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頁籤選單縮合
題名 | 應用靜電紡絲技術生產木質素纖維=Application of Electrospinning Technology in the Production of Lignin Fibers |
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作者 | 張豐丞; 陳旗旗; 張家源; | 書刊名 | 林產工業 |
卷期 | 33:3 2014.09[民103.09] |
頁次 | 頁151-159 |
分類號 | 478.1 |
關鍵詞 | 靜電紡絲; 木質素磺酸鹽; 聚環氧乙烷; 木質素纖維; Electrospinning; Lignosulfonates; Polyethylene oxide; Lignin fiber; |
語文 | 中文(Chinese) |
中文摘要 | 本研究應用靜電紡絲(Electrospinning)技術在不同生產條件下將闊葉樹木質素磺酸鹽(Hardwood lignosulfonates,HLS)以纖維形式產出,探討其最佳化生產參數與測試其各項性質。研究結果顯示由於HLS 分子量較小,需添加聚環氧乙烷(polyethylene oxide,PEO)以利纖維的生成,以HLS:PEO 為97:3 之溶質最能穩定產生纖維。而木質素溶液配方將影響纖維形成,以重量濃度20%之溶液對於產生小徑級纖維效果較佳。電紡操作之電壓控制在10-20 kV 範圍內,以不同條件進行微調,纖維收集距離亦需隨之調整。總體而言以15 cm 為合適距離,搭配流速0.01-0.05 mL/min 可順利連續生成纖維。所用針規內徑大小對纖維直徑有影響,較小針規內徑可生成平均直徑較小之纖維。此外,溶劑的揮發效果亦會影響所生成之纖維品質均一性。本研究所使用溶劑其揮發性較慢,以致所生成之纖維因容易交疊融合而形成較粗纖維或片狀結構。而纖維薄片機械性質部分較弱,需進一步改良提升。 |
英文摘要 | In this study, electrospinning technology was used to produce lignin fiber, hardwood lignosulfonates (HLS) was used as the raw material, and the optimum parameters of production and various properties were investigated. Based on the experimental results, due to the relatively small molecular weight of lignin, polyethylene oxide (PEO) is needed to form fibers; furthermore, the optimum formulation in this study was HLS: PEO= 97:3. As well, the concentration of solution also influence the formation of fibers, and 20% by weight was found to produce fiber of better quality. The applied voltage was controlled within 10-20 kV, and the collecting distance was adjusted accordingly; generally, 15 cm was the proper collecting distance, with flow rate of 0.01-0.05 mL/min. Moreover, the needle gauge would affect the diameter of fibers, the smaller the needle gauge, the smaller the fiber diameters; however, the variation was significant. Besides, the volatility of solvent would considerably affect the uniform quality of fibers. In this study, some fibers of greater diameters and fused structures were observed due to slow volatility of the solvent. Mechanical properties of fiber mat are relatively weak and further improvement will be needed. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。