The influence of cellulose derivatives on water structure in gypsum

被引：24

作者：

Czaderna, Anna ^{[1
]}

Kocemba, Aleksandra ^{[2
]}

Kozanecki, Marcin ^{[1
]}

Mucha, Maria ^{[2
]}

Mroz, Patrycja ^{[2
]}

机构：

[1] Lodz Univ Technol, Fac Chem, Dept Mol Phys, Zeromskiego 116, PL-90924 Lodz, Poland

[2] Lodz Univ Technol, Fac Proc & Environm Engn, Dept Proc Thermodynam, Wolczanska 213, PL-90924 Lodz, Poland

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 160卷

关键词：

Gypsum; Setting process; 2-Hydroxyethyl methylcellulose; Hydroxypropyl methylcellulose; Hydroxypropyl cellulose; Water structure; MECHANICAL-PROPERTIES; CRYSTAL-STRUCTURE; PHASE;

D O I：

10.1016/j.conbuildmat.2017.11.062

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study the influence of cellulose derivatives modifiers: 2-hydroxyethyl methylcellulose (HEMC), hydroxypropyl methylcellulose (HPMC) and hydroxypropyl cellulose (HPC) on the gypsum setting process and their respective changes in water arrangement were analysed. IR spectroscopy revealed the differences in the water structure between the surface and the fracture of gypsum samples. In comparison to pure gypsum, the setting process is slower in the presence of cellulose derivatives as the hydrophilic polymer partially traps the water molecules. Through the comparison of IR, SEM, DSC and micro-mechanical measurements supramolecular model of gypsum structure containing cellulose derivatives which stabilized water clusters was proposed. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：628 / 638

页数：11

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