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疏水粒状固体的湿度评估:使用表面活性剂吸附的风学方法
Xilena Villegas Arcos1, Juliet Daniela Blanco Mayorga1, Arlex Chaves-Guerrero1
1Grupo de Investigación en Fenómenos Interfaciales, Reología y Simulación de Transporte-FIRST, Universidad Industrial de Santander, Bucaramanga 680002, Colombia.
Materials (Basel, Switzerland)
|March 27, 2025
概括
这项研究引入了一种新的风学方法,用于测量像本托尼特粘土这样的颗粒状固体的湿透性. 与传统的接触角测量相比,这种方法提供了一种更可靠的方法来评估表面特性.
科学领域:
- 材料科学 材料科学 材料科学
- 合体和表面化学
- 类风病学 类风病学 类风病学
背景情况:
- 颗粒状固体的湿透性对于石油回收和涂料等行业至关重要.
- 传统的接触角测量与异质或多孔材料作斗争.
- 需要一种新方法来准确评估复杂系统中的可湿性.
研究的目的:
- 开发和验证一种用于确定颗粒状固体湿透性的气质学方法.
- 为了研究表面活性剂吸附和本托尼特悬浮物质的质性质之间的关系.
- 为传统的湿度评估技术提供替代方案.
主要方法:
- 使用神经学技术 (粘度,振荡幅度扫描,厚度回收) 进行水性和油性顿石悬浮的表征.
- 通过二二二二硫酸盐吸附修改本托尼特粘土,以控制疏水性.
- 使用吸附异热法来量化固体表面覆盖面积.
- 为了验证,与传统的接触角测量进行比较.
主要成果:
- 对于质性表征而言,最优的本托尼特度被确定为8%.
- 增加的疏水性 (由于表面活性剂吸附) 与水系统中的粘度和粘性弹性降低相关.
- 疏水性托尼特悬浮物在油性系统中表现出牛顿流动行为.
- 风病学发现与接触角度测量结果一致,证实了增强的疏水性.
结论:
- 拟议的风学方法有效评估颗粒状固体的湿透性,克服传统方法的局限性.
- 这种方法为粒子系统中界面性质的表征和优化提供了一个新的途径.
- 这些发现对需要量身定制的湿度和流量特征的行业具有重大意义.
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