頁籤選單縮合
題名 | Isothermal Crystallization and Melting Behavior of Short Carbon Fiber Reinforced Poly (Ether Ether Ketone) Composites= |
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作者 | Chao,Shiou-chang; Chen,Ming; Chung,Chia-ting; |
期刊 | Journal of Polymer Research |
出版日期 | 19981000 |
卷期 | 5:4 1998.10[民87.10] |
頁次 | 頁221-226 |
分類號 | 346.84 |
語文 | eng |
關鍵詞 | PEEK; Composites; DSC; Crystallinity; Melting; |
英文摘要 | Films of short carbon fiber reinforced poly(ether ether ketone)(PEEK) composite were formed by compression molding pellets for 10 min at 380℃ under air. A heating stage was used to prepare isothermally treated PEEK composited before DSC scan. The dependence of degree of crystallinity on the heating rate (10-80℃╱min) was investigated for specimens crystallized at different temperatures. The results indicated that 50℃╱min was an optimum heating rate to suppress the reorganization and to avoid the superheating of high crystallinity specimens with the sample weight of 10 mg. The upper peak temperature of double-melting peaks continued to increase with crystallization temperature. This peak temperature was related to the transition from regime Ⅱ to Ⅲ. The phenomenon of lower crystallinity and higher melting temperature supports the interpretation that the upper melting peak corresponded to crystals growing during the earlier stage of isothermal crystallization. |
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