Issue 1, 2022, Issue in Progress
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RSC Advances

Polylactic acid based Janus membranes with asymmetric wettability for directional moisture transport with enhanced UV protective capabilities†

Yingshu Gu,a   Jing Wu, ORCID logo *a   Miaomiao Hu,a   Haohong Pi,a   Rui Wang ORCID logo a  and  Xiuqin Zhang ORCID logo *a  

* Corresponding authors

a Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China
E-mail: a.wujing@163.com, clyzxq@bift.edu.cn

Abstract

Efficient directional moisture transport can remove excess sweat away from the human body and keep the body dry; fully utilizing this functionality to improve the wearing experience is urgently needed in the area of functional textiles. Herein, a facile strategy is used to design an eco-friendly and biodegradable PLA membrane with enhanced directional moisture transport and UV protection abilities. The PLA-based Janus membrane with asymmetric wettability is fabricated via sol–gel and electrospinning methods. Titanium dioxide nanoparticles (TiO2) were anchored onto the surface of the PLA fabric during the TiO2 sol–gel fabrication process using polydopamine, forming superhydrophilic TiO2@PDA–PLA. Then a thin PLA fibrous membrane layer showing hydrophobicity was electrospun onto this (PLA-E). The Janus PLA-E/TiO2@PDA–PLA membrane was successfully fabricated. Due to the asymmetric wettability and anchored TiO2, the PLA-E/TiO2@PDA–PLA Janus membrane exhibits efficient directional moisture transport and excellent UV protection abilities, and this work may provide a new pathway for fabricating multifunctional personal protective materials and have attractive potential applications in the future.

Graphical abstract: Polylactic acid based Janus membranes with asymmetric wettability for directional moisture transport with enhanced UV protective capabilities

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Article information

DOI
https://doi.org/10.1039/D1RA07912C
Article type
Paper
Submitted
27 Oct 2021
Accepted
30 Nov 2021
First published
20 Dec 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 32-41

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Polylactic acid based Janus membranes with asymmetric wettability for directional moisture transport with enhanced UV protective capabilities

Y. Gu, J. Wu, M. Hu, H. Pi, R. Wang and X. Zhang, RSC Adv., 2022, 12, 32 DOI: 10.1039/D1RA07912C

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