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Journal of Conservation Science 2011;27(2):135-144.
Published online June 30, 2011.
금속유물 코팅제와 Cyanoacrylate 접착제의 반응속도 및 원인분석: 초기접착속도를 중심으로
권희홍, 허일권, 김수기
A Study on the Reaction Rate and Cause Analysis of Cyanoacrylate Adhesives According to the Coating Mixtures for Metal Artifacts
Hee-Hong Kwon, Il-Kwon Huh, Soo-Ki Kim
초 록
금속유물 보존처리시 유물 상태, 재질 및 환경 등 보존처리자의 판단에 따라서 다양한 코팅제를 사용하게 된다. 코팅제 종류 및 용제에 따라서 cyanoacrylate 접착제의 초기접착속도에 차이를 나타내므로 보존처리 효율성과 연관이 있다. 본 연구에서는 코팅제 종류와 용제에 따라 cyanoacrylate 접착제의 초기접착속도에 미치는 영향과 원인에 대해 알아보았다. 그 결과, 표면의 거칠기가 편평할수록 접착제의 젖음성이 향상되어 빠른 접착이 이루어졌다. 또한 V-Flon의 C-F, C-O-C 흡수 피크와 코팅제의 분자량과 유리전이온도는 초기접착속도에 영향을 미치는 요인으로 크게 작용하였다. 이와 같은 표면․화학적 분석 결과를 토대로 초기접착속도를 측정한 결과 접착제의 종류 및 점도에 따른 상대적 차이는 있으나 모든 접착제에서 V-Flon > Paraloid B-72(in xylene) > Paraloid NAD-10 > Paraloid B-72(in acetone)순으로 초기접착속도를 확인하였다.
중심어: 접착제, 초기접착속도
ABSTRACT
When metal artifacts have to undergo conservation treatment, the person in charge of the treatment selects and uses various coating mixtures based on his judgment regarding their condition, material, or environment. Since the kinds of coating mixtures or solvents make a difference in the set time of cyanoacrylate adhesives, they have something to do with the efficiency of the conservation treatment. This study examines the effects and causes that affect the set time of cyanoacrylate adhesives according to the kinds of coating mixtures and solvents and suggests ways to increase the set time. As a result, it is thought that as the surface roughness gets flatter, the wettability of adhesive is improved further, which increases the set time. Moreover, the C-F binding of V-Flon, C-O-C absorption peak, molecular weight of the coating mixtures, and glass transition temperature (Tg) were the factors that significantly affected the set time. According to the result of measuring the set time based on the result of superficial and chemical analysis, relative difference was shown according to the kind and viscosity of adhesive, but all the adhesives indicated the following order of the set time: V-Flon > Paraloid B-72 (in xylene) > Paraloid NAD-10 > Paraloid B-72 (in acetone).
Key Words: Cyanoacrylate, Paraloid B-72, Paraloid NAD-10, V-Flon, Cyanoacrylate, Adhesive, Set time
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