PMI 泡沫塑料及其夹层结构的高频介电性能研究

复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (5): 18-21.

PMI 泡沫塑料及其夹层结构的高频介电性能研究

张乐, 张广成

西北工业大学理学院应用化学系,西安 710129

收稿日期:2012-09-10 出版日期:2013-08-28 发布日期:2022-03-15
作者简介:张乐(1988-),男,硕士研究生,主要从事高性能PMI泡沫塑料的研究,zhangle6677@163.com。

THE HIGH-FREQUENCY DIELECTRIC PROPERTIES OF PMI FOAM AND SANDWICH STRUCTURES

ZHANG Le, ZHANG Guang-cheng

Department of Applied Chemistry, School of Science,Northwestern Polytechnical University,Xi’an 710129,China

Received:2012-09-10 Online:2013-08-28 Published:2022-03-15

摘要/Abstract

摘要： 本文研究了密度和厚度对PMI 泡沫塑料及其碳纤维、玻璃纤维夹层结构10GHz 的高频介电性能的影响。结果表明,PMI 泡沫塑料的厚度对其高频介电性能影响不大;随着密度的增加,PMI 泡沫塑料的高频介电性能呈近线性规律增大,并与理论计算值基本一致;随着厚度的增加,其碳纤维夹层结构和玻璃纤维夹层结构的高频介电性能均不断降低,并逐渐接近纯PMI 泡沫塑料的介电性能,其规律符合串联公式模型;玻璃纤维夹层结构的高频介电性能低于碳纤维夹层结构。

关键词: PMI 泡沫塑料, 厚度, 密度, 夹层结构, 高频介电性能

Abstract: The influence of density and thickness of PMI foam on its high-frequency dielectric properties and its sandwich structures with carbon fiber or glass fiber at 10GHz was studied. The results indicate that the thickness of the PMI foam has little effect on the high-frequency dielectric properties. The high-frequency dielectric properties increased linearly with the increase of the foam density,which was consistent with the theoretically calculated values. The high-frequency dielectric properties of sandwich structures gradually thickened with the increase of the foam thickness,which was close to that of PMI foam gradually,and the law conforms to the series formula model. The high-frequency dielectric properties of glass-fiber sandwich structures was less than the carbon-fiber sandwich structures.

Key words: PMI foam plastics, thickness, density, sandwich structures, high-frequency dielectric properties

中图分类号:

张乐, 张广成. PMI 泡沫塑料及其夹层结构的高频介电性能研究[J]. 复合材料科学与工程, 2013, 0(5): 18-21.

ZHANG Le, ZHANG Guang-cheng. THE HIGH-FREQUENCY DIELECTRIC PROPERTIES OF PMI FOAM AND SANDWICH STRUCTURES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(5): 18-21.

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