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Preparation method of anionic polyacrylamide with ultrahigh viscosity

A technology of polyacrylamide and acrylamide, which is applied in the field of preparation of ultra-high viscosity anionic polyacrylamide, can solve the problems of difficulty in continuing to increase significantly, the bottleneck of pam viscosity, and achieves good solubility, good mechanical shear resistance, and flocculation. good effect

Inactive Publication Date: 2016-01-27
东营市诺尔化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Nowadays, polyacrylamide (pam) has been widely used as a tackifier in various fields, but some fields have higher requirements for the viscosity of pam products, such as incense making, oil extraction, ceramics and construction industries, etc., through traditional processes The viscosity of the produced pam has reached the bottleneck, and it is difficult to continue to increase significantly

Method used

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Examples

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preparation example Construction

[0014] A preparation method of ultra-high viscosity anionic polyacrylamide, the raw materials are selected in weight parts: 200-270 of acrylamide, 80-160 of sodium alpha allyl propane sulfonate, 10-22 of sodium acrylate, 1-2 of a structure regulator, Deionized water 600-700, initiator 0.02-0.08; add acrylamide, sodium α-allylpropanesulfonate and sodium acrylate in the above weight parts to the reactor, add structure regulator in proportion, pass nitrogen to remove oxygen for 50min, Adjust the pH value between 4-5, add initiator to polymerize at 2-5 °C, take out the jelly after the reaction, granulate the polymer, dry and crush to obtain the product.

[0015] Said sodium alpha allyl propane sulfonate is a polymerized monomer of non-ionic monomer, and in acrylamide, sodium acrylate and three monomers, the mass fraction of sodium alpha allyl propane sulfonate is greater than 25%.

[0016] The sodium acrylate is a polymerized monomer of non-ionic monomers, and in acrylamide, sodiu...

Embodiment 1

[0021] Acrylamide 210, sodium alpha allyl propane sulfonate 90, sodium acrylate 10, structure regulator 1.5, deionized water 620, potassium persulfate 0.012, and sodium bisulfite 0.008 were selected in parts by weight.

[0022] Add deionized water, acrylamide, sodium alpha allyl propane sulfonate, sodium acrylate, structure regulator, initiator to the reactor, after mixing evenly, adjust the pH value between 4-5 with acrylic acid, and remove the Oxygen for 30min, add initiator to polymerize at 2°C, take out the jelly after the reaction, granulate the jelly, put the jelly in an oven at 75°C for drying, take out the dried jelly after 2 hours and pulverize to obtain the product, the viscosity of the product is 810cps.

Embodiment 2

[0024] Acrylamide 240, sodium alpha allyl propane sulfonate 120, sodium acrylate 15, structure modifier 3, deionized water 680, potassium persulfate 0.027, and sodium bisulfite 0.018 were selected in parts by weight.

[0025] Add deionized water, acrylamide, sodium alpha allyl propane sulfonate, sodium acrylate, structure regulator, initiator to the reactor, after mixing evenly, adjust the pH value between 4-5 with acrylic acid, and remove the Oxygen for 30min, add initiator to polymerize at 2°C, take out the jelly after the reaction, granulate the jelly, put the jelly in an oven at 75°C for drying, take out the dried jelly after 2 hours and pulverize to obtain the product, the product viscosity is 860cps.

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Abstract

The invention discloses a preparation method of anionic polyacrylamide with ultrahigh viscosity. The anionic polyacrylamide is a water-soluble high-molecular polymer of a rigid structure and is prepared by copolymerizing cationic monomers and acrylamide and adding structure modifiers to control the polymer structure. The product obtained through the preparation method is good in solubility, higher in adaptability to water purification equipment and water quality and better in flocculation effect.

Description

technical field [0001] The invention belongs to the technical field of water-soluble polymer chemical additives, in particular to a preparation method of an ultra-high viscosity anionic polyacrylamide. Background technique [0002] Nowadays, polyacrylamide (pam) as a tackifier has been widely used in various fields, but some fields have higher requirements for the viscosity of pam products, such as incense, oil extraction, ceramics and construction industries. The viscosity of the produced pam has reached the bottleneck, and it is difficult to continue to increase significantly. SUMMARY OF THE INVENTION [0003] The ultra-high viscosity anionic polyacrylamide described in the present invention is a kind of water-soluble polymer polymer with rigid structure prepared by copolymerizing cationic monomer and acrylamide, and controlling the structure of the polymer by adding a structure regulator. thing. The product obtained by the invention has good solubility, stronger adapt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F228/02C08F220/02C08F2/38C08F8/42
Inventor 荣敏杰许永升唐建
Owner 东营市诺尔化工有限责任公司
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