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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 楊申語(Sen-Yeu Yang) | |
dc.contributor.author | Liang-Chih Chen | en |
dc.contributor.author | 陳亮智 | zh_TW |
dc.date.accessioned | 2021-06-08T03:54:45Z | - |
dc.date.copyright | 2018-08-18 | |
dc.date.issued | 2018 | |
dc.date.submitted | 2018-08-15 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21952 | - |
dc.description.abstract | 微熱壓複製成型技術因具有製程簡易、設備成本低等優點,已廣泛應用於製作微結構於高分子光學元件上;但由於升降溫過程費時,且藉由壓板供給施壓易產生局部壓力不均的問題,影響生產效率及其應用。本研究利用石墨烯所具優異的熱電性能,製作出適用於微熱壓之石墨烯複材加熱器,並將加熱器結合皮帶輪壓印機構,開創出獨特的皮帶輪式微熱壓成型技術。
本研究首先比較石墨烯複材導電油墨黏度差異對分散性之影響,並以線棒塗佈法製作可供快速升溫使用之加熱器,成功開發面積達120 100 〖'mm' 〗^'2' 之加熱器,不僅可在60V電壓下升溫速率高達5.6°C/s,並同時溫差僅5.7°C的優異熱均勻性。接著以快速加熱器搭配附有撓性滾輪的皮帶輪壓印機構進行微熱壓複製成型,成功在最短3分鐘內將V型溝槽與微透鏡陣列兩結構複製於PETG與PMMA高分子材料上。本研究實驗並根據多組壓印成品的輪廓量測製作不同結構與基材之成型視窗,進一步探討與比較製程之參數與結果,經驗證本製程進行微米結構之複製面積達100 100 〖'mm' 〗^'2' ,其平均轉寫率最佳皆可達93%以上且成型均勻性良好。與傳統熱壓相比,本研究使用之製程可大幅縮短壓印的成型週期並改善成型均勻性,此外該技術符合成本低廉、操作簡單等工業生產所需之特性,壓印面積可由鋼帶尺寸自由調整,具有進一步應用於連續量產之潛力。 | zh_TW |
dc.description.abstract | Hot embossing is a low-cost and flexible fabrication method for replication of microstructures on optical polymer components. However, the use of hot plates not only caused the long heating and cooling time, also applied the embossing pressure which is not uniform. Both of the problems impacts its industrial efficiency and application. In this study, making use of the outstanding thermal and electrical properties of graphene-polymer composite, a high-performance heater was proposed and demonstrated for rapid heating. Furthermore, by combining the rapid heating of graphene-polymer composite heaters and the belt pulley embossing facility, we conduct a rolling hot embossing technique for the replication of microstructures on polymer substrates.
First, two graphene composites with different viscosity were tested and their dispersibility were compared. Second, the chosen graphene composite was coated onto PI film with wire bar coating method, and the graphene composite heater was developed for rapid heating. In the heating area of 120 x100 mm2, with a 60 V power, the heater achieved both the heating rate of 5.6°C/s and the temperature difference of 5.7°C. Then, using this graphene composite heater on the belt pulleyembossing facility, two kinds of microstructures including V-cut patterns and microlens array were successfully replicated on PETG/PMMA substrates. The cycle time are ess than 3 minutes. Over the forming area of 100 x100 mm2, the replication rate are better than 93% and with the good uniformity has been achieved. This study proves the great potential belt pulley rolling embossing using graphene-polymer composite heater for replication of microstructures. