Development of a manufacturing process for an organic-inorganic nanocomposite and its physical property characterization

Title
Development of a manufacturing process for an organic-inorganic nanocomposite and its physical property characterization
Authors
서영욱오경환서용석홍순만
Keywords
nanocomposite; Crystallization; Foaming process
Issue Date
2010-04
Publisher
International Journal of Material Forming
Citation
VOL 3, NO 1, 691-694
Abstract
The nonisothermal crystallization kinetics of a polyolefin terpolymer (poly(propylene-co-ethylene-co-1- butene) and its expanded foam were investigated by differential scanning calorimetry. A kinetic equation for nonisothermal crystallization was employed to analyze the crystallization characteristics of the terpolymer and its foam. The Avramic exponent, n, can be reasonably well determined from the nonisothermal crystallization exotherm. The polarized optical microscopy showed that pristine terpolymer had a well developed spherulite morphology whereas the foamed terpolymer consisted of elongated entities that subsequently developed as more bundle-like entities. The latter morphology is typical one of the γ-phase. The difference in crystallization behavior observed for the pristine and foamed terpolymer samples is attributed to the formation of different morphologies during the foam expansion process. We also studied application of a foaming process to prepare an inorganic-organic nanocomposite. The foaming process enabled better dispersion of clay particles as well as their intercalation and exfoliation in the polypropylene matrix.
URI
http://pubs.kist.re.kr/handle/201004/38687
ISSN
1960-6206
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE