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Investigating the Effects of PU-Based Back-Coating with Boric Acid and Titanium Dioxide Additives on Flame Retardancy Levels and Comfort Properties of 100% Cotton Denim Fabric

Ebru Öztürkmen

Ebru Öztürkmen

Gaziantep University, Graduate School of Natural & Applied Sciences, Textile Engineering Department, Üniversite BulvarıGaziantep, Turkey
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Öztürkmen, Ebru
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Cem Güneşoğlu

Cem Güneşoğlu

Gaziantep University, Graduate School of Natural & Applied Sciences, Textile Engineering Department, Üniversite BulvarıGaziantep, Turkey
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Güneşoğlu, Cem
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Mehmet Topalbekiroğlu

Mehmet Topalbekiroğlu

Gaziantep University, Graduate School of Natural & Applied Sciences, Textile Engineering Department, Üniversite BulvarıGaziantep, Turkey
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Topalbekiroğlu, Mehmet
  
08 oct 2024
Investigating the Effects of PU-Based Back-Coating with Boric Acid and Titanium Dioxide Additives on Flame Retardancy Levels and Comfort Properties of 100% Cotton Denim Fabric's Cover Image
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Categoría del artículo: Research Article
Publicado en línea: 08 oct 2024
Páginas: 13 - 21
DOI: https://doi.org/10.2478/ftee-2024-0027
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© 2024 Ebru Öztürkmen et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1.

Schematic illustration of back-coating application of cotton denim fabrics
Schematic illustration of back-coating application of cotton denim fabrics

Fig. 2.

Air permeability of cotton denim fabric before and after back-coating application
Air permeability of cotton denim fabric before and after back-coating application

Fig. 3.

Water vapor permeability of cotton denim fabric before and after back-coating application
Water vapor permeability of cotton denim fabric before and after back-coating application

Fig. 4.

Thermal conductivity and thermal resistance of cotton denim fabric before and after coating with B/PU and BT/PU
Thermal conductivity and thermal resistance of cotton denim fabric before and after coating with B/PU and BT/PU

Fig. 5.

Thermal absorptivity and thickness of cotton denim fabrics before and after coating with B/PU and BT/PU
Thermal absorptivity and thickness of cotton denim fabrics before and after coating with B/PU and BT/PU

Fig. 6.

Images of uncoated and B/PU-BT/PU coated cotton denim fabrics following the vertical flame test
Images of uncoated and B/PU-BT/PU coated cotton denim fabrics following the vertical flame test

Technical specifications of denim fabrics

Composition Weave Mass per unit area (g/m2) Weft density (picks/cm) Warp density (picks/cm)
Denim fabric sample 100% CO 3/1 Z 340 22 28

Different concentrations of TiO2 and H3BO3 in back-coating pastes

Code Fabric specimen H3BO3 solution* (wt%) TiO2 solution** (wt%) PU based binder (wt%) Thickener solution*** (wt%) Crosslinker agent (wt%)
UDF Untreated cotton denim fabric - - - - -
B/PU Cotton denim fabric coated with H3BO3 containing back-coating paste 7.5 - 15 2.2 3
BT/PU Cotton denim fabric coated with H3BO3 and TiO2 containing back-coating paste 7.5 5 16 2.2 3

Vertical flame results and limited oxygen index (LOI) values

Sample Vertical flame test results Limited oxygen index
After-flame time (s) Char length (mm) LOI (%)
Time (s) σ* Length (mm) σ*
UDF 60 2.4 200 8.5 21.3
B/PU 45 3.0 75 4.1 25.1
BT/PU 30 2.3 45 3.5 27.0
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Volume Open
Temas de la revista:
Negocios y Economía, Gestión empresarial, Informática de negocios, Gestión de proceso, Química Industrial, Celulosa, papel y textiles, Ciencia y tecnología de polímeros, Ciencia de los materiales, Biomateriales y materiales naturales
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