In view of the current living micro-environment and requirements of green economy,intelligent light-responsive humidification materials have become a hot spot in intelligent polymer materials.In this work,reversible p...In view of the current living micro-environment and requirements of green economy,intelligent light-responsive humidification materials have become a hot spot in intelligent polymer materials.In this work,reversible photoresponsive films with a mechanical stability and an excellent humidity adjustment performance are developed by modifying epoxy-ether-spiropyran(EPESP)on amino-nanofibers(PAN-NH2),which was produced through electrospinning.Such smart films for regulating wettability and micro-environment humidity can be reversibly manipulated by the simple switch of UV and visible light irradiation because of the unique transformation between polar ring-opened status and nonpolar ring-closed status of the spiropyran units.The effects of EPESP modification amount on the morphology,wettability,tensile strength and the ability to regulate humidity were investigated in detail.The results show that with the increase of modification amount of EPESP,both the humidity regulation and tensile strength increased;when the modification amount exceeds 7 mg,the range of regulating humidity increases slowly.展开更多
基金This work was supported by the National Natural Science Foundation of China(Nos.51963017,51503106)the Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region,China(No.NJYT-20-B28)+1 种基金the Fund of the Collaborative Innovation Center for Water Environment Security of Inner Mongolia Autonomous Region,China(No.XTCX003)the Research Project of Higher School,Department of Education of Inner Mongolia Autonomous Region,China(No.NJZY21545).
文摘In view of the current living micro-environment and requirements of green economy,intelligent light-responsive humidification materials have become a hot spot in intelligent polymer materials.In this work,reversible photoresponsive films with a mechanical stability and an excellent humidity adjustment performance are developed by modifying epoxy-ether-spiropyran(EPESP)on amino-nanofibers(PAN-NH2),which was produced through electrospinning.Such smart films for regulating wettability and micro-environment humidity can be reversibly manipulated by the simple switch of UV and visible light irradiation because of the unique transformation between polar ring-opened status and nonpolar ring-closed status of the spiropyran units.The effects of EPESP modification amount on the morphology,wettability,tensile strength and the ability to regulate humidity were investigated in detail.The results show that with the increase of modification amount of EPESP,both the humidity regulation and tensile strength increased;when the modification amount exceeds 7 mg,the range of regulating humidity increases slowly.
