聚合物基磁性复合材料

综述了聚合物基磁性复合材料的组成、制备、用途，介绍了作者的最新研究情况，并研讨了今后聚合物基磁性复合材料的发展、应用前景及制备方法的发展方向。     

纳米复合材料研发最新成就——Nanocomposites 2007专题研讨会回顾

近年来，世界发达国家制订的新材料发展战略都把纳米复合材料的发展放到重要位置。研究方向主要包括纳米聚合物基复合材料、纳米碳管功能复合材料、纳米钨铜复合材料。由于纳米复合材料具备了优良的综合性能，被广泛应用于航空航天、国防、交通、体育等领域。     

水泥基功能复合材料研究进展及应用

介绍了国内外水泥基功能复合材料的研究进展及应用,重点对几种重要的水泥基功能复合材料,如导电、压电、介电、磁性、屏蔽等材料的组成、特性、工艺及发展状况进行了综述.     

聚合物基氧化石墨烯纳米复合材料研究进展

氧化石墨烯作为石墨烯的重要衍生物,原料来源广泛,制备过程简单,成本低廉,具有优异力学性能、耐磨性能以及吸附性能等,其还原产物具有优良的导电性能和导热性能等,是聚合物基纳米复合材料的理想填料。近年来,随着复合材料制备方法的不断革新,聚合物基氧化石墨烯纳米复合材料得到了快速发展,并在储能、阻燃等领域实现了规模化应用,有助于引领聚合物基氧化石墨烯纳米复合材料相关产品的进一步开发和应用。本文系统介绍了氧化石墨烯的改性方法,综述了聚合物基氧化石墨烯纳米复合材料的研究进展,展望了聚合物基氧化石墨烯纳米复合材料的发展前景。     

磁性纳米粒子/污泥基复合材料吸附性能研究进展

随着城市污水处理厂数量和规模的不断发展,污泥的处理与资源化利用成为环保领域的热点问题。制备磁性纳米粒子/污泥基复合材料处理水环境中的污染物是污泥资源化研究的重要方向之一,可达到污泥资源化利用及环境修复的双重目的。综述了磁性纳米粒子/污泥基复合材料的制备方法、吸附实验研究方法、吸附影响因素及吸附机理,并对磁性纳米粒子/污泥基复合材料的发展前景及研究方向进行了展望。     

汽车用聚合物基复合材料的新进展

本文调研了美洲、欧洲、亚洲等地区汽车用复合材料近几年来的应用进展,从新材料应用、新工艺技术创新等角度,论述了聚合物基复合材料在世界各国汽车工业应用中的应用概况和现状,例举了包括免喷涂SMC、低密度SMC、环境友好SMC在内的热固性聚合物基复合材料以及LFT等热塑性聚合物基复合材料在汽车工业应用的最新进展情况,论述了聚合物基复合材料工艺技术、汽车零部件模块化技术和聚合物基复合材料原辅材料、设备最新进展,并概述了聚合物基复合材料今后的发展趋势。     

聚合物基纳米复合材料的制备与研究

综述了聚合物基纳米复合材料的分类及制备方法．分别从无机纳米粒子改性、蒙脱土插层改性以及碳纳米管改性等方面阐述了近年来聚合物基纳米复合材料的研究状况。纳米粒子团聚是聚合物基纳米复合材料制备过程中存在的主要问题之一。实现工业化是聚合物基纳米复合材料的发展方向。     

聚合物基复合材料电阻焊接技术研究进展

聚合物基复合材料以其优异的特性在各领域广泛应用,聚合物基复合材料的熔融连接技术一直是研究的重点。本文系统地综述了影响电阻焊接接头质量的加热元件、焊接压力和输入功率等工艺参数和焊接过程的温度分布情况,讨论了热固性聚合物基复合材料电阻焊接的实现及电阻焊接有限元模型的建立,展望了聚合物基复合材料电阻焊接技术未来的研究方向。     

