化工新型材料

化工新型材料 ›› 2023, Vol. 51 ›› Issue (3) : 301-305. DOI: 10.19817/j.cnki.issn1006-3536.2023.03.053

开发与应用

PBST/TiO₂/CuO/Ag生物可降解食品包装薄膜的制备及性能

^1,2

^1,2*

作者信息 +

Preparation and properties of PBST/TiO₂/CuO/Ag biodegradable food packaging films

Wang Yibo^1,2, Xie Xiaoling³, Zhang Jie^1,2

Author information +

文章历史 +

Received		Published
2021-11-29		2023-03-20
Issue Date	Revised Date
2023-03-29	2021-11-29

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摘要

采用沉淀法制备三元抗菌剂TiO₂-CuO-Ag NPs。通过溶液浇铸法制备了聚丁二酸-共-对苯二甲酸丁二醇酯(PBST)与TiO₂-CuO-Ag NPs的复合膜(PTCA)。利用XRD、XPS和TEM对TiO₂-CuO-Ag NPs抗菌剂的晶体结构、元素组成和价态及形貌进行表征。并对复合膜的力学性能、紫外阻隔性能、水蒸汽透过率及抗菌性能进行了评估。结果表明,复合膜PTCA的力学性能、紫外阻隔性能、水蒸汽阻隔性能和抗菌性能都得到了大幅提升。其中3%含量的抗菌剂制得的复合膜的性能最佳,在食品包装领域有巨大的应用前景。

Abstract

A ternary antibacterial agent (TiO₂-CuO-Ag NPs) was synthesized by precipitation method.The composite films (PTCA) of poly (butylene succinate-co-terephthalate) (PBST) and TiO₂-CuO-Ag NPs were prepared via solvent casting method.The crystal structure,the composition and valence state of elements,and morphology of TiO₂-CuO-Ag NPs were characterized by XRD,XPS and TEM.The mechanical properties,UV-Vis light barrier property,water vapor permeability and antibacterial properties of PTCA were further evaluated.The results showed that the mechanical properties,UV-Vis light barrier property,water vapor permeability and antibacterial properties of PTCA were significantly improved.Based on all the analysis,the composite film prepared with 3% content of antibacterial agent had the best performance,which had great application prospects in the field of food packaging.

关键词

聚丁二酸-共-对苯二甲酸丁二醇酯 / 二氧化钛 / 氧化铜 / 银 / 抗菌活性 / 食品包装

Key words

poly (butylene succinate-co-terephthalate) / titanium dioxide / copper oxide / silver / antibacterial activity / food packaging

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PBST/TiO₂/CuO/Ag生物可降解食品包装薄膜的制备及性能[J]. 化工新型材料, 2023, 51(3): 301-305 DOI:10.19817/j.cnki.issn1006-3536.2023.03.053

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