English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49378/84106 (59%)
造訪人次 : 7373404      線上人數 : 53
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: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/106812


    題名: Rheological Characterization of PLA/PTT Composite Blended with Nanoclay or mPOE
    作者: Lin, Gwo-Geng;Kuo, Ting-Wei;Sipos, Marek
    關鍵詞: PLA/PTT composite;nanoclay;rheology;relaxation time;activation energy
    日期: 2009-05-21
    上傳時間: 2016-04-27 11:24:45 (UTC+8)
    摘要: Polymer composites of PLA/PTT matrix blended with a small amount of 1, 3 wt% maleic anhydride-grafted polyethylene-octene (mPOE) or organically-modified nanoclay (Cloisite 30B) were prepared by the melt mixing method. The rheological measurements were conducted using the oscillatory rheometer. The stress relaxation time, which is inversely proportional to the cross-over frequency for the curves of the storage and loss moduli, can be estimated with the frequency sweep in the dynamic tests. It can be found that the complex viscosity (with strong shear-thinning), storage and loss moduli grew up with the increasing amount of PTT (20, 30, 50 wt%) and either one of the above fillers loaded. The relaxation time of the neat PLA/PTT blend was getting longer as more PTT was added. As to the PLA/PTT composites, a small amount of filler (irrespective of mPOE or Cloisite 30B) added could make the relaxation times become small; addition of 3 % nanoclay could make the relaxation time 100-fold shorter than that of the neat PLA/PTT blend. The flow activation energy was calculated, using the Arrhenius equation, with the temperature sweep of the complex viscosity in the dynamic measurements. It was found the activation energy of PTT was increased as its composition in the PLA/PTT blends was raised. For the PLA/PTT/clay nanocomposite, the addition of 1% Cloisite 30B may cause the activation energy contributed by PTT become very high; on the contrary, 3% addition of Cloisite 30B reduced the activation energy of the PTT phase, even lower than that of the neat PTT.
    關聯: Poster : E3-P-0072
    顯示於類別:[化學工程與材料工程學系暨研究所] 會議論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML37檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

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