Effect of ionizing radiation on the properties of PLA packaging materials

被引：0

作者：

Melski, Krzysztof ^{[2
]}

Kubera, Hieronim ^{[2
]}

Gluszewski, Wojciech ^{[1
]}

Zimek, Zbigniew ^{[1
]}

机构：

[1] Inst Nucl Chem & Technol, Ctr Radiat Res & Technol, PL-03195 Warsaw, Poland

[2] Poznan Univ Econ, Dept Commod Sci, PL-61875 Poznan, Poland

来源：

NUKLEONIKA | 2011年 / 56卷 / 01期

关键词：

packaging materials; radiation modification of polymers; radiation sterilization; packaging films; poly(lactic acid) (PLA);

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Poly(lactic acid) (PLA) is attractive as a substitute for classical polymer packaging material due to its biodegradability and sufficient mechanical and barrier properties. Presented research was focused on the changes of basic mechanical parameters after ionizing irradiation performed with doses in the range of 2.5-25 kGy, commonly used in radiation sterilization and preservation of foods. Two commercial available PLA packaging films were tested. The influence of radiation dose on the mechanical properties tensile strength and elongation were determined using standardized methods. Radiation resistance of PLA is sufficient for packaging applications. The investigations of gas products of radiolysis of PLA have been made by gas chromatography after electron beam (EB) irradiations.

引用

页码：65 / 69

页数：5

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