Effect of ionizing radiation on the properties of PLA packaging materials

• Autorzy: Melski K. , Kubera H. , Głuszewski W. , Zimek Z.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

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

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2011
• Tom: Vol. 56, No. 1
• Strony: 65--69
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Melski K.

autor

Kubera H.

autor

Głuszewski W.

autor

Zimek Z.

• Department of Commodity Science, The Poznań University of Economics, 10 Niepodległości Ave., 61-875 Poznań, Poland,

Bibliografia

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• 2. Głuszewski W, Zagórski ZP (2008) Radiation effects in polypropylene/polystyrene blends as the model of aromatic protection effects. Nukleonika 53;S1:S21–S24
• 3. Głuszewski W, Zagórski ZP (2009) Radiation resistance of polymers – for example polypropylene. Tworzywa Sztuczne i Chemia 3:26–29 (in Polish)
• 4. Głuszewski W, Zagórski ZP (2010) The processes of radiation crosslinking of polymers. Tworzywa Sztuczne i Chemia 2:58–60 (in Polish)
• 5. ISO (1998) Plastics – determination of tensile properties. PN-EN ISO 527-1, 2, 3:1998. International Organization for Standardization, Geneva
• 6. Lima LT, Aurasb R, Rubinob M (2007) Processing technologies for poly(lactic acid). Prog Polym Sci 33:820–852
• 7. Oakland JS, Follwell RF (1990) Statistical process control. Billing and Sons Ltd., Worcester, pp 110–111
• 8. Siracusaa V, Rocculib P, Romanib S, Rosa MD (2008) Biodegradable polymers for food packaging: a review. Trends Food Sci Technol 19:634–643
• 9. Vargas LF, Welt BA, Pullammanappallil P et al. (2009) Effect of electron beam treatments on degradation kinetics of polylactic acid (PLA) plastic waste under backyard composting conditions. Packaging Technol Sci 22:97–106
• 10. WHO (1988) Irradiation. A technique for preserving and improving the safety of food. World Health Organization, Geneva