| PP/空心玻璃微珠复合材料非等温结晶研究 |
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| 引用本文： | 李军伟,赵巍,李勇. PP/空心玻璃微珠复合材料非等温结晶研究[J]. 现代塑料加工应用, 2012, 24(1): 5-8 |
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| 作者姓名： | 李军伟 赵巍 李勇 |
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| 作者单位： | 天津城市建设学院材料科学与工程系,天津,300384 |
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| 摘 要： | 采用熔融共混挤出的方法,制备了聚丙烯(PP)/空心玻璃微珠(HGB)复合材料,用差示扫描量热法研究了PP和PP/HGB复合材料的非等温结晶过程,并通过Jeziorny和莫志深方程研究了非等温结晶动力学。结果表明,随降温速率的增大,PP和PP/HGB复合材料的结晶峰温和结晶度降低,结晶速率增大;HGB的加入降低了PP的结晶速率。
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| 关 键 词： | 聚丙烯 空心玻璃微珠 复合材料 非等温结晶动力学 |
Non-Isothermal Crystallization of PP/HGB Composites |
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| Li Junwei , Zhao Wei , Li Yong. Non-Isothermal Crystallization of PP/HGB Composites[J]. Modern Plastics Processing and Applications, 2012, 24(1): 5-8 |
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| Authors: | Li Junwei Zhao Wei Li Yong |
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| Affiliation: | Li Junwei Zhao Wei Li Yong(Department of Materials Science and Engineering, Tianjin Institute of Urban Construction,Tianjin,300384) |
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| Abstract: | The polypropylene/hollow glass beads(PP/HGB) composites were prepared by a melt-extrusion method,and the non-isothermal crystallization behavior of pure PP and PP/HGB composites was characterized via a differential scanning calorimetry(DSC).The non-isothermal crystallization kinetics of the samples were discussed by Jeziorny and Mo equations,respectively.The results show that with increasing of the cooling rate,the crystallization temperature and crystallinity of PP and PP/HGB composites decrease,while the crystallization rate increases.However,HGB reduces the crystallization rate of PP. |
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| Keywords: | polypropylene hollow glass beads composites non-isothermal crystallization kinetics |
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