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【环境讲坛48期】Probing Intermolecular and Surface Interactions in Soft Materials and Engineering Systems

来源:    发布时间:2017-04-28    点击次数:

报告题目:Probing Intermolecular and Surface Interactions in Soft Materials and Engineering Systems towards Development of Functional Materials

报告人:Hongbo Zeng

报告时间:4月28日上午09:30
联系人:李良

报告内容:

The intermolecular interactions and surface characteristics of materials mostly determine their physicochemical properties and functionalities. Characterization of the intermolecular and surface interaction mechanisms of soft materials (e.g. surfactants, polymers, biopolymers) and engineering systems (e.g. stabilization/destabilization of water-in-oil or oil-in-water emulsion, bubble flotation, flocculation of solid particles and adsorption of organic/inorganic pollutants in waste water treatment) has attracted much research interest over the past three decades. In this talk, the basics of intermolecular and surface forces and the commonly used nanomechanical techniques, such as surfaces forces apparatus (SFA) and atomic force microscope (AFM) coupled with drop/bubble probe, will be briefly introduced. The recent progress on how we applied these advanced nanomechanical techniques for quantifying intermolecular and surface interactions of different materials and engineering systems will be presented. The fundamental interaction mechanisms elucidated have been further applied for the development of advanced functional materials with important engineering and environmental applications. Two examples will be given: (1) mussel wet adhesion mechanism and development of bio-inspired adhesives and self-healing materials(2) hydrophobic interaction mechanisms at solid/water and fluid/water interfaces and their implications in engineering systems (e.g. oil production, waste water treatment).

 

曾宏波为加拿大阿尔伯塔大学化学工程和材料工程系终身教授。曾宏波获清华大学工学学士和硕士学位,美国加州大学圣芭芭拉分校 (University of CaliforniaSanta Barbara) 博士学位。曾宏波已在高水平SCI专业期刊发表学术论文150, PNAS, Advanced Materials, ACS Nano, Nature Communications, Angewandte Chemie International Edition, Advanced Functional Materials, Macromolecules, Langmuir, Journal of Physical Chemistry B & C ,撰写和主编专著Polymer Adhesion, Friction and Lubrication” (Wiley),有专利9项。其学术论文近五年被引用>3000次。曾宏波实验室现在的研究方向主要包括胶体与界面科学、分子和纳米力学、高分子材料、纳米材料和生物智能材料、矿物工程/环境工程/石油工程中的界面现象现象等。实验室能对复杂流体和材料体系中各种分子间和界面间作用力进行直接测量和分析, 部分仪器和实验方法为独立开发。曾宏波2013年荣获加拿大Petro-Canada 青年创新者奖, 2016Martha Cook Piper Research Prize The Canadian Journal of Chemical Engineering Lectureship Award

报告人简介:Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada

 

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