Modelling drying pathways of an evaporating soft matter droplet  

作　　者：Guangle Du Fangfu Ye Hao Luo Guangyin Jing Masao Doi Fanlong Meng 

机构地区：[1]CAS Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China [2]Wenzhou Institute,University of Chinese Academy of Sciences,Wenzhou 325001,China [3]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China [4]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [5]Songshan Lake Materials Laboratory,Dongguan 523808,China [6]School of Physics,and State Key Laboratory of Photon-Technology in Western China Energy,Northwest University,Xi’an 710069,China [7]Center of Soft Matter Physics and its Applications,Beihang University,Beijing 100191,China

出　　处：《Communications in Theoretical Physics》2022年第9期194-198,共5页理论物理通讯（英文版）

基　　金：supports from Chinese Academy of Sciences(No.XDA17010504 and No.XDPB15);the National Natural Science Foundation of China(No.12047503);the support of the National Natural Science Foundation of China(Grant No.11774394);the Key Research Program of Frontier Sciences of Chinese Academy of Sciences(Grant No.QYZDB-SSW-SYS003)

摘　　要：Micro-droplets of soft matter solutions have different morphologies upon drying,and can become wrinkled,buckled or cavitated particles.We investigate the morphology evolution of a drying soft matter droplet in this work:at the early stage of drying,wrinkling or cavitation instability can occur in the droplet,depending on the comparison between the critical wrinkling and cavitation pressure;at a later stage of drying,no wrinkles will appear if cavitation happens first,while cavitation can still occur if wrinkling happens first.A three-dimensional phase diagram in the space of elastic length,gel layer thickness and weight loss is provided to illustrate the drying pathways of a soft matter droplet.This diagram can help guide future fabrications of micro-particles with desired morphologies.

关 键 词：soft matter solution DRYING INSTABILITIES 

分 类 号：O648.1[理学—物理化学]