塑料科技2023，Vol.51Issue(11)：39-44,6.DOI:10.15925/j.cnki.issn1005-3360.2023.11.008
酸致变色微纳米纤维膜的制备及其性能研究
Preparation and Performances of Acidochromic Micro-nanofiber Membranes
摘要
Abstract
A series of micro-nanofiber composite membranes with stimuli-responsive properties were prepared using electrospinning technique by combining fluorescent small molecules TPECNPy-2 and TPECNPy-3 with polylactic acid(PLA).The effects of the content of TPECNPy-2 and TPECNPy-3 on the structure and acidochromic properties of the fiber composite membranes were analyzed.The results show that the relative ratio of TPECNPy-2 and TPECNPy-3 has no significant effect on the chemical structure,fiber morphology and aggregation structure of the composite membrane,and the diameter of the prepared fibers ranges between 400～500 nm.Under the action of acid vapor,the maximum fluorescence emission wavelength of the composite fiber membrane change from 492～499 nm before acid fumigation to 542～587 nm.The greater the content of TPECNPy-2 in the system,the more obvious the spectral red shift.The fluorescence emission of the composite membrane after acid fumigation is restored to the initial state by ammonia fumigation.When fluorescent small molecules are added,the contact angle of the fiber membrane increaseds from 101.6° to 125°.The series of composite fiber membranes have good reversible acidochromic properties.The hydrophobicity of the fiber membrane is significantly improved after the addition of two organic small molecules.关键词
酸致变色/微纳米纤维/静电纺丝Key words
Acidochromic/Micro-nanofiber/Electrospinning分类
通用工业技术引用本文复制引用
何继银,陈佳怡,植美芳,陈健荣,马春平,李杨,谢高艺..酸致变色微纳米纤维膜的制备及其性能研究[J].塑料科技,2023,51(11):39-44,6.基金项目
贵州省科技厅自然科学基金项目(重点项目)(黔科合基础[2019]1419) （重点项目）
广东省基础与应用基础研究基金自然科学基金项目(面上项目2022A1515010969) （面上项目2022A1515010969）
2021年省乡村振兴战略专项资金("大专项+任务清单")项目(江科[2021]183号) （"大专项+任务清单"）
五邑大学大学生创新训练项目(202211349010) （202211349010）
