Development of Innovative Composite Nanofiber: Enhancing Polyamide-6 with E-Poly-L-Lysine for Medical and Protective Textiles

Details

• Personal Author:
  Li R ; Purandare S ; Song G ; Xiang C
• Description:
  Polyamide-6 (PA) is a popular textile polymer having desirable mechanical and thermal properties, chemical stability, and biocompatibility. However, PA nanofibers are prone to bacterial growth and user discomfort. e-Poly-L-lysine (PL) is non-toxic, antimicrobial, and hydrophilic but lacks spinnability due to its low molecular weight. Given its similar backbone structure to PA, with an additional amino side chain, PL was integrated with PA to develop multifunctional nanofibers. This study explores a simple, scalable method by which to obtain PL nanofibers by utilizing the structurally similar PA as the base. The goal was to enhance the functionality of PA by addressing its drawbacks. The study demonstrates spinnability of varying concentrations of PL with base PA while exploring compositions with higher PL concentrations than previously reported. Electrospinning parameters were studied to optimize the nanofiber properties. The effects of PL addition on morphology, hydrophilicity, thermal stability, mechanical performance, and long-term antimicrobial activity of nanofibers were evaluated. The maximum spinnable concentration of PL in PA-based nanofibers resulted in super hydrophilicity (0 degree static water contact angle within 10 s), increased tensile strength (1.02 MPa from 0.36 MPa of control), and efficient antimicrobial properties with long-term stability. These enhanced characteristics hold promise for the composite nanofiber's application in medical and protective textiles. [Description provided by NIOSH]
• Subjects:
  Occupational Health Personal Protective Equipment Polymers Protective Clothing Safety Textile Industry
• Keywords:
  Antimicrobials Author Keywords: Antimicrobial Textiles E-poly-l-lysine Hydrophilic Nanocomposites Nanofiber Nanofibers Polyamide Protective Clothing Textiles
• ISSN:
  2073-4360
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Iowa ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  16
• Issue:
  14
• NIOSHTIC Number:
  nn:20069940
• Citation:
  Polymers 2024 Jul; 16(14):2046
• Contact Point Address:
  Chunhui Xiang, Department of Apparel, Events, and Hospitality Management, Iowa State University of Science and Technology, Ames, IA 50011
• Email:
  chxiang@iastate.edu
• Federal Fiscal Year:
  2024
• Performing Organization:
  Iowa State University
• Peer Reviewed:
  True
• Start Date:
  20210930
• Source Full Name:
  Polymers
• End Date:
  20250929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c7c735377069cb4dfe0f1a3f288dd88cc7b707196baa3b91292cbce3a7e148cd38dd7af1865468b43c83090ef10ab5b86cf08457e9afeabb088bee306cccdbf9
• Download URL:
  https://stacks.cdc.gov/view/cdc/208259/cdc_208259_DS1.pdf
• File Type:
  [PDF - 3.66 MB ]