Preparation and Property Analysis of Antibacterial Fiber Membranes Based on Hyperbranched Polymer Quaternary Ammonium Salts

Due to their excellent properties, antimicrobial fiber membranes are widely applied in bioprotective materials. This work addresses the preparation of thermoplastic polyurethane (TPU)-based fiber membranes with active antimicrobial properties. 2-hydroxypropyl trimethyl ammonium chloride-terminated h...

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Bibliographic Details
Published in:Materials 2024-08, Vol.17 (15), p.3761
Main Authors: Zhu, Jiehui, Guo, Ying, Yao, Lirong, Pan, Gangwei, Zhang, Desuo, Yang, Jianwei
Format: Article
Language:English
Subjects:
Ammonium chloride
Antibacterial agents
Antiinfectives and antibacterials
Bacteria
Composite materials
E coli
Electric potential
Electrospinning
Fourier transforms
Gram-positive bacteria
Hydrostatic pressure
Infection control
Membranes
Moisture resistance
Nanoparticles
NMR
Nuclear magnetic resonance
Polymers
Polyurethane resins
Quaternary ammonium salts
Rotation
Silver
Solvents
Spectrum analysis
Test methods
Urethane thermoplastic elastomers
Viscosity
Voltage
Water filtration
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Summary:Due to their excellent properties, antimicrobial fiber membranes are widely applied in bioprotective materials. This work addresses the preparation of thermoplastic polyurethane (TPU)-based fiber membranes with active antimicrobial properties. 2-hydroxypropyl trimethyl ammonium chloride-terminated hyperbranched polymer (HBP-HTC) was synthesized and used as an antimicrobial agent. The fiber membranes were obtained by electrospinning a mixed solution of HBP-HTC and TPU. Different electrospinning conditions were investigated, such as the spinning voltage and drum rotation speed. The fiber membrane prepared under a 22 kV anode voltage and 100 rpm rotation speed had an average fiber diameter of 1.66 μm with a concentrated diameter distribution. Antibacterial tests showed that when the fiber membrane was loaded with 1500 mg/kg of HBP-HTC, the antibacterial rates of as well as both reached 99.99%, exhibiting excellent proactive antimicrobial performance. Moreover, the protective performance of the fiber membrane was outstanding, with a filtration efficiency of 99.9%, a hydrostatic pressure resistance greater than 16,758 Pa, and a moisture permeability of 2711.0 g⋅(m ⋅d) .
ISSN:1996-1944
1996-1944
DOI:10.3390/ma17153761