化学与分子科学学院

2019-10-02 作者:科技   |   浏览(58)

6月28日上午,应中国科学院兰州化学物理研究所固体润滑国家重点实验室邀请,美国康涅狄格大学教授孙陆逸访问兰州化物所,作了题为Bio-inspired Highly Sensitive and Reversible Mechanochromisms Based on a Polymer Bilayer Structure的学术报告。

报告内容摘要:In this presentation, nanocoatings with three distinct microstructures inspired by nature will be discussed. In the first part, organic/inorganic hybrid nanocoatings with a nacre-like microstructure generated via a facile co-assembly process will be presented.Thanks to the high concentration (up to 70 wt%) of well-aligned inorganic nanosheets and a well-integrated structure after crosslinking, such thin coatings exhibit exceptional mechanical, barrier, and flame retardant properties, while maintaining a high transparency. In the second part, inspired by marine organisms that can use muscle-controlled surface structures to achieve rapid and reversible changes in transparency, color, and patterns, a series of strain dependent mechanochromic devices will be presented. Utilizing microcracks generated via deformation-controlled surface-engineering, rigid nanocoatings affixed atop a soft substrate exhibit a broad range of mechanochromic behaviors with high sensitivity and reversibility. In the third part, a series of moisture responsive wrinkle dynamics inspired by human skin on a similar bilayer structure featuring different reversibility and stability will be discussed. These unique responsive dynamics result in the invention of a series of optical devices triggered by moisture, including anti-counterfeit tabs, encryption devices, water indicators, light diffusors, and anti-glare films. The above three biomimetic nanocoatings are promising for widespread applications.

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地点:化学与分子科学学院化西210会议室

孙陆逸介绍了自然界中生物所展现出的一些有趣的现象,并受此启发,设计合成了一系列仿生复合材料,开发了其在阻隔性能、传感器、防伪等方面的应用。报告结束后,孙陆逸与在场的老师和同学们就该领域的相关问题进行了互动。

报告人:Luyi SunProfessor

孙陆逸,美国康涅狄格大学化学和生物分子工程学院副教授和Castleman教授,2004年毕业于美国阿拉巴马大学,获得化学博士学位。现任RSC Advances副主编、中美塑料工程师学会主席、美国化学工程师学会复合材料分会主席等职位。他的研究领域涉及多功能纳米材料、聚合物复合材料以及绿色化学和工程等。

(Nature Communicationsdoi: 10.1038/ncomms11802)

孙陆逸作报告

报告人简介:孙陆逸,美国康涅狄格大学化学和生物分子工程学院副教授和Castleman教授,2004年毕业于美国阿拉巴马大学,获得化学博士学位。先后任RSC Advances副主编、中美塑料工程师协会(2013-2016)主席、SPE(2015-2016)工程性质和结构部主席、中美化学学会-西南分会(2011-2013)副主席、美国化学工程师协会复合材料部主席(AIChE,2012-2013)等职务,主要从事多功能纳米材料、聚合物复合材料以及绿色材料的设计和合成研究。

报告题目:Bio-inspired Stimuli-Responsive Hybrids

时间:2018年12月19日上午9:00

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