| 碳纳米管改性方法对聚酰胺11性能影响研究 |
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| 引用本文： | 李波,龚军,金学义,孟晓宇. 碳纳米管改性方法对聚酰胺11性能影响研究[J]. 中国塑料, 2022, 36(2): 61-66. DOI: 10.19491/j.issn.1001-9278.2022.02.010 |
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| 作者姓名： | 李波 龚军 金学义 孟晓宇 |
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| 作者单位： | 1.中海油田服务股份有限公司，河北 三河 0652012.中国石油大学（北京），北京 102249 |
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| 摘 要： | 采用酸处理和聚乙烯亚胺(PEI)表面修饰两种方法对多壁碳纳米管(MWCNTs)进行改性,将改性碳纳米管与聚酰胺11(PA11)熔融共混,制备了聚酰胺11/酸刻蚀碳纳米管(PA11/a-MWCNTs)和聚酰胺11/聚乙烯亚胺接枝碳纳米管(PA11/PEI-MWCNTs)复合材料,并通过扫描电子显微镜(SEM)、热重分析仪...
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| 关 键 词： | 聚酰胺11 聚乙烯亚胺 多壁碳纳米管 复合材料 |
| 收稿时间： | 2021-09-23 |
Effect of carbon nanotube modification method on properties of polyamide 11 |
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| LI Bo,GONG Jun,JIN Xueyi,MENG Xiaoyu. Effect of carbon nanotube modification method on properties of polyamide 11[J]. China Plastics, 2022, 36(2): 61-66. DOI: 10.19491/j.issn.1001-9278.2022.02.010 |
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| Authors: | LI Bo GONG Jun JIN Xueyi MENG Xiaoyu |
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| Affiliation: | 1.China Oilfield Services Co，Ltd，Sanhe 065201，China2.China University of Petroleum （Beijing），Beijing 102249，China |
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| Abstract: | In this paper,two surface modification methods,acid treatment and polyethyleneimine(PEI)grafting,were employed to modify multi-walled carbon nanotubes(MWCNTs).The resultant acid-etched MWCNTs(a-MWCNTs)and PEI-grafted MWCNTs(PEI-MWCNTs)were melt blended with polyamide 11(PA11)to obtain the PA11/a-MWCNTs and PA11/PEI-MWCNTs composites.Their microscopic morphology,dispersibility,thermal stability,crystallinity and mechanical properties were investigated using scanning electron microscope,thermogravimetric analyzer,infrared spectrometer,and differential scanning calorimeter.The results indicated that the PA11/PEI-MWCNTs composites exhibited much better performance.When the content of PEI-MWCNTs was 3 wt%,the composites achieved tensile strength of 62.7 MPa and a Young’s modulus of 1017 MPa,which are higher than pure PA11 by 37%and 65%,respectively.In addition,their degree of crystallinity increased by 14.6%. |
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| Keywords: | polyamide 11 polyethyleneimine multi-walled carbon nanotube composite material |
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