以苯胺有機鹼催化溶膠-凝膠反應製備壓克力-二氧化矽奈米複合材料及其性質之研究

Property studies of Poly (methyl methacrylate)-Silica Nanocomposite Materials prepared by Sol-Gel Approach with Aniline as Organic Base Catalyst

葉嘉文(Chia- Wen Yeh)

指導教授 ： 葉瑞銘

中原大學/理學院/化學研究所/碩士(2004年)

https://doi.org/10.6840/cycu200400380

摘要

摘要
本研究是藉由溶膠-凝膠(Sol-Gel)方法，在苯胺有機鹼(Aniline)的催化下將無機物前趨體四乙烷氧矽化物(TEOS)導入有機高分子聚甲基丙烯酸甲酯(poly methy1-methacrylate, PMMA)中，而得到奈米級的高分子複合材料薄膜。論文主題可分成兩個部分來討論，第一部分為利用調控苯胺有機鹼達到控制分散在PMMA高分子基材中二氧化矽(Silica)顆粒的大小，並探討調控苯胺有機鹼為何能使Silica顆粒粒徑產生變化的原因。接著針對PMMA-Silica奈米複合材薄膜因Silica顆粒粒徑大小之不同，作光學性質、熱性質、阻氣性質、表面性質及抗腐蝕性質之比較，並探討抗腐蝕性質提升之原因。
第二部分主要為先從第一部分挑選適當含量之苯胺有機鹼再針對增加分散在高分子基材中之無機物含量作一系列性質之探討，分別比較其在光學性質、熱性質、阻水阻氣性質、抗腐蝕性質上因分散在高分子基材中Silica顆粒數量之不同所造成之影響，並在抗腐蝕性質上藉由電化學阻抗(Electrochemical Impedance Spectroscopy, EIS)之量測來佐證抗腐蝕性能之提升。

關鍵字

溶膠凝膠法 ； 二氧化矽 ； 壓克力

並列摘要

Abstract
This thesis was associated with the property studies of poly (methyl methacrylate)-silica nanocomposite materials prepared by Sol-Gel approach with aniline as organic base catalyst. It was mainly divided into two components. For the first part, we fine-tuned the silica particle size in the PMMA polymer matrix by adjusting the amount of organic base catalyst. We further discussed why the organic base could change silica particle size in PMMA polymer matrix. And then we analyze the variance of optical properties, thermal stability, gas barrier properties, surface properties, anti-corrosion properties that are caused by different particle size of SiO2. Finally, we explained why anti-corrosion properties could be enhanced.
For the second part, we fixed the organic base catalyst and increased the amount of inorganic materials, which where dispersed in the PMMA polymer matrix to compare the effect of increasing particle quantity in optical properties, thermal stability, gas and water barrier properties and anti-corrosion properties. And we could re-confirmed the enhanced anti-corrosion properties by impedance (EIS) measuring.

並列關鍵字

Sol-Gel ； Silica ； PMMA

參考文獻

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