Improving the oxygen barrier properties of polyethylene terephthalate by graphite nanoplatelets

被引：71

作者：

Al-Jabareen, Ahmad ^{[1
,2
,3
]}

Al-Bustami, Hammam ^{[4
]}

Harel, Hannah ^{[1
,2
]}

Marom, Gad ^{[1
,2
]}

机构：

[1] Hebrew Univ Jerusalem, Inst Chem, Casali Inst Appl Chem, IL-91904 Jerusalem, Israel

[2] Hebrew Univ Jerusalem, Ctr Nanosci & Nanotechnol, IL-91904 Jerusalem, Israel

[3] Al Quds Univ, Dept Mat Engn, IL-20002 Jerusalem, Israel

[4] Jerusalem Coll Engn, Dept Adv Mat Engn, IL-91035 Jerusalem, Israel

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2013年 / 128卷 / 03期

关键词：

composites; films; polyesters; GAS-TRANSPORT PROPERTIES; ELECTRICAL-CONDUCTIVITY; CRYSTALLIZATION; PET; POLY(ETHYLENE-TEREPHTHALATE); NANOCOMPOSITES; BLENDS; PERMEABILITY; COMPOSITES; SEPARATION;

D O I：

10.1002/app.38302

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Enhancement of the oxygen gas barrier properties of polyethylene terephthalate (PET), used in the packaging industry, is the main objective here. For this purpose, nanocomposites of PET containing graphite nanoplatelets (GNPs) were prepared by melt compounding. The effects of the nanocomposites' structural morphology on oxygen gas permeability were analyzed using a range of thermal, microscopic, and mechanical characterization techniques. The investigated nanocomposite films exhibited GNP exfoliated morphology and good mixing with PET, as well as uniform dispersion within the polymer. All nanocomposite films were shown to possess superior oxygen barrier properties and improved thermal and dimensional stability compared with the plain PET films. In the best case, for 1.5 wt % GNP, the oxygen permeation was reduced by more than 99%. The improved barrier properties are attributed to the direct effect of the GNPs and to their induced increase of degree of crystallinity. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

引用

页码：1534 / 1539

页数：6

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