CHARACTERIZATION OF CURRENT ENVIRONMENTALLY-FRIENDLY FILMS

被引:10
作者
Curtzwiler, G. [1 ]
Vorst, K. [2 ]
Palmer, S. [2 ]
Brown, J. W. [3 ]
机构
[1] Calif Polytech State Univ San Luis Obispo, Dept Polymers & Coatings, San Luis Obispo, CA 93407 USA
[2] Calif Polytech State Univ San Luis Obispo, Dept Ind Technol Plast & Packaging, San Luis Obispo, CA 93407 USA
[3] Calif Polytech State Univ San Luis Obispo, Dept Hort & Crop Sci, San Luis Obispo, CA 93407 USA
关键词
biodegradable; PLA; transmission rate; mechanical; DSC; thermal; fresh-cut; produce; film; sustainable;
D O I
10.1177/8756087908100836
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The purpose of this study was to evaluate the physical and mechanical properties of environmentally-friendly films for fresh-cut lettuce. This objective was achieved by determining the gas transmission rates for oxygen, water vapor, carbon dioxide, and the thermal and mechanical properties of the films following ASTM standards D3985, F1249, F2476-05, D3418-03, and D882-02, respectively. Electromechanical testing and thermal analysis determined that biodegradable polypropylene (BPP) possessed similar mechanical and thermal properties when compared to the industry standard. This study suggests that BPP films may be used in place of traditional petroleum-based films currently used to package fresh-cut produce.
引用
收藏
页码:213 / 226
页数:14
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