| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.273 |
| 발표분야 | 복합재료 |
| 제목 | Structure-Property relationship of Nylon/Clay Nanocomposites |
| 초록 | Interaction between inorganic layered materials and organic substances has attracted increasing the interest for both scientific and industrial perspectives. The origin of polymer-clay hybrid1, 2 starts with the creation of Nylon-6-clay hybrid (NCH) developed in 1986 under TCRDL project, Japan. The addition of only a few weight percentage of clay is known to be very effective in providing materials with an interesting-array of properties. Nanocomposites are defined by the particles size of the dispersed phase having at least one dimension less than 102 nm. NCH commercial samples of nylon homopolymer and copolymer from UBE and UNITIKA industries were used in this study. The thermal, Morphological and X-ray diffraction studies were carried out for the above samples. The DSC study shows that, as the clay concentration increases heat of fusion decreases. This reflects in percentage crystallinity (χc). As the clay percent increases, percentage crystallinity decreases substantially. The effect of increase in clay content influences the thermal stability with a slight increase in the Tmax. Thermal stability of copolymer-clay nanocomposite is higher than nylon-6-clay nanocomposite. SEM (representative micrograph-Fig.1) observation states, the distribution of clay particles are within the polymer matrix. Also it seems a good adhesion existed between the clay layers and polymer matrix. The X-ray diffraction pattern shows (Fig.2) that in the nylon clay nanocomposite, increase in percentage of clay has the effect of promoting the formation of the γ-form. γ -crystalline form is less pronounced in copolymer than nylon 6 clay nanocomposite. References: 1. Kawasumi.M., J.Polym.Sci.Part A: Polym.Chem., Vol 42, 819 (2004) 2. Pinnavaia.T.J. and Beall.G.W., Polymer-Clay Nanocomposites, Wiley-Series in Polym.Sci.,(1997) |
| 저자 | Sriram Venkataramani, 박민규, 김성철 |
| 소속 | 한국과학기술원 기능성고분자신소재연구센터 |
| 키워드 | Clay nanocomposite; Polymer-clay hybrid |
