共查询到19条相似文献,搜索用时 156 毫秒
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晏志科 《中国石油和化工标准与质量》1992,(9)
<正> 一、对国内外炭黑及橡胶填料标准情况的调查研究及对比分析(一)产品概况介绍炭黑包括橡胶用炭黑、乙炔炭黑、色素炭黑、白炭黑和硅铝炭黑等;橡胶填料包括陶土、碳酸钙、钙镁粉、滑石粉、石英粉及木质素等。炭黑及橡胶填料在国民经济中处于重要地位,其应用非常广泛,主要用于轮胎、橡胶制品、胶鞋、导电橡胶和塑料、油漆油墨以及电池工业等领域,有些还与人民生活息息相关。炭黑是国家控制的重要原材料,被化工部列为100种重要化工产品之列。1.橡胶用炭黑橡胶用炭黑是橡胶工业的重要原材料,是橡胶工业的重要填充补强剂,其用量约为 相似文献
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介绍了以煤及其延伸产品为原材料,通过机械粉碎、风选分级、表面处理、真空包装等流程生产改性煤系低密度填料的工业化方法,并简述了产品在塑料行业中的实际应用,简要展望了其在橡胶行业的应用前景。 相似文献
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朱永康编译 《中国轮胎资源综合利用》2011,(6):27-31
无定形白炭黑和炭黑在橡胶工业中用作补强填料的历史已长达数十年之久。它们在橡胶中的存在,对于获得耐用时间更长的产品、提高轮胎的强度与使用寿命是必不可少的。特别是白炭黑,降低了装配这些轮胎的车辆的温室气体排放量。 相似文献
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介绍硅烷偶联剂在橡胶工业中的应用研究进展,展望橡胶用硅烷偶联剂的发展趋势和应用前景。硅烷偶联剂的使用大大提高了橡胶制品的综合性能,促进了无机填料在橡胶工业中的应用。目前橡胶用硅烷偶联剂主要种类为含硫烃基类、乙烯基类、甲基丙烯酰氧烷基类、氨烃基类和环氧烃基类。随着新型轮胎和橡胶制品的快速发展,市场对橡胶用硅烷偶联剂的性能和使用技术也提出更高的要求,尤其是轮胎绿色化进程的加快,对硅烷偶联剂的需求快速增长,以NXT为代表的新型硅烷偶联剂是未来橡胶用硅烷偶联剂的发展方向之一。 相似文献
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以葡萄糖为碳源物质制备出碳包覆白炭黑填料,通过改变葡萄糖在碳包覆白炭黑填料中的占比,研究不同碳含量对碳包覆填料/橡胶纳米复合材料性能的影响。研究表明,碳包覆白炭黑填料在橡胶中的分散性能及其填充胶加工性能都大幅提升,以葡萄糖为碳源的碳包覆填料硫化胶的耐磨性能相比纯白炭黑硫化胶提升 30%时的碳包覆白炭黑填料填充胶的物理机械性能最为优异。本文通过对碳包覆填料/橡胶纳米复合材料的性能分析及填料自身的微观表征,对填料中碳源物质与白炭黑的作用机理及对橡胶性能的影响进行了总结探讨。 相似文献
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Filler surfaces in elastomers influence mobility of rubber matrix molecules. Mobility of rubber matrix molecules then determines
elastomer properties and behaviour of rubber products in applications. Effect of filler in elastomer–filler system is usually
characterized by different properties: Modulus seem to depend mainly on filler cluster size and filler network behaviour but
effect of mobility of rubber matrix molecules is also evident. Bound rubber characterize fraction of rubber immobilized on
filler particle surfaces, however, can be obtained only for uncured rubber–filler compounds. As it is shown in this paper,
the permeability coefficient of permanent gas in rubber–filler system could characterize mobility of rubber matrix molecules
around the filler particles and the activation energy of its permeation could characterize strength of physical bonds between
the rubber matrix molecules and surface of filler particles. 相似文献
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Brabender转矩流变仪在橡胶加工性能评价中的应用 总被引:1,自引:1,他引:1
以填充型粉末橡胶的加工性能评价为例,综述了Brabender转矩流变仪在橡胶的密炼机塑炼、混炼、焦烧模拟、挤出等加工性能表征中的应用。由于Brabender转矩流变仪提供了广泛的剪切速率范围和模块化的测试接头,为橡胶的密炼机加工、挤出加工等的模拟和表征提供了可能。研究结果表明,Brabender转矩流变仪的密炼头与工业密炼机具有良好的相关性,可用于表征胶料的密炼机加工特性。填充型粉末橡胶中含有大量已良好分散的填料,其密炼机混炼过程与传统千法混炼存在诸多不同,而复杂口型的挤出特性也有差别,这些特点在转矩流变仪上也表现得非常明显。 相似文献
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废橡胶是继白色污染之后又一大污染——黑色污染,是世界性的又一大难题,其中比重最大的就是废轮胎,世界各国尤其是发达国家纷纷致力于轮胎的回收利用研究.特别是其回收产品的再利用:一方面解决资源的短缺;另一方面获取较高的经济价值.经长期的探究,人们发现与翻新、制造胶粉和再生胶、作沥青填料、直接作为燃料焚烧等处理方法相比,热裂解... 相似文献
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M. F. Tse 《应用聚合物科学杂志》2006,100(6):4943-4956
