含银复合乳液对混凝土表面抗菌性能的影响

硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (6): 2007-2014.

所属专题：水泥混凝土

含银复合乳液对混凝土表面抗菌性能的影响

武子晗¹, 李绍纯^1,2, 眭世玉¹, 蒋敏³, 周佩剑¹, 周子寒¹

1.青岛理工大学土木工程学院,青岛 266033;
2.青岛理工大学山东省蓝色经济区工程建设与安全协同创新中心,青岛 266033;
3.青岛理工大学环境与市政工程学院,青岛 266033

收稿日期:2022-01-27 修订日期:2022-03-25 出版日期:2022-06-15 发布日期:2022-07-01
通信作者: 李绍纯,博士,教授。E-mail:15063016520@126.com睢世玉,博士,副教授。E-mail:suishiyu0913@hotmail.com
作者简介:武子晗(1996—),男,硕士研究生。主要从事混凝土硅烷涂层的研究。E-mail:453080141@qq.com
基金资助:
国家自然科学基金(51978355)

Effect of Silver-Containing Composite Emulsion on Antibacterial Properties of Concrete Surface

WU Zihan¹, LI Shaochun^1,2, SUI Shiyu¹, JIANG Min³, ZHOU Peijian¹, ZHOU Zihan¹

1. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;
2. Collaborative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao University of Technology, Qingdao 266033, China;
3. Institute of Environment and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China

Received:2022-01-27 Revised:2022-03-25 Online:2022-06-15 Published:2022-07-01

摘要/Abstract

摘要： 海工混凝土是海洋开发必需的基础材料,然而海工混凝土服役寿命易受微生物腐蚀(MIC)的不良影响。本研究制备、表征并评价了一种新型Ag/TEOS/IBTS复合乳液 (ATS),该乳液可涂覆在混凝土表面预防MIC。与Ag/TEOS复合乳液(AT)和Ag/IBTS复合乳液(AS)相比,ATS防水性能最好,其接触角可达119.67°。激光共聚焦扫描显微镜(CLSM)结果表明,ATS、AT和AS具有良好的抗菌黏附性能,其中银粒子赋予了乳液优良的杀菌能力。FT-IR和SEM结果表明,砂浆表面的疏水层是由Si—O—Si交联形成的。这种新型涂料对提高海工混凝土的使用寿命具有重要意义。

关键词: 混凝土, 海工混凝土, 含银复合乳液, 硅烷涂层, 疏水表面, 抗菌性能, 纳米粒子, 微生物腐蚀

Abstract: Marine concrete is a necessary basic material for ocean development. However, the service life of marine concrete is adversely affected by microbiologically influenced corrosion (MIC). A new type of Ag/TEOS/IBTS composite emulsion (ATS) which can be coated on the concrete surface to prevent MIC was fabricated, characterized and evaluated. Compared with Ag/TEOS composite emulsion (AT) and Ag/IBTS composite emulsion (AS), ATS has the best hydrophobicity among the three emulsions, with a contact angle of 119.67°. Confocal laser scanning microscope (CLSM) results prove that ATS, AT and AS possess good antibacterial adhesion properties, and the silver particles endow the emulsions with excellent bactericidal ability. Results of FT-IR and SEM show that the hydrophobic layer is formed by the cross-linking of Si—O—Si on the surface of the mortar. The new type of coating is meaningful for the service life improvement of marine concrete.

Key words: concrete, marine concrete, silver-containing composite emulsion, silane coating, hydrophobic surface, antibacterial property, nanoparticle, microbiologically influenced corrosion

中图分类号:

TU528

武子晗, 李绍纯, 眭世玉, 蒋敏, 周佩剑, 周子寒. 含银复合乳液对混凝土表面抗菌性能的影响[J]. 硅酸盐通报, 2022, 41(6): 2007-2014.

WU Zihan, LI Shaochun, SUI Shiyu, JIANG Min, ZHOU Peijian, ZHOU Zihan. Effect of Silver-Containing Composite Emulsion on Antibacterial Properties of Concrete Surface[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(6): 2007-2014.

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含银复合乳液对混凝土表面抗菌性能的影响

Effect of Silver-Containing Composite Emulsion on Antibacterial Properties of Concrete Surface

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