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Particle foam stabilizer and preparation method and application thereof

A technology of foam stabilizer and granule, which is applied in the direction of fibrous filler, coating, dyeing low molecular organic compound treatment, etc., to achieve the effect of reducing production cost, improving foam stability and good stability

Active Publication Date: 2020-06-09
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: Aiming at the problems existing in the foam stabilizer used in the existing polyurethane foam coating, the present invention provides a granular foam stabilizer and a preparation method thereof, and also provides a granular foam stabilizer used as a foam stabilizer for polyurethane foam coatings. Application of layer foam stabilizer

Method used

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  • Particle foam stabilizer and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0022] In terms of mass fraction, the raw materials of the granular foam stabilizer include: 30 parts of calcium carbonate (5 microns in particle size), 1.5 parts of sodium lauryl sulfate, and 200 parts of 10% ethanol-water solution.

[0023] The preparation steps of the particle foam stabilizer are as follows:

[0024] 1) Weigh 30 parts of calcium carbonate particles in a reaction kettle, add 200 parts of 10% ethanol-water solution, control the temperature to 40°C, and stir evenly to form a suspension;

[0025] 2) Add 1.5 parts of sodium lauryl sulfate to the calcium carbonate suspension, and continue to stir for 2 hours at 40°C;

[0026] 3) Stirring was stopped, the product was separated by suction filtration, and dried at 40° C. to obtain a calcium carbonate particle foam stabilizer.

Embodiment 2

[0028] In terms of mass fraction, the raw materials of the granular foam stabilizer include: 30 parts of calcium carbonate (with a particle diameter of 1 micron), 3 parts of sodium dodecylbenzenesulfonate, and 200 parts of 20% ethanol-water solution.

[0029] The preparation steps of this granular foam stabilizer are as follows:

[0030] 1) Weigh 30 parts of calcium carbonate particles in a reaction kettle, add 200 parts of 20% ethanol-water solution, control the temperature to 20°C, and stir evenly to form a suspension;

[0031] 2) Add 3 parts of sodium dodecylbenzenesulfonate to the calcium carbonate suspension, and continue stirring for 3 hours at 20° C.;

[0032] 3) Stirring was stopped, the product was separated by suction filtration, and dried at 60° C. to obtain a calcium carbonate particle foam stabilizer.

Embodiment 3

[0034] In terms of mass fraction, the raw materials of the granular foam stabilizer include: 30 parts of titanium dioxide (particle diameter: 0.1 micron), 1.5 parts of cetyltrimethylammonium bromide, and 200 parts of 40% ethanol-water solution.

[0035] The preparation steps of this granular foam stabilizer are as follows:

[0036] 1) Weigh 30 parts of titanium dioxide into a reaction kettle, add 200 parts of 40% ethanol-water solution, control the temperature at 60°C, and stir evenly to form a suspension;

[0037] 2) Add 1.5 parts of cetyltrimethylammonium bromide to the titanium dioxide suspension, and continue stirring at 60°C for 4 hours;

[0038] 3) Stirring was stopped, the product was separated by suction filtration, and dried at 60° C. to obtain a foam stabilizer of titanium dioxide particles.

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Abstract

The invention discloses a particle foam stabilizer and a preparation method and application thereof. The particle foam stabilizer comprises hydrophilic solid particles with a particle size of 0.1-5 [mu]m, and the surface of the particle foam stabilizer is modified with a hydrophobic molecular chain through a physical adsorption effect. The preparation method comprises the steps: firstly, adding hydrophilic solid particles into an ethanol-water solution to prepare a solid particle suspension; then adding a modifier containing a hydrophobic molecular chain, and stirring to modify the surface ofthe hydrophilic solid particle with the hydrophobic molecular chain; and finally, carrying out suction filtration and separation on the obtained product, and drying the solid-phase material to obtainthe particle foam stabilizer. The particle foam stabilizer can effectively improve the foam stability, has good stability, is convenient to prepare, has no pungent smell and is more environmentally friendly; the particle foam stabilizer is used in a polyurethane foaming coating layer, on one hand, the particle foam stabilizer can replace a traditional ammonium stearate foam stabilizer, and on theother hand, solid particles can also serve as a filler or a functional additive of the polyurethane foaming coating layer, so that the production cost is reduced while the coating layer performance isimproved.

Description

technical field [0001] The invention relates to a foam stabilizer and its application, in particular to a granular foam stabilizer and its preparation method and its application as a foam stabilizer for polyurethane foam coatings, belonging to the technical field of chemical additives. Background technique [0002] Water-based polyurethane coating is harmless to the human body in the production process, and has been widely used in the preparation of foam coatings such as synthetic leather and advertising cloth. At present, the foam stabilizer added in production is ammonium stearate emulsion. A large amount of ammonia water is needed in the foam preparation process, and ammonia water is very volatile, so the production and use of ammonium stearate will pollute the environment. And the stability of the ammonium stearate emulsion is relatively poor, and the phenomenon of agglomeration and thickening will occur after being placed for a long time, which is unfavorable for use. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/08C09C1/36C09C1/30C09C3/10C09C1/42C09D7/62C09D175/04
CPCC09C1/021C09C1/3063C09C1/3072C09C1/3669C09C1/42C09C3/08C09C3/10C09D175/04C09D7/62
Inventor 杨继生唐烨王旭鹏
Owner YANGZHOU UNIV
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