Detergent assistant with fumaric acid serving as main synthesis raw material and preparation method of detergent assistant

Abstract

The invention discloses a detergent assistant with fumaric acid serving as a main synthesis raw material and a preparation method of the detergent assistant. According to the method, fumaric acid is used for replacing maleic anhydride used in the conventional synthesized detergent assistant; in the polymerization reaction of fumaric acid and crylic acid, hydrolysis is not required, so that the reaction time is shortened, and the energy consumption is reduced. Meanwhile, in the preparation method, water is used as a solvent instead of a toxic and harmful solvent; after being distilled, the water is not recycled, and no solvent is retained in the product; the production process is simplified, the energy consumption is low, and the equipment utilization rate is high; the preparation method is suitable for large-scale production.

Description

technical field [0001] The invention relates to a builder, in particular to a builder with fumaric acid as the main synthetic raw material and a preparation method thereof. Background technique [0002] Polycarboxylate polymers have excellent chelating and dispersing effects, and are widely used in the fields of detergents and water treatment. In the field of washing, they mainly have dispersing effects. As a washing aid, it should have the following characteristics: alkaline buffering effect, even if there is a small amount of acidic substances, the pH of the washing liquid will not change significantly due to the action of the aid, and there is still a strong decontamination effect; it has the ability to make dirt Disperse in water and prevent dirt from reattaching and depositing on fabrics; polycarboxylate polymers have a large number of carboxylate groups on the side chains, so they have strong particle chelating ability and soften hard water ability. In view of the exc...

AI Technical Summary

Problems solved by technology

As a builder, polyacrylic acid polymer has strong chelating power, but poor dispersing power, which cannot better prevent the redeposition of eluted dirt, and its application in the field of builders is limited; maleic anhydride-acrylic acid copolymer Compared with polyacrylic acid, the dispersing force is greatly improved, which can prevent the redeposition of dirt and improve the cleaning performance, but the reactivity is low, and the addition efficiency of copolymerization with acrylic acid is low, and the cleaning performance cannot be further improved to a certain extent. thus affecting the washing effect

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