Design and Performance of Super-hydrophobic Anti-icing Coating on Asphalt Pavement
ZHANG Zhengqi1, QIANG Yakui1, ZHANG Shihao1,2, WANG Dong3, ZHAO Fuqiang3
1 Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, China 2 Henan Provincial Communications Planning & Design Institute Co., Ltd, Zhengzhou 450046, China 3 Shaanxi Provincial Highway Expressway Construction Croup Co. Ltd.,Xi'an 710065, China
Abstract: Super-hydrophobic coating has super-strong hydrophobic property, which can delay pavement icing and has good anti-icing effect when used on asphalt pavement surface. However, the coating has the disadvantages of easy falling off and poor wear resistance, resulting in insufficient durability of ice and snow melting function. In order to improve the surface stability and durability of super-hydrophobic anti-icing coa-ting, this paper adopts the composite design scheme of "functional layer + adhesive layer", studies the material composition and proportion of functional layer and adhesive layer through experiments, and tests and evaluates the anti-icing effect and surface stability of composite coating. Through research and analysis, the functional layer was suggested to adopt hydrophobic SiO2 and Fe3O4 for nano-composite modification to improve the poor wear resistance and easy reflection of super-hydrophobic coating. Based on the test results of contact angle and rolling angle, it is recommended that the optimal content of anti-wear filler SiO2 and color blending material Fe3O4 are 2% and 2.5% of slurry mass respectively. It is suggested to use epoxy resin mixed system to improve the adhesion between the coating and the road surface. Based on the adhesion test results, the optimal ratio of epoxy resin, curing agent and epoxy toughening agent in the mixed system is determined to be 2∶1∶0.2. At the same time, the microscopic morphology of each layer was analyzed by SEM, and the action mechanism of each layer of materials was expounded. Finally, the road performance test results of the composite super-hydrophobic anti-icing coating show that the composite coating has good stability and durability, can resist dynamic water scouring and freeze-thaw cycles, and has good anti-icing performance.
1 Xiao Q Y, Hu H X, Wang L J, et al.Journal of Hebei University of Technology, 2012, 41 (4),64 (in Chinese) . 肖庆一,胡海学,王丽娟,等. 河北工业大学学报,2012,41(4), 64. 2 Kang J.The research on anticoagulant mixture of ice.Master's Thesis, Chongqing Jiaotong University, China,2011(in Chinese). 康捷.抗凝冰沥青混合料技术研究.硕士学位论文,重庆交通大学,2011. 3 Chou W,Liu J X,Zeng S.Surface Technology, 2012(6),108(in Chinese). 仇伟,刘见祥,曾舒.表面技术,2012(6),108. 4 YangB. Preparation of a super-hydrophobic self-cleaning coating for anti-icing transmission line. Master's Thesis, Chongqing University, China,2011(in Chinese). 杨斌.输电线路防覆冰用超疏水自清洁涂料的制备.硕士学位论文,重庆大学,2011. 5 GaoY L,Li X K.Materials Reports B: Research Papers,2017,31(7),132(in Chinese). 高英力,李学坤.材料导报:研究篇,2017,31(7),132. 6 Chen Y, Shan L Y, Tan Y Q, et al.Journal of Building Materials, 2014, 17 (2),340 (in Chinese). 陈瑶,单丽岩,谭忆秋,等.建筑材料学报,2014,17(2),340. 7 Ali Arabzadeh, Halil Ceylan.Transportation Research Record Journal of the Transportation Research Board,2016,1,10. 8 Jiang S L.Study on an environmental ice-deicing and snow-melting coat for asphalt pavement. Master's Thesis, Chang'an University, China,2012(in Chinese). 蒋松利.环保型沥青路面融冰雪涂层研究.硕士学位论文,长安大学,2012. 9 Li F J. Thin ice easy to remove type pavement coating application techno-logy research. Master's Thesis,Southeast University, China,2012(in Chinese). 李福建.薄冰易除型路面涂层应用技术研究.硕士学位论文,东南大学,2012. 10 Deng A J.Study of anticoagulant ice based on the hydrohobic surface of asphalt pavement. Master's Thesis,Southeast University,China,2013(in Chinese). 邓爱军.基于疏水表面的沥青路面抗凝冰性能研究.硕士学位论文,东南大学,2013. 11 Zheng M L, He L T..Journal of Traffic and Transportation Engineering,2013, 13(5),10. (in Chinese). 郑木莲,何利涛.交通运输工程学报, 2013, 13(5),10. 12 Lei J A,Zheng N X,Chen Z Y.Highway,2019,64(5),256(in Chinese). 雷俊安,郑南翔,陈朝阳.公路,2019,64(5),256.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2021, Vol. 35 
