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dc.contributor.advisorRu-Jong Jengen_US
dc.contributor.authorLin, Chin-Shengen_US
dc.description.abstract本研究是將聚琥珀酸丁酯 (Poly(butylene succinate)) 和多壁奈米碳管 (Multi-walled carbon nanotubes) 藉由熔融混煉 (Melt-blending) 的方式進行混摻,而獲得奈米複合材料。為了增加多壁奈米碳管在複合材料中的分散性,將碳管表面進行化學修飾,首先將多壁奈米碳管加入HNO3溶液中,進行酸化,使碳管表面帶有羧酸 (-COOH) 的官能基,然後再分別加入Jeffamine&;reg; polyetheramine系列中的M2005及M2070,在溫和的條件下,藉由N,N’-二環己基碳二亞胺 (N,N’-dicyclohexyl- carbodiimide,DCC) 脫水劑脫水,使碳管和Jeffamine&;reg; polyetheramine之間產生醯胺鍵的化學鍵結,改質後的碳管可以分散在Acetone、THF、Chloroform…等有機溶劑中,結果顯示利用DCC脫水劑成功的將碳管的改質。再利用簡單的熔融混煉方式製備PBS/MWNTs奈米複合材料,對於複合材料的熱性質、機械性質及導電性質進行探討。 結果顯示,MWNT-2005D及MWNT-2070D可以均勻分散在PBS中,有效的改善複合材料的熱性質、機械性質及導電性質。添加3.0 wt%的MWNT-2070D之複合材料,5 wt %重量損失之熱裂解溫度提升10.1 oC在25 oC下其儲存模數和損失模數分別提升了113%及116 %,而Tg也從原本的-36.7 oC提升至-31.1 oC。在導電性部分,PBS的表面電阻為2.35×1014 Ω/cm2,而添加3.0 wt%的MWNT-2070D之複合材料,其表面電阻為5.88×103 Ω/cm2,具有抗靜電的效果,甚至達到靜電消散或抗EMI的效果,未來將可以應用在電子相關產品上。zh_TW
dc.description.abstractIn this study, poly(butylene succinate)/multi-walled carbon nanotubes (PBS/MWNTs) hybrids were prepared by a melt-blending method. In order to enhance the compatibility between PBS and MWNTs, the surfaces of MWNTs were chemically modified. MWNTs were first pre-treated using acid solution (HNO3) to obtain functionalized carboxylic groups. Subsequently, Jeffamine® polyetheramine (M2005 (EO/PO = 6/29) and M2070 (EO/PO = 33/10)) were respectively grafted onto MWNTs with the assistance of a dehydrating agent, N,N'-dicyclohexyl-carbodiimide (DCC). As a result, organically modified MWNTs (MWNT-2005D and MWNT-2070D) were obtained. It was found that MWNT-2005D could be well dispersed in organic solvents such as acetone, THF, and chloroform. In addition, MWNT-2070D could be well dispersed in water. Moreover, the PBS/MWNTs nanocomposites were further prepared through the melt-blending method. Mechanical properties, thermal behavior, and conductivity of resultant PBS/MWNTs composites were investigated. The results show that excellent dispersion of nanotubes in the PBS matrices was achieved. Moreover, an improvement in thermal properties was also observed. With the addition of 3.0 wt % of MWNT-2070D, Td of the nanocomposite was 10.1 oC higher than that of the pristine PBS sample. Apart from that, the increments of E' and E” of the nanocomposite at 25 oC were 113 and 116 %, respectively. In the aspect of conductivity, the surface resistivity decreased from 2.35×1014 Ω/cm2 for neat PBS to 5.88×103 Ω/cm2 for the nanocomposites with 3.0 wt % of MWNT-2070D. Such PBS/MWNT-2070D nanocomposites are highly efficient for anti-static purpose, even electrostatic discharge and EMI shielding, which can be applied in electronic materials.en_US
dc.description.tableofcontents誌謝 I 摘要 II Abstract III 目錄 IV 表目錄 VI 圖目錄 VII 第1章、緒論 1 1.1 前言 1 1.2 生物分解性塑膠介紹 2 1.3 聚琥珀酸丁酯之簡介 3 1.4 奈米碳管之簡介 6 1.4.1 奈米碳管的發現 6 1.4.2 奈米碳管的結構 7 1.4.3 奈米碳管的合成方法 9 1.4.4 奈米碳管的改質 11 第2章、文獻回顧與理論基礎 16 2.1 高分子與奈米碳管複合材料之製備方式 16 2.2 PBS之奈米複合材料 17 2.3 生物可分解性高分子/多壁奈米碳管複合材料 20 第3章、研究動機 26 第4章、實驗內容 28 4.1 實驗流程 28 4.2 實驗藥品 30 4.3 儀器設備 32 4.3.1 分析儀器 32 4.4 實驗步驟 34 4.4.1 多壁奈米碳管之改質 34 4.4.2 PBS/多壁奈米碳管複合材料之製備 35 4.5 儀器測試方法及條件 36 第5章、結果與討論 39 5.1 改質多壁奈米碳管之鑑定 39 5.2 PBS/MWNTs複合材料之熱性質分析 42 5.3 PBS/MWNTs複合材料SEM型態學 52 5.4 PBS/MWNTs複合材料TEM型態學 56 5.5 PBS/MWNTs複合材料機械性質DMA分析 60 5.6 PBS/MWNTs複合材料導電性質分析 69 第6章、結論 72 第7章、參考文獻 74zh_TW
dc.subjectPoly(butylene succinate)en_US
dc.subjectcarbon nanotubesen_US
dc.titlePreparation and Properties of Biodegradable Poly(butylene succinate)/Jeffamine® polyetheramine Modified Multi-Walled Carbon Nanotube Nanocompositesen_US
dc.typeThesis and Dissertationzh_TW
item.fulltextno fulltext-
item.openairetypeThesis and Dissertation-
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