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Effect of TiO2 and ZnO on Thin Film Properties of PET/PBS Blend for Food Packaging Applications

机译：TiO2和ZnO对食品包装应用PET / PBS混合物薄膜特性的影响

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This research was aimed to investigate the effect of TiO2 and ZnO along with its ratio on physical, thermal, mechanical and antibacterial properties of PET-poly(ethylene terephthalate) and PBS-poly(butylene succinate) blend thin film. The content of TiO2 and ZnO was added at 1% and 2%wt on PET/PBS (ratio of 90:10) blend thin film because the ratio of PET and PBS of 90:10 was found to be the best in clarity. The melting temperature of PET/PBS blends were completely separated due to immiscibility of polymer blend. The addition of ZnO made film more transparency than TiO2 because ZnO particles were physically bigger than TiO2 particles. In addition, TiO2 increased thermal stability of PET/PBS blends. The addition of TiO2 and ZnO would not significantly increase tensile strength, young's modulus and percentage elongation at break. In term of antibacterial activity, PET/PBS blend thin film with TiO2 was more active against both E.coli and S.aureus than the one with ZnO.
机译：该研究旨在探讨TiO2和ZnO的影响以及其对PET-聚（对苯二甲酸乙二醇酯）和PBS-聚（丁二酸酯）共混薄膜的物理，热，机械和抗菌性质的比率。 在PET / PBS（比率为90:10）的1％和2％wt中加入TiO 2和ZnO的含量，因为发现了90:10的PET和PBS的比例是最明确的。 由于聚合物共混物不混溶，完全分离PET / PBS共混物的熔化温度。 由于ZnO颗粒在物理上大于TiO 2颗粒，因此加入ZnO制造的薄膜比TiO 2更透明。 此外，TiO2增加了PET / PBS共混物的热稳定性。 加入TiO2和ZnO不会显着增加拉伸强度，杨氏模量和断裂伸长率。 在抗菌活性的术语中，PET / PBS与TiO 2混合薄膜对E.coli和S.aureus更活跃而不是用ZnO。

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