聚合物/层状硅酸盐纳米复合阻燃材料进展概述

介绍了聚合物/层状硅酸盐纳米复合材料的制备方法、结构特点和表征方法,同时对聚合物/层状硅酸盐纳米复合材料的阻燃机理和阻燃性能的应用做了简要说明.     

聚合物／层状硅酸盐纳米复合阻燃材料进展概述

介绍了聚合物／层状硅酸盐纳米复合材料的制备方法、结构特点和表征方法，同时对聚合物／层状硅酸盐纳米复合材料的阻燃机理和阻燃性能的应用做了简要说明。     

新一代潜在阻燃高分子材料--聚合物/无机物纳米复合材料

文章综述了一类新型潜在阻燃高分子材料--聚合物/无机物纳米复合材料。简述了这类材料的特征及制备方法,详述了PPgMA（顺丁烯二酸酐接枝聚丙烯）/LS（层状硅酸盐）及PS/LS两种纳米复合材料的阻燃性能,并讨论了材料结构与阻燃性的关系。     

PLS纳米复合材料

综述了纳米技术的发展概况、纳米复合材料的分类及特性 ,并对 PL S纳米复合材料 (聚合物 /层状硅酸盐纳米复合材料 )的研究进展、性能及应用前景加以总结 ,讨论了 PLS纳米复合材料的阻燃性能、结构和制备方法。PL S纳米复合材料作为新型高性能材料具有诱人的应用前景。     

PMMA纳米复合材料的研究进展和制备方法

主要介绍了PMMA/MWNT纳米复合材料、PMMA/层状硅酸盐纳米复合材料、PMMA/氧化物纳米复合材料这3种常见聚合物基纳米复合材料的制备方法,同时对每种体系特点进行了论述.最后指出纳米复合材料制备方法、应用以及开发新的PMMA基纳米复合体系是今后的主要研究方向.     

熔融插层制备聚合物-层状硅酸盐纳米复合材料研究进展

概述了近年来国内外聚合物—层状硅酸盐纳米复合材料(PLSN)制备领域的研究状况，详细评述和分析了PLSN熔融插层法的特点，指出熔融插层是一种高效和可行的制备聚合物—层状硅酸盐纳米复合材料的方法。     

聚合物/层状硅酸盐纳米复合材料的研究进展

聚合物/层状硅酸盐(PLS)纳米复合材料是一新兴复合材料,具有优异的性能,是当前材料科学的研究热点之一。本文作者首先简要概述了层状硅酸盐的结构及其表面修饰,其中LS的离子交换容量和插层剂的种类是制备PLS纳米复合材料的关键因素之一;然后介绍了PLS纳米复合材料的制备方法、微观结构及其特点,其主要制备方法是插层复合法,包括插层聚合法和聚合物插层法两种;最后展望了PLS纳米复合材料的发展、特性及应用。      

聚合物/层状硅酸盐粘土纳米复合材料的阻燃性能研究

综述了国内外近年来对蒙脱土的有机改性、聚合物/层状硅酸盐纳米复合材料的阻燃性能及其机理研究动向.     

纳米技术在材料阻燃改性中的应用

介绍了纳米技术在阻燃材料中的应用进展。层状硅酸盐、层状双氢氧化物、碳纳米管等制备的聚合物／纳米复合材料，其热稳定性有所提高，但要和阻燃剂协同使用才能达到最佳的阻燃效果。常规阻燃剂的纳米化不仅可以提高阻燃效率，还可降低阻燃剂的添加量，改善阻燃材料的物理机械性能。     

聚合物/层状硅酸盐纳米复合材料

聚合物/层状硅酸盐(PLS)纳米复合材料是近10年迅速发展起来的新交叉科学.由于聚合物纳米复合材料具有常规聚合物复合材料所没有的结构、形态以及较常规聚合物复合材料更优异的物理力学性能、耐热性和气体液体阻隔性能等,因而显示出重要的科学意义和应用前景.综述了聚合物/层状硅酸盐纳米复合材料的制备、结构表征、性能和应用情况,最后展望了其应用前景.     

插层法制备聚合物/层状硅酸盐纳米复合材料的研究进展

插层法可制得性能优异的聚合物／层状硅酸盐纳米复合材料，其基体材料的力学性能、热稳定性、阻燃性及气体阻隔性等得到大幅度改善，近年来受到广泛的重视。文中从制备方法、材料性能及应用等方面较详细地综述了该领域的研究进展情况。     

可生物降解性聚合物-层状硅酸盐纳米复合材料的研究进展

可生物降解性聚合物一层状硅酸盐纳米复合材料比聚合物基体有更好的力学强度、热稳定性、热变形温度、气体阻隔特性和更快的降解速率，表现出剪切变稀、模量升高、似固体行为等流变特性。文中综述了可生物降解性聚合物纳米复合材料的制备方法、表征手段、性能测试及其应用等方面的研究进展。     

Ablation mechanism of polymer layered silicate nanocomposite heat shield

Recent advances in polymer layered silicate nanocomposites especially improve flammability resistance; encourage the examination of this unique class of evolving materials as potential ablatives. Polymer layered silicate nanocomposites show excellent potential as ablative heat shields. Determining the thermal diffusivity together with the mass and energy transfer is an important problem encountered in design of heat shield system which pyrolyses and ablates at high temperature. The aim of this work is to give information on the influence of the experimental conditions to the estimated effective thermal diffusivity of ablative nanocomposite and composite materials. Here, we present the inverse solution to estimate the parameter used to identify the effective thermal diffusivity of resol type phenolic resin-asbestos cloth montmorillonite layered silicate nanocomposite and its composite counterpart. The experimental setup consists of a standard oxyacetylene flame test. The transient temperature measurements, taken from the top surface and through the thickness of the samples, are used in the inverse analysis to estimate the change of the effective thermal diffusivity. The results of this work clarify the mechanism of the ablation and thermal diffusivity of the layered silicate nanocomposite heat shields due to the high temperature degradation in comparison with its composite counterpart.     

