全校師生：
我校定于2020年1月6日舉辦研究生靈犀學術殿堂——Claas Willem Visser報告會，現將有關事項通知如下：
1.報告會簡介
報告人：Claas Willem Visser助理教授
時間：2020年1月6日（星期一） 下午15：30
地點：長安校區理學院214會議室
報告題目：3D printing of multi-scale functional polymer foams
內容簡介：Polymer foams are cellular solids composed of solid and gas phases that are widely used as personal protection gear, pressure sensors, thermal insulation, acoustic materials, and scaffolds for artificial tissues. Their mechanical, thermal, and acoustic properties are determined by the respective composition, volume fraction and connectivity of both phases. Therefore, controlling their local architecture is hardly possible with current techniques, since bulk techniques lack control and microfluidic techniques lack the options to create foams with internal gradients. Here we introduce direct bubble writing, a technique for additive manufacturing of locally tunable polymer foams. By ejecting bubbles into the air, depositing them onto a substrate, and polymerizing them in-situ with UV light, open- and closed-cell foams with locally graded densities were printed into programmable macroscopic shapes at throughputs >10 mL min-1. We fabricated graded polymer foams in several motifs, including 3D lattices, shells, and out-of-plane pillars. Through the incorporation of silver nanoparticles, we produced conductive composite foams with controlled stiffness for use as soft pressure sensors. Direct bubble writing opens new avenues for rapidly designing and manufacturing designer polymer foams on demand.
2.歡迎各學院師生前來聽報告。報告會期間請關閉手機或將手機調至靜音模式。
黨委學生工作部
理學院
2020年1月3日
報告人簡介
Claas Willem Visser于2015年在荷蘭屯特大學獲博士學位，2016—2018年在美國哈佛大學做博士后，2018年至今在荷蘭屯特大學機械工程學院任助理教授，在Nature, Science Advances, Advanced Materials, Journal of Fluid Mechanics, Physical Review Fluids等權威期刊上發表論文三十余篇。
