Enhancing the protective performance of anti-impact, corrosion resistant and flame retardant polyurea coatings using bio-based supramolecular decorated montmorillonite

doi:10.1016/j.conbuildmat.2024.136721

IMR OpenIR

	Enhancing the protective performance of anti-impact, corrosion resistant and flame retardant polyurea coatings using bio-based supramolecular decorated montmorillonite
	Han, Sensen 1,3; Li, Shuangshan 1; Zhang, Xiurui 1; Liu, Dongyan 2; Guo, Shuang 5; Wang, Baozhu 4; Meng, Qingshi 1,3
通讯作者	Guo, Shuang(guoshuang99@sina.cn) ; Meng, Qingshi(mengqingshi@hotmail.com)
	2024-07-12
发表期刊	CONSTRUCTION AND BUILDING MATERIALS
ISSN	0950-0618
卷号	435 页码:13
摘要	Developing bio-based nano-additives for enhancing mechanical strength, corrosion resistance, and flame retardancy in polyurea (PUA) coatings at low loading levels is crucial for human well-being and environmental preservation. In this study, montmorillonite (MMT) was first exfoliated by ball milling with the aid of chitosan, and then further co-assembled with phytic acid and urea to form a nanohybrid (CPN@MMT). The resulting CPN@MMT nanohybrid exhibited good compatibility and dispersibility within matrix and endowed PUA composites with improved anti-impact, corrosion resistant and flame retardant properties. Remarkably, the addition of CPN@MMT improved the mechanical and impact protection properties of PUA coatings. Electrochemical and salt spray tests confirmed that the excellent anti-corrosion performance of PUA composite coating stemmed from the dispersed nano-sheets forming a protective nano-barrier. CPN@MMT in the PUA matrix formed a compact char layer, reducing heat release and smoke by inhibiting heat diffusion and volatile gas evaporation, as evidenced by cone calorimeter and TG-FTIR tests. The enhanced fire safety was primarily attributed to the physical barrier, catalytic charring and dilution effect of CPN@MMT. Hence, a green and feasible method was developed to create bio-based nano-additive in PUA coatings with anti-impact, corrosion resistant and flame retardant performance.
关键词	Polyurea Corrosion resistance Impact protective Flame retardant
资助者	National Natural Science Foundation of China ; Liaoning Pro- vincial Department of Education Series Project ; Natural Science Foundation of Liaoning Province ; Liaoning BaiQianWan Talents Program
DOI	10.1016/j.conbuildmat.2024.136721
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52173077] ; Liaoning Pro- vincial Department of Education Series Project[LJKZ0187] ; Natural Science Foundation of Liaoning Province[2023 -MS -239] ; Liaoning BaiQianWan Talents Program[2021921081]
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS记录号	WOS:001247387600001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/187104
专题	中国科学院金属研究所
通讯作者	Guo, Shuang; Meng, Qingshi
作者单位	1.Shenyang Aerosp Univ, Coll Aerosp Engn, Shenyang 110136, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shenyang Jusheng New Mat Technol Co Ltd, Shenyang 110136, Peoples R China 4.Qingdao Airjj New Mat Co Ltd, Qingdao Key Lab Polyurea Elastomer, Qingdao 266100, Peoples R China 5.Gen Hosp Northern Theatre Command, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Han, Sensen,Li, Shuangshan,Zhang, Xiurui,et al. Enhancing the protective performance of anti-impact, corrosion resistant and flame retardant polyurea coatings using bio-based supramolecular decorated montmorillonite[J]. CONSTRUCTION AND BUILDING MATERIALS,2024,435:13.
APA	Han, Sensen.,Li, Shuangshan.,Zhang, Xiurui.,Liu, Dongyan.,Guo, Shuang.,...&Meng, Qingshi.(2024).Enhancing the protective performance of anti-impact, corrosion resistant and flame retardant polyurea coatings using bio-based supramolecular decorated montmorillonite.CONSTRUCTION AND BUILDING MATERIALS,435,13.
MLA	Han, Sensen,et al."Enhancing the protective performance of anti-impact, corrosion resistant and flame retardant polyurea coatings using bio-based supramolecular decorated montmorillonite".CONSTRUCTION AND BUILDING MATERIALS 435(2024):13.