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研究生:呂致宏
論文名稱:傅立葉顯微紅外光譜法分析纖維成份
指導教授:卓琍玲卓琍玲引用關係
學位類別:碩士
校院名稱:中央警察大學
系所名稱:鑑識科學研究所
學門:軍警國防安全學門
學類:警政學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:60
中文關鍵詞:顯微紅外光譜法纖維鑑析纖維直徑纖維橫切面聚醯胺纖維聚酯纖維聚丙烯纖維
外文關鍵詞:Micro FT-IRsingle fiber identificationfiber diameterfiber cross-sectionpolyesternylonpolypropylene
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本研究係探討如何利用顯微紅外光譜(Micro FT-IR)、纖維橫切面形狀及直徑測量之系統分析方法,達到個化纖維的目的。實驗總共蒐集109種纖維:天然纖維17種,化學纖維92種;而研究重點在於化學纖維之鑑析。對於化學纖維之分類共分為三大類:聚酯纖維、聚醯胺纖維及聚丙烯纖維。以顯微紅外光譜法而言,可達到各類纖維分類之效果,而且樣品製備簡單、快速。本研究所採行之前處理方法,僅需將待析的樣品置於載玻片上,再以滾輪磨平即可進行紅外光譜分析。顯微紅外光譜雖可達到分類之目的,但在纖維之個化上卻未能達到理想的效果。尤其在聚酯纖維及聚丙烯纖維同分子結構之鑑析,僅能得到相同的紅外光譜;不論是官能基的位置、分佈或吸收強度皆相似,無法有效個化纖維。因此加入橫切面形狀及直徑測量二因子來加強個化能力,實際執行上,先觀察橫切面之形狀並以其分類,不同形狀之纖維當然為不同之纖維;形狀相同者,再比較其直徑之差異,如此,則可將相同分子結構之纖維詳細分類,可有效達到準個化(超細分類)纖維之目的。

Microscopic FT-IR, fiber diameter and cross-sectional shape were used to individualize single fiber in this study. 109 fibers were analyzed including: 17 natural fibers and 92 manufactured fibers. FT-IR Microspectroscopy analysis requires minimal sample preparation compared to conventional infrared analysis. Excellent infrared spectra were obtained from flattened single fiber before analysis. Infrared spectra can only show their generic group. For fiber individualization purpose, this research also measured fiber diameter and fiber cross-sectional shape. By using fiber diameter, cross-sectional shape, infrared spectra, we successfully separated 109 fibers into different groups.

目 錄
中文摘要‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧Ι
英文摘要‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧Ⅱ
表目錄‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧Ⅵ
圖目錄‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧Ⅶ
第一章 前言
1-1研究動機與目的‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧1
1-2文獻探討‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧2
1-2-1纖維證物在刑事鑑識上所扮演的角色‧‧‧‧‧‧‧2
1-2-1-1纖維的發展史及分類 ‧‧‧‧‧‧‧‧‧‧‧2
1-2-1-2纖維證物的轉移、存留及採取 ‧‧‧‧‧‧‧3
1-2-2纖維的分析鑑定方法‧‧‧‧‧‧‧‧‧‧‧‧‧‧5
1-2-3紅外光譜‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧6
1-2-4傅氏顯微紅外光譜儀之運用‧‧‧‧‧‧‧‧‧‧‧7
1-2-4-1傅氏顯微紅外光譜儀之特性 ‧‧‧‧‧‧‧‧7
1-2-4-2結合顯微鏡的紅外光譜分析 ‧‧‧‧‧‧‧‧8
1-2-4-3纖維分析的應用‧‧‧‧‧‧‧‧‧‧‧9
第二章 實驗操作
2-1實驗材料 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧10
2-1-1藥品 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧10
2-1-2纖維樣品 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧10
2-2儀器設備 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧10
2-3實驗方法及步驟 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧10
2-3-1纖維橫切面及直徑觀測 ‧‧‧‧‧‧‧‧‧‧‧‧‧10
2-3-1-1採樣 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧11
2-3-1-2包埋 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧11
2-3-1-3切片 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧11
2-3-2 Micro-FTIR的測定分析 ‧‧‧‧‧‧‧‧‧‧‧‧‧12
第三章 結果與討論
3-1纖維橫切面形狀及直徑的觀測 ‧‧‧‧‧‧‧‧‧‧‧14
3-1-1天然纖維 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧14
3-1-2化學纖維 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧15
3-1-2-1聚酯纖維 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧16
3-1-2-2聚醯胺纖維 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧17
3-1-2-3聚丙烯纖維 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧17
3-2顯微紅外光譜的再現性 ‧‧‧‧‧‧‧‧‧‧‧‧‧‧18
3-3纖維種類鑑析‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧21
3-3-1不同分子結構纖維的紅外光譜 ‧‧‧‧‧‧‧‧‧‧21
3-3-2分子結構相同聚酯﹙polyester﹚纖維之分析 ‧‧‧25
3-3-3分子結構相同聚醯胺﹙nylon﹚纖維之分析 ‧‧‧‧32
3-3-4分子結構相同聚丙烯﹙polypropylene﹚纖維之分析‧‧36
第四章 結論‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧39
參考文獻‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧41
附錄Ι:109種纖維樣品之種類、規格、橫切面形狀及直徑
附錄Π:109種纖維樣品之紅外光譜
附錄Ⅲ:109種纖維之橫切面放大影像

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