研究低成本高粘度青及其对多孔青路面的性能
Lei Xia1, Qidong Su2, Lingyan Shan2
1School of Materials Science and Engineering, Chang'an University, Xi'an 710061, China.
Polymers
|June 19, 2024
概括
开发了一种新的高粘度青,使用 styrene-butadiene-styrene (SBS) 和用于多孔青路面的其他添加剂. 与现有的选项相比,这种优化的青提供了更高的性能和显著的成本节省.
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.
- 聚合物化学 聚合物化学
背景情况:
- 多孔的青路面需要高粘度的青粘合剂,以提高耐用性和性能.
- 现有的高粘度青解决方案可能很昂贵,限制了广泛采用.
- 优化青粘合剂成分对于以成本有效的方式实现所需性能至关重要.
研究的目的:
- 开发一种具有成本效益,高粘度的青粘合剂,适用于多孔青路面应用.
- 为了确定乙烯 - 丁 - 乙烯 (SBS) 的最佳成分,化剂和溶解剂,用于青修饰.
- 评估开发的青粘合剂的性能和微观结构特性.
主要方法:
- 用一个直角实验设计 (三个因素,三个级别) 来确定青的最佳成分.
- 评估了常规和质性质,并与参考青类型进行了比较.
- 使用光显微镜和里埃变换红外光谱学进行了微结构分析.
主要成果:
- 最佳配方被确定为4-5%的 styrene-butadiene-styrene (SBS) + 1-2%的战术剂 + 0-3%的溶解剂 + 0.15%的稳定剂.
- 开发的高粘度青显著改善了软化点,5°C的柔性和60°C的动态粘度 (383,180 Pa·s).
- 风病学测试证实高温和低温等级为88-18°C,表明对永久变形和裂纹的优异耐受性.
结论:
- 与SBS改性,和矩阵青相比,开发的高粘度青表现出优越的性能特征.
- 优化的成分确保了组件的均分散,并增强了物理和化学性能.
- 这种具有成本效益的解决方案可节省约30%的成本,促进多孔青路面的应用.
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