Tailoring Heat Transfer and Bactericidal Response in Multifunctional Cotton Composites

Area of Science:

• Materials Science and Engineering
• Nanotechnology
• Textile Chemistry

Background:

• Smart materials are crucial for future technologies, requiring efficient synthesis of functional components.
• Silver nanoparticles (AgNPs) offer promising thermal and antimicrobial properties for advanced textiles.
• Controlling AgNP synthesis on fabrics is key to achieving desired functionalities.

Purpose of the Study:

• To investigate the impact of synthesis parameters on the properties of silver nanoparticle-coated cotton fabric (AgNPs@cotton).
• To correlate synthesis conditions with thermal and bactericidal performance.
• To establish relationships between nanoparticle characteristics and fabric functionality for practical applications.

Main Methods:

• Systematic variation of reaction time, temperature, and surface stabilizer concentration during AgNP synthesis on cotton.
• Characterization of AgNP coating quality, size, shape, and agglomeration.
• Evaluation of thermal properties (heat transfer) and bactericidal efficacy against reference and environmental bacteria.

Main Results:

• Synthesis parameters significantly influence AgNP size, shape, and distribution on cotton fibers.
• Optimized AgNPs@cotton demonstrated enhanced thermal insulation and potent bactericidal activity.
• Polyvinylpyrrolidone (PVP) acted as an effective surface modifier, contributing to thermal barrier properties.

Conclusions:

• The study provides a framework for tailoring AgNPs@cotton properties through controlled synthesis.
• The developed AgNPs@cotton exhibits potential for smart packaging, clothing, and medical dressing applications.
• This research enables the design of application-specific smart fabrics with tunable thermal and antimicrobial functions.