Preparation and Properties Magnetite/Polyimide Composites

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science-medziagotyra Pub Date : 2023-01-26 DOI:10.5755/j02.ms.32188

Xue Fang, Xian-Lu Cui, G. Su, Mingyue Chen, Meihui Song, Xiaochen Zhang, Yang Wang, B. Huang

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引用次数: 0

Abstract

To make the polyimide (PI) composite material having both heat resistance and magnetic permeability, Fe3O4/PI magnetic polyimide composite powder was synthesized by one-step solvothermal method. 4,4'-diaminodiphenyl ether (ODA) as monomers, ether anhydride polyamic acid (PAA) was designed and prepared by Fe3+ and polyimide precursor-polyamic acid triethylamine salt (PAAS) was reacted in a reactor, and the PI/Fe3O4 composite powders were synthesized under the condition of high temperature and high pressure. The obtained PI/Fe3O4 composite powders were analyzed by infrared spectroscopy, microscopic morphology and thermal properties. The morphology and structure of the samples were both characterized by scanning electron microscopy (SEM) and infrared spectroscopy (IR). The thermal properties of the composite microspheres were studied via thermogravimetric analysis (TGA) and the magnetic properties were determined by a vibrating sample magnetometer (VSM). The saturation magnetization decreases gradually, increasing the polyimide content, with a saturation magnetization of PI/Fe3O4 determined to be 20.29 emu/g.

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磁铁矿/聚酰亚胺复合材料的制备与性能研究

为了使聚酰亚胺(PI)复合材料兼具耐热性和导磁性，采用一步溶剂热法合成了Fe3O4/PI磁性聚酰亚胺复合粉末。以4,4′-二氨基二苯醚(ODA)为单体，以Fe3+和聚酰亚胺前驱体聚胺酸三乙胺盐(PAAS)为原料，在反应器中反应制备了醚酸酐聚酰胺(PAA)，并在高温高压条件下合成了PI/Fe3O4复合粉体。对制备的PI/Fe3O4复合粉体进行了红外光谱、微观形貌和热性能分析。采用扫描电镜(SEM)和红外光谱(IR)对样品的形貌和结构进行了表征。用热重分析(TGA)研究了复合微球的热性能，用振动样品磁强计(VSM)测定了复合微球的磁性能。饱和磁化强度逐渐降低，聚酰亚胺含量增加，PI/Fe3O4的饱和磁化强度为20.29 emu/g。

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来源期刊

Materials Science-medziagotyra 工程技术-材料科学：综合

CiteScore

1.70

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： It covers the fields of materials science concerning with the traditional engineering materials as well as advanced materials and technologies aiming at the implementation and industry applications. The variety of materials under consideration, contributes to the cooperation of scientists working in applied physics, chemistry, materials science and different fields of engineering.