Preparation, Characterization and Application of a Low Water-Sensitive Artemisia sphaerocephala Krasch. Gum Intelligent Film Incorporated with Anionic Cellulose Nanofiber as a Reinforcing Component

被引：7

作者：

Liang, Tieqiang ^{[1
]}

Wang, Lijuan ^{[1
]}

机构：

[1] Northeast Forestry Univ, Key Lab Biobased Mat Sci & Technol, Minist Educ, Harbin 150040, Peoples R China

来源：

POLYMERS | 2020年 / 12卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Artemisia sphaerocephala Krasch; gum; anionic cellulose nanofiber; red cabbage extracts; pH-sensing film; low water-sensitivity; RED CABBAGE ANTHOCYANINS; RHEOLOGICAL PROPERTIES; ROSELLE ANTHOCYANINS; PH; INDICATOR; SURFACE; STARCH; ANTIOXIDANT; EXTRACT;

D O I：

10.3390/polym12010247

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A low-water-sensitive Artemisia sphaerocephala Krasch. gum (ASKG) based intelligent film was developed. Red cabbage extracts (RCE) was selected as a natural pH-sensitive indicator, and anionic cellulose nanofiber (ACNF) was added as a hydrophobic and locking host. The zeta potential, rheology, Fourier-transform infrared spectroscopy, X-ray diffractometry, and release results indicated that the RCE was locked by the ACNF via electrostatic interactions, moreover, broke the original complicated network and ordered arrangement of polymer molecules in the developed intelligent films. RCE addition decreased the tensile strength, oxygen, and water vapor barrier properties and light transmission of the developed intelligent films, while increasing the elongation at break. The films could respond to buffer solutions and NH3 through different color changes. The developed intelligent film was hydrophobic, which could precisely detect the freshwater shrimp freshness in real time via color changes, which indicated that the films have potential in intelligent packaging and gas-sensing label fields.

引用

页数：18