新型纳米碳材G66在丁腈橡胶油封中的应用研究  

Study on Application of New Nano-carbon Material G66 in NBR Oil Seal

作　　者：公维颖 谢家振 邓涛[1] GONG Wei-ying;XIE Jia-zhen;DENG Tao(Qingdao University of Science&Technology,Qingdao 266042,China;Southern Graphite Research Institute(Hunan)Co.,Ltd.,Hunan 410000,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,青岛266042 [2]南方石墨研究院(湖南)有限公司,长沙410000

出　　处：《特种橡胶制品》2023年第3期10-13,共4页Special Purpose Rubber Products

摘　　要：通过逐量替代炭黑N550,研究了新型纳米碳材G66对NBR胶料硫化特性、力学性能、耐磨性能、动态力学性能、导热性能和导电性能的影响。结果表明,G66从0份逐渐增加到60份,NBR混炼胶扭矩差降低,t10保持不变,t90减小,门尼粘度略有下降;其硫化胶硬度及定伸应力均降低,拉断伸长率增大,拉伸强度基本保持不变;NBR油封制品动态生热有所降低,导热系数增大,表面电阻明显降低。The effects of a new type of nano carbon material G66 on the vulcanization characteristics,mechanical properties,wear resistance,dynamic mechanical properties,thermal conductivity and electrical conductivity of NBR compounds were studied by replacing carbon black N55o.The results showed that when G66 gradually increased from O to 60 phr,the torque difference of NBR compound decreased,tio remained unchanged,too decreased,and Mooney viscosity decreased slightly;The hardness and modulus of the vulcanizate decreased,and the elongation at break increased,tensile strength was basically unchanged.The dynamic heat build-up of NBR oil seal products was decreased,the thermal conductivity was increased,and the surface resistance value was significantly reduced.

关 键 词：新型纳米碳材 橡胶油封 硫化特性 力学性能 导热性能 导电性能 

分 类 号：TQ333.7[化学工程—橡胶工业]