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橡胶生产中的主要边角料是未经硫化的但由胶料组分处理过的帘线、帘布和织物材料。近年来,人们非常注意用各种短纤维来增强橡胶,以赋予橡胶宝贵的各向异性。以往的研究工作表明,生产三角皮带时涂过胶的织物边角料,经磨碎后可用作橡胶的纤维填充剂。在运输带胶管轮胎以及其它制品的生产过程中,也都会产生这类边角料。研究使用各种类型的未硫化的粉碎边角料作为橡胶填充剂,以扩大纤维填充剂原料来源 相似文献
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用炭黑作为补强材料已经随着橡胶工业,特别是轮胎工业发展了一个多世纪。由于聚合物复合材料的蓬勃发展和橡胶原材料市场的剧烈竞争及人们对轮胎性能要求的不断提高,促进了填充剂的使用日益扩大,发展迅速。因此增加填充剂的品种和来源,控制填充剂的质量和提高填充剂的性能,具有非常重要的意义。 相似文献
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炭黑和白炭黑在橡胶工业中用作补强填充剂已数十年,本文叙述了其在填充剂补强时的粒子状态,多以聚集体和附聚体的状态存在,应归属为"纳米结构材料"。 相似文献
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正由韩国轮胎株式会社申请的专利(公开号CN 105017571A,公开日期2015-11-04)"安全轮胎用侧壁插入橡胶组合物及利用其制造的轮胎",涉及的安全轮胎用侧壁插入橡胶组合物采用了具有低玻璃化转变温度且官能化的溶聚丁二烯橡胶以增强其与填充剂的相互作用,从而实现优异的低油耗性能。同时,增大了填充剂用量,由此 相似文献
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碳纳米管/天然橡胶复合材料的结构与性能 总被引:7,自引:0,他引:7
通过机械混炼法制备了碳纳米管(CNT)/天然橡胶(NR)复合材料,研究了CNT的预处理方式对复合材料结构与性能的影响。结果表明,与NR相比,CNT/NR复合材料的硫化返原现象减轻,硫化后凝胶质量分数降低,硫化剂用量应适当增加,由混酸氧化处理的CNT填充橡胶复合材料的硫化迟滞效应明显;复合材料内部存在CNT的富集区域和CNT含量很少的橡胶区域,CNT与NR之间的界面结合作用不好;由HF处理的CNT填充橡胶复合材料的整体性能最好,但受CNT在橡胶基体中的不良分散状态及界面性质的影响,其力学性能不高。 相似文献
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利用鞘氨醇单胞菌对丁苯橡胶(SBR)胶粉进行脱硫,对比研究SBR胶粉和脱硫SBR胶粉填充SBR胶料的性能。结果表明:鞘氨醇单胞菌不仅可使硫交联键断裂,也可使橡胶主链上的部分碳-碳双键断裂。与SBR胶粉填充的SBR胶料相比,脱硫SBR胶粉填充SBR胶料的转矩和表观交联密度减小,拉伸强度和拉断伸长率增大,邵尔A型硬度和撕裂强度保持不变,阿克隆磨耗量减小,脱硫SBR胶粉与SBR基体结合较紧密,动态滞后损失较小。 相似文献
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木质素-硅藻土复合物在三角带底胶中的应用研究 总被引:2,自引:2,他引:0
通过共沉淀-脱水法制备了木质素-硅藻土复合物填料,并湿法混炼制备了木质素-硅藻土复合物填充三角带底胶实验胶。通过无转子硫化仪、电子万能试验机、邵氏硬度计研究了硫磺和促进剂的量、天然橡胶和顺丁橡胶的量对三角带底胶实验胶的硫化特性和力学性能的影响,并将木质素-硅藻土复合物填充三角带底胶与炭黑填充的三角带底胶实验胶进行了比较。结果表明:增加硫磺和促进剂的量,提高了三角带底胶实验胶的硬度和300%定伸应力;将顺丁橡胶替换成天然橡胶则提高了三角带底胶实验胶的拉伸强度。配方调整后三角带底胶实验胶的综合性能已与N330填充胶料相当。 相似文献
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Recycling discarded rubber is important for both environmental and economic reasons. One of the most attractive methods of recycling rubber waste is to use ground rubber (GR) as a compounding ingredient or as a replacement for raw polymers. In this study, ground natural rubber was prepared with different curing systems and compounded into the parent compounds. The cure behaviors and physical properties of the GR‐filled vulcanizates were investigated, and they were largely affected by the curing systems of the rubber matrix and GR. GR‐filled vulcanizates with GR and the rubber matrix, having a conventional curing system, showed the largest changes in the cure characteristics. The greatest decrease in the physical properties was observed for peroxide‐cured‐GR‐filled vulcanizates. The addition of GR decreased the crosslink density of the GR‐filled vulcanizates. This was thought to be the main reason for the reduction of the mechanical properties of the GR‐filled vulcanizates. However, the adhesion between the GR and rubber matrix may also have caused the differences in the physical properties of the GR‐filled vulcanizates with respect to the curing systems of the rubber matrix and GR. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007 相似文献
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Reinforcing mechanisms of carbon nanotubes and high structure carbon black in natural rubber/styrene‐butadiene rubber blend prepared by mechanical mixing − effect of bound rubber
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The reinforcing effect of high structure carbon black (HSCB) and multi‐walled carbon nanotubes (MWCNTs) on natural rubber/styrene‐butadiene rubber blend processed using mechanical mixing was comparatively investigated. In‐depth analysis by dynamic mechanical analysis, the Eggers ? Schummer model and Medalia's relationship showed that HSCB aggregates provided large internal pores leading to significant immobilized macromolecules in filled rubber. Additionally, a tubular immobilized rubber layer with a thickness of 8 nm was estimated for the rubber/MWCNT system based on dynamic mechanical analysis data. The mechanical performance of the HSCB filled blend was higher than that of the MWCNT filled blend at the same loading which was correlated to its higher bound rubber content. Both bound rubber content and filler anisotropy were found to govern the overall mechanical properties of rubber/MWCNT composites. Stress softening was correlated with rupture energy suggesting hysteretic failure mechanisms in both MWCNT and HSCB filled rubbers. © 2015 Society of Chemical Industry 相似文献
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