Mechanics of single-network hydrogels with network imperfection

IF 5.4 1区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY GIANT Pub Date : 2024-05-14 DOI:10.1016/j.giant.2024.100287
Zhi Sheng, Siqi Yan, Jie Ma, Jiabao Bai, Zihang Shen, Zheng Jia
{"title":"Mechanics of single-network hydrogels with network imperfection","authors":"Zhi Sheng,&nbsp;Siqi Yan,&nbsp;Jie Ma,&nbsp;Jiabao Bai,&nbsp;Zihang Shen,&nbsp;Zheng Jia","doi":"10.1016/j.giant.2024.100287","DOIUrl":null,"url":null,"abstract":"<div><p>Polymer network is a crucial component of hydrogels, and network imperfection is a prominent feature of polymer networks, significantly influencing the performance of hydrogels. Two essential features of network imperfection are unequal chain lengths and dangling chains, both of which have a significant impact on the mechanical properties of single-network (SN) hydrogels. However, a theoretical framework considering network imperfection in SN hydrogels is still lacking. Here, we propose a theoretical model for SN hydrogels with network imperfection to study the damage behavior during deformation, in which we adopt different chain length distributions to accurately depict the real physical characteristics of the polymer network and incorporate the normalized critical chain force for a more precise measurement of network damage. To verify our theory, we discuss the effects of model parameters on the stress-stretch responses of SN hydrogels and predict the results of uniaxial loading-unloading tests of SN hydrogels, which agree well with experimentally measured stress-stretch behaviors. Finally, we implement the constitutive model into ABAQUS as a user subroutine to study the inhomogeneous deformation of hydrogels.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100287"},"PeriodicalIF":5.4000,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000523/pdfft?md5=c4db0e5572150588908c21a2b39cdba8&pid=1-s2.0-S2666542524000523-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"GIANT","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666542524000523","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

Polymer network is a crucial component of hydrogels, and network imperfection is a prominent feature of polymer networks, significantly influencing the performance of hydrogels. Two essential features of network imperfection are unequal chain lengths and dangling chains, both of which have a significant impact on the mechanical properties of single-network (SN) hydrogels. However, a theoretical framework considering network imperfection in SN hydrogels is still lacking. Here, we propose a theoretical model for SN hydrogels with network imperfection to study the damage behavior during deformation, in which we adopt different chain length distributions to accurately depict the real physical characteristics of the polymer network and incorporate the normalized critical chain force for a more precise measurement of network damage. To verify our theory, we discuss the effects of model parameters on the stress-stretch responses of SN hydrogels and predict the results of uniaxial loading-unloading tests of SN hydrogels, which agree well with experimentally measured stress-stretch behaviors. Finally, we implement the constitutive model into ABAQUS as a user subroutine to study the inhomogeneous deformation of hydrogels.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
具有网络缺陷的单网络水凝胶的力学特性
聚合物网络是水凝胶的重要组成部分,而网络不完善是聚合物网络的一个突出特征,对水凝胶的性能有重大影响。网络不完善的两个基本特征是链长不等和悬链,两者都对单网络(SN)水凝胶的机械性能有重大影响。然而,目前仍缺乏考虑单网络水凝胶中网络不完善的理论框架。我们采用不同的链长分布来准确描述聚合物网络的真实物理特性,并结合归一化临界链力来更精确地测量网络损伤。为了验证我们的理论,我们讨论了模型参数对 SN 水凝胶应力拉伸响应的影响,并预测了 SN 水凝胶单轴加载-卸载试验的结果,结果与实验测量的应力拉伸行为非常吻合。最后,我们将构成模型作为用户子程序应用到 ABAQUS 中,以研究水凝胶的不均匀变形。
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 去求助
来源期刊
GIANT
GIANT Multiple-
CiteScore
8.50
自引率
8.60%
发文量
46
审稿时长
42 days
期刊介绍: Giant is an interdisciplinary title focusing on fundamental and applied macromolecular science spanning all chemistry, physics, biology, and materials aspects of the field in the broadest sense. Key areas covered include macromolecular chemistry, supramolecular assembly, multiscale and multifunctional materials, organic-inorganic hybrid materials, biophysics, biomimetics and surface science. Core topics range from developments in synthesis, characterisation and assembly towards creating uniformly sized precision macromolecules with tailored properties, to the design and assembly of nanostructured materials in multiple dimensions, and further to the study of smart or living designer materials with tuneable multiscale properties.
期刊最新文献
Influence of activation/deactivation process on surface-initiated atom transfer radical polymerization: An in silico investigation Homochiral “8″-shaped nanotoroids assembled from polypeptides Small dop of comonomer, giant shift of dynamics: α-methyl-regulated viscoelasticity of poly(methacrylamide) hydrogels The effect of dynamic cross-links and mesogenic groups on the swelling and collapse of polymer gels Binary blends of poly(lactic acid) and poly(methyl methacrylate) for high energy density and charge/discharge efficiency capacitors
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1