English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 56066/90152 (62%)
造訪人次 : 11542884      線上人數 : 97
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/987654321/65335

    題名: Macrovoids Formation and Light Scattering of PMMA
    作者: Chen, Zhi-hong;Chang, Z. C.;Lin, C. B.
    貢獻者: 淡江大學機械與機電工程學系
    關鍵詞: PMMA;hydrolysis;macrovoids;transmittance;scattering
    日期: 2007-08
    上傳時間: 2011-10-20 21:41:16 (UTC+8)
    出版者: Sadashivanagar: Indian Academy of Sciences
    摘要: After desorption of PMMA with saturated methanol and ethanol and then desorption by distilled water, the macrovoids are formed because of the phase inversion. The macrovoids on the surface of the specimens are larger and more numerous than those in the bulk. The macrovoids are likely to be closed-type, if the hydrolysis temperature is lower. On the other hand, if the hydrolysis temperature is higher, the macrovoids are likely to be open-type. Due to the formation of macrovoids, smaller than visible wavelengths, the light will disperse, and therefore, reduces the transmittance of the specimens. The transmittance is decreased when the hydrolysis temperature and hydrolysis time are increased. Furthermore, it is much clearer when ethanol is used as solvent than methanol. The scattered intensity of the specimens after hydrolysis is inversely proportional to the visible wavelength with an exponent, n, in the range 0·04–2·83 for methanol and 0·02–0·21 for ethanol
    關聯: Bulletin of Materials Science 30(4), pp.365-378
    DOI: 10.1007/s12034-007-0060-3
    顯示於類別:[機械與機電工程學系暨研究所] 期刊論文


    檔案 描述 大小格式瀏覽次數
    art%3A10.1007%2Fs12034-007-0060-3.pdf8008KbAdobe PDF71檢視/開啟
    indext.html7970KbAdobe PDF249檢視/開啟



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