碳纳米管补强丁腈橡胶的性能研究
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摘要
研究碳纳米管用量对丁腈橡胶(NBR)性能的影响。结果表明:随着碳纳米管用量的增大,胶料的最小和最大转矩增大,焦烧时间和正硫化时间缩短;硫化胶的100%和300%定伸应力增大,拉伸强度和撕裂强度先增大后减小,高温拉伸性能保持率总体增大,耐热和耐磨性能提高;加入6份碳纳米管,硫化胶的储能模量在温度较低时减小,损耗因子峰值减小。扫描电镜分析显示,碳纳米管在NBR中整体分散均匀,局部存在团聚现象。
The effect of carbon nanotubes content on the properties of NBR was investigated. The results showed that,as the addition level of carbon nanotubes increased,the minimum torque and maximum torque of the compound increased,scorch time and optimum cure time were shortened,the modulus at 100% and 300% elongation of the vulcanizate increased,tensile strength and tear strength first increased and then decreased,retention rate of tensile properties at high temperature increased,and heat resistance and wear resistance were improved. The storage modulus of the vulcanizate with 6 phr of carbon nanotubes decreased at low temperature,and the peak value of loss factor decreased. SEM analysis showed that carbon nanotubes in NBR were uniformly dispersed but with some agglomeration.
The effect of carbon nanotubes content on the properties of NBR was investigated. The results showed that,as the addition level of carbon nanotubes increased,the minimum torque and maximum torque of the compound increased,scorch time and optimum cure time were shortened,the modulus at 100% and 300% elongation of the vulcanizate increased,tensile strength and tear strength first increased and then decreased,retention rate of tensile properties at high temperature increased,and heat resistance and wear resistance were improved. The storage modulus of the vulcanizate with 6 phr of carbon nanotubes decreased at low temperature,and the peak value of loss factor decreased. SEM analysis showed that carbon nanotubes in NBR were uniformly dispersed but with some agglomeration.
引文
[1]Iijima S.Helical Microtubules of Graphitic Carbon[J].Nature,1991,354(7):56-58.
[2]张振华,彭景翠,陈小华,等.手性环状碳纳米管的电子结构及磁化特性[J].物理学报,2001,50(6):1150-1156.
[3]孙劲鹏,王太宏.一种基于碳纳米管的随机存储器[J].物理学报,2002,51(9):2096-2100.
[4]杨清芝.实用橡胶工艺学[M].北京:化学工业出版社,2005.
[5]马琳,马连湘,何燕.改性碳纳米管对三元乙丙橡胶导热性能和物理性能的影响[J].橡胶工业,2014,61(10):600-604.
[6]禹权,叶素娟,刘磊.齐聚酯12-Ⅱ补强丁腈橡胶的研究[J].弹性体,2006,16(6):30-32.
[7]黄舟,于晓波,谢鹏,等.碳纳米管对炭黑/丁苯橡胶复合材料耐疲劳性能的影响[J].橡胶工业,2014,61(11):650-655.
[8]薛广智,谢其昌.橡胶磨耗的机理[J].合成橡胶工业,1984,5(2):21-30.
[9]杨坤民,陈福林,岑兰.导热橡胶的研究进展[J].橡胶工业,2005,52(2):118-123.
[10]隋刚,王小平,梁吉.机械混炼制备碳纳米管/天然橡胶复合材料特性分析[J].弹性体,2005,15(2):5-9.
[2]张振华,彭景翠,陈小华,等.手性环状碳纳米管的电子结构及磁化特性[J].物理学报,2001,50(6):1150-1156.
[3]孙劲鹏,王太宏.一种基于碳纳米管的随机存储器[J].物理学报,2002,51(9):2096-2100.
[4]杨清芝.实用橡胶工艺学[M].北京:化学工业出版社,2005.
[5]马琳,马连湘,何燕.改性碳纳米管对三元乙丙橡胶导热性能和物理性能的影响[J].橡胶工业,2014,61(10):600-604.
[6]禹权,叶素娟,刘磊.齐聚酯12-Ⅱ补强丁腈橡胶的研究[J].弹性体,2006,16(6):30-32.
[7]黄舟,于晓波,谢鹏,等.碳纳米管对炭黑/丁苯橡胶复合材料耐疲劳性能的影响[J].橡胶工业,2014,61(11):650-655.
[8]薛广智,谢其昌.橡胶磨耗的机理[J].合成橡胶工业,1984,5(2):21-30.
[9]杨坤民,陈福林,岑兰.导热橡胶的研究进展[J].橡胶工业,2005,52(2):118-123.
[10]隋刚,王小平,梁吉.机械混炼制备碳纳米管/天然橡胶复合材料特性分析[J].弹性体,2005,15(2):5-9.