自发式气调共混膜的制备及性能分析

doi:10.16085/j.issn.1000-6613.2018-0151

化工进展 ›› 2018, Vol. 37 ›› Issue (12): 4799-4805.DOI: 10.16085/j.issn.1000-6613.2018-0151

自发式气调共混膜的制备及性能分析

何家鹏¹, 何其¹, 董浩¹, 杨小翠¹, 李煌², 肖凯军¹

1 华南理工大学食品科学与工程学院, 广东广州 510640;
2 广州市和兴隆食品科技股份有限公司, 广东广州 510440

收稿日期:2018-01-18 修回日期:2018-06-20 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: 肖凯军,教授。
作者简介:何家鹏(1994-),男,硕士研究生。
基金资助:
广东省科技装备动员项目（x2skB2160440）、广东省级科技计划（x2skB2160320）及广州市科技计划（x2qsB2150780）项目。

Preparation and properties of self-balancing blend membrane as plastic wrap packaging

HE Jiapeng¹, HE Qi¹, DONG Hao¹, YANG Xiaocui¹, LI Huang², XIAO Kaijun¹

1 College of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China;
2 Guangzhou Harmony Food Science and Technology Co., Ltd., Guangzhou 510440, Guangdong, China

Received:2018-01-18 Revised:2018-06-20 Online:2018-12-05 Published:2018-12-05

摘要/Abstract

摘要： 以磺化聚醚醚酮（SPEEK）和聚偏氟乙烯（PVDF）为原材料，制备自呼吸式气调共混膜，并对其气调特性及保藏效果进行分析。利用SEM、DSC等手段研究SPEEK与PVDF之间的相容性，杂合制备共混膜，通过一系列测试手段分析共混膜的孔径分布、透气性等，并应用于花椰菜的气调保藏。结果表明：通过改变SPEEK与PVDF的混合比例，可以制备出不同透气性的气调膜。不同比例的共混膜对纯CO₂的渗透系数范围为1.05×10^-10~1.495×10^-9cm³·cm/（cm²·s·cmHg），对纯O₂的渗透系数范围为0.19×10^-10~2.97×10^-10cm³·cm/（cm²·s·cmHg）。将所制备的共混膜应用于花椰菜的气调保藏时，气调包装内CO₂浓度在3.7~9.1h后达到平衡状态，终浓度保持在体积分数4.4%~7.8%；O₂的浓度在5.5~9.6h后到达平衡状态，终浓度保持在体积分数4.2%~9.2%，该气体组分适宜花椰菜的长期气调保鲜。根据膜的调节范围和保藏实验可推测，该共混膜可应用于多种新鲜果蔬产品的自发性气调保藏。

关键词: 气调包装, 选择性, 膜, 分离, 聚合物加工, 果蔬保鲜

Abstract: Sulfonated poly ether ether ketone(SPEEK) and polyvinylidene fluoride(PVDF) were used to prepare self-breathing modified atmosphere blend membranes, and their properties and preservation effects were analyzed. The modified atmosphere membrane was fabricated by heterozygous method and the compatibility between SPEEK with PVDF was studied by SEM and DSC. The pore size distribution and permeability of the membranes were analyzed by a series of test methods. The membrane were then applied to the modified atmosphere storage of broccoli. The results show that different gas permeability blend membranes can be prepared by changing the mixing ratio of SPEEK and PVDF. The permeabilities of the membranes with different proportions of SPEEK for pure CO₂ and O₂ were in the range of 1.05×10^-10-1.495×10^-9cm³·cm/(cm²·s·cmHg) and 1.05×10^-10~1.495×10^-9cm³·cm/(cm²·s·cmHg), respectively. When the membranes were applied to the modified atmosphere storage of cauliflower, the concentration of CO₂ in the atmosphere package reached an equilibrium state after 3.7-9.1h and the final concentrations were maintained at 4.4%-7.8% (volume fraction), while that for O₂ was 4.2%-9.2%(volume fraction) after 5.5-9.6h. This gas composition was suitable for the modified atmosphere storage cauliflower. From the results, it can be speculated that the membranes can be applied to the modified atmosphere storage of many other fresh fruits and vegetables.

Key words: modified atmosphere packaging, selectivity, membrane, separation, polymer processing, fruits and vegetables preservation

中图分类号:

TQ028.8

何家鹏, 何其, 董浩, 杨小翠, 李煌, 肖凯军. 自发式气调共混膜的制备及性能分析[J]. 化工进展, 2018, 37(12): 4799-4805.

HE Jiapeng, HE Qi, DONG Hao, YANG Xiaocui, LI Huang, XIAO Kaijun. Preparation and properties of self-balancing blend membrane as plastic wrap packaging[J]. Chemical Industry and Engineering Progress, 2018, 37(12): 4799-4805.

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自发式气调共混膜的制备及性能分析

Preparation and properties of self-balancing blend membrane as plastic wrap packaging

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