Influence of synthetic polymers on the mechanical properties of hardened β-calcium sulfate hemihydrate plasters

被引：43
作者：
Zhou, Ping-ping [1 ]
Wu, Hua-chun [1 ]
Xia, Yong-mei [1 ]
机构：
[1] Jiangnan Univ, Sch Chem & Mat Engn, Wuxi 214122, Jiangsu, Peoples R China
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2016年 / 33卷
关键词：
Calcium sulfate hemihydrate; Gypsum; Polymer; Mechanical strength; Hydration; GYPSUM PLASTER; HYDRATION; CRYSTALLIZATION; COMPOSITES; DIHYDRATE; STRENGTH;
D O I：
10.1016/j.jiec.2015.10.024
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polymers have been used to modulate mechanical strengths and water absorption of construction or modeling materials as like gypsum. To understand the structure-performance relationship of polymers in hydration and properties of gypsum plaster, several designed carboxyl polyether sulfonates were investigated with comparison of some commercial polymers. It is found that bending strength of the hardened p-hemihydrate plaster is inversely proportional to number of carboxyl groups in the polymer that retards hydration. The mechanical strengths enhancement is coincident with acceleration of initial hydration, while decrease of mechanical strengths happened with retard of the hydration. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：355 / 361
页数：7
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