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Water-based polymer nano iron oxide dispersing agent 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: 2021-01-26
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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  • Water-based polymer nano iron oxide dispersing agent and preparation method thereof
  • Water-based polymer nano iron oxide dispersing agent and preparation method thereof
  • Water-based polymer nano iron oxide dispersing agent 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, 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 protection ...

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 dispersing agent and a preparation method thereof. The preparation method of the dispersing agent comprises the following steps of S1, preparing a polyhydroxy acrylic acid copolymer from a mixture of trimethylbenzene and an acrylic monomer under the action of an initiator, S2, reacting the polyhydroxy acrylic acid copolymer prepared inthe step S1, isophorone diisocyanate and methoxy polyethylene glycol under the action of a catalyst to obtain a polyurethane modified acrylic acid copolymer, and S3, adding phosphorus pentoxide, distilled water and an alcohol ether solvent into the polyurethane modified acrylicacid copolymer for reaction to obtain a water-based polymer nano iron oxide dispersing agent. The water-based polymer nanoiron oxide dispersing agent provided by the invention has the advantages of good viscosity reduction, wide compatibility, high performance and environmental protection.

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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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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