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Home > Archives > Volume 20, No 8 (2022) > Article

DOI: 10.14704/nq.2022.20.8.NQ44461

Preparation and characterization of Poly vinyl Alcohol blend solutions with natural extract oils and walnut bark aqueous solution for antibacterial application

Mohammed Rusul A. , JawadHanaa K., Ali A. Al-zubiady

Abstract

In this study, it was examined what would happen if one volume of a mixture of polyvinyl alcohol (PVA), starch (STA), and cress seed gum (CSM) was added together with an aqueous solution of walnut bark at various weight percentages (0.3, 0.5, and 0.7 percent wt). (30STA, 30CSM, 40PVA) via electrospinning. Tests on the viscosity, electrical conductivity, and surface tension of the solution were conducted to determine its impact on the fiber diameter. The pumping parameters were set to the following values: (20 kV applied voltage, 20 cm pumping distance, 0.4 mm needle diameter, 600 rpm target rotation speed, and 1 ml/hour pumping rate). A scanning electron microscope was used to look at the tissue and determine the structure and shape of the produced nanofibers. Tests on the tissue included the FTIR infrared test to determine the bonding between the mixture and the addition. Results showed that adding aqueous solutions of walnut bark with concentrations of 3 percent and 5 percent resulted in a decrease in the diameter of the fibers and the smoothness of their surface, while adding a concentration of 7 percent resulted in an increase in the diameter of the fiber and a rise in the contact angle. According to the findings of the bacterial inhibition assay, it was demonstrated that the concentration of the aqueous solution containing the powdered walnut bark increased the ability to inhibit bacteria

Keywords

walnut bark , blend solutions, antibacterial , PVA

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