文献类型：期刊文献

英文题名：Preparation of Conductive Silicone-Rubber Composites by Dynamic Magnetic Field-Induced Orientation of Ferrosoferric Oxide-Loaded Reduced Graphene Oxide

作者：Xie, Jikai Zhou, Qin Guo, Jiaxing Yin, Hong Hao, Zhi Luo, Zhu Xu, Yinhan Yang, Le He, Ruhui

第一作者：Xie, Jikai

通信作者：Hao, Z[1];Luo, Z[1]

机构：[1]Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China;[2]Guizhou Univ, Sch Mech Engn, Guiyang 550025, Peoples R China;[3]Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Key Lab Mat Chem Energy Convers & Storage, Minist Educ, Wuhan 430074, Peoples R China;[4]Guizhou Inst Technol, Guiyang 550025, Peoples R China

第一机构：Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China.

年份：2024

卷号：6

期号：10

起止页码：5684-5695

外文期刊名：ACS APPLIED POLYMER MATERIALS

收录：;EI(收录号：20242116119375);Scopus(收录号：2-s2.0-85193497999);WOS:【SCI-EXPANDED(收录号:WOS:001225226500001)】；

基金：The authors are thankful for the following: Science and Technology Department of Guizhou Province, Grant/Award Number [2023] 315; Science and Technology Talent Program Project Bureau of Guiyang Municipal, Chukke Contract [2023] 48-3.

语种：英文

外文关键词：Liquid silicone rubber; Fe3O4-loadedreduced graphene oxide; Dynamic magnetic field; Electrical property; Gradient material

摘要：Conductivity in flexible silicone rubber (SR) is usually achieved by a large number of fillers, which tend to degrade the mechanical properties. Therefore, improving the efficiency of conductive fillers is key to producing high performance conductive SR composites. In this study, approximately 28.58% ferrosoferric oxide was loaded onto graphene (Fe3O4@RGO) to prepare SR composites by inducing Fe3O4@RGO alignment in a room-temperature vulcanized SR matrix using homemade translational and rotational magnetic fields. Raman spectroscopy and scanning electron microscopy showed that the formation of magnetic field-induced Fe3O4@RGO-oriented alignment significantly improves the electrical conductivity of the SR composites. The orientation of Fe3O4@RGO in SR was achieved with a magnetic-field strength of 180 mT in a 2 cm/s translational magnetic field or in a 2 r/s rotating magnetic field. Moreover, the conductivity and electromagnetic shielding efficacy were up to 1.10 ms/mm and 20 dB for orientation with translational magnetic field, and 0.84 ms/mm, 21.6 dB for orientation with rotating magnetic field, respectively. The material's overall conductivity is improved by the formation of controllable gradient conductive materials under the influence of a translational magnetic field and a rotating magnetic field. Thus, this study provides a feasible method for preparing highly conductive soft polymers.