In this study, h-BN@PDA@TiO₂ hybrid nanoparticles were prepared and used as functional fillers to prepare PVA nanocomposites, and the effects of hybrid particles on PVA thermal conductivity and flame retardant properties were studied. The results showed that hybrid particles could significantly improve the thermal conductivity and flame retardant performance of PVA composites, and effectively inhibit the release of toxic gases such as combustible pyrolysis products and CO, which enhanced the fire safety of PVA composites. When the addition amount of hybrid particles is 5 wt%, the thermal conductivity of PVA composites is 239.1% higher than that of the pure PVA and the corresponding temperature of PVA composites with a mass loss of 5 wt% was 16.2°C higher than that of the pure PVA. This is due to the barrier effect of h-BN and the protective effect of dense carbon layer catalyzed by TiO₂.

在这项研究中，h-BN @ PDA @ TiO ₂制备了杂化纳米粒子，并作为功能填料制备了PVA纳米复合材料，研究了杂化粒子对PVA导热性和阻燃性能的影响。结果表明，杂化粒子可显着提高PVA复合材料的导热性和阻燃性能，并有效抑制可燃热解产物和CO等有毒气体的释放，从而增强了PVA复合材料的防火性。当杂化颗粒的添加量为5wt％时，PVA复合材料的热导率比纯PVA的热导率高239.1％，并且质量损失为5wt％的PVA复合物的相应温度比其高16.2℃。纯PVA。₂。