一种高偏压过渡碳纤维复合材料真空镀膜的方法

By employing HiPIMS and multi-arc ion plating technology on the surface of carbon fiber resin matrix composites, a high-bias transition carbon fiber composite vacuum coating method was developed, which solved the problems of resin breakdown and carbon fiber etching, achieved effective bonding between the coating and the substrate, and improved electromagnetic shielding performance and microhardness.

CN120575144BActive Publication Date: 2026-07-17HEILONGJIANG INST OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEILONGJIANG INST OF TECH
Filing Date
2025-06-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the current process of vacuum coating on carbon fiber resin matrix composites, high bias voltage over-deposition leads to high-voltage breakdown of the resin and carbon fiber etching damage, affecting the bonding strength and electromagnetic shielding performance of the coating.

Method used

A high-bias transition carbon fiber composite vacuum coating method is adopted, which utilizes HiPIMS and multi-arc ion plating technology. By performing bias self-glow plasma cleaning and depositing conductive metal coating on the electrical insulator, the coating and substrate are effectively bonded, avoiding resin electrical breakdown and carbon fiber etching.

Benefits of technology

It improves the bonding strength between the coating and the substrate and the electromagnetic shielding performance, enhances the electromagnetic wave absorption and multiple emission absorption effects of the material, and improves the electromagnetic shielding performance and microhardness.

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Abstract

一种高偏压过渡碳纤维复合材料真空镀膜的方法,它涉及碳纤维复合材料的真空镀膜技术。本发明的目的是要解决现有碳纤维树脂基复合材料表面真空镀膜的高偏压过渡沉积时导致树脂的高压击穿和碳纤维刻蚀损伤的问题。方法:一、将碳纤维复合材料固定到电绝缘体上;二、偏压自辉光等离子体清洗;三、沉积过渡层;四、沉积工作涂层。本发明基于“电绝缘体”的初始不导电方式,等离子体预处理时,有效解决了不导电树脂发生电击穿、导电且低抗溅射的碳纤维刻蚀损伤的问题,实现了非均质导电、低抗溅射的材料表面偏压自辉光等离子体清洗;本发明采用HiPIMS沉积致密结构铝、铜涂层,提高了电磁波吸收和多重发射吸收效应,增强了材料整体电磁屏蔽性能。
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