Effect of nano-TiO2 on the physical, mechanical and optical properties of pullulan film

被引：83

作者：

Liu, Yaofa ^{[1
]}

Liu, Yuanyuan ^{[1
]}

Han, Ke ^{[1
]}

Cai, Ying ^{[1
]}

Ma, Meihu ^{[1
]}

Tong, Qunyi ^{[2
]}

Sheng, Long ^{[1
]}

机构：

[1] Huazhong Agr Univ, Coll Food Sci & Technol, Natl Res & Dev Ctr Egg Proc, Wuhan 430070, Hubei, Peoples R China

[2] Jiangnan Univ, Sch Food Sci & Technol, State Key Lab Food Sci & Technol, Wuxi, Jiangsu, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2019年 / 218卷

基金：

中国国家自然科学基金;

关键词：

Polysaccharide film; Nano-TiO2; Pullulan; Nanocomposite; NANOCOMPOSITE FILMS; EDIBLE FILMS; ANTIBACTERIAL ACTIVITY; BIODEGRADABLE FILMS; TIO2; NANOPARTICLES; BARRIER PROPERTIES; PROTEIN; FERMENTATION; GELLAN;

D O I：

10.1016/j.carbpol.2019.04.073

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this study, effects of nano-TiO2 on the microstructural, physical, mechanical and optical properties of pullulan films were investigated. The results showed that the addition of nano-TiO2 improved the water vapor barrier properties of the film due to the tortuous path formed by nano-TiO2. When the concentration of nano-TiO2 was 0.04 g/100 mL, the tensile strength of the film showed a maximum value (15.99 MPa). The elongation at break of the film continued to decrease with the increase of nano-TiO2 The TEM analysis showed that higher concentration of nano-TiO2 would cause greater aggregation. Meanwhile, the results of FTIR and low-field NMR indicated that the miscibility between pullulan and nano-TiO2 was due to the formation of intermolecular hydrogen bonds during film formation. Furthermore, the addition of nano-TiO2 significantly improved the film barrier properties to ultraviolet light.

引用

页码：95 / 102

页数：8

共 50 条

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