A kind of water-based polymer nano-iron oxide dispersant and preparation method thereof

A nano-iron oxide and water-based polymer technology, applied in coatings, pigment pastes, etc., can solve problems that restrict the application and development of nano-iron oxide pigments, pigment dispersion problems, compatibility differences, etc., and achieve excellent wetting and anchoring Function, excellent viscosity reducing effect, good viscosity effect

Active Publication Date: 2022-04-12
KITO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to its special nanostructure properties, nano-iron oxide has brought some troubles to pigment dispersion. Data retrieval found that although there are many research reports on nano-iron oxide pigment dispersions, there are also a few large-scale companies that have launched However, the problem of insufficient permeability has not been completely solved, and it is still the main obstacle restricting the application and development of nano-iron oxide pigments.
[0006] However, in water-based systems, water-based resins are divided into emulsions, water dispersions, water-soluble systems, etc. Different water-based systems have different polarities, so water-based dispersants often have compatibility issues in various water-based resin systems. difference

Method used

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  • A kind of water-based polymer nano-iron oxide dispersant and preparation method thereof
  • A kind of water-based polymer nano-iron oxide dispersant and preparation method thereof
  • A kind of water-based polymer nano-iron oxide dispersant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A water-based polymer nano-iron oxide dispersant, prepared from the following raw materials: trimethylbenzene, butyl acrylate, isooctyl acrylate, styrene, hydroxypropyl acrylate, di-tert-butyl peroxide, M 350 PU, isofor Alone diisocyanate, Borchi Kat 315, phosphorus pentoxide, distilled water, dipropylene glycol methyl ether;

[0025] The preparation method of the dispersant in the present embodiment comprises the following steps:

[0026] S1. Add 50g of trimethylbenzene into a four-necked flask equipped with a stirring and condensing device, and add 2.5g of butyl acrylate, 5g of isooctyl acrylate, 2.5g of styrene, 40g of The mixture of hydroxypropyl acrylate and 1 g of di-tert-butyl peroxide was added dropwise after 4 hours, kept for 3 hours, cooled to 60°C, and filtered to prepare a polyhydroxy acrylic acid copolymer;

[0027] S2. Weigh 25g of M 350 PU into a four-necked flask equipped with a stirring and condensing device, and add 17.47g of isophorone diisocyanate...

Embodiment 2

[0030] A water-based polymer nano-iron oxide dispersant is prepared from the following raw materials:

[0031] Trimethylbenzene, Butyl Acrylate, Isooctyl Acrylate, Styrene, Hydroxypropyl Acrylate, Di-tert-Butyl Peroxide, M 500 PU, Isophorone Diisocyanate, Borchi Kat 315, phosphorus pentoxide, distilled water, dipropylene glycol methyl ether;

[0032] The preparation method of the dispersant of the present embodiment may further comprise the steps:

[0033] S1. Add 50g of trimethylbenzene into a four-necked flask equipped with a stirring and condensing device, and add 7.5g of butyl acrylate, 10g of isooctyl acrylate, 2.5g of styrene, 30g of The mixture of hydroxypropyl acrylate and 0.5g di-tert-butyl peroxide was added dropwise for 3 hours, kept for 2 hours, cooled to 60°C, and filtered to prepare a polyhydroxy acrylic acid copolymer;

[0034] S2. Weigh 25g of M 500PU and add it to a four-necked flask equipped with a stirring and condensing device. At 60°C, under the protectio...

Embodiment 3

[0037] A water-based polymer nano-iron oxide dispersant, prepared from the following raw materials: trimethylbenzene, butyl acrylate, isooctyl acrylate, styrene, hydroxypropyl acrylate, di-tert-butyl peroxide, M 750 PU, isofor Alone diisocyanate, Borchi Kat 315, phosphorus pentoxide, distilled water, dipropylene glycol methyl ether;

[0038] The preparation method of the dispersant of the present embodiment may further comprise the steps:

[0039] S1. Add 50g of trimethylbenzene into a four-necked flask equipped with a stirring and condensing device, and add 7.5g of butyl acrylate, 15g of isooctyl acrylate, 2.5g of styrene, 25g of The mixture of hydroxypropyl acrylate and 0.5g di-tert-butyl peroxide was added dropwise for 3 hours, kept for 2 hours, cooled to 60°C, and filtered to prepare a polyhydroxy acrylic acid copolymer;

[0040] S2. Weigh 25g of M 750 PU into a four-necked flask equipped with a stirring and condensing device, and add 8.15g of isophorone diisocyanate dr...

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Abstract

The invention discloses a water-based polymer nano-iron oxide dispersant and a preparation method thereof. The preparation method of the dispersant comprises the following steps: S1, preparing a polyhydroxy acrylic acid copolymer under the action of an initiator from a mixture of trimethylbenzene and acrylic monomer; S2, Use the polyhydroxy acrylic copolymer prepared in step S1, isophorone diisocyanate and methoxypolyethylene glycol to react under the action of a catalyst to obtain a polyurethane modified acrylic copolymer; S3, in the polyurethane modified acrylic copolymer Add phosphorus pentoxide, distilled water and alcohol ether solvent to react to obtain water-based polymer nano-iron oxide dispersant; the water-based polymer nano-iron oxide dispersant provided by the present invention has good viscosity reduction, wide compatibility, high performance and environmental benefits.

Description

technical field [0001] The invention relates to the technical field of fine chemical additives, in particular to a water-based polymer nanometer iron oxide dispersant and a preparation method of the dispersant. Background technique [0002] Among the inorganic pigments, the application range and dosage of titanium dioxide are the first, and the second inorganic pigments should be iron oxide series pigments. The pigments have many colors, light spectrum, high hiding power, strong tinting power, and main colors. There are three kinds of red, yellow and black, and the compound raw materials of orange, brown and green series of chromatograms can also be obtained through deployment. Iron oxide pigments have good light resistance, weather resistance, acid resistance, alkali resistance and solvent resistance, and are also non-toxic. They are widely used in building materials, coatings, inks, plastics, ceramics, paper, glass products, magnetic recording materials, etc. in the indus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/83C08G18/75C08G18/62C08G18/28C08F220/20C08F220/18C08F212/08C09D7/65C09D17/00C09D7/61
CPCC08G18/836C08G18/755C08G18/6229C08G18/283C08F220/20C09D17/007C09D7/65C09D7/61C08F220/1804C08F220/1808C08F212/08
Inventor 王文陶金铸
Owner KITO CHEM CO LTD
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