苏州混凝土水泥制品研究院有限公司

头部文案

发布时间:2020-01-06 00:00:00
全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊(光盘版)全文收录期刊
华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊
SiO2溶胶和CNTs杂化增强水泥基复合材料性能研究
Study on Properties of Cement-based Composite Materials Reinforced by SiO2 Sol and Carbon Nanotubes Hybrid
2023年第3期
碳纳米管; SiO2溶胶;流动性;力学性能;微观结构
Carbon nanotubes(CNTs); SiO2 sol; Flowability; Mechanical property; Microstructure
2023年第3期
10.19761/j.1000-4637.2023.03.010.05
卢欢欢1,王文广2,李佩枫1
1.辽宁石油化工大学,辽宁 抚顺 113001;2.中国科学院金属研究所,辽宁 沈阳110016

卢欢欢1,王文广2,李佩枫1

卢欢欢,王文广,李佩枫.SiO2溶胶和CNTs杂化增强水泥基复合材料性能研究[J].混凝土与水泥制品,2023(3):10-14.

LU H H,WANG W G,LI P F.Study on Properties of Cement-based Composite Materials Reinforced by SiO2 Sol and Carbon Nanotubes Hybrid[J].China Concrete and Cement Products,2023(3):10-14.

浏览量:
1000
摘   要:采用超声波法制备了SiO2溶胶-碳纳米管(CNTs)分散液,研究了SiO2溶胶-CNTs分散液对水泥基复合材料性能的影响,并用SEM、EDS、XRD微观测试方法对其进行了表征。结果表明:以SiO2溶胶为分散介质,通过超声波法能够实现CNTs在水泥基复合材料中的均匀分散;掺1.5%的SiO2溶胶和0.15%的CNTs能进一步提高砂浆的力学性能;SiO2溶胶的火山灰活性消耗了砂浆中多余的水化产物Ca(OH)2,形成C-S-H凝胶密实了砂浆结构,CNTs在水泥浆体和细骨料界面之间起到纤维增强的作用,细化了孔隙,填补了微裂缝,降低了孔隙率。 Abstract: Carbon nanotubes(CNTs) were dispersed in aqueous solution by ultrasonic dispersion, and SiO2 sol was added to CNTs dispersion by gel method. The effects of CNTs and SiO2 sol on the properties of cement-based composite materials were studied, and it was characterized by SEM, EDS and XRD. The results show that CNTs can be uniformly dispersed in cement-based composite materials by ultrasonic method with SiO2 sol as dispersion medium. Adding 1.5% SiO2 sol and 0.15% CNTs can further improve the mechanical properties of mortar. The pozzolanic activity of SiO2 sol consumes the excess hydration product Ca(OH)2 in the mortar to form C-S-H gel and compact the mortar structure. CNTs plays a role of fiber reinforcement between the cement paste and the fine aggregate interface, refines the pores, fills the micro cracks, reduces the porosity.
英文名 : Study on Properties of Cement-based Composite Materials Reinforced by SiO2 Sol and Carbon Nanotubes Hybrid
刊期 : 2023年第3期
关键词 : 碳纳米管; SiO2溶胶;流动性;力学性能;微观结构
Key words : Carbon nanotubes(CNTs); SiO2 sol; Flowability; Mechanical property; Microstructure
刊期 : 2023年第3期
DOI : 10.19761/j.1000-4637.2023.03.010.05
文章编号 :
基金项目 :
作者 : 卢欢欢1,王文广2,李佩枫1
单位 : 1.辽宁石油化工大学,辽宁 抚顺 113001;2.中国科学院金属研究所,辽宁 沈阳110016

卢欢欢1,王文广2,李佩枫1

卢欢欢,王文广,李佩枫.SiO2溶胶和CNTs杂化增强水泥基复合材料性能研究[J].混凝土与水泥制品,2023(3):10-14.

LU H H,WANG W G,LI P F.Study on Properties of Cement-based Composite Materials Reinforced by SiO2 Sol and Carbon Nanotubes Hybrid[J].China Concrete and Cement Products,2023(3):10-14.

