國立高雄大學圖資館 |

語系: 繁體中文

說明(常見問題)

圖資館首頁

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

可應用於濕潤環境之仿生壁虎膠帶之製備研究 = The preparati...

國立高雄大學化學工程及材料工程學系碩士班

可應用於濕潤環境之仿生壁虎膠帶之製備研究 = The preparation of bio-inspired gecko tape in application of humid environment

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	The preparation of bio-inspired gecko tape in application of humid environment
作者:	林友志,
其他團體作者:	國立高雄大學
出版地:	高雄市
出版者:	國立高雄大學;
出版年:	2013[民102]
面頁冊數:	110葉圖 : 30公分;
標題:	高密度聚乙烯
標題:	High-density polyethylene(HDPE)
電子資源:	https://hdl.handle.net/11296/sh58gs
附註:	107年11月1日公開
附註:	參考書目：葉108-110
摘要註:	本研究利用熱壓印技術於高密度聚乙烯上製備仿生壁虎腳結構，並試圖結合鄰苯二酚基團進行表面改質，以提高其黏著特性與應用。本研究分為三部分討論：包含模具製程的開發、壓印製備仿生壁虎膠帶，以及表面改質後的仿生壁虎膠帶進行黏著力特性分析。「仿生膠帶」靈感來自於自然界中的壁虎，由於壁虎腳上的多尺度微奈米結構，其接觸面積所產生的凡得瓦爾力，足夠撐起超過自身重量，因此壁虎可以行走於各種表面上而不會掉落；同時自然界中的貽貝，會分泌出一種在水中仍具有黏性的物質-多巴(Dopa)，普遍有黏性的物質在水中便不具有黏性，但由於多巴本身的結構特性，使其不僅可以在濕環境中具有黏性，同時亦可附著在各式材料上。因此，本研究試圖從壁虎及貽貝中得到的生物啟發，製備出可應用於濕潤環境的仿生壁虎膠帶。於模具製程開發部分，利用溶劑輔助壓印聚甲基丙烯酸甲酯(PMMA)，於適當的壓印力及壓印時間下，可控制PMMA形成的奈米柱高度，並利用聚二甲基矽氧烷(PDMS)作為翻模材料，即可得到對應圖案深度的PDMS模具，達到製備可重覆使用的奈米孔洞模具。壓印製備仿生壁虎膠帶部分，先利用熱壓印法結合聚碳酸酯模板，可製備出直徑400 nm以及220 nm的奈米柱結構，並利用電子顯微鏡(SEM)觀察其表面結構形貌。為了提升仿生膠帶的貼附能力，即需要大面積的奈米柱狀結構所產生的凡得瓦爾力，因此利用溶劑置換法，可改善並提高圖案完整區域面積，其完整區域面積可以達到94.82%，使其具有高貼附性。藉由原子力顯微鏡(AFM)量測結果，於220 nm結構可產生5882 nN的貼附力，而400 nm結構亦有3170 nN的貼附力。以400 nm結構進行掛重測試，於1 cm2面積下可吊掛1.05 kg重的物品。最後是表面改質部分，由於多巴胺無法直接於表面上進行均勻改質，因此藉由逐層組裝的方式，於酸性溶液中先修飾多巴胺，再於鹼性溶液中修飾鄰苯二酚，使表面可以完全裸露出含有黏性的官能基團。並藉由水接觸角量測儀、衰減全反射紅外線光譜儀、表面元素分析儀，以及拉曼光譜儀鑑定分析表面改質後的結果，並利用AFM量測表面改質後的貼附力。由於改質後的奈米柱結構產生形變，使其整體黏著力下降，因此可藉由多層組裝的方式或接枝適當的鄰苯二酚衍生物進行表面改質，達到提升黏著力的效果。 We applied thermal imprint to fabricate gecko-feet-like nanostructures on HDPE films and modified those surfaces via catecholic functional groups to enhance their adhesion to wetted substrates. The study included three major parts: development of nanostructured molds, preparation of gecko tape, and the effect of adhesion force via surface modification.The dry adhesive was inspired from gecko feet where multi-dimensional micro/nano structures on the surfaces can generate enough van der Waals force to hold its weight when it walks and presses on the surface to increase contact areas. The other concept for catechol modification came from adhesion on a variety of surfaces by mussels, which are found to secret a sticky liquid containing dopamine-related poly(aminoacid) to enhance universal adhesion property in air, even in a humid or aqueous circumstance.　　Development of gecko-foot molds: using the solvent-assisted imprint lithography to prepare the PMMA mold, and the height of PMMA nanopillars could be controlled by imprint time and imprint pressure. Then, the PMMA nanopillars were placed face-up to transfer the morphology onto the PDMS surface. The PDMS mold could be used to fabricate the nanopillar features on a gecko-tape. Preparation of gecko tape: polycarbonate sheets with nanoholes were used as templates to imprint general HDPE film surfaces to generate 400 nm or 220 nm diameter nanopillars. Demolding process was improved by using solvent replace techniques to fabricate a practical, large-area gecko tape because of patterned area on a tape determining its adhesion force. The completeness of a surface was enhanced to 94.8%, and the tape displayed as high as 5882 nN adhesion force on the 220 nm diameter pillared surface based on AFM measurement. The tape with 400 nm diameter nanopillars showed 3170 nN adhesion force and was able to hang a 1.05 kg weight object per cm 2.Surface modification: we introduced catecholic functional groups on the nanopillar surfaces using layer-by-layer method to improve adhesion when the gecko tape was used in a humid environment. First, the surfaces were modified with dopamine in acid solution, then grafted with catechol in basic solution. However, some nanopillar structures were deformed after surface modification, resulting in a decrease of adhesion force. We could fabricate multi-layer to increase the cathcholic functional groups on surface to increase the adhesion force. Eventually, the modified gecko tape was found to show adhesion property under water, giving a promising applications to biomedical tapes, sea-water-durable objects, skin bandages, and so on.

