Preparation and characterization of poly(ethylene terephthalate) films coated by chitosan and vermiculite nanoclay

被引：19

作者：

Essabti, Fatima ^{[1
]}

Guinault, Alain ^{[1
]}

Roland, Sebastien ^{[1
]}

Regnier, Gilles ^{[1
]}

Ettaqi, Said ^{[2
]}

Gervais, Matthieu ^{[1
]}

机构：

[1] CNAM, CNRS, Arts & Metiers ParisTech, PIMM, 151 Bd Hop, F-75013 Paris, France

[2] ENSAM, Lab Mat Met & Proc Engn, Meknes, Morocco

来源：

CARBOHYDRATE POLYMERS | 2018年 / 201卷

关键词：

Chitosan; Vermiculite; Poly(ethylene terephthalate); Barrier properties; Food packaging; Coating; ELECTRON-BEAM IRRADIATION; FOOD-PACKAGING APPLICATIONS; CORONA DISCHARGE TREATMENT; BARRIER PROPERTIES; EDIBLE FILMS; SILICATE NANOCOMPOSITES; POLYVINYLIDENE CHLORIDE; PERMEATION PROPERTIES; TRANSPORT-PROPERTIES; COMPOSITE FILMS;

D O I：

10.1016/j.carbpol.2018.08.077

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Chitosan (CS) layers are coated on a poly(ethylene terephthalate) (PET) film in order to decrease the oxygen permeability through the polymeric films for food packaging applications. Oxygen transmission rate (OTR) of the 130 mu m PET films can be decreased from 11 to only 0.31 cm(3)/m(2).day with a coated layer of 2 mu m of CS. Additional decrease is obtained with the addition of vermiculite (VMT) to CS matrix in high proportion (40 to 50 w/w%). The OTR. of the coated PET films decreased to very low values, below the detection limit of commercial instrumentation (<= 0.008 cm(3)/m(2) day). This high-barrier behavior is believed to be due to the brick wall nanostructure, which produces an extremely tortuous path for oxygen molecules.

引用

页码：392 / 401

页数：10

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