CN102059006A - Defoaming agent composition - Google Patents
Defoaming agent composition Download PDFInfo
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- CN102059006A CN102059006A CN200910198853XA CN200910198853A CN102059006A CN 102059006 A CN102059006 A CN 102059006A CN 200910198853X A CN200910198853X A CN 200910198853XA CN 200910198853 A CN200910198853 A CN 200910198853A CN 102059006 A CN102059006 A CN 102059006A
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Abstract
The invention provides a defoaming agent composition, which comprises the following components in part by weight: 35 to 65 parts of organic silicon polyether surfactant, 20 to 30 parts of mineral oil, 1 to 2 parts of hydrophobic modified thickener, 2 to 3 parts of mildew-proof agent and 2 to 3 parts of anti-rusting agent. The foaming agent has excellent foam eliminating and inhibiting performance, can be used for eliminating and cleaning aqueous phase foam in the production processes of the industries of chemicals, water treatment, paper making and the like, can also be used as a foam inhibiting component in printing and dyeing, water treatment, cleaning, daily chemical auxiliary agents and mechanical auxiliary agents, and is particularly suitable to be used as a foam eliminating and inhibiting component in high-alkali detergents for beer bottles, milk bottles and the like.
Description
Technical field
The present invention relates to the defoamer field, more specifically, the present invention relates to a kind of novel polysiloxane modification adhesive defoamer.
Background technology
The existence of foam brings obstruction can for production and product application in the industrial processes, must eliminate foam, and employing adding defoamer waits and achieves the goal usually, so defoamer must possess froth breaking and press down the bubble function.Froth breaking is mainly according to the Ross theory, and defoamer must have " insoluble " for foaming solution, and can be scattered in the foam liquid easily.Good defoamer can also can be kept non-foaming except breaking bubble fast within a certain period of time.
For overcome adhesive especially the stickiness monomer more be that the adhesive of solvent is coated with the defective that produces foam in the membrane process in synthetic, storing and processing with water, overcome at blooming of occurring of high-speed coating process, shrinkage cavity defect, must be added into the defoamer good with the adhesive compatibility, that the dynamic defoaming performance is good.
Tradition organosilicon type defoamer can form low skin covering of the surface in medium, it can reduce the surface tension of gas-liquid two-phase, thereby destroy the stability of air bubble, air bubble is constantly broken, the synthetic bigger bubble of migration, thereby reach the purpose of froth breaking, and organosilicon type defoamer also has the significant bubble effect that presses down, when destroying foam, also can prevent the generation of foam, it has advantages such as consumption is few, applied range, chemical inert, but the compatibility of organosilicon type defoamer poor, be difficult to emulsification and disperse, and the wall built-up defective is arranged.
Block polyether is the very effective macromolecule defoamer of a class, belong to third generation defoamer product, it can enter in the foam bimolecular film, cause the local reduction of surface tension in the film, the remainder of film is then still keeping bigger surface tension, this surface tension difference makes than high tension and is drawing the more weak part of this tension force, thereby cause breaking of foam, but must be greater than 50um as its emulsified particles of defoamer, otherwise can only aggravate the generation of foam or foam is had stabilization, thereby have certain defective in concrete production and in using.
Defective at above-mentioned two defoamers, some inventors have done improvement to a certain degree, such as the polysilane resins with trimethyl silicon chloride and silicon tetrachloride condensation is the defoamer hydrophobic segment, more further with the condensation of hydrophilic segment polyalkenylalcohols, thereby constitute novel defoamer; It and for example is the novel defoamer of formation of composition with polysiloxanes and ethylene glycol type copolymer, polyethylene glycol and non-ionic surface active agent, but the synthetic conversion ratio of the hydrophilic segment of the two grafting is not too high (having only about 30～50%), a large amount of new water segments is present in product and the final defoamer product with the unreacted reactant form, basically be that a class is carried out the composite resultant and product of physics with polysiloxane and polyethers, thereby antifoam performance can not be greatly improved.
