Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of microspheric polycarboxylic acid water-reducer
The invention discloses a preparation method of a microspheric polycarboxylic acid water-reducer. According to the preparation method, microspheres containing azide groups are prepared; then, alkynyl methoxypolyethylene glycol is prepared; and finally, microspheres containing azide groups and alkynyl methoxypolyethylene glycol undergo a click chemical reaction so as to obtain the microspheric polycarboxylic acid water-reducer. According to the method, product performance is adjusted by controlling particle size of microspheres containing azide groups, number of functions groups on the surface of the microspheres and molecular weight of methoxypolyethylene glycol. The reaction is rapid, and efficiency is high. The water-reducer is nontoxic and pollution-free, and operation is simple. The polycarboxylic acid water-reducer prepared by the method is a functional polycarboxylic acid high-efficiency water-reducer, and has advantages of strong concrete adaptability, high water-reducing rate, stable product performance and the like.
Preparation method of microspheric polycarboxylic acid water-reducer
The invention discloses a preparation method of a microspheric polycarboxylic acid water-reducer. According to the preparation method, microspheres containing azide groups are prepared; then, alkynyl methoxypolyethylene glycol is prepared; and finally, microspheres containing azide groups and alkynyl methoxypolyethylene glycol undergo a click chemical reaction so as to obtain the microspheric polycarboxylic acid water-reducer. According to the method, product performance is adjusted by controlling particle size of microspheres containing azide groups, number of functions groups on the surface of the microspheres and molecular weight of methoxypolyethylene glycol. The reaction is rapid, and efficiency is high. The water-reducer is nontoxic and pollution-free, and operation is simple. The polycarboxylic acid water-reducer prepared by the method is a functional polycarboxylic acid high-efficiency water-reducer, and has advantages of strong concrete adaptability, high water-reducing rate, stable product performance and the like.
Preparation method of microspheric polycarboxylic acid water-reducer
QIAN SHANSHAN (Autor:in) / SHI YU (Autor:in) / DING BEI (Autor:in) / WANG YI (Autor:in) / JIANG HAIDONG (Autor:in) / ZHENG CHUNYANG (Autor:in)
30.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
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
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