Supramolecular polymer thickening agent and preparation method thereof

A supramolecular polymer and thickener technology, applied in the field of polymer materials, can solve problems such as poor temperature resistance and poor shear stability

Active Publication Date: 2014-04-30
北京国海能源技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Commonly used synthetic polymer thickeners include polyacrylamide and methylene polyacrylamide, etc. Compared with natural polymers, the above-mentioned synthetic polymers have the advantages of strong thickening ability, good gel breaking performance, and less residue, but they also There are many shortcomings, such as poor temperature resistance, poor shear stability, etc.

Method used

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  • Supramolecular polymer thickening agent and preparation method thereof
  • Supramolecular polymer thickening agent and preparation method thereof
  • Supramolecular polymer thickening agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A supramolecular polymer thickener, which comprises the following raw materials formulated in parts by weight: 3.3 parts of acrylamide, 3.3 parts of vinylpyrrolidone, 1.4 parts of functionalized skeleton monomers, 12 parts of deionized water, 0.5 part of dispersant, 0.8 part of hydrophobic monomer, 20 parts of nitrogen and 0.05 part of initiator; the hydrophobic monomer is vinyl acetate; the functionalized backbone monomer is polyethyleneimine; the dispersant is polyethylene glycol ; The initiator is azobisisobutyronitrile. This preparation method comprises the steps:

[0037] 1. Dissolve acrylamide, vinylpyrrolidone and polyethyleneimine in deionized water in turn to prepare a 40% deionized aqueous solution;

[0038] 2. Mix polyethylene glycol with 40% deionized aqueous solution in step 1 to prepare a dispersant solution;

[0039] 3. Slowly add vinyl acetate into the dispersant solution in step 2 at a rate of 0.2mL / s, and mix evenly to make a suspension;

[0040]4. ...

Embodiment 2

[0043] A supramolecular polymer thickener, which comprises the following raw materials formulated in parts by weight: 3.3 parts of acrylamide, 3.3 parts of vinylpyrrolidone, 1.4 parts of functionalized skeleton monomers, 12 parts of deionized water, 0.8 parts of dispersant, 0.9 parts of hydrophobic monomer, 20 parts of nitrogen and 0.08 part of initiator; the hydrophobic monomer is methyl acrylate; the functionalized backbone monomer is polyaspartic acid; the dispersant is polyacrylamide Described initiator is benzoyl peroxide; Preparation method comprises the steps:

[0044] 1. Dissolve acrylamide, vinylpyrrolidone and polyaspartic acid in deionized water in sequence to prepare a 40% deionized aqueous solution;

[0045] 2. Mix polyacrylamide with 40% deionized aqueous solution in step 1 to prepare a dispersant solution;

[0046] 3. Slowly add methyl acrylate into the dispersant solution in step 2 at a rate of 0.2mL / s, mix evenly, and make a suspension;

[0047] 4. Place the...

Embodiment 3

[0050] A supramolecular polymer thickener, which comprises the following raw materials formulated in parts by weight: 3.3 parts of acrylamide, 3.3 parts of vinylpyrrolidone, 1.4 parts of functionalized skeleton monomers, 12 parts of deionized water, 0.5-1 part of dispersant, 1 part of hydrophobic monomer, 20 parts of nitrogen and 0.1 part of initiator; the hydrophobic monomer is methyl methacrylate; the functionalized backbone monomer is polyaspartic acid; the dispersant Be polyethylene glycol; Described initiator is azobisisobutyronitrile; Preparation method comprises the steps:

[0051] 1. Dissolve acrylamide, vinylpyrrolidone and polyaspartic acid in deionized water in sequence to prepare a 40% deionized aqueous solution;

[0052] 2. Mix polyethylene glycol with 40% deionized aqueous solution in step 1 to prepare a dispersant solution;

[0053] 3. Slowly add methyl methacrylate into the dispersant solution in step 2 at a rate of 0.2mL / s, and mix evenly to make a suspension...

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Abstract

The invention belongs to a supramolecular polymer thickening agent and a preparation method thereof. The supramolecular polymer thickening agent is prepared from the following raw materials in parts by weight: 3.3 parts of acrylamide, 3.3 parts of vinyl pyrrolidone, 1.4 parts of functional framework monomer, 12 parts of deionized water, 0.5-1 part of dispersing agent, 0.8-1 part of hydrophobic monomer, 20 parts of nitrogen and 0.05-0.1 part of initiator, wherein the hydrophobic monomer is any one of vinyl acetate, methyl acrylate and methyl methacrylate; the functional framework monomer can be polyethyleneimine or polyaspartic acid; the dispersing agent can be polyethylene glycol or polyacrylamide; and the initiator can be azodiisobutyronitrile or benzoyl peroxide. The supramolecular polymer thickening agent has the advantages of salt resistance, shear resistance and good temperature resistance performance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a supramolecular polymer thickener and a preparation method thereof. Background technique [0002] Commonly used synthetic polymer thickeners include polyacrylamide and methylene polyacrylamide. Compared with natural polymers, the above-mentioned synthetic polymers have the advantages of strong thickening ability, good gel breaking performance, and less residue. There are many disadvantages, such as poor temperature resistance, poor shear stability and so on. In view of the above phenomena, the performance of the thickener can be improved by properly modifying the polymer. The modification method includes introducing a special hydrophobic monomer or changing the structure of the thickener. [0003] Supramolecular polymers refer to polymers in which monomer units are combined by reversible and highly oriented non-covalent interactions. According to different...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08F220/56C08F226/10C08F218/08C08F220/14
Inventor 张春雨张义勤
Owner 北京国海能源技术研究院
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