无机纳米材料的制备技术及其进展

系统地阐述了无机纳米材料的液相法、固相法和气相法等制备技术,以及国内外在无机纳米材料制备方法研究上的进展。     

纳米材料改性塑料的研究进展

综述了国内外纳米材料改性塑料的最新进展，介绍了无机纳米材料改性塑料常见的制备方法、制备的关键技术及纳米材料改性塑料的性能特点与表征方法。无机纳米材料改性塑料具有优异的物理力学性能、热稳定性、电性能及加工性能，在许多领域具有广阔的应用前景。     

简述纳米材料制备方法

纳米材料的制备在其研究领域占据重要地位，制备工艺和方法对纳米材料的结构和性能有较大的影响。本文介绍了近年制备纳米材料常用的方法，并对各自特点进行比较。     

浅析纳米材料的液相制备方法及其表征

综述了渡相法制备纳米材料的主要方法，包括溶胶-凝胶法、沉淀法、水热法和微乳液法，分别介绍了各种方法的特点；另外还介绍了用于表征纳米材料的几种常用表征手段，即X-射线衍射法（XRD）、透射电镜（TEM）和缀外吸收光谱法（IR）。指出了纳米材料技术制备研究中存在的问题，并对其今后的研究与发展作出了建议与展望。     

模板法制备纳米材料研究进展

模板法可以有效控制所合成纳米材料的形貌、结构和大小,因而成为目前制备纳米材料的一种重要手段。本文主要综述了软、硬模板法制备纳米材料的研究进展,重点介绍几种高分子聚合物为模板制备无机纳米材料的基本原理和主要特点,并在此基础上提出了模板法制备纳米材料需要解决的问题和应用前景。     

无机纳米材料在涂料中的应用

综述了无机纳米材料在涂料中的应用及研究状况，着重介绍了纳米TiO2,SiO2,ZnO,CaCO3,FeO4等纳米颗粒的特征及制备防老化，隐身，抗静电，光催化，随角异色效应等5种涂料的应用及其进展，介绍了无机纳米材料在有机介质中的物理分散和化学分散方法，纳米材料在涂料中的应用前景广阔。     

无机纳米材料研究进展

简要介绍无机纳米材料的种类,优异的热性能、力性能、电性能及其广泛应用．并举例将此类纳米材料的性能与普通材料的性能进行比较,详细综述金属纳米材料和无机非金属纳米材料的制备方法和表征方法。     

纳米材料在塑料改性中的应用研究进展

讨论了纳米无机粒子在塑料改性中的功能及作用，综述了纳米无机粒子在塑料性能改善方面的研究进展；介绍了纳米材料改性塑料的制备方法，提出了制备纳米塑料应该注意的问题。     

纳米材料的制备进展

介绍了目前国内外纳米材料的物理和化学制备方法，介绍了纳米材料的研究新进展和纳米材料的开发和应用前景。     

反胶束微乳法制备无机功能纳米材料

介绍了微乳法制备无机纳米粒子的一般实验室方法 ,讨论了影响粒径及其分布的有关因素。比较了微乳液法与传统的制备方法的优劣 ,探讨了无机功能纳米材料研究进展并提出了今后研究工作的展望。     

纳米复合聚氯乙烯抗增塑剂迁移性能的研究

研究了纳米无机粒子复合改性半硬质聚氯乙烯片材中增塑剂在空气中的挥发损失和在甲苯中的迁移损失情况。结果发现，不同纳米粒子种类(CaCO3、SiO2、MMT)、形状以及添加量对增塑剂的迁移和挥发有着不同的影响,纳米粒子的复合改性提高了聚氯乙烯片材或薄膜的抗增塑剂迁移性能。     

纳米TiO2在水基体系中分散的研究

研究了不同体系、表面活性剂、分散剂、pH等因素对纳米材料分散的影响;通过不同手段对纳米材料和涂料的性质进行表征,从而改善了纳米TiO2在水基体系中的分散性.     

纳米材料在舰艇防锈涂料中的应用研究

选用新型纳米颜填料，从其加入、分散方式的影响等方面，对纳米材料在舰船防锈涂料中的应用效果进行评价，并制定了舰船复合纳米防锈涂料的基本指导配方。     

纳米涂料的研究进展

概述了纳米材料的特性及其在涂料中的应用;介绍了纳米涂料的制备及国内外的研究进展。     

纳米炭材料

纳米材料与炭材料同为材料领域研究热点,二者结合之纳米炭材料具有特殊的性能,其潜在的应用领域囊括了信息、生物、环境保护等各个方面.但各类纳米炭材料结构、性能及应用的研究,有的才刚刚起步,有的尚属空白.本文较系统地归纳了最新研究成果,提出了"纳米炭材料"的概念,并概述了各类纳米炭材料的制备、性能及应用.认为:随着研究的深入,其应用领域还将进一步扩展,并将带来可观的社会及经济效益.     

