HDK ® N20
Gas phase silica
Product properties
It is an artificially synthesized, hydrophilic, amorphous silica prepared by flame hydrolysis method.
Special properties
High purity white powder.
Product Application
HDK ® N20 can be used as a thickening and thixotropic additive in various organic systems, including unsaturated polyester resins, coatings, printing inks, adhesives, cosmetics, etc. On elastomers (synthetic rubber), mainly silicone rubber, it can play a reinforcing role. It can be used as an additive to increase fluidity in powder coatings, food and feed, and pharmaceuticals.
Product storage
The 'best use period' of the product will be indicated on each product label and quality inspection report.
Storing for more than the best use period indicated on the label does not mean that the product cannot continue to be used. However, in this case, in order to ensure product quality, it is necessary to re-examine the relevant properties of the product.
packaging
HDK ® N20 provides the following packaging forms:
-The pallet packaging methods include:
Each pallet is divided into 10 kilograms
-Large packaging bag:
150 kilograms, packaged in large pallets
-Tank truck:
Depending on the truck capacity, it is approximately 3.5-5 tons.
For details, please refer to the company website:（ http://www.wacker.com/hdk ).
Safety Instructions
Detailed safety instructions can be found in the corresponding product safety information. Welcome to request the Material Safety Data Sheet (MSDS) from our sales office. You can also access it through the Wacker website（ http://www.wacker.com/hdk ）Search
During transportation and handling, HDK ® N20 may generate static electricity.
Like other amorphous silica, HDK ® N20 does not contain carcinogenic (IARC classification, Volume 68, 1997) or mutagenic substances.
产品数据
主要性能 | 方法 | 数值 |
二氧化硅含量1) | DIN EN ISO 3262-19 | >99.8% |
烧失量2) （1000℃/2h） | DIN EN ISO 3262-19 | <2% |
二氧化硅密度 | DIN 51757 | 大约2.2g/cm3 |
折光系数 | 1.46 | |
硅烷醇基团密度 | 2 SiOH/nm2 |
物化性能 | 方法 | 数值 |
BET－表面积 | DIN ISO 9277/DIN 66132 | 170-230 m2/g |
浓度4％的分散液pH值 | DIN EN ISO 787-9 | 3.8-4.3 |
填充密度 | DIN EN ISO 787-11 | 大约40 g/l |
干燥失重3) (105℃,2h) | DIN EN ISO 787-2 | <1.5% |
筛余量（根据Mocker>40μm） | DIN EN ISO 787-18 | <0.04% |
1) Based on the substance calcined at 1000 ℃ for two hours
2) Based on the substance dried at 105 ℃ for two hours
3) According to factory conditions