可應用於濕潤環境之仿生壁虎膠帶之製備研究 = The preparation of bio-inspired gecko tape in application of humid environment
林, 友志

可應用於濕潤環境之仿生壁虎膠帶之製備研究 = The preparation of bio-inspired gecko tape in application of humid environment / 林友志撰 - 高雄市 : 國立高雄大學, 2013[民102]. - 110葉 ; 圖 ; 30公分.
107年11月1日公開參考書目：葉108-110.
高密度聚乙烯High-density polyethylene(HDPE)

可應用於濕潤環境之仿生壁虎膠帶之製備研究 = The preparation of bio-inspired gecko tape in application of humid environment
LDR:06485nam a2200277 450 001 389505
005 20190102102609.0
010 0 $b 精裝
010 0 $b 平裝
100 $a 20130926y2013 k y0chiy50 e
101 1 $a chi $d chi $d eng
102 $a tw
105 $a a am 000yy
200 1 $a 可應用於濕潤環境之仿生壁虎膠帶之製備研究 $d The preparation of bio-inspired gecko tape in application of humid environment $z eng $f 林友志撰
210 $a 高雄市 $c 國立高雄大學 $d 2013[民102]
215 0 $a 110葉 $c 圖 $d 30公分
300 $a 107年11月1日公開
300 $a 參考書目：葉108-110
314 $a 指導教授：鍾宜璋博士
328 $a 碩士論文--國立高雄大學化學工程及材料工程學系碩士班
330 $a 本研究利用熱壓印技術於高密度聚乙烯上製備仿生壁虎腳結構，並試圖結合鄰苯二酚基團進行表面改質，以提高其黏著特性與應用。本研究分為三部分討論：包含模具製程的開發、壓印製備仿生壁虎膠帶，以及表面改質後的仿生壁虎膠帶進行黏著力特性分析。「仿生膠帶」靈感來自於自然界中的壁虎，由於壁虎腳上的多尺度微奈米結構，其接觸面積所產生的凡得瓦爾力，足夠撐起超過自身重量，因此壁虎可以行走於各種表面上而不會掉落；同時自然界中的貽貝，會分泌出一種在水中仍具有黏性的物質-多巴(Dopa)，普遍有黏性的物質在水中便不具有黏性，但由於多巴本身的結構特性，使其不僅可以在濕環境中具有黏性，同時亦可附著在各式材料上。因此，本研究試圖從壁虎及貽貝中得到的生物啟發，製備出可應用於濕潤環境的仿生壁虎膠帶。於模具製程開發部分，利用溶劑輔助壓印聚甲基丙烯酸甲酯(PMMA)，於適當的壓印力及壓印時間下，可控制PMMA形成的奈米柱高度，並利用聚二甲基矽氧烷(PDMS)作為翻模材料，即可得到對應圖案深度的PDMS模具，達到製備可重覆使用的奈米孔洞模具。壓印製備仿生壁虎膠帶部分，先利用熱壓印法結合聚碳酸酯模板，可製備出直徑400 nm以及220 nm的奈米柱結構，並利用電子顯微鏡(SEM)觀察其表面結構形貌。為了提升仿生膠帶的貼附能力，即需要大面積的奈米柱狀結構所產生的凡得瓦爾力，因此利用溶劑置換法，可改善並提高圖案完整區域面積，其完整區域面積可以達到94.82%，使其具有高貼附性。藉由原子力顯微鏡(AFM)量測結果，於220 nm結構可產生5882 nN的貼附力，而400 nm結構亦有3170 nN的貼附力。以400 nm結構進行掛重測試，於1 cm2面積下可吊掛1.05 kg重的物品。最後是表面改質部分，由於多巴胺無法直接於表面上進行均勻改質，因此藉由逐層組裝的方式，於酸性溶液中先修飾多巴胺，再於鹼性溶液中修飾鄰苯二酚，使表面可以完全裸露出含有黏性的官能基團。並藉由水接觸角量測儀、衰減全反射紅外線光譜儀、表面元素分析儀，以及拉曼光譜儀鑑定分析表面改質後的結果，並利用AFM量測表面改質後的貼附力。由於改質後的奈米柱結構產生形變，使其整體黏著力下降，因此可藉由多層組裝的方式或接枝適當的鄰苯二酚衍生物進行表面改質，達到提升黏著力的效果。 We applied thermal imprint to fabricate gecko-feet-like nanostructures on HDPE films and modified those surfaces via catecholic functional groups to enhance their adhesion to wetted substrates. The study included three major parts: development of nanostructured molds, preparation of gecko tape, and the effect of adhesion force via surface modification.The dry adhesive was inspired from gecko feet where multi-dimensional micro/nano structures on the surfaces can generate enough van der Waals force to hold its weight when it walks and presses on the surface to increase contact areas. The other concept for catechol modification came from adhesion on a variety of surfaces by mussels, which are found to secret a sticky liquid containing dopamine-related poly(aminoacid) to enhance universal adhesion property in air, even in a humid or aqueous circumstance.　　