Precipitated Silica for Silicone Rubber

In the silicone rubber industry, Precipitated Silica not only has better tensile strength and wear resistance, but also has good transparency, no whitening and no deformation when stretched.

  • Item NO.:

    Silicone Rubber Form
  • EINECS No:

    238-878-4
  • CAS No.:

    10279-57-9
  • Chemical Formula:

    SiO2

Precipitated Silica for Silicone Rubber

 

Chemical Properties

In the silicone rubber industry, Precipitated Silica not only has better tensile strength and wear resistance, but also has good transparency, no whitening and no deformation when stretched.

 

Specifications

Silicone Rubber Grade Precipitated Silica Uesd in silicone Rubber Precipitated Silica
Type Felcosil-799 Felcosil-779-1 Felcosil-800
BET specific surface area,m²/g 145±15 165±15 165±15
Heating loss(105° 2h), % 4.0-8.0
Lgniting loss(1000° 2h), % ≤7.0
SiO2 % Min, % ≥98.0
pH(5% suspension) 6.0-7.0
DBP Absorption, cm³/g 2.00-2.70
Salt as NA2SO4, % ≤0.7
Total Fe, mg/kg ≤200
Median Size:D50, um 12±2

 

SiO2, Precipitated Silica, White Carbon, Silicon Dioxide, Silica Powder, Amorphous Precipitated Silica

Precipitated Silica for Silicone Rubber

 

1. Package: 10kg/PE bag. Packaging can be customized.

2. Storage: Kept in a low temperature, dry and ventilated place, avoid direct sunlight.

3. Shelf life: One year in ventilating, cool and dry area.

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