Continuous aramid fiber/unsaturated polyester resin composites with excellent interfacial and mechanical properties

IF 2.3 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Frontiers of Materials Science Pub Date : 2025-06-09 DOI:10.1007/s11706-025-0728-x

Yan Zhang, Yinchun Hu, Kexin Chen, Zhibin Jin, Qi Lei, Yongcun Li, Chuanbo Cong, Qiong Zhou, Yingying Wang

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引用次数: 0

Abstract

The surface microstructure of continuous aramid fibers (AFs) is significant for AF/unsaturated polyester (UP) resin composites. The chemical modification of the AF surface is the key point to enhance mechanical properties of AF/UP composites. In this study, the polyethyleneimine (PEI)-polydopamine (PDA) coating was formed on the continuous AF surface via a one-step process. Morphologies and functional groups of PEI-PDA-coated AFs were studied. It was revealed that the interfacial bonding strength between PEI-PDA-AFs and the UP matrix was increased by 82.47% due to formation of the chemical bonding between amino groups on PEI and hydroxyl groups on UP. The tensile strength of the PEI-PDA-AF/UP composite reached 959.07 MPa, increased by 34.19% compared with that before modification. This study presents a simple and efficient method to prepare high-strength continuous AF/UP composites which could be used in engineering fields of deep-sea pipeline, aerospace, construction, military, safety, sports equipment, etc.

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连续芳纶纤维/不饱和聚酯树脂复合材料具有优异的界面性能和力学性能

连续芳纶纤维（AFs）的表面微观结构对AF/不饱和聚酯（UP）树脂复合材料具有重要意义。对AF/UP表面进行化学改性是提高AF/UP复合材料力学性能的关键。在本研究中，通过一步法在连续AF表面形成聚乙烯亚胺(PEI)-聚多巴胺（PDA）涂层。研究了pei - pda包被的AFs的形态和官能团。结果表明，PEI- pda - afs与UP基体的界面结合强度提高了82.47%，这是由于PEI上的氨基与UP上的羟基之间形成了化学键。PEI-PDA-AF/UP复合材料的抗拉强度达到959.07 MPa，比改性前提高了34.19%。本研究提出了一种简单高效的制备高强度连续AF/UP复合材料的方法，可用于深海管道、航空航天、建筑、军事、安全、体育器材等工程领域。

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来源期刊

Frontiers of Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.20

自引率

3.70%

发文量

515

期刊介绍： Frontiers of Materials Science is a peer-reviewed international journal that publishes high quality reviews/mini-reviews, full-length research papers, and short Communications recording the latest pioneering studies on all aspects of materials science. It aims at providing a forum to promote communication and exchange between scientists in the worldwide materials science community. The subjects are seen from international and interdisciplinary perspectives covering areas including (but not limited to): Biomaterials including biomimetics and biomineralization; Nano materials; Polymers and composites; New metallic materials; Advanced ceramics; Materials modeling and computation; Frontier materials synthesis and characterization; Novel methods for materials manufacturing; Materials performance; Materials applications in energy, information and biotechnology.