Fabrication of functional hybrid carbon fiber-reinforced plastics with imparted surface concentrated electrical conductivity via multi-drop filling

IF 2.2 4区 工程技术 Q2 MECHANICS Korea-Australia Rheology Journal Pub Date : 2024-06-04 DOI:10.1007/s13367-024-00094-1
Seung In Kang, Min Gyoung Kim, Dong Gi Seong
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Abstract

Carbon fiber-reinforced plastics (CFRPs) have attracted attention as lightweight materials with exceptional properties, making them suitable for applications in industries where enhanced fuel efficiency and vibration-damping effects are required. However, as CFRP applications expand beyond the mobility sector, the demand for additional functionalities, particularly electrical conductivity, has emerged. In this study, we employed a multi-drop filling process (MDF) to produce hybrid CFRP with imparted electrical conductivity. This approach enables precise resin drop and simultaneous curing, addressing the challenges associated with conventional CFRP production processes. Based on filtering effects during MDF, additives, such as carbon nanotubes (CNTs) and graphene, could concentrate on the surface while resin impregnated the fiber reinforcement, resulting in CFRP with surface-concentrated electrical conductivity (ScEC). We dispersed CNTs and graphene in the resin to induce a bridge effect between the additives. Resin dispersion was achieved using surfactants and solvents, preserving the enhanced electrical conductivity and mechanical properties of the CFRP. The structure, electrical conductivity, and mechanical properties of the fabricated CFRP were evaluated. The results show that the hybrid CFRPs possess the intended structure and exhibit ScEC. This study paves the way for the fabrication of CFRPs with different functionalities, thereby promoting their applications in various industries.

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通过多滴填充制造具有表面集中导电性的功能性混合碳纤维增强塑料
碳纤维增强塑料(CFRP)作为具有优异性能的轻质材料备受关注,适合应用于需要提高燃油效率和减震效果的行业。然而,随着 CFRP 的应用扩展到移动领域以外,对其附加功能(尤其是导电性)的需求也随之出现。在这项研究中,我们采用了多滴填充工艺(MDF)来生产具有导电性的混合 CFRP。这种方法可实现精确的树脂滴落和同步固化,解决了传统 CFRP 生产工艺所面临的挑战。基于 MDF 过程中的过滤效应,碳纳米管(CNT)和石墨烯等添加剂可在树脂浸渍纤维增强体的同时集中在表面,从而产生具有表面集中导电性(ScEC)的 CFRP。我们将 CNT 和石墨烯分散在树脂中,以诱导添加剂之间的桥接效应。我们使用表面活性剂和溶剂实现了树脂分散,从而保持了 CFRP 的增强导电性和机械性能。对所制造的 CFRP 的结构、导电性和机械性能进行了评估。结果表明,混合 CFRP 具有预期的结构,并表现出 ScEC 性能。这项研究为制造具有不同功能的 CFRP 铺平了道路,从而促进了它们在各行各业的应用。
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来源期刊
Korea-Australia Rheology Journal
Korea-Australia Rheology Journal 工程技术-高分子科学
CiteScore
2.80
自引率
0.00%
发文量
28
审稿时长
>12 weeks
期刊介绍: The Korea-Australia Rheology Journal is devoted to fundamental and applied research with immediate or potential value in rheology, covering the science of the deformation and flow of materials. Emphases are placed on experimental and numerical advances in the areas of complex fluids. The journal offers insight into characterization and understanding of technologically important materials with a wide range of practical applications.
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