Characterization and Development of a New Method for Determination Charge Density of 3-(Trimethoxysilyl)-propyldimethyloctadecyl Ammonium Chloride Coatings on Polyester Surfaces. Issue 3 (May 2014)

• Record Type: Journal Article
• Authors: Avci, H.; Monticello, R.; Kotek, R.
• Is Part Of: AATCC Journal of Research. Volume 1:Issue 3(2014)
• Page Start: 1
• Page End: 10
• Publication Date: 2014-05
• Subjects: 3-(trimethoxysilyl)-propyldimethyloctadecyl Ammonium Chloride -- Antimicrobials -- Charge Density -- Efficiency -- Polyester
• DOI: 10.14504/ajr.1.3.1
• Languages: English
• ISSNs: 2472-3444

Abstract

Medical science benefits from models that predict antimicrobial activity, as well as the mechanism of antimicrobial agent activity effective in treatment of infectious diseases. A new method to determine the charge density of quaternary nitrogen in 3-(trimethoxysilyl)-propyldimethyloctadecyl ammonium chloride on the surface of polyester (PET) fabric was developed using C.I. Direct Red 47. The properties K/S (color strength), charge density, antibacterial efficiency, hydrophilicity, and surface potentials were examined. The experimental charge density value of 1.33 x 10 16 units/cm 2 was close to the calculated value of 1.35 x 10 16 units/cm 2 for 0.05% load quat-silane assumed by the amount of quat applied. In addition, correlation between K/S values and charge density had a linear correlation coefficient close to unity.