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A kind of preparation method and application of hyperbranched polyethyleneimine copolymer water treatment agent

A polyethyleneimine copolymer, polyethyleneimine technology, applied in chemical instruments and methods, water/sludge/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., can solve water eutrophication, etc. problem, to achieve good bactericidal performance, good corrosion inhibition performance, and excellent corrosion inhibition effect

Inactive Publication Date: 2018-04-24
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a preparation method and application of a hyperbranched polyethyleneimine copolymer water treatment agent, which solves the need to add various Drugs that can easily lead to eutrophication of water bodies

Method used

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  • A kind of preparation method and application of hyperbranched polyethyleneimine copolymer water treatment agent
  • A kind of preparation method and application of hyperbranched polyethyleneimine copolymer water treatment agent
  • A kind of preparation method and application of hyperbranched polyethyleneimine copolymer water treatment agent

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Embodiment 1

[0028] This embodiment provides a kind of preparation method of hyperbranched polyethyleneimine copolymer multifunctional water treatment agent:

[0029] Step 1, take by weighing 4.7 grams of maleic acid, 2.6 grams of sodium hydroxide, add 10 grams of water to dissolve, then add hyperbranched polyalkyleneimine solution (get 2.7 grams of hyperbranched polyethyleneimine, add 5 grams of water to dissolve), Under the condition of microwave, the reaction was heated for 1 h. After the reaction was completed, it was lowered to room temperature to obtain a light yellow solution, which was dried to obtain hydroxylated hyperbranched polyethyleneimine. The microwave field for microwave heating is a microwave field of 2450MHz, the microwave power is 500W, the microwave radiation time is 30-40min, and the reaction temperature is 70°C-80°C.

[0030] Step 2, add hydroxylated hyperbranched polyethyleneimine and 2-acrylamide-2-methylpropanesulfonic acid in a three-necked flask according to a c...

Embodiment 2

[0037] This embodiment provides a kind of preparation method of hyperbranched polyethyleneimine copolymer multifunctional water treatment agent:

[0038] Step 1, take by weighing 4.7 grams of maleic acid and 2.6 grams of sodium hydroxide, add 10 grams of water to dissolve, then add hyperbranched polyalkyleneimine solution (get 2.7 grams of hyperbranched polyethyleneimine, add 5 grams of water to dissolve), Under the condition of microwave, the reaction was heated for 1 h. After the reaction was completed, it was lowered to room temperature to obtain a light yellow solution, which was dried to obtain hydroxylated hyperbranched polyethyleneimine. The microwave field for microwave heating is a microwave field of 2450MHz, the microwave power is 500W, the microwave radiation time is 30-40min, and the reaction temperature is 70°C-80°C.

[0039] Step 2, add 1 gram of hydroxylated hyperbranched polyethyleneimine and 5 grams of 2-acrylamide-2-methylpropanesulfonic acid in a three-necke...

Embodiment 3

[0045] This embodiment provides a kind of preparation method of hyperbranched polyethyleneimine copolymer multifunctional water treatment agent:

[0046] Step 1, take by weighing 4.7 grams of maleic acid and 2.6 grams of sodium hydroxide, add 10 grams of water to dissolve, then add hyperbranched polyalkyleneimine solution (get 2.7 grams of hyperbranched polyethyleneimine, add 5 grams of water to dissolve), Under the condition of microwave, the reaction was heated for 1 h. After the reaction was completed, it was lowered to room temperature to obtain a light yellow solution, which was dried to obtain hydroxylated hyperbranched polyethyleneimine. The microwave field for microwave heating is a microwave field of 2450MHz, the microwave power is 500W, the microwave radiation time is 30-40min, and the reaction temperature is 70°C-80°C.

[0047] Step 2, add 1 gram of hydroxylated hyperbranched polyethyleneimine and 5 grams of 2-acrylamide-2-methylpropanesulfonic acid in a three-necke...

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Abstract

The invention provides a preparation method of a hyperbranched polyethyleneimine copolymer water treatment agent, which uses hydroxylated hyperbranched polyethyleneimine and 2-acrylamide-2-methylpropanesulfonic acid as monomers and dissolves them in water , put it under the microwave field, add the initiator ammonium persulfate dropwise to form a microwave synthesis reaction system; stir and reflux, the microwave power is 300W~700W, the microwave radiation time is 20min~60min, the reaction temperature is 60℃~90℃, and the solution is cooled to room temperature and dried to obtain the final product hyperbranched polyethyleneimine copolymer multifunctional water treatment agent. The hyperbranched polyethyleneimine copolymer water treatment agent prepared by the above preparation method is used for scale inhibition, slow release and sterilization of water. The multifunctional water treatment agent prepared by the preparation method of the present invention has excellent CaCO3 scale inhibition effect, good corrosion inhibition performance, good bactericidal performance, and is biodegradable. It is an environmentally friendly new green multifunctional water treatment agent. treatment agent.

Description

technical field [0001] The invention belongs to the field of water treatment and relates to a multifunctional water treatment agent, in particular to a preparation method and application of a hyperbranched polyethyleneimine copolymer water treatment agent. Background technique [0002] With the rapid development of industrial production, industrial water consumption has also increased rapidly. Among them, the consumption of cooling water accounts for more than 80% of the total industrial water consumption. During the use of cooling water, due to continuous circulation and continuous concentration, water Containing impurities, such as the increasing concentration of minerals, can easily cause scaling and corrosion of equipment and pipelines, and the accumulation and reproduction of microorganisms in water will also aggravate the corrosion of pipelines and affect water quality. At this time, it is necessary to add water quality treatment agents, such as corrosion and scale inh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/12
CPCC02F1/50C02F5/12C02F2303/20C02F2303/22
Inventor 董社英张黎黎袁小静黄廷林
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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