Citric acid based durable and sustainable flame retardant treatment for lyocell fabric

Naveed Mengal, Uzma Syed, Samander Ali Malik, Iftikhar Ali Sahito, Sung Hoon Jeong

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Pyrovatex CP New, is a commonly used organophosphorus based flame retardant (FR) reagent for cellulosic materials. However, it has a drawback of high formaldehyde release when used with methylated melamine (MM) based cross-linker, a known carcinogenous compound. In the present approach, a durable and sustainable flame retarding recipe formulation for lyocell fabrics is developed using citric acid (CA) as a cross-linker. The FR finish was applied by pad-dry-cure process. The treated fabrics were characterized for surface morphology, elemental analysis, TG analysis, char study and FT-IR spectroscopy. Furthermore, flame retardancy, washing durability, formaldehyde release and breaking strength were also assessed, and compared with the conventional MM based FR recipe. The fabric samples treated with 400 g L−1 of FR with either 40 or 80 g L−1 of CA demonstrate flame retardancy even after 10 washing cycles. Furthermore, a 75% reduction in formaldehyde release is achieved. Higher char yield and lower decomposition temperature are found compared to untreated and FR+ MM treated lyocell. Such an improved sustainable recipe formulation can be used for lyocell fabric without any health risk in apparel wear.

Original languageEnglish
Pages (from-to)78-88
Number of pages11
JournalCarbohydrate Polymers
Volume153
DOIs
StatePublished - 2016 Nov 20

Fingerprint

Flame Retardants
Citric acid
Flame retardants
Citric Acid
Melamine
Formaldehyde
Washing
Health risks
Surface morphology
Infrared spectroscopy
Durability
Wear of materials
Decomposition
Chemical analysis
melamine

Keywords

  • Citric acid
  • Cross-linker
  • Easy care finishes
  • Flame retardant
  • Lyocell
  • Sustainable

Cite this

Mengal, Naveed ; Syed, Uzma ; Malik, Samander Ali ; Ali Sahito, Iftikhar ; Jeong, Sung Hoon. / Citric acid based durable and sustainable flame retardant treatment for lyocell fabric. In: Carbohydrate Polymers. 2016 ; Vol. 153. pp. 78-88.
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abstract = "Pyrovatex CP New, is a commonly used organophosphorus based flame retardant (FR) reagent for cellulosic materials. However, it has a drawback of high formaldehyde release when used with methylated melamine (MM) based cross-linker, a known carcinogenous compound. In the present approach, a durable and sustainable flame retarding recipe formulation for lyocell fabrics is developed using citric acid (CA) as a cross-linker. The FR finish was applied by pad-dry-cure process. The treated fabrics were characterized for surface morphology, elemental analysis, TG analysis, char study and FT-IR spectroscopy. Furthermore, flame retardancy, washing durability, formaldehyde release and breaking strength were also assessed, and compared with the conventional MM based FR recipe. The fabric samples treated with 400 g L−1 of FR with either 40 or 80 g L−1 of CA demonstrate flame retardancy even after 10 washing cycles. Furthermore, a 75{\%} reduction in formaldehyde release is achieved. Higher char yield and lower decomposition temperature are found compared to untreated and FR+ MM treated lyocell. Such an improved sustainable recipe formulation can be used for lyocell fabric without any health risk in apparel wear.",
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Citric acid based durable and sustainable flame retardant treatment for lyocell fabric. / Mengal, Naveed; Syed, Uzma; Malik, Samander Ali; Ali Sahito, Iftikhar; Jeong, Sung Hoon.

In: Carbohydrate Polymers, Vol. 153, 20.11.2016, p. 78-88.

Research output: Contribution to journalArticle

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