聚碳酸超塑化剂修改的石墨烯氧化物:在水泥糊中扩散和提高性能
Haiming Zhang1, Xingyu Gan1, Zeyu Lu2
1Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China.
Nanomaterials (Basel, Switzerland)
|March 26, 2025
概括
聚碳酸超塑化剂改善了石墨烯氧化物在水泥糊中的分散. 这提高了机械强度,减少了碳排放,并加速了先进的水泥材料的水化.
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) 增强了水泥的水分,但由于Ca2+复合而面临分散的挑战.
- 提高GO的分散性对于最大限度地提高其在水泥复合材料中的强化潜力至关重要.
研究的目的:
- 为了增强石墨烯氧化物 (GO) 在水泥糊中的分散,使用聚碳酸盐 (PC) 超可塑剂.
- 调查PC修饰的GO (PC@GO) 对水泥的整形学,碳排放,机械性能和水分的影响.
- 评估PC@GO作为开发高性能水泥材料的战略.
主要方法:
- 石墨烯氧化物 (GO) 用聚碳酸盐 (PC) 超塑性剂进行了修改,以创建PC@GO.
- PC被分为两个部分:一个用于GO修饰,另一个作为减少水分的剂.
- 分析了含有PC@GO的水泥糊的气质,机械,水分和微观结构特性.
主要成果:
- 修改PC显著改善了在水泥中的GO分散.
- 使用PC@GO的水泥糊在7天后显示了增强的曲 (23.7%) 和压缩 (12.6%) 强度.
- 碳与强度的比率下降了14.8%,水合加快了7.50%,水的吸收/多孔性减少了35.2%/45.3%.
结论:
- PC@GO有效地克服了GO在水泥糊中的聚合问题.
- 增强的分散和PC@GO的特性导致优越的水泥材料性能.
- PC@GO是开发高性能,可持续的水泥材料的有希望的添加剂.
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