Thermal characterization of polypropylene/vermiculite composites

被引：13
作者：
Gomes, Elaine V. D. [1 ]
Visconte, Leila L. Y. [1 ]
Pacheco, Elen B. A. V. [1 ]
机构：
[1] Univ Fed Rio de Janeiro, Inst Macromol Prof Eloisa Mano, BR-21945970 Rio De Janeiro, Brazil
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2009年 / 97卷 / 02期
关键词：
Polypropylene; Organo-vermiculite; Composites; Vermiculite; MECHANICAL-PROPERTIES; LAYERED SILICATE; NANOCOMPOSITES; BEHAVIOR; TALC;
D O I：
10.1007/s10973-009-0331-x
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Vermiculite clay (VMT) was organically modified with a quaternary organic salt and added to polypropylene (PP). The compounds were prepared by melt intercalation using a twin extruder. The morphology of the composites was investigated through wide-angle X-ray diffraction (WAXD). The WAXD results suggested that exfoliation phenomena were found for the composites with modified clay. The thermal properties of the obtained composites were studied by means differential scanning calorimetry (DSC) and thermogravimetry (TG) measurements. A variation in the crystallinity of PP was found. A significant increase of the thermal stability of PP was achieved in the presence of the modified VMT.
引用
收藏
页码：571 / 575
页数：5
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