单甲基丙烯酸锌改性氢化丁腈橡胶老化过程的力学性能演变及其老化动力学
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摘要
以单甲基丙烯酸锌(HZMMA)为反应型增强剂,制备了HZMMA改性的氢化丁腈橡胶(HNBR)复合材料,研究了无氧、高温条件下HNBR复合材料老化过程的力学性能演变、老化行为及其老化动力学。结果表明,在180℃和200℃的老化温度下,老化前期HNBR/N 990/HZMMA、HNBR/HZMMA复合材料的拉伸强度有所增加,出现极值现象;随着老化时间的延长,材料的拉伸强度呈现逐渐下降的趋势,HNBR/HZMMA复合材料的拉伸强度下降较为缓慢。建立了HNBR/HZMMA复合材料的老化动力学模型,依此模型预测该材料在150℃下的使用寿命超过3年,HNBR/HZMMA复合材料具有优异的耐热老化性能。
The hydrogenated butadiene-acrylonitrile rubber(HNBR) composites were prepared with hydroxyl zinc monomethyl acrylate(HZMMA) as reaction reinforcing agent. The evolution of mechanical properties, the aging behavior and kinetics of HNBR composites at anaerobic high temperature environment were studied. The results showed that the tensile strength of HNBR/carbon black N 990/HZMMA, HNBR/HZMMA composites increased and appeared the extreme value in the early aging at 180 ℃ and 200 ℃. With the aging time prolonged, the tensile strength of composites decreased gradually, while the tensile strength of HNBR/HZMMA composites decreased slowly. The aging kinetics model of HNBR/HZMMA composites was established. It was predicted that the service life of HNBR/HZMMA composites at 150 ℃ was more than three years, and the HNBR/HZMMA compo-sites had excellent thermal aging properties.
The hydrogenated butadiene-acrylonitrile rubber(HNBR) composites were prepared with hydroxyl zinc monomethyl acrylate(HZMMA) as reaction reinforcing agent. The evolution of mechanical properties, the aging behavior and kinetics of HNBR composites at anaerobic high temperature environment were studied. The results showed that the tensile strength of HNBR/carbon black N 990/HZMMA, HNBR/HZMMA composites increased and appeared the extreme value in the early aging at 180 ℃ and 200 ℃. With the aging time prolonged, the tensile strength of composites decreased gradually, while the tensile strength of HNBR/HZMMA composites decreased slowly. The aging kinetics model of HNBR/HZMMA composites was established. It was predicted that the service life of HNBR/HZMMA composites at 150 ℃ was more than three years, and the HNBR/HZMMA compo-sites had excellent thermal aging properties.
引文
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[2] Li Qi,Zhao Suhe,Pan Yan.Structure,morphology,and properties of HNBR filled with N 550,SiO2,ZDMA,and two of three kinds of fillers[J].Journal of Applied Polymer Science,2010,117(1):421-427.
[3] Gu Zheng,Song Guojun,Liu Wusheng,et al.Structure and properties of hydrogenated nitrile rubber/organo-montmorillonite nano-composites[J].Clays & Clay Minerals,2010,58(1):72-78.
[4] 蔡维婷,苏丽丽,殷石,等.纳米硅酸盐与芳纶微米短纤维共补强HNBR复合材料的结构与性能[J].橡胶工业,2010,57(3):133-138.
[5] Hee Dong Chae,Utpal Basuli,Ji Hong Lee,et al.Mechanical and thermal properties of rubber composites reinforced by zinc methacrylate and carbon black[J].Polym Compos ,2012,33(7):1141-1153.
[6] Zhao Xingbo,Zhang Qiuyu,Gu Junwei,et al.Effects of carbon black on the properties of HNBR reinforced by in-situ prepared ZDMA[J].Polymer-Plastics Technology and Engineering,2011,50(15):1507-1510.
[7] Wang Yiqing ,Wang Ya ,Zhang Huifeng,et al.A novel approach to prepare a gradient polymer with a wide damping temperature range by in-situ chemical modification of rubber during vulcanization[J].Macromolecular Rapid Communications,2006,27(14):1162-1167.
[8] Lu Yonglai,Liu Li,Yang Cheng,et al.The morphology of zinc dimethacrylate reinforced elastomers investigated by SEM and TEM[J].European Polymer Journal,2005,41(3):577-588.
[9] Wei Zheng,Lu Yonglai,Zhang Liqun,et al.Study on wear,cutting and chipping behaviors of hydrogenated nitrile butadiene rubber reinforced by carbon black and in-situ prepared zinc dimethacrylate[J].Journal of Applied Polymer Science,2012,124(6):4564-4571.
[10] Chen Yukun,Xu Chuanhui.Crosslink network evolution of nature rubber/zinc dimethacrylate composite during peroxide vulcanization[J].Polym Compos ,2011,32(10):1505-1514.
[11] Xu Chuanhui,Chen Yukun,Wang Yanpeng,et al.A study on the crosslink network evolution of nitrile budadiene rubber reinforced by in situ zinc dimethacrylate [J].Polym Compos,2011,32(12):2084-2092.
[12] Xu Chuanhui,Chen Yukun,Wang Yanpeng,et al.Temperature dependence of the mechanical properties and the inner structures of natural rubber reinforced by in situ polymerization of zinc dimethacrylate[J].J Appl Polym Sci,2013,128(4):2350-2357.
[13] 武守鹏,纪彦玲,徐文龙,等.硫化时间对HNBR/ZMMA复合材料形态结构及性能的影响[J].特种橡胶制品,2013,34(3):1-4.
[14] 王婷,王增林,王曼霞,等.HZMMA对离子聚合物/聚氨酯(脲)弹性体合金增强机制的研究[J].弹性体,2014,24(4):13-18.
[15] Winoj Balasooriya,Bernd Schrittesser,Santhosh Karunakaran,et al.Influence of thermo-oxidative ageing of HNBR in oil field applications[J].Macromol Symp,2017,7(373):1600093.