文章摘要
王蕾,陈晨伟,戴方沁,陈文君,杨福馨,谢晶.PBAT/ZSM-5分子筛共混薄膜的制备与性能[J].包装工程,2021,42(21):86-92.
WANG Lei,CHEN Chen-wei,DAI Fang-qin,CHEN Wen-jun,YANG Fu-xin,XIE Jing.Preparation and Properties of PBAT/ZSM-5 Zeolite Blending Film[J].Packaging Engineering,2021,42(21):86-92.
PBAT/ZSM-5分子筛共混薄膜的制备与性能
Preparation and Properties of PBAT/ZSM-5 Zeolite Blending Film
投稿时间:2021-02-07  
DOI:10.19554/j.cnki.1001-3563.2021.21.012
中文关键词: 聚己二酸-对苯二甲酸丁二酯  ZSM-5分子筛  薄膜  气体选择透过性
英文关键词: poly (butylene adipate-co-butylene terephthalate)  ZSM-5 zeolite  film  gas permselectivity
基金项目:国家重点研发计划(2018YFD0400701);上海市科委公共服务平台建设项目(19DZ2284000);上海市绿叶菜产业体系建设项目;上海市大学生创新项目(A1-2042-16-0003)
作者单位
王蕾 上海海洋大学 食品学院上海 201306 
陈晨伟 上海海洋大学 食品学院上海 201306
上海冷链装备性能与节能评价专业技术服务平台上海 201306
农业部冷库及制冷设备质量监督检验测试中心上海 201306
食品科学与工程国家级实验教学示范中心上海海洋大学上海 201306 
戴方沁 上海海洋大学 食品学院上海 201306 
陈文君 上海海洋大学 食品学院上海 201306 
杨福馨 上海海洋大学 食品学院上海 201306
上海冷链装备性能与节能评价专业技术服务平台上海 201306
农业部冷库及制冷设备质量监督检验测试中心上海 201306
食品科学与工程国家级实验教学示范中心上海海洋大学上海 201306 
谢晶 上海海洋大学 食品学院上海 201306
上海冷链装备性能与节能评价专业技术服务平台上海 201306
农业部冷库及制冷设备质量监督检验测试中心上海 201306
食品科学与工程国家级实验教学示范中心上海海洋大学上海 201306 
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中文摘要:
      目的 以聚己二酸-对苯二甲酸丁二酯(PBAT)为基材,制备PBAT/ZSM-5分子筛共混薄膜,研究分子筛含量对薄膜性能的影响。方法 通过共混熔融挤出流延法制得含不同质量分数ZSM-5分子筛(0%,1%,3%,5%,7%)的PBAT薄膜,测定分析不同分子筛质量分数对薄膜的颜色、透明性、结构、气体阻隔性、力学性能等性能的影响。结果 随着分子筛质量分数的增加,透明性和断裂伸长率显著降低,抗拉强度先增加后降低,质量分数为1%分子筛的薄膜抗拉强度相对较大,较纯PBAT薄膜增加了12.34%;薄膜氧气透过性能整体上呈上升趋势,二氧化碳透过性和CO2/O2透过比均逐渐增加,水蒸气透过性显著降低,与纯PBAT薄膜相比,质量分数为7%分子筛PBAT薄膜的氧气和二氧化碳透过系数分别增加了18.48%,33.51%,水蒸气透过系数下降了43.28%,CO2/O2透过比由原来的8.84增加到9.96;薄膜表面和横截断面均变得粗糙,局部区域有团聚现象,且随分子筛含量的增加而变得明显。结论 ZSM-5分子筛的少量加入,可以影响PBAT薄膜力学性能,降低其水蒸气透过性,调节薄膜的气体选择透过性,为其应用于生鲜果蔬包装提供基础。
英文摘要:
      The work aims to prepare ZSM-5 zeolite blending film with poly (butylene adipate-co-butylene terephthalate) (PBAT) as substrate to study the effect of ZSM-5 zeolite content on the properties of films. PBAT films containing ZSM-5 zeolite with different concentrations (0%, 1%, 3%, 5% and 7%) were prepared by blending melt extrusion and casting method. The effect of ZSM-5 zeolite on color, transparency, structure, gas barrier properties and mechanical properties of the films were studied. With the increase of ZSM-5 zeolite, the transparency and elongation at break of the PBAT films decreased significantly; the tensile strength increased firstly and then decreased. When the concentration of ZSM-5 zeolite was 1%, the tensile strength of the film was relatively larger, which increased by 12.34% compared with the pure PBAT film. The oxygen permeability of the films showed an overall upward trend. The carbon dioxide permeability and ratio of CO2/O2 increased gradually. The water vapor permeability reduced significantly. Compared with the pure PBAT film, the oxygen and carbon dioxide transmission coefficient of the PBAT film containing 7% ZSM-5 zeolite increased by 18.48% and 33.51% respectively; the water vapor transmission coefficient decreased by 43.28%, and the ratio of CO2/O2 increased from 8.84 to 9.96. Both the surface and cross-section of PBAT films became rough, and the agglomeration of particles were partly observed, which became obvious with the increase of ZSM-5 zeolite. The low addition of ZSM-5 zeolite affects the mechanical properties of PBAT films, improves their water vapor barrier property, adjusts the gas permselectivity of the film, and provides a basis for its application in fresh fruits and vegetables packaging.
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