优化使用响应表面方法来制备含有废机油的低粘度青的参数
Haibin Li1,2, Yongfei Zhang3,4, Mingming Zhang3,4
1School of Civil and Architectural Engineering, Xi'an University of Science and Technology, Xi'an, 710054, China. lihaibin1212@126.com.
概括
将废机油 (WEO) 添加到青中可以提高其可加工性. 预先将WEO与碎 (CR) 混合,并优化剪切时间,温度和速率等准备参数,可以获得最佳的低粘度青.
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.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 青的高粘度阻碍了施工可行性,影响了路面的舒适性和安全性.
- 废机油 (WEO) 被探索为一种潜在的添加剂,以改善青的性能.
- 优化添加序列和制备参数对于有效利用WEO至关重要.
研究的目的:
- 为了研究废机油 (WEO) 添加序列对青特性的影响.
- 用响应表面方法 (RSM) 确定低粘度青的最佳制备参数.
- 评估WEO作为青粘度降低剂的潜力.
主要方法:
- 对不同WEO添加序列的储存稳定性和老化特性进行比较分析.
- 低场核磁共振 (LF-NMR) 用于青粘度和流动性分析.
- 响应表面方法 (RSM) 以优化WEO内容,切割速率,温度和时间.
主要成果:
- 预混合WEO和碎 (CR) 导致了优越的低温性能,兼容性和流动性.
- 确定了最佳的准备参数:60分钟的剪切时间,180°C的剪切温度和5000r/min的剪切速度.
- 添加3.5%的WEO显示出作为青粘度降低剂的巨大潜力.
结论:
- WEO的添加序列显著影响青的性能.
- 使用RSM的优化准备参数可以实现所需的低粘度青特征.
- WEO是一种可行的添加剂,可以提高青的可加工性和性能.
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