黑龙江科技大学学报2017，Vol.27Issue(2)：186-191,6.DOI:10.3969/j.issn.2095-7262.2017.02.019
固-液界面纳米气泡的接触角
Contact angle of surface nanobubbles
摘要
Abstract
This paper is aimed at investigating the way the contact angle of surface nanobubbles is smaller than the Young contact angle.The investigation is performed by analyzing from three aspects,such as the interfacial gas enrichment(IGE),line tension and contamination;verifying the phenomenon of coexistence of IGE and nanobubbles by measuring the force-distance curves on highly ordered pyrolytic graphite (HOPG)-liquid surface before and after alcohol-water exchange;discussing the influence of contamination on the contact angle of nanobubble,based on the model of das;and analyzing and identifying the mechanism of line tension reducing the contact angle according to the modified Young equation.The results indicate that surface nanobubbles have a contact angle subjected to the effects of IGE,line tension and contamination and owe their abnormally smaller angle to the combined action of these three facotrs.关键词
纳米气泡/接触角/界面气体富集/线张力Key words
nanobubble/contact angle/interfacial gas enrichment (IGE)/line tension分类
化学化工引用本文复制引用
李大勇,赵学增..固-液界面纳米气泡的接触角[J].黑龙江科技大学学报,2017,27(2):186-191,6.基金项目
黑龙江省自然科学基金项目(E2016059) （E2016059）
