气相法白炭黑 Fumed Silica
物化性质:
气相法白炭黑又称气相二氧化硅。白色无定形高分散的微细粉末。具有高分散性能。溶于苛性钾(钠)和氢氟酸。不溶于水和其他酸。在空气中吸收水分形成聚集的细粒。对化学药品稳定。耐高温。不燃烧。具有高电绝缘性。
Product features:
It is a white, amorphous,high-dispersive and minuteness powder. It dissolved caustic potash (natrium) and hydrofluoric acid, but don’t dissolved water and other acids. It can form collective granule after imbibed moisture in the air. It is stable for the chemical medicine, endures high temperature, no inflammation, and insulation for electricity.
应用领域:
具有高的增稠和触变效应。吸附性和补强性好。用作塑料和涂料的增稠剂和触变剂,硅橡胶补强剂,塑料薄膜开口剂,粉体防结块剂,医药赋形剂,化妆品性能改进剂,密封材料,电绝缘,热绝缘,油墨等。
Application :
It has the effect of high thicken and thixotropy, good adsorption and reinforcement. It used as thickening agent and thixotropic agent for plastic and dope, reinforcing agent for silicon –rubber, open agent for plastic film, anti-agglomeration agent for powder, excipient for medication, capability amelioration agent for cosmetic, airproof material, insulation for electricity and hotness, printing ink and so on.
Product properties: | ||
item | specification | |
A150 | A200 | |
specific area | 150±25 | 200±25 |
content of SiO2 | ≥99.8% | |
PH value of suspending liquid | ≥4.0 | |
remaining of 45μm | ≤0.05% | |
weight lost after desiccation | ≤3% | |
weight lost after baking | ≤2.5% |