期刊
PROGRESS IN ORGANIC COATINGS
卷 159, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2021.106400
关键词
Bio-based intumescent flame-retardant system; Flame retardancy; Fire behaviors; Smoke suppression; Antibacterial properties
资金
- National Key Research and Development Program of China [2017YFB0309001]
- National Natural Science Foundation of China [51673153]
Ammonium phytate and chitosan were chosen as eco-friendly flame retardants to enhance the flame retardancy and antibacterial properties of viscose fabrics. The flame-retardant fabrics showed improved thermal stability, increased limiting oxygen index values, and decreased smoke production, along with excellent antimicrobial properties.
Ammonium phytate and chitosan were chosen as eco-friendly flame retardants to improve the flame retardancy and antibacterial properties of viscose fabrics. The flame-retardant viscose fabrics exhibited sharp improvements in thermal stability at the higher temperature zone, and 2BLviscose retained 39.0% char residues at 700 degrees C. 2BL/viscose obtained a limiting oxygen index value of 29% and self-extinguished in the vertical flame test. The fire behaviors of the flame-retardant viscose fabrics were also enhanced; even the addition of CS decreased the total smoke production value from 0.6 to 0.3 m(2). Flame-retardant viscose fabrics released less flammable substances and more H2O, resulting in combustion choking. Meanwhile, the flame-retardant samples formed stable char residues, which were mainly constituted by graphite. Meanwhile, the viscose fabrics coated with CS/AP exhibited excellent antimicrobial properties, and 2BL/viscose obtained a 99.99% antibacterial rate for both Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli).
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