High-temperature resistance and wave-transmitting quartz-fibre/polyimide composite

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2022-01-03 DOI:10.1080/14658011.2021.2021726

Yuane Wu, Yuanyu Xiao, Caiyong Zou, Xiaohan Sha, L. Gao, Song Li

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引用次数: 3

Abstract

ABSTRACT Here, composite based on quartz fibre-reinforced fluoro-polyimide was fabricated using a hot press process, which was reported having well thermal and dielectric properties. The polyimide exhibited extremely high glass transition temperature (T g) up to 471°C, and 5% weight loss temperature (T 5) about 560°C both in nitrogen and air. Also, optimisation of processing parameters of composite was investigated. Moreover, the quartz fibre/polyimide composite possessed excellent high-temperature mechanical properties due to the high T g. Importantly, the composite exhibited excellent dielectric performance. Especially, the dielectric constant values had remained basically unchanged of 3.43–3.46 at 400°C in the frequency range of 7–18 GHz, indicative of a remarkable wave-transmitting property. Besides, the transmission efficiency of the composite was up to 83% in the frequency range of 7 –18 GHz. This study can serve as a basis for rapid evaluation of the high heat resistance and waving-transmitting property polyimide composite in various application environments.

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耐高温、透波石英纤维/聚酰亚胺复合材料

本文采用热压法制备了石英纤维增强氟聚酰亚胺复合材料，该材料具有良好的热学和介电性能。该聚酰亚胺在氮气和空气中均表现出极高的玻璃化转变温度(T g)，最高可达471℃，失重温度(T 5)约为560℃。并对复合材料的工艺参数进行了优化研究。此外，石英纤维/聚酰亚胺复合材料具有优异的高温力学性能，因为它具有高的T g。重要的是，复合材料具有优异的介电性能。特别是在7-18 GHz频率范围内，400°C时介电常数基本保持在3.43-3.46，具有良好的透射特性。在7 ~ 18 GHz频率范围内，该复合材料的传输效率高达83%。该研究可为快速评价聚酰亚胺复合材料在各种应用环境下的高耐热性和高透射性提供依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.