Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified lignosulfonate water-reducing agent and preparation method thereof
The invention discloses a modified lignosulfonate water-reducing agent and a preparation method thereof. Firstly, lignosulfonate is oxidized by an oxidizing agent so as to improve the chemical activity of the lignosulfonate, and then the modified lignosulfonate is polymerized with unsaturated carboxylic acid and salts thereof, allyl glucose, and vinyl phosphonic acid and salts thereof to achieve a purpose of chemical modification, so that the modified sodium lignosulfonate is connected to a carboxyl group, a glycosyl group, a phosphonic group and other anionic groups for further improving the performance of a product. The modified lignosulfonate water-reducing agent is mainly used for improving the performance of concrete.
Modified lignosulfonate water-reducing agent and preparation method thereof
The invention discloses a modified lignosulfonate water-reducing agent and a preparation method thereof. Firstly, lignosulfonate is oxidized by an oxidizing agent so as to improve the chemical activity of the lignosulfonate, and then the modified lignosulfonate is polymerized with unsaturated carboxylic acid and salts thereof, allyl glucose, and vinyl phosphonic acid and salts thereof to achieve a purpose of chemical modification, so that the modified sodium lignosulfonate is connected to a carboxyl group, a glycosyl group, a phosphonic group and other anionic groups for further improving the performance of a product. The modified lignosulfonate water-reducing agent is mainly used for improving the performance of concrete.
Modified lignosulfonate water-reducing agent and preparation method thereof
LIU JIANFENG (Autor:in) / ZHENG FUER (Autor:in) / CHEN ZHENXI (Autor:in) / ZHENG WENGUO (Autor:in) / LIU MINGHUA (Autor:in) / SU QIANDE (Autor:in)
13.05.2015
Patent
Elektronische Ressource
Englisch
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
/
C04B
Kalk
,
LIME
/
C08H
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
,
Derivate von natürlichen makromolekularen Verbindungen
Modified lignosulfonate water reducing agent and preparation method thereof
| Europäisches Patentamt | 2021
Preparation method of lignosulfonate high-performance modified water reducing agent
| Europäisches Patentamt | 2021
Modified lignosulfonate superplasticizer and preparation method thereof
| Europäisches Patentamt | 2016
| British Library Conference Proceedings | 2013