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Cation polyacrylamide inverse emulsion and preparation method thereof

A polyacrylamide and inverse emulsion technology, which is applied in the field of cationic polyacrylamide inverse emulsion and its preparation, can solve the problems of product performance impact, single function, poor product stability, etc., and achieve low organic solvent consumption and solid content High, fast dissolution effect

Inactive Publication Date: 2017-05-31
新乡市凯源环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current cationic polyacrylamide inverse emulsion products generally have some problems, such as poor product stability, single function, organic solvents and surface active substances contained in the product have a certain impact on product performance, and may form secondary substances during use. Secondary pollution, etc.

Method used

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  • Cation polyacrylamide inverse emulsion and preparation method thereof
  • Cation polyacrylamide inverse emulsion and preparation method thereof
  • Cation polyacrylamide inverse emulsion and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] In this example, the nonionic monomer is acrylamide, the cationic monomer is acryloyloxyethyltrimethylammonium chloride, and the functional monomer is shown in formula IV, consisting of nonionic monomer, cationic monomer and functional monomer The quality of the cationic copolymer accounts for 30.2% of the total mass of the emulsion, and the molar ratio of nonionic monomer, cationic monomer and functional monomer is 8.5:1.5:0.5; emulsifier is polyoxyethylene sorbitan ether oleic acid Ester and nonylphenol polyoxyethylene ether, its consumption is 4.5% of the total mass of the emulsion; the organic solvent adopts kerosene, and its consumption is 33% of the total mass of the emulsion; 1.5%, the balance is water.

[0036]

Embodiment 2

[0038] In this embodiment, the nonionic monomer is N-methacrylamide, the cationic monomer is methacryloyloxyethyltrimethylammonium chloride, and the functional monomer is shown in formula V, nonionic monomer, cationic monomer The quality of the cationic copolymer formed with functional monomer accounts for 35.2% of the total mass of the emulsion, and the molar ratio of nonionic monomer, cationic monomer and functional monomer is 7.0:2.0:0.5; emulsifier is sorbitan Polyoxyethylene ether stearate and sorbitan polyoxyethylene ether, its consumption is 5.5% of the total mass of the emulsion; the organic solvent adopts white oil, and its consumption is 30.5% of the total mass of the emulsion; the stabilizing auxiliary agent is chlorinated Sodium, its consumption is 1.2% of the total mass of the emulsion, and the balance is water.

[0039]

Embodiment 3

[0041] In this embodiment, the nonionic monomer is methacrylamide, and the cationic monomer is N, N-dimethyl diallyl ammonium chloride. The functional monomer is shown in formula VI, and the nonionic monomer, cationic monomer and The quality of the cationic copolymer that functional monomer is formed accounts for 39.8% of the total mass of the emulsion, and the molar ratio of nonionic monomer, cationic monomer and functional monomer is 5.5:4.5:1.5; Emulsifier is sorbitan poly Oxyethylene ether stearate and alkylphenol polyoxyethylene ether, its consumption is 5.0% of the total mass of the emulsion; the organic solvent adopts xylene, and its consumption is 24.5% of the total mass of the emulsion; the stabilizing auxiliary agent is ammonium chloride, Its consumption is 2.2% of the total mass of the emulsion, and the balance is water.

[0042]

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Abstract

The invention discloses a cation polyacrylamide inverse emulsion and a preparation method thereof, which belong to the technical field of the synthesis of water-soluble macromolecular polymers. A key point of the technical scheme of the invention is as follows: the cation polyacrylamide inverse emulsion is prepared from the following raw materials by weight percent: 22 to 40 percent of cation copolymer consisting of non-ion monomers, cation monomers and functional monomers, wherein a molar ratio of the non-ion monomers to the cation monomers to the functional monomers is (2 to 9.5): (0.5 to 8): (0.1 to 2.5), 2.0 to 7.5 percent of emulsifier, 15 to 45 percent of organic solvent, 0.2 to 3.5 percent of stable additive, and the balance of water. The invention also discloses a preparation method of the cation polyacrylamide inverse emulsion. A functional group is introduced onto a macromolecular main chain of the cation polyacrylamide to improve the stability of the inverse emulsion product and to improve a flocculation capacity in a sewage treatment process; and meanwhile, the product has the characteristics of high solid content, low consumption of organic solvent and high dissolving speed.

Description

technical field [0001] The invention belongs to the technical field of synthesizing water-soluble polymers, and in particular relates to a cationic polyacrylamide inverse emulsion and a preparation method thereof. Background technique [0002] Cationic polyacrylamide is a widely used water-soluble polymer, and has broad application prospects in the fields of sewage treatment, paper industry, and oil field drilling. For example, modern industrial production and domestic sewage contain a large amount of organic matter and suspended solid particles. The surface of these substances is usually negatively charged. Cationic polyacrylamide can destabilize these organic matter and particles through electrostatic adsorption and bridging. , Flocculation, thus contributing to sedimentation and further filtration and dehydration treatment. [0003] Cationic polyacrylamide products are mainly divided into two types: dry powder type and emulsion type. At present, the dry powder type is ma...

Claims

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Application Information

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IPC IPC(8): C08F220/56C08F220/34C08F220/54C08F226/02C08F2/30C08J3/02C08L33/26C08L33/24
CPCC08F220/56C08F2/30C08F220/54C08J3/02C08J2333/24C08J2333/26C08F220/34C08F226/02
Inventor 刘忠
Owner 新乡市凯源环保材料有限公司
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