有好机械性质和温和 stimuliresponsiveness 的刺激应答的 hydrogels 的简单准备作为聪明的软机器人为他们的应用是必要的。机械地强壮的 Janus (N-isopropylacrylamide ) poly,有刺激应答的弯曲行为的 /graphene 氧化物(PNIPAM/GO ) nanocomposite hydrogels 被使用用一个特氟隆重盘子和一个玻璃盘子做的模子通过一个简单一步舞方法准备。在特氟隆重板表面上的空气水泡的剩余氧影响聚合和因此 cross-linking 密度,导致胶化的二个方面的不同 swelling/deswelling 率。因此,在在水里加热 / 凉下来之上弯曲 / 弄直行为的 hydrogels 展览。加入去 nanosheets 戏剧性地提高 Janus hydrogels 的机械性质。同时, GO nanosheets 的相片应答的性质也在红外照耀下面与 remotecontrollable 变丑给予 hydrogels。thermo 应答的 grippers 被表明的 Janus PNIPAM/GO hydrogels 的申请。
Simple preparation of stimuli-responsive hydrogels with good mechanical properties and mild stimuliresponsiveness is essential for their applications as smart soft robots. Mechanically strong Janus poly(Nisopropylacrylamide)/graphene oxide(PNIPAM/GO) nanocomposite hydrogels with stimuli-responsive bending behaviors are prepared through a simple one-step method by using molds made of a Teflon plate and a glass plate. Residual oxygen in the air bubbles on the Teflon plate surface affects the polymerization and hence the cross-linking density, leading to the different swelling/deswelling rates of the two sides of the gels. Therefore, the hydrogels exhibit bending/unbending behaviors upon heating/cooling in water. The incorporation of GO nanosheets dramatically enhances the mechanical properties of Janus hydrogels. Meanwhile, the photo-responsive property of the GO nanosheets also imparts the hydrogels with remotecontrollable deformation under IR irradiation. The application of the Janus PNIPAM/GO hydrogels as thermo-responsive grippers is demonstrated.