| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 복합재료 |
| 제목 | The Preparation and Properties of Polypropylene-Clay Nanocomposites using the γ-irradiation |
| 초록 | Polymer–Clay Nanocomposites are a new class of composites which show improved properties in spite of the addition of a small amount of clay to polymers.1 These improved properties are mechanical, dimensional, permeable, thermal stability and flame retardant enhancements compared with virgin polymers or conventional microcomposites.2 In this work, we successfully developed the polypropylene–clay nanocomposites using the γ-irradiation without compatibilizers.3 First of all, Polypropylene-clay nanocomposites were studied by the modification of clay with γ-irradiation to introduce covalent bonds in nanocomposites, and prepared by melt-compounding using an internal mixer with polypropylene, clay modified by γ-irradiation. The dispersion of silicate layers in the polypropylene matrix could be observed from X-ray diffraction (XRD) and transmission electron microscopy (TEM). The formation of a covalent bonding between the polypropylene and silicate layer surface was indicated by infrared spectrum (FT-IR) and by Differential scanning calorimetry (DSC) after purifying by absolute xylene in a Soxlet apparatus. The mechanical and thermal properties of resulting nanocomposites were separately measured as universal testing machine (UTM) and thermogravimetric analyzer (TGA). Fig. 1. XRD patterns of Cloisite 20A and PP/γ-Cloisite 20A composite 참고문헌 1. T. J. Pinnavaia and G.W Beall, Polymer-Clay Nanocomposites, John Wiley & Sons, Ltd, 2002. 2. M. Kawasumi, N. Hasegawa, M. Kato, A. usuki, and A. Okada , Macromolecules, 30, 6333 (1997). 3. D. Gournis, A. E. Mantaka-Marketou, M. A. Karakassides and D. Petridis, Phys Chem Minerals, 27, 514 (2000) |
| 저자 | 배진우1, 남병욱2, 황태원3, 조재영1 |
| 소속 | 1서울대, 2한국기술교육대, 3현대자동차 |
| 키워드 | nanocomposite; polypropylene; clay; modification; γ-irradiation |
