| Item | UnIt | HBCS-214 |
| Appearance | White power | |
| SiO2 content | % | >=99 |
| BET | m2/g | 191-220 |
| Heating loss (105ºC.2h) | % | <=6.5 |
| Ignition loss (105ºC,2h) | % | <=6.0 |
| PH value | 6.0-8.0 | |
| DBP absorption value | ml/g | 2.0-3.0 |
| Pour desity | g/m3 | 0.2-0.26 |
| From the slouble salt solution( By Na2So4) | % | <=2.5 |
| Particle size | um | 60-150 |
| Heavy metals (Pb) content | mg/kg | <=30 |
| Total lead content | mg/kg | <=5 |
| Total as content | mg/kg | <=3 |
| Total Cd content | mg/kg | <=0.5 |
Application of Silicon Dioxide
1, Rubber modified, sealant ceramic toughening modification, adhesives, functional fiber additive, plastic modification, paint aging additives;
2, Ceramics, nano ceramic, composite ceramic substrate;
3, Polymer: can increase the thermal stability and anti-aging polymer;
4, Flame retardant materials and coatings, high grinding medium, cosmetic products;
5, In cluster butyl benzene and chlorinated polyethylene adding a small amount of nano SiO2produce color rubber tenacity, elongation, strength, flexural performance and ultraviolet resistance and thermal aging performance and achieve or exceed epdm;
6, In traditional coating adding a small amount of nano silicon oxides, good solve the suspension stability, thixotropy and poor, poor finish.
Characteristics of Silicon Dioxide:
1) White dispersed powder
2) Can be dissolved by NaOH and HF, but cannot be dissolved by other kinds of acid, water and solvents
3) It has a good performance
4) With resistance to higher temperature
5) Will not combust and has good isolation
