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| 題名: | Effectiveness of a maleated compatibilizer on the tensile and tear properties of peroxide-cured metallocene polyethylene/clay nanocomposites |
| 作者: | Lai, SM (Lai, Sun-Mou)
Chen, WC (Chen, Wen-Chih)
Wang, ZW (Wang, Zi Way) |
| 貢獻者: | Dept Chem Engn |
| 關鍵詞: | OLIGOMERICALLY-MODIFIED CLAY
HIGH-DENSITY POLYETHYLENE
MALEIC-ANHYDRIDE
SILICATE NANOCOMPOSITES
MORPHOLOGY
ELASTOMER
COPOLYMER
SYSTEMS
HYBRID
BLENDS |
| 日期: | 2011-09 |
| 上傳時間: | 2013-01-16 13:27:05 (UTC+8) |
| 摘要: | Peroxide-cured metallocene polyethylene (mPE)/clay nanocomposites were prepared via melt mixing followed by hot press curing. The maleated compatibilizer, mPE grafted maleic anhydride (mPE-g-MA), was incorporated to improve the dispersion of various amounts of commercial organoclay (denoted as 20A). Experimental samples were analyzed using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Results indicated that there was an increase in dispersion with the addition of the compatibilizer. A measurable difference in the crystallization temperature, up to 9.5 A degrees C, can be found for cured mPE reinforced with 5 phr clay in comparison cured mPE, indicating the promotion of crystallization kinetics through the addition of clay moiety. Taking 5 wt% loss as an index of thermal stability, the degradation temperature increased from 375.2 A degrees C in cured mPE to 431.2 A degrees C in the maleated 5 phr-loaded system, the highest improvement in all investigated cases. The Young's Modulus and tear strength of maleated nanocomposites containing the compatibilizer at 9 phr clay content showed the highest values of up to 2 times increment compared those without clay, reflecting the increased interfacial interaction with the exploit of the compatibilizer. |
| 關聯: | JOURNAL OF POLYMER RESEARCH Volume: 18 Issue: 5 Pages: 1033-1042 |
| 顯示於類別: | [化學工程與材料工程學系暨碩士班] 期刊論文
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