公开(公告)号：US10954375B2

公开(公告)日：2021-03-23

申请号：US15172131

申请日：2016-06-02

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Xuanhe Zhao ,  Shaoting Lin ,  Hyunwoo Yuk ,  Teng Zhang ,  German A P Hernandez

IPC: C08L33/26 ,  C09D201/02 ,  B32B27/04 ,  B32B27/30 ,  B05D3/04 ,  B05D3/10 ,  C08L35/00 ,  C09D133/26 ,  C09D135/00 ,  C09J133/26 ,  C09J135/00 ,  H01B1/12

Abstract: A robust hydrogel-solid hybrid formed of a substrate material having a nonporous and non-topographically patterned surface and a tough hydrogel bonded to the surface, the tough hydrogel having over 90 wt % water, and the hydrogel being bonded to provide interfacial toughness over 300 Jm−2, and even over 1000 Jm−2. The hydrogel is formed of polyacrylamide or polyethylene glycol diacrylate, which provide long-chain polymer networks, and chitosan, hyaluronan, or alginate, which provide mechanically dissipative components. An anchor, which can be a silane, a sulfide, or an amine, is disposed between the surface and the hydrogel to provide chemical bonding between the surface and the long-chain networks of the hydrogel.