학회 | 한국고분자학회 |
학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
권호 | 30권 2호 |
발표분야 | 복합재료 |
제목 | Effect of layered silicates on the crystallinity and morphology of HDPE/ MMT nanocomposites |
초록 | Generally, it has been known that melt intercalation process is the most effective process for cost reduction compared to other methods in preparing polymer/layered silicate nanocomposites. HDPE-g-MAH/MMT master batch and HDPE/MMT nanocomposites were prepared by melt mixing using a twin screw extruder. The master batch was first prepared with HDPE-g-MAH and MMT in order to enhance the dispersion of MMT. HDPE/MMT nanocomposites were prepared with the mixing of HDPE and MMT or master batch. The structures and morphologies of the nanocomposites were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The crystallization behavior and crystal forms in the HDPE and HDPE/MMT nanocomposites blown films were evaluated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The crystallinity and morphological characteristics of HDPE/MMT nanocomposites were affected by the MMT content and the degree of exfoliation of MMT. (a) (b) Figure 1. XRD patterns of MMT(a) and Compatibilizer/MMT composites(b). |
저자 | 민경대, 김민영, 최길영, 이재흥, 이성구 |
소속 | 한국화학(연) |
키워드 | HDPE; montmorillonite; nanocomposites; blown film; crystallinity |