[1]罗锋,胡涛,李佩华,等.碳纳米管分散技术及其与聚合物、硫化镉复合材料研究进展[J].中国材料进展,2018,(04):048-56.[doi:10.7502/j.issn.1674-3962.2018.04.06]
 LUO Feng,,et al.Advances in Dispersion Technologies of Carbon Nanotubes and Its Composites with Polymer and Cadmium Sulfide[J].MATERIALS CHINA,2018,(04):048-56.[doi:10.7502/j.issn.1674-3962.2018.04.06]
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碳纳米管分散技术及其与聚合物、硫化镉复合材料研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2018年第04期
页码:
048-56
栏目:
前沿综述
出版日期:
2018-04-30

文章信息/Info

Title:
Advances in Dispersion Technologies of Carbon Nanotubes and Its Composites with Polymer and Cadmium Sulfide
作者:
罗锋123胡涛123李佩华3杨叶华3龚兴厚123吴崇刚123
1.湖北工业大学 绿色轻工材料湖北省重点实验室,湖北 武汉 430068 2.绿色轻质材料与加工湖北工业大学协同创新中心,湖北 武汉 430068 3.湖北工业大学材料与化学工程学院,湖北 武汉 430068
Author(s):
LUO Feng1 2 3 HU Tao1 2 3 LI Peihua3 YANG Yehua3 GONG Xinghou1 2 3 WU Chonggang1 2 3
1.Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China 2.Collaborative Innovation Center of Green Lightweight Materials and Processing, Hubei University of Technology, Wuhan 430068, China 3.School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
关键词:
碳纳米管分散聚合物硫化镉复合材料
Keywords:
carbon nanotube dispersion polymer cadmium sulfide composite
DOI:
10.7502/j.issn.1674-3962.2018.04.06
文献标志码:
A
摘要:
作为具有优异机械(强度、模量)与功能(电磁损耗、导热、导电、介电)性质的高比表面积一维纳米碳素材料,碳纳米管(CNTs)通常与聚合物或以硫化镉(CdS)为代表的半导体复合以制得高性能或功能纳米复合材料。当以CNTs为主体、聚合物或CdS为改性剂时,大多制备电磁波吸收或介电复合材料:对于吸波材料,有效的方法为将共轭聚合物或单晶CdS(均为半导体)包覆于CNTs管壁,利用半导体的高传导损耗、偶极极化损耗及CNTs半导体界面极化损耗三者的耦合来提高CNTs的吸波性能;对于介电材料,一般以低介电损耗极性聚合物基体有效分散CNTs,由此在获得复合材料高介电常数的同时,调控其介电损耗与击穿场强较纯CNTs分别显著降低与升高,从而实现高的电荷储能密度。而当以聚合物或CdS为主体、CNTs为改性剂时:若主体为普通聚合物,则凭借CNTs机械或功能改性剂的体积分数效应,可以制备高强高模、吸波、导热、导电及介电等复合材料;若主体为共轭聚合物或CdS半导体,则由于高比表面积导电CNTs对半导体强烈的光生电子转移效应,有利于制备高效光电(光伏、光致发光、光催化)复合材料。
Abstract:
As a high specific surface area, onedimensional carbon nanomaterial with outstanding mechanical (strength, modulus, etc.) and functional (electromagnetic loss, heat conduction, electric conduction, dielectric, etc.) properties, carbon nanotubes (CNTs) are usually compounded with polymer or semiconductor, represented by cadmium sulfide (CdS), to prepare highperformance or functional nanocomposites. When CNTs are used as the host with polymer or CdS as the modifier, electromagnetic wave absorbing or dielectric composites are mostly prepared. For the preparation of the former, an effective method is to wrap CNTs with a conjugated polymer or monocrystalline CdS (either is a semiconductor), thereby improving the wave absorbing property of CNTs via a ternary coupling of the semiconductor’s high conduction loss, its dipolar polarization loss, and the CNTssemiconductor interfacial polarization loss. While, for the preparation of the latter, CNTs are generally dispersed effectively in a low dielectric loss, polar polymer matrix to obtain a higher permittivity of the CNTs/polymer composite as well as to decrease its dielectric loss and increase breakdown field intensity significantly, thus to accomplish a high chargeenergy storage density. Conversely, a polymer or CdS also is used as the host with CNTs as the modifier. Based on an ordinary polymer host, the composites with high strength and modulus, wave absorbing, heat conductive, electrically conductive and dielectric can be prepared by means of a volume fraction effect of the CNTs mechanical or functional modifier incorporated. Nevertheless, a conjugatedpolymer or CdS semiconductor host favors the preparation of photoelectronic (photovoltaic, photoluminescent, photocatalytic, etc.) composites with high efficiency due to strong photoelectrons transfer effect on semiconductor caused by the high specific surface area and conductivity of CNTs.
更新日期/Last Update: 2018-05-08