보존과학회지 (Journal of Conservation Science)

  • 제36권6호
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  • Pages.541-548
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  • 2020
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  • 1225-5459(pISSN)
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  • 2287-9781(eISSN)
한국문화재보존과학회 (The Korean Society Of Conservation Science For Cultural Heritage)
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카라기난 기반 액상형 바이오 종이 접착제의 제조 및 물성에 관한 연구

Carrageenan-Based Liquid Bioadhesives for Paper and Their Physical Properties

  • 오승준 (한서대학교 문화재보존과학연구센터) ;
  • 한원식 (한서대학교 문화재보존과학연구센터) ;
  • 위광철 (한서대학교 문화재보존학과)
  • Oh, Seung-Jun (The Research Center of Conservation Science for Cultural Heritage, Hanseo University) ;
  • Han, Won-Sik (The Research Center of Conservation Science for Cultural Heritage, Hanseo University) ;
  • Wi, Koang-Chul (Department of Cultural Heritage Conservation, Hanseo University)
  • 투고 : 2020.11.04
  • 심사 : 2020.12.04
  • 발행 : 2020.12.29
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초록

휘발성 유기 화합물 기반의 접착제를 대체하고자 천연 재료에 대한 수요가 늘고 있지만, 제조 및 생산의 전 과정에서 휘발성 유기화합물 사용을 일절 배제할 경우, 제조의 곤란, 생산성 및 보존성의 저하 등의 단점이 나타났다. 본 연구에서는 해조류의 카라기난 성분을 이용해 천연바이오 접착제를 제조하고 종이 접착제로서의 가능성을 확인해보고자 하였다. 카라기난을 이용한 액상형 바이오 종이 접착제의 제조에서 carrageenan의 겔화는 접착제의 제조과정, 발림성, 균일성, 접착 강도의 문제를 나타내게 된다. 이를 위하여 추출된 전체 carrageenan 중에서 λ-carrageenan만을 분리하여 사용하였으며 이로 인하여 매우 안정된 종이 접착제의 제조가 가능하였다. 최종 조성은 λ-carrageenan 52.0 ± 1.0%, polyvinylpyrrolidone 30.5 ± 0.5%, ethylhexylglycerin 1.0 ± 0.05%, glycerin 1.5 ± 0.05%, dextrine 13.5 ± 0.5%, 식품용 소포제 FD330A 0.6 ± 0.05%의 조성이었다. 이들이 나타내는 점도는 1.13 ± 0.07 × 105 cPs (25℃), pH 6.22, 건조속도 15 min, △b* -10.79, △E*ab 8.18의 자외선 열화 결과를 나타내고 있었으며 44.63 kgf/cm2의 매우 우수한 접착 강도를 나타내고 있었다. 이 접착제는 TVOC, HCHO 및 중금속 모두에서 불검출 결과를 나타내었으며 총호기성생균수 측정과 ASTM G 21-15 시험법에 의하여 곰팡이 challenge test에서도 곰팡이에 대한 우수한 저항성 결과를 나타내고 있어서 접착제의 항속성에서도 우수한 결과를 나타내고 있는 것으로 보인다.

There is a growing demand for natural materials to replace adhesives based on volatile organic compounds (VOCs). However, the exclusion of VOCs from the manufacturing process leads to difficulties in manufacturing, and reduction in productivity and preservability. In this paper, we report the manufacture of natural bioadhesives using the carrageenan component of seaweed. λ-carrageenan, isolated from the extracted total carrageenan, was used to prepare a highly stable adhesive for paper. The resulting composition was 52.0 ± 1.0% λ-carrageenan, 30.5 ± 0.5% Polyvinylpyrrolidone, 1.0 ± 0.05% ethylhexylglycerin, 1.5 ± 0.05% glycerin, 13.5 ± 0.5% dextrine, and 0.6 ± 0.05% food-grade antifoam emulsion. The viscosity was found to be 1.13 ± 0.07 × 105 cP (25℃), UV degradation occurred at pH6.22, drying rate was 15min, △b* was -10.79, and △E* ab was 8.18. The bioadhesive showed an excellent adhesion strength of 44.63 kgf/cm2. Thus this adhesive showed excellent fungal resistance and good adhesive persistence, without the presence of total volatile organic compounds (TVOC), formaldehyde (HCHO), and heavy metals.

키워드

과제정보

본 연구는 문화체육관광부 및 한국콘텐츠진흥원의 연구개발지원사업으로 수행되었음(과제번호: R2018020045).

참고문헌

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