纳米微珠二氧化硅用量对空气弹簧用天然橡胶胶料性能的影响  

Effect of Nanobead Silica Amount on Properties of NR Compoundfor Air Spring

作　　者：高新文 裴世鹏 郑立霞 GAO Xinwen;PEI Shipeng;ZHENG Lixia(Zhiheng Vibration Damping Technology Co.,Ltd,Qingdao 266114,China)

机构地区：[1]山东智衡减振科技股份有限公司,山东青岛266114

出　　处：《橡胶工业》2023年第2期130-135,共6页China Rubber Industry

摘　　要：将纳米微珠二氧化硅添加至空气弹簧用天然橡胶(NR)胶料中,研究纳米二氧化硅用量对NR胶料的加工性能和物理性能以及空气弹簧耐疲劳性能的影响。结果表明:随着纳米微珠二氧化硅用量的增大,NR胶料的硫化特性和门尼粘度未发生明显变化,NR硫化胶的邵尔A型硬度先减小后增大,300%定伸应力无明显变化,拉伸强度和拉断伸长率呈减小趋势;当纳米微珠二氧化硅用量为10~15份时,NR硫化胶的耐屈挠性能较佳;在空气弹簧用NR胶料中加入10份纳米微珠二氧化硅能够有效地提高空气弹簧的耐常温疲劳性能和耐高温疲劳性能。The nanobead silica was added to the natural rubber(NR)compound for the air spring,and the processing properties and physical properties of the NR compound and the fatigue resistance of the air spring were studied.The results showed that,with the increase of nanobead silica amount,the vulcanization characteristics and Mooney viscosity of the NR compound did not change significantly,the Shore A hardness of the NR vulcanizate decreased first and then increased,the tensile stress at 300%elongation did not change significantly,and the tensile strength and elongation at break both showed a decreasing trend.It was found that when the nanobead silica amount was 10~15 phr,the flexure resistance of the NR vulcanizate was better.With the addition of 10 phr nanobead silica in the NR compound for the air spring,the fatigue resistances of the air spring at room temperature and at high temperature were effectively improved.

关 键 词：纳米微珠二氧化硅 空气弹簧 天然橡胶 硫化特性 耐屈挠性能 耐疲劳性能 

分 类 号：TQ330.383[化学工程—橡胶工业] TQ336.42TQ332.6