Hydrophilic high purity silica microspheres 1)SiO2(purity):99.5% 2)Particle size:10-30nm 3)super Hydrophilic 4)precipitated
Hydrophilic high purity silica microspheres
1. Characteristic
hydrophilic silica is a white and colloidal micro-particle with its primary micro-particle from 10-30nm and has obvious 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.
2.Specification
SiO2%(950°C2h) | PH value | particle size | appearanc |
Min 99.5% | 5~7 | Max 30nm | White minute of power |
3.Application | suggested volumn of addition |
heat vulcanized(HTV)silicone rubber | 10~40% |
vulcanized elastomer of room temperature(silican rubber,polyurethane) | 3.0~20% |
Coating(crylic acid,epoxy,polyurethane) | 0.8~5 % |
Heat protection, anticorrosive coating | 2.0~5% |
gravure printing ink, surface printing ink | 0.5~2.5% |
| 0.1~2.5% |
adhesives | 1.0~2.0% |
Power coating | (Inside)0.8%~2.5% (outside)0.1%~0.3% |
4. Packing
packedth multi-layer paper plastic compound bag with net weight of 5 kg, or packed by whole plastic seal for users having special demand on water content.
5. Store and transport
placed in vent and dry storehouse and prevented from humid, water, pressure and throwing during transport.
Hydrophilic high purity silica microspheres
