Immobilization of Air-Stable Copper Nanoparticles on Graphene Oxide Flexible Hybrid Films for Smart Clothes
Journal
Polymers
Journal Volume
14
Journal Issue
2
Date Issued
2022
Author(s)
Abstract
Through the use of organic/inorganic hybrid dispersants—which are composed of polymeric dispersant and two-dimension nanomaterial graphene oxide (GO)—copper nanoparticles (CuNPs) were found to exhibit nano stability, air-stable characteristics, as well as long-term conductive stability. The polymeric dispersant consists of branched poly(oxyethylene)-segmented esters of trimellitic anhydride adduct (polyethylene glycol?trimethylolpropane?trimellitic anhydride, designated as PTT). PTT acts as a stabilizer for CuNPs, which are synthesized via in situ polymerization and redox reaction of the precursor Cu(CH3COO)2 within an aqueous system, and use graphene oxide to avoid the reduction reaction of CuNPs. The results show that after 30 days of storage the CuNPs/PTT/GO composite film maintains a highly conductive network (9.06 × 10?1 Ω/sq). These results indicate that organic/inorganic PTT/GO hybrid dispersants can effectively maintain the conductivity stability of CuNPs and address the problem of CuNP oxidation. Finally, the new CuNPs/PTT/GO composite film was applied to the electrocardiogram (ECG) smart clothes. This way, a stable and antioxidant-sensing electrode can be produced, which is expected to serve as a long-term ECG monitoring device. ? 2022 by the authors. Licensee MDPI, Basel, Switzerland.
Subjects
Copper nanoparticles
Electrical conductivity
Electrocardiogram
Graphene oxide
Nanohybrids
Polymeric dispersant
Smart clothes
Copper compounds
Electrocardiography
Nanocomposite films
Nanostructured materials
Oxide films
Polyethylene oxides
Polyethylenes
Redox reactions
Air stable
Dispersants
Graphene oxides
Hybrid film
Immobilisation
Polymeric dispersants
Metal nanoparticles
Type
journal article