老化的影响微观结构和修饰青与GO/SBS复合材料修饰青的风学特性
Haiwei Xie1,2,3, Yixuan Jia2, Weidong Liu4
1School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China.
Polymers
|June 19, 2024
概括
石墨烯氧化物 (GO) 和 styrene-butadiene-styrene (SBS) 复合物增强了青的粘合剂.
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:
- 青粘合剂的老化会影响其微观结构和质性质,影响路面的性能.
- styrene-butadiene-styrene (SBS) 块共聚合物显示出与石墨烯氧化物 (GO) 的潜在兼容性.
- GO/SBS复合材料提供了一种新的方法来修改青粘合剂并提高耐老化的性能.
研究的目的:
- 调查GO/SBS复合材料修改对青粘合剂老化的影响.
- 分析改性青的微观结构和质性质变化.
- 为了评估石墨烯氧化物/styrene-butadiene-styrene改性青 (GO/SBS-MA) 的抗衰老性能.
主要方法:
- 通过溶液混合方法制备的GO/SBS复合材料.
- 经过压力衰老容器 (PAV) 和紫外线 (UV) 衰老的改性青粘合剂.
- 微结构分析使用福里埃变换红外光谱 (FTIR) 和原子力显微镜 (AFM).
- 使用动态剪切风湿计 (DSR) 和曲束风湿计 (BBR) 评估的风湿性质.
主要成果:
- 氧化石墨烯的添加提高了高温稳定性,但稍微降低了低温性能.
- 它减轻了碳基和硫氧化基的形成和C=C键的分解,增强了抗衰老特性.
- GO/SBS与青粘合剂之间的相互作用形成了针状聚合物,改善了粘合剂的稳定性.
- 更高的GO含量与更好的高温性能和耐老化性相关.
结论:
- 石墨烯氧化物显著影响青结合剂的宏观性质和微观结构.
- GO/SBS修改增强了青结合剂的耐老性.
- 建议在GO/SBS-MA中适度增加GO含量以获得最佳的抗衰老能力.
关键词:
原子力显微镜 (AFM) 是一种原子力显微镜.福里埃变换红外光谱法 (FTIR) 是指使用福里埃变换的红外光谱法.老化的老化 衰老的老化石墨烯氧化物 石墨烯氧化物具有风湿学性质的物质.styrenebutadiene styrene-modified asphalt (SBS-MA) 是一种基丁基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基
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