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Flame retardant and hydrophobic cotton using a unique phosphorus–nitrogen–silicon-containing coating.
- Source :
- Cellulose; Oct2022, Vol. 29 Issue 15, p8473-8488, 16p
- Publication Year :
- 2022
-
Abstract
- Phosphorus–nitrogen–silicon-containing coatings consisting of tris(hydroxymethyl)phosphine oxide (THPO), 3,5-diamino-1,2,4-triazole (guanazole), and polydimethylsiloxane (PDMS) were prepared via a simple spraying deposition technique and applied to the cotton fabric to impart flame retardancy and hydrophobicity. SEM image reveals that THPO/Guanazole/PDMS-coated fabric has a rough surface and XPS spectra confirm the composition of the coating on the cotton surface. Direct flame testing indicates that the as-prepared coating can protect the cotton from burning. The limiting oxygen index increased from 18.0% for the uncoated fabric to 32.0% for the THPO/Guanazole-treated sample and 27.0% for the THPO/Guanazole/PDMS-treated sample. Furthermore, with additional THPO/Guanazole, there was a gradual reduction in PHRR values, 60% (79.0 kW/m<superscript>2</superscript>) for C2 and 76% (48.2 kW/m<superscript>2</superscript>) for C3 lower than that of untreated cotton. After hydrophobic treatment of C2 with PDMS, the PHRR is reduced to 127.5 kW/m<superscript>2</superscript> (35.5% for C2-PDMS). Additionally, the coated cotton displays impressive hydrophobicity with a water contact angle of 133°. This unique approach provides a facile and effective flame retardant and hydrophobic treatment for cotton fabric. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09690239
- Volume :
- 29
- Issue :
- 15
- Database :
- Complementary Index
- Journal :
- Cellulose
- Publication Type :
- Academic Journal
- Accession number :
- 159003464
- Full Text :
- https://doi.org/10.1007/s10570-022-04772-7