功能性导热聚合物的性能研究进展

介绍了导热聚合物的种类,分析了导热聚合物的导热机理以及总结了影响导热性能的内外在因素,并展望了导热聚合物的未来发展趋势。     

导热绝缘聚合物复合材料研究

介绍了导热绝缘聚合物复合材料,包括复合型塑料、橡胶、胶粘剂和涂层的研究进展及其导热机理、导热模型的研究情况。讨论了影响导热绝缘聚合物复合材料导热性能的因素、提高导热系数的措施及该种复合材料的制备方法,最后阐述了导热绝缘聚合物复合材料的应用及发展方向。     

聚合物/新型导热填料复合电介质的研究进展

综述了非常规新型导热粒子如纳米金刚石、碳化物、铁电陶瓷及其他无机功能粒子及其填充聚合物电介质的最新研究进展,重点探讨了新型导热粒子的含量、表面改性、加工方式等对聚合物复合材料的导热及介电性能的影响。介绍和分析了基于有机分子晶体为连续声子传递通路改性聚合物导热性能的研究及机理;在基体树脂内利用无机导热粒子及有机分子晶体可构筑连续的声子导热通路,从而达到降低界面热阻、提高体系热导率的目的。相比传统导热粒子,新型导热粒子在提高绝缘聚合物热导率的同时,还赋予体系其他物理性能如磁性、优良介电性能及储能等性能。     

高导热网络聚合物基复合材料的研究进展

介绍了聚合物材料的导热机理;综述了国内外对聚合物基导热复合材料的研究现状;分析了导热聚合物的种类,包括本征型导热聚合物和填充型导热聚合物;其中填充型包括单一填料填充、混合填料填充以及双逾渗结构填充。最后,重点介绍了聚合物材料构建导热网络的种类及方法,并对高导热聚合物基复合材料未来的发展方向进行了展望。     

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。     

聚合物基导热复合材料的研究进展

阐述了聚合物基导热复合材料的导热机制。综述了国内外导热胶粘剂、导热橡胶和导热塑料等研究进展。介绍了提高复合材料导热性能的途径,并在此基础上,展望了聚合物基导热复合材料的应用前景和未来的发展方向。     

聚合物基导热电子封装材料的研究进展

概述了电子封装材料常用的基体材料、导热填料及制备方法。阐述了聚合物本征导热的影响因素及填料物理性能对聚合物基复合体系导热性能的影响。重点介绍了复合型导热聚合物的导热机理、导热模型以及提高复合体系热导率的途径。对今后的研究工作提出了建议。     

碳纳米管/聚合物复合材料的导热模型进展

综述了以聚合物为基体的碳纳米管复合材料导热模型,分析了复合材料热传导体系中碳纳米管(CNTs)填料的作用机制,归纳了混合规则导热模型、均质模型、有效介质模型、非均质模型和随机分散模型等,并总结了导热模型常用的数值计算方法。这些模型丰富了导热理论,可以对复合材料导热系数进行初步预测,但在数值上都存在近似或者简化处理,对碳纳米管/聚合物复合材料预测广谱性较差。未来需要对分子尺寸和界面热阻等影响导热系数的关键因素深入探究,改善数值和表征分析方法,以期为碳纳米管/聚合物复合材料的导热性能的研究和设计提供参考,为其他复合材料导热性能的研究提供借鉴。     

导热硅脂研究进展

介绍了导热硅脂的导热机制。分别阐述了聚合物和导热填料的选择,同时建立了简易的导热填料填充示意图,并综述了金属氧化物填充、金属氮化物填充以及其他特种导热材料填充等制备导热硅脂的最新研究进展。最后对导热硅脂的发展方向进行了展望。     

高导热聚合物基纳米复合材料的研究进展

综述了以纳米粉体、纳米纤维和碳纳米管(CNT)等为填料的高导热型聚合物基纳米复合材料的研究进展,并介绍了其导热机制和导热理论模型。最后,提出了高导热型聚合物基纳米复合材料中存在的问题,并对其发展方向进行了展望。     

Some aspects of using differential thermal analysis for studying polymers

A typical diagram is presented for an instrument for differential thermal analysis of polymers and methodological recommendations for the technique for conducting DTA studies are given. Typical thermograms obtained with DTA are analyzed. The diagram for the cup for conducting differential thermal analysis of polymers at high pressures is described. A conclusion is drawn concerning the promise of DTA for studying polymers both at atmospheric and at high pressure. __________ Translated from Khimicheskie Volokna, No. 3, pp. 55–58, May–June, 2006.     

