Design and Characterization of a Novel Aromatic Schiff Base WaterbornePolyurethane with Visible-light Triggered Self-healing Properties forAdvanced Materials Applications

Herein, a novel self-healing waterborne polyurethane-Schiff base (SBWPU) has been developed,demonstrating exceptional mechanical strength, robust mechanical recoverability, and high selfhealingefficiency. In particular, this water-based polymer includes a special healing agent(aromatic Schiff base family) that can be activated through visible light at ambient temperature andprovides significant self-healing properties. The synthesized polymer, known as SBWPU-۱۵,contains ۱۵ wt% of the healing agent and shows self-healable (efficiency ۸۰%) under visible lightafter ۲۴ hours at ambient temperature. This research introduces a new method for creating ecofriendly,durable, secure, easy-triggered self-healing polymer systems with controllable mechanicalfeatures that can be useful in preparing next-generation materials.

کلیدواژه ها:

Self-healing polymer ، Aromatic Schiff base bond ، Waterborne polyurethane