Preparation of silver nanoparticles with hydrophobic surface and their polyester based nanocomposite fibres with excellent antibacterial properties. (July 2014)

• Record Type: Journal Article
• Authors: Sun, Bin; Hua, Beibei; Ji, Xiaohuan; Shi, Yuyuan; Zhou, Zhe; Wang, Qingmiao; Zhu, Meifang
• Is Part Of: Materials research innovations. Volume 18:Number 4(2014)
• Page Start: 869
• Page End: 874
• Publication Date: 2014-07
• Subjects: Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891714Z.000000000794
• Languages: English
• ISSNs: 1432-8917

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>Silver nanoparticles with hydrophobic surface (HS-nano-Ag) of small size (&lt;10 nm) and capped by 18 wt-% aliphatic acid were specially designed and prepared to improve their dispersibility in and phase compatibility with a polyester matrix. Polyester based nanocomposites with various HS-nano-Ag contents (0·1, 0·5, 1 and even 20 wt-%) were prepared by melt processing, and the effects of HS-nano-Ag additive on the structure and properties of polyester materials were investigated. The HS-nano-Ag had a fine and homogeneous dispersion in the polyester matrix as determined from transmission electron microscopy analysis. The polyester nanocomposites with lower content (≤500 ppm) of Ag had good spinnability, and the stress of the resulting fibres remained higher than 2·5 cN dtex⁻¹ under non-optimised conditions. In addition, the resulting polyester fibres had good antibacterial rate (&gt;96%) against <italic>Staphylococcus aureus</italic> and <italic>Escherichia coli</italic> when containing a low content of HS-nano-Ag (100 ppm).</p> </abstract>