[1]蒋兴明,李果,吴晓锁,等.纳米TiO2对有机涂层混凝土抗氯盐侵蚀性能的影响[J].徐州工程学院学报(自然科学版),2019,(03):87-92.
 JIANG Xingming,LI Guo,WU Xiaosuo,et al.Effect of Nano-TiO2 on the Chloride Resistance of Concrete with Polymer Coatings[J].Journal of Xuzhou Institute of Technology(Natural Sciences Edition),2019,(03):87-92.
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纳米TiO2对有机涂层混凝土抗氯盐侵蚀性能的影响()
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《徐州工程学院学报》(自然科学版)[ISSN:1674-358X/CN:32-1789/N]

卷:
期数:
2019年03期
页码:
87-92
栏目:
工程技术
出版日期:
2019-09-15

文章信息/Info

Title:
Effect of Nano-TiO2 on the Chloride Resistance of Concrete with Polymer Coatings
文章编号:
1674-358X(2019)03-0087-06
作者:
蒋兴明1李果2吴晓锁2范春华2卢明杰 2
(1.新疆交通建设管理局,新疆 乌鲁木齐830014; 2.中国矿业大学 力学与土木工程学院,江 苏 徐州221116)
Author(s):
JIANG Xingming1LI Guo2WU Xiaosuo2FAN Chunhua2LU Mingjie2
(1.Xinjiang Communications Construction Administrative Bureau,Urumqi 830014,China; 2.School of Mechanical and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China)
关键词:
纳米TiO2 有机成膜涂层 混凝土 抗氯盐性能 紫外老化
Keywords:
nano-TiO2 organic film-forming coating concrete chloride resistance ultraviolet aging
分类号:
TU56+1.6
文献标志码:
A
摘要:
为获得纳米TiO2对有机涂层混凝土抗氯盐侵蚀性能的影响规律,以氯化橡 胶、环氧树脂、聚氨酯3种有机成膜涂料为基础,配制纳米TiO2改性有机成膜复 合涂料,并对制作的涂层混凝土试件进行氯盐溶液长期浸泡、紫外光辐照加速老化、氯离子 电通量和扫描电镜实验.研究结果表明:纳米TiO2颗粒的添加能够填充漆膜的微 观孔隙,减少漆膜中的微观缺陷,增大漆膜的致密性,从而提高涂层混凝土的抗氯离子侵蚀能 力,改善幅度达72% ~ 93%; 纳米TiO2颗粒的添加能够增大涂层对紫外线的吸收 和屏蔽作用,从而减小紫外光辐照对有机涂层的老化作用,提高涂层老化后的残余抗氯盐侵蚀 能力,改善幅度达34%~44%.
Abstract:
To investigate the effect of nano-TiO2 on the chloride resistance of concrete with polymer coatings,nano-TiO2 modified composite paints were produced based on chlorinated rubber,epoxy resin and polyurethane.Then,coated concrete specimens were fabricated and subjected to long-term immersion in chloride solution,accelerated aging by ultraviolet irradiation,Coulomb electric flux and SEM experiments.The results indicated that the addition of nano-TiO2 particles can fill the micro-pores in the coating film,reduce coatings' micro-defects,and increase coating film's density.As a result,it can effectively improve the chloride resistance of concrete with such coatings,and the improvements reached by 72%~93%.At the same time,nano-TiO2 particles can also increase the absorption and shielding capability of a coating against ultraviolet light,and therefore reduce the aging effects of ultraviolet irradiation on organic coatings.Hence,the residual chloride resistance of a coating after aging was substantially improved,and the improvements reached by 34%~44%.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-06-04 基金项目:新疆交通厅科技项目(2014-11); 中央高校基本科研业务费专项资金 (2017XKQY014) 作者简介:蒋兴明(1969-),男,高级工程师,主要从事道路交通工程质量控制研究. 通讯作者:李果(1973-),男,副教授,博士,硕士生导师,主要从事混凝土耐久性研究.
更新日期/Last Update: 2019-09-15