温度对保鲜膜透气和透湿性能的影响  

Effects of Temperature on Gas and Water Vapor Permeability of Preservative Film

作　　者：李家政[1] 毕大鹏[1] 李杨[1] 

机构地区：[1]国家农产品保鲜工程技术研究中心,天津300384

出　　处：《包装工程》2009年第10期8-10,20,共4页Packaging Engineering

基　　金：天津市自然科学基金项目(07JCYBJC12000);科技部科技支撑计划重点项目(2006BAD30B01)

摘　　要：在不同温度下测定聚乙烯、聚氯乙烯保鲜膜的氧气、二氧化碳渗透系数和水蒸气渗透率,并用Arrhenius公式关联温度与各个渗透系数和渗透率。根据Arrhenius公式,温度与各个渗透系数和渗透率之间具有很好的相关性,相关系数均在0.97以上。给出了温度与各个渗透系数和渗透率之间的关系式,可以计算出任何温度下聚乙烯保鲜膜的氧气、二氧化碳渗透系数和水蒸气渗透率。Oxygen, carbon dioxide, and water vapor permeability of PE and PVC film at different temperature was measured, and the permeability was related to temperature by Arrhenius formula as well. It was found that there are good relationships between the permeability and temperature with R more than 0. 97 according to Arrhenius formula. Equations between permeability of PE and PVC film and temperature were presented, which can be used to calculate the permeability at any temperature.

关 键 词：保鲜膜 透气 透湿 温度 

分 类 号：TS206[轻工技术与工程—食品科学] TB487[轻工技术与工程—食品科学与工程]