Based on electrochemical exfoliation route, a simplified one-pot approach was put forward to obtain hydroxyapatite-functionalized graphene (GNS@HAP), as a multifunctional nanomaterial. The disappearance of characteristic peaks in XRD results and the microstructure morphology observed by electron microscope observation directly confirmed the successful exfoliation and functionalization of graphene in one pot process. Compared with pure graphene which has few functional groups, GNS@HAP can strongly interact with polymer chains by introducing uniformly-dispersed rod-like hydroxyapatite. Moreover, GNS@HAP presents more significant enhancement effects in flame retardancy, toxic gas suppression and mechanical property of thermoplastic polyurethane (TPU) nanocomposites. The peak values of heat release rate and total heat release of TPU-GNS@HAP-2.0 were decreased by 24.4% and 19.8%, respectively. The simplified one-pot electrochemical route offers an environmentally friendly and commercially available method to develop the application of graphene in fabricating polymer nanocomposites.

基于电化学剥离路线，提出了一种简化的一锅法来获得羟基磷灰石功能化石墨烯（GNS@HAP），作为一种多功能纳米材料。XRD结果中特征峰的消失和电镜观察观察到的微观结构形态直接证实了石墨烯在一锅法中的成功剥离和功能化。与官能团较少的纯石墨烯相比，GNS@HAP 可以通过引入均匀分散的棒状羟基磷灰石与聚合物链发生强烈的相互作用。此外，GNS@HAP在热塑性聚氨酯（TPU）纳米复合材料的阻燃性、有毒气体抑制和力学性能方面表现出更显着的增强作用。TPU-GNS@HAP-2的放热率和总放热峰值。0 分别下降了 24.4% 和 19.8%。简化的一锅电化学路线为开发石墨烯在制备聚合物纳米复合材料中的应用提供了一种环境友好且可商用的方法。