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T03:54:45Z (GMT). No. of bitstreams: 1 ntu-107-R05522733-1.pdf: 7648132 bytes, checksum: fdc08403fdd991283a00db3e2c8cf8d3 (MD5) Previous issue date: 2018 | en |
dc.description.tableofcontents | 誌謝 i
摘要 ii Abstract iii 目錄 iv 圖目錄 viii 表目錄 xiii 1第一章 導論 1 1.1 前言 1 1.2 傳統微熱壓成型技術 2 1.3 快速加熱技術 5 1.4 石墨烯複材快速加熱技術 6 1.5 滾輪壓印成型技術 7 1.6 研究動機與目標 8 1.7 論文內容與架構 9 2第二章 文獻回顧 10 2.1 微熱壓成型技術 10 2.2 快速加熱技術 13 2.2.1 超音波快速加熱技術 13 2.2.2 紅外線快速加熱技術 17 2.2.3 感應式快速加熱技術 21 2.3 石墨烯相關之快速加熱技術 23 2.3.1 石墨烯之性質與製備 23 2.3.2 石墨烯微加熱器 28 2.3.3 石墨烯加熱技術應用於微熱壓製程 32 2.3.4 石墨烯複合材料 33 2.3.5 石墨烯複材加熱原理 36 2.3.6 石墨烯複材快速加熱技術 37 2.4 滾輪壓印成型技術 39 2.4.1 微結構滾輪製作技術 41 2.4.2 皮帶輪式滾輪系統 45 2.5 綜合歸納 47 3第三章 實驗設置與方法 49 3.1 實驗目的與整體流程規劃 49 3.2 石墨烯複材加熱器設計 51 3.2.1 石墨烯複材與基材 51 3.2.2 石墨烯複材加熱器製作流程 53 3.2.3 電源供應器 54 3.3 皮帶輪壓印機構設計 56 3.3.1 輸送系統 57 3.3.2 張力調節系統 58 3.3.3 驅動系統 60 3.3.4 加壓系統 61 3.4 量測設備 62 3.4.1 紅外線熱影像儀 62 3.4.2 熱電偶溫度計 63 3.4.3 壓力量測器材 64 3.4.4 表面粗度量測儀 65 3.4.5 光學顯微鏡 65 3.4.6 雷射共軛焦顯微鏡 66 4第四章 石墨烯複材加熱器之開發 68 4.1 石墨烯複材導電油墨之選用 68 4.1.1 使用於低黏度導電油墨之塗佈法 69 4.1.2 使用於高黏度導電油墨之塗佈法 70 4.1.3 兩加熱器之熱分布比較 71 4.2 石墨烯複材加熱器之熱電性質 72 4.2.1 電壓對升溫速率之影響 72 4.2.2 電壓對穩態溫度之影響 73 4.2.3 面積對熱電性質之影響 76 4.3 石墨烯複材加熱器之效能 81 4.3.1 加熱重複性 81 4.3.2 加熱穩定性 82 4.3.3 加熱均勻性 83 4.4 加熱器輸入功率對鋼帶溫度之影響 84 4.5 結論 86 5第五章 皮帶輪式微熱壓製程探討與應用 88 5.1 加壓系統壓力均勻性探討 88 5.2 熱壓製程流程介紹 90 5.3 製程應用於微米結構複製成型 94 5.3.1 製程參數選用 94 5.3.2 V型溝槽壓印於PETG 99 5.3.3 V型溝槽壓印於PMMA 104 5.3.4 微透鏡陣列壓印於PMMA 106 5.3.5 成型結果比較 109 5.4 熱壓成品均勻性探討與應用 110 5.5 結論 113 6第六章 總結與未來展望 115 6.1 研究總結 115 6.2 未來展望 116 參考文獻 117 附錄A V型溝槽之PMMA成品九點表面輪廓圖 121 附錄B 微透鏡陣列之PMMA成品九點雷射共軛焦圖 123 | |
dc.language.iso | zh-TW | |
dc.title | 石墨烯複材加熱器應用於皮帶輪式微熱壓製程 | zh_TW |
dc.title | Application of Graphene-polymer Composite Heaters in Belt Pulley Hot Embossing Process | en |
dc.type | Thesis | |
dc.date.schoolyear | 106-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 邱智瑋(Chih-Wei Chiu),張致遠(Chih-Yuan Chang),粘世智(Shih-Chih Nian) | |
dc.subject.keyword | 微熱壓技術,石墨烯,複合材料,快速加熱,微結構, | zh_TW |
dc.subject.keyword | hot embossing,graphene-polymer composite,,heater,belt pulley,microstructures, | en |
dc.relation.page | 124 | |
dc.identifier.doi | 10.6342/NTU201803648 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2018-08-16 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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