摘要
参数
结论
参考文献
引用本文

摘   要:采用超声波法制备了SiO2溶胶-碳纳米管(CNTs)分散液,研究了SiO2溶胶-CNTs分散液对水泥基复合材料性能的影响,并用SEM、EDS、XRD微观测试方法对其进行了表征。结果表明:以SiO2溶胶为分散介质,通过超声波法能够实现CNTs在水泥基复合材料中的均匀分散;掺1.5%的SiO2溶胶和0.15%的CNTs能进一步提高砂浆的力学性能;SiO2溶胶的火山灰活性消耗了砂浆中多余的水化产物Ca(OH)2,形成C-S-H凝胶密实了砂浆结构,CNTs在水泥浆体和细骨料界面之间起到纤维增强的作用,细化了孔隙,填补了微裂缝,降低了孔隙率。

Abstract: Carbon nanotubes(CNTs) were dispersed in aqueous solution by ultrasonic dispersion, and SiO2 sol was added to CNTs dispersion by gel method. The effects of CNTs and SiO2 sol on the properties of cement-based composite materials were studied, and it was characterized by SEM, EDS and XRD. The results show that CNTs can be uniformly dispersed in cement-based composite materials by ultrasonic method with SiO2 sol as dispersion medium. Adding 1.5% SiO2 sol and 0.15% CNTs can further improve the mechanical properties of mortar. The pozzolanic activity of SiO2 sol consumes the excess hydration product Ca(OH)2 in the mortar to form C-S-H gel and compact the mortar structure. CNTs plays a role of fiber reinforcement between the cement paste and the fine aggregate interface, refines the pores, fills the micro cracks, reduces the porosity.

扫二维码用手机看
未找到相应参数组,请于后台属性模板中添加

(1)以SiO2溶胶为分散介质,通过超声波法能够实现CNTs在水泥基复合材料中的均匀分散。
(2)在掺1.5%的SiO2溶胶和0.15%的CNTs耦合作用下,可以进一步提高水泥基复合材料的力学性能。
(3)掺入适量的SiO2溶胶、CNTs可以提高水泥基复合材料的力学性能。SiO2溶胶具有较高的火山灰活性,可消耗水泥中多余的水化产物Ca(OH)2,形成C-S-H凝胶,密实水泥基复合材料的结构;CNTs在水泥和细骨料界面之间起到界面增强的作用,细化孔隙,填补微裂缝,降低孔隙率。

