通过模板免费的唯一步骤水热策略,用从煤炭焦油中提取的高度石墨化减少的氧化石墨烯来加强
Z L Abo-Shanab1, Eslam A Mohamed2, Marwa Adel1,3
1Petroleum Applications Department, Egyptian Petroleum Research Institute, P.O. 11776, Nasr City, Cairo, Egypt.
Scientific reports
|November 25, 2025
概括
这项研究开发了一种具有成本效益的方法,从煤焦油中制造高石墨化减少氧化石墨烯 (HG-RGO). 这种HG-RGO有效地提高了青的性能,提高了路面的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 土木工程 土木工程是指土木工程.
背景情况:
- 煤焦油 (CTP) 是碳材料的丰富前体.
- 开发具有成本效益的石墨烯生产对于材料增强至关重要.
- 用石墨烯修改青可以提高路面的耐用性.
研究的目的:
- 开发一种可扩展和经济的方法,从CTP中生产高质量的减少氧化石墨烯 (HG-RGO).
- 研究HG-RGO对青和青混合物的物理和机械性能的影响.
- 评估HG-RGO作为升级软 (笔级80/100) 到更硬级 (60/70) 的修饰剂.
主要方法:
- 在270°C使用 cetyltriethyl ammonium bromide (CTAB) 的单,无硬模板的热水法用于HG-RGO合成.
- 使用XRD,FTIR,拉曼光谱,HR-TEM和SAED进行HG-RGO的表征.
- (钢笔等级80/100) 被修改为1,3和5重%的HG-RGO,以产生石墨烯修改 (GMB).
- 评估了GMB和青混合物的物理性质 (软化点,透度,粘度) 和机械性质 (马歇尔稳定性,深,DMA).
主要成果:
- 水热方法成功地从CTP中产生了高质量的HG-RGO.
- 添加HG-RGO使青从笔级80/100升级到60/70,使软化点增加了10-55°C,使透率减少了17-68dmm,并使动态粘度增加了200-550cSt.
- 使用HG-RGO的青混合物显示出增强的机械性能,包括最大的马歇尔稳定性为2200公斤,并将深度降低三倍.
- DMA的结果表明,提高了高温路耐力和提高了疲劳性能.
结论:
- 从CTP中制造HG-RGO的新,具有成本效益和可扩展的方法被建立起来.
- HG-RGO有效地修改了青,显著改善了其物理和机械性能.
- 作为生产用于路面的高性能青粘合剂的修饰剂,HG-RGO显示出承诺.
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