期刊
CERAMICS INTERNATIONAL
卷 49, 期 11, 页码 18825-18835出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2023.03.004
关键词
Xanthan gum; Water -ethanol solutions; Pseudo -gel systems
This study investigated the effect of ternary pseudo-gel systems on model mouldings as a complementary knowledge for formulating at the early stages of process design.
Hydrocolloids with xanthan gum are widely applied, especially considering the food and cosmetics industries. The water solution of xanthan gum demonstrates characteristics of pseudo-gel, with the relaxation time increasing exponentially as a function of time. The solubility and intermolecular association capacity of aqueous xanthan gum solutions can be influenced by various factors, especially alcohols, which promote conformational structural changes and lead to a gelation process. The study investigated the effect of pseudo-gel ternary systems of xanthan gum in water-ethanol solutions as thickening agents. Formulations differing in the mass proportion of xanthan gum and the solvent ratio were used to get model mouldings. Additionally, the rheological properties of slurries were investigated. The mass loss during drying under different conditions was evaluated (50 degrees C/72 h; 115 degrees C/45 min). The thermal stability of mouldings and pseudo-gel systems was examined with DSC-TG. The internal structure of the mouldings was assessed based on the absorption and porosity test for solvents differing in polarity. SEM imaging was used to visualise the internal structure. A hardness test with surface analysis using a profilometer was carried out. The influence of ternary pseudo-gel systems on mouldings was investigated to complement knowledge about formulating at the early stages of process design.
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。
推荐
暂无数据