| 超声辐照制备聚醋酸乙烯酯/碳纳米管/炭黑导电复合材料 |
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| 引用本文： | 陈薇,聂敏.超声辐照制备聚醋酸乙烯酯/碳纳米管/炭黑导电复合材料[J].广州化工,2014(16):67-69. |
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| 作者姓名： | 陈薇 聂敏 |
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| 作者单位： | 高分子材料工程国家重点实验室,四川大学高分子研究所 |
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| 摘 要： | 采用两步法制备了导电性聚醋酸乙烯酯/碳纳米管/炭黑复合材料。实验结果表明:超声辐照乳液聚合比常规搅拌能更有效地破坏CNTs的团聚和缠绕,实现其均匀分散。因而CNTs可作为"桥梁"连接导电炭黑,形成导电网络,增加复合材料中形成的导电通路数,增大载流子在导电粒子间的跃迁几率,提高聚醋酸乙烯酯/炭黑复合材料的导电率。当聚醋酸乙烯酯/炭黑复合材料中含有0.28%碳纳米管时,复合材料的电阻率从7.7×104Ω·cm降低到3.9×103Ω·cm,下降了19倍。
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| 关 键 词： | 碳纳米管 超声辐照技术 导电材料 复合材料 |
Polyvinyl Acetate/Carbon Nanotubes/Carbon Black Conductive Nanocomposites Prepared via Ultrsound Irradiation |
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| CHEN Wei;NIE Min.Polyvinyl Acetate/Carbon Nanotubes/Carbon Black Conductive Nanocomposites Prepared via Ultrsound Irradiation[J].GuangZhou Chemical Industry and Technology,2014(16):67-69. |
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| Authors: | CHEN Wei;NIE Min |
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| Affiliation: | CHEN Wei;NIE Min;State Key Laboratory of Polymer Materials Engineering,Polymer Research Institute of Sichuan University; |
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| Abstract: | The conductive poly vinyl acetate/carbon nanotubes/carbon black composites were prepared using two steps.The experimental results showed that the ultrasonic irradiation was more effectively destroy the reunion of CNTs and winding than conventional emulsion polymerization mixing , realize it＇s evenly dispersed.So CNTs can be used as a ＆quot;bridge＆quot;to connect conductive carbon black , to form the conductive network , the number of conductive pathways in composite materials and the transition probability of the carrier in conductive particles were increased , and the electric conductivity of polyvinyl acetate/carbon black composites improved.When the polyvinyl acetate/carbon black composites contained 0.28%carbon nanotubes , the resistivity of composites reduced from 7.7 ×10^4Ω· cm to 3.9 cm ×10^3Ω· cm, fell 19 times. |
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| Keywords: | carbon nanotube uhrasonic irradiation technology conducting material composites |
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