Magnetic field controllable 3D self-assemble structure and its applications
Mechanical force induced 3D self-assembly of flat films is an important structure forming method.Polymer thin film is cut into a 2D patterned structure by femtosecond laser,a magnetic layer on the 2D structure is processed by ultraviolet(UV)lithography,and then a 3 D magnetic responsive structure is induced self-assembling by mechanical force.The applications of the structures fabricated by this method in bionic grippers and bionic tongues and other fields are discussed.The simulation results show that the finite element analysis(FEA)can accurately predict the 3D structure morphology of the 2D planar structure after mechanical force-induced self-assembly.Experiments show that the 3D structure can response quickly to the external magnetic field through the magnetic layer on it,and realize the reverse non-contact morphing regulation of the 3D self-assembled structure.
magnetic responseself-assemblyfemtosecond laserultraviolet(UV)lithographybionics