Morphology and Properties of Poly(propylene)/Ethylene-Octene Copolymer Blends Containing Nanosilica

被引：18
作者：
Lee, Sung Hyo
Bailly, Mathieu [2 ]
Kontopoulou, Marianna [1 ]
机构：
[1] Queens Univ, Dept Chem Engn, Kingston, ON K7L 3N6, Canada
[2] Innovat Cells, Quartier Innovat, CH-1015 Lausanne, Switzerland
来源：
MACROMOLECULAR MATERIALS AND ENGINEERING | 2012年 / 297卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
mechanical properties; morphology; nanocomposites; silica; thermoplastic olefin blends; IMMISCIBLE POLYMER BLENDS; PP-G-MA; MECHANICAL-PROPERTIES; TERNARY COMPOSITES; PHASE-STRUCTURE; POLYPROPYLENE COMPOSITES; FUNCTIONALIZED COMPONENTS; ELASTOMER INCLUSIONS; THERMAL-PROPERTIES; CALCIUM-CARBONATE;
D O I：
10.1002/mame.201100147
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of nanosilica addition on the morphology and mechanical properties of blends of isotactic PP and an ethylene/octene copolymer (EOC) is studied. TEM reveals that the well-dispersed nanoparticles are localized exclusively in the PP phase. In the presence of a maleated PP compatibilizer addition of nanosilica leads to more finely dispersed EOC domains and a finer co-continuous morphology. The nanoparticles reduce the rate of coalescence of the dispersed phase domains. The mechanical properties depend on the EOC and PP-g-MA content. Tensile and flexural properties are significantly enhanced in the presence of the silica nanoparticles, whereas impact properties are not affected. These enhancements are attributed to the favorable microstructure of the blends.
引用
收藏
页码：95 / 103
页数：9
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