Product Name:Fumed Silica
Characteristic:It is a white and colloidal micro-particle with its primary micro-particle from 5-40 nm and has properties such as thixotropy, reinforcing, thickening and filling etc. and is insoluble in all kinds of solvents and liquids except hydrofluoric acid and concentrated bases.
Appreance:Powder
Package：10kg/Paper bag
Advantage of Fumed Silica：
1. High properties: This series' products are popular for their favorable price,good quality and high properties
2. Excellent thixotropy, thickening anti-settling
3. Easy dispersion brings unique coating appearance properties
Application：
Censil-150:It is mainly used for acidic silicone rubber, RTV silicone rubber (low moisture content) and neutral silicone rubber.
Censil-200:It is mainly used for high-temperature vulcanized silicone rubber, organic silicone defoamer, advance printing ink, powder coating, PVC resin, unsaturated polyester resin thickening, thixotropic agent, pharmaceutical powder, tabular preparation, cosmetics etc.
Censil-300:It is mainly used for silicone rubber, silicone grease and sealing materials of capacitance packaging with high transparency and high tear resistance.
Censil-380:It is mainly used for printing ink (copy toner), coating, plastic, toothpaste, food, medicine, cosmetics, silicone rubber, sealant, adhesive, gel battery composite material, industriallubricating oil, unsaturated polyester resin, layered resin and gel coat, insulation glue of cable and cable gel, thickener of synthetic grease, plant protection etc.
Specification |
CENSIL 150 |
CENSIL 200 |
CENSIL 300 |
CENSIL 380 |
Appearance | White Powder | White Powder | White Powder | White Powder |
Whiteness | 98 | 98 | 98 | 98 |
Heating loss (105°C 2h) % | 0.5-1.0 | ≤1.5 | ≤1.5 | ≤1.5 |
Ignition Loss 1000°C 2h (Dry Basis) % | 1.0-2.0 | ≤2.0 | ≤2.0 | ≤2.5 |
DBP(Oil absorption value) cm3/g | - | ≥180 |
| ≥180 |
PH value(5% Aqueous Suspension) | 3.5-4.5 | 3.5-4.5 | 3.5-4.5 | 3.5-5.5 |
SiO2(Dry Basis) % | ≥99.9 | ≥99.9 | ≥99.9 | ≥99.9 |
BET Specific Surface Area m2/g | 150+15 | 200+25 | 300+25 | ≥365 |
Particle size | 14-20 | 14-20 | 14-20 | 14-20 |
Bulk density m2/g | 40-50 | 40-50 | - | - |
