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Preparation and Characterization of Polypropylene/Montmorillionite Nanocomposites  

Lee Sang-Uk (Polymeric Nanomaterials Lab., Korea Research Institute of Chemical Technology)
Oh In-Hwan (Polymeric Nanomaterials Lab., Korea Research Institute of Chemical Technology)
Lee Jae Heung (Polymeric Nanomaterials Lab., Korea Research Institute of Chemical Technology)
Choi Kil-Yeong (Polymeric Nanomaterials Lab., Korea Research Institute of Chemical Technology)
Lee Sung-Goo (Polymeric Nanomaterials Lab., Korea Research Institute of Chemical Technology)
Publication Information
Polymer(Korea) / v.29, no.3, 2005 , pp. 271-276 More about this Journal
Abstract
Polypropylene (PP)/montmorillonite (MMT) nanocomposites were prepared by melt mixing methods. MMT modified by dimethyl hydrogenated tallow 2-ethylhexyl ammonium (Cloisite 15A) was used. Polyolefine oligomer with telechelic OH groups was used as a compatibilizer. The degree of dispersion of MMT in the nanocomposites was measured by X-ray diffractometer and transmission electron microscope (TEM) images. MMT was well exfoliated when the contents of compatibilizer was 25 phr. The thermal stability that observed by thermogravimetric analysis (TGA) increased with the contents of MMT increased up to 5 phr. The complex viscosities and storage moduli of PP nanocomposites enhanced as the contents of compatibilizer decreased and those of MMT increased.
Keywords
nanocomposite; PP; montmorillonite; compatibilizer; polyolefine oligomer;
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