在青粘合剂中的新型高弹性聚合物修饰剂的风湿学和微观结构特征
Syed Khaliq Shah1, Ying Gao1, Abdullah I Almansour2
1School of Transportation, Southeast University Road, Jiangning District, Nanjing 211189, China.
Polymers
|October 16, 2025
概括
三种新型高弹性聚合物修饰剂 (HEM) 提高了青粘合剂的性能,超过了传统标准. 它们提供了独特的修改机制,改善了质,热和微结构性质,以优化粘合剂应用.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 土木工程 土木工程是指土木工程.
背景情况:
- 青粘合剂需要先进的修饰剂来满足苛刻的性能标准.
- 高弹性聚合物修饰剂 (HEMs) 提供了增强青粘合剂性能的潜力.
研究的目的:
- 评估三种新型HEM在青粘合剂中的风学,热学和微观结构性能.
- 为了确定粘合剂性能和修饰器特性之间的相关性.
- 为了比较HEM性能与传统的修饰器,如SBS.
主要方法:
- 多个尺度的风湿学测试:旋转粘度,动态剪切风湿学 (频率扫描,科尔-科尔图,黑色图,主曲线),曲束风湿学.
- 使用差分扫描热量计 (DSC) 的热量分析.
- 通过光显微镜 (FM),原子力显微镜 (AFM) 和里埃变换红外光谱 (FTIR) 进行微结构性表征.
主要成果:
- HEM-B 显示出优越的高温硬度 (超级铺路路参数),但粘度增加.
- HEM-C表现出增强的热稳定性,具有较低的总和较低的玻璃过渡温度.
- 光显微镜显示,HEM-A显示了改善的相散和同质的微观结构,由光显微镜表明.
- 所有新型HEM都达到或超过了与 styrene-butadiene-styrene (SBS) 相比的性能值.
结论:
- 新型HEM提供了不同的修改机制:密集交叉连接 (HEM-B),热塑性兼容性 (HEM-C) 和网络形成 (HEM-A).
- 确定了质,热稳定性和微观结构之间的定量相关性.
- 结果为优化青粘合剂中的HEM提供了机制基础,强调剂量,兼容性和网络架构.
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