Polymer/filler interactions have been found to affect the performance of tire tread, sidewall, innerliner, or carcass and other industrial rubber products that are all based on filled elastomers. Identification of types of various polymer/filler interactions and ranking of their impacts have been elusive. Isobutylene-based polymers have relatively saturated structures and contain very low concentrations of functional group. Examples are BIMS (a brominated isobutylene/p-methylstyrene copolymer) containing p-bromomethylstyrene and p-methylstyrene; bromobutyl rubber containing Br and olefin; chlorobutyl rubber containing Cl and olefin; and butyl rubber containing olefin. On the other hand, high diene rubbers, such as polybutadiene rubber, polyisoprene rubber, and styrene/butadiene rubber, have unsaturated backbones and high olefin contents. Hence, different types and extents of interaction with reinforcing fillers, such as carbon black (CB) or silica, are expected in these two classes of elastomer. This work employs bound rubber (solvent extraction), viscoelasticity, stress–strain measurements, and solid state NMR to identify, differentiate, and scale polymer/filler interactions in unvulcanized BIMS/CB, BIMS/silica, SBR/CB, and SBR/silica composites, where SBR denotes a styrene/butadiene rubber. Four different types of CB and one type of silica have been studied. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 4943–4956, 2006 相似文献
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Filled rubbers have a long history in rubber technology. Filler morphology in the rubber matrix significantly influences the performance of filled rubber products. Therefore, we have to achieve a certain morphology of filler in the rubbery matrix in order to enjoy good reinforcement. However, it has not been sufficiently known what kind of morphology is necessary for the reinforcement, because preparations of adequate models for the characterization of filler morphology have been difficult. The in situ silica filling of the rubber matrix can be modeled for the preparations. In this paper, the characteristic features of in situ silica generated in diene rubbers are reviewed, citing recent reports. Two important models are presented. One is a homogeneous silica filling in situ, producing soft rubber nanocomposites. The other is the formation of an in situ silica filler network, creating stiff rubber nanocomposites. The controlled in situ silica filling is useful to evaluate the reinforcement effect of filler in a rubber matrix. © 2016 Society of Chemical Industry 相似文献
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硫化是决定橡胶是否能够作为材料使用最为重要的步骤。橡胶硫磺硫化体系中,氧化锌的使用不仅可以改善橡胶的硫化性能,并且能够大幅度提高橡胶制品的物理机械性能。但是,由于游离的锌离子易迁移至环境,会对水生生物等产生危害,所以欧盟和美国加州相继颁布法案限制氧化锌的使用。另外,锌矿产资源也日渐枯竭。因此,减少锌元素在橡胶配方中的应用,是保护环境并保证橡胶硫化反应正常进行的热点研究课题。该综述介绍了目前橡胶硫磺硫化体系配方中减少硫化活化剂氧化锌的用量和用非含锌化合物替代氧化锌的研究进展,包括纳米氧化锌、有机锌复合物、无机填料载锌技术、其他金属氧化物和稀土型多功能橡胶硫化剂等新型硫化活化剂的研究现状,并对未来发展方向进行展望。 相似文献