Electromagnetic shielding of ultrathin, lightweight and strong nonwoven composites decorated by a bandage-style interlaced layer electropolymerized with polyaniline

复合材料 材料科学 电磁屏蔽 聚苯胺 图层(电子) 绷带 聚合物 外科 聚合 医学
作者
Hao Lu,Bangquan Liao,Haibo Wang,Zhiwei Xu,Nan Li,Liangsen Liu,Xingxiang Zhang,Ning Wu
出处
期刊:Journal of Materials Science: Materials in Electronics [Springer Nature]
卷期号:30 (23): 20420-20431 被引量:5
标识
DOI:10.1007/s10854-019-02379-6
摘要

The electromagnetic shielding materials with characteristics of ultrathin, lightweight and high strength are the most advantageous materials in electromagnetic shielding. In this work, novel carbon fiber nonwoven composites with interlayer microstructure were designed and prepared. Due to their special structure, carbon fiber nonwoven composites coated with polyaniline by means of electropolymerization showed excellent electromagnetic shielding (65 dB) and mechanical properties (bending strength of 457 MPa). More intriguing, the absolute SE (Shielding Effectiveness) of the composites can be as high as 3904 dB.cm2/g. In order to explore the elementary mechanisms of electromagnetic loss, the relevant calculation of electromagnetic shielding effectiveness was carried out. The experimental and theoretical results show that the reflection is the dominant shielding performance of the carbon fiber nonwoven composites. However, with the increase of electropolymerization time, the absorption loss was enhanced and the reflection was weakened, which was caused by the conductive polyaniline network structure covered on the nonwoven fiber surface. Based on the comparison between experimental results and theoretical calculation, the effect of multiple reflection loss on the total electromagnetic shielding performance was improved, and the loss mechanism of multiple reflection was analyzed in detail. Moreover, the surface roughness of fiber and the formation of polymerization products by electropolymerization could effectively enhance the interfacial strength between carbon fiber nonwoven and epoxy, which observably increased the bending strength by 83%.
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
大幅提高文件上传限制,最高150M (2024-4-1)

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
1秒前
飞羽完成签到,获得积分10
1秒前
昭昭完成签到,获得积分10
2秒前
腦內小劇場完成签到,获得积分10
2秒前
2秒前
2秒前
3秒前
3秒前
3秒前
4秒前
英俊的铭应助心灵美小之采纳,获得10
4秒前
4秒前
要减肥的笑白完成签到,获得积分10
4秒前
5秒前
科研通AI2S应助fdsdvczx采纳,获得10
5秒前
叮当发布了新的文献求助10
5秒前
guchenniub发布了新的文献求助10
5秒前
allen发布了新的文献求助10
6秒前
小鱼爱吃肉应助下课了吧采纳,获得10
6秒前
ddjl发布了新的文献求助30
6秒前
Fyyyyyyyyyz发布了新的文献求助10
6秒前
幻梦境完成签到,获得积分10
7秒前
科目三应助天涯赤子采纳,获得10
7秒前
hzhniubility完成签到,获得积分10
7秒前
至秦发布了新的文献求助10
7秒前
Koi完成签到 ,获得积分10
7秒前
8秒前
8秒前
光亮靖琪发布了新的文献求助10
8秒前
豆子完成签到,获得积分10
8秒前
et关注了科研通微信公众号
8秒前
江峰发布了新的文献求助10
9秒前
粗暴的小馒头完成签到 ,获得积分10
9秒前
Lucas应助优雅采纳,获得10
9秒前
9秒前
聪慧雅霜发布了新的文献求助10
9秒前
9秒前
小马甲应助毛豆爱睡觉采纳,获得10
10秒前
充电宝应助巫马语柳采纳,获得10
10秒前
高分求助中
The late Devonian Standard Conodont Zonation 2000
The Lali Section: An Excellent Reference Section for Upper - Devonian in South China 1500
Nickel superalloy market size, share, growth, trends, and forecast 2023-2030 1000
Smart but Scattered: The Revolutionary Executive Skills Approach to Helping Kids Reach Their Potential (第二版) 1000
Mantiden: Faszinierende Lauerjäger Faszinierende Lauerjäger 800
PraxisRatgeber: Mantiden: Faszinierende Lauerjäger 800
A new species of Coccus (Homoptera: Coccoidea) from Malawi 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 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 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3245091
求助须知:如何正确求助?哪些是违规求助? 2888863
关于积分的说明 8255782
捐赠科研通 2557216
什么是DOI,文献DOI怎么找? 1385884
科研通“疑难数据库(出版商)”最低求助积分说明 650265
邀请新用户注册赠送积分活动 626473