聚醯亞胺－黏土奈米複合材料之製備與其介電特性之研究

Preparation of Polyimide/Clay Nanocomposite and Its Dielectric Properties Investigation

李世銘(Shih-ming Li)

指導教授 ： 王宏文

中原大學/理學院/化學研究所/碩士(2004年)

https://doi.org/10.6840/cycu200400301

摘要

本論文之主題在製備聚醯亞胺－黏土奈米複合材料及其介電特性之探討；首先將無機蒙脫土以陽離子交換法改質為有基蒙脫土後，再與亞醯胺聚合物單體進行原位聚合反應於黏土層間、以製備一系列不同黏土含量之聚醯亞胺－黏土奈米複合材料。
利用不同黏土含量之聚醯亞胺－黏土奈米複合材料產物，對其無機層材料之特性作一些比較。以XRD之鑑定其分散以達到奈米級分散，TGA研判熱裂解溫度隨黏土增加裂解溫度增加，TEM探討表面型態，發現結晶狀況會因含黏土增加而增加，Clay loading－含黏土增加而吃水量減少，LCR meter 測量材料的介電係數、介電損失，隨黏土增加介電係數而降低。

關鍵字

介電特性 ； 黏土奈米複合材料 ； 聚醯亞胺

並列摘要

This thesis focused on polyimide/Clay nanocmposities.At first, inorganic Motmorilltonite was made into organophilic Motmorilltonite by ion-exchange method. Monomers of Polyimide are mixed with clay in different ratio in order to synthesize polyimide/Clay nanocomposites.
TGA/DSC , TEM , XRD Were employed to investigate the structure and characteristics of synthesized polyimide/Clay nanocomposites. Dielectric properties of these nanocomposites were measured by LCR meter from 30℃ to 150℃ at frequencies of 1KHz to 1MHz.
It was found that dielectric constant decreased at higt temperature and high clay content.

並列關鍵字

Dielectric Properties ； Polyimide/Clay

參考文獻

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