摘要
采用机械共混法,探讨了紫炭黑(PCB)用量以及紫炭黑经偶联剂Si69改性后对紫炭黑/天然橡胶共混胶力学性能和热稳定性的影响,通过扫描电子显微镜(SEM)观察紫炭黑/天然橡胶共混胶的分散情况和断面形貌。结果表明,紫炭黑能提高橡胶的力学性能和热稳定性,经硅烷偶联剂Si69改性处理的紫炭黑可提高共混胶的力学性能,当Si69的用量为紫炭黑质量的8%时,胶料的力学性能最佳,其拉伸强度达到29.48MPa。
The effects of the amount of PCB （Purple Carbon Black） and coupling agent Si69 modi- fied PCB on PCB/NR （Nature Rubber） blended rubber＇s mechanical property and thermal stability were discussed with mechanical blending method. Dispersion and surface topography of the blended rubber were observed by SEM （Scanning Electron Microscope）. The results showed that PCB could improve rubber＇s mechanical property and thermal stability; PCB modified with Si69 could improve blended rubber＇s mechanical property,which could reach the best tensile strength 29.48 MPa when the mount of Si69 was 8% of PCB.
出处
《弹性体》
CAS
2013年第1期65-69,共5页
China Elastomerics
基金
973计划前期研究专项(2010CB635109)
海南大学博士启动基金项目(Kyqd1030)
海南省自然科学基金项目(509007)
关键词
紫炭黑
天然橡胶
改性
力学性能
热稳定性
purple carbon black natural rubber modificatiom mechanical property thermal stability
