Substantial good quality Hydrophilic fumed silica for polyester, silicone, paints and coatings
hydrophilic fumed silica with a specific surface area area of two hundred m2/g .The original particle size can be 5- forty nm. It truly is a type of higher purity white colloidal powder.
It is mainly utilized for high-temperature vulcanized silicone rubber, organic and natural silicone defoamer, innovative printing ink, powEPTcoating, PVC resin, unsaturated polyester resin thickening, thixotropic agent, pharmaceutical powder, tabular preparation, cosmetics and so forth.
hydrophilic fumed silica Specification
| Specification | CS-1 | CS-two | CS-three | CS-four | CS-five | CS-6 |
| Certain sunface area(Guess), /g | a hundred and fifty plusmn15 | two hundred plusmn20 | one hundred sixty | 210 | a hundred and fifteen plusmn15 | one hundred seventy plusmn15 |
| pH price in four% dispersion | 3.9~4.5 | three.nine~four.5 | 7.~eight.five | seven.~eight.five | three.7~4.5 | 3.7~4.5 |
| Loss on drying(2 hours at a hundred and five ordmC), % | le1.five | le2. | le0.5 | le0.five | le0.7 | le0.seven |
| Loss on ignition(2 hours at 1000 ordmC primarily based on content dried for two hours at one hundred and five ordmC), % | le2. | le2. | le4. | le8. | le2.five | le2.5 |
| Sieve Residue(45 mum), mg/kg | le250 | le250 | – | – | – | – |
| Silica Content material(Dependent on ignited substance), % | ge99.8 | ge99.eight | ge99.8 | ge99.eight | ge99.8 | ge99.eight |
| EPTmped Density(Dependent on material dried at a hundred and five ordmC for two hrs), g/dm sup2 | forty~sixty | forty~sixty | 40~60 | 40~sixty | 40~60 | 40~sixty |
| Carbon Content (Dependent on substance dried at one hundred and five ordmC for 2 hrs), % | – | – | two.five~4. | 3.5~6.five | .6~1.2 | .eight~one.6 |
| Al2O3 mass fraction mg/kg | four hundred | 400 | 400 | 400 | 400 | four hundred |
| TiO2 mass portion mg/kg | two hundred | 200 | two hundred | 200 | two hundred | two hundred |
| Fe2o3 mass fraction mg/kg | 30 | 30 | 30 | 30 | thirty | thirty |
