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Thermoforming nanoparticle aggregates via interfacial ionic self-diffusion

delete2026-05-15
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OA
AI
S
Shun Ishioka *
Y
Yuki Hiromatsu
J
Jiaxin Peng
T
Taizo Kabe
T
Takaaki Kasuga
K
Kazuho Daicho
Y
Yohsuke Goi
N
Noriyuki Isobe
T
Tetsuo Yamaguchi
S
Shuji Fujisawa
H
Hirotaka Koga
T
Tadahisa Iwata
J
Junichiro Shiomi
M
Masaya Nogi
T
Tsuguyuki Saito *
DOI:10.1126/sciadv.aeb3281delete
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摘要

摘要

En 中文
纳米颗粒密集聚集物通常表现出优异的物理性能,但缺乏热塑性。因此,其形成过程仅限于稀释纳米颗粒分散液的干燥,导致形成薄而扁平的片材或细长的纤维。这一限制阻碍了纳米颗粒聚集物的应用。本研究开发了一种利用木质纤维素纳米纤维(CNF)对纳米颗粒聚集物进行热成型的策略。通过在CNF表面引入阴离子官能团,随后使阴离子与高离解度的离子液体(IL)对离子配对,形成了具有热塑性的CNF聚集物。聚集物内CNF界面处的IL对离子在热诱导下的自扩散,实现了CNF聚集物的热成型,例如三维模塑、位置选择性密封以及片材的多层层压。该热成型策略同样适用于二维碳纳米颗粒(氧化石墨烯)体系。
Keyword:
nanoparticle aggregates
thermoforming
cellulose nanofibers
ionic liquid
self-diffusion

期刊

Science Advances 封面图
Science Advances
IF:
12.5
论文数:
2.1W
被引数:
18.1W

机构

U
University of Osaka
学者数:
4.9K
论文数: 1.5K
被引数: 1
T
The University of Tokyo
学者数:
2.9K
论文数: 1.1K
被引数: 8.1W
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