Herein, a green and low-cost approach is established for the designing of polyacrylic acid//Graphene Oxide/Silver (PAA/GO/Ag) nanocomposites, by utilizing sodium alginate as a reducing agent in an aqueous medium via in situ polymerization technique. The outstanding thermal stability, remarkable tensile properties, and distinctive chemical resistance of PAA/GO/Ag nanocomposites are credited to the fabrication of Ag nanoparticles (NPs). The thermal stability of such composites showed its resistance up to 600 °C with a residue of 21%. The oxygenated functional groups absorption intensity for PAA/GO/Ag (at 3635 cm⁻¹) is found to be less than the other precursors proving the attachment of Ag NPs on the GO based polymer matrix. The HRTEM images provide a transparent layer-like structure confirming the presence of GO and dark distorted spherical shapes for Ag NPs with an average diameter of 50–70 nm of the designed composite. The zone of inhibition against Escherichia coli (E. Coli) bacteria determines the antibacterial activities of PAA/GO/Ag nanocomposites with various wt% of Ag NPs. The oxygen barrier behaviour of PAA/GO/Ag nanocomposites is raised by eleven folds with the incorporation of 27 × 10⁻³ wt% of Ag NPs as compared to PAA/GO matrix. Therefore, the reinforcement of Ag NPs enhances the thermal stability, chemical resistance, oxygen barrier, and antimicrobial properties of the PAA/GO matrix, on account of which our synthesized material stands as a beneficial candidate for packaging applications.

在其中，通过在水介质中通过原位聚合技术利用藻酸钠作为还原剂，建立了一种绿色低成本的方法来设计聚丙烯酸//氧化石墨烯/银（PAA / GO / Ag）纳米复合材料。PAA / GO / Ag纳米复合材料出色的热稳定性，出色的拉伸性能和独特的耐化学性被归因于Ag纳米颗粒（NPs）的制造。此类复合材料的热稳定性显示其电阻高达600°C，残留物为21％。PAA / GO / Ag的氧化官能团吸收强度（在3635 cm ^-1时））被发现小于证明Ag NPs附着在GO基聚合物基质上的其他前体。HRTEM图像提供了透明的层状结构，从而确认了设计的复合材料的平均直径为50-70 nm的Ag NP的GO和暗扭曲的球形形状的存在。对大肠杆菌（E. Coli）细菌的抑制区域决定了具有不同重量百分比的Ag NP的PAA / GO / Ag纳米复合材料的抗菌活性。通过掺入27×10 ^-3，PAA / GO / Ag纳米复合材料的阻氧性能提高了11倍与PAA / GO基质相比，Ag NPs的重量百分比。因此，Ag NPs的增强增强了PAA / GO基质的热稳定性，耐化学性，氧气阻隔性和抗菌性能，因此，我们的合成材料可作为包装应用的有益候选者。