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A kind of leveling liquid and its preparation method and application

A technology of leveling fluid and polyacrylamide, which is used in lubricating compositions, petroleum industry, etc., can solve problems such as inability to meet different needs, and achieve the effects of excellent anti-rust performance, low surface tension and excellent performance

Active Publication Date: 2022-04-19
QUAKER CHEM CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The leveling fluid of this patent has good anti-rust ability, but it still cannot meet the different needs of different products

Method used

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  • A kind of leveling liquid and its preparation method and application
  • A kind of leveling liquid and its preparation method and application
  • A kind of leveling liquid and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A leveling liquid (1000g / L), consisting of the following components:

[0055]

[0056]

[0057] Among them, the organic amine is monoethanolamine; the organic acid is a mixed acid composed of neononanoic acid and sebacic acid in a mass ratio of 3:4; the corrosion inhibitor is benzotriazole; the surfactant is nonylphenol polyoxyethylene ether E09; The functional additive is antirust additive sebacic acid, and the mass ratio of polyacrylamide polymer and functional additive is 10:2.

[0058] The preparation method is as follows:

[0059] (1) Preparation of polyacrylamide polymers coated with functional additives

[0060] In 100 parts by weight of water, add 4 parts by weight of acrylamide and 0.5 parts by weight of N-propylacrylamide, stir vigorously, then add 2 parts by weight of potassium persulfate, raise the temperature to 50°C for 2 hours, and then add 1 part by weight of Potassium sulfate, heated to 75°C, and reacted for 2 hours to obtain a polyacrylamide po...

Embodiment 2

[0065] The difference from Example 1 is that in this example, the polyacrylamide polymer coated with functional additives is replaced by the components prepared as follows:

[0066] In 100 parts by weight of water, add 2.5 parts by weight of acrylamide and 1.0 part by weight of N-propylacrylamide, stir vigorously, then add 2 parts by weight of potassium persulfate, raise the temperature to 50°C for 2 hours, and then add 1 part by weight of persulfate Potassium sulfate, heated to 80°C, and reacted for 1 hour to obtain a polyacrylamide polymer.

[0067] Add 10 parts by weight of polyacrylamide polymer to 10 parts by weight of nonylphenol polyoxyethylene ether E09, dialyze, cool and dry to obtain polyacrylamide polymer coated with functional additives.

Embodiment 3-7

[0069] The difference with Example 2 is that the mass ratio of polyacrylamide polymer and functional additive is 10:3 (Example 3), 10:0.1 (Example 4), 10:5 (Example 5), 10: 6 (Example 6), 10:0.05 (Example 7).

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PUM

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Abstract

The invention provides a leveling liquid and its preparation method and application. The leveling liquid comprises a polyacrylamide polymer coated with functional additives. When the leveling liquid provided by the invention is used at room temperature, it can meet the requirements of the existing general strip steel treatment. When it is heated to 40°C, it can release the functional additive coated in the polyacrylamide polymer, and realize the There is no need to replace the leveling fluid on the production line to meet the application performance requirements of different products.

Description

technical field [0001] The invention belongs to the technical field of strip steel leveling, and relates to a leveling liquid and its preparation method and application. Background technique [0002] The manufacture of cold-rolled steel sheets can be roughly divided into five major processes: pickling, rolling, annealing, leveling, and refined oiling. Among them, rolling, annealing, and leveling are the three main processes that determine the quality of cold-rolled sheets. The so-called smoothing process refers to the low-deformation rolling process carried out after the steel coil is annealed. Its main purpose is to eliminate some surface defects caused by the rolling process and further improve the mechanical properties of the steel plate. [0003] The leveling of the steel strip is to roll the steel coil after cold rolling annealing or hot rolling pickling with a small reduction rate through leveling to achieve the purpose of improving the mechanical properties of the ste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/02C10M177/00C10N30/12C10N40/24
CPCC10M173/02C10M177/00C10M2215/042C10M2207/126C10M2207/127C10M2215/223C10M2209/104C10M2209/108C10M2217/024
Inventor 李宁邓超国
Owner QUAKER CHEM CHINA
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