Work

Polydopamine based interfacial adhesion enhancement of Ti/CF/PEEK hybrid laminates

Year: 2025

Type: article

Abstract: The limited metal-polymer interlaminar property is a significant obstacle to the advancement of Ti/Carbon Fiber (CF)/Polyether Ether Ketone (PEEK) hybrid laminates. We report for the first time a novel method by utilizing the mussel-inspired Polydopamine (PDA) to introduce a strong chemical-physical bonding between titanium and PEEK. The enhanced Fiber-Metal Laminate (FML) exhibits a significant 48.82% enhancement in Interlaminar Shear Strength (ILSS). In addition, it alters the failure mode of the FML from single metal-resin interlaminar delamination to a multi-mechanism, including debonding, delamination of different composite layers, leading to a 28.57% improvement in maximum displacement.

Source: Chinese Journal of Aeronautics

DOI: 10.1016/j.cja.2025.103632

Authors: Ding YUAN, Yong LI, Zhihui JIAO, Dongdong YAN, Yubo HU, Dongsheng LI

Institution: Beihang University

Language: English

Topic: Mechanical Behavior of Composites

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,000

Funder: Fundamental Research Funds for the Central Universities