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Effects of Pressure-Assisted Thermal Sterilization on Properties of Soft Plastic Packaging Materials Containing PET-PE

CAO Yanli1, LIN Bowen1, TANG Yali2,*, LU Lixin3, ZHAO Wei4, FANG Yan1   

  1. 1. Department of Packaging Engineering, School of Medicine and Pharmaceutics, Jiangnan University, Wuxi 214122, China;
    2. Key Laboratory of Food Packaging Techniques and Safety, China National Packaging Corporation, Wuxi 214122, China;
    3. Key Laboratory of Food Advanced Manufacturing Equipment and Technology in Jiangsu Province, Wuxi 214122, China;
    4. Key Laboratory of Food Science and Technology, College of Food Science, Jiangnan University, Wuxi 214122, China
  • Online:2015-07-25 Published:2015-07-15
  • Contact: TANG Yali

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Abstract:

This paper investigated the changes in some properties of composite packaging materials containing polyethylene
terephthalate-poly propylene (PET-PE) including tensile properties and barrier properties, such as tensile strength, elongation
at break, and water vapor and air barrier properties after pressure-assisted thermal sterilization. Through data analysis, we
found that the properties of PET-PE composite packaging materials were decreased significantly by treatment with 450 MPa
at 40 or 50 ℃ as compared with those under other conditions, especially at 40 ℃.

Key words: pressure-assisted thermal sterilization, tensile properties, barrier properties, PET-PE composite material

CLC Number: