Main features:

1. Fine particle size, no large particles, high purity, good whiteness and uniform particle size distribution.

2, Low ion content, low conductivity, excellent electrical insulation.

3. Stable chemical properties, no reaction with any other substances except hydrofluoric acid and strong base.

4, Good suspension, good settlement resistance.

5, Acid and alkali resistance, high temperature resistance, good insulation performance.

6,High wear resistance, improve the scratch resistance to coating.


Technical Data Sheet

Item

Unit

Standard Scope

Typical Values 

 Appearance

-

White powder

3000mesh

SiO2

%

99%-99.8%

99.4

Mean Grain         size

µm

2-8

3.082

Whiteness

%

90-98

93

Fe2O3

%

≤0.03

0.008

Conductivity

Us/cm

5-30

16

PH value


6.5-8.0

7.2

Moisture

%

0.02-0.1

0.08

BET(SSA)

/kg

7000-10000

9926

Density

g/cm3

2.65

2.65

Moh's hardness


6.5-7

7

Melting point

1750

1750

We can produce 1250-6000 mesh   products with different specifications according to customer requirements.



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