PBST/TiO_(2)/CuO/Ag生物可降解食品包装薄膜的制备及性能  

Preparation and properties of PBST/TiO_(2)/CuO/Ag biodegradable food packaging films

作　　者：王怡博 解小玲 张杰[1,2] Wang Yibo;Xie Xiaoling;Zhang Jie(College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024;Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education,Taiyuan University of Technology,Taiyuan 030024;Shanxi Electronic Science and Technology Institute,Taiyuan 030024)

机构地区：[1]太原理工大学材料科学与工程学院,太原030024 [2]太原理工大学新材料界面科学与工程教育部重点实验室,太原030024 [3]山西电子科技学院,太原030024

出　　处：《化工新型材料》2023年第3期301-305,311,共6页New Chemical Materials

基　　金：山西省自然科学基金(201901D211091);山西省高等学校科技创新项目(201802022);江苏省丝绸工程重点实验室(KJS2058);江苏省自然科学基金(BK20190223)。

摘　　要：采用沉淀法制备三元抗菌剂TiO_(2)-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TiO_(2)-CuO-Ag NPs的复合膜(PTCA)。利用XRD、XPS和TEM对TiO_(2)-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。A ternary antibacterial agent(TiO_(2)-CuO-Ag NPs)was synthesized by precipitation method.The composite films(PTCA)of poly(butylene succinate-co-terephthalate)(PBST)and TiO_(2)-CuO-Ag NPs were prepared via solvent casting method.The crystal structure,the composition and valence state of elements,and morphology of TiO_(2)-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 

分 类 号：TB332[一般工业技术—材料科学与工程]