Effect of nano-scale texture pretreatment on wear resistance of WC/Co tools with/without TiAlN coated flank-face in dry turning of green Al2O3 ceramics

Advanced ceramics after sintering are almost processed by grinding or non-traditional machining. Nevertheless, these methods are limited by complexity of processing efficiency, tool wear and economic effectiveness. So machining green ceramics before sintering is introduced, it is environmentally friendly, efficient and cheap with high removal rate of materials. During dry turning green ceramics, flank-wear of tools and processing quality of compacts are two main elements to evaluate cutting performance of tools. The processing efficiency and economic effectiveness are mainly effected by the cutting performance of tools. In this paper, polished tool, tool with nano-scale textured flank-face, tool with TiAlN coating deposited on polished flank-face, and tool with TiAlN coating deposited on nano-scale textured flank-face were prepared. Effect of nano-scale texture pretreatment on wear-resistance of WC/Co tools with/without TiAlN coated flank-face was studied in turning of green Al₂O₃ ceramics. Results displayed that nano-scale textures on the flank-face had prominent effects on the enhancement of flank-wear resistance of tools. Relevant mechanisms were explored that nano-scale textures exhibited “derivative cutting” to protect unworn face from abrasion, and nano-scale textures pretreated on the flank-face could enhance the adhesion strength between coating and matrix. These developed tools could also significantly improve the processing quality of machined surfaces.     

Microstructure design and preparation of Al2O3/TiC/TiN micro-nano-composite ceramic tool materials based on properties prediction with finite element method

The objective of this paper was to improve the accuracy of semi-empirical method used to design ceramic cutting tool materials. The mechanical properties were predicted by employing finite element model of material microstructure, so as to design microstructure and prepare new ceramic materials. Based on the Voronoi and randomness method, the microstructure model representing the complexity and randomness of micro-nano-composite ceramic material microstructure was established. Combining the representative volume element (RVE) of ceramic material microstructure with mechanical tests, the simulations of mechanical tests were conducted to acquire the flexure strength, fracture toughness and hardness of materials. The microstructure models with various parameters were designed and the material properties were predicted to determine the optimal microstructure parameters. Then, The ceramic cutting tool materials possessing the optimal microstructure parameters were developed for machining ultra-high strength steels. The results showed that the mechanical properties of ceramic materials first improved and then declined as the nano-scale TiC volume fraction increased. To obtain the best comprehensive mechanical properties, the contents of micro-scale TiN, TiC and nano-scale TiC were set as 20%, 10% and 10%, respectively. The prepared ceramic materials possessed the flexure strength of 881.4 MPa, the fracture toughness of 7.8 MPa m^1/2, and the Vickers hardness of 20.8 GPa. This research is beneficial to the development of cutting tool design theory and the improvement of the tool life.     

Chemical reduction of nano-scale Cu2Sb powders as anode materials for Li-ion batteries

A novel process was attempted to prepare nano-scale Cu₂Sb alloy powders as anode materials for Li-ion batteries. The preparation started with chemical reduction of Cu₂Sb in an aqueous solution with sodium citrate as a complexing agent and KBH₄ as a reducer. The analysis of scanning electron microscopy and X-ray diffraction showed that as-prepared nano-scale Cu₂Sb powders presented tetragonal structure with particle size of 50-70 nm. Cycling between 0 and 1.2 V, the nano-scale Cu₂Sb alloy showed good cyclability with a stable specific capacity of 200 mAh g⁻¹ within 25 cycles.     

明胶基静电纺丝复合纤维材料的研究进展

明胶是一种来源广泛且价格低廉的天然高分子物质，动物皮、骨及筋腱等生物来源和制革过程中产生的废革屑是其重要来源。明胶具有良好的生物相容性和可生物降解性，因此被广泛地应用于柔性电子、医药等工业领域。静电纺丝法是制备微纳米级纤维的常用方法，具有操作简便、成本低廉、条件温和等优势，已成为制备微纳米级纤维材料的主要途径之一。通过该法制备的明胶纤维具有高比表面积和长径比，纤维膜的孔隙率和力学强度可调，与其他物质复合纺丝后可获得传感、抗菌、自修复、过滤等性能，极大地拓宽了其应用前景。本文综述了静电纺丝技术的发展现状、以明胶为原料制备复合纤维材料的工艺参数和复合方法，并详细介绍了明胶基静电纺丝材料在众多领域中的应用现状。最后，展望了明胶基静电纺丝材料的发展趋势及应用前景。     

纳米材料在建筑涂料中的应用

详细介绍了纳米材料在建筑涂料中的应用及研究情况。利用纳米材料特殊性质,开发和制备新型、性能优异的建筑涂料,具有广阔的应用和开发前景。