包装材料氧气透过性方法简述  

Brief introduction of oxygen permeability of packaging materials

作　　者：宁月辉[1] 郭丽娜[1] 邢宇[1] 李月梅 NING Yue-hui;GUO Li-na;XING Yu;LI Yue-mei(Heilongjiang Institute of Quality Supervision and Testing,Harbin 150028,China;Qigihar Fifty-ninth Middle School,Qiqihar 161000,China)

机构地区：[1]黑龙江省质量监督检测研究院,哈尔滨150028 [2]齐齐哈尔市第五十九中学校,黑龙江齐齐哈尔161000

出　　处：《黑龙江科学》2018年第22期42-43,共2页Heilongjiang Science

摘　　要：塑料包装以其阻隔、耐介质、耐蒸煮性等良好性能被用于固态、液态等多种食品的包装,在一些领域已经取代了传统的金属包装,还可美化商品外观,降低生产成本,延长保质时间有,但其也存在一定缺陷,如材料的阻隔性不高,对食品中的活性物质影响显著,同时过高氧气透过量会引起袋装食物受潮、变质,破坏食品口感和质量,因此氧气透过量测试的准确性对于食品材质研制和开发具有重要的意义。详述了两类常见的透气性测量方法——压差法和等压法(库仑计法)的测试方法、优缺点及这两种方法的机理,并对两类方法进行了全面对比,以便为实际使用中进行合理选择提供参考。Plastic packaging has been used in solid and liquid food packaging because of its good properties such as barrier,medium resistance and cooking resistance.It has replaced traditional metal packaging in some fields.It can beautify the appearance of commodities,reduce production costs and prolong shelf life.However,it also has some defects,such as no barrier of materials.High oxygen permeability can cause dampness and deterioration of bagged food,and destroy the taste and quality of food.Therefore,the accuracy of oxygen permeability measurement is of great significance for the development of food materials.In this paper,two kinds of common methods for measuring permeability of air are described in detail:differential pressure method and equivalent pressure method(coulombarometer method),so as to provide reference for making reasonable choices in actual use.

关 键 词：氧气透过性 压差法 等压法 

分 类 号：TB482[一般工业技术—包装工程]