The Effect of Water and Relative Humidity on the Properties of Starch-Based Packaging Films
(0) The mechanical properties of starch-based films were investigated as a function of water and relative humidity (RH) toidentify the maximum level at which the films can be viably used as packaging materials. The films were a commercially obtainedthermoplastic starch blended with an aliphatic polyester (APTPS) and a film prepared using a chemically-modified high-amylosecorn-based thermoplastic starch (TPS). The conditioning of TPS films at various RH levels resulted in absorption of moisture thatwas significant at the higher RH levels. Conversely, the APTPS films did not absorb moisture to any major extent. The mechanicalproperties of TPS films concurrently declined at high water concentration and RH, while a decline in the mechanical properties ofAPTPS film could not be detected.
Kuorwel K.Kuorwel Stephen W.Bigger Marlene J.Cran Kees Sonneveld Joseph Miltz
School of Engineering and Science,Victoria, Australia Institute for Sustainability and Innovation Victoria University, Melbourne,Victoria, Australia KS PackExpert & Associates Mansfield, Victoria, Australia Department of Biotechnology and Food Engineering Technion-Israel Institute of Technology, Haifa, Isr
国际会议
The 17th IAPRI World Conference on Packaging(第17届世界包装大会)
天津
英文
627-630
2010-10-12（万方平台首次上网日期，不代表论文的发表时间）