聚醯亞胺/矽烷耦合劑改質多壁奈米碳管之奈米材料的性質探討

Preparation and Characterization of Polyimide/Silane coupling agent modified Multi-wall Carbon nanotubes Composites

黃智宏(Jhih-Hong Huang)

指導教授 ： 程耀毅

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00332

摘要

本實驗以聚醯胺酸(PAA)加入多壁奈米碳管並攪拌(Blending)，並以旋轉塗佈和階段性熱熟化步驟製備不同比例的聚醯亞胺-奈米碳管複合材料，並探討PI與不同改質奈米碳管的性質。
本實驗利用傅立葉轉換紅外光譜儀（FTIR）及雷曼光譜儀(Raman)來鑑定化學結構，熱重損失分析儀（TGA）探討複材的熱穩定性質，萬能試驗機(Universal Test Machine)來測定複材的機械性質，超絕緣儀(super megohmmeter)測複材的導電性，穿透式電子顯微鏡(TEM)觀察奈米碳管的表面型態及奈米碳管在複材裡的型態和分散性以及偏光顯微鏡(POM)來觀察奈米碳管在複材裡的分散性。從
FTIR 的結果可知碳管改質是成功的，並以TEM 佐證之。複材方面，聚醯亞胺-改質奈米碳管複材於TGA 熱分析和萬能試驗機的結果顯示PI的熱穩定性和機械性質是以加入耦合劑改質的奈米碳管效果最佳，而複材導電性由結果顯示經由硝酸純化後的奈米碳管效果最佳。

關鍵字

polyimide(PI) ； 多壁奈米碳管(MWCNTs) ； 奈米複合材料 ； 耦合劑(GOTMS)

並列摘要

Various ratios of MWCNTs were added to the PAA to prepare PI/MWCNTs composites by spin coating and four-step curing. The thermal properties and mechanical properties were examined in this study.
The characteristic functional group of modified MWCNTs was identified by Fourier transform infrared spectrometer, and the structures were investigated by Raman spectroscopy. The thermal properties of PI/MWCNTs nanocomposites were
analyzed by Thermogravimetric analysis (TGA). The mechanical properties of PI-MWCNTs nanocomposites were tested by Universal Test Machine. The electrical
conductivity properties of PI-MWCNTs nanocomposites were obtained by Super Megohmmeter. The surface morphology of carbon nsnotube and dispersion of PI-MWCNTs nanocomposites were observed by Transmission electron microscopy (TEM). The dispersion of PI-MWCNTs nanocomposites were observed by Polarized Optical Microscope (POM). The modified MWCNTs were successful prepared which was verified by the result of FTIR and TEM. The results of TGA and Universal Test Machine showed that the PI/G-MWCNTs had the best thermal stability and mechanical property. The Super Megohmmeter result showed that the PI/Na-MWCNTs had the best conductivity.

並列關鍵字

Polyimide ； Multi-wall carbon nanotubes ； Nanocomposite ； Coupling agent

參考文獻

(27) 蔡岳昇，聚醯亞胺/非共價性改質多壁奈米碳管之奈米材料的性質探討，中華民國九十八年七月。

(8) 洪昭南、徐逸明、王宏達，｢奈米碳管結構及特性簡介｣，化工技術，第49卷，第1期，第23-30頁(2002)。

(33) 周貝倫，純化程序對奈米碳管表面特性影響之研究，中華民國九十五年七月。

(2) 樂文禮，聚醯亞胺奈米矽氧複合材料選擇性封裝之研究，國立成功大學碩士論文，中華民國91 年6 月。

(36) 黃彥瑋，無機物包覆奈米碳管/乙烯酯樹脂複合材料之製備及其性質之研究，中華民國九十八年七月。