Method for synchronizing anode polyacrylamide latex

A technology of polyacrylamide and synthesis method, which is applied in the field of synthesis of cationic polyacrylamide emulsion, and can solve the problems of low effective content, limited use effect, low molecular weight, etc.

Inactive Publication Date: 2009-09-30
东营市诺尔化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the relative molecular weight of the product prepared by this method is not high, and the effective content is low, which limits its use effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, component and weight ratio:

[0019] Acrylamide 134

[0020] Methacryloyloxyethyltriammonium Chloride 40

[0021] Deionized water 249

[0022] Span-80 2.3

[0023] Ammonium persulfate / sodium bisulfite 0.65

[0024] Sodium bisulfite 0.68

[0025] Toluene 55

[0026] Nonylphenol polyoxyethylene ether 10-20

[0027] Processing conditions:

[0028] 1. Dissolve and mix acrylamide, methacryloyloxyethyltrimethylammonium chloride and deionized water evenly to obtain a water phase.

[0029] 2. Dissolve Span-80 in part of toluene to obtain the oil phase, add the water phase, oil phase, remaining toluene and ammonium persulfate / sodium bisulfite into the reaction kettle, and stir evenly.

[0030] 3. Under nitrogen protection, raise the temperature to 25°C and react at 25°C for 3 hours.

[0031] 4. After the reaction time is up, add sodium bisulfite to remove residual monomers, filter, and add a phase inversion agent (nonylphenol polyoxyethylene ether) at room...

Embodiment 2

[0032] Embodiment 2, component and weight ratio:

[0033] N.N-dimethylacrylamide 52

[0034] Acrylamidopropyl dimethyl benzyl ammonium chloride 345

[0035] Deionized water 398

[0036] Span-80 2.3

[0037] Potassium sulfate / sodium bisulfite 0.80

[0038] Sodium bisulfite 0.68

[0039] Xylene 55

[0040] Nonylphenol polyoxyethylene ether 10-20

[0041] Processing conditions:

[0042] 1. Dissolve and mix N.N-dimethylacrylamide, acrylamidopropyl dimethyl benzyl ammonium chloride and deionized water evenly to obtain a water phase.

[0043] 2 Dissolve Span-80 in part of xylene to obtain an oil phase, add the water phase, oil phase, remaining xylene and potassium sulfate / sodium bisulfite into the reaction kettle, and stir evenly.

[0044] 3. Under nitrogen protection, raise the temperature to 30°C and react for 3 hours.

[0045] 4. After the reaction time is up, add sodium bisulfite to remove residual monomers, filter, and add a phase inversion agent (nonylphenol polyoxyet...

Embodiment 3

[0047] Components and weight ratio:

[0048] N-methacrylamide 268

[0049] Acryloyloxyethyltrimethylammonium chloride 61

[0050] Deionized water 116

[0051] Span-80 2.3

[0052] Initiator V044 0.35

[0053] Sodium bisulfite 0.68

[0054] Benzene 55

[0055] Nonylphenol polyoxyethylene ether 10-20

[0056] 1. Dissolve and mix N-methacrylamide, acryloyloxyethyltrimethylammonium chloride and deionized water evenly to obtain a water phase.

[0057] 2 Dissolve Span-80 in part of benzene to obtain the oil phase, add the water phase, oil phase, remaining benzene and initiator into the reaction kettle and stir evenly.

[0058] 3. Under nitrogen protection, raise the temperature to 40°C and react for 3 hours.

[0059]4. After the reaction time is up, add sodium bisulfite to remove residual monomers, filter, and add a phase inversion agent (nonylphenol polyoxyethylene ether) at room temperature to adjust the properties of the latex to obtain the product.

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PUM

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Abstract

The invention relates to a method for synchronizing anode polyacrylamide latex. Raw materials are as follows: 52 to 268 portions of non-ionic monomer, 61 to 345 portions of anode monomer, 116 to 398 portions of deionized water, 2.0 to 2.5 portions of emulsifying agent, 0.3 to 0.8 portions of evocating agent, 0.5 to 0.8 portions of sodium bisulfite, 50 to 60 portions of organic solvent and 10 to 20 portions of phase inversion agent; the method for synchronizing anode polyacrylamide latex is as follows: the non-ionic monomer, the anode monomer and the deionized water are mixed and dissolved uniformly to obtain aqueous phase solution; the emulsifying agent is dissolved in part of the organic solvent to obtain oil phase solution, and the aqueous phase solution, the oil phase solution, the evocating agent and the rest organic solvent are led into a reaction kettle and are protected by nitrogen to be stirred and reacted for 3 hours at the temperature of 20 to 40 DEG C; sodium bisulfite is added for eliminating the residual monomer, and phase inversion agent is added at normal temperature for rubber latex property regulation so that the anode polyacrylamide latex can be obtained. The effective latex of the invention is prepared from green synchronized technical materials, and the process overcomes the disadvantages of slow dissolution and decentralization and high energy consumption and cost.

Description

Technical field: [0001] The invention relates to a cationic polyacrylamide emulsion (also known as "water-in-oil") synthesis method in the technical field of water-soluble polymer synthesis. Background technique: [0002] At present, polyacrylamide water-soluble polymer materials usually appear in the application field in the form of polymer aqueous solution, polymer gel, polymer dry powder and "water-in-water" emulsion. It is well known that the dry powder type polyacrylamide needs to be dissolved for a long time when used. To solve this problem, a "water-in-water" emulsion polymerization method has emerged. However, the relative molecular weight of the product prepared by this method is not high, and the effective content is low, which limits its use effect. Invention content: [0003] The purpose of the present invention is to overcome the above-mentioned disadvantages of the prior art, and to provide a method for synthesizing cationic polyacrylamide emulsion that can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F2/24
Inventor 荣敏杰李保福唐健
Owner 东营市诺尔化工有限责任公司
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