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题名: Electrically conductive, mechanically robust, pH-sensitive graphene/polymer composite hydrogels
作者: Alam, Ashraful1, 4; Meng, Qingshi1, 5; Shi, Ge1; Arabi, Sherif1, 6; Ma, Jun1; Zhao, Ning2; Kuan, Hsu-Chiang3
关键词: Polymer ; Composites ; Electrical properties ; Mechanical properties ; Stress transfer
刊名: COMPOSITES SCIENCE AND TECHNOLOGY
发表日期: 2016-04-28
卷: 127, 页:119-126
收录类别: SCI
英文摘要: Electrically conductive yet mechanically strong composite hydrogels are highly desired in many applications, and graphene would be the most promising candidate for these hydrogels. While previous research utilized either as-prepared or reduced graphene oxide, we herein prepared high structural integrity yet solution-processable graphene sheets for the development of graphene/polymer composite hydrogels. A percolation threshold of electrical conductivity was found at 0.4 vol% graphene for these hydrogels. At 1.0 vol%, Young's modulus and compressive strength were respectively enhanced from 1.64 to 19.03 MPa and from 0.37 to 6.90 MPa, corresponding to 1060% and 1765% improvements. These improvements were explained from the perspectives of the graphene sheets' dispersion and their interaction with the polymer and water molecules. It is worth noting that the addition of graphene improved the hydrogel pH sensitivity. (C) 2016 Elsevier Ltd. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36096
Appears in Collections:高分子物理与化学实验室_期刊论文

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作者单位: 1.Univ S Australia, Sch Engn, Adelaide, SA 5095, Australia
2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
3.Far East Univ, Dept Energy Applicat Engn, Taipei 744, Tainan County, Taiwan
4.Univ Dhaka, Inst Leather Engn & Technol, Dhaka 1000, Bangladesh
5.Shenyang Aerosp Univ, Coll Aerosp Engn, Shenyang 110136, Peoples R China
6.Benha Univ, Dept Mech Engn, Fac Engn, Banha, Egypt
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