Method of synthesizing cation polyacrylamide water-in-water emulsion

A technology of polyacrylamide and synthesis method, applied in the field of synthesis of water-soluble polymers, can solve problems such as poor fluidity of polymer emulsions

Inactive Publication Date: 2007-08-15
CHENGDU ORGANIC CHEM CO LTD CHINESE ACAD OF SCI
View PDF3 Cites 48 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polymer emulsion synthesized by this method can exist s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method of synthesizing cation polyacrylamide water-in-water emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 85g deionized water, 57g ammonium sulfate, 22g acrylamide, 11g methacryloxyethyltrimethylammonium chloride (concentration 80%) solution, 11g acryloyloxyethyltrimethylammonium chloride (concentration is 80%) solution, 45g stabilizer A, 0.02g EDTA; Constant temperature 35 ℃, stirring 800 rpm, nitrogen to remove the oxygen. After passing nitrogen for about 15 minutes, 0.02 ml of 1 wt % V044 solution was added. After 2 hours, the polymerization started, and the viscosity of the system continued to increase within 30 minutes. After 2 hours of the polymerization, the system gradually changed from transparent to milky white, and the viscosity gradually decreased. At this point 0.02 ml of 1 wt% V044 solution was added. 0.04ml of 1wt% V044 solution was added in 4 hours, 0.08ml of 1wt% V044 solution was added in 8 hours, and the reaction continued for 24 hours. After adding 2 g of ammonium sulfate for viscosity reduction, the reaction product was taken out to obtain a milk...

Embodiment 2

[0023] Add 85g deionized water, 57g ammonium sulfate, 22g acrylamide, 5g methacryloxyethyltrimethylammonium chloride (concentration 80%) solution, 17g acryloyloxyethyltrimethylammonium chloride (concentration is 80%) solution, 45g stabilizer A, 0.02g EDTA; Constant temperature 35 ℃, stirring 800 rev / min, nitrogen to remove in the system oxygen. After passing nitrogen for about 15 minutes, 0.02 ml of 1 wt % V044 solution was added. After 2 hours, the polymerization started, and the viscosity of the system continued to increase within 30 minutes. Within 3 hours of the polymerization, the system gradually changed from transparent to milky white, and the viscosity gradually decreased. At this point, 0.02ml of 1wt% V044 solution was added, 0.04ml of 1wt% V044 solution was added in 4 hours, 0.08ml of 1wt% V044 solution was added in 8 hours, and the reaction continued for 24 hours. After adding 2g of ammonium sulfate to lower the viscosity, take it out to obtain a milky white dispe...

Embodiment 3

[0025]Add 85g of deionized water, 57g of ammonium sulfate, 22g of acrylamide, 2g of methacryloxyethyltrimethylammonium chloride (concentration 80%) solution, 20g acryloyloxyethyltrimethylammonium chloride (concentration is 80%) solution, 45g stabilizer A, 0.02g EDTA; Constant temperature 35 ℃, stir 800 rpm, pass nitrogen to remove the oxygen. After passing nitrogen for about 15 minutes, 0.02 ml of 1 wt % V044 solution was added. After 2 hours, the polymerization started, and the viscosity of the system continued to increase within 30 minutes. Within 3.5 hours of the polymerization, the system gradually changed from transparent to milky white, and the viscosity gradually decreased. At this point, 0.02ml of 1wt% V044 solution was added, 0.04ml of 1wt% V044 solution was added in 4 hours, 0.08ml of 1wt% V044 solution was added in 8 hours, and the reaction continued for 24 hours. After adding 2g of ammonium sulfate to lower the viscosity, take it out to obtain a milky white dispe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a synthesizing method of cationic polyacrylamide 'water-in-water' emulsion, which is characterized by the following: adopting inorganic solution as dielectric with specific viscosity number is 30-90ml/g low-molecular cationic polymer solution as stabilizer; copolymerizing free radical of cationic monomer with double bond and non-ion monomer to form the product with grain size less than 1um; fitting for disposing urban effluent, oil-field effluent and paper-making domain.

Description

technical field [0001] The invention relates to a synthesis method of a cationic polyacrylamide 'water-in-water' emulsion, which belongs to the synthesis of water-soluble polymers. Background technique [0002] Polyacrylamide-based water-soluble polymer materials are widely used in the fields of flocculation, thickening, drag reduction, bonding, and scale inhibition because of their good water solubility, excellent viscosity increasing, and efficient flocculation performance. Among them, cationic polyacrylamide water-soluble polymer materials are more suitable for sewage treatment and papermaking due to the charge adsorption effect of cationic groups. [0003] At present, polyacrylamide-based water-soluble polymer materials usually appear in the application field in the form of polymer aqueous solution, polymer gel, polymer dry powder, and inverse emulsion or microemulsion. The aqueous solution of high molecular weight and ultra-high molecular weight polyacrylamide water-so...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08F20/56C08F4/40C08F2/16
Inventor 冯玉军吕永利张胜束松矿赵永峰
Owner CHENGDU ORGANIC CHEM CO LTD CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap