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研究生:林高祺
研究生(外文):Lin, Kao-Chi
論文名稱:以兆赫波頻譜進行可低溫回收碳纖維產品分類
論文名稱(外文):Classification of Low-Temperature Recyclable Carbon Fiber Products by using Terahertz Time-Domain Spectroscopy
指導教授:楊承山
指導教授(外文):Yang, Chan-Shan
學位類別:碩士
校院名稱:國立臺灣師範大學
系所名稱:光電工程研究所
學門:工程學門
學類:電資工程學類
論文出版年:2021
畢業學年度:109
語文別:中文
論文頁數:45
中文關鍵詞:碳纖維低溫化學分解法回收兆赫波時域光譜非破壞性檢測carbon fiberCF
外文關鍵詞:carbon fiberlow-temperature chemical decomposition method recoverymegahertz wave time domain spectroscopynon-destructive testingcarbon fiberCF
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為達到環境永續發展,減少資源浪費,具有回收價值的碳纖維複合材料不應再視為廢物,而是可成為再度使用的材料。近年來許多研究機構或廠商紛紛投入化學分解法碳纖維回收技術,採用化學溶劑將基體樹脂和纖維分離,得到高品質的長纖碳纖維,惟目前使用的回收方法成本過於昂貴,為了解決此問題,有必要開發更高效能化之碳纖維回收方法,以提升此技術市場應用價值。若要能夠有效地將不同來源之碳纖維複合材料分解處理,在回收碳纖維處理前必須要搭配快速且有效率之非破壞性檢測技術,對碳纖維做快速檢測分類,不僅能配合不同溶劑之化學分解法,同時還可辨識出不易回收或是無回收價值之碳纖維。兆赫波具有低能量光子、高穿透和寬頻的特性,最有機會達到此檢測分類技術之目的,因此本實驗進行兆赫波碳纖維回收分類技術研究,藉由兆赫波光譜區分不同樹脂基碳纖維中環氧樹脂,以配合工研院研發低溫化學分解法得到可回收的樹脂與高品質長纖碳纖維。本實驗目標為使用兆赫波檢測技術進行碳纖維材料之品質鑑別,將兆赫波導入回收碳纖維複合材料的檢測技術領域,設計適用於回收線上檢測之兆赫波激發源,以加速兆赫波系統導入工業化碳纖維回收應用。
In order to achieve sustainable environmental development and reduce resource waste, the carbon fiber composite materials which have recycling value should no longer be regarded as waste, but should be reused. In recent years, many research institutions or manufacturers have invested in chemical decomposition carbon fiber recycling technology, using chemical solvents to separate the Epoxy matrix and the fibers, to obtain high-quality long carbon fibers. However, the current recycling methods are too expensive. In order to solve this problem, we must develop more efficient carbon fiber recycling methods, to enhance the application value of recycling technology in the market. To decompose carbon fiber composite materials from different sources effectively, the non-destructive detection technology is fast and efficient to get information before recycling carbon fiber. The rapid detection and classification technology can not only cooperate with the chemical decomposition method of different solvents, but also identify carbon fibers which are difficult to recycle or those have no recycling value. Terahertz has the unique characteristics of low-energy photons, high penetration and broadband. It seems to have best chance to achieve the goal of this detection and classification technology. Therefore, this experiment conducts the research of Terahertz spectrum to recycle and classify the carbon fiber, and distinguishes different Epoxy-based carbon fiber by Terahertz spectrum. Recyclable Epoxy and high-quality long-fiber carbon fiber are obtained by cooperating with the low-temperature chemical decomposition method developed by the Industrial Technology Research Institute. The goal of this experiment is to use Terahertz detection technology to identify the quality of carbon fiber materials, introduce Terahertz spectrum into the detection technology field of recycled carbon fiber composite materials, and design Terahertz wave excitation sources suitable for recycling line detection to accelerate industrial carbon fiber recycling application.
第一章 緒論 1
1.1 兆赫波介紹 1
1.2 兆赫波發展及應用 5
1.3 碳纖維介紹 6
1.4 碳纖維市場需求分析 7
1.5 碳纖維回收 9
1.6 目前市面碳纖維複材回收方式及比較 11
1.7 研究目的 14
第二章 實驗設置 15
2.1 兆赫輻射產生原理 15
2.2 實驗說明 18
2.3 低溫化學回收實驗原理 20
2.4 碳纖維樣品製備 22
2.5 實驗架構 雷射系統 TOPTICA Photonics 24
2.6 兆赫波時域光譜 THz-TDS 29
第三章 理論模型和分析原理 31
3.1 兆赫波時域穿透與反射光譜系統 31
3.2 THz-TDS取得材料的光學常數 33
第四章 結果與討論 35
4.1 反射式兆赫波光譜分析 35
4.2 兆赫波與FTIR分析結果比較 39
4.3 標準樣品的比較 40
4.4 兆赫波與拉曼分析結果比較 41
第五章 結論 42
5.1 結論 42
5.2 未來工作 43
參考文獻 44
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