In conservation treatment of cultural properties, the polymeric resins can greatly affect to the artifacts. Therefore, the properties of those materials must be investigated whether it is comportable or not. In this study, deterioration behaviors of the epoxy resins(Araldite rapid, Araldite AW 106, Devcon 5-Minute, CDK 520, Araldite ...
In conservation treatment of cultural properties, the polymeric resins can greatly affect to the artifacts. Therefore, the properties of those materials must be investigated whether it is comportable or not. In this study, deterioration behaviors of the epoxy resins(Araldite rapid, Araldite AW 106, Devcon 5-Minute, CDK 520, Araldite SV 427) were investigated in various weathering condition such as heat and UV. In addition, to research on the desalination stability and the effect of acid rain in outdoor exposure, the weathering behavior was investigated in acid and base solution respectively. The surface contact angle and the variations of chroma value of the tested sample were measured. The amount of the water absorption was also measured. As a result, 1. The volume change of the resins were measured depending on temperature. The repetitions of these expansions and shrinkages can causeiron artifacts that have been weakened by corrosion detached; after conservation treatment of the iron artifacts, that should be kept at the constant temperature & humidity condition. 2. In the result of measurement on the chroma value, SV 427 (in UV exposure) and Araldite AW 106 (in Acid/Base exposure) showed less color variation. While the other resins showed bigger color variation in exposure in the weathering conditions. Accordingly, it can be recommended to add inorganic materials whose property does not change easily in the long term to get stability about color variation. 3. The result of water absorption showed that Araldite rapid was is stable. In consideration of the results SV 427 absorbed about 5wt.%. 4. In the result of the water absorption and surface contact angle, Araldite AW 106 and Devcon(in Acid/Base exposure) were stable. 5. The color variation of the resins with Microballoon addition was reduced. However, the volumeric change depending on temperature and the amount of water adsorption were increased. Therefore, in case of adding filler, the efficiency of the fillers should be carefully considered. ◁표 삽입▷(원문을 참조하세요)
In conservation treatment of cultural properties, the polymeric resins can greatly affect to the artifacts. Therefore, the properties of those materials must be investigated whether it is comportable or not. In this study, deterioration behaviors of the epoxy resins(Araldite rapid, Araldite AW 106, Devcon 5-Minute, CDK 520, Araldite SV 427) were investigated in various weathering condition such as heat and UV. In addition, to research on the desalination stability and the effect of acid rain in outdoor exposure, the weathering behavior was investigated in acid and base solution respectively. The surface contact angle and the variations of chroma value of the tested sample were measured. The amount of the water absorption was also measured. As a result, 1. The volume change of the resins were measured depending on temperature. The repetitions of these expansions and shrinkages can cause iron artifacts that have been weakened by corrosion detached; after conservation treatment of the iron artifacts, that should be kept at the constant temperature & humidity condition. 2. In the result of measurement on the chroma value, SV 427 (in UV exposure) and Araldite AW 106 (in Acid/Base exposure) showed less color variation. While the other resins showed bigger color variation in exposure in the weathering conditions. Accordingly, it can be recommended to add inorganic materials whose property does not change easily in the long term to get stability about color variation. 3. The result of water absorption showed that Araldite rapid was is stable. In consideration of the results SV 427 absorbed about 5wt.%. 4. In the result of the water absorption and surface contact angle, Araldite AW 106 and Devcon(in Acid/Base exposure) were stable. 5. The color variation of the resins with Microballoon addition was reduced. However, the volumeric change depending on temperature and the amount of water adsorption were increased. Therefore, in case of adding filler, the efficiency of the fillers should be carefully considered. ◁표 삽입▷(원문을 참조하세요)
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