Cellulose nanocrystals/polydimethylsiloxane hybrid membranes for air dehydration at elevated temperatures

IF 4.8 2区 工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD
Nasim Alikhani, Ling Li, Jinwu Wang
{"title":"Cellulose nanocrystals/polydimethylsiloxane hybrid membranes for air dehydration at elevated temperatures","authors":"Nasim Alikhani,&nbsp;Ling Li,&nbsp;Jinwu Wang","doi":"10.1007/s10570-025-06707-4","DOIUrl":null,"url":null,"abstract":"<div><p>This study presents a cellulose nanocrystals (CNCs)/polydimethylsiloxane (PDMS) composite membrane for enhanced water vapor separation at elevated temperatures. CNCs/PDMS membranes were fabricated via a casting method and characterized for their permeability, selectivity, and thermal stability. Water vapor permeability was measured using a Payne diffusion cell coupled with a Dynamic Vapor Sorption instrument, while nitrogen gas permeability was determined with a gas permeation cell. The results indicate that incorporating 2% CNCs increased water vapor permeability by 24.8%, 30.9%, and 11.2% at 25 °C, 50 °C, and 80 °C, respectively, with a slight improvement in selectivity (up to 3.1%). However, increasing CNC concentration beyond 2% led to slight reductions in permeability, attributed to nanoparticle aggregation. The thermal dimensional stability of the optimized membranes improved, as evidenced by an 8.9% reduction in the coefficient of thermal expansion. These findings suggest that CNC-reinforced PDMS membranes could be promising candidates for energy-efficient air dehydration applications, though further studies are needed to optimize CNC dispersion and long-term performance under industrial conditions.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 14","pages":"8221 - 8237"},"PeriodicalIF":4.8000,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cellulose","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10570-025-06707-4","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
引用次数: 0

Abstract

This study presents a cellulose nanocrystals (CNCs)/polydimethylsiloxane (PDMS) composite membrane for enhanced water vapor separation at elevated temperatures. CNCs/PDMS membranes were fabricated via a casting method and characterized for their permeability, selectivity, and thermal stability. Water vapor permeability was measured using a Payne diffusion cell coupled with a Dynamic Vapor Sorption instrument, while nitrogen gas permeability was determined with a gas permeation cell. The results indicate that incorporating 2% CNCs increased water vapor permeability by 24.8%, 30.9%, and 11.2% at 25 °C, 50 °C, and 80 °C, respectively, with a slight improvement in selectivity (up to 3.1%). However, increasing CNC concentration beyond 2% led to slight reductions in permeability, attributed to nanoparticle aggregation. The thermal dimensional stability of the optimized membranes improved, as evidenced by an 8.9% reduction in the coefficient of thermal expansion. These findings suggest that CNC-reinforced PDMS membranes could be promising candidates for energy-efficient air dehydration applications, though further studies are needed to optimize CNC dispersion and long-term performance under industrial conditions.

Graphical abstract

Abstract Image

高温空气脱水用纤维素纳米晶/聚二甲基硅氧烷杂化膜
本研究提出了一种用于高温下增强水蒸气分离的纤维素纳米晶体(CNCs)/聚二甲基硅氧烷(PDMS)复合膜。采用铸造法制备了CNCs/PDMS膜,并对其渗透性、选择性和热稳定性进行了表征。水蒸气渗透率采用Payne扩散池和动态蒸汽吸附仪进行测量,氮气渗透率采用气体渗透池进行测量。结果表明,在25°C、50°C和80°C条件下,加入2%的CNCs分别提高了24.8%、30.9%和11.2%的水蒸气渗透率,选择性略有提高(高达3.1%)。然而,当CNC浓度超过2%时,由于纳米颗粒聚集,渗透率会略有降低。优化后的膜的热尺寸稳定性得到改善,热膨胀系数降低了8.9%。这些发现表明CNC增强PDMS膜可能是节能空气脱水应用的有希望的候选者,尽管需要进一步研究优化CNC分散和工业条件下的长期性能。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Cellulose
Cellulose 工程技术-材料科学:纺织
CiteScore
10.10
自引率
10.50%
发文量
580
审稿时长
3-8 weeks
期刊介绍: Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信