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PVC/粘土纳米复合材料的研究进展 总被引:6,自引:0,他引:6
概述了PVC/粘土纳米复合材料的研究及发展现状,总结了离子交换、偶联剂处理、接枝改性等粘土的表面处理方法及直接熔融插层、原位插层聚合、共混等PVC/粘土纳米复合材料的制备方法,并分析了PVC/粘土纳米复合材料的性能及其发展前景。 相似文献
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聚合物纳米复合材料的制备方法 总被引:17,自引:0,他引:17
从纳米微粒的分散方法以及纳米复合材料的成型技术两方面综述了国内外纳米复合材料的制备方法的发展状况,总结了纳米微粒填充法与紫外光辐射固化技术的结合在制备纳米复合材料方面的几种优点,认为该方法是未来聚合物无机纳米复合材料的主要、新型制备方法。 相似文献
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随着纳米高新技术发展,聚合物/层状硅酸盐(PLS)近年来发展较快,对其研究已引起广泛关注。在介绍PLS纳米阻燃复合材料的阻燃机理和主要制备方法的基础上,总结了其主要应用状况,展望了PLS纳米阻燃复合材料的应用前景。指出绿色阻燃技术将是纳米阻燃复合材料的发展趋势,将来必有很大的发展潜力。 相似文献
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γ-射线辐射法制备聚合物/无机纳米复合材料的研究进展 总被引:1,自引:0,他引:1
分析总结了γ-射线辐射法制备聚合物/无机纳米复合材料的制备方法、辐射合成的特点,并对辐射法制备纳米复合材料作了分析与展望。 相似文献
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Maria Cristina Righetti Alessia Boggioni Michele Laus Diego Antonioli Katia Sparnacci Luca Boarino 《应用聚合物科学杂志》2013,130(5):3624-3633
Polyethersulphone/polytetrafluoroethylene (PES/PTFE) nanocomposites and composites were prepared by precipitation of PES into a PTFE latex‐containing nanoparticles. Different samples were obtained by varying the relative ratio between PES and PTFE. The complex crystallization process, discussed within the fractionated crystallization frame, allowed to identify and quantify different dispersion degree of the PTFE nanoparticles within the PES matrix. The different samples were thus divided into nanocomposite and composites. The effect of crystalline PTFE domains on the mobility of PES was investigated and discussed. The dynamic‐mechanical behavior was explained in terms of the particle aggregation state. The mechanical properties of the PES/PTFE composites were found to depend on both the dispersion and the concentration of the PTFE nanoparticles. In the glassy state the stiffness of the materials was found to increase with the dispersion degree, resulting higher for the nanocomposite with respect to composites. On the contrary, in the rubbery state the modulus was found proportional to the PTFE nanoparticles concentration, resulting higher in the composites with respect to the nanocomposite. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 3624–3633, 2013 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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有机-无机复合材料因其优异的性能广泛应用于多个行业及领域,无机相分散度是决定复合材料质量、保证产品性能发挥的重要因素。因此,对复合材料中无机相分散度的有效评价是构筑高品质复合材料的关键步骤。本文介绍了有机-无机复合材料中无机相分散度的传统表征方法及亟待解决的问题。针对这些问题,综述了三维荧光成像法对有机-无机复合材料中无机相分散度的可视化评价研究进展:通过前染修饰、后染定位两种染色技术实现对无机相的染色识别;基于三维成像技术对复合材料中无机相进行定位及微观形貌分析;对无机相在介观尺度、三维空间的分散度进行定性及定量分析。该方法不仅适用于对复合材料制备工艺的筛选,也可用于对成品材料的现场无损分析。最后总结并展望了复合材料结构可视化的未来研究方向。 相似文献
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Dong H. Nam Seung I. Cha Byung K. Lim Hoon M. Park Do S. Han Soon H. Hong 《Carbon》2012,50(7):2417-2423
CNT/Al–Cu composites were fabricated by mixing of Al powders and CNT/Cu composite powders which were prepared by molecular level mixing process. The CNT/Al–Cu–Cu composites show a microstructure with a homogeneous dispersion of CNTs in the Al–Cu matrix and had a 3.8 times increase of yield strength and 30% increase of elastic modulus compared to Al–Cu matrix. The strengthening mechanism of CNT/Al–Cu composites was discussed by controlling the aspect ratio of CNTs and it was thought that the CNT/Al–Cu composites were strengthened by both load transfer from the Al matrix to the CNTs and dispersion strengthening of damaged short CNTs. At the same time, the addition of CNTs increases the grain refinement effect of the Al–Cu matrix which results in a grain size strengthening mechanism of the CNT/Al–Cu composites. 相似文献
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以聚乙二醇单甲醚(MPEG)为亲水单体,聚己二酸新戊二醇酯(PNA)、异佛尔酮二异氰酸酯(IPDI)为原料,通过丙酮法制备了聚氨酯分散体(PUD)。再以过硫酸铵为氧化剂,在PUD中氧化聚合PEDOT制备了导电聚氨酯分散体,并经IR、动态光散射和TEM表征,结果表明,导电聚氨酯复合材料形成了以PU乳胶粒子为核,导电聚合物PEDOT为壳的核壳形态,探讨了核壳粒子形成过程。利用自制的导电聚氨酯分散体配制得到了抗静电涂料,并成功应用于PET塑料基材。 相似文献