| 학회 | 한국고분자학회 |
| 학술대회 | 2003년 봄 (04/11 ~ 04/12, 연세대학교) |
| 권호 | 28권 1호, p.86 |
| 발표분야 | 복합재료 |
| 제목 | Nano Clay- As an Effective Compatibilizer in Nylon 6/EPR Incompatible Polymer Blend System |
| 초록 | Mixing two or more polymers together to produce blend is a well-established strategy for achieving a specified portfolio of physical properties. It offers an alternative way to develop new polymeric materials rather than synthesizing new polymers. But because of general immiscibility of polymers associated with the inherent thermodynamic incompatibility, the wide use of polymer blends in industry is limited. In the present work, efforts have been put forward to study the effect of nano clay and EPR-g-MA on the compatibility of an incompatible polymer blend system consisting of nylon 6 and ethylene propylene rubber (EPR), prepared by the melt processing method. The morphology of the blends was studied by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). The average diameter size of the dispersed EPR domains in nylon 6/EPR blends decreases significantly by the addition of nano clay into the blend system. The addition of both grafted maleic anhydride and nano clay into the blend system results in further decrease of the average diameter size of dispersed EPR domains to a markedly extent. The increased compatibility of the blend in presence of nano clay is explained by considering the adsorption phenomena of the polymer chains onto the clay platelet surface that produces in situ grafts on the clay surfaces. The exfoliated clay platelets are also stiffer than the polymer chains. Hence, the bending energy of the interface is high. This favors formation of small-dispersed domains, further aiding the compatibilization process. Thus, the clay platelets located at the interface acts as effective binder for the polymer chains. The TEM results showed an exfoliated clay structures in the nylon 6/EPR/clay composite system. This work was supported by National RND Program (M1-0214-00-0230) by MOST, and by National Research Laboratory Program. |
| 저자 | B.B.Khatua;이동준;김진곤 |
| 소속 | 포항공과대 |
| 키워드 | polymer blend; nanocomposite; clay; compatibilizer |
