| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 복합재료 |
| 제목 | Polypropylene nanocomposites by using modified PP and diamine |
| 초록 | To maximize their physical and mechanical properties, Recent studies on PP/clay nanocomposites have focused on the uniform dispersion of modified clay particles in polymer matrix. Clay exfoliation has been pursued by the compounding of stearylammonium- exchanged montmorillonite (MMT), maleic anhydride-g-polypropylene (MAPP), and PP homopolymer with extrusion compounding. Attempts to fully exfoliate clay particles in PP have been fraught with many challenges because of the mismatch of surface property between clay and PP. In this research, polypropylene / modified clay (diamine inserted cloisite 20A) nanocomposites were prepared by compounding Polybond series ( polypropylene –g-maleic anhydride ) with clay modified with hexamethylene diamine(HMDA) . In XRD results , diamine inserted clay shows lager d-spacing than those of cloisite 20A and shifts toward lower angle. Three types of maleated polypropylene-layered silicate nanocomposites with different dispersion states of layered silicate (aggregated, intercalated, and exfoliated states) are prepared from four kinds of polypropylenes with different molecular weights and PDI value, and three kinds of maleated polypropylene. The relation between molecualr weight and maleic anhydride contents on mechanical properties is investigated. 참고문헌 1. Nam, P. H.; Maiti, P.; Okamoto, M.; Kotaka, T.; Hasegawa, N.; Usuki, A. Polymer 2001, 42, 9633. 2. Manias, E.; Touny, A.; Wu, L.; Strawhecker, K.; Lu, B.; Chung, T. C. Chem Mater 2001, 13, 3516. 3. Hasegawa, N.; Kawasumi, M.; Kato, M.; Usuki, A.; Okada, A. J Appl Polym Sci 1998, 67, 87. |
| 저자 | 구광회, 김성철 |
| 소속 | 한국과학기술원 |
| 키워드 | polypropylene; polybond; HMDA |
