文献类型：期刊文献

英文题名：Conductive polyaniline-coated poly(p-phenylenetere phthamide) yarn-reinforced multiaxial composites for electromagnetic shielding

作者：Hong, Jianhan[1];Hu, Chengye[1];Jin, Lihua[1];Han, Xiao[1];Yao, Juming[2];Gali, Ignacio Gil[3]

机构：[1]Shaoxing Univ, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing, Zhejiang, Peoples R China;[2]Zhejiang Sci Tech Univ, Sch Mat, Hangzhou, Zhejiang, Peoples R China;[3]Univ Politecn Cataluna, Dept Elect Engn, Campus Terrassa, Terrassa, Spain

年份：2021

卷号：51

期号：3

起止页码：435

外文期刊名：JOURNAL OF INDUSTRIAL TEXTILES

收录：SCI-EXPANDED(收录号：WOS:000491752600001)、、EI(收录号：20194507632709)、Scopus(收录号：2-s2.0-85074406249)、WOS

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work is supported by the Public Welfare Technology Application Research Project of Shaoxing City (2018C10016), the China Postdoctoral Science Foundation (2017M621976), the Scientific Research Foundation of Shaoxing University (2017LG1006), and the international science and technology cooperation project of Shaoxing University (2019LGGH1003).

语种：英文

外文关键词：Conductive poly(p-phenylenetere phthamide); polyaniline composite yarn; in situ polymerization; continuous preparation; multiaxial composites; electromagnetic shielding

外文摘要：Poly(p-phenylenetere phthamide) fiber is a high-performance synthetic fiber whose reinforced composites are widely used for their advantages of high strength and lightweight. However, the further potential usage of poly(p-phenylenetere phthamide) and its reinforced composites is limited in areas such as antistatic materials, conducting materials, and electromagnetic shielding materials due to their high electrical insulation. To improve the electrical conductivity, an online polymerization coating technology was used to manufacture conductive poly(p-phenylenetere phthamide)/polyaniline composite yarns continuously. The conductive poly(p-phenylenetere phthamide)/polyaniline composite yarns' structure and properties such as surface morphology, electrical conductivity, Fourier-transform infrared spectroscopy spectra, thermogravimetric performance, and mechanical properties were studied in details. Then, three kinds of multiaxial composites were prepared by using the conductive poly(p-phenylenetere phthamide)/polyaniline composite yarn as the reinforcement and unsaturated polyester resin as a matrix, and the electromagnetic shielding performance of the composites was measured. The results indicated that the conductivity of conductive poly(p-phenylenetere phthamide)/polyaniline composite yarn can reach to similar to 160 S/m. The thermogravimetric performance of poly(p-phenylenetere phthamide) was reduced after conductive treatment. The mechanical properties of the composite yarns, such as the breaking strength and elongation, remained unchanged when the oxidant concentration was lower than 0.6 mol/L and decreased with the increase in the oxidant concentration. The electromagnetic shielding composites show a certain anti-electromagnetic radiation capability, and the shielding effectiveness value increased with the axial number and density of the conductive poly(p-phenylenetere phthamide)/polyaniline composite yarns. For the tetra-axial composite with a conductive yarn density of 37 yarns per inch, the average shielding effectiveness value in the frequency range of 100 MHz to 1500 MHz can exceed 22 dB.