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Hyperdispersant, and preparation method and application method thereof

A technology of hyperdispersant and silane coupling agent, which is applied in chemical instruments and methods, transportation and packaging, dyeing polymer organic compound treatment, etc. It can solve the problems of weak dispersion ability of dispersant and achieve short cycle and easy The effect of industrial promotion and super dispersing ability

Active Publication Date: 2016-07-20
江苏妙润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a hyperdispersant, aiming to solve the problem that traditional dispersants have weak dispersing ability and contain some toxic substances

Method used

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  • Hyperdispersant, and preparation method and application method thereof
  • Hyperdispersant, and preparation method and application method thereof
  • Hyperdispersant, and preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Mix 1 mol of silane coupling agent KH-570, 0.5 mol of acrylic acid, 1 mol of styrene, 0.03 mol of azobisisobutyronitrile and 0.01 mol of isopropanol to obtain solution A;

[0036] (2) Place the container containing the toluene solution in a water bath at 70°C and heat it under N 2 Protect the environment and stir at 500 rpm, add the solution A obtained in step (1) dropwise in 40ml of toluene solution within 2 hours (dropping at a constant speed), and keep warm for 4 hours after the dropping is completed;

[0037] Filter the product after heat preservation with a filter paper with a pore size of 30-50 μm under reduced pressure. Specifically, select a round filter paper with a slightly smaller inner diameter than the Buchner funnel and spread it on the bottom of the funnel, wet it with acetone, and turn on the suction device to make the filter paper close to the bottom of the funnel. at the bottom of the funnel;

[0038] Wash the filtered product with absolute ethano...

Embodiment 2

[0044]Prepare hyperdispersant and modified nano-copper powder according to the method described in Example 1, the difference is that in step (1), 1mol silane coupling agent KH-570, 1mol acrylic acid, 1mol styrene, 0.03 mol azobisisobutyronitrile and 0.013 mol isopropanol were mixed to obtain solution A.

[0045] In step (2), the container containing toluene is placed in a 70°C water bath to heat, solution A is added dropwise to the toluene solution within 2 hours, and after 4 hours of heat preservation, it is filtered, washed and dried to obtain a hyperdispersant, which is then gel permeated The number average molecular weight of the hyperdispersant measured by spectroscopy is 6000-6500.

[0046] In step (3), 1g of nano-copper powder and 0.06g, 0.08g, 0.1g of hyperdispersant were placed in 40ml of toluene solution, ultrasonically dispersed at 100-120W for 0.5h, and then heated in a water bath at 70°C, 400-600 Stirring for 3 hours at rpm; filtering, washing and drying the prod...

Embodiment 3

[0048] Prepare hyperdispersant and modified nano-copper powder according to the method described in Example 1, the difference is that in step (1), 1mol silane coupling agent KH-570, 3mol acrylic acid, 2mol styrene, 0.06 mol azobisisobutyronitrile and 0.02 mol isopropanol were mixed to obtain solution A.

[0049] In step (2), the container containing toluene was heated in a water bath at 80°C, solution A was added dropwise to the toluene solution within 3 hours, and after 5 hours of heat preservation, it was filtered, washed and dried to obtain a hyperdispersant. The number average molecular weight of the hyperdispersant measured by gel permeation spectrometry is 6000-6500.

[0050] In step (3), put 1g of nano-copper powder and 0.06g, 0.08g, 0.1g of hyperdispersant into 50ml of toluene solution, ultrasonically disperse at 100-120W for 1h, then heat in a water bath at 80°C, 400-600 rpm Stir for 4 hours at 1 / min; filter, wash and dry the product to obtain surface-modified nano-c...

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Abstract

The invention provides a hyperdispersant, and a preparation method and an application method thereof. The preparation method includes mixing silane coupling agent KH-570 with styrene (St), acroleic acid (AA), azodiisobutyronitrile (AIBN) and isopropanol to obtain a solution A, adding the solution A into a methylbenzene solution drop by drop while stirring under the N2 protection environment, heating the methylbenzene solution in water bath at the temperature of 70-90 DEG C, insulating heat for 4-6 hours after dropwise addition, and filtering, washing and drying a product to obtain the hyperdispersant. The hyperdispersant has the advantages that inorganic nano-particles can be well dispersed in lubricating oil; technological operation is simple, cost is low, cycle is short, special process equipment is not needed, and easiness in industrial popularization is realized; the composite hyperdispersant is poisonless and harmless and is in conformity with the green production idea.

Description

technical field [0001] The invention belongs to the field of dispersants, and in particular relates to a lipophilic hyperdispersant and a preparation method and application method thereof. Background technique [0002] Due to the development of the engine industry and the increasingly urgent need for environmental protection, the performance requirements for lubricating oil are very different from the traditional requirements. Various lubricating oil additives play a very important role in lubricating oil production. The performance of lubricating oil depends directly on the selection of additives, and the two are closely related. Adding lubricants made of nano-materials to lubricating oil can significantly improve its lubricating performance and load-carrying capacity, reduce the coefficient of friction, reduce frictional resistance, and prolong the life of the machine. Although the amount of additives in lubricating oil is much less than that of base oil, its importance i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/62C09C3/10B01F17/54C08F212/08C08F230/08C08F220/06C09K23/54
CPCC08F212/08C08F230/08C09C1/627C09C3/006C09C3/10C09K23/00C08F220/06
Inventor 罗驹华吴其增高多多
Owner 江苏妙润新材料科技有限公司
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