Work

Effect of thermal aging on responsive polymer coatings used for temperature monitoring in e-vehicles

Year: 2025

Type: article

Abstract: Herein, the impact of aging on polyurethane-based coatings containing either 1,1′-azobis(cyclohexanecarbonitrile) (ABCN) or 2,2′-azobis(isobutyronitrile) (AIBN) as thermo-responsive additives is comprehensively studied. Inspired by previous research that demonstrated the ability of these thermo-sensitive polymers to release tracer gases at critical temperatures as an earlier failure detection system, this work focuses on their thermal stability over time. The research evaluates how aging affects the coatings’ gas-release functionality at specific temperature thresholds, highlighting that the long-term stability of the coatings is significantly influenced by the choice of additive, with ABCN demonstrating better retention of its functionality under aging conditions. These findings offer valuable insight into the long-term performance and reliability of thermo-responsive coatings in safety applications. Graphical abstract

Source: Monatshefte für Chemie - Chemical Monthly

DOI: 10.1007/s00706-025-03403-8

Authors: Daniel Bautista-Anguís, Archim Wolfberger, Gabriel Ferdigg, Lauritz Seifert, Sandra Schlögl

Institutions: Montanuniversität Leoben, Polymer Competence Center Leoben (Austria), Virtual Vehicle Research GmbH (Austria)

Language: English

Topic: Polymer composites and self-healing

Subfield: Polymers and Plastics

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,890

Funder: Österreichische Forschungsförderungsgesellschaft