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Macromolecular crystal modifier for preparing alpha-type high-strength gypsum and preparation method thereof
The invention discloses a high-molecular crystal modifier for preparing alpha-type high-strength gypsum and a preparation method thereof.The molecular chain of the prepared high-molecular crystal modifier contains a large number of succinic acid structures, the distance between two carboxyl groups is matched with the distance between Ca < 2 + > ions on the (111) crystal face of alpha-semi-hydrated gypsum, and a stable chelating structure is formed; the adsorption and crystal adjusting efficiency is high, and is obviously superior to that of the conventional polyacrylic acid crystal modifier through comparison; the polymer crystal modifier prepared by the invention can be directly used after being separated and purified, and also can be matched with other crystal modifiers for use.
本发明公开了一种用于制备α型高强石膏的高分子转晶剂及其制备方法，本发明所制备的高分子转晶剂的分子链中含有的大量丁二酸结构，两个羧基的间距与α半水石膏的(111)晶面上Ca2+离子间距相匹配，形成稳定的螯合结构，吸附和调晶效率高，经过对比，明显优于目前常用的聚丙烯酸转晶剂；本发明所制备的高分子转晶剂经分离提纯后可以直接使用，也可以和其他转晶剂配合使用。
Macromolecular crystal modifier for preparing alpha-type high-strength gypsum and preparation method thereof
The invention discloses a high-molecular crystal modifier for preparing alpha-type high-strength gypsum and a preparation method thereof.The molecular chain of the prepared high-molecular crystal modifier contains a large number of succinic acid structures, the distance between two carboxyl groups is matched with the distance between Ca < 2 + > ions on the (111) crystal face of alpha-semi-hydrated gypsum, and a stable chelating structure is formed; the adsorption and crystal adjusting efficiency is high, and is obviously superior to that of the conventional polyacrylic acid crystal modifier through comparison; the polymer crystal modifier prepared by the invention can be directly used after being separated and purified, and also can be matched with other crystal modifiers for use.
本发明公开了一种用于制备α型高强石膏的高分子转晶剂及其制备方法，本发明所制备的高分子转晶剂的分子链中含有的大量丁二酸结构，两个羧基的间距与α半水石膏的(111)晶面上Ca2+离子间距相匹配，形成稳定的螯合结构，吸附和调晶效率高，经过对比，明显优于目前常用的聚丙烯酸转晶剂；本发明所制备的高分子转晶剂经分离提纯后可以直接使用，也可以和其他转晶剂配合使用。
Macromolecular crystal modifier for preparing alpha-type high-strength gypsum and preparation method thereof
一种用于制备α型高强石膏的高分子转晶剂及其制备方法
YUAN HEXU (author) / FAN WEIWEI (author) / CHEN ZIHAN (author) / ZHOU JIAHAO (author) / LI ZHUO (author)
2024-09-13
Patent
Electronic Resource
Chinese
IPC:
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
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