CN106267914A - A kind of efficient compound defoamer and preparation method thereof - Google Patents
A kind of efficient compound defoamer and preparation method thereof Download PDFInfo
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- CN106267914A CN106267914A CN201610789651.2A CN201610789651A CN106267914A CN 106267914 A CN106267914 A CN 106267914A CN 201610789651 A CN201610789651 A CN 201610789651A CN 106267914 A CN106267914 A CN 106267914A
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- polydimethylsiloxane
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- fatty acid
- acid ester
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
- B01D19/0409—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing Si-atoms
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Abstract
The present invention proposes a kind of efficient compound defoamer and preparation method thereof, the present invention uses modified polyorganosiloxane as main froth breaking composition, by introducing hydrophilic group on polysiloxanes, improve the compatibility with foaming system, and improve the dispersibility of product, avoid the various drawbacks using pure organic silicon defoamer to bring, and froth breaking and the suds ability of product can be significantly improved.
Description
Technical field
The present invention relates to defoamer synthesis technical field, particularly relate to a kind of efficient compound defoamer and preparation side thereof
Method.
Background technology
In the industrial production, substantial amounts of foam can be produced, bring various trouble to production and processing, such as: produce
Ability significantly limits, causes raw material and the waste of product, the reaction time of prolongation production, affects product quality, pollution environment etc.
Deng.Have to eliminate foam the most in the industrial production, most common method is to add defoamer, and the kind of defoamer is a lot,
Effect most preferably organic silicon defoamer, but the hydrophobic performance of organosilicon is very strong, causes pure organic silicon defoamer using
In easily produce the phenomenons such as silicon speckle, shrinkage cavity, reunion, cannot use in industries such as water color ink, textile printing and dyeing, papermaking.
Summary of the invention
In view of this, the present invention propose that a kind of dispersion effect is good, froth breaking and the strong efficient compound froth breaking of suds ability
Agent and preparation method thereof.
The technical scheme is that and be achieved in that: on the one hand, the invention provides a kind of efficient compound defoamer,
It includes the component of following mass fraction,
Polydimethylsiloxane 3-7 part；
Long chain alkyl modified polydimethylsiloxane 12-18 part；
Polyether-modified polydimethylsiloxane 8-12 part；
Water 50-70 part；
Sorbitol anhydride monostearate 1-5 part；
Single, diglycerine fatty acid ester 1-5 part；
Sorbitan fatty acid ester polyoxyethylene ether 0.5-1.5 part；
Hydrophobic silica 0.5-1.5 part；
Sodium carboxymethyl cellulose 0.5-1.5 part.
On the basis of above technical scheme, it is preferred that described efficient compound defoamer includes following mass fraction
Component,
Polydimethylsiloxane 5 parts；
Long chain alkyl modified polydimethylsiloxane 15 parts；
Polyether-modified polydimethylsiloxane 10 parts；
60 parts of water；
Sorbitol anhydride monostearate 3 parts；
Single, diglycerine fatty acid ester 3 parts；
Sorbitan fatty acid ester polyoxyethylene ether 1 part；
Hydrophobic silica 1 part；
Sodium carboxymethyl cellulose 1 part.
Second aspect present invention provides the preparation method of efficient compound defoamer described in first aspect, and it includes following
Step,
S1, mixes sodium carboxymethyl cellulose with water, is warmed up to 70-90 DEG C, makes sodium carboxymethyl cellulose be completely dissolved,
To aqueous thickener solution；
S2, by polydimethylsiloxane, long chain alkyl modified polydimethylsiloxane, polyether-modified polydimethylsiloxanes
Alkane, sorbitol anhydride monostearate, sorbitan fatty acid ester polyoxyethylene ether, list, diglycerine fatty acid ester and hydrophobic two
Silicon oxide, puts in reactor together, is warmed up to 60-70 DEG C, stirring insulation 0.5-1.5 hour, is slowly dropped into step S1 and obtains
Aqueous thickener solution, stirring insulation 0.5-1.5 hour, cooling, filter i.e. obtain efficient compound defoamer finished product.
