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A kind of nano polymer latex, preparation method and application thereof

A technology of polymer latex and nano-polymer, which is applied in the field of nano-polymer polymer latex and preparation, and can solve the problems of composition ratio and manufacturing method that need to be studied.

Active Publication Date: 2021-05-07
安徽中科日升科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its composition ratio and manufacturing method have yet to be studied.

Method used

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  • A kind of nano polymer latex, preparation method and application thereof
  • A kind of nano polymer latex, preparation method and application thereof
  • A kind of nano polymer latex, preparation method and application thereof

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preparation example Construction

[0038] A method for preparing nanometer polymer latex, comprising the following steps:

[0039]Step 101: Add the mixed solvent of alcohol and water into the reaction kettle, add humic acid while stirring, and add sodium hydroxide to adjust the pH to 11, and stir for 30 minutes to dissolve the humic acid.

[0040] Step 102: Add modified starch, acrylamide and aluminum salt to (1), stir and mix evenly, then add initiator and complexing agent-ethylenediaminetetraacetic acid, and stir at 40-60°C under nitrogen protection The dispersion polymerization was carried out for 2-5 hours.

[0041] Step 103: After the reaction is completed, perform suction filtration and separation, and dry to obtain nanometer polymer latex.

Embodiment 1

[0043] (1) Add 10kg of distilled water, 6kg of white oil, 5kg of glycerin, and 5kg of polyethylene glycol into a vortex type liquid grinder, carry out circular shearing for 40 minutes, and prepare an alcohol-water-oil solvent for use.

[0044] (2) Add 38kg N-vinylpyridine, 26kg epichlorohydrin, 2kg titanium tetrachloride and 5.5kg polyoxyethylene diamine to (1) and dissolve them by shearing for 10 minutes, then slowly add 0.5kg over Oxidize tert-butyl benzoate, cyclically shear for 1.5 hours to carry out dispersion polymerization, and finally add 8kg of ammonia water to carry out hydrolysis for 30 minutes to obtain the product of the present invention.

Embodiment 2

[0046] (1) Add 12kg of distilled water, 12kg of white oil, 4.5kg of glycerin, and 1.5kg of polyethylene glycol into a vortex type liquid grinder, carry out cyclic shearing for 45 minutes, and prepare an alcohol-water-oil solvent,

[0047] (2) Add 34kg of N-vinylpyridine, 20kg of epichlorohydrin, 3kg of yttrium trichloride and 6kg of polyoxyethylenediamine to (1) for 10 minutes to dissolve, then slowly add 1kg of benzene peroxide tert-butyl formate, cyclic shearing for 2 hours to carry out dispersion polymerization reaction, and finally add 6 kg of 20% sodium hydroxide aqueous solution to carry out hydrolysis reaction for 30 minutes to obtain the product of the present invention.

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Abstract

The present invention provides a kind of nano high molecular polymer latex, preparation method and application thereof, described nano high molecular polymer latex is made of monomer, initiator, precipitating agent, dispersion stabilizer-polyoxyethylene diamine and hydrolyzing agent It is prepared by chemical hydrolysis in an alcohol-water-oil mixed solvent. The mass percentage of each reactant is: monomer 40-60%, initiator 0.5-2%, precipitant 1-5%, dispersion stabilizer-polyoxygen Ethylenediamine 5-10%, hydrolysis agent 5-10%, alcohol-water-oil mixed solvent 15-40%. The invention provides nano-polymer latex and its preparation method, the process is simple and efficient, can resist saturated brine and compound brine, can resist temperature up to 160°C, is non-toxic, has no fluorescence, is suitable for various water-based drilling fluids and is environmentally friendly The drilling environment is demanding, and the prepared nano-polymer latex has multiple uses, not only as the main component of drilling fluid and completion fluid in oil field production, but also as a film in the leather industry and construction industry agent and coating industry as a dispersant.

Description

technical field [0001] The invention belongs to the technical field of chemical additives, and in particular relates to a nanometer polymer latex, a preparation method and an application thereof. Background technique [0002] With the development of the drilling industry, the probability of encountering complex formations during the drilling process is getting higher and higher, and there are more and more deep wells and ultra-deep wells, which put forward higher requirements for the temperature resistance and salt resistance of drilling fluid treatment agents, comprehensive performance requirements It is becoming more and more stringent; the requirements for ensuring downhole safety, stabilizing the well wall, increasing the drilling speed and protecting the reservoir are becoming increasingly prominent; especially, there are few treatment agents suitable for high temperature and high salinity environments, and the micron level in hard and brittle shale 1. Nano-scale micro-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F226/06C08F218/08C09K8/24
CPCC08F218/08C08F226/06C09K8/24C09K2208/34
Inventor 孙中南孙中俊权换哲国文月冯理琼
Owner 安徽中科日升科技有限公司
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