Fumed Silica
Zhejiang Deqing Zhongyang Fine Chemical Co., Ltd. was established in 1999, evolving from a joint venture with Hong Kong's China Resources Group in 1992.
It is one of the earliest enterprises in China to develop silica aerogel products, which have gained widespread market recognition.
Describe
The RDS silica products have formed multiple product series, covering various fields such as coatings, leather, plastics, steel, automotive materials, adhesives, and anti-settling agents. The quality of these products has reached advanced levels both domestically and internationally, earning customer satisfaction. To date, ZYDQ has achieved a production capacity and scale of over 1,000 tons of RDS silica series products.
| Product Range | |||||
| Grade | RD907A / B | RDS500 | RDQ320 | RDS 310 | RDS909 |
| SiO2 content (dry base) |
≥98% | ≥98% | ≧99.8% | \ | \ |
| Specific surface area (m2/g) |
280-320 | 250-280 | 175-225 | 100-160 | 100-160 |
| Oil absorption (ml/100g) |
≥250 | 280-300 | \ | \ | \ |
| Average particle size (μm) |
5.0-5.8 | 4.5-5.0 | \ | \ | 3.0～5.0 |
| Heating loss (105°C/2h) |
≤3% | ≦3% | ≦1.5% | ≤0.6% | ≤0.6% |
| Ignition loss (1000°C/1h) |
<6% | ≦6% | ≦1.5% | \ | \ |
| PH (5% suspension) |
6.4-7.4 | 6.0-8.0 | 3.7-4.7 4% suspension |
4.0～6.0 4% suspension |
\ |
| Features | With a high porosity (specific surface area) and very low oil absorption, the product has excellent dispersion, excellent extinction and transparency. | This product is a superfine flowing white powder made from amorphous silica through surface treatment and refinement. It is non-toxic and odorless, and has an extremely rich pore structure. | This product is silica produced by the gas-phase process. It is soluble in caustic potassium (sodium) and hydrofluoric acid, insoluble in water and other acids. It is resistant to high temperatures, non-combustible, non-toxic and odorless. | This product is hydrophobic aerogel silica, which possesses excellent hydrophobicity, anti-flocculation property and thixotropic property, and can prevent the hardening of pigments. | This product is a kind of medium-sized granular silica with excellent hydrophobicity, thixotropy, anti-sagging property and anti-settling performance. |
| Application | Matting in high-end wood varnishes, instrument and coating paints, as well as color steel coatings. | Auto adhesives, sealants, coatings | Auto adhesives, sealants | Coating anti-settling agent, adhesive, powder coating, inks | Auto adhesives, epoxy resin coatings, powder coatings, silicone rubbers, sealants, inks |