On the basis of above technical scheme, it is preferred that the preparation bag of described long chain alkyl modified polydimethylsiloxane
Include following steps, by containing hydrogen silicone oil that hydrogen content is 0.2-0.8 and 16 alkene, put in reactor together, be warmed up to 85-95
DEG C, evacuation is dehydrated 0.4-0.6 hour, is then warmed up between 120-140 DEG C reaction 2-4 hour, i.e. prepares chain alkyl and change
Property polydimethylsiloxane.
On the basis of above technical scheme, it is preferred that the preparation of described polyether-modified polydimethylsiloxane include with
Lower step, by containing hydrogen silicone oil that hydrogen content is 0.2-0.8 and 1-propenol-3 polyoxyalkyl ether, puts in reactor together, is warmed up to
85-95 DEG C, evacuation is dehydrated 0.4-0.6 hour, is then warmed up between 120-140 DEG C reaction 2-4 hour, i.e. prepares polyethers and change
Property polydimethylsiloxane.
Efficient compound defoamer of the present invention and preparation method thereof has the advantages that this relative to prior art
Invention uses modified polyorganosiloxane as main froth breaking composition, by introducing hydrophilic group on polysiloxanes, improves and foams
The compatibility of system, and improve the dispersibility of product, it is to avoid the various drawbacks that the pure organic silicon defoamer of use brings, and
And froth breaking and the suds ability of product can be significantly improved.
Detailed description of the invention
Below in conjunction with embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment described is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment party that those of ordinary skill in the art are obtained under not making creative work premise
Formula, broadly falls into the scope of protection of the invention.
Embodiment 1
The efficient compound defoamer of the present embodiment, its composition of raw materials is as follows:
Polydimethylsiloxane 3kg；
Long chain alkyl modified polydimethylsiloxane 12kg；
Polyether-modified polydimethylsiloxane 8kg；
Water 50kg；
Sorbitol anhydride monostearate 1kg；
Single, diglycerine fatty acid ester 1kg；
Sorbitan fatty acid ester polyoxyethylene ether 0.5kg；
Hydrophobic silica 0.5kg；
Sodium carboxymethyl cellulose 0.5kg.
Preparation process is as follows:
First, long chain alkyl modified polydimethylsiloxane is prepared.By containing hydrogen silicone oil that hydrogen content is 0.2 and 16 alkene,
Putting in reactor together, be warmed up to 85 DEG C, evacuation is dehydrated 0.4 hour, is then warmed up to 120 DEG C and reacts 2 hours, the most prepared
Long chain alkyl modified polydimethylsiloxane.
Secondly, polyether-modified polydimethylsiloxane is prepared.By containing hydrogen silicone oil that hydrogen content is 0.2 and 1-propenol-3 polyoxy alkane
Base ether, puts in reactor together, is warmed up to 85 DEG C, and evacuation is dehydrated 0.4 hour, is then warmed up to 120 DEG C and reacts 2 hours,
I.e. prepare polyether-modified polydimethylsiloxane.
Then, sodium carboxymethyl cellulose is mixed with water, be warmed up to 70 DEG C, make sodium carboxymethyl cellulose be completely dissolved,
To aqueous thickener solution；
Finally, by polydimethylsiloxane, long chain alkyl modified polydimethylsiloxane, polyether-modified polydimethylsiloxanes
Alkane, sorbitol anhydride monostearate, sorbitan fatty acid ester polyoxyethylene ether, list, diglycerine fatty acid ester and hydrophobic two
Silicon oxide, puts in reactor together, is warmed up to 60 DEG C, adjusts speed of agitator to 600 revs/min, is incubated 0.5 hour, slowly drips
Enter aqueous thickener solution, adjust the rotating speed to 1000 revs/min of stirring, be incubated 0.5 hour, cooling, filter and i.e. obtain high efficiency composition
Type defoamer finished product.
Embodiment 2
The efficient compound defoamer of the present embodiment, its composition of raw materials is as follows:
Polydimethylsiloxane 5kg；
Long chain alkyl modified polydimethylsiloxane 15kg；
Polyether-modified polydimethylsiloxane 10kg；
Water 60kg；
Sorbitol anhydride monostearate 3kg；
Single, diglycerine fatty acid ester 3kg；
Sorbitan fatty acid ester polyoxyethylene ether 1kg；
Hydrophobic silica 1kg；
Sodium carboxymethyl cellulose 1kg.
Preparation process is as follows:
First, long chain alkyl modified polydimethylsiloxane is prepared.By containing hydrogen silