4.7 Article

Polyvinyl alcohol inclusion can optimize the sol-gel, mechanical and hydrophobic features of agar/konjac glucomannan system

期刊

CARBOHYDRATE POLYMERS
卷 277, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.118879

关键词

Konjac glucomannan; Agar; Polyvinyl alcohol; Practical features

资金

  1. National Natural Science Foundation of China [31801582, 32172240]

向作者/读者索取更多资源

This study reveals the effect of polyvinyl alcohol (PVA) on the practical features of agar/konjac glucomannan (KGM) system. Incorporating 6% PVA enhances the chain entanglements of the ternary solution, leading to increased viscosity, tensile strength, and hydrophobicity of the resulting film.
The practical features (e.g., sol-gel, mechanical and hydrophobic) of biopolymer systems are crucial for their materials applications. This work reveals how polyvinyl alcohol (PVA) inclusion affects the practical features of agar/konjac glucomannan (KGM) system. From rheological analysis, incorporating PVA (especially 6%) enhanced the chain entanglements of resulted ternary solution (A(70)K(24)P(6)) with stabilized sol-gel transition point. Such effect not only increased the zero-shear viscosity (ca. 1.5 times that of agar/KGM counterpart) and structural recovery degree of A(70)K(24)P(6) solution, but also caused reduced crystallites and simultaneously increased tensile strength, elongation at break and hydrophobicity for A(70)K(24)P(6) film from solution dehydration. This ternary film exhibited a tensile strength of ca. 105 MPa, an elongation at break of ca. 20%, and a water contact angle of ca. 97.6 degrees. Additionally, incorporating PVA almost unaffected the morphology of film fracture surface. These results are valuable for the design of agar/KGM systems with improved practical features.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据