Fang Li , Ruikang Zhai , Wenjing Fan , Chen Liang , Lu Lu , Zihan Li , Shangqin Yuan
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引用次数: 0
摘要
增材制造(AM)技术为生产轻质、高性能和高度定制化的连续纤维增强聚合物(CFRP)复合材料提供了一种新方法。然而,热固性 CFRP 复合材料的 AM 工艺面临着重大挑战,如固化速度慢、原位成型质量差等。本研究提出了一种用于 CFRP 复合材料的光热协同固化方法,用于 AM 制造。通过使用双固化单体/预聚物树脂,实现了热固性 CFRP 复合材料的原位快速浸渍和固化。通过分析工艺-结构-性能映射关系,确定了采用光热协同固化的 CFRP 复合材料的工艺窗口。研究了工艺参数对热固性 CFRP 复合材料机械性能的影响,并揭示了复合材料的失效行为。利用所提出的 AM 工艺证明了热固性 CFRP 复合材料功能结构的可打印性,为复合材料的集成制造提供了技术支持。
Development and evaluation of photothermal synergistic in-situ curing process for carbon fiber reinforced composite materials
Additive manufacturing (AM) technology provides a novel approach to the production of lightweight, high-performance, and highly customizable continuous fiber-reinforced polymer (CFRP) composites. However, the AM process for thermosetting CFRP composites faces significant challenges, such as slow curing speeds and poor in-situ forming quality. In this study, a photothermal synergistic curing method for CFRP composites is proposed for fabrication via AM. The in-situ rapid impregnation and curing of the thermosetting CFRP composites are achieved by employing a dual-curable monomer/prepolymer resin. The process window of the CFRP composites using photothermal synergistic curing is determined by analyzing the process-structure-performance mapping relationship. The influence of process parameters on the mechanical properties of the manufactured thermosetting CFRP composites is investigated, and the failure behaviors of the composites are revealed. The printability of functional structures for thermosetting CFRP composites is demonstrated using the proposed AM process, which provides technical support for the integrated manufacturing of composite materials.
期刊介绍:
Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.