Nanostructures in Self-Healing Composites: Analyzing the Influence of Particle Size on Restorative Properties

The object of research is the influence of particle size on the therapeutic properties of self-healing composites. This work aims to comprehensively analyze particle size's influence on the self-healing properties of nanostructures embedded in composites. The study evaluates the effectiveness of various self-healing mechanisms across diverse materials and applications, aiming to understand their implications for improving self-healing composites. Method. This research utilizes a critical and comparative approach to scrutinize the technical aspects of self-healing mechanisms within nanostructured composites. The analysis includes examining microcapsule-based systems, bioinspired approaches, and intrinsic healing through shape-memory polymers. The strengths and limitations of each method are critically assessed, considering their applicability to different material types and construction scenarios. Additionally, the research discusses the potential of nanotechnology to augment self-healing capabilities and introduce novel functionalities. Results. The findings reveal the intricate interplay between particle size within nanostructures and their restorative properties in self-healing composites. The diverse mechanisms showcased the promise of prolonged structural longevity, decreased maintenance requirements, and heightened sustainability. However, the study identifies challenges in optimizing healing efficiencies, overcoming cost barriers, and ensuring the enduring durability of materials.