聚亞醯胺/奈米金粒子複合材料之製備與性質研究

Preparation and Properties of Polyimide/Nano-Gold Particle Composite Materials

蔡日新(Ryh-Shin Tasy)

指導教授 ： 葉瑞銘

中原大學/理學院/化學研究所/碩士(2005年)

https://doi.org/10.6840/cycu200500673

摘要

摘 要
在此論文中主要是研究以檸檬酸還原法(Citrate reduction)製備出奈米級的金粒子，利用直接混合法(Mixing method)製備方式，將不同比例的奈米級的金粒子，加入聚亞醯胺(Polamic acid)溶液中，再進行縮合聚合反應，以製備出聚亞醯胺/奈米金粒子複合薄膜。藉由傅立葉轉換紅外光譜儀(FTIR)證實已成功縮合聚合成聚亞醯胺，另外並利用穿透式電子顯微鏡(TEM)的鑑定，證實金粒子在高分子中皆已達到奈米級的分散。並進一步將此材料製成自由立膜，並以動態機械分析儀(DMA)及拉力的量測來檢測機械性質。由結果顯示，機械性質皆會隨著奈米金粒(Nano-Gold Particle)摻入量的增加而隨之提升。進一步再使用熱重分析儀(TGA)、熱傳導與微差掃瞄式熱分析儀(DSC)來評估其熱性質。氣體穿透性質方面；藉由GPA、VPA量測後的數據得知，其結果會隨金粒子摻入量的增加而有提升阻氣、阻水的效果。最後以表面接觸角(Contact Angle)的量測來了解材料表面疏水性、WA量測了解吸水性質之研究。

關鍵字

聚亞醯胺 ； 奈米 ； 金粒子

並列摘要

Abstract

This thesis is mainly focused on the preparation and property studies of nanocomposite materials, which containing the dispersed phase of nano-scale gold particles and polyimide (PI) matrix. First of all, the nano-scale gold particles were generated through processing the reduction reactions of HAuCl4 compound by citrate. Subsequently, suitable amount of as-prepared gold nanoparticles were homogeneously added into the poly(amic acid) solution through the direct solution dispersion technique, followed by casting the as-mixing solutions on inorganic glass substrate and then treated by heated up to 300aC to complete the thermal imidization reactions of PI, yielding the polyimide-gold nanocomposite materials. The as-prepared nanocomposite materials were then characterized by FTIR, XRD and TEM.
Effect of material composition on the gas permeability, thermal stability, mechanical strength, thermal transport, surface wettability were investigated based on the studies of gas permeability analyzer (TGA), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), hot disk (HD) and contact-angle measurement, respectively.

並列關鍵字

Nano ； Polyimide ； Gold Particle

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