Preparing method for aminosulfonic water-reducing agent
A technology of aminosulfonic acid and diaminobenzenesulfonic acid, applied in the field of water reducing agent, can solve problems such as difficulty in controlling concrete slump loss, excessive retardation and the like
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Embodiment 1
[0008] Example 1, add 200g of water to the reaction kettle, add 40g of phenol, 70g of p-aminobenzenesulfonic acid, and 5g of urea, heat up to 90°C, add 60g of condensing agent formaldehyde, stir and react for 6 hours, then add 5g of The basic conditioner and 1 g of triacetamide were cooled and stirred to room temperature to obtain a liquid water reducer.
Embodiment 2
[0009] Example 2, add 200g of water to the reaction kettle, add 30g of phenol, 80g of sulfanilate, and 5g of urea, heat up to 95°C, add 70g of condensing agent formaldehyde, stir and react for 8 hours, then add 8g Alkaline conditioner and 1g of triacetamide, cooled and stirred to room temperature to obtain a liquid water reducer.
[0010] Below is the test using the superplasticizer produced by the present invention to illustrate the present invention;
[0011] The sulfamate water reducer is represented by DB in the table.
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