| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
The Properties of Reactive Hot Melt Polyurethane Adhesives: The Effects of Molecular Weight and Reactive Organoclay |
| 초록 |
We studied the affect of molecular weight on the adhesion properties of reactive hot melt adhesive (RHA), which has polyurethane prepolymer as its major component. The RHAs which were prepared by the two shot method and were of a higher average molecular weight showed improved initial bond strength development compared to that of RHAs prepared by the one shot method but with the same recipe. However, the viscosity of the RHA was increased by this method, which reduced the crosslinking in the cured RHA. This was confirmed by its deteriorated tensile properties and increased tanδ value. The reactive organoclay, Cloisite 30B, also improved the initial bond strength development and raised the viscosity of the RHA, thereby reducing crosslinking in the cured RHA. |
| 저자 |
김동훈1, 김순철1, 김태균2, 김병규3, 정한모1
|
| 소속 |
1울산대, 2화승T&C, 3부산대 |
| 키워드 |
polyurethane; hot melt
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| E-Mail |
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