| 乙酰苯胺对聚氯乙烯微观结构和性能的影响 |
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| 引用本文： | 刘亚群,张超灿. 乙酰苯胺对聚氯乙烯微观结构和性能的影响[J]. 武汉理工大学学报, 2007, 29(6): 5-7,15 |
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| 作者姓名： | 刘亚群 张超灿 |
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| 作者单位： | 1. 武汉理工大学材料科学与工程学院,武汉,430070;武汉理工大学理学院,武汉,430070
2. 武汉理工大学材料科学与工程学院,武汉,430070 |
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| 摘 要： | 利用差示扫瞄量热法、广角X-射线衍射和扫瞄电镜方法研究了乙酰苯胺质量分数对聚氯乙烯（PVC）的结晶度、微观形态和宏观机械性能的影响。结果表明：随着乙酰苯胺质量分数的增加,PVC结晶度先增后降,当乙酰苯胺质量分数为3%时,PVC结晶度最大,拉伸强度也最大;微观结构逐渐由均匀的云片状结构变成网络结构,且网络的完善性先增后降,使得材料的韧性先增后降。当乙酰苯胺质量分数为20%时,材料的断裂伸长率增大至纯PVC的10倍左右。
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| 关 键 词： | 聚氯乙烯 机械性能 微观形态 结晶度 |
| 文章编号： | 1671-4431（2007）06-0005-03 |
| 修稿时间： | 2007-02-09 |
Influence of Acetanilide on the Microstructure and Mechanical Properties of Poly (Vinyl Chloride) |
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| LIU Ya-qun,ZHANG Chao-can. Influence of Acetanilide on the Microstructure and Mechanical Properties of Poly (Vinyl Chloride)[J]. Journal of Wuhan University of Technology, 2007, 29(6): 5-7,15 |
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| Authors: | LIU Ya-qun ZHANG Chao-can |
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| Affiliation: | 1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070; 2. School of Sciences, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | In this paper,the influences of acetanilide content on the microstructure and macro properties of polyvinyl chloride(PVC)were studied by means of differential scanning calorimetry,wide angle X-ray diffraction and scanning electron microscope.The results indicated that following the increase of acetanilide loading,PVC crystalline was raised first and then decreased,when acetanilide content was 3%,PVC crystalline reached the maximum and the tensile strength was the strongest;the micro morphology was changed from an even cloud-like structure to an fiber-like network,and the perfection of the network was raised first and then lowered,as made the elongation at rupture rise first and then decline. When acetanilide content was 20%,the elongation at break point rose to about 10 times of pure PVC. |
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| Keywords: | polyvinyl chloride mechanical properties micromorphology crystallinity |
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