基于碳的多维纳米材料对低碳和高性能水泥复合材料的影响:批判性审查
Xiumei Gao1, Wujun Fang1,2, Weiwen Li1
1College of Civil & Transportation Engineering, Shenzhen University, Shenzhen 518060, China.
Materials (Basel, Switzerland)
|May 25, 2024
概括
与其他碳纳米材料相比,石墨烯氧化物 (GO) 为水泥复合材料提供了优越的机械和环境效益. 最佳的GO剂量将压力强度提高近50%,有助于低碳建筑.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 土木工程 土木工程是指土木工程.
背景情况:
- 混凝土复合材料在建筑中至关重要,推动了对增强机械性能和减少环境影响的研究.
- 识别低碳,高性能水泥复合材料仍然是一个挑战.
- 各种基于碳的纳米材料正在被探索,因为它们有可能改善水泥复合材料.
研究的目的:
- 为了比较四种碳纳米材料的机械和环境性能:富勒 (0D),碳纳米管 (CNTs,1D),石墨烯氧化物 (GO,2D) 和水泥复合材料中的纳米石墨血小板 (NGPs,3D).
- 确定最有效的纳米材料,以在水泥应用中实现高性能和环境可持续性.
- 为未来的研究和碳纳米材料在建筑中的应用提供指导.
主要方法:
- 进行了全面的文献审查,以收集不同碳纳米材料在水泥复合材料中的机械和环境性能数据.
- 分析的性能指标包括机械强度,能源消耗和与纳米材料生产和应用相关的二氧化碳排放.
- 对比分析的重点是材料维度 (0D,1D,2D,3D) 和最佳剂量的影响.
主要成果:
- 二维石墨烯氧化物 (GO) 在研究的纳米材料中表现出最好的整体机械和环境性能.
- 与其他形式相比,GO的能耗 (120-140MJ/kg) 和二氧化碳排放量 (0.17kg/kg) 较低.
- 最佳的GO剂量 (0.01-0.05 wt%) 显著提高了水泥复合材料的压力强度近50%,这是由于其高的特定表面积和矩阵粘附.
- 绩效排名是政府部门 > 非政府组织 > CNTs > Fullerenes.
结论:
- 石墨烯氧化物 (GO) 是最有前途的基于碳的纳米材料,用于开发高性能,低碳的水泥复合材料.
- GO的独特特性,如高表面积和强粘合力,是其卓越性能的关键.
- 这项研究为工程师和研究人员提供了宝贵的见解,旨在优化纳米材料在可持续建筑中的使用.
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