Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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UV-curable Flame-Retardant Finish of Cotton Using Vinyl Bisphosphonic Acid (VBPA) Synthesized from 1-Hydroxyethane-1,1-diphosphonic Acid (HEDP)

HEDP로부터 합성한 비닐이포스폰산(VBPA)을 이용한 면직물의 광경화형 방염가공

  • Jang, Mi-Ji (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Jang, Jinho (Department of Materials Design Engineering, Kumoh National Institute of Technology)
  • 장미지 (금오공과대학교 소재디자인공학과) ;
  • 장진호 (금오공과대학교 소재디자인공학과)
  • Received : 2022.02.10
  • Accepted : 2022.04.12
  • Published : 2022.04.30
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Abstract

Halogen or organophosphorus-based flame retardants have been used as conventional flame retardants for textile fibers. While halogen-based flame retardants emit toxic gases such as HBr and HCl, some commercial phosphorus-based flame retardants may release large amounts of formaldehyde. In this study, as a new ecofriendly organophosphorus flame retardant, vinyl bisphosphonic acid (VBPA) is synthesized from 1-Hydroxyethane-1,1-diphosphonic acid (HEDP) with a yield of 90.8% by a high-temperature dehydration reaction at 200 ℃ for 1.5 h, which was confirmed by 31P nuclear magnetic resonance (NMR) as well as Fourier transform infrared (FT-IR) and Raman analyses. In addition, the thermal behavior of the VBPA-treated cotton fabrics are investigated using limiting oxygen index (LOI), thermogravimetric analysis (TGA), and microcombustion calorimetry (MCC). Lowered thermal decomposition and combustion reactions may be resulted from the dehydration and crosslinking activated by the phosphonic acids in the VBPA-cured cotton, indicating a condensed-phase flame-retarding mechanism. VBPA can be used as a new formaldehyde-free flame retardant for cellulosic fabrics.

Keywords

Acknowledgement

이 논문은 2018년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업입니다(과제 번호: 2018R1A2B6007800).

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