| FI—IR研究PP／EPDM共混物表面与本体的结晶形态 |
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| 引用本文： | 林贤福 吴丹. FI—IR研究PP／EPDM共混物表面与本体的结晶形态[J]. 高分子材料科学与工程, 2000, 16(2): 158-160 |
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| 作者姓名： | 林贤福 吴丹 |
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| 作者单位： | 浙江大学分析测试中心!浙江杭州310027 |
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| 摘 要： | 用ＦＴ－ＩＲ方法研究了ＰＰ／ＥＰＤＭ共混物表面与本体的结晶形态，结果表明，随着ＥＰＤＭ含的增加，９９７ｃｍ＾－１吸收峰的位置不变，但峰宽变小，测算ＰＰ的结晶度的Ａ９９８／Ａ９７２比值随着变化，从表面与本体比较来看，一是表面ＰＰ结晶状态吸收峰是在９９７．０ｃｍ＾－１，而本体系在９９７．８ｃｍ＾－１即向低波数方向移动；二是表面非结晶状态吸收峰９７２ｃｍ＾－１增加较多，这都都共混物表面与本体ＰＰ结晶度及
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| 关 键 词： | 聚丙烯 共混物 结晶形态 FT－IR 三元乙丙橡胶 |
| 修稿时间： | 1998-11-17 |
STUDY ON THE CRYSTALLINITY AND MORPHOLOGY IN SURFACE AND BULK OF PP/EPDM BLENDS BY FOURIER TRANSFORM INFRARED |
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| LIN Xian fu,WU Dan,LIU Qin,CHEN Zhi chun. STUDY ON THE CRYSTALLINITY AND MORPHOLOGY IN SURFACE AND BULK OF PP/EPDM BLENDS BY FOURIER TRANSFORM INFRARED[J]. Polymer Materials Science & Engineering, 2000, 16(2): 158-160 |
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| Authors: | LIN Xian fu WU Dan LIU Qin CHEN Zhi chun |
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| Abstract: | The crystallinity and morphology in surface and buld of PP/EPDM blends were studied by FT IR and FT IR ATR. As the content of EPDM in the blends increases, the width of 997 cm -1 band which is characteristic of PP segments at least five monomers helical conformation gradually decreases, and the intensity ratio of 997/972 used for determining the degree of crystallinity are change. There are lower frequency (from 997.8 cm -1 to 997.0 cm -1 ) and heigher 997 cm -1 band at the surface of PP/EPDM blends. The results show a lower PP degree of crystallinity and more complex crystalline morphology at surface of PP/EPDM blends. |
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| Keywords: | PP PP/EPDM blends crystalline morphology in surface and bulk FT IR ATR |
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