Layered nanocomposites by shear-flow-induced alignment of nanosheets

纳米复合材料 剪切(地质) 材料科学 流量(数学) 剪切流 复合材料 纳米技术 机械 物理
作者
Chuangqi Zhao,Pengchao Zhang,Jiajia Zhou,Shuanhu Qi,Yoshihiro Yamauchi,Ruirui Shi,Ruochen Fang,Yasuhiro Ishida,Shutao Wang,Antoni P. Tomsia,Mingjie Liu,Lei Jiang
出处
期刊:Nature [Nature Portfolio]
卷期号:580 (7802): 210-215 被引量:412
标识
DOI:10.1038/s41586-020-2161-8
摘要

Biological materials, such as bones, teeth and mollusc shells, are well known for their excellent strength, modulus and toughness1–3. Such properties are attributed to the elaborate layered microstructure of inorganic reinforcing nanofillers, especially two-dimensional nanosheets or nanoplatelets, within a ductile organic matrix4–6. Inspired by these biological structures, several assembly strategies—including layer-by-layer4,7,8, casting9,10, vacuum filtration11–13 and use of magnetic fields14,15—have been used to develop layered nanocomposites. However, how to produce ultrastrong layered nanocomposites in a universal, viable and scalable manner remains an open issue. Here we present a strategy to produce nanocomposites with highly ordered layered structures using shear-flow-induced alignment of two-dimensional nanosheets at an immiscible hydrogel/oil interface. For example, nanocomposites based on nanosheets of graphene oxide and clay exhibit a tensile strength of up to 1,215 ± 80 megapascals and a Young’s modulus of 198.8 ± 6.5 gigapascals, which are 9.0 and 2.8 times higher, respectively, than those of natural nacre (mother of pearl). When nanosheets of clay are used, the toughness of the resulting nanocomposite can reach 36.7 ± 3.0 megajoules per cubic metre, which is 20.4 times higher than that of natural nacre; meanwhile, the tensile strength is 1,195 ± 60 megapascals. Quantitative analysis indicates that the well aligned nanosheets form a critical interphase, and this results in the observed mechanical properties. We consider that our strategy, which could be readily extended to align a variety of two-dimensional nanofillers, could be applied to a wide range of structural composites and lead to the development of high-performance composites. Layered nanocomposites fabricated using a continuous and scalable process achieve properties exceeding those of natural nacre, the result of stiffened matrix polymer chains confined between highly aligned nanosheets.
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
1秒前
2秒前
3秒前
姜惠完成签到 ,获得积分10
3秒前
小脸红扑扑完成签到 ,获得积分10
4秒前
奋斗的凡完成签到 ,获得积分10
4秒前
5秒前
zhutier完成签到,获得积分10
6秒前
wrr完成签到,获得积分10
6秒前
WxChen完成签到,获得积分10
6秒前
开朗艳一完成签到,获得积分10
8秒前
Wonder完成签到,获得积分10
9秒前
yang完成签到,获得积分10
11秒前
123123完成签到 ,获得积分10
12秒前
温暖宛筠完成签到,获得积分10
12秒前
小欣6116完成签到,获得积分10
13秒前
请叫我风吹麦浪应助冬月采纳,获得10
13秒前
LIUYONG发布了新的文献求助10
14秒前
14秒前
肖雪依完成签到,获得积分10
14秒前
影子完成签到,获得积分10
15秒前
16秒前
晨珂完成签到,获得积分10
16秒前
Florencia发布了新的文献求助10
18秒前
xiezhuochun发布了新的文献求助10
19秒前
19秒前
同瓜不同命完成签到,获得积分10
21秒前
牛马哥发布了新的文献求助10
22秒前
温婉的松鼠完成签到,获得积分10
22秒前
23秒前
辛勤的寄瑶完成签到,获得积分10
23秒前
Lauren完成签到 ,获得积分10
24秒前
25秒前
忆枫完成签到,获得积分10
29秒前
炒鸡小将发布了新的文献求助10
29秒前
花壳在逃野猪完成签到 ,获得积分10
29秒前
29秒前
银子吃好的完成签到,获得积分10
30秒前
西瓜霜完成签到 ,获得积分10
30秒前
科研废物完成签到 ,获得积分10
32秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
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 4038303
求助须知:如何正确求助?哪些是违规求助? 3576013
关于积分的说明 11374210
捐赠科研通 3305780
什么是DOI,文献DOI怎么找? 1819322
邀请新用户注册赠送积分活动 892672
科研通“疑难数据库(出版商)”最低求助积分说明 815029