| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.2352 |
| 발표분야 |
고분자 |
| 제목 |
Synthesis of PVC MMT Nanocomposites via in situ Miniemulsion Polymerization |
| 초록 |
PVCMMT nanocomposites were synthesized by encapsulating MMT via miniemulsion polymerization. The miniemulsification was carried out by using Ultraturrax homogenizer. The average particle size (APS) and particle size distribution (PSD) of PVC latexes ultimately depend on the agitation intensity and in miniemulsification process and concentration of emulsifier. The APS of latexes were in order of 0.4-0.7m and the PSD of latexes were in order of 0.81.5. The stability of PVC nanocomposites latexes were very good at low filler loading. The maximum MMT could be encapsulated was 4 wt%. The XRD patterns and TEM images showed that the almost all MMT were exfoliated dispersion in PVC matrix. The glass transition temperature of PVCMMT nanocomposites increased with the MMT loading. At low temperature (less than 300℃), the thermal stability of PVC-MMT nanocomposite was lower than that of pristine PVC. The onset decomposition temperature Tonset of PVCMMT nanocomposites decreased with increasing of MMT loading. However, at high temperature, the thermal stability of PVCMMT nanocomposites were much higher than that of pristine PVC. |
| 저자 |
박두환, Pham Viet Hung, 이용범, 정진석
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| 소속 |
울산대 |
| 키워드 |
poly (vinyl chloride); montmorillonite (MMT); nanocomposite; miniemulsion polymerization
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| E-Mail |
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| 원문파일 |
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