Diethylene triamine penta methylene phosphonic acid encountered silver ions: a convenient method for preparation of flame retardant and antibacterial lyocell fabric

Ammonium salt of diethylene triamine penta methylene phosphonic acid (ADTPMPA), a novel flame retardant, was synthesized and grafted on the lyocell fabric to obtain a kind of flame retardant lyocell fabric (FR-lyocell). Then FR-lyocell was coated by Ag nanoparticles (Ag NPs) to fabricate flame retar...

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Bibliographic Details
Published in:Cellulose (London) 2021-07, Vol.28 (11), p.7465-7481
Main Authors: Xiao, Mengyuan, Guo, Yingbin, Zhang, Jiayue, Liu, Yansong, Ren, Yuanlin, Liu, Xiaohui
Format: Article
Language:English
Subjects:
Bioorganic Chemistry
Ceramics
Chemistry
Chemistry and Materials Science
Composites
Diethylene triamine
E coli
Enthalpy
Flame retardants
Glass
Heat release rate
Methylene
Morphology
Nanoparticles
Natural Materials
Organic Chemistry
Original Research
Phosphonic acids
Physical Chemistry
Polymer Sciences
Silver
Sustainable Development
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Summary:Ammonium salt of diethylene triamine penta methylene phosphonic acid (ADTPMPA), a novel flame retardant, was synthesized and grafted on the lyocell fabric to obtain a kind of flame retardant lyocell fabric (FR-lyocell). Then FR-lyocell was coated by Ag nanoparticles (Ag NPs) to fabricate flame retardant and antibacterial lyocell fabric (FR-Ag-lyocell). The elemental composition, surface morphology, combustion behavior and antibacterial activity of the lyocell fabric before and after modification were investigated. The flame retardant and antibacterial mechanism of FR-Ag-lyocell fabric was also analyzed. The limiting oxygen index (LOI) values of FR-Ag-lyocell fabric before and after 20 laundering cycles (LCs) reached 44.8% and 31.3%, respectively. The treated lyocell fabric possessed lower peak of heat release rate (pHRR) and total heat release (THR) values compared with control lyocell fabric. The FR-Ag-lyocell fabric exhibited excellent antimicrobial ability against Staphylococcus aureus ( S. aureus ) and Escherichia coli ( E. coli ), even after 10 LCs. These results indicated that FR-Ag-lyocell fabric had durable flame retardant and antibacterial properties. Graphic abstract
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-021-04000-8