■ Brief Introduction
The modified silica powder series independently developed by Hico is made through surface treatment and fine processing of natural quartz. Its main component is SiO₂. After surface activation modification, it has good affinity with epoxy resin and organosilicon resin. In systems based on epoxy resin and organosilicon resin, it achieves a high filling effect without affecting performance to the maximum extent.
The surface of modified silica fume is equipped with chemical groups that are compatible with organic systems, which can increase the addition amount of modified silica fume and reduce costs. Meanwhile, it improves the processing technology, enhances the combination with organic systems, and makes the physical and chemical properties more excellent.
■ Product Features
■ Product Technical Parameters
Products Name：Active silica powder
| Active Silica Powder Technical Parameters | ||||||
|---|---|---|---|---|---|---|
| Modification type | Model No. | Whiteness | D50 (μm) | D90 (μm) | Oil absorption value (g/100g) | Moisture (%) |
| Vinyl modification | HY-G0-2L | greyish white | ≤17.0 | ≤43.0 | 12-22 | ≤0.5 |
| HY-GB-3 | 91±2 | 2.5-5.5 | 7.5-13.5 | 30-40 | ≤0.5 | |
| Epoxy-based modification | HY-GA-1 | 88±2 | 8.0-10.5 | 20.5-28.5 | 22-35 | ≤0.5 |
| HY-GA-2 | 88±2 | 8.0-12.5 | 20.5-28.5 | 15-28 | ≤0.5 | |
| HY-GA-3 | 89±2 | 8.0-12.5 | 20.5-28.5 | 15-28 | ≤0.5 | |
| Silazane modification | HY-G0-2N | 85±2 | ≤17.0 | ≤43.0 | 15-25 | ≤0.5 |
| HY-GA-2N | 89±2 | 8.0-12.5 | 20.5-28.5 | 15-25 | ≤0.5 | |
| HY-GA-3N2 | white / slightly yellow | ≤9.5 | / | ≤20 | ≤0.5 | |
| Alkyl modification | HY-GB-S | 92±2 | 4.0-6.0 | 8.8-12.0 | 20-30 | ≤0.5 |
| HY-GA-2J | 90±2 | 8.8-12.5 | 20.5-28.5 | 15-25 | ≤0.5 | |
| HY-GB-1J | 92±2 | 4.00-6.00 | 8.80-12.00 | 20-30 | ≤0.5 | |
| Oligomer modification | HY-G0-2A | 85±2 | 14-17 | 45-60 | ≤25 | ≤0.5 |
| HY-GB-4 | 92±2 | 4.0-6.0 | 8.8-12.0 | 20-30 | ≤0.5 | |
