The potential of organic coatings in antifouling applications has been well-documented.Beyond their exceptional antifouling effects,these coatings should also possess good mechanical strength and self-healing capabili...The potential of organic coatings in antifouling applications has been well-documented.Beyond their exceptional antifouling effects,these coatings should also possess good mechanical strength and self-healing capabilities.Herein,a novel vinyl-based ionic liquid[VEMIM^(+)][Cl^(−)](IL)was in situ polymerized and then assembled onto the surface of liquid metal(GLM)nanodroplets to prepare GLM-IL.Subsequently,Ti_(3)C_(2)Tx(MXene)was modified with GLM-IL nanodroplets to obtain GLM-IL/MXene composite,which acts as an efficient photon captor and photothermal converters and can be further composited with PU film(GLM-IL/MXene/PU).Notably,the composite film significantly increases by∼117℃after exposure to 200 mW/cm2 light irradiation.This increase is attributed to the high photothermal conversion efficiency of MXene and the excellent plasma effect of GLM-IL.Compared with pure PU,the GLM-IL/MXene/PU film shows a 50%improvement in tensile strength and above 85.8%healing efficiency with a local temperature increase.Additionally,the as-prepared GLM-IL/MXene/PU film reveals satisfactory antifouling properties,achieving a 99.7%reduction in bacterial presence and an 80.3%reduction in microalgae.This work introduces a novel coating with antifouling and self-healing properties,offering a wide range of applications in the fields of marine antifouling and biomedicine.展开更多
基金financially supported by the National Natural Science Foundation of China(No.U21A2046)the Western Light Project of CAS(No.xbzg-zdsys-202118)+1 种基金the Shaanxi Provincial Science and Technology Innovation Team(No.2024RS-CXTD-63)the Research Fund of the State Key Laboratory of Solidification Processing(NPU),China(No.2023-TS-03).
文摘The potential of organic coatings in antifouling applications has been well-documented.Beyond their exceptional antifouling effects,these coatings should also possess good mechanical strength and self-healing capabilities.Herein,a novel vinyl-based ionic liquid[VEMIM^(+)][Cl^(−)](IL)was in situ polymerized and then assembled onto the surface of liquid metal(GLM)nanodroplets to prepare GLM-IL.Subsequently,Ti_(3)C_(2)Tx(MXene)was modified with GLM-IL nanodroplets to obtain GLM-IL/MXene composite,which acts as an efficient photon captor and photothermal converters and can be further composited with PU film(GLM-IL/MXene/PU).Notably,the composite film significantly increases by∼117℃after exposure to 200 mW/cm2 light irradiation.This increase is attributed to the high photothermal conversion efficiency of MXene and the excellent plasma effect of GLM-IL.Compared with pure PU,the GLM-IL/MXene/PU film shows a 50%improvement in tensile strength and above 85.8%healing efficiency with a local temperature increase.Additionally,the as-prepared GLM-IL/MXene/PU film reveals satisfactory antifouling properties,achieving a 99.7%reduction in bacterial presence and an 80.3%reduction in microalgae.This work introduces a novel coating with antifouling and self-healing properties,offering a wide range of applications in the fields of marine antifouling and biomedicine.
