Silicon Dioxide For Ordinary Rubber Products


Executive standard: HG/T3061

 

Index Technical Requirements
BET surface area ,m2/g 160- 180 160- 180 160- 180 160- 180 185-205 90-120 90-120
Silica content (dry goods), % ≥96.5 ≥96.5 ≥96.5 ≥96.5 ≥96.5 ≥96.5 ≥96.5
Heating loss, % 5.0-8.0 5.0-8.0 6.0-8.0 6.0-8.0 6.0-8.0 5.5-7.5 5.5-7.5
Loss on ignition (dry goods) % 4.0-6.0 4.0-6.0 4.0-6.0 4.0-6.0 4.0-6.0 4.0-6.0 4.0-6.0
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
DBP absorption value, cm3/g 2.2-2.7 2.2-2.7 2.2-2.7 2.2-2.7 2.0-2.7 1.8-2.4 1.8-2.4
Sulfate content, % ≤1.7 ≤1.7 ≤1.7 ≤1.7 ≤1.7 ≤1.7 ≤1.7
Total iron content, mg/kg ≤500 ≤1000 ≤500 ≤1000 ≤500 ≤500 ≤1000
Product appearance White powder、granular

 

Applications: Soles, tyres, adhesive tapes, rubber sheets, rubber tubes, hotwater bags, rubber-covered rolls,wear-resistant sundries, as well as pesticide and feed industry.