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Defoaming agent and preparation method thereof

A defoamer and dispersant technology, applied in the field of defoamer and its preparation, can solve the problems of poor portability, low surface tension, control the amount of defoamer added, etc., so as to improve the portability, reduce surface tension, The effect of good defoaming effect

Inactive Publication Date: 2021-02-09
传辰立新(厦门)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Defoamer is a substance that can reduce the surface tension of water, solution, suspension, etc., prevent foam formation, or reduce or eliminate the original foam. It is widely used in coatings, textiles, medicine, fermentation, papermaking, water treatment and petrochemical industry. A large amount of foam will be generated in the production and application process of other fields, which will affect the product quality and production process. Based on the suppression and elimination of foam, a specific amount of defoamer is usually added to it during production. The defoamer has the following properties : ① strong defoaming power, less dosage; ② adding to the foaming system does not affect the basic properties of the system, that is, it does not react with the defoaming system; ③ small surface tension; ④ good balance with the surface; ⑤ resistance Good thermal properties; ⑥Good diffusivity and permeability, high positive spreading coefficient; ⑦Chemical stability, strong oxidation resistance; ⑧Good gas solubility and permeability; ⑨Small solubility in foaming solutions; ⑩ No physiological activity, high safety, widely used in food industry, paper industry, water treatment, oil extraction industry, printing and dyeing industry, paint industry, detergent industry, rubber latex industry, aerosol industry, daily chemical industry, pharmaceutical industry, In the dairy industry, etc., the existing defoamer silicone defoamer has the advantages of strong defoaming performance, rapid foam breaking ability, low volatility, no toxicity to the environment, and no physiological inertia. During use, the foam suppression performance is poor, and it is inconvenient to control the amount of defoamer added according to different use requirements, resulting in poor portability

Method used

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  • Defoaming agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of defoamer of the present invention comprises following composition:

[0029] Emulsifier 1.5%;

[0030] Dispersant 0.8%;

[0031] Emulsifying aid 1.0%;

[0032] Active ingredient 3.5%;

[0033] Carrier the rest.

[0034] The carrier includes sodium humate and activated carbon powder, and the ratio of sodium humate and activated carbon powder is 1:9.

[0035] The active ingredient is a mixture of polymethylsiloxane, hydroxymethylcellulose, silicone oil and graphene powder, and the addition ratio of each ingredient is 1:2:1.5:2.

[0036] The dispersant is a mixture of sodium pyrophosphate and polyacrylamide.

[0037] A kind of preparation method of antifoaming agent, comprises the following steps:

[0038] S1. Prepare the carrier binder: add water to the sodium humate while stirring until the sodium humate is mixed into a viscous shape;

[0039] S2. Mixing of carrier materials: Grind and sieve the activated carbon powder and add it to the binder prepared in...

Embodiment 2

[0049] A kind of defoamer of the present invention comprises following composition:

[0050] Emulsifier 1%;

[0051] Dispersant 0.6%;

[0052] Emulsifying aid 1.2%;

[0053] active ingredient 4%;

[0054] Carrier the rest.

[0055] The carrier includes sodium humate and activated carbon powder, and the ratio of sodium humate and activated carbon powder is 1:10.

[0056] The active ingredient is a mixture of polymethicone and hydroxymethylcellulose in a ratio of 1:3.

[0057] The dispersant is sodium tripolyphosphate.

[0058] A kind of preparation method of antifoaming agent, comprises the following steps:

[0059] S1. Prepare the carrier binder: add water to the sodium humate while stirring until the sodium humate is mixed into a viscous shape;

[0060] S2. Mixing of carrier materials: Grind and sieve the activated carbon powder and add it to the binder prepared in S1, and continue stirring and mixing until the materials are mixed into agglomerates;

[0061] S3. Knead...

Embodiment 3

[0070] A kind of defoamer of the present invention comprises following composition:

[0071] Emulsifier 2%;

[0072] Dispersant 1.0%;

[0073] Emulsifying aid 0.8%;

[0074] active ingredient 3%;

[0075] Carrier the rest.

[0076] The carrier includes sodium humate and activated carbon powder, and the ratio of sodium humate and activated carbon powder is 1:10.

[0077] The active ingredient is a mixture of polymethylsiloxane, hydroxymethylcellulose and graphene powder, and the addition ratio of each ingredient is 1:2.5:1.8.

[0078] The dispersant is a mixture of sodium tripolyphosphate, sodium pyrophosphate and polyacrylamide.

[0079] A kind of preparation method of antifoaming agent, comprises the following steps:

[0080] S1. Prepare the carrier binder: add water to the sodium humate while stirring until the sodium humate is mixed into a viscous shape;

[0081] S2. Mixing of carrier materials: Grind and sieve the activated carbon powder and add it to the binder pre...

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Abstract

The invention relates to the technical field of defoaming agents, and particularly relates to a defoaming agent and a preparation method thereof which can improve the foam inhibition performance, conveniently control the addition amount of the defoaming agent according to different use requirements and improve the use portability. The defoaming agent comprises the following components: 1-2% of anemulsifier, 0.6-1.0% of a dispersing agent, 0.8%-1.2% of an emulsifying aid, 3-5% of an active component, and the balance of a carrier. The production method of the defoaming agent comprises the stepsof S1, preparing a carrier binder, specifically, mixing the sodium humate into a viscous state; S2, conducting carrier material mixing, specifically, grinding and sieving the activated carbon powder,adding the ground and sieved activated carbon powder into the binder, and continuously stirring and mixing until the materials are mixed into a ball; S3, conducting mixing and kneading treatment; S4,forming carrier particles; S5, carrying out carbonization treatment; S6, conducting dressing mixing; S7, conducting carrier dressing; S8, conducting irradiation curing, specifically, guiding the carrier filled with the dressing into irradiation equipment for irradiation treatment so as to enable the dressing to be cured in apertures of carrier particles; and S9, conducting sub-packaging.

Description

technical field [0001] The invention relates to the technical field of defoamers, in particular to a defoamer and a preparation method thereof. Background technique [0002] Defoamer is a substance that can reduce the surface tension of water, solution, suspension, etc., prevent foam formation, or reduce or eliminate the original foam. It is widely used in coatings, textiles, medicine, fermentation, papermaking, water treatment and petrochemical industry. A large amount of foam will be generated in the production and application process of other fields, which will affect the product quality and production process. Based on the suppression and elimination of foam, a specific amount of defoamer is usually added to it during production. The defoamer has the following properties : ① strong defoaming power, less dosage; ② adding to the foaming system does not affect the basic properties of the system, that is, it does not react with the defoaming system; ③ small surface tension; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
CPCB01D19/0404B01D19/0409
Inventor 肖刚
Owner 传辰立新(厦门)科技有限公司
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