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

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。;The extraction process of carbon nanotubes from natural rubber（NR） matrix was simulated using molecular dynamics，so as to reveal how the ambient temperature and extraction speed affect the rubber matrix temperature and carbon nanotube stress.The results showed that the higher the extraction 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.During the extraction，there was an adhesion layer and slip layer in the rubber matrix，the slip layer temperature rised 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 nanotube extraction speed and the ambient temperature increased