Intercalation/Exfoliation mechanism of hybrid formation in polypropylene/lamellar mesostructured silica nanocomposites

Understanding the optimal processing conditions for the fabrication of polymer nanocomposites is of fundamental importance in designing materials with balance of properties. To understand these conditions in the case of maleic anhydride grafted polypropylene (PP-g-MA)/layered mesostructured silica (LMS) nanocomposites, the effect of temperature, shear rate, and residence time during processing on the structure of the nanocomposites were studied. The results showed that the combination of temperature, residence time, and mechanical shears have strong effect on the structure of the nanocomposites, rather than just interfacial interactions between the polymer matrix and silicate layers. However, interfacial interactions between the polymer matrix and silicate layers primarily play an important role to the intercalation of polymer chains into the silicate galleries. On the basis of our experimental results, a first explanation of the formulation mechanism of PP-g-MA/LMS nanocomposites is proposed. Finally, a general concept of processing conditions for manufacturing of polymer nanocomposites by melt-compounding process in a batch-mixer is described.     

聚合物/层状粘土纳米复合材料阻燃性能研究进展

聚合物／层状粘土(PLC)纳米复合材料是近十年来研究的热点。由于PLC纳米复合材料具有常规聚合物复合材料所没有的结构、形态以及较常规材料更加优越的力学性能、耐热性能、气液体的阻隔性能等，所以具有广泛的工业应用前景。文中综述了PLC纳米复合材料的制备、性能、结构及其在阻燃方面应用研究的现状。     

聚合物/层状硅酸盐纳米复合材料的阻燃性能研究进展

从热稳定性能、燃烧和发烟行为、成炭行为、氧指数和UL94阻燃级别等方面,对聚合物/层状硅酸盐纳米复合材料(PLSN)阻燃性能的研究进展进行了综述,分析和探讨了PLSN的阻燃机理,展望了其发展趋势和应用前景。     

粘土/塑料纳米复合材料的新发展

粘土的特殊层状硅酸结构,使其成为无机/有机纳米复合材料中纳米无机组分的最热门来源。几年来,旨在改进层状硅酸盐与聚合物的相容性并增进其在聚合物基体中的分散性研究和工业化技术逐步完善,纳米复合材料的性能优点得到了体现。纳米复合PET树脂及其改性材料在塑料啤酒瓶等高阻隔包装物、耐温高强电子电器用工程塑料制件、阻挡紫外线防老化发射红外线阻燃等多功能特殊纤维等制成品中具有重要价值。纳米复合PC、纳米复合PS树脂呈现良好的耐划痕性能,纳米复合PP具有高耐热性能。     

累托石/聚合物纳米复合材料的新进展

累托石是我国湖北省盛产的铝硅酸盐矿物, 其与蒙脱土极为相似, 但又具有它独特的结构特点, 近年来广泛用于聚合物/层状硅酸盐纳米复合材料的制备. 本文介绍了累托石的结构特性、表面修饰和累托石/聚合物纳米复合材料的结构及制备方法, 总结了累托石/壳聚糖基纳米复合材料及其作为抗菌剂、吸附剂、药物控释材料和基因载体等功能化应用方面的最新研究成果, 并提出了累托石/聚合物纳米复合材料未来的研究方向.     

Polymer Layered Silicate Nanocomposites

Polymer nanocomposites with layered silicates as the inorganic phase (reinforcement) are discussed. The materials design and synthesis rely on the ability of layered silicates to intercalate in the galleries between their layers a wide range of monomers and polymers. Special emphasis is placed on a new, versatile and environmentally benign synthesis approach by polymer melt intercalation. In contrast to in-situ polymerization and solution intercalation, melt intercalation involves mixing the layered silicate with the polymer and heating the mixture above the softening point of the polymer. Compatibility with various polymers is accomplished by derivatizing the silicates with alkyl ammonium cations via an ion exchange reaction. By fine-tuning the surface characteristics nanodispersion (i. e. intercalation or delamination) can be accomplished. The resulting polymer layered silicate (PLS) nanocomposites exhibit properties dramatically different from their more conventional counterparts. For example, PLS nanocomposites can attain a particular degree of stiffness, strength and barrier properties with far less inorganic content than comparable glass- or mineral reinforced polymers and, therefore, they are far lighter in weight. In addition, PLS nanocomposites exhibit significant increase in thermal stability as well as self-extinguishing characteristics. The combination of improved properties, convenient processing and low cost has already led to a few commercial applications with more currently under development.