关于SBS/CNT修改的青密封剂的热稳定性和疲劳性质的研究
Yafeng Gong1, Shuzheng Wu1, Haipeng Bi1
1College of Transportation, Jilin University, Changchun 130025, China.
Polymers
|October 14, 2023
概括
styrene-butadiene-styrene (SBS) 和碳纳米管 (CNT) 显著提高了青密封剂的性能. 最佳配方 (C1.0S5F5) 显示出优越的耐疲劳性,放松性和抗变形性,性能优于商业选择.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 土木工程 土木工程是指土木工程.
背景情况:
- 青密封剂受益于强化修饰剂,如碳纳米管 (CNT) 和 styrene-butadiene-styrene (SBS),以改善机械性能.
- 这些修饰剂增强了青密封剂的内部结构和整体性能.
研究的目的:
- 为了评估SBS/CNT修饰的青密封剂的高温风湿性质和耐老化性能.
- 为了比较修改密封剂的性能与商业上可用的选项.
主要方法:
- 正角实验设计,以选择密封剂配方.
- 风病学测试包括软化点,流量值,多温度频率扫描和多重应力爬行恢复.
- 使用CAM和Burgers模型进行分析.
主要成果:
- 最佳配方 (1% CNT,5% SBS,5% 毛皮素提取油) 显示出优越的疲劳耐受性.
- 该C1.0S5F5配方表现出优异的放松特性,减轻了二次裂纹.
- 伯格斯模型分析表明,C1.0S5F5.5.的C1.0S5F5.5.在繁忙的交通中具有强大的抗变形能力.
- 修改后的密封剂满足了传统的性能指标,并显示了增强的高温稳定性和耐老化性.
结论:
- SBS和CNT显著提高了青密封剂的耐疲劳性和高温性能.
- 优化的SBS/CNT修饰的青密封剂 (C1.0S5F5) 提供了卓越的质特性和耐用性.
- 这些发现支持使用SBS/CNT修改用于先进的青密封剂应用.
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