| 双酚A聚砜对PBT的结晶与多重熔化行为的影响 |
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| 引用本文： | 邓卓,曾一兵.双酚A聚砜对PBT的结晶与多重熔化行为的影响[J].高分子学报,1990,0(3):339-344. |
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| 作者姓名： | 邓卓 曾一兵 |
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| 作者单位： | 北京大学化学系 北京
(邓卓)，北京理工大学 北京(曾一兵) |
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| 摘 要： | 本文研究了PBT结晶的熔化行为及非晶性组分PSF的加入对PBT结晶度及熔化行为的影响。结果表明:PBT结晶熔化时的DSC双峰图为多重熔化行为而非多晶型的结果;PSF的加入对PBT结晶度影响不大,但对多重熔化行为有明显影响。此乃PSF无定形组分加入后,使PBT结晶速率减慢而形成更完善的PBT结晶之缘故。
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| 关 键 词： | PSF/PBT共混物 多重熔化 PBT结晶度 熔点升高 |
| 收稿时间： | 1989-01-05 |
THE INFLUENCE OF PSF ON THE CRYSTALLIZATION AND THE MUTIPLE-MELTING BEHAVIOR OF PBT |
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| DENG Zhuo,ZENG Yi-bing.THE INFLUENCE OF PSF ON THE CRYSTALLIZATION AND THE MUTIPLE-MELTING BEHAVIOR OF PBT[J].Acta Polymerica Sinica,1990,0(3):339-344. |
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| Authors: | DENG Zhuo ZENG Yi-bing |
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| Institution: | Peking University; Beijing 100871; Beijing University of Science and Technology; Beijing |
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| Abstract: | The crystallization and mutiple-melting behavior of PBT crystals in PSF/PBT blend films, the influence of blend compositions on these behaviors were studied by DSC, IR and viscoela-stometer. The experimental results show that the double-peaks in DSC plots are owing to mutiple-melting behavior but not to polymorphy in PBT crystals. The crystallinity of PBT is not affected by addition of PSF component but mutiple-melting behavior is by this. This is due to the influence of the addition of PSF on the perfection of PBT crystals. |
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| Keywords: | PFS/PBT blend Multiple-melting Crystallinity of PBT Melting point elevation |
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