Polymer matrix composites have become indispensable materials across numerous industries due to their tunable mechanical, thermal, and electrical properties. Polyvinyl alcohol (PVA), a water-soluble and biocompatible synthetic polymer, is a versatile matrix material for composite development. The incorporation of carbon-based fillers has long been a strategy to enhance polymer properties, ranging from mechanical reinforcement to electrical conductivity [1]. Recent advances in nanotechnology have introduced novel carbon allotropes, such as carbon nanoparticles, including carbon quantum dots (CQDs) [2, 3], carbon nanodots (CNDs) [4], and graphene quantum dots (GQDs) [5]. These nanoparticles exhibit unique size-dependent optical and electronic properties [2, 3, 4, 5, 6] that differ significantly from traditional carbon fillers like graphite [1]. Laser ablation in liquids (LAL) is a promising method for synthesizing such nanoparticles, producing them directly in a liquid medium suitable for composite fabrication. This article reviews the relevant aspects of PVA as a matrix, the characteristics of advanced carbon nanoparticle fillers based on cited literature [2, 3, 4, 5, 6], considers fabrication methods like LAL for producing such fillers, and discusses the potential properties and applications of resulting PVA-carbon nanoparticle composites, drawing parallels and distinctions with other carbon-filled systems [1].

Polyvinyl Alcohol (PVA), Carbon Nanoparticles, Laser Ablation in Liquids (LAL), Polymer Composites, Nanocomposites

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