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題 名 | 以超臨界二氧化碳清除 Nylon-6 中之己內醯銨單體=Removing E-Caprolactam from Nylon-6 with Supercritical Carbon Dioxide |
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作 者 | 梁明在; 蔡慶祥; 陳嘉盈; | 書刊名 | 義守大學學報 |
卷 期 | 4 1997.08[民86.08] |
頁 次 | 頁289-298 |
分類號 | 460.02 |
關鍵詞 | 超臨界二氧化碳; 己內醯銨; Supercritical carbon dioxide; Nylon-6; E-caprolactam; |
語 文 | 中文(Chinese) |
中文摘要 | 本文調查了溫度與壓力對利用超臨界二氧化碳去除nylon-6 中己內醯銨單體的萃 取效率之影響。高溫時由於擴散係數的增大所以萃取速率增大,而高壓時由於二氧化碳分 子的溶入nylon-6 中導玫高分子黏度的降低進而增加了單體的擴散速率。本文並藉由非穩 定狀態擴散模式回歸計算己內醯銨單體在nylon-6 中的擴散之活化能與活化體積,以及建 立單體濃度對擴散係數之影響的關係式。 |
英文摘要 | This work investigates the effects of temperature and pressure on the removing rate of the extraction of E-caprolactam from nylon-6 by supercritical carbon dioxide. The removing rate increases with the temperature for its increase of diffusion coefficient. The removing rate also increases with the pressure of the carbon dioxide because the viscosity of the polymer decreases after the dissolving carbon dioxide into the nylon-6, which prompts the difusion coefficient. The activation energy and activation volume of the diffusion is calculated through the regression of the experimental data with the model of unsteady state diffusion. A relation between the concentration of the monomer in polymer matrix and the diffusion coefficient is also established in this work. |
本系統中英文摘要資訊取自各篇刊載內容。