多孔导电聚碳酸酯/炭黑复合材料的制备

介绍了一种新颖的制备聚碳酸酯/炭黑复合材料的方法.该方法使用高速混合机把高分子树脂溶液和炭黑粉末混合而成型,通过SEM分析发现,制得的材料横截面由直径大约0.1 μm的树脂纤维和乙炔炭黑的团聚物交错缠绕而成.     

导电增韧聚甲醛的制备及性能

探讨了炭黑和抗静电剂改性硅油分别使用与协同使用对聚甲醛(POM)导电性能和力学性能的影响,同时研究了增韧剂聚氨酯弹性体(TPU)对POM导电性能和力学性能的影响。结果表明:炭黑和改性硅油配合使用,可使POM的表面电阻率达到102Ω,而其力学性能也比单独使用炭黑有所改善。增韧剂TPU进一步提高了导电POM的冲击强度,但使导电POM的表面电阻率增加到106Ω。     

聚碳酸酯片材的挤出成型与应用

关于聚碳酸酯片材的挤出成型,诸如对树脂的要求、螺杆结构特性、机头类型、压延方法等作了详细的叙述,同时还论述了国内外片材挤出成型的应用领域。     

炭黑石墨填充复合导电涂料的制备研究

制备了一种以炭黑和石墨为导电填料的复合型导电涂料,分别研究了炭黑填充和石墨填充的导电涂层性能,确定了采用炭黑、石墨混合填充的导电涂料体系,详细研究了混合填料的比例及含量对涂层导电性能的影响。     

PP/SEBS基导电复合材料的研制

以聚丙烯(PP)和(苯乙烯/乙烯/丁烯/苯乙烯)共聚物(SEBS)的共混物为基体材料,通过掺杂炭黑和碳纤 维,用开炼法制备了一种高电导率的导电复合材料,其体积电阻率小于0.1Ω·cm,并作为集流体材料应用于全钒氧 化还原液流电池。     

多孔导电聚碳酸酯/碳黑复合材料制备

介绍了一种新颖的制备聚碳酸酯／碳黑复合材料的方法。该方法使用高速混合机把高分子树脂溶液和碳黑粉末混合而成型,通过SEM分析发现,制得的材料横截面由直径大约0．1μm的树脂纤维和乙炔碳黑的团聚物交错缠绕而成。     

炭黑／橡胶导电复合材料的电阻率—温度特性的研究

本文研究了几种橡胶与不同用量的ISAF,CF组成的导电复合材料的电阻率——温度(p——T)特性。结果发现:极性不饱和度大的橡胶(CR、NBR)导电复合材料电阻率受温度影响大,特别是60份CF的CR复合材料具有明显的电阻(率)(PTC)特性,电阻事变化达四个数量级。非极性不饱和度小的橡胶(EPDM、IIR)导电复合材料,其电阻率不受温度影响。本文还研究了温度对导电复合材料电流——电压(I——V)特性的影响,进一步证明其p——T特性。文中还对几种橡胶导电复合材料的P——T特性的机理进行探讨。     

导电塑料的电阻率与压力关系研究

研究炭黑填充聚偏二氟乙烯导电塑料在使用环境压力变化时电阻率的变化规律。研究结果表明,当环境压力在０．１￣１２ＭＰａ变化时,塑料基体与填料炭黑同时发生弹性变形,对炭黑导电链影响不大,电阻率较稳定,该种导电塑料可以在压力有较大变化的环境下使用。     

可导电玻璃纤维增强聚丙烯材料的性能分析

研究了导电炭黑(CB)的不同添加方式、不同导电炭黑母粒含量对玻璃纤维增强聚丙烯材料的表面电阻率、力学性能和熔体流动速率的影响.结果表明,导电炭黑母粒对聚丙烯材料的分解温度没有影响;导电通路的形成与导电炭黑在玻璃纤维增强聚丙烯体系中的分散性有关;添加导电炭黑母粒体系中更有利于形成导电通路;当导电炭黑母粒添加至40％时,玻...     

The effects of graphene on the properties of acrylic pressure-sensitive adhesive

Graphene was examined as a conductive filler to reduce the surface resistivity of an acrylic pressure-sensitive adhesive (PSA). The graphene effectively reduced the surface resistivity; however it also reduced the peel strength of the PSA. This peel strength reduction could be minimized when the graphene was not mixed homogeneously but embedded in the PSA as a separate layer. In addition, the surface resistivity was reduced much more effectively. Typically, the surface resistivity reduced to one-millionth, when 1 part of graphene was imbedded as a separate layer in 100 parts of PSA, compared to that of homogeneously dispersed composite.     

Exploring the Combined Effect of Electron Beam and Conductive Carbon Black on the Mechanical,Dynamic Mechanical,Thermal, and Electrical Properties of Ethylene Acrylic Elastomer

The electron beam-crosslinked and conductive carbon black-reinforced ethylene acrylic elastomer composites have been developed for various applications. The inter-connectivity of conductive carbon black agglomerates are clearly observed from the high-resolution transmission electron photo micrographs. The tensile strength of the composites has remarkably increased with increasing conductive carbon black loading up to 350 radiation dose. The dielectric permittivity (?′) and AC conductivity (σ_ac) increase with an increase in conductive carbon black loading. The electron magnetic shielding interference of the developed composites has been measured using X-band frequency range, and the electron magnetic shielding interference increases with an increase in conductive carbon black loading.     

低生热高导热轮胎橡胶复合材料的工程化研究

对低生热、高导热轮胎橡胶复合材料进行工程化研究。进行小型密炼机混炼试验,与开炼机混炼胶及企业提供的参比胶相比,材料性能达到了制备轮胎要求;采用低温一次法炼胶技术进行规模化生产,制备的碳纳米管/纳米氧化铝并用填充的导热胶在保证较低生热的情况下导热性能明显提高;将导热胶应用于工程机械子午线轮胎基部胶,轮胎的耐久性能优异。     

A review on the mechanical and electrical properties of graphite and modified graphite reinforced polymer composites

Carbon materials particularly in the form of sparkling diamonds have held mankind spellbound for centuries, and in its other forms, like coal and coke continue to serve mankind as a fuel material, like carbon black, carbon fibers, carbon nanofibers and carbon nanotubes meet requirements of reinforcing filler in several applications. All these various forms of carbon are possible because of the element's unique hybridization ability. Graphene (a single two-dimensional layer of carbon atoms bonded together in the hexagonal graphite lattice), the basic building block of graphite, is at the epicenter of present-day materials research because of its high values of Young's modulus, fracture strength, thermal conductivity, specific surface area and fascinating transport phenomena leading to its use in multifarious applications like energy storage materials, liquid crystal devices, mechanical resonators and polymer composites. In this review, we focus on graphite and describe its various modifications for use as modified fillers in polymer matrices for creating polymer-carbon nanocomposites.