Bioactive polymeric nanocomposites are indispensable materials and have received great attention owing to their diverse applications in human body. In this study, a poly(hydroxyethyl methacrylate) (pHEMA) complex was prepared using hydroxyethyl methacrylate (HEMA) as a base material and trimethylolpropane trimethacrylate (TMPTA) and benzoyl peroxide (BPO) as cross-linking agents. The pHEMA nanocomposites were prepared by melt processing technique. In this process, a twin screw extruder machine was used. Twin screw extrusion is used extensively for mixing, compounding, or reacting polymeric materials. The flexibility of twin screw extrusion equipment allows this operation to be designed specifically for the formulation being processed. The nanocomposites of pHEMA/TiO₂ and pHEMA/TiO₂/GO were synthesized using pHEMA as a matrix with the addition of a small amounts of titanium oxide nanoparticles (TiO₂ 1 wt%) and graphene oxide (GO 0.1 wt%) as reinforcement materials. The thermomechanical study of pHEMA/TiO₂ and pHEMA/TiO₂/GO nanocomposites was carried out via thermogravimetric (TGA), differential scanning calorimetry (DSC), micro-indentation, micro-scratch, and FTIR analyses, and compression testing. The microstructural characterization of the nanocomposites was studied by FESEM and XRD analysis. Significant changes in microstructural behavior with improved thermomechanical properties were observed in pHEMA/TiO₂ and pHEMA/TiO₂/GO nanocomposites as compared to pure pHEMA. In this work, pure pHEMA and pHEMA/TiO₂ and pHEMA/TiO₂/GO nanocomposites were studied for dental applications.

生物活性聚合物纳米复合材料是不可或缺的材料，因其在人体中的多种应用而受到广泛关注。在本研究中，以甲基丙烯酸羟乙酯 (HEMA) 为基材，三羟甲基丙烷三甲基丙烯酸酯( TMPTA) 和过氧化苯甲酰 (BPO) 为交联剂，制备了聚甲基丙烯酸羟乙酯 (pHEMA) 复合物。pHEMA 纳米复合材料是通过熔融加工技术制备的。在这个过程中，使用了双螺杆挤出机。双螺杆挤出广泛用于混合、复合或反应聚合材料。双螺杆挤出设备的灵活性使得该操作可以专门针对正在加工的配方进行设计。pHEMA/TiO ₂和 pHEMA/TiO的纳米复合材料₂ /GO 是使用 pHEMA 作为基质，添加少量氧化钛纳米粒子 (TiO ₂ 1 wt%) 和氧化石墨烯 (GO 0.1 wt%) 作为增强材料合成的。pHEMA/TiO ₂和pHEMA/TiO ₂ /GO纳米复合材料的热力学研究是通过热重（TGA）、差示扫描量热法（DSC）、微压痕、微划痕和FTIR分析以及压缩测试进行的。通过FESEM和XRD分析研究了纳米复合材料的微观结构表征。在 pHEMA/TiO ₂和 pHEMA/TiO ₂中观察到显微结构行为的显着变化和改进的热机械性能/GO 纳米复合材料与纯 pHEMA 相比。在这项工作中，研究了纯 pHEMA 和 pHEMA/TiO ₂以及 pHEMA/TiO ₂ /GO 纳米复合材料的牙科应用。