arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2012.13125cond-mat.soft
收藏

软材料的有趣流动行为

The Intriguing Flow Behavior of Soft Materials

Ranjini Bandyopadhyay

摘要:

在室温下能因热应力而变形的材料称为软材料。包含均匀分布在流体相中的固体颗粒的胶体悬浮液(例如,烟、雾、墨水和牛奶)、乳液(蛋黄酱、乳液和奶油)、糊剂(番茄酱、牙膏)、颗粒介质(一袋米或沙子)和聚合物凝胶(多糖凝胶)可以被归类为软材料,并且在家庭和工业装置中普遍存在。软质材料具有丰富的流动和变形特性,如剪切变稀或触变性、剪切增稠或粘性、非零法向应力和屈服应力等。本文解释了软质材料的一些神秘的流动特性。

英文摘要:

Materials that can be deformed by thermal stresses at room temperature are called soft materials. Colloidal suspensions comprising solid particles evenly distributed in a fluid phase (smoke, fog, ink and milk, for example), emulsions(mayonnaise, lotions and creams), pastes (tomato ketchup, toothpaste), granular media (a bag of rice or sand), and polymer gels (polysaccharide gels) can be categorized as soft materials and are ubiquitous both at home and in industrial setups. Soft materials exhibit rich flow and deformation behaviors characterized by intriguing properties such as shear-thinning or thixotropy, shear-thickening or dilatancy, non-zero normal and yield stresses, etc. This article explains some of the mysterious flow properties of soft materials.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