Condensation method for preparation of poly carboxylic acid water-reducing agent
A technology of water reducing agent and polycarboxylic acid, which is applied in the concentrated field of preparing polycarboxylic acid water reducing agent, can solve the problems of high energy consumption, high cost, long time and the like, and achieves low energy consumption, low production cost, inorganic The effect of salt reduction
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[0030] Example: A concentration method in the preparation of polycarboxylic acid water-reducing agent. In the process of producing polycarboxylic acid water-reducing agent polymer, if the solid content of the polymerized monomer is 20%, after the polymerization reaction The solid content of the polycarboxylic acid water reducing agent is also about 20%, and the temperature of the reactant is generally 70-100°C. When the polymer synthesis process is over, put the polymer water-containing system in the original reactor or transfer it to other containers, stop stirring to make the whole system stand still (still stop), and begin to cool down at the same time. During the cooling process, the polymer It will begin to separate from the water system and precipitate in the lower part of the container. When the precipitation is complete, the solid content of the concentrated polymer precipitated in the lower part of the container is more than 50%, and the solid content of the polymer in th...
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