Organic silicon polyether modification defoamer then combines the advantage of said two devices, have splendid surface-active and splendid compatibility, be the nonionic defoamer of the volume production seventies in last century, can be applied to the defoamer compatibility require high different viscositys have/the adhesive system of no pigment, filler in.
The process that the applies forward high speed of adhesive in addition, the automation direction development.Apply with pressure sensitive adhesive and to be example, the coating speed of water-borne pressure sensitive adhesive is 150～180m/s at present, and the technology of foreign latest is 300～500m/s, the wide 2m of base material, the thick 10～15um of base film, the about 15～20um of gluing wet-film thickness.It is strong that so fast coating speed requires the defoamer froth breaking to press down the bubble ability, otherwise the local shrinkage cavity or the defective of blooming that cause because of defoamer can cause the film coated surface became uneven, in high temperature (the parking accident that can cause the ground fracture for 110 ~ C) times, the parking accident of pressure sensitive adhesive factory permission at present is 1 time/3 days, thereby very strict to the defoamer performance requirement.
The defoamer that present adhesive field is selected for use has 8034A and DF 691 etc., and homemade silicone defoaming agent emulsion.Their defective is all relatively poor with the compatibility of glue, and dispersive property is bad, and the polysiloxanes that contains the compatibility difference (silicone oil) composition without exception, usually can cause the parking accident to take place, and the outward appearance of product is relatively poor, and it is opaque to film etc.
In order to overcome the above problems, the present inventor has designed a kind of defoaming agent composition, thereby has finished the present invention by the composition Study to defoamer.
The object of the present invention is to provide a kind of defoaming agent composition.
Summary of the invention
The invention provides a kind of defoaming agent composition, described composition component by weight is: silicone polyether surfactant 35-65 part, mineral oil 20-30 part, hydrophobically modified thickener 1-2 part, mould inhibitor 2-3 part, antirust agent 2-3 part.
According to defoaming agent composition of the present invention, described mineral oil is the aromatic radical that contains 6-8 carbon, the straight or branched hydroxyl of the amino of a 3-6 ammonia or 6-10 carbon.
According to defoaming agent composition of the present invention, described hydrophobically modified thickener is aerosil or rilanit special.
According to defoaming agent composition of the present invention, described antirust agent is organic acid sodium salt.
Beneficial effect of the present invention is:
1) saved the operation that other defoamer adds a large amount of emulsifying agents, reduced the consumption of surfactant generally, avoided in the subsequent applications because of introducing the product degradation phenomena that emulsifying agent occurs.
2) the hydrophobic composition decapacitation in the composition rises outside the regulating action defoamer system viscosity, can also puncture the elastic film of foam in defoamer froth breaking process, thereby accelerates froth breaking and press down the bubble process.
3) the hydrophobically modified thickener in the composition can also be regulated the pH value of product, prevents the oxidation deterioration of some composition in the final product such as mineral wet goods.
4) defoaming agent composition has quick dispersion and in the surface spreading ability at the adhesive product surface of different viscositys, thereby can save the defoamer consumption.
5) composition product good stability can not occur such as defectives such as the branch water that occurs in mineral oil defoaming agent and the organic silicone oil defoamer storage process, layerings.
The specific embodiment
Below for a more detailed description with embodiment to the present invention.These embodiment only are the descriptions to best mode for carrying out the invention, scope of the present invention are not had any restriction.
Embodiment 1
At first in 50～80 ℃ temperature downhill reaction still, add mineral oil, be warming up to 120～180 ℃, add the hydrophobically modified thickener, and about 150 ℃, stir slaking 10～15 hours, reduce to normal temperature then, add silicone polyether surfactant, mould inhibitor, antirust agent, mix under high speed dispersion, discharging gets product.Wherein 35 parts of silicone polyether surfactants, 30 parts in mineral oil, 2 parts of hydrophobically modified thickeners, 2 parts of mould inhibitors, 2 parts of antirust agent.
