Improving air barrier, water vapor permeability properties of cellulose paper by layer-by-layer assembly of graphene oxide

被引:26
作者
Li, Yufeng [1 ,2 ]
Tang, Zongjun [1 ]
Wang, Wenlin [1 ]
Huang, Xiong [1 ]
Lv, Yanna [1 ]
Qian, Fang [3 ]
Cheng, Yi [1 ]
Wang, Haisong [1 ]
机构
[1] Dalian Polytech Univ, Sch Light Ind & Chem Engn, Dalian 116034, Liaoning, Peoples R China
[2] Hebei North Univ, Coll Agr & Forestry, Zhangjiakou 075000, Hebei, Peoples R China
[3] Dalian Polytech Univ, Sch Food Sci & Technol, Dalian 116034, Liaoning, Peoples R China
基金
芬兰科学院; 国家重点研发计划;
关键词
The modified paper; Graphene oxide; Layer-by-layer assembly; Low air barrier; High water vapor permeability;
D O I
10.1016/j.carbpol.2020.117227
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A paper-based packaging material with improved air barrier and water vapor permeability (WVP) properties was synthesized based on layer-by-layer assembly consisted of poly(ethylenimine) (PEI)/graphene oxide (GO) on a filter paper substrate. The effect of the pH of GO suspension on the zeta potential and air permeability (AP) of the modified paper was investigated in detail. The results indicated that the pH of GO suspension resulted in significant difference in the AP of the modified paper. Compare with the pristine paper, the AP of the modified paper with (PEI/GO)(10) multilayer films synthesized at pH 2.5 decreased by 99.99 %, while the WVP increased by 15.82 %. The modified paper as packaging material could prolong the shelf-life of oyster mushroom, indicating the modified paper has huge potential application on the preservation of agricultural products.
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页数:9
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