研究生: |
林義倫 Yi-lun Lin |
---|---|
論文名稱: |
聚苯乙烯馬來酸酐共聚合物之合成及與環氧樹脂硬化行為之研究 A study on synthesis and characterization of the Poly(styrene maleic anhydride) copolymer and the curing behavior of epoxy resins |
指導教授: |
邱顯堂
Hsien-tang Chiu |
口試委員: |
陳志堅
Jyh-chien Chen 陳建光 Jem-kun Chen |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 材料科學與工程系 Department of Materials Science and Engineering |
論文出版年: | 2012 |
畢業學年度: | 100 |
語文別: | 中文 |
論文頁數: | 84 |
中文關鍵詞: | 聚苯乙烯馬來酸酐 、馬來酸酐 、雙酚A型環氧樹脂 、混摻 |
外文關鍵詞: | Styrene maleic anhydride(SMA) |
相關次數: | 點閱:387 下載:11 |
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本研究乃在探討依四種不同比例硬化劑(SMA/MA)使用公、自轉高速均質脫泡攪拌機攪拌進行複合混摻再與雙酚A型環氧樹脂(DGEBA)進行硬化反應,實驗主要分成兩部分。第一部分是合成聚苯乙烯馬來酸酐共聚合物(SMA),合成後進行核磁共振光譜 (1H NMR) 、傅立葉轉換紅外線光譜(FT-IR)、膠體滲透層析(GPC)、元素分析(EA)、熱示差掃描量熱分析(DSC)、熱重損失分析(TGA)及溶解度等分析鑑定。由核磁共振光譜圖可知成功合成聚苯乙烯馬來酸酐共聚合物、其Mw為22000、玻璃轉移溫度為205oC。在氮氣中最大熱裂解溫度(Tdmax)為390 oC。且易溶於工業上常用之溶劑,故在加工使用上相當方便。
第二部分則是以SMA、MA及DGEBA分成四種比例進行混摻硬化,並對硬化後樹脂的熱性質與物理性質加以研究探討,以傅立葉轉換紅外線光譜(FT-IR) 、熱示差掃描量熱分析(DSC)、熱重損失分析(TGA)、熱動態機械分析(DMA)及抗曲測試等分析。經由傅立葉轉換紅外線光譜分析及熱示差掃描量熱分析可觀察出硬化之結構與放熱行為。各硬化後樹脂在氮氣中最大熱裂解溫度(Tdmax)皆在365 oC以上。玻璃轉移溫度約在70 oC。在熱動態機械分析中發現,隨著SMA比例愈高之硬化樹脂試片,其網狀結構較緻密、交聯密度較大。故SMA/MA/DGEBA之熱穩定性優異,經複合混摻後之應用更加廣泛。
In this study, we aim to analyze the curing behavior between SMA/MA and DGEBA. The four different ratios of SMA/MA hybrid hardener were well-blended using planetary mixer and cured with DGEBA. The experimental were divided into two parts. Part (i) described the synthesis of SMA, and the results were examined through HNMR, FTIR, GPC, EA, DSC, TGA and solubility. From 1H NMR result, the SMA was synthesized successfully and the properties were Mw (22000), Tg(205 oC) and Tdmax (390 oC).The solubility was high and easy for use.
Part (ii) described the effects of four different ratios of SMA/MA hybrid hardener on the properties of cured DGEBA. The experimental was carried out via FT-IR, DSC, TGA, DMA and bending test. From FTIR and DSC results, the curing behavior and structure could be observed which the Tdmax (>90%) and Tg(~70 oC) of all cured DGEBA. Moreover, the network density and cross-linking degree of cure DGEBA increased with the increase in SMA ratio. Therefore, SMA/MA/DGEBA exhibited the high thermal stability in various applications.
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