预分散多壁碳纳米管/三元乙丙橡胶复合材料的性能研究
Study on Properties of Pre-dispersed MWCNTs/EPDM Composites
许仕强 1李健 2谭博文 1吴明生1
作者信息
- 1. 青岛科技大学 高分子科学与工程学院,山东 青岛 266042
- 2. 江西黑猫炭黑股份有限公司,江西 景德镇 333000
- 折叠
摘要
以预分散多壁碳纳米管(MWCNTs)为导电填料,研究预分散MWCNTs/三元乙丙橡胶(EPDM)复合材料的硫化特性、物理性能和导电性能.结果表明:与MWCNTs/EPDM复合材料相比,预分散MWCNTs/EPDM复合材料的t90大幅缩短,门尼粘度减小,硫化效率和加工性能提高;预分散MWCNTs/EPDM复合材料的拉伸强度、拉断伸长率、撕裂强度和压缩永久变形增大,100%定伸应力和回弹值减小,预分散MWCNTs/EPDM复合材料有更明显的导电逾渗现象,导电性能提高.
Abstract
The vulcanization characteristics,physical properties and conductivity performance of the pre-dispersed multi-walled carbon nanotubes(MWCNTs)/ethylene-propylene-diene rubber(EPDM)composites were studied by using the pre-dispersed MWCNTs as conductive fillers.The results showed that compared with the MWCNTs/EPDM composite,the t90 of the pre-dispersed MWCNTs/EPDM composite was significantly shorted,the Mooney viscosity decreased,and the vulcanization efficiency and processing properties were improved.The tensile strength,elongation at break,tear strength and compression set of the pre-dispersed MWCNTs/EPDM composite increased,while the tensile stress at 100%elongation and rebound value decreased.The pre-dispersed MWCNTs/EPDM composite had a more obvious conductive percolation phenomenon and improved conductivity performance.
关键词
多壁碳纳米管/预分散/三乙丙橡胶/硫化特性/物理性能/导电性能Key words
MWCNTs/pre-dispersion/EPDM/vulcanization characteristic/physical property/conductivity performance引用本文复制引用
出版年
2025
NETL
NSTL
万方数据