Use of tri-isopropanolamine in cement grinding aid

A technology of triisopropanolamine and cement grinding aid, which is applied in the field of cement additives and can solve the problems of high dependence on imports, poor strength in the later stage, and high cost
CN1749195AInactive Publication Date: 2006-03-22BAOJIA CHEM NANJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAOJIA CHEM NANJING
Publication Date
2006-03-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the application of triisopropanolamine in cement grinding aid. The cement grinding aid contains triisopropanolamine 40-100 wt%, triethanolamine 0-15 wt%, assistant 0-25wt%, and water 0-30wt%. The assistant is one or several kinds of carboxylic acid, lignosulfonate and alkay sulfonate. The cement grinding aid with triisopropanolamine has high grinding aiding effect, can raise the later stage strength of cement obviously, and has low cost and wide application foreground.
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Description

technical field

[0001] The invention relates to the application of triisopropanolamine in cement grinding aids, belonging to cement additives. Background technique

[0002] Cement grinding is a necessary process in cement production. It uses mechanical methods to make cement finer, which is a process of particle size change and mechanochemical change. During the crushing process of cement colliding with the ball forging medium, etc., the internal electric price bond of the particles is cut off, thereby forming a charge unit, generating static electricity, and the particles are easy to re-agglomerate into agglomerates or adsorb on the surface of the medium, so over-powdering will occur. Grinding or ball paste grinding phenomenon. Cement grinding aid is an additive with strong surface activity and dispersibility. It is easy to be adsorbed on the surface and gaps of the material, which can reduce the interfacial tension of the material, and at the same time play the role of lu...

Claims

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