Interfacial crystallization behavior and properties of T1100-grade carbon fiber reinforced PEEK composites

IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2024-10-28 DOI:10.1016/j.coco.2024.102133

引用次数: 0

Abstract

As a semi-crystalline resin, the crystallization behavior of Polyether ether ketone at the interface between carbon fiber and resin matrix profoundly affects the interfacial properties of carbon fiber reinforced PEEK composite. Therefore, the research on the interfacial crystallization behavior of CF/PEEK composite is of great significance. Aiming at Chinese-made T1100-grade carbon fiber and PEEK resin matrix, the effects of cooling rate and sizing agent on the interfacial crystallization behavior of T1100-grade carbon fiber/PEEK were studied by POM and DSC, and the IFSS was tested by microdebond. The experimental results show that the increase of the cooling rate and the removal of the sizing agent can improve the nucleation ability of PEEK and promote the interfacial crystallization of PEEK. PEEK starts to form transcrystallization, when the nucleus density is increased to about 0.07/μm. The interfacial crystallization behavior has an effect on the interfacial properties. The IFSS increases with increasing cooling rate and removal of sizing agent.

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T1100 级碳纤维增强 PEEK 复合材料的界面结晶行为和性能

作为一种半结晶树脂，聚醚醚酮在碳纤维与树脂基体界面上的结晶行为深刻影响着碳纤维增强 PEEK 复合材料的界面性能。因此，研究 CF/PEEK 复合材料的界面结晶行为具有重要意义。针对国产 T1100 级碳纤维和 PEEK 树脂基体，利用 POM 和 DSC 研究了冷却速率和施胶剂对 T1100 级碳纤维/PEEK 复合材料界面结晶行为的影响，并利用微脱粘测试了 IFSS。实验结果表明，提高冷却速率和去除施胶剂可以提高 PEEK 的成核能力，促进 PEEK 的界面结晶。当晶核密度增加到约 0.07/μm 时，PEEK 开始形成跨晶。界面结晶行为对界面特性有影响。随着冷却速度的增加和施胶剂的去除，IFSS 会增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

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.