Inverse mechanical-swelling coupling of a highly deformed double-network gel

Imaoka，Chika1; Nakajima，Tasuku2,3; Indei，Tsutomu2; Iwata，Masaya1,4; Hong，Wei5; Marcellan，Alba6; Gong，Jian Ping2,3

2023-05-10

10.1126/sciadv.abp8351

Science advances   影响因子和分区

2375-2548

2375-2548

Mechanical behaviors of a polymer gel are coupled with its swelling behavior. It has been known that typical hydrogels display extension-induced swelling and drying-induced stiffening, called normal mechanical-swelling coupling. In this study, we experimentally found that highly extended double-network (DN) hydrogels exhibit abnormal inverse mechanical-swelling coupling such as extension-induced deswelling and drying-induced softening. We established theoretical hyperelastic and swelling models that reproduced all the complicated mechanical and swelling trends of the highly deformed DN hydrogels. From these theoretical analyses, it is considered that the inverse mechanical-swelling coupling of a DN gel is derived from the extreme nonlinear elasticity of its first network at its ultimate deformation state. These findings contribute toward the understanding of the mechanics of rubber-like materials up to their ultimate deformation and fracture limit.

SCI ; EI

英语

NI论文

其他

JSPS KAKENHI["17H04891","22H04968"] ; JST, PRESTO[JPMJPR2098]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:001004504000007

AMER ASSOC ADVANCEMENT SCIENCE

20232714353256

Hydrogels ; Swelling

Colloid Chemistry:801.3 ; Chemical Products Generally:804 ; Materials Science:951

2-s2.0-85158829604

Scopus

1.Graduate School of Life Science,Hokkaido University,Sapporo,Japan
2.Faculty of Advanced Life Science,Hokkaido University,Sapporo,Japan
3.Institute for Chemical Reaction Design and Discovery (WPI-ICReDD),Hokkaido University,Sapporo,Japan
4.NGK Spark Plug Co. Ltd.,Nagoya,Japan
5.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
6.Sciences et Ingénierie de la Matière Molle,ESPCI Paris,CNRS,Sorbonne Université,Paris,75005,France

Imaoka，Chika,Nakajima，Tasuku,Indei，Tsutomu,et al. Inverse mechanical-swelling coupling of a highly deformed double-network gel[J]. Science advances,2023,9(19).

Imaoka，Chika.,Nakajima，Tasuku.,Indei，Tsutomu.,Iwata，Masaya.,Hong，Wei.,...&Gong，Jian Ping.(2023).Inverse mechanical-swelling coupling of a highly deformed double-network gel.Science advances,9(19).

Imaoka，Chika,et al."Inverse mechanical-swelling coupling of a highly deformed double-network gel".Science advances 9.19(2023).