聚乙烯醇基涂膜材料纳米SiO2改性对其成膜包装效能特性的影响

doi:10.7506/spkx1002-6630-201206049

食品科学 ›› 2012, Vol. 33 ›› Issue (6): 232-237.doi: 10.7506/spkx1002-6630-201206049

聚乙烯醇基涂膜材料纳米SiO2改性对其成膜包装效能特性的影响

雷艳雄，尹月玲，王佳媚，靳国锋，章建浩*

南京农业大学食品科技学院，国家肉品质量与安全控制工程技术研究中心，教育部肉品加工与质量控制重点实验室，农业部农畜产品加工与质量控制重点开放实验室

出版日期:2012-03-25 发布日期:2012-03-03
基金资助:
江苏省科技攻关项目(BE2007320)

Effect of PVA-Based Coating Material Modified by Nano-SiO2 on Properties of Film-forming Package

LEI Yan-xiong，YIN Yue-ling，WANG Jia-mei，JIN Guo-feng，ZHANG Jian-hao*

(Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Key Laboratory of Food Processingand Quality Control, Ministry of Agriculture, National Center of Meat Quality and Safety Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China)

Online:2012-03-25 Published:2012-03-03

摘要/Abstract

摘要： 采用纳米SiO2对聚乙烯醇(PVA)基复合涂膜包装材料进行改性，通过测定PVA基纳米复合涂膜材料的成膜透湿率、吸水率、透光率、透气性以及抑菌效果，研究纳米SiO2对其成膜包装效能特性的影响。结果表明：纳米SiO2改性PVA基复合膜的透湿率(18.78g/(m2 ·d))比未改性PVA基复合膜(27.39g/(m2 ·d))降低31.43%，吸水率(1.40%)降低了35.34%，透O2率(0.055g/(m2 ·d)和透CO2率(0.174g/(m2 ·d))分别降低了17.91%和18.31%，且复合膜的抑菌性能也得到提高。纳米SiO2改性可显著提高PVA基纳复合涂膜材料的阻隔性，尤其是阻湿阻水性等成膜包装效能特性，改善其食品保鲜包装的应用效果。

关键词: 聚乙烯醇, 纳米SiO2, 复合改性, 成膜透湿率, 透气性

Abstract: Due to the hydrophilic property, the application of poly vinyl alcohol (PVA) in food package is greatly limited. In this paper, the effect of PVA-based composite film modified by adding nano-SiO2 on packaging efficacy was evaluated by measuring vapor transmission rate, water-absorbing rate, transmittance, gas permeability and antibacterial capability. The results showed that vapor transmission rate (18.78 g/(m2 ·d)), water-absorbing rate (1.40%) of modified composite film decreased by 35.34%; O2 and CO2 penetration (0.055 g/(m2 ·d) and 0.174 g/(m2 ·d)) of modified composite film decreased by 17.91% and 18.31%, respectively, compared with those of PVA-based composite film without modification. Moreover, the antibacterial capability of PVA-based composite film was also improved after the modification with nano-SiO2. Therefore, modification with nano-SiO2 can significantly enhance the barrier performance, especially vapor barrier performance of PVA-based composite film, and consequently improve the application efficiency in food package.

Key words: poly vinyl alcohol (PVA), nano-SiO2, composite film modification, vapor transmission rate of composite film, gas permeability

中图分类号:

TS206.4

雷艳雄，尹月玲，王佳媚，靳国锋，章建浩. 聚乙烯醇基涂膜材料纳米SiO2改性对其成膜包装效能特性的影响[J]. 食品科学, 2012, 33(6): 232-237.

LEIYan-xiong，YINYue-ling，WANGJia-mei，JINGuo-feng，ZHANGJian-hao. Effect of PVA-Based Coating Material Modified by Nano-SiO2 on Properties of Film-forming Package[J]. FOOD SCIENCE, 2012, 33(6): 232-237.

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聚乙烯醇基涂膜材料纳米SiO2改性对其成膜包装效能特性的影响

Effect of PVA-Based Coating Material Modified by Nano-SiO2 on Properties of Film-forming Package

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