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Preparation method of slow-release polycarboxylate superplasticizer
The invention discloses a preparation method of a slow-release polycarboxylate superplasticizer. Cyclodextrin adopting a stereo conical structure is introduced in the later period of a polymerization reaction, the cyclodextrin has amphipathy due to the hydrophilic external structure and the hydrophobic internal structure of the cyclodextrin, the cyclodextrin can form hydrogen bonds with polycarboxylate superplasticizer polyoxyethylene ether side chains, so that adsorption of superplasticizer molecules to cement particle surfaces is limited within a certain period, and the prepared product has the characteristics of dispersing performance and slow release.
Preparation method of slow-release polycarboxylate superplasticizer
The invention discloses a preparation method of a slow-release polycarboxylate superplasticizer. Cyclodextrin adopting a stereo conical structure is introduced in the later period of a polymerization reaction, the cyclodextrin has amphipathy due to the hydrophilic external structure and the hydrophobic internal structure of the cyclodextrin, the cyclodextrin can form hydrogen bonds with polycarboxylate superplasticizer polyoxyethylene ether side chains, so that adsorption of superplasticizer molecules to cement particle surfaces is limited within a certain period, and the prepared product has the characteristics of dispersing performance and slow release.
Preparation method of slow-release polycarboxylate superplasticizer
LI HUIQUN (Autor:in) / YAO YAN (Autor:in) / LI TING (Autor:in) / WU MINGHUI (Autor:in) / WANG JIAN (Autor:in) / ZHAO HAIYANG (Autor:in) / HAO LIGUO (Autor:in) / ZHU AIHUA (Autor:in) / LI XIAONING (Autor:in) / ZHU YUXUE (Autor:in)
18.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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