| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2208 |
| 발표분야 |
이동현상 |
| 제목 |
Optimization of process conditions for UV-thermal dual curable clearcoats using rotational rheometry and FT-IR |
| 초록 |
Incorporating UV-thermal dual curable polymers containing hydroxyl group and C=C bonds for the enhancement of crosslinking network in paints, curing characteristics and rheological properties of automotive clearcoats were systematically investigated by changing process conditions such as curing sequence. The storage modulus (G’) and loss modulus (G”) were obtained from the frequency sweep test by UV module-implemented rotational rheometer. It is found that the UV-thermal curing process induced a remarkable degree of crosslinking for the cured clearcoats and also the UV-thermal sequence and the contents of thermal radical initiator (TRI) and photo initiator (PI) affected the curing behavior of dual curable clearcoats. It was confirmed from FT-IR results that the conversion of reactive sites was well matched with the rheological properties. From these results, the optimal process of curing systems was elucidated. |
| 저자 |
황지원1, 김경남2, 노승만3, 남준현2, 박종명4, 정현욱1
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| 소속 |
1고려대, 2PPG Industries Korea, 3PPG Industries Korea / 고려대, 4POSTECH |
| 키워드 |
clearcoat; UV; rheometer; curing; FT-IR
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| E-Mail |
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| 원문파일 |
초록 보기 |
