聚苯乙烯基体中碳-石墨烯干凝胶、石墨和Ni-Zn铁氧体复合材料在x波段(8.2 ~ 12.4 GHz)的电磁性能

IF 0.5 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
Matheus Carvalho Bispo, B. H. K. Lopes, B. C. S. Fonseca, R. C. Portes, J. Matsushima, Miriam K.H. Yassuda, G. Amaral-Labat, M. Baldan, Antonio C. C. Migliano
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引用次数: 4

摘要

研究了聚苯乙烯(PS)基体中碳-石墨烯干凝胶(CGX)、片状石墨(GR)和镍-锌铁氧体(FeNiZn)复合材料在x波段(8.2 ~ 12.4 GHz)的电磁特性。本文通过对发泡聚苯乙烯(EPS)的回收利用,将发泡聚苯乙烯(EPS)废料加工成聚苯乙烯。利用聚苯乙烯作为介质基质,主要是因为聚苯乙烯是一种众所周知的有机聚合物,具有介损低、重量轻的特点,有利于在航空航天领域的复合材料中的应用。为了生产最终的复合样品,CGX添加剂之前是通过一种可持续的方法合成的,该方法利用了造纸和纸浆工业的废物(黑液)。然后分别通过扫描电镜(SEM)和拉曼光谱仪(Raman Spectrometer)进行形态和结构分析。另一方面,通过煅烧获得了用于复合材料生产的磁性铁氧体材料FeNiZn,而使用的GR则是商业化的。观察到CGX和GR的增加对复合介电常数的增加有影响,10 wt% CGX + 50wt% FeNiZn复合样品在10.5 GHz处出现吸收峰。研究结果与利用EPS废料作为介电基质的回收利用有关,从而开发出用于微波应用的更环保、更轻量的复合材料。关键词:Carbon-Graphene。合成的。回收利用。聚苯乙烯。微波炉。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electromagnetic properties of Carbon-Graphene Xerogel, Graphite and Ni-Zn Ferrite composites in polystyrene matrix in the X-Band (8.2 – 12.4 GHz)
The electromagnetic properties of Carbon-Graphene Xerogel (CGX), Flaky graphite (GR) and Nickel-Zinc ferrite (FeNiZn) composites in polystyrene (PS) matrix were studied in the X-Band range (8.2 – 12.4 GHz). In this work the Expanded Polystyrene (EPS) waste material was processed into polystyrene through the recycling of EPS. The polystyrene obtained was utilized as dielectric matrix, mainly because PS is a wellknown organic polymer that presents low dielectric loss and light weight, which contribute to applications in composites for the aerospace field. In order to produce the final composite specimens, the CGX additive was previously synthesized through a sustainable method that employed the use of waste from the paper and pulp industry (black liquor). Afterwards, the morphological and structural analysis were made through Scanning Electron Microscope (SEM) and Raman Spectrometer, respectively. On the other hand, the magnetic ferrite material, FeNiZn, was obtained for the composite production through calcination, whereas the GR utilized was commercially obtained. It was observed that the increase of CGX and GR influenced on the increase of the Complex Permittivity, and that 10 wt% CGX + 50wt% FeNiZn composite sample demonstrated an absorption peak at 10.5 GHz. The results are relevant concerning the recycling of EPS waste through its use as dielectric matrix, thus developing greener and low-weight composite materials to be used in microwave applications. Keywords: Carbon-Graphene. Composite. Recycling. Polystyrene. Microwave.
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来源期刊
Materia-rio De Janeiro
Materia-rio De Janeiro MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
1.00
自引率
25.00%
发文量
51
审稿时长
6 weeks
期刊介绍: All the articles are submitted to a careful peer-reviewing evaluation process by the journal''s Editorial Board. The Editorial Board, reviewers and authors make use of a web based proprietary automated tool to deal with the reviewing procedures.the Revista Matéria''s article reviewing restricted access system - SEER. Authors are not informed about the identity of the reviewers.
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