Huifu Gas Silicon:
HL-200
1. Application
Unsaturated polyester and film elastomers for coatings and paints, mainly thermosetting (HTV) and room temperature vulcanizing (RTV) silicone rubber adhesives and sealants, ink silicone rubber cosmetics
2. Nature
Rheological control and thixotropic additives for reinforcing fillers of elastomers to prevent sedimentation, sagging, thickening, and improve the free flow and anti caking of powders with high transparency
3、理化数据
| 性质 | 单位 | 标准值 | 检查方法 |
| 比表面积（BET） | m2/g | 200±20 | GB/T 20020 |
| 悬浮液pH值(4%) | 3.9～4.5 | GB/T 20020 | |
| 干燥减量(105℃条件下干燥2h) | % | ≤2.0 | GB/T 20020 |
| 灼烧减量(1000℃灼烧2h,基于105℃干燥2h后产物) | % | ≤2.0 | GB/T 20020 |
| 筛余物(45μm) | mg/kg | ≤250 | GB/T 20020 |
| 二氧化硅含量(基于灼烧后产物) | % | ≥99.8 | GB/T 20020 |
| 振实密度(基于105℃干燥2h后产物) | g/dm³ | 40～60 | GB/T 20020 |