Construction of unique conductive networks in carbon nanotubes/polymer composites via poly(?-caprolactone) inducing partial aggregation of carbon nanotubes for microwave shielding enhancement

被引：78
作者：
Tao, Jun-Ru [1 ]
Luo, Cheng-Long [1 ]
Huang, Ming-Lu [1 ]
Weng, Yun-Xuan [2 ]
Wang, Ming [1 ]
机构：
[1] Southwest Univ, Sch Chem & Chem Engn, Chongqing Key Lab Soft Matter Mat Chem & Funct Mfg, Chongqing 400715, Peoples R China
[2] Beijing Technol & Business Univ, Beijing Key Lab Qual Evaluat Technol Hyg & Safety, Beijing 100048, Peoples R China
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2023年 / 164卷
基金：
中国国家自然科学基金;
关键词：
A; Polymer -matrix composites (PMCs); B; Electrical properties; Electromagnetic wave shielding; HANSEN SOLUBILITY PARAMETERS; POLYMER BLEND; ELECTRICAL-CONDUCTIVITY; PERCOLATION-THRESHOLD; NANOCOMPOSITES; INTERPHASE; INTERFACE; STRENGTH; STRATEGY; BEHAVIOR;
D O I：
10.1016/j.compositesa.2022.107304
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Herein, a unique conductive network, which includes individual carbon nanotubes (CNT) and some CNT clusters (CNT/CNT-cluster) formed via poly(epsilon-caprolactone) (PCL) inducing partial aggregation of CNTs, is constructed in CNTs filled CPCs. Three different kinds of polymers, which are isotactic polypropylene (PP), polystyrene (PS) and polylactic acid (PLA), are used to evaluate the effect of polymer matrix on the unique conductive network. A comparative study on the electrical conductivity and microwave shielding properties are also carried in these composites. The effect of CNTs and PCL loadings on the formation of CNT-clusters in the samples is also discussed in this study. Due to PCL inducing partial aggregation of CNTs and the good distribution of residue CNTs in PLA, the excellent CNT/CNT-cluster conductive network is formed in the CNT/PCL/PLA composites. Comparing with the traditional conductive network, the CNT/CNT-cluster conductive network exhibits high efficiency for improving electrical conductivity and microwave shielding property.
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页数：11
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