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對 商 業 奈 米 粉 體 進 行 化 學 表 面 改 質 , 投 入 高 分 子 基 材 的 實 例 探 討SiO 2 奈 米 粉 體 廠 牌 :degussa AEROSIL ® 200Properties Unit Typical ValueSpecific surface area (BET) m 2 /g 200 ± 25Average primary particle size nm 12Tapped density g/l Approx. 50Moisture*wt % ≦1.52 hr at 105 o CIgnition loss, 2 hr at 1000 o C, wt % ≦1.0based on material dried for 2 hrat 105 o CpH3.7 ~ 4.7in 4% dispersionSiO 2 -contentbased on ignited materialwt % ≧99.8Data obtained from COA of degussa.38
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