A facile strategy for constructing biomimetic continuous fiber reinforced biocomposites with spatial Bouligand structure

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

Composites Communications Pub Date : 2025-03-21 DOI:10.1016/j.coco.2025.102351

Xueni Zhao, Zhipeng Zhu

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引用次数: 0

Abstract

Considering that biomimetic Bouligand structure can simultaneously improve strength and toughness and fiber can guide crack propagation path in fiber reinforced composites, unique 3D (spatial) Bouligand structural composites where crack deflection, twisting, and branching are more likely to occur compared to 2D (planar) ones were constructed by a convenient and reliable preparation method. Compressive strength and flexural strength of biomimetic continuous carbon fiber reinforced hydroxyapatite (CF/HA) composites with spatial Bouligand (SB) structure respectively increase by 85.55 % and 38.42 % compared to those of the composites with a common planar Bouligand (PB) structure. The 3-dimensional stacked Bouligand structure causes further crack deflection and energy dissipation, resulting in a superior mechanical property over PB structure. Compressive strength (190.2 MPa), flexural strength (78.9 MPa), and fracture toughness (24.4 MPa m^1/2) of the SB composites can meet the requirements of weight-bearing bone, which will allow them to be used for ceramic bone plates and bone nails. This study also offer a facile strategy for the construction of advanced ceramics, metal, and polymer based composites with simultaneously improved strength and toughness.

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构建具有空间布利根结构的仿生连续纤维增强生物复合材料的简易策略

考虑到仿生Bouligand结构可以同时提高强度和韧性，纤维可以引导纤维增强复合材料的裂纹扩展路径，通过一种方便可靠的制备方法，构建出独特的三维（空间）Bouligand结构复合材料，与二维（平面）复合材料相比，三维（空间）Bouligand结构复合材料更容易发生裂纹挠曲、扭曲和分支。空间Bouligand （SB）结构仿生连续碳纤维增强羟基磷灰石（CF/HA）复合材料的抗压强度和抗弯强度分别比普通平面Bouligand （PB）结构复合材料提高了85.55%和38.42%。三维叠加的Bouligand结构使裂纹进一步偏转和能量耗散，从而使其力学性能优于PB结构。SB复合材料的抗压强度（190.2 MPa）、抗折强度（78.9 MPa）、断裂韧性（24.4 MPa m1/2）均能满足承重骨的要求，可用于陶瓷骨板和骨钉。该研究还为同时提高强度和韧性的先进陶瓷、金属和聚合物基复合材料的构建提供了一种简便的策略。

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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.