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J. Conserv. Sci > Volume 31(3); 2015 > Article
Journal of Conservation Science 2015;31(3):243-254.
DOI: https://doi.org/10.12654/JCS.2015.31.3.05    Published online September 30, 2015.
접착제에서 발생하는 휘발성유기화합물(VOCs)에 대한 안정성 연구
이현경, 위광철
The Studies of Stability for Volatile Organic Compounds(VOCs) Generated from the Adhesives
Hyeon Kyeong Lee, Koang Chul Wi
초 록
본 연구에서는 각종 재료에 의한 잠재적인 손상 검증 실험인 Oddy Test를 통해 금속유물 보존처리 과정에서 사용되는 접착제 및 코팅제를 선정하여 부식반응이 관찰된 시편으로 손상 원인을 확인하고자 한다. 6종의 접착제와 Fe, Pb, Cu, Ag 4종의 금속 시편을 사용하였다. 연구 결과, 중량 변화는 Cellulose계 접착제에 노출된 Fe시편이 29.87%로 높은 증가를 보였으며, Pb, Cu, Ag시편 순으로 증가율을 보였다. 색도 측정 결과는 Cellulose계 접착제의 변화값이 높게 나타났다. 접착제에서 발생하는 VOCs를 GC-MS로 분석한 결과, 접착제 6종 모두 Acetic acid가 검출되었다. 그 중 Cellulose계 접착제에서 다른 5종의 접착제와 비교하였을 때 1mg당 VOCs농도가 900배 이상 함량이 높았고, 소량의 Formic acid가 검출되었다. 이는 산성 불순물과 빛에 의해 촉진되기 때문으로 추측된다. 이 반응이 분자량 감소와 질소산화물과 다량의 산을 생성하는 결과가 되며 황변화 등 부식 촉진의 요인이 된다고 판단된다.
중심어: 접착제, 부식, 휘발성유기화합물
ABSTRACT
In this study, the stability of the adhesive was determined through the Oddy Test that is Verification Test for potential damage by various materials. And to find the factor causing the corrosion of the metal samples, the adhesives and coatings those are usually used in the metal preservation process were selected and treated on the samples. Six kinds of adhesives and four kinds of metal specimens Fe, Pb, Cu, Ag were used. As results, the weight change showed high increasement in the rate of weight change 29.87% of Fe sample. The chromaticity measurement showed the high change value of the Cellulose-based adhesive. In case of the VOCs test from adhesive by using GC-MS, Acetic acid was detected from all six kinds of the adhesives. Compared to cellulose-based adhesives and the other adhesives, the amount of VOCs per 1mg concentration is higher than 900 times and was detected small amount of Formic acid. This is assumed to be facilitated by acid impurities and the light. This reaction was considered as the result of reducing a large amount of molecular and of generating a large amount of Nox. And thus the reacted sulfur changes was considered as the factor for causing corrosion.
Key Words: Oddy Test, GC-MS, Adhesives, Oddy Test, Corrosion, VOCs, GC-MS
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