聚氨酯-聚脲复合防护层的构筑及其在混凝土表面防护中的应用
Design and Application of Polyurethane/Polyurea Protective Coating and Its Applicationto Surface Protection of Concrete
摘 要
利用聚氨酯与聚脲的协同作用,制备了聚氨酯/聚脲混凝土复合防护层,达到了提高防护层性能和界面粘结强度的目的。同时,研究了复合防护层的力学性能、附着力、耐腐蚀性、抗冲击性、离子渗透性和抗冻性等性能。结果表明,聚氨酯/聚脲复合防护层具有优异的物理、化学性能,能够为混凝土构筑物提供很好的防护。
复合防护层
抗冲击
耐腐蚀
concrete
composite protective coating
impact resistance
corrosion resistance
Abstract
Based on synergistic effect of polyurethane and polyurea,a new kind of concrete composite protectivecoating was prepared,which can improve the performance of coating and the adhesion strength of interface.At thesame time,the physical and chemical properties of the protective coating such as mechanical properties,adhesion,corrosion resistance,impact resistance,ion permeability and freezing resistance were analyzed.The results show thatthe concrete protective coating has good physical and chemical properties,provides good protection to concrete.
中图分类号 TU599
所属栏目 试验研究
基金项目 国家自然科学基金(51208236)
收稿日期 2013/1/18
修改稿日期
网络出版日期
作者单位点击查看
备注孙德文,工程师,博士,
引用该论文: SUN De-wen,RAN Qian-ping,YANG Chong,YANG Yong,WAN Yun. Design and Application of Polyurethane/Polyurea Protective Coating and Its Applicationto Surface Protection of Concrete[J]. Corrosion & Protection, 2013, 34(11): 967
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参考文献
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【2】Medeiros M,Helene P.Efficacy of surface hydropho-bic agents in reducing water and chloride ion penetra-tion in concrete[J].Materials and Structures,2008,4(1):59-71.
【3】Kamaitis Z.Structural design of protective polymercoatings for reinforced concrete structures.Part I:General design consideration[J].Journal of Civil Engi-neering and Management,2007,13(1):11-17.
【4】Kamaitis Z.Structural design of protective polymercoatings for reinforced concrete structures.Part II:Experimental verification[J].Journal of Civil Engi-neering and Management,2007,13(1):19-26.
【5】Raupach M,Wolff L.Long-term durability of hydro-phobic treatment on concrete[J].Surface Coatings International Part B:Coatings Transactions,2005,88(2):127-133.
【6】Vipulanandan C,Liu J.Performance of polyurethane-coated concrete in sewer environment[J].Cement andConcrete Research,2005,35(9):1754-1763.
【7】Mccarthy M J,Giannakou A,Jones M R.Comparativeperformance of chloride attenuating and corrosion in-hibiting systems for reinforced concrete[J].Materialsand Structures 2004,37(10):671-679.
【8】Almusallam A,Khan F M,Dulaidjan S U,et al.Effec-tiveness of surface coatings in improving concrete dura-bility[J].Cement and Concrete Composites,2003,25(4/5):473-481.
【9】Remmele T E.Specifying high-performance coatingsfor concrete[J].Construction Specifier,2003,56(9):49-54.
【10】庞玉坤,李志高,马红亮.聚脲涂层和环氧涂层对混凝土抗冻性的影响[J].上海涂料,2009,47(9): 7-10.
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