The aim of this paper was to blend the polymers, poly(N-vinyl-2-pyrrolidone) (PVP) and poly(vinyl alcohol) (PVA) to produce a novel composite materials possessing the benefits of both. CuO nanoparticles (NPs) were used as a suitable filler to fabricate the blend nanocomposites (NCs) with desired properties. First, the surface of NPs, was modified with vitamin B₁ (VB₁) as a bio-safe coupling agent. Then, the blend NCs with various ratios of modified CuO (3, 5, and 7 wt%) were fabricated under ultrasonic irradiations followed by casting/solvent evaporation method. These processes are fast and green way to disperse the NPs sufficiently. Several techniques were applied for the characterization of the obtained NCs. morphology examination demonstrated the morphology of NCs and compatibility of NPs with the blend polymer. EDX results indicated the weight and atomic percentage of the achieved materials. TGA analysis verified that the NCs show higher thermal properties than the neat blend polymer. Also embedding the modified NPs into the blend polymer had effected on optical absorbance of the obtained NCs. The contact angle measurements confirmed that the hydrophilicity decreased for different proportions of the modified NPs loaded in the blend polymer. Finally, NCs show better bactericidal effects against gram-positive than gram-negative bacteria.

本文的目的是共混聚合物，聚（N-乙烯基-2-吡咯烷酮）（PVP）和聚（乙烯醇）（PVA），以生产一种兼具两者优势的新型复合材料。将CuO纳米颗粒（NPs）用作合适的填料，以制造具有所需性能的共混纳米复合材料（NCs）。首先，用维生素B ₁（VB ₁）作为生物安全偶联剂。然后，在超声辐射下，接着通过流延/溶剂蒸发法，制备了具有各种比例的改性CuO（3、5和7 wt％）的共混NCs。这些过程是快速且绿色的方法，可以充分分散NP。应用了几种技术来表征获得的NC。形态学检查证明了NC的形态和NP与共混聚合物的相容性。EDX结果表明所获得材料的重量和原子百分数。TGA分析证实，NCs比纯共混聚合物显示出更高的热性能。同样将改性的NP嵌入到共混聚合物中也影响了所得NC的吸光度。接触角测量证实，对于掺入共混聚合物中的不同比例的改性NP，亲水性降低。最后，与革兰氏阴性菌相比，NCs对革兰氏阳性菌显示出更好的杀菌效果。