Interfacial reinforced carbon fiber composites inspired by biological interlocking structure

iScience

Wenda Song¹  Dashun Zhang²  Zhiyan Zhang³  Junqiu Zhang³  Zhe Ma⁴  Yufei Wang⁴  Luquan Ren⁴  Zhengzhi Mu⁴  Zhiwu Han⁴  Shuang Zhang⁴  Bo Li⁴  Shichao Niu⁴  Handong Hu⁴  Binjie Zhang⁵  Ze Wang⁶  Yujiao Li⁶  Liewei Huang⁶ 

[1] Corresponding author;School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China;School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China;Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China;No. 55 Research Institute of China North Industries Group Corporation, Changchun 130012, China;X Lab, Second Academy of CASIC, Beijing 100854, China;

关键词: Biomimetics;    Materials science;    Composite materials;    Materials characterization;    Materials structure;   

DOI  :  

来源: DOAJ

【 摘 要 】

Summary: Weak interfacial activity and poor wettability between fiber and matrix are known to be the two main factors that restrict the mechanical properties of carbon fiber-reinforced composites (CFRCs). Herein, inspired by high strength and toughness characteristics of wing feathers of Black Kite (Milvus migrans), natural hook-groove microstructure system (HGMS) and underlying mechanical interlocking mechanism were carefully investigated. Biomimetic HGMS based on dopamine-functionalized carbon fibers and ZnO nanorods were constructed successfully by a two-step modification method to enhance interfacial adhesion. Further, CFRCs featured with biomimetic HGMS were prepared by a vacuum-assisted contact molding method. Experimental results confirmed that flexural strength and interlaminar shear strength of the bioinspired CFRCs were effectively improved by 40.02 and 101.63%, respectively. The proposed bioinspired design strategy was proved to be flexible and effective and it was anticipated to provide a promising design approach and facile fabrication method for desirable CFRCs with excellent mechanical properties.

【 授权许可】

Unknown