Trends in Conducting Polymer and Hybrids of Conducting Polymer/Carbon Nanotube: A Review

Several conducting polymers, including polyaniline, polypyrrole, polythiophene, polyvinylpyrrolidone, poly(3,4-ethylenedioxythiophene), poly(m-phenylenediamine), polynaphthylamine, poly(p-phenylene sulfide), and their carbon nanotube reinforced nanocomposites are discussed in this review. The physical, electrical, structural and thermal properties of polymers along with synthesis methods are discussed. A concise note on carbon nanotubes regarding their purification, functionalization, properties and production are reported. Moreover, the article focuses upon synthesis methods, properties and applications of conducting polymer/carbon nanotube nanocomposites are focused. Nanotube dispersion, loading concentration and alignment within conducting polymer/carbon nanotube nanocomposite affect their performance and morphology. The conducting polymer/carbon nanotube nanocomposites are substantially used in sensors, energy storage devices, supercapacitors, solar cells, EMI materials, diodes, and coatings.     

芳香族电子导电聚合物的研究进展

主链型芳香族聚合物具有热稳定性高、化学稳定性好、质地轻且牢固以及良好的加工成型性等优点，其作为导电聚合物材料的应用正受到人们越来越多的关注。本文综述了芳香族电子导电聚合物的研究进展，并指出存在问题和解决方法。     

σ-π共轭聚硅烷的光、电、热学性质

低聚硅烷基（σ共轭链节）与芳基、烯、炔基（π共轭链节）的交替共聚物融合了两类聚合物的特性。具备优越性能,文章就其独特的光学、电学、热学性质进行叙述。     

导电聚合物复合材料作为超级电容器电极材料

本文综述了基于导电聚合物的复合材料(导电聚合物/碳材料、导电聚合物/金属氧化物材料、导电聚合物/碳材料l金属氧化物材料)作为电极材料在超级电容器中的应用进展,指出将导电聚合物与碳材料或金属氧化物复合,双电层电容与法拉第准电容结合,有机材料与无机材料结合,是超级电容器电极材料研究的重要发展方向.     

Protonenleitende Komposit‐Membranen für zukunftsorientierte Anwendungen in Brennstoffzellen,Entsalzungsanlagen und in der Photokatalyse

Inorganic filler materials are often incorporated into polymer membranes to improve their mechanical, thermal and chemical stabilities. In case of proton‐conducting polymers, however, it is necessary to support or at least not to disturb the proton‐conducting matrix. By suitable combination of polymer and filler, effective and highly conductive composite membranes can be prepared. This article gives an overview of the possible applications of a special kind of such proton‐conducting composite membranes containing functionalized SiO₂ particles with ordered mesoporosity in fuel cell, in desalination and in photocatalysis.     

Synthesis and properties of conducting polypyrrole,polyalkylanilines, and composites of polypyrrole and poly(2‐ethylaniline)

Conducting polymers of alkylanilines, pyrrole, and their conducting composites were synthesized by oxidation polymerization. The oxidants used were KIO₃ and FeCl₃ for the polyalkylanilines and polypyrrole (PPy), respectively. Among the polyalkylanilines synthesized with KIO₃ salt, the highest conductivity was obtained with poly(2‐ethylaniline) (P2EAn) with a value of 4.10 × 10^?5 S/cm. The highest yield was obtained with poly(N‐methylaniline) with a value of 87%. We prepared the conducting composites (PPy/P2EAn and P2EAn/PPy) by changing synthesis order of P2EAn and PPy. The electrically conducting polymers were characterized by IR spectroscopy, ultraviolet–visible spectroscopy, thermogravimetric analysis, and X‐ray diffraction spectroscopy. From the results, we determined that the properties of the composites were dependent on the synthesis order of the polymers. The thermal degradation temperature of PPy was observed to be higher than that of the other polymers and composites. We determined from X‐ray results that the structures of the homopolymers and composites had amorphous regions (88–95%) and crystal regions (5–12%). From the Gouy balance magnetic measurements, we found that the polymers and composites were bipolaron conducting mechanisms. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 241–249, 2006     

嵌段共聚物为模板合成纳米结构导电聚合物材料研究进展

简述了以嵌段共聚物为模板合成纳米结构导电聚合物材料的国内外发展状况。近年来,纳米结构导电聚合物材料作为极具研究价值的新型功能材料而成为了材料科学的研究热点。以嵌段共聚物为模板则是制备此类材料最有前途的方法之一。本文详细地总结并归纳了通过该方法制备形貌规整的纳米级导电聚合物材料的成形机理、实验方法及其影响因素等。最后总结了纳米结构导电聚合物材料相关研究中存在的诸多问题,并简要指出以嵌段共聚物为模板有助于提高导电高聚物的形貌及尺寸的可控性,进而有助于改善导电高聚物的溶解性、加工性能、电导率等各项性能,也将有利于拓宽导电高聚物在纳米科技领域中的应用前景。     

噻吩类导电高聚物的研究进展

噻吩类聚合物是研究较为广泛的功能高分子材料。详述了通过化学氧化聚合法和电化学氧化聚合法所合成的噻吩类导电聚合物的性能和用途,常用的结构与性能表征方法以及噻吩类导电聚合物在光、电、磁等各种领域中的应用。