| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 복합재료 |
| 제목 | Influence of surface functionalized montmorillonite clay on the properties of polyvinyl alcohol nanocomposites |
| 초록 | In this work, polyvinyl alcohol nanocomposites filled with aminosilane functionalized montmorillonite clay have been prepared by sol-gel method. X-ray diffraction studies of the PVOH nanocomposites reveal that there is no drastic variation in d-spacing due to intercalation of PVOH between the clay layers. X-ray diffraction and DSC studies corroborate the change in crystallinity of PVOH due to the loading of nanoclay into the system. Loading of silane functionalized montmorillonite clay significantly improves the mechanical properties like tensile strength and elongation at break. Increase in loading of nanoclay further improves the tensile property especially elongation at break upto a certain loading in contrast to pure montmorillonite clay. Thermal degradation studies of polyvinyl alcohol nanocomposites exhibits two transitions that are attributed to the pure and crosslinked PVOH. Dynamic mechanical analysis of the PVOH nanocomposites shows a decrease in tan peak and width that are corresponds to the increase in crystallinity and the development of crystals with similar crystallite sizes. Figure 1: Influence of molecular weight of PVOH on the mechanical properties of PVOH nanocomposites. |
| 저자 | 이세형, 류승훈, 샨묵하라즈, 이광용, 노우현 |
| 소속 | 경희대 |
| 키워드 | polyvinyl alcohol nanocomposites; silane functionalized montmorillonite clay |
