Porous superhydrophobic polymer/carbon composites for lightweight and self-cleaning EMI shielding application

被引：160
作者：
Ma, Xiaohui [1 ,2 ]
Shen, Bin [1 ]
Zhang, Lihua [1 ]
Liu, Yinfeng [2 ]
Zhai, Wentao [1 ]
Zheng, Wenge [1 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo Key Lab Polymer Mat, Ningbo 315201, Zhejiang, Peoples R China
[2] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2018年 / 158卷
基金：
中国国家自然科学基金;
关键词：
Functional composites; Polymer-matrix composites (PMCs); Electrical properties; Interface; POLY(VINYLIDENE FLUORIDE) MEMBRANES; SUPEROLEOPHOBIC SURFACES; EPOXY NANOCOMPOSITES; GRAPHENE AEROGELS; HIGH-PERFORMANCE; FOAMS; FABRICATION; WETTABILITY; ULTRATHIN; FILMS;
D O I：
10.1016/j.compscitech.2018.02.006
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Porous superhydrophobic polymer composites with satisfying electromagnetic interference (EMI) shielding and self-cleaning function were fabricated by choosing poly(vinylidene fluoride) as low surface-energy matrix as well as carbon nanotubes and graphene as hybrid filler through a modified water vapor-induced phase separation process with non-woven fabric (NWF) as a template in one step. The hybrid filler can form more effective conductive networks, and the NWF template combined with hybrid filler and porous microstructure composed of assemble spherulites can roughen the composites, creating multi-scaled raspy surface. The resultant material exhibited not only large water contact angle of 155.4 degrees +/- 2.7 degrees (in accord with superhydrophobic characteristic) and excellent EMI shielding effectiveness up to similar to 28.5 dB at only thickness of similar to 2 mm, but also good performance stability under ultraviolet (UV) irradiation. This simple and reproducible technique together with UV-resistant superhydrophobicity and EMI shielding would facilitate practical application of such materials. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：86 / 93
页数：8
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