Effect of carbon nanotube pre-treatment on dispersion and electrical properties of melt mixed multi-walled carbon nanotubes / poly(methyl methacrylate) composites

Won Ki Park; Jung Hyun Kim; Sang-Soo Lee; Junkyung Kim; Geon-Woong Lee; Min Park

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Effect of carbon nanotube pre-treatment on dispersion and electrical properties of melt mixed multi-walled carbon nanotubes / poly(methyl methacrylate) composites

机译：碳纳米管预处理对熔融混合多壁碳纳米管/聚甲基丙烯酸甲酯复合材料分散性和电性能的影响

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Multi-walled carbon nanotubes (MWNTs) pre-treated by concentrated mixed acid or oxidized at high temperature were melt mixed with poly(methyl methacrylate) (PMMA) using a twin screw extruder. The morphologies and electrical properties of the MWNT/PMMA composites were investigated. The thermally treated MWNTs (t-MWNTs) were well dispersed, whereas the acid treated MWNTs (a-MWNTs) were highly entangled, forming large-sized clusters. The resulting electrical properties of the composites were analyzed in terms of the carbon nanotube (CNT) dispersion. The experimental percolation threshold was estimated to be 3 wt% of t-MWNTs, but no percolation occurred at similar concentrations in the a-MWNT composites, due to the poor dispersion in the matrix.

机译：使用双螺杆挤出机将经过浓混合酸预处理或在高温下氧化的多壁碳纳米管（MWNT）与聚甲基丙烯酸甲酯（PMMA）熔融混合。研究了MWNT / PMMA复合材料的形貌和电性能。热处理的MWNT（t-MWNT）分散良好，而酸处理的MWNT（a-MWNT）高度缠结，形成大型簇。根据碳纳米管（CNT）的分散度分析了复合材料的电性能。实验的渗透阈值估计为t-MWNTs的3 wt％，但由于在基质中的分散性较差，在a-MWNT复合材料中没有发生相似浓度的渗透。

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来源
《Macromolecular Research》 |2005年第3期|206-211|共6页
作者
Won Ki Park; Jung Hyun Kim; Sang-Soo Lee; Junkyung Kim; Geon-Woong Lee; Min Park;
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作者单位

Department of Chemical Engineering Yonsei University;

Department of Chemical Engineering Yonsei University;

Polymer Hybrids Research Center Korea Institute of Science and Technology;

Polymer Hybrids Research Center Korea Institute of Science and Technology;

Polymer Hybrids Research Center Korea Institute of Science and Technology;

Polymer Hybrids Research Center Korea Institute of Science and Technology;

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原文格式 PDF
正文语种 eng
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关键词
carbon nanotubes; CNT/polymer composites; electrical conductivity; acid treatment; thermal treatment; melt mixing;

机译：碳纳米管;碳纳米管/聚合物复合材料;电导率;酸处理;热处理;熔体混合;

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1. Effect of Carbon Nanotube Pre-treatment on Dispersion and Electrical Properties of Melt Mixed Multi-Walled Carbon Nanotubes / Poly(methyl methacrylate)Composites [J] . Won Ki Park, Jung Hyun Kim, Sang-Soo Lee, Macromolecular Research . 2005,第3期

机译：碳纳米管预处理对熔融混合多壁碳纳米管/聚甲基丙烯酸甲酯复合材料的分散和电学性能的影响
2. Effect of multi-walled carbon nanotube dispersion on the electrical and rheological properties of poly(propylene carbonate)/poly(lactic acid)/multi-walled carbon nanotube composites [J] . Park D.H., Kan T.G., Lee Y.K., Journal of Materials Science . 2013,第1期

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4. Effect of Non-Covalent Chemical Modification on the Electrical Conductivity and Tensile Properties of Poly(methyl methacrylate)/Carbon Nanotube Composites [C] . Ozcan KOYSUREN, Mustafa KARAMAN, Demet OZYURT Technical Conference of the Society of Plastics . 2014

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6. Near-Edge X-ray Absorption Fine Structure Studies of Electrospun Poly(dimethylsiloxane)/Poly (methyl methacrylate)/Multiwall Carbon Nanotube Composites [O] . A. Douglas Winter, Eduardo Larios, Faisal M. Alamgir, -1

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机译：多壁碳纳米管对聚丙烯纳米复合材料性能的影响。聚丙烯纳米复合材料中多壁碳纳米管的分散和排列增强，及其对机械，热，流变和电性能的影响。

Effect of carbon nanotube pre-treatment on dispersion and electrical properties of melt mixed multi-walled carbon nanotubes / poly(methyl methacrylate) composites

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