Abstract
This paper describes a strategy of fabricating silver nanoparticles (Ag NPs) finished cotton fabric through in situ synthesis method. In order to endow the cotton fabric with the capability of in situ synthesis of Ag NPs without any other reagents, an amino-terminated hyperbranched polymer (HBP-NH2) was employed to functionalize the cotton fabric. To this end, cotton fabric was oxidized to generate aldehyde groups and then HBP-NH2 was grafted on the oxidized cotton fabric based on the reaction between amino groups and aldehyde groups. Due to numerous imino and amino groups in the polymer and its special three-dimensional structure, the functional cotton fabric could take initiative to capture and reduce silver ions, control the formation of Ag NPs and fix them on the cotton fabric. The sizes of Ag NPs in situ synthesized on cotton fibers range from 4 to 10 nm. The prepared Ag NPs finished cotton fabric has excellent laundering durability.
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