Preparation of nylon 6,6 – Ag nanocomposite and characterization of its morphological and antibacterial properties

Subject Areas :

مریم فربودی ¹ , ندا ایاره ²

1 - استادیار گروه شیمی، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران
2 - کارشناس ارشد گروه شیمی، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران

Received: 2017-02-06 Accepted : 2018-01-08 Published : 2018-05-22

Keywords: SEM, silver nanoparticles, Antibacterial, Ultrasonic, 6, EDS, Nylon6,

Abstract :

In this research, silver nanoparticles were deposited on nylon 6,6 fibers with different methods including chemical, ultrasonic, and using colloidal silver solution. Also, the non-fiber nanocomposite of nylon 6,6-silver was prepared by dissolution of nylon 6,6 in formic acid in the presence of silver nanoparticles and extracted by acetone antisolvent. The morphological properties, antibacterial properties, elemental analysis, and wash durability of prepared samples were examined. SEM images and EDS analysis confirmed the presence of silver nanoparticles on nylon 6,6 in prepared samples before and after washing. The antibacterial capability of the samples were determined before and after washing against gram positive bacteria (S.aureus) and gram negative bacteria (E.coli) using resazurin color change. The obtained results confirmed, the sample prepared by ultrasonic method has the most effective antibacterial property before and after washing. According to the results of morphological observation and elemental analysis, it is due to the high amount and uniform deposition of silver on the fiber surface. Also, according to the results, non-fiber nylon6,6-silver nanocomposite has the weakest antibacterial property and other samples have intermediate properties.

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