复合材料科学与工程Issue(12)：11-19,9.DOI:10.19936/j.cnki.2096-8000.20251228.002
改性黑磷增强聚脲涂层的制备与性能研究
Preparation and properties of modified black phosphorus-reinforced polyurea coatings
摘要
Abstract
To improve the flame retardancy of polyurea(PUA)-based composite materials,this study selected modified black phosphorus nanosheets and incorporated them into the PUA system to prepare modified black phos-phorus reinforced PUA composites.Four different PUA specimens were prepared:pure PUA,BP/PUA with 1wt％black phosphorus(BP)nanosheets,CS-BP/PUA with 1wt％chitosan-modified black phosphorus(CS-BP)nanosheets,and MB-CS@BP/PUA with 1wt％chitosan and melamine borate(MB)modified black phosphorus(MB-CS@BP)nanosheets.The flame retardancy,combustion behavior,and mechanical properties of these four PUA specimens were compared using vertical combustion tests,cone calorimetry,tensile tests,and Charpy impact tests.The experimental results demonstrate that the addition of MB-CS@BP nanosheets significantly improves the flame retardancy of PUA.Compared to the BP and CS-BP nanosheets,the MB-CS@BP/PUA composite exhibits better combustion behavior and the best flame retardant performance.The incorporation of modified black phosphorus nanosheets MB-CS@BP also effectively enhances the tensile strength of PUA,with an increase of 36.7％compared to pure PUA.Under low-speed impact conditions,the MB-CS@BP/PUA composite shows a 41.40％improvement in impact strength when used as a protective coating on aluminum alloy compared to uncoated aluminum alloy.关键词
黑磷/聚脲/阻燃性能/力学性能/复合材料Key words
black phosphorus/polyurea/flame retardancy/mechanical property/composites分类
通用工业技术引用本文复制引用
孟庆实,董奕彤,王朔,韩森森..改性黑磷增强聚脲涂层的制备与性能研究[J].复合材料科学与工程,2025,(12):11-19,9.基金项目
国家自然科学基金(52173077) （52173077）
