Strong and sustainable chemical bonding of TiO2 on nylon surface using 3-mercaptopropyltrimethoxysilane (3-MPTMS): analysis of antimicrobial and decomposition characteristics of contaminants

  • Gyoyoung Lee
  • Jaewoong Lee
  • Chankyu KangEmail author


In this study, the antimicrobial and photodegradation properties of nylon fabric were improved by chemical treatment using 3-mercaptopropyltrimethoxysilane (3-MPTMS), which binds to photocatalyst TiO2, on a nylon fabric surface. The nylon fibers were impregnated with a solution containing isopropanol, titanium dioxide (TiO2), and 3-MPTMS at optimum ratios, and then stirred for 90 min. To remove the nonreactive impurities, the sample was washed twice with isopropanol and distilled water, and then dried. The TiO2 concentration, agitation temperature, and time were varied to determine suitable coating conditions for attachment to the nylon surface; the resulting properties were confirmed by scanning electron microscopy/energy dispersive spectroscopy. To evaluate the antimicrobial and photodegradation properties of TiO2, antimicrobial tests were conducted using the microbial reduction method and contact angle tests. The fiber contamination rate was measured by computer color matching after the sample was contaminated with methylene blue. Moreover, the antimicrobial activity of Staphylococcus aureus and Escherichia coli strains on the treated nylon was investigated.


Antimicrobial properties Photodegradation properties Nylon fabric 3-MPTMS TiO2 



This work was supported by a Yeungnam University Research Grant, 2018, Republic of Korea.

Compliance with ethical standards

Conflicts of interest

The authors declare that they have no conflict of interest.

Supplementary material

11998_2019_222_MOESM1_ESM.docx (110 kb)
Supplementary material 1 (DOCX 109 kb)


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Copyright information

© American Coatings Association 2019

Authors and Affiliations

  1. 1.Department of Fiber System EngineeringYeungnam UniversityGyeongsanRepublic of Korea
  2. 2.Policy Coordination Office of the Prime Minister, Service for Promoting Safety of People’s LivesSejong CityRepublic of Korea

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