Understanding multiscale structure–property correlations in PVDF-HFP electrospun fiber membranes by SAXS and WAXS

小角X射线散射 静电纺丝 材料科学 纤维 复合材料 极限抗拉强度 纳米纤维 散射 聚合物 光学 化学 生物化学 物理
作者
Anjani K. Maurya,Eloïse Mias,Jean Schoeller,Ines E. Collings,René M. Rossi,Alex Dommann,A. Neels
出处
期刊:Nanoscale advances [Royal Society of Chemistry]
卷期号:4 (2): 491-501 被引量:11
标识
DOI:10.1039/d1na00503k
摘要

Electrospinning is a versatile technique to produce nanofibrous membranes with applications in filtration, biosensing, biomedical and tissue engineering. The structural and therefore physical properties of electrospun fibers can be finely tuned by changing the electrospinning parameters. The large parameter window makes it challenging to optimize the properties of fibers for a specific application. Therefore, a fundamental understanding of the multiscale structure of fibers and its correlation with their macroscopic behaviors is required for the design and production of systems with dedicated applications. In this study, we demonstrate that the properties of poly(vinylidene fluoride-co-hexafluoro propylene) (PVDF-HFP) electrospun fibers can be tuned by changing the rotating drum speed used as a collector during electrospinning. Indeed, with the help of multiscale characterization techniques such as scanning electron microscopy (SEM), small-angle X-ray scattering (SAXS), and wide-angle X-ray scattering (WAXS), we observe that increasing the rotating drum speed not only aligns the fibers but also induces polymeric chain rearrangements at the molecular scale. Such changes result in enhanced mechanical properties and an increase of the piezoelectric β-phase of the PVDF-HFP fiber membranes. We detect nanostructural deformation behaviors when the aligned fibrous membrane is uniaxially stretched along the fiber alignment direction, while an increase in the alignment of the fibers is observed for randomly aligned samples. This was analyzed by performing in situ SAXS measurements coupled with uniaxial tensile loading of the fibrous membranes along the fiber alignment direction. The present study shows that fibrous membranes can be produced with varying degrees of fiber orientation, piezoelectric β-phase content, and mechanical properties by controlling the speed of the rotating drum collector during the fiber production. Such aligned fiber membranes have potential applications for neural or musculoskeletal tissue engineering.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
安静一曲发布了新的文献求助10
1秒前
Fiona完成签到 ,获得积分10
1秒前
称心尔曼完成签到,获得积分10
1秒前
1秒前
香蕉觅云应助生动的如花采纳,获得10
2秒前
2秒前
apen785完成签到,获得积分10
2秒前
rhm完成签到,获得积分10
2秒前
坚强白玉完成签到,获得积分10
2秒前
3秒前
开朗醉波完成签到,获得积分10
3秒前
4秒前
8hua完成签到,获得积分10
4秒前
九号球完成签到,获得积分10
4秒前
雨诺完成签到,获得积分10
5秒前
5秒前
所所应助热情蜜蜂采纳,获得10
5秒前
zhaosheng发布了新的文献求助10
5秒前
崔哈哈完成签到,获得积分20
5秒前
科研通AI2S应助数学情缘采纳,获得10
5秒前
我是老大应助活力的语堂采纳,获得10
6秒前
6秒前
I1waml完成签到 ,获得积分10
6秒前
stqs完成签到,获得积分10
6秒前
7秒前
ZBW完成签到,获得积分20
7秒前
Efei完成签到,获得积分10
7秒前
秋子发布了新的文献求助10
7秒前
8秒前
崔哈哈发布了新的文献求助10
8秒前
风起青禾发布了新的文献求助10
8秒前
何照人应助科研通管家采纳,获得10
8秒前
Lucas应助科研通管家采纳,获得10
8秒前
CipherSage应助科研通管家采纳,获得10
8秒前
NexusExplorer应助科研通管家采纳,获得10
8秒前
英姑应助科研通管家采纳,获得10
8秒前
8秒前
iNk应助科研通管家采纳,获得20
8秒前
ding应助科研通管家采纳,获得10
8秒前
JamesPei应助科研通管家采纳,获得20
8秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3969060
求助须知:如何正确求助?哪些是违规求助? 3513962
关于积分的说明 11171223
捐赠科研通 3249302
什么是DOI,文献DOI怎么找? 1794772
邀请新用户注册赠送积分活动 875377
科研通“疑难数据库(出版商)”最低求助积分说明 804769