期刊論文
| 學年 | 105 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2016-12-01 |
| 作品名稱 | Preparation of solvent-dispersible nano-silica powder by sol-gel method |
| 作品名稱（其他語言） | |
| 著者 | Chao-Ching Chang; Jo-Hui Lin; Liao-Ping Cheng |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of applied science and engineering 19(4), p.401-408 |
| 摘要 | Solvent dispersible nano-silica powder was prepared by a dual-step sol-gel process: first, SiO_2nanoparticles were synthesized through acid-catalyzed hydrolysis and condensation of tetraethyl orthosilicate in 2-propanol aqueous solution. Then, the particles were surface-modified by means of the capping agent trimethylethoxysilane (TMES). The formed product, termed TSiO_2 nanopowder, was dispersible in many organic solvents, and the dispersibility was found to depend on the amounts of TMES bounded to the SiO_2 nanoparticles. FTIR spectra of TSiO_2 samples confirm Si-O-Si linkage being formed between TMES and SiO_2 through the capping reaction. The sizes of TSiO_2 dispersed in various solvents, as determined by dynamic light scattering (DLS), fell largely over the range 2-20 nm for solvents with solubility parameters of 16-29.6 MPa^(1/2). TEM imaging of the nanoparticles indicated that they were well separated with the largest identifiable size of ~10 nm, agreeing with the results obtained from DLS. |
| 關鍵字 | Nanoparticles;Dispersible;Sol-gel;Silica |
| 語言 | en |
| ISSN | |
| 期刊性質 | 國外 |
| 收錄於 | EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/125108 ) |