九十年代树脂基复合材料工业发展趋势

一、总的趋势树脂基复合材料,在其半个世纪的发展呖程中,大多数时间里一直被称为纤维增强塑料(FRP),目前也仍是法定称谓之一,国内外均如此。本领域的全国性标准化组织就称为全国纤维增强塑料标准化技术委员会。近一、二十年来,树脂基复合材料的叫法越来越普遍;也有称之为聚合物基复合材料。这三个述语之间,虽然存在某些差别,但原则上应当认为是同义词,代表着同一类材料,同一个工业领域。从学科的意义上讲,定义为聚合物基复合材料或许更确切些。但是,在确定任何一类材料的名称时,不应当也不可能仅仅根据其学     

高导热复合材料研究进展

综述了高导热型聚合物基纳米复合材料的导热机理、填充型复合材料的导热模型、高导热型聚合物基复合材料及其导热填料的研究现状。最后,提出了高导热型聚合物基纳米复合材料存在的问题,并对其发展方向进行了展望。     

无宏观缺陷水泥基复合材料的水敏特性及其破坏机理研究

无宏观缺陷（ＭＤＦ）水泥基复合材料的水敏性问题是这种高抗折强度瓣致命弱点。本工作研究了高铝水泥／聚乙烯醇基ＭＤＦ复合材料吸温后对其物理力学性能和生观结构的影响。结果表明,ＭＤＦ复合材料在１００％相对湿度中的吸湿过程初始受扩散动力学控制,吸湿量取决于聚合物的含量,水透过复合材料的扩散系数为１０＾０８ｃｍ＾２／ｓ数量级;其在水中的强度随浸水时间的延长连续下降,同时伴有不可忽视的一膨胀。ＭＤＦ复合材料的     

凹凸棒土/聚合物复合材料研究进展

综述了凹凸棒土在聚合物中的应用研究进展。研究表明，大多数情况下，常规的聚合物加工技术不足以将凹凸棒土解离为纳米短纤维，因此只能形成凹凸棒土／聚合物微米复合材料，但将凹凸棒土进行有机改性，可以明显提高其增强效果。采用原位聚合的方法可以制备出性能优异的凹凸棒土／聚合物纳米复合材料，或在高黏度和高极性的聚合物熔体中，凹凸棒土在剪切力下可以解离为纳米单晶，从而形成纳米复合材料。利用凹凸棒土／乳液共混共凝方式也可制备出凹凸棒土／橡胶纳米复合材料。     

Next generation high‐performance carbon fiber thermoplastic composites based on polyaryletherketones

Interest in carbon fiber reinforced composites based on polyaryl ether ketones (PAEKs) continues to grow, and is driven by their increasing use as metal replacement materials in high temperature, high‐performance applications. Though these materials have seen widespread use in oil, gas, aerospace, medical and transportation industries, applications are currently limited by the thermal and mechanical properties of available PAEK polymer chemistries and their carbon fiber composites as well as interfacial bonding with carbon fiber surfaces. This article reviews the state of the art of PAEK polymer chemistries, mechanical properties of their carbon fiber reinforced composites, and interfacial engineering techniques used to improve the fiber‐matrix interfacial bond strength. We also propose a roadmap to develop the next generation of high‐performance long fiber thermoplastic composites based on PAEKs. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 44441.     

Kenaf‐filled biodegradable composites: rheological and mechanical behaviour

Biodegradable polymer composites, typically based on biodegradable polymer matrices and natural‐organic fillers, are gaining rising interest and importance over the last few years. Several natural‐organic fillers can be used but the most widespread so far is wood, in the form of fibres or flour. Alternative cellulosic fillers can ensure advantages in terms of resource utilization and properties of the final composite. In this work, Mater‐Bi^® based biodegradable composites were prepared with two kinds of wood flour, and directly compared with alternative composites containing kenaf fibres. The use of kenaf fibres allowed improved elastic modulus, tensile strength and interaction with the polymer matrix to be obtained, although the filler dispersion was worse. Rheological measurements evidenced higher viscosity and an increasingly elastic behaviour of the melt. Copyright © 2012 Society of Chemical Industry     

可靠性理论在聚合物基复合材料结构中的应用

对国内外近几年来聚合物基复合材料结构可靠性的研究状况,本文研究了聚合物基复合材料可靠性的理论研究成果和复合材料可靠性优化设计及失效分析等内容.着重介绍了随机有限元法(SFEM),结合研究的成果分析了实际工程中存在的问题,如聚合物基复合材料层合板的优化设计、结构的失效分析等,并对该方向的研究提出了新的建议.     

