Jiwang Chen , Ni Yao , Tingliang Wang , Jiajia Wu , Mingle Ding , Xinxin Zhang , Shichao Zhang , Sam S. Yoon , Bin Ding
{"title":"High-performance fluorine-free waterproof and breathable electrospun nanofibrous membranes by thermally induced coating-crosslinking","authors":"Jiwang Chen , Ni Yao , Tingliang Wang , Jiajia Wu , Mingle Ding , Xinxin Zhang , Shichao Zhang , Sam S. Yoon , Bin Ding","doi":"10.1016/j.coco.2024.102076","DOIUrl":null,"url":null,"abstract":"<div><p>To meet the increasing environmental requirements, it is urgent and inevitable for high-performance waterproof and breathable membranes to be fluorine-free. However, developing these membranes faces significant challenges in achieving high water repellency while maintaining desirable water vapor permeability. Herein, we present a high-performance fluorine-free waterproof and breathable membrane using electrospinning technology and a thermally induced coating-crosslinking method. The prepared nanofibrous membrane has low surface energy and crosslinked fiber networks due to hydrophobic group grafting and heat treatment. Benefiting from its microstructure and surface properties, the fluorine-free nanofibrous membrane exhibits excellent hydrophobicity (water contact angle of >130°), desirable pore structure and mechanical strength. Furthermore, the obtained non-fluorinated membrane exhibits excellent water pressure resistance of 95.27 kPa and water vapor permeability of 7.41 kg m<sup>−2</sup> d<sup>−1</sup>. Meanwhile, the crosslinking agent enhances the bond between the non-fluorinated hydrophobic modifier and the substrate, increasing the stability and robustness of the membrane. This study provides guidance for designing and preparing environmentally friendly waterproof and breathable membranes, with extensive application prospects in outdoor sports, healthcare protection and building exteriors.</p></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"51 ","pages":"Article 102076"},"PeriodicalIF":6.5000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Communications","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452213924002675","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0
Abstract
To meet the increasing environmental requirements, it is urgent and inevitable for high-performance waterproof and breathable membranes to be fluorine-free. However, developing these membranes faces significant challenges in achieving high water repellency while maintaining desirable water vapor permeability. Herein, we present a high-performance fluorine-free waterproof and breathable membrane using electrospinning technology and a thermally induced coating-crosslinking method. The prepared nanofibrous membrane has low surface energy and crosslinked fiber networks due to hydrophobic group grafting and heat treatment. Benefiting from its microstructure and surface properties, the fluorine-free nanofibrous membrane exhibits excellent hydrophobicity (water contact angle of >130°), desirable pore structure and mechanical strength. Furthermore, the obtained non-fluorinated membrane exhibits excellent water pressure resistance of 95.27 kPa and water vapor permeability of 7.41 kg m−2 d−1. Meanwhile, the crosslinking agent enhances the bond between the non-fluorinated hydrophobic modifier and the substrate, increasing the stability and robustness of the membrane. This study provides guidance for designing and preparing environmentally friendly waterproof and breathable membranes, with extensive application prospects in outdoor sports, healthcare protection and building exteriors.
期刊介绍:
Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.