Embodiment 2
Except 50 parts of silicone polyether surfactants, 25 parts in mineral oil, 2 parts of hydrophobically modified thickeners, 3 parts of mould inhibitors, 3 parts of antirust agent., all the other embodiments are with embodiment 1.
Embodiment 3
Except 60 parts of silicone polyether surfactants, 30 parts in mineral oil, 2 parts of hydrophobically modified thickeners, 2 parts of mould inhibitors, 3 parts of antirust agent., all the other embodiments are with embodiment 1.
Embodiment 4
Except 65 parts of silicone polyether surfactants, 28 parts in mineral oil, 1 part of hydrophobically modified thickener, 3 parts of mould inhibitors, 3 parts of antirust agent., all the other embodiments are with embodiment 1.
Defoaming powder of the present invention have excellent disappear, suds suppressing properties, can be used for eliminating the water foam in the industry production processes such as cleaning, chemical industry, water treatment, papermaking, but also can be used as the part that soaks in various printing and dyeing, water treatment, cleaning, daily use chemicals auxiliary agent, the mechanical auxiliary agent, be particularly suitable for doing disappearing in beer bottle, the contour alkaline cleaner of feeding bottle and press down the bubble component.
Claims (4)
1. a defoaming agent composition is characterized in that, described composition component by weight is: silicone polyether surfactant 35-65 part, mineral oil 20-30 part, hydrophobically modified thickener 1-2 part, mould inhibitor 2-3 part, antirust agent 2-3 part.
2. defoaming agent composition according to claim 1 is characterized in that, described mineral oil is the aromatic radical that contains 6-8 carbon, the straight or branched hydroxyl of the amino of a 3-6 ammonia or 6-10 carbon.
3. defoaming agent composition according to claim 1 is characterized in that, described hydrophobically modified thickener is aerosil or rilanit special.
4. defoaming agent composition according to claim 1 is characterized in that, described antirust agent is organic acid sodium salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198853XA CN102059006A (en) | 2009-11-17 | 2009-11-17 | Defoaming agent composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198853XA CN102059006A (en) | 2009-11-17 | 2009-11-17 | Defoaming agent composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102059006A true CN102059006A (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910198853XA Pending CN102059006A (en) | 2009-11-17 | 2009-11-17 | Defoaming agent composition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096384A (en) * | 2014-05-12 | 2014-10-15 | 青岛蓬勃石油技术服务有限公司 | Antifoaming agent and preparation method thereof |
| WO2019232982A1 (en) * | 2018-06-07 | 2019-12-12 | 江苏四新科技应用研究所股份有限公司 | Non-silicon defoaming agent and preparation method therefor |
| CN111974030A (en) * | 2020-09-07 | 2020-11-24 | 安徽銮威化工科技开发有限公司 | Defoaming agent for methanol protein production and preparation method thereof |
| CN115414709A (en) * | 2022-09-23 | 2022-12-02 | 江苏四新界面剂科技有限公司 | Defoaming agent for soybean protein and preparation method thereof |
-
2009
- 2009-11-17 CN CN200910198853XA patent/CN102059006A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096384A (en) * | 2014-05-12 | 2014-10-15 | 青岛蓬勃石油技术服务有限公司 | Antifoaming agent and preparation method thereof |
| WO2019232982A1 (en) * | 2018-06-07 | 2019-12-12 | 江苏四新科技应用研究所股份有限公司 | Non-silicon defoaming agent and preparation method therefor |
| CN111974030A (en) * | 2020-09-07 | 2020-11-24 | 安徽銮威化工科技开发有限公司 | Defoaming agent for methanol protein production and preparation method thereof |
| CN115414709A (en) * | 2022-09-23 | 2022-12-02 | 江苏四新界面剂科技有限公司 | Defoaming agent for soybean protein and preparation method thereof |
| CN115414709B (en) * | 2022-09-23 | 2023-10-03 | 江苏四新界面剂科技有限公司 | Defoaming agent for soybean protein and preparation method thereof |
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Application publication date: 20110518 |