Improving the barrier properties of a biodegradable polyester for packaging applications

被引：38

作者：

Sangroniz, Ainara ^{[1
]}

Sangroniz, Leire ^{[1
]}

Gonzalez, Alba ^{[1
]}

Santamaria, Antxon ^{[1
]}

del Rio, Javier ^{[2
]}

Iriarte, Marian ^{[1
]}

Etxeberria, Agustin ^{[1
]}

机构：

[1] Univ Basque Country UPV EHU, Dept Polymer Sci & Technol, POLYMAT, Manuel de Lardizabal 3, Donostia San Sebastian 20018, Spain

[2] Univ Complutense Madrid, Dept Mat Phys, Ciudad Univ S-N, Madrid 28040, Spain

来源：

EUROPEAN POLYMER JOURNAL | 2019年 / 115卷

关键词：

Biodegradable polymer; Free volume; Permeability; Packaging; RHEOLOGICAL PROPERTIES; TRANSPORT-PROPERTIES; THERMOPLASTIC ELASTOMERS; ACID COPOLYMER; POLYMER BLENDS; MELT RHEOLOGY; HYDROGEN; BEHAVIOR; SHEAR; DEGRADATION;

D O I：

10.1016/j.eurpolymj.2019.03.026

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Miscible and thermally stable blends of biodegradable poly(butylene adipate-co-terephthalate) (PBAT) with poly (hydroxy ether of bisphenol A) (PH) are investigated to obtain membranes for packaging applications. Previously the miscibility and adequate degradability of these blends was proven, therefore this system is a good candidate for packaging applications. The crystallinity degree and the free volume, both of crucial importance in transport properties, are analysed as a function of blend composition. The transport properties to different gases and vapours are greatly reduced with the addition of PH. The blends show high elongational viscosity values, which allows expecting good film processability. Overall, this work sheds light on the factors involved in the reduction of permeability which would allow to broaden this strategy to other promising biodegradable materials.

引用

页码：76 / 85

页数：10

共 45 条

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