FUCHANG CHEMICAL
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OF SILICON DIOXIDE

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Precipitated Silica Fusil® SDP21

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Product Description
Parameters
TDS
SDS
Aerage particle size/D50:
BET:
Physical form:
DBP:
FUSIL ® SDP21
 

Fusil® SDP21 is precipitated silica with special physical and chemical properties so that it becomes the reinforcing additive with best transparency in the blends formula that takes rubber as matrix. It has stronger reinforcing performance than ordinary precipitated silica in the rubber industry, especially in the silicone rubber industry, it can greatly improve the properties of aging resistance, rebound resilience and compressive deformation resistance.

 

Parameter

Product Series

 

Silicone rubber and thermal insulation

material grade

Type

 

FUSIL®-SDP21

Physical Form

 

Powder

D50

um

8

BET

m2/g

200~220

DBP

cm/g

2.2~3.5

Silica (dry basis)

%

≥98

Drying Loss

%

4.0~8.0

Ignition loss (dry basis)

%

≤7.0

pH(10% aqueous solution)

 

6.0~7.5

Sieve Residue 45um

%

≤0.5

Cu

mg/kg

≤30

Mn

mg/kg

≤50

Fe

mg/kg

≤300

Soluble salts (As Na2SO4)

%

≤1.0

 

Packing

Fusil® SDP21 Packaged in multiple layer Kraft paper, 10kg per bag 

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