지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.1
- 수록면
- 58 - 65 (8page)
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Paint is widely used on industry with the object of target's surface protection and aesthetics. However, outdated paints are wasted due to the development of updated products for the new trend of colors and quality. Solvent which is one of the paint ingredients can be easily collected by the methods of heating or centrifuging, the recovered solvent is reutilized as a cleaning solvent or low class fuel. On the contrary, it is much difficult to separate a paint resin, pigment and additives, and recycling is limited. This study is to compare heating recovery with centrifugal method for collecting solvent from the paint which wasted in a paint production company for an automobile. In the experiment of heating recovery, it showed that solvent recovery rate was about 90%, however, it had a problem that a paint resin was hardened by heating. On a centrifugal method, solvent recovery rate was 80% and it presented less recovery efficiency than heating method, and there was a characteristic that solvent was collected in a short time. In the result of FT-IR (Fourier Transform Infrared Spectroscopy) analyzing of extracted resin after solvent recovery, we found that it coincided with the inherent peak of acrylic resin, hence, an adhesive was made by mixing a epoxy adhesive with a acrylic resin. The tension and T-peel strength of the adhesive contained 25% of acrylic resin were 182 kgf/cm² and 14.3 kgf/cm², respectively, it found that a bonding strength was more increased than that as there was no acrylic resin. As a result of a risk assessment in worksite, due to the difficulty of entire recovery for a solvent, MEK (Methyl Ethyl Ketone) was 2.3 ppm, it showed much little concentration comparing with 200 ppm which is exposure standard of hazardous substances in working.
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