Synthesis of Poly(propylene)/Graphite Nanocomposites by in Situ Polymerization

被引：27

作者：

Montagna, Larissa Stieven ^{[1
]}

Fim, Fabiana de Carvalho ^{[2
]}

Galland, Griselda Barrera ^{[2
]}

de Souza Basso, Nara Regina ^{[1
]}

机构：

[1] Pontificia Univ Catolica Rio Grande do Sul, Posgrad Program Mat Engn & Technol, Av Ipiranga 6681, BR-90619900 Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande Do Sul, Chem Inst, BR-91570970 Rio Grande Do Sul, RS, Brazil

来源：

BRAZILIAN POLYMER CONGRESS | 2011年 / 299-300卷

关键词：

graphite nanosheets; in situ polymerization; nanocomposites; poly(propylene); MECHANICAL-PROPERTIES; GRAPHITE; COMPOSITE;

D O I：

10.1002/masy.200900133

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This work presents the synthesis of polypropylene/graphite nanocomposites by in situ polymerization using the catalytic system C20H16Cl2Zr (rac-ethylenebis (indenyl) zirconium(IV)) dichloride/Methyoluminoxane (MAO). 60 nm graphite nanosheets (GNS) were obtained by means of the chemical exfoliation, thermal and ultrasound treatment. GNS previously treated with MAO were added into the reactor at percentages of 0.3, 1.0 and 2.2% (w/w) in relation to nanocomposite yields. The morphology of graphite nanosheets and nanocomposites was studied by Scanning Electron Microscopy (SEM). Moreover, the structural properties of natural graphite flake (NGF), graphite nanosheets (GNS) and nanocomposites were observed through the X-Ray diffraction (XRD) analysis and by Transmission Electron Microscopy (TEM).

引用

页码：48 / 56

页数：9

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