Granular foam stabilizer and its preparation method and application

A foam stabilizer and particle technology, which is used in the treatment of dyed polymer organic compounds, coatings, polyurea/polyurethane coatings, etc., to reduce production costs, improve foam stability, and achieve good stability.

Active Publication Date: 2021-04-27
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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  • Granular foam stabilizer and its preparation method and application

Examples

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Comparison scheme
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 granular foam stabilizer, a preparation method and application thereof. The particle foam stabilizer comprises hydrophilic solid particles with a particle size of 0.1-5 μm, and the surface of the particle is modified with hydrophobic molecular chains through physical adsorption. Its preparation method is: first add hydrophilic solid particles into ethanol-water solution to form a solid particle suspension; then add a modifier containing hydrophobic molecular chains and stir to modify the hydrophobic molecular chains to the surface of the hydrophilic solid particles; The obtained product is separated by suction filtration, and the solid phase material is dried to obtain a granular foam stabilizer. The granular foam stabilizer can effectively improve the foam stability, and the foam stabilizer itself has better stability, is convenient to prepare, and has no pungent smell and is more environmentally friendly; the granular foam stabilizer is used in polyurethane foam coatings, and is generally On the one hand, it can replace the traditional ammonium stearate foam stabilizer. On the other hand, the solid particles can also act as fillers or functional additives for polyurethane foam coatings, improving coating performance and reducing production costs.

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 Patents(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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