共查询到18条相似文献,搜索用时 93 毫秒
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主要介绍了碳纳米管吸波材料及碳纳米管,磁损耗物质、碳纳米管/高分子聚合物、碳纳米管/磁损耗物质/高分子聚合物复合材料的研究现状,并对其进行展望。 相似文献
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有机聚合物/无机化合物纳米复合阻燃材料研究进展 总被引:2,自引:0,他引:2
综述了有机聚合物/无机化合物纳米复合阻燃材料的研究和应用现状。阐述的纳米复合阻燃材料包括有机聚合物/层状硅酸盐纳米复合材料、有机聚合物/碳纳米管纳米复合材料、有机聚合物/二氧化硅纳米复合材料、有机聚合物/石墨纳米复合材料等。与传统无机阻燃剂填充阻燃材料相比,这类新型纳米复合阻燃材料的填料与基体的亲合性、基体的物理力学性能和阻燃性能等均得到改善。 相似文献
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碳纳米管纳米复合材料的研究现状及问题 总被引:1,自引:0,他引:1
文章介绍了碳纳米管的结构和性能,综述了碳纳米管聚合物复合材料的制备方法及其聚合物结构复合材料和聚合物功能复合材料中的应用研究情况,在此基础上,分析了碳纳米管在复合材料制备过程中的纯化、分散、损伤和界面等问题,并展望了今后碳纳米管/聚合物复合材辩的发展趋势. 相似文献
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聚合物/碳纳米管的研究进展 总被引:6,自引:0,他引:6
碳纳米管具有独特的结构,优异的力学性能、热稳定性与导电性能,与聚合物并用可开发出多种新型复合材料,评述利用直接混合法、原位聚合法与超声波处理法制备聚合物/碳纳米管材料,并讨论该复合材料的力学性能,光电性能与磨擦学性能。 相似文献
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非导电聚合物/碳纳米管功能复合材料研究进展 总被引:1,自引:0,他引:1
碳纳米管具有优异的力学性能、独特的电学性能和电磁波吸收性能等,是非导电聚合物基体的理想增强材料。综述了近年来非导电聚合物/碳纳米管复合材料的制备和性能研究等情况,并讨论了今后的研究发展方向。 相似文献
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碳纳米管具有优异的力学性能、热性能及电性能,因此在聚合物复合材料领域具有巨大的应用潜力。本文侧重介绍碳纳米管在聚合物中作为增强相、功能填料和智能元件方面的应用研究情况,讨论了碳纳米管聚合物复合材料界面、力学性能及应用研究存在的问题,展望了碳纳米管在航空航天复合材料领域的应用前景。 相似文献
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《Carbon》2013
The formation of uniform dispersions from agglomerated carbon nanotubes in polymers is a major challenge for their use in composites. We show that agglomerated carbon nanotubes on top of a thermoplastic polymer are efficiently dispersed when annealing. Annealing is found to disperse carbon nanotubes surprisingly well. We image the dispersion of the nanotubes in the polymer matrix using electron microscopy and Raman mapping. The dispersion of nanotubes depends on whether the tubes are multi, double or single walled. Highly uniform dispersions are found for multi wall tubes while single and double wall carbon nanotubes show less uniform dispersions. 相似文献
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Raman spectroscopy has been used to characterize multiwall carbon nanotubes (MWNTs) styrene-butadiene rubber (SBR) composites.
Raman spectra of the MWNTs/SBR composites excited at different excitation wavelengths show that the dependence of the D band
of carbon nanotubes on the laser energy has the same behavior as that of pure MWNTs. Raman spectra are shown to be sensitive
to the state of dispersion of carbon nanotubes in the polymeric medium. On the other hand, analysis of Raman spectra of uniaxially
stretched composites reveals a weak interface between the polymer and the nanotube surface. 相似文献
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Haiqing Hu Li Zhao Jiaqiang Liu Yin Liu Junmei Cheng Jun Luo Yongri Liang Yong Tao Xin Wang Jian Zhao 《Polymer》2012,53(15):3378-3385
We report a novel, scalable and inexpensive approach to fully disperse carbon nanotubes in silicone rubber by the addition of graphene. In comparison to graphene, the dispersion of multi-walled carbon nanotubes (MWNTs) in silicone rubber matrix is extremely difficult although both of them possess similar physical structure. The different dispersion behavior of graphene and MWNTs could be contributed to the difference in their interaction with polymer matrix and their geometry. Based on SEM, TEM and XRD analysis, we find that the dispersion of MWNTs in silicone rubber is dramatically improved by the addition of graphene. Graphene acts as a compatilizer since it shows strong interaction with both polymer matrix and MWNTs. This method provides a simple route to enhance the dispersion of carbon nanotubes and improve the electrical property of the polymer composites. The synergic effect of the hybrid materials may not to be limited to the applications in polymer composites. 相似文献
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The influence of chemical functionalization on the interfacial bonding characteristics of single-walled nanotubes (SWNTs) reinforced polymer composites was investigated using molecular mechanics and molecular dynamics simulations. The simulations show that functionalization of nanotubes at low densities of functionalized carbon atoms drastically increases their interfacial bonding and shear stress between the nanotubes and the polymer matrix, where chemisorption to as little as 5.0% of the nanotube carbon atoms increases the shear stress by about 1000%. This indicates that increasing the load transfer between SWNTs and a polymer matrix in a composite via chemisorption may be an effective way and chemical attachment of nanotubes during processing may be in part responsible for the enhanced stress transfer observed in some systems of the nanotube-polymer composites. Furthermore, this suggests the possibility to use functionalized nanotubes to effectively reinforce other kinds of polymer-based materials as well. 相似文献
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Jong‐Beom Kim Thathan Premkumar Olivia Giani Jean‐Jaques Robin Francois Schue Kurt E Geckeler 《Polymer International》2008,57(2):311-315
BACKGROUND: Single‐walled carbon nanotubes have inspired research owing to their promise in a broad range of applications. The dispersion of carbon nanotubes is of key importance for the utilization of this interesting material for various potential applications. RESULTS: A novel and simple method was developed to fabricate polymer composites with single‐walled carbon nanotubes based on a solid‐state reaction, in which the nanotubes were reacted with poly(L ‐lysine) using high‐speed vibration milling. Fourier transform infrared and UV‐visible spectroscopy as well as thermogravimetry were employed to characterize the novel composites. The morphology and the dispersion of the carbon nanotubes were determined using scanning and transmission electron microscopy. CONCLUSION: The resulting composites were dispersable in water and are expected to have great potential for both molecular‐level studies and device applications of nanotubes. Copyright © 2007 Society of Chemical Industry 相似文献
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By correlating the curvature of carbon nanotubes to the orientation of fibers in a polymer, the effect of the curvature of nanotubes on the tensile modulus of carbon‐nanotube‐reinforced polymer composites was investigated with a numerical simulation method. The simulation results showed that the tensile modulus of a nanotube‐reinforced composite drops sharply when the nanotubes diverge from their orientation in the axial direction, and the presence of curved nanotubes in the polymer matrix significantly decreases the modulus of the composite. This finding could explain, partly, why in most cases, the predicted tensile modulus of a carbon‐nanotube‐reinforced composite, based on the assumption that the nanotubes are fully isolated and aligned in the polymer matrix, is much higher than the value obtained from experiments. Copyright © 2004 Society of Chemical Industry 相似文献