Poly(lactic acid) (PLA) is the most common biodegradable polymer in the food packaging industry; however, its inherent brittleness limits its applicability. To overcome this limitation, we prepared PLA/poly(ethylene glycol) (PEG) blend films via solvent-free melt extrusion and investigated the effects of different molecular weights (MW) and concentrations of PEG on the thermal, mechanical, barrier, and morphological properties and transparency of the blend films. As the PEG concentration increased, the glass transition and cold crystallization temperatures of the PLA phase in the blend films decreased, i.e., crystallization improved. The tensile strength and elongation of the blend films increased at low PEG concentration, whereas tensile strength decreased and elongation increased at high PEG concentration, indicating an improvement in the ductility of PLA. The oxygen barrier property and transparency of the films improved at high PEG MW and concentration. These PLA/PEG blend films have potential applications as biodegradable flexible packaging materials.
机构:
Michigan State Univ, Sch Packaging, E Lansing, MI 48824 USAPolymer Source Inc, Montreal, PQ H9P 2X8, Canada
Auras, Rafael
;
Hwang, Sung W.
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Michigan State Univ, Sch Packaging, E Lansing, MI 48824 USA
Korea Packaging Ctr, Korea Inst Ind Technol, Bucheon Si 421742, South KoreaPolymer Source Inc, Montreal, PQ H9P 2X8, Canada
机构:
Univ Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Arjmandi, Reza
;
Hassan, Azman
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Univ Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Hassan, Azman
;
Eichhorn, Stephen J.
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机构:
Univ Exeter, Coll Engn Maths & Phys Sci, Exeter EX4 4QL, Devon, EnglandUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Eichhorn, Stephen J.
;
Haafiz, M. K. Mohamad
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机构:
Univ Sains Malaysia, Sch Ind Technol, George Town 11800, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Haafiz, M. K. Mohamad
;
Zakaria, Zainoha
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Univ Teknol Malaysia, Fac Sci, Johor Baharu 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Zakaria, Zainoha
;
Tanjung, Faisal Amri
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Univ Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
机构:
Michigan State Univ, Sch Packaging, E Lansing, MI 48824 USAPolymer Source Inc, Montreal, PQ H9P 2X8, Canada
Auras, Rafael
;
Hwang, Sung W.
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Sch Packaging, E Lansing, MI 48824 USA
Korea Packaging Ctr, Korea Inst Ind Technol, Bucheon Si 421742, South KoreaPolymer Source Inc, Montreal, PQ H9P 2X8, Canada
机构:
Univ Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Arjmandi, Reza
;
Hassan, Azman
论文数: 0引用数: 0
h-index: 0
机构:
Univ Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Hassan, Azman
;
Eichhorn, Stephen J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Exeter, Coll Engn Maths & Phys Sci, Exeter EX4 4QL, Devon, EnglandUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Eichhorn, Stephen J.
;
Haafiz, M. K. Mohamad
论文数: 0引用数: 0
h-index: 0
机构:
Univ Sains Malaysia, Sch Ind Technol, George Town 11800, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Haafiz, M. K. Mohamad
;
Zakaria, Zainoha
论文数: 0引用数: 0
h-index: 0
机构:
Univ Teknol Malaysia, Fac Sci, Johor Baharu 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia
Zakaria, Zainoha
;
Tanjung, Faisal Amri
论文数: 0引用数: 0
h-index: 0
机构:
Univ Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Chem Engn, Dept Polymer Engn, Johor Baharu 81310, Johor, Malaysia