研究生: |
袁宇呈 Yuan, Yu-Cheng |
---|---|
論文名稱: |
液晶型聚亞醯胺與無機粒子混摻於傳統聚亞醯胺之熱傳導性質研究 Thermal Conductivity of Inorganic Fillers and Liquid Crystal Polyimide Blending with Commercial Polyimide Composites |
指導教授: |
李育德
Lee, Yu-Der |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 化學工程學系 Department of Chemical Engineering |
論文出版年: | 2010 |
畢業學年度: | 98 |
語文別: | 中文 |
論文頁數: | 84 |
中文關鍵詞: | 聚亞醯胺 、熱傳導 |
相關次數: | 點閱:2 下載:0 |
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提升熱傳導能力,為現今材料發展的重要課題。提升導熱能力可以改善部份電子元件於使用上所遭遇之問題,如訊號延遲、電腦受熱當機等。本研究結合有機與無機的方法對軟性電子基板材料聚亞醯胺做改質,希望藉此提升熱傳導能力。在有機方面,摻入液晶型聚亞醯胺增加排列規則性;在無機方面,導入導熱性佳的陶瓷粒子氮化硼,藉由這兩方面有效提升導熱能力。
當複合物之基材使用30 wt%液晶聚亞醯胺且摻入40 wt%表面改質之氮化硼時,將這兩個可改善導熱能力之條件加入,其熱傳導係數從0.3 W/mK提升至0. 83W/mK;介電常數從4.1降至2.875、散逸係數從0.018降至0.0059,彈性模數則從3576 MPa提升至5622 MPa,對於軟性電子所需要之性質要求皆有提升。而由研究結果得知,在定量氮化硼添加下,如果基材導入液晶型聚亞醯胺,其熱傳導係數有再次提升之效果。
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