[1] YOO D Y,SHIN W,CHUN B,et al.Assessment of Steel Fiber Corrosion in Self-healed Ultra-high-performance Fiber-reinforced Concrete and Its Effect on Tensile Performance[J].Cement and Concrete Research,2020,133:106091.
[2] 李方贤,杨椰榕,杨鹏飞,等.硅灰协同分散碳纳米管及其对水泥基材料性能的影响[J].硅酸盐通报,2019,38(5):1302-1307.
[3] 王茹,王培铭.聚合物改性水泥基材料性能和机理研究进展[J].材料导报,2007,21(1):93-96.
[4] GENG Y L,PEI M W,ZHAO X.Mechanical Behavior and Microstructure of Cement Composites Incorporating Surface-treated Multi-walled Carbon Nanotubes[J].Carbon,2005,43(6):1239-1245.
[5] SIKORA P,ELRAHMAN M A,CHUNG S Y,et al.Mechanical and Microstructural Properties of Cement Pastes Containing Carbon Nanotubes and Carbon Nanotube-silica Core-shell Structures, Exposed to Elevated Temperature[J].Cement and Concrete Composites,2019,95:193-204.
[6] LI Z,WANG H,SHAN H,et al.Investigations on the Preparation and Mechanical Properties of the Nano-alumina Reinforced Cement Composite[J].Materials Letters,2006,60(3):356-359.
[7] WANG B M,HAN Y,PAN B,et al.Mechanical and Morphological Properties of Highly Dispersed Carbon Nanotubes Reinforced Cement Based Materials[J].武汉理工大学学报(材料科学英文版),2013,28(1):82-87.
[8] 范杰,李庚英,王中坤.聚乙烯醇/碳纳米管复合强化水泥砂浆的力学性能及压敏性[J].混凝土与水泥制品,2019(3):1-5.
[9] 欧阳辉玄,王燕锋,赵晓华.工业级碳纳米管增强水泥基材料力学性能试验研究[J].混凝土与水泥制品,2018(8):10-14. 
[10] BIRICIK H,AKZ F,BERKTAY I L,et al.Study of Pozzolanic Properties of Wheat Straw Ash[J].Cement and Concrete Research,1999,29(5):637-643.
[11] GHICOV A,SCHMUKI P.Self-ordering Electrochemistry: A Review on Growth and Functionality of TiO2 Nanotubes and Other Self-aligned MOx Structures[J].Chemical Communications,2009,40(20):2791-2808.
[12] 杨旭东,杨昆明,邹田春,等.球磨对碳纳米管增强泡沫铝基复合材料压缩与吸能性能的影响[J].复合材料学报,2018,35(6):1518-1524.
[13] XU S,LIU J,LI Q.Mechanical Properties and Microstructure of Multi-walled Carbonanotube-reinforced Cement Paste[J].Construction and Building Materials,2015,76(1):16-23.
[14] 陈晓东,陈斌,刘国华.基于BP ANN-GA混合型算法的混凝土配合比优化设计研究[J].水力发电学报,2007,26(5):60-63.
[15] 任洪茹.水在碳纳米材料表面的润湿性[D].济南:山东大学,2016.
[16] 李晓东,孟强,王文辉,等.玄武岩纤维掺量及掺入方式等对混凝土抗压强度及破坏形态的影响[J].混凝土与水泥制品,2019(4):55-58.
[17] LI W,JI W,FOROOD T I,et al.Nano-silica Sol-gel and Carbon Nanotube Coupling Effect on the Performance of Cement-based Materials[J].Nanomaterials,2017,7(7):1-15.
[18] 丁红岩,张晓波,郭耀华,等.基于体视学的SAP混凝土气孔结构分析与研究[J].硅酸盐通报,2017,36(10):3230-3235.
[19] 孙进,丰帅.基于体视学混凝土内部结构分析[C]//北京力学会第二十四届学术年会.北京力学会第二十四届学术年会会议论文集.北京:北京力学会,2018:239-240.
[20] 李颖,唐明,聂元秋.纳米级SiOx与硅灰对水泥浆体需水量的影响[J].沈阳建筑工程学院学报(自然科学版),2002,18(4):278-281.
[21] 徐迅,卢忠远.纳米SiO2对水泥基材料密实填充性能的影响[J].中国粉体技术,2010,16(5):55-58.
[22] 陆富龙.碳纳米管对水泥基材料的作用机理研究[D].广州:广州大学,2019.
[23] LEE H S,BALASUBRAMANIAN B,et al.Durability Performance of CNT and Nano Silica Admixed Cement Mortar[J].Construction and Building Materials,2018,159:463-472.

卢欢欢,王文广,李佩枫.SiO2溶胶和CNTs杂化增强水泥基复合材料性能研究[J].混凝土与水泥制品,2023(3):10-14.

LU H H,WANG W G,LI P F.Study on Properties of Cement-based Composite Materials Reinforced by SiO2 Sol and Carbon Nanotubes Hybrid[J].China Concrete and Cement Products,2023(3):10-14.

相关文件

暂时没有内容信息显示
请先在网站后台添加数据记录。

关注《混凝土与水泥制品》

总访问量 468,401   网站统计

官方微信公众号关闭
苏州混凝土水泥制品研究院有限公司

关于我们    |    联系我们    |    订购杂志    |    回到顶部

版权所有:中国混凝土与水泥制品网  苏ICP备10086386号   网站建设:中企动力 苏州

版权所有:中国混凝土与水泥制品网

苏ICP备10086386号

网站建设:中企动力 苏州