English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 62570/95233 (66%)
造訪人次 : 2558088      線上人數 : 272
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/44424

    題名: Effect of compatible nucleation seeds on the morphology of porous Nylon 6 membrane
    作者: Lin, Dar-jong;Cheng, Liao-ping;Lin, Shih-pin
    貢獻者: 淡江大學化學工程與材料工程學系
    關鍵詞: Blend;Compatibility;Nucleation;Meta-solution;Membranes;Nylon 6
    日期: 2002-09-01
    上傳時間: 2010-03-09 10:20:27 (UTC+8)
    出版者: Elsevier
    摘要: Recent study has revealed that when the nucleation takes place by adding compatible particles in Nylon 6 medium, it is possible to change greatly the nucleation intensity and the growing speed of crystallites. The present work demonstrates the employment of compatible PPO which was prepared by reactive blending of PPO and Nylon 6. A compatible phase of PPO was dispersed in meta-solution containing Nylon, formic acid and water. Dopes in meta-solution condition were prepared by varying the quantity and compatibility of dispersed PPO phase. It was observed that the morphology of membranes was dependent on the number of dispersed PPO. Firstly, the quantity of growing crystallite numbers initiated in such meta-solution dopes was much more than that when there is no compatible dispersed PPO in dopes. The resultant structure of membranes is due to kinetic mechanism of nucleation in addition to the thermodynamic phase behavior, both of which are prevalent for membrane formation process. Secondly, different compatibility between PPO and Nylon 6 results in different size of dispersed PPO phase in blends. Therefore even with the same weight fraction of PPO, different compatibility gives different quantity in number of dispersed PPO in meta-solution dopes and thus produces different effects of nucleation induction. The better is the interface compatibility of original blend, the greater will be the initial nucleation and thus, the porosity of the structure of membranes will increase.
    關聯: Desalination 145(1-3), pp.31-37
    DOI: 10.1016/S0011-9164(02)00360-0
    顯示於類別:[化學工程與材料工程學系暨研究所] 期刊論文


    檔案 描述 大小格式瀏覽次數
    1-s2.0-S0011916402003600-main.pdf739KbAdobe PDF1檢視/開啟



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