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在使用热还原方法制备rGO水泥的情况和性能研究

Jie Yao^1,2,3, Ao Guan^1,2,3, Wenqiang Ruan⁴

¹School of Materials and Environmental Engineering, Shenzhen Polytechnic University, Shenzhen 518055, China.

Materials (Basel, Switzerland)

|March 13, 2024

概括

研究人员使用冷干燥和热还原开发了减少的氧化石墨烯 (rGO) -水泥. 0.7%的最佳rGO含量提高了电导率和机械强度,显示了先进水泥材料的潜力.

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:

石墨烯氧化物 (GO) 是增强水泥性能的一种有前途的材料.
在水泥复合材料中开发有效的现场制备减少氧化石墨烯 (rGO) 的方法至关重要.
了解rGO-水泥复合材料的结构性质关系对于实际应用至关重要.

研究的目的:

在现场制备减少氧化石墨烯 (rGO) -水泥,使用冷干燥和高温热降解的组合.
为了研究rGO对水泥电导率和机械性能的影响.
为了确定rGO的最佳剂量,以提高水泥性能.

主要方法:

在现场从石墨烯氧化物 (GO) -水泥制备rGO-水泥.
冷干燥和高温热还原技术.
使用拉曼光谱,X射线光电子光谱 (XPS) 和扫描电子显微镜 (SEM) 的表征.
评估电阻力,压力强度和屈曲强度.

主要成果:

通过光谱和显微分析证实,GO-水泥成功转化为rGO-水泥.
电阻性随着rGO含量增加而下降,达到0.7重量%的透值.
压力和屈曲强度最初随着rGO的添加而增加,达到0.7%的重量%,然后下降.
为了提高性能,最优的rGO剂量被确定为0.7重量%.

结论:

在现场制备方法有效地生产了具有改进性能的rGO水泥.
最佳的rGO含量为0.7%的重量,可以平衡电导率和机械强度.
这种方法为修改和增强各种应用的水泥材料提供了一个可行的策略.

关键词:

这就是GOGOGOGOGOGOGOGO的意思.基于水泥的材料是基于水泥的材料.冰干燥的使用方法在rGOGO中使用.减少热的热量减少.

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