AAT纳米材料/碎粉复合物改性青和SBS改性青的物理,学和微观特性
Lu Sun1, Wenqing Zhong2, Ziwei Xiao3
1Department of Civil Engineering Technology, Rochester Institute of Technology, Environmental Management and Safety, Rochester, NY, United States of America.
PloS one
|January 11, 2024
概括
粉碎粉 (CRP) 增强了纳米美国先进技术 (AAT) 修改的青,与SBS修改的青相比,提供了优越的刚性和高温性能,同时也使废旧轮胎回收.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 聚合物科学 聚合物科学
背景情况:
- 开发可持续的青改性剂对于基础设施的寿命至关重要.
- 废轮胎回收提供了一个创造增值材料的机会.
- 像SBS这样的传统修饰器有局限性,需要探索替代方案.
研究的目的:
- 为了研究纳米-美国先进技术 (AAT) 改性青的性能,采用粉 (CRP).
- 评估CRP作为青中SBS修饰剂的可持续替代品.
- 为了确定AAT/CRP复合材料改性青的最佳配方.
主要方法:
- 风湿学测试包括动态剪切风湿计 (DSR),曲束风湿计 (BBR) 和多重应力爬行恢复 (MSCR).
- 物理分析和滚动薄膜炉 (RTFO) 测试用于性能评估.
- 福里埃变换红外光谱 (FTIR) 用于微观机制的研究.
主要成果:
- 最佳配方A3C3 (3.5%AAT,3%CRP) 与SBS改性青相比,表现出优越的刚性,高温性能和耐老性.
- 通过FTIR分析,AAT/CRP修饰的青显示出与SBS修饰的青相似的化学结构.
- 虽然显示了增强的高温性能,但AAT/CRP修改显示了降低低温性能.
结论:
- 粉碎粉 (CRP) 是纳米美国先进技术 (AAT) 修改青的可行修饰剂,提供更好的高温特性和耐老化性能.
- 该AAT/CRP复合物为传统SBS修饰剂提供了一个可持续的替代品,有助于废物回收工作.
- 可能需要进一步的研究来优化AAT/CRP修饰青的低温性能.
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