Adhesion Engineering in Polymer-Metal Comolded Joints with Biomimetic Polydopamine.

ABSTRACT: Joints that connect thermoplastic polymer matrices (TPMs) and metals, which are obtained by comolding, are of growing importance in numerous applications. The overall performance of these constructs is strongly impacted by the TPM-metal interfacial strength, which can be tuned by tailoring the surface chemistry of the metal prior to the comolding process. In the present work, a model TPM-metal system consisting of poly(methyl methacrylate) (PMMA) and titanium is used to prepare comolded joints. The interfacial adhesion is quantified by wire pullout experiments. Pullout tests prior to and following surface modification are performed and analyzed. Unmodified wires show poor interfacial strength, with a work of adhesion (G_a) value of 3.8 J m^-2. To enhance interfac

SUBMITTER: Kafkopoulos G 

PROVIDER: S-EPMC8153540 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature