Effect of Temperature on Macro- and Micro-Bonding Characteristics Between Waterborne Polyurethane and Concrete
TANG Jianhui1, BAI Yin1, CHEN Xudong2,*, ZHANG Wei3
1 Materials & Structural Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210029, China 2 College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China 3 Dongjiang Water Source Project Management Division of Shenzhen, Shenzhen 518036, Guangdong, China
Abstract: In order to understand the influence of ambient temperature on the macro- and micro-bonding characteristics of the interfacial between waterborne polyurethane (WPU) and concrete, the change of the mass loss, tensile strength and elongation at break of WPU at 20 ℃, 35 ℃ and 50 ℃ with age were tested. The influence of temperature on the bonding strength and failure mode between WPU and concrete was studied, and the micro-morphology and thickness of interfacial zone were analyzed by SEM and EDS. The results show that the mass loss of WPU increases with the increase of temperature, which indicates that film-forming speed become faster. Increasing the temperature can improve the early tensile strength of WPU, but the later tensile strength of WPU at higher temperature (50 ℃) decreases. With the increase of temperature and age, the interfacial bonding strength gradually increases, and the failure mode changes from single interface to composite failure mode. Microscopically, the increase of temperature makes the content of polyurethane hard segment in the interfacial zone gather, and the thickness of the interfacial zone increases from 44.21 μm to 65.08 μm, which leads to the increase of bonding strength.
通讯作者:
*陈徐东,河海大学土木与交通学院教授、博士研究生导师。2007年河海大学土木工程专业本科毕业,2014年河海大学结构工程专业博士毕业。目前主要从事混凝土结构耐久性、新型建筑材料及修补加固等方面的研究工作,主持国家自然科学基金、江苏省优秀青年基金项目、国家重点研发计划项目子专题等科研课题。近年来在混凝土材料领域发表论文100余篇,包括Journal of Mate-rials in Civil Engineering(ASCE)、Construction and Building Materials、Engineering Geology、Rock Mechanics and Rock Enginee-ring、《建筑材料学报》和《复合材料学报》等期刊。cxdong1985@163.com
唐建辉, 白银, 陈徐东, 张伟. 温度对水性聚氨酯-混凝土宏微观粘结特性的影响[J]. 材料导报, 2024, 38(4): 22060045-6.
TANG Jianhui, BAI Yin, CHEN Xudong, ZHANG Wei. Effect of Temperature on Macro- and Micro-Bonding Characteristics Between Waterborne Polyurethane and Concrete. Materials Reports, 2024, 38(4): 22060045-6.
1 Liu F, Zhang K K, Luo T, et al. Materials Reports, 2022, 36(8), 116 (in Chinese). 刘方, 张昆昆, 罗滔, 等. 材料导报, 2022, 36(8), 116. 2 Pan X, Shi Z, Shi C, et al. Construction and Building Materials, 2017, 132, 578. 3 He X Y, Li Y Q, Qin L D, et al. Journal of Functional Materials, 2022, 53(4), 111 (in Chinese). 何晓雁, 李毓佺, 秦立达, 等. 功能材料, 2022, 53(4), 111. 4 Zhang C, Li W H, Fan J P, et al. Concrete, 2019(12), 165 (in Chinese). 张铖, 李维红, 范金朋, 等. 混凝土, 2019(12), 165. 5 Wang Y Y, Chen L, Wang Z Q. Materials Reports, 2016, 30(9), 81 (in Chinese). 王媛怡, 陈亮, 汪在芹. 材料导报, 2016, 30(9), 81. 6 Meng Y G, Wang X Y. Surface Technology, 2018, 47(4), 274 (in Chinese). 孟永刚, 王向阳. 表面技术, 2018, 47(4), 274. 7 Chen Y, Liu Z Y, Guan H Y, et al. Materials Reports, 2021, 35(13), 13205 (in Chinese). 陈阳, 刘志勇, 管焓宇, 等. 材料导报, 2021, 35(13), 13205. 8 Somarathna H, Raman S N, Mohotti D, et al. Construction and Building Materials, 2021, 270, 121860. 9 Zhang S J, Wang R, Zhang L. Acta Materiae Compositae Sinica, 2010, 27(3), 190 (in Chinese). 张淑洁, 王瑞, 张丽. 复合材料学报, 2010, 27(3), 190. 10 Hao Y H, Xuan J Y, Ma S H, et al. Journal of Building Materials, 2021, 24(4), 794 (in Chinese). 郝贠洪, 宣姣羽, 马思晗, 等. 建筑材料学报, 2021, 24(4), 794. 11 Garbacz A, Piotrowski T, Courard L, et al. Construction and Building Materials, 2017, 134, 311. 12 Zhang H L, Yao R F, Luo W Y. Journal of Building Materials, 2009, 12(3), 292 (in Chinese). 张慧莉, 姚汝方, 雒望余. 建筑材料学报, 2009, 12(3), 292. 13 Liu M M, Han S, Pan J, et al. Materials Reports, 2018, 32(10), 1716 (in Chinese). 刘梦梅, 韩森, 潘俊, 等. 材料导报, 2018, 32(10), 1716. 14 Lin J W, Li F, Zhang D H, et al. Digital Printing, 2021(3), 130(in Chinese). 林健伟, 李菲, 张德浩, 等. 数字印刷, 2021(3), 130. 15 Dong Q X, Li S M, Zheng X G, et al. China Plastics, 2018, 32(9), 36 (in Chinese). 董全霄, 李书明, 郑新国, 等. 中国塑料, 2018, 32(9), 36. 16 Boubakri A, Elleuch K, Guermazi N, et al. Materials & Design, 2009, 30(10), 3958. 17 Standardization Administration of the People’s Republic of China. Test methods for building waterproofing coatings: GB/T 16777-2008. China Standards Press, China, 2008 (in Chinese). 中国国家标准化管理委员会. 建筑防水涂料试验方法: GB/T 16777-2008, 中国标准出版社, 2008. 18 Zeng G P, Wang L L, Dai G T, et al. New Chemical Materials, 2022, 50(1), 20 (in Chinese). 曾国屏, 王玲玲, 戴国太, 等. 化工新型材料, 2022, 50(1), 20. 19 Zhu H, Yan Z H, Xu Q, et al. Acta Polymerica Sinica, 2007(9), 892 (in Chinese). 朱宏, 颜志鸿, 徐强, 等. 高分子学报, 2007(9), 892. 20 Zhao P Z, Hu F Y, Huang X R. Engineering Plastics Application, 2011, 39(8), 32 (in Chinese). 赵培仲, 胡芳友, 黄旭仁. 工程塑料应用, 2011, 39(8), 32. 21 Li Z F, Yang G H, Li D H, et al. Spectroscopy and Spectral Analysis, 2000(3), 318 (in Chinese). 李再峰, 杨光华, 李德和, 等. 光谱学与光谱分析, 2000(3), 318. 22 Jkp A, Min O. Journal of Building Engineering, 2021, 38, 102223. 23 Zheng J. Research on the relationship between waterborne polyurethane molecular structure and the adhesive strength. Master’s Thesis, North University of China, China, 2014 (in Chinese). 郑静. 水性聚氨酯分子结构与粘结强度的关系研究. 硕士学位论文, 中北大学, 2014. 24 Sadowski Ł,Żak A, Hola J. Archives of Civil and Mechanical Enginee-ring, 2018, 18(2), 573.
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2024, Vol. 38 
