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題名 | Kinetic Study of Epoxy Cure in Epoxy/Unsaturated Polyester Blend=環氧樹脂/不飽和聚酯摻合物中環氧樹脂硬化之動力學研究 |
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作者 | 石燕鳳; | 書刊名 | 材料科學 |
卷期 | 30:4 1998.12[民87.12] |
頁次 | 頁292-296 |
分類號 | 467.4 |
關鍵詞 | 動力學研究; 環氧樹脂; 不飽和聚酯; 催化反應; 熱差掃描分析儀; Kinetic study; Epoxy; Unsaturated polyester; Catalyzed; DSC; |
語文 | 英文(English) |
中文摘要 | 環氧樹脂/不飽和聚酯摻合物以重量比例100/0、75/25混合,以間二甲苯二氨 (MXDA) 作為環氧樹脂之硬化劑,以對苯二酚作為不飽和聚酯之抑制劑。 環氧樹脂之硬化反 應分別在 53 ℃,58 ℃,64 ℃進行並作動力學之探討。環氧基濃度之變化係以熱差掃描分 析儀作分析。實驗結果顯示摻合物中環氧樹脂之無催化及催化反應之速率常數皆比純環氧樹 脂高,可能是不飽和聚酯中之氫氧端基對環氧樹脂有催化作用之緣故。在本文中針對各 項動力學參數作計算及討論。 |
英文摘要 | Simultaneous interpenetrating polymer networks (SIN) based on diglycidyl ether of bisphenol-A(DGEBA) and unsaturated polyester (UP)in weight ratios of 100/0, and 75/25 were blended using m-xylenediamine (MXDA) as curing agent for DGEBA, and adding hydroquinone as inhibitor for UP. A knetic study for epoxy cure was carried out at 53, 58, and 64 ℃. Concentration changes for epoxide were monitored with Differential Scanning Calorimetry (DSC) . Experimental results revealed that epoxide cure indicated higher rate constants for both uncatalyzed and catalyzed reactions, compared with those of pure DGEBA cure, presumably the catalytic effect of hydroxyl end groups in UP played an catalytic role. Kinetic parameters were calculated and discussed. |
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