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溶胶凝胶法在聚合物/无机纳米复合材料中的应用 总被引:9,自引:0,他引:9
本文对溶胶凝胶法在聚合物/无机纳米复合材料中的应用进行了综述.并对溶胶凝胶法在橡胶增强、光学仪器、功能化涂层以及其它领域中的应用进行了具体的讨论.指出溶胶凝胶过程工艺条件的优化以及分散介质范围的扩大将是溶胶凝胶法在聚合物/无机纳米复合材料中应用的发展方向. 相似文献
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聚合物基纳米复合材料的合成、性能及应用前景 总被引:4,自引:0,他引:4
介绍了聚合物/无机纳米复合材料、聚合物/聚合物纳米复合材料的制备方法、性质、发展方向以及应用前景。对聚合物基纳米复合材料今后的发展提出了一些自己的见解。 相似文献
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聚合物基纳米复合材料的合成、性质及应用前景 总被引:7,自引:0,他引:7
介绍了聚合物 无机纳米复合材料、聚合物 /聚合物纳米复合材料的制备方法、性质、发展方向以及应用前景。对聚合物基纳米复合材料今后的发展提出了一些自己的见解 相似文献
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无机粒子/聚合物复合材料的结晶行为 总被引:5,自引:0,他引:5
综述了无机粒子和纳米粒子/聚合物复合材料的一些结晶性能,主要论述无机粒子对聚合物结晶的熔点、结晶温度及结晶度的影响;聚合物晶形及结构的变化;并论述了无机粒子和纳米粒子/聚合物复合材料的结晶动力学理论;概括了无机粒子和纳米粒子/聚合物复合材料的结晶影响因素。 相似文献
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有机/无机纳米复合材料的研究进展 总被引:1,自引:0,他引:1
近年来纳米科技得到了迅速发展,由无机纳米粒子与聚合物复合制备的有机/无机纳米复合材料成为现代材料科技发展的重要方向.概述了有机/无机纳米复合材料的制备方法和性能特点;介绍了有机/无机纳米复合材料的应用领域,最后对它的发展前景进行了展望. 相似文献
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Wilberforce SI Best SM Cameron RE 《Journal of materials science. Materials in medicine》2010,21(12):3085-3093
The application of bioresorbable polymer nanocomposites in orthopaedics offer the potential to address several of the limitations
associated with the use of metallic implants. Their enhanced biological performance has been demonstrated recently, but until
now relatively little work has been reported on their mechanical properties. To this end, the viscoelastic properties and
Tg of bioresorbable polylactide-co-glycolide/α-tricalcium phosphate nanocomposites were investigated by dynamic mechanical thermal
analysis. At room temperature of approximately 20°C, the storage moduli of the nanocomposites were generally higher than the
storage modulus of the unfilled polymer due to the stiffening effect of the nano-particles. However at physiological temperature
of approximately 37°C, the storage moduli of the nanocomposites decreased from 6.2 to 15.4% v/v nano-particle loadings. Similarly
the Tg of the nanocomposites also decreased from 6.2 to 15.4% v/v nano-particle loadings. These effects were thought to be due to
weak interfacial bonding between the nano-particles and polymer matrix. The storage moduli at 37°C and Tg increased from the minimum value when the particle loading was raised to 25.7 and 34.2% v/v loadings. SEM and particle size
distribution histograms showed that at these loadings, there was a broad particle size distribution consisting of nano-particles
and micro-particles and that some particle agglomeration was present. The consequent reduction in the interfacial area and
the number of weak interfaces presumably accounts for the rise in the storage modulus at 37°C and the Tg. 相似文献
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聚合物/无机物纳米复合材料研究进展及应用前景 总被引:5,自引:0,他引:5
聚合物和无机物在纳米及水平上的复合,将使各自的优势得到最充分的体现,聚合物/无机物纳米复合材料的研究已成为当今高分子材料科学与工程等许多学科的前沿领域,显示出重要的科学意义和良好的应用前景。文中简要概速了聚合物/无机物纳米复合材料的研究现状及应用前景. 相似文献
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聚合物/无机物纳米复合材料研究现状 总被引:4,自引:0,他引:4
纳米材料是继单组分材料,复合材料和梯度材料之后的第四代材料,聚合物/无机物纳米复合材料的研究已成为当今高分子化学与物理,无机化学和材料化学等诸多交叉学科的前沿领域,聚合物和无机物在纳米及分子水平上的复合,将使各自的优势得到最充分的体现,简要概述了聚合物/无机物纳米复合材料的制备方法,结构与性能及其应用。 相似文献
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There is much current interest to incorporate nano-scale fillers into polymer matrices to achieve potentially unique properties. Compared with traditional microcomposites, a nanocomposite has a significant large ratio of interface area to volume that results in improved thermomechanical properties. Desired thermomechanical properties of polymer nanocomposites, to achieve the ever-increasing performance requirements, can be obtained by tailoring their microstructures. To this end, computational analyses of the relations between the thermomechanical properties, e.g., Young’s modulus, shear modulus, Poisson’s ratio, yield strength, coefficient of thermal expansion and coefficient of thermal conductivity, in different directions and the microstructures of polymer nanocomposites are performed. The asymptotic homogenization method based on the finite element analysis is used to model the thermomechanical behaviors of different polymer nanocomposites with periodic microstructures. The effects of adding silica, rubber, and clay nanoparticles to epoxy resin as a polymer matrix are analyzed. Mixtures of the nano-particles which differ in volume fraction, material type, size and/or geometry are considered. Some predictions of the thermomechanical properties are compared with experimental data in order to verify the applied modeling technique as an effective design tool to tailor optimal microstructures of polymer nanocomposites. 相似文献
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Esteves AC Monteiro OC Barros-Timmons AM Boemare C Soares MJ Monteiro T Trindade T 《Journal of nanoscience and nanotechnology》2002,2(2):177-181
Hybrid materials consisting of SiO2/CdS particles dispersed in poly(styrene-co-maleic anhydride) and poly(styrene-co-maleimide) have been synthesized and characterized. The polymer nanocomposites were synthesised in situ in the presence of previously prepared inorganic fillers (SiO2/CdS). The nanocomposites were synthesized with the use of as-prepared or surface-modified SiO2/CdS fillers. For both types of nanocomposites, the optical properties were evaluated and the observation of size quantization effects in the optical spectra is discussed. In this context, the influence of the inorganic fillers and polymer matrices on the optical properties of the final nanocomposites was investigated. 相似文献
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聚合物/无机复合材料在介电材料领域的应用 总被引:5,自引:0,他引:5
综述了传统聚合物/无机杂化材料在介电材料领域应用的最新进展,以及聚合物/无机纳米复合材料作为介电材料应用的进展,特别是复合材料作为高储能、高介电强度、低损耗介电材料的研究进展和前景。 相似文献