中国塑料2025，Vol.39Issue(9)：63-67,5.DOI:10.19491/j.issn.1001-9278.2025.09.010
超支化聚酯改性碳纳米管/水性不饱和聚酯复合材料的结构与性能研究
Structure and properties of hyperbranched-polyester-modified carbon nanotubes/waterborne unsaturated polyester composites
郑世伦 1周启伟 2刘斌 1梁旭之 1袁明园2
作者信息
- 1. 贵州省遵义公路管理局,贵州 遵义 563000
- 2. 招商局重庆交通科研设计院有限公司,重庆 400000
- 折叠
摘要
Abstract
This study investigated the effects of hyperbranched polyester(HBP H202 and H204)surface modification on carbon nanotubes(CNTs)and their subsequent impact on waterborne unsaturated polyester(WUPR)composites.Suc-cessful grafting was confirmed through FTIR,XRD,and XPS characterization.Comparative analysis indicated that while unmodified CNTs slightly enhanced WUPR's mechanical properties,HBP-modified CNTs(CNTs H202 and CNTs H204)demonstrated superior performance.Notably,CNTs H204 showed the most significant mechanical im-provement.SEM analysis confirmed better CNT dispersion in WUPR after HBP modification.Friction tests indicated that modified CNTs substantially reduced mass wear compared to both pure WUPR and unmodified CNT composites.DMA test results showed enhanced storage modulus and glass transition temperature,with CNTs H202 exhibiting partic-ularly strong interfacial interactions due to its smaller molecular size and higher grafting density.These findings demon-strated that HBP surface modification effectively improved CNT dispersion and interfacial bonding in WUPR,leading to superior composite performance.This work provides valuable insights for developing high-performance WUPR compos-ites and broadening their industrial applications.关键词
超支化聚酯/碳纳米管/水性不饱和聚酯/力学性能/复合材料Key words
hyperbranched polyester/carbon nanotubes/waterborne unsaturated polyester/mechanical property/composite分类
化学化工引用本文复制引用
郑世伦,周启伟,刘斌,梁旭之,袁明园..超支化聚酯改性碳纳米管/水性不饱和聚酯复合材料的结构与性能研究[J].中国塑料,2025,39(9):63-67,5.