Development of gecko-foot molds: using the solvent-assisted imprint lithography to prepare the PMMA mold, and the height of PMMA nanopillars could be controlled by imprint time and imprint pressure. Then, the PMMA nanopillars were placed face-up to transfer the morphology onto the PDMS surface. The PDMS mold could be used to fabricate the nanopillar features on a gecko-tape. Preparation of gecko tape: polycarbonate sheets with nanoholes were used as templates to imprint general HDPE film surfaces to generate 400 nm or 220 nm diameter nanopillars. Demolding process was improved by using solvent replace techniques to fabricate a practical, large-area gecko tape because of patterned area on a tape determining its adhesion force. The completeness of a surface was enhanced to 94.8%, and the tape displayed as high as 5882 nN adhesion force on the 220 nm diameter pillared surface based on AFM measurement. The tape with 400 nm diameter nanopillars showed 3170 nN adhesion force and was able to hang a 1.05 kg weight object per cm 2.Surface modification: we introduced catecholic functional groups on the nanopillar surfaces using layer-by-layer method to improve adhesion when the gecko tape was used in a humid environment. First, the surfaces were modified with dopamine in acid solution, then grafted with catechol in basic solution. However, some nanopillar structures were deformed after surface modification, resulting in a decrease of adhesion force. We could fabricate multi-layer to increase the cathcholic functional groups on surface to increase the adhesion force. Eventually, the modified gecko tape was found to show adhesion property under water, giving a promising applications to biomedical tapes, sea-water-durable objects, skin bandages, and so on.
510 1 $a The preparation of bio-inspired gecko tape in application of humid environment $z eng
610 # 0 $a 高密度聚乙烯 $a 壁虎膠帶 $a 黏著力 $a 多巴胺 $a 鄰苯二酚
610 # 1 $a High-density polyethylene(HDPE) $a gecko-inspired $a dry adhesives $a dopamine $a catechol
681 $a 008M/0019 $b 541208 4444 $v 2007年版
700 1 $a 林 $b 友志 $4 撰 $3 614387
712 0 2 $a 國立高雄大學 $b 化學工程及材料工程學系碩士班 $3 353898
801 0 $a tw $b 國立高雄大學 $c 20181115 $g CCR
856 7 # $u https://hdl.handle.net/11296/sh58gs $z 電子資源 $2 http