| 环境温度和碳纳米管拔出速度对天然橡胶基体温度的影响 |
| Effects of Ambient Temperature and Carbon Nanotubes Pull-out Speed on NR Matrix Temperature |
| 投稿时间：2019-08-06 修订日期：2019-08-06 |
| DOI：10.12136/j.issn.1000-890X.2020.07.0489 |
| 中文关键词: 天然橡胶 碳纳米管 分子动力学 受力分析 拔出速度 环境温度 橡胶基体温度 |
| 英文关键词: NR carbon nanotubes molecular dynamics force analysis pull-out speed ambient temperature rubber matrix temperature |
| 基金项目:国家自然科学基金资助项目（51576102） |
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| 中文摘要: |
| 采用分子动力学模拟碳纳米管从天然橡胶基体中的拔出过程，研究环境温度和碳纳米管拔出速度对橡胶基体温度和碳纳米管受力的影响。结果表明：碳纳米管拔出速度越大，橡胶基体温度升高越明显，且环境温度越高，拔出速度对橡胶基体温度的影响越显著；碳纳米管拔出时，橡胶基体存在明显的粘附层和滑移层，滑移层温度不均匀升高且滑移层随着环境温度升高而外移；碳纳米管受力分析进一步说明橡胶基体温度随着碳纳米管拔出速度增大和环境温度升高而升高。 |
| 英文摘要: |
| The pull-out process of carbon nanotubes from natural rubber（NR） matrix was simulated using molecular dynamics，and the effects of ambient temperature and pull-out speed on the rubber matrix temperature and carbon nanotube stress were studied. The results showed that the higher the pull-out speed was，the more obvious the rubber matrix temperature rise was，and the higher the ambient temperature was，the more significant the rubber matrix temperature rise was. During the pull-out，there were an adhesion layer and a slip layer in the rubber matrix，the temperature of the slip layer increased unevenly and the slip layer moved outward as the ambient temperature increased. The force analysis of carbon nanotubes further illustrated the rubber matrix temperature increased as the carbon nanotubes pull-out speed and the ambient temperature increased. |
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