Conducting property of carbon black filled poly(ethylene glycol)/poly(methyl methacrylate) composites as gas‐sensing materials

To reveal the role of crystalline polymers in carbon black (CB) filled amorphous polymer composites and improve the mechanical properties of composite films, CB/poly(ethylene glycol) (PEG)/poly(methyl methacrylate) (PMMA) composites were synthesized by polymerization filling in this work. The electrical conductive property and response to organic solvent vapors of the composites were investigated. The composites, characterized by a relatively low percolation threshold (～ 2.1 wt %), had lower resistivity than CB/PMMA composites prepared with the same method because of the different dispersion status of CB particles in the matrix polymer. The concentration and molecular weight of PEG notably influenced the electrical response of the composites against organic vapors. The drastic increase in the electrical resistance of the composites in various organic vapors could be attributed mainly to the swelling of the amorphous polymer matrix in the solvent but not to that of the crystalline polymer. These findings could help us to understand the conductive mechanism and electrical response mechanism of the composites as promising gas‐sensing materials. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2008     

Chemical Resistance,Mechanical and Physical Properties of Biofibers-Based Polymer Composites

A study on physical and chemical properties along with mechanical characterization of Hibiscus Sabdariffa fiber-reinforced Phenol–Formaldehyde resin matrix based polymer composites have been reported. Effect of fiber dimension on mechanical properties was evaluated. The interfacial bonding between Hibiscus Sabdariffa fiber and polymer matrix has been found to affect the properties of polymer matrix. It has been observed that particle reinforced polymer composites exhibit better mechanical properties as compared to short and long fiber reinforced polymeric composites. These composites were further subjected to evaluation of morphological, thermal, physical (swelling and moisture absorption) and chemical properties.     

Polymer-polymer composites fabricated by the in situ release and coalescence of polymer chains from their inclusion compounds with urea into a carrier polymer phase

Inclusion compounds (ICs) can be formed between small-molecule hosts and guest polymers, where the crystalline host lattice confines the guest polymers to occupy narrow cylindrical channels. The included polymers are highly extended by the narrow channel diameters and are separated from neighboring polymer chains by the walls of the small-molecule host lattice. It is possible to coalesce the polymer chains from their ICs by exposure to a solvent for the small-molecule host which is not a solvent for the included polymer chains. When crystallizable polymers are coalesced from their ICs by solvent treatment, they are observed to crystallize in an extended-chain morphology accompanied by much less chain-folding than occurs when crystallization of the same polymers take place from their disordered melt or solution environments. In this report we outline our initial efforts to create polymer-polymer molecular composites based on the coalescence of polymer chains from their IC crystals with urea, which were previously embedded in a carrier polymer phase. Both film and fiber composites made with chemically identical or distinct IC-included and carrier polymers are described. Water vapor permeation, differential scanning calorimetry (DSC) and microscopic observations are used to probe these composites; and several applications are suggested. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 281–287, 1997     

碳纳米管／聚合物复合材料的研究进展

综述了碳纳米管／聚合物复合材料的最新研究进展。重点介绍了碳纳米管／不同种类聚合物复合材料的制备方法、表面改性和碳纳米管增强复合材料的力学性能。     

Effect of metal oxides added onto polyvinyl alcohol via pulsed underwater plasma on their thermal,electrical and dielectric properties

Flexible electronics require materials with high breakdown strength, high dielectric constant, and thermal stability. These conditions are met by composites based on polymers and metal oxides. In this article, we present a new one-step method for producing composites based on water-soluble polyvinyl alcohol (PVA) and metal oxides (AlOOH, CuO, and ZnO). The source of oxides is underwater plasma. The oxides are introduced into the polymer matrix when plasma is exposed to the polymer solution. The results of X-ray, IR, and SEM analysis showed that metal oxides are embedded in the polymer. Differential scanning calorimetry measurements have shown that the glass transition temperature depends on the oxide being incorporated. The electrical properties of polymer composites were studied by current–voltage characteristics. Dielectric properties were measured in the range of 25–10⁶ Hz. The properties of obtained PVA + metal oxide showed that using underwater plasma is a suitable method for producing composites for electronic devices.