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研究生:黃淑芬
研究生(外文):Shu-fen Huang
論文名稱:CHITOSAN對PU / Nylon合成皮革染色性研究
論文名稱(外文):A Study of the Chitosan Effected Dyeability of PU / Nylon Synthetic Leather
指導教授:張淑美張淑美引用關係
指導教授(外文):Shu-Mei Chang
口試委員:林岩錫芮祥鵬
口試委員(外文):Yen-Hsi LinSyang-Peng Rwei
口試日期:2012-06-21
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:有機高分子研究所
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:68
中文關鍵詞:聚氨基甲酸酯合成皮革4-二環已基甲烷二異氰酸酯殼聚醣表面改質
外文關鍵詞:PolyurethaneSynthetic leather4,4´-Methylene dicyclohexyl diisocyanateChitosanSurface modification
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聚氨基甲酸酯 (Polyurethane) / 超極細聚醯胺纖維 (Polyamide、Nylon)合成皮革由於PU本身的化學結構、耐隆 (Nylon)超極細使得比表面積增加的關係,以及經研磨製程摩擦係數提高之結果,所以數十年來皆有牢度差及染不深的缺點,為了改善此問題乃進行合成皮革的表面改質研究。
本實驗針對聚氨基甲酸酯/超極細聚醯胺纖維合成皮革進行表面改質,使用H12MDI及高分子量或低分子量Chitosan兩步驟方式進行表面改質實驗。建立最適化表面改質的處理條件為55℃×20min先接上末端異氰酸基團(-NCO),之後再於55℃×5hr條件使用Chitosan使合成皮革形成末端胺基(-NH2 ) 。表面改質的合成皮革以ATR-FTIR、SEM、拉力機探討其結構與機械性質;另外以含有磺酸根基團(-SO3-)的酸性染料染色,藉由測色分光儀、牢度試驗評估其染深性及牢度改善效果。結果顯示第二步驟表面改質所使用的高分子量Chitosan較低分子量Chitosan之染色性改善效果佳。


The PU/ Ultra-fine polyamide fiber synthetic leather have had the defects of bad color fastnesses and worse depth for past decades, they were because the chemical structure of PU, the surface area proportion of nylon ultra-fine increased, and the friction coefficient of polishing process increased. In order to improve those problems, the synthetic leather was treated surface modification in this study.

In the study, the surface of polyurethane / super fine polyamide fiber synthetic leather were treated surface modification using H12MDI and the high molecular weight or low molecular weight chitosan with two steps to establish the optimum processing conditions. Firstly the terminal isocyanate groups (-NCO) of H12MDI was connected at 55℃ × 20min, secondly the chitosan was connected at 55℃ × 5hr, and then the terminal amino group (-NH2) was formed on the synthetic leather. For this modified synthetic leather surface, the structure and mechanical properties of modified surface were tested by ATR-FTIR, SEM and tensile strength, the improvements of deepening color and color fastnesses were measured by fastness tester and color spectrophotometer after it was dyed with acid dye of benzenesulfonic acid groups (SO3-). The results showed that the improvement effect of dyeing properties was high molecular weight chitosan better than low molecular weight chitosan as processing the second step.


目 錄

中文摘要 i
英文摘要 ii
誌謝 iii
目錄 iv
表目錄 v
圖目錄 vi
第一章 諸論
1.1 前言 1
1.2 研究背景 2
1.3 研究目的與原理 3
第二章 文獻回顧
2.1表面改質 5
2.2.1 PU表面改質 5
2.2.2 Chitosan的應用 7
2.2 鹼減量加工 8
2.3 染色 10
2.3.1超細Nylon纖維染色 10
2.3.2 PU染色 11
第三章 實驗
3.1實驗材料 12
3.2實驗儀器 19
3.3實驗配方 24
3.4實驗方法 27
3.5實驗流程 35
第四章 結果與討論
4.1純PU與PU / Nylon / PET合成皮革鹼減量前後之牢度探討 36
4.2異氰酸基團 (NCO)化表面改質 38
4.3末端胺基 (-NH2)化表面改質 44
4.4表面改質之染深性 50
4.5表面改質之牢度 54
4.6表面改質之白度值及吸水速率 60
4.7未加醋酸溶解Chitosan表面改質之抗機械性 61
4.8未加醋酸溶解Chitosan表面改質之SEM………………………...62
第五章 結論 63
參考文獻 65



參考文獻

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