PRECIPITATED SILICA for rubber, shoe

PRECIPITATED SILICA for rubber, shoe SiO2 nH2O white powder/granular competitive price  PRECIPITATED SILICA for rubber, shoe1) MF:SiO2 nH202) white powder or granular3) Grade:industrial grade

 properties:

With special physic-chemical properties, Precipitated silica work as reinforcing transparent fillers highly valued in formulation of rubber-based blends, lead to enhanced tensile strength, tear strength and abrasion resistance and increase hardness of vulcanized rubbers, reduce consumption of rubbers and therefore reduce the cost.

Specification:

  

Appearance	Micron pearl/ Granula						Powder
SiO2 (ignited basis) %	≥98	≥98	≥98	≥98	≥98	≥98	≥98
SiO2 content ( SiO2 (dried basis) %	≥90	≥90	≥90	≥90	≥90	≥90	≥90
Specific surface area	115±10	130±10	155±10	175±10	195±10	215±10	175±10
Drying loss(105) %	4--8	4--8	4--8	4--8	4--8	4--8	4--8
Ignition loss(1000) %	≤7	≤7	≤7	≤7	≤7	≤7	≤7
PH value	6.0--7.5	6.0--7.5	6.0--7.5	6.0--7.5	6.0--7.5	6.0--7.5	6.0--7.5
Sulfate%	≤2	≤2	≤2	≤2	≤2	≤2	≤2
DBP absorption value cm3/100g	150-280	150-280	150-280	150-280	150-280	150-280	150-280
Sieve residue on 325 mesh%	≤0.5	≤0.5	≤0.5	≤0.5	≤0.5	≤0.5	≤0.1
Bulk density g/l	≥200	≥200	≥200	≥200	≥200	≥200	≥80
Particle size(D50) um	≥250	≥250	≥250	≥250	≥250	≥250

Application:

1)    For Light-colored, color and High-grade transparent rubber products. 

2)    For PE, PP, powder products as filler with good fluidity property

3)    As food additives, feed additives, Pesticide carrier with good fluidity and anti-caking property 

4)    For glass cement, sealant, painting, coating, printing ink, as thickener and Anti precipitating agent

5)    for others

Packaging

 20kg/bags,double-layer bag (inner layer with PE bag, outer layer with polypropylene bag)

PRECIPITATED SILICA for rubber, shoe