石墨烯-羧基化碳纳米管水泥基复合材料力学性能研究

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发布时间：2020-01-06 00:00:00

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石墨烯-羧基化碳纳米管水泥基复合材料力学性能研究

Mechanical Properties of Graphene-carboxylated Carbon Nanotubes Cement-based Composites

2022年第9期

石墨烯；羧基化碳纳米管；抗压强度；抗折强度；孔径分布

Graphene; Carboxylated carbon nanotube; Compressive strength; Flexural strength; Pore size distribution

2022年第9期

10.19761/j.1000-4637.2022.09.016.05

江苏省高等学校自然科学研究资助项目（21KJB560012）；江苏省新型环保重点实验室开放基金项目（JBGS031）；盐城工学院校级科研项目（xjr2021009）。

王小凡1,2，朱华2

1.北京交通大学土木建筑工程学院，北京 100044；2.盐城工学院土木建筑工程学院，江苏盐城 224051

王小凡1,2，朱华2

王小凡,朱华.石墨烯-羧基化碳纳米管水泥基复合材料力学性能研究[J].混凝土与水泥制品,2022(9):16-19.

WANG X F,ZHU H.Mechanical Properties of Graphene-carboxylated Carbon Nanotubes Cement-based Composites[J].China Concrete and Cement Products,2022(9):16-19.

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摘要：研究了不同质量比的石墨烯-羧基化碳纳米管对水泥基复合材料力学性能的影响。试验结果表明：掺入石墨烯（G）、羧基化碳纳米管（CNT）后，试件的抗压、抗折强度均出现了明显的提高；相较于单掺G和CNT，复掺0.05%的G和0.10%的CNT（G5C10）时，试件的抗压、抗折强度提高效果更显著，28 d的抗压、抗折强度达62.91 MPa和8.52 MPa，相较于对比组分别提高了37.5%和25.8%。MIP和SEM结果表明，G5C10为最佳掺入比例，此时试件的有害孔大幅减少，在微孔隙裂缝等薄弱区域形成致密化结构。 Abstract: The effects of different mass ratio of graphene-carboxylated carbon nanotubes on the mechanical properties of cement-based composites were studied. The test results show that the compressive strength and flexural strength of specimen increase obviously with the addition of graphene(G) carboxylated carbon nanotubes(CNT) composites. Compared with the specimen incorporated G or CNT, adding 0.10% CNT and 0.05% G is beneficial to improve its mechanical properties significantly, 28 d compressive strength and flexural strength reaching 62.91 MPa and 8.52 MPa, increasing by 37.5% and 25.8% compared with the control group. The MIP and SEM results show that G5C10 group is the best ratio, at this time, the harmful pores of cement mortar are greatly reduced, and then a densification structure in the weak areas such as micro-pores and cracks can be formed.

英文名 : Mechanical Properties of Graphene-carboxylated Carbon Nanotubes Cement-based Composites

刊期 : 2022年第9期

关键词 : 石墨烯；羧基化碳纳米管；抗压强度；抗折强度；孔径分布

Key words : Graphene; Carboxylated carbon nanotube; Compressive strength; Flexural strength; Pore size distribution

刊期 : 2022年第9期

DOI : 10.19761/j.1000-4637.2022.09.016.05

文章编号 :

基金项目 : 江苏省高等学校自然科学研究资助项目（21KJB560012）；江苏省新型环保重点实验室开放基金项目（JBGS031）；盐城工学院校级科研项目（xjr2021009）。

作者 : 王小凡1,2，朱华2

单位 : 1.北京交通大学土木建筑工程学院，北京 100044；2.盐城工学院土木建筑工程学院，江苏盐城 224051

王小凡1,2，朱华2

王小凡,朱华.石墨烯-羧基化碳纳米管水泥基复合材料力学性能研究[J].混凝土与水泥制品,2022(9):16-19.

WANG X F,ZHU H.Mechanical Properties of Graphene-carboxylated Carbon Nanotubes Cement-based Composites[J].China Concrete and Cement Products,2022(9):16-19.

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摘要

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结论

参考文献

引用本文

Abstract: The effects of different mass ratio of graphene-carboxylated carbon nanotubes on the mechanical properties of cement-based composites were studied. The test results show that the compressive strength and flexural strength of specimen increase obviously with the addition of graphene(G) carboxylated carbon nanotubes(CNT) composites. Compared with the specimen incorporated G or CNT, adding 0.10% CNT and 0.05% G is beneficial to improve its mechanical properties significantly, 28 d compressive strength and flexural strength reaching 62.91 MPa and 8.52 MPa, increasing by 37.5% and 25.8% compared with the control group. The MIP and SEM results show that G5C10 group is the best ratio, at this time, the harmful pores of cement mortar are greatly reduced, and then a densification structure in the weak areas such as micro-pores and cracks can be formed.

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石墨烯-羧基化碳纳米管水泥基复合材料力学性能研究

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