Polyethylene/Polycaprolactone Nanocomposite Films for Food Packaging Modified with Magnetite and Casein: Oxygen Barrier, Mechanical, and Thermal Properties

被引：22

作者：

Rescek, Ana ^{[1
]}

Scetar, Mario ^{[2
]}

Hrnjak-Murgic, Zlata ^{[3
]}

Dimitrov, Nino ^{[4
]}

Galic, Kata ^{[2
]}

机构：

[1] PIK Vrbovec Dd, Dept Res & Dev, Vrbovec, Croatia

[2] Univ Zagreb, Fac Food Technol & Biotechnol, Dept Food Engn, Zagreb, Croatia

[3] Univ Zagreb, Fac Chem Engn & Technol, Dept Polymer Engn & Organ Chem Technol, Zagreb, Croatia

[4] Croatian Natl Inst Publ Hlth, Dept Food Contact Mat & Articles, Zagreb, Croatia

来源：

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2016年 / 55卷 / 14期

关键词：

Casein; magnetite; overall migration; oxygen permeability; polycaprolactone; polyethylene; polymer nanocomposite; FREE-VOLUME; COMPOSITES; SILICA; NANOPARTICLES; NANOTECHNOLOGY; TRANSPORT; MEMBRANES; POLYMERS; SORPTION;

D O I：

10.1080/03602559.2016.1163606

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyethylene (PE) was modified and prepared as double-layer polyethylene/polycaprolactone (PE/PCL) film. Magnetite and casein were added to the PCL-coating film to improve barrier properties and prevent destruction of basic structure of primary polymer PE. Significant improvements were observed with regards to mechanical (tensile strength, elongation at break) and thermal properties, while barrier (O-2 permeability) properties were slightly improved. Overall migration values into acetic acid were lower (from 1 to 4.6mg/dm(2)) than the upper limit set by the legislation. Specific migration of iron in PE/PCL-Fe samples is also below (mu g/L) specific migration limit value set by the legislation (mg/kg). [GRAPHICS]

引用

页码：1450 / 1459

页数：10

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