English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49521/84657 (58%)
造訪人次 : 7598965      線上人數 : 88
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/987654321/100572


    題名: Absorption and foaming of plastics using carbon dioxide
    作者: Lin, Gwo-Geng;Lin, Dar-Jong;Wang, Li-Jung;Kuo, Ting-Wei
    貢獻者: 淡江大學化學工程與材料工程學系
    關鍵詞: Foamed plastics;Henry constant;Diffusion coefficient;Carbon dioxide;Absorption
    日期: 2014-07-01
    上傳時間: 2015-03-06 10:37:31 (UTC+8)
    出版者: Dordrecht: Springer Netherlands
    摘要: In this study, carbon dioxide was used as a foaming agent for common
    plastics, such as acrylonitrile–butadiene–styrene (ABS) polymer, polystyrene (PS),
    polypropylene (PP), high-density polyethylene (HDPE), and high impact polystyrene
    (HIPS). Carbon dioxide was first absorbed by the sample plastics placed within
    a pressure vessel at various pressure levels and absorption time intervals. The
    Henry’s constant of the absorbed carbon dioxide in the plastics was determined. The
    diffusion coefficient of carbon dioxide in polymer was also identified by curve-
    fitting with the relationship between the absorbed amount and time. The results
    showed that ABS, PS, and HIPS absorbed more gas than did PP and HDPE, because
    PP and HDPE exhibit higher crystallinity. Generally, a polymer can take up saturation
    absorption of gas under higher pressure. After absorption, the foaming process
    occurred at various temperatures and time intervals. The cell structure, density,
    and size of the plastic foams were then investigated using scanning electron
    microscopy. A longer foaming period and higher temperature increase the size of
    the cell and decrease the cell density (the number of bubbles per unit volume). A
    dense skin layer without bubbles appeared directly adjacent to the surface of the
    foamed plastics. Its thickness decreased if the foaming process took place at higher
    temperatures.
    關聯: Research on Chemical Intermediates 40(6), pp.2259-2269
    DOI: 10.1007/s11164-014-1603-z
    顯示於類別:[化學工程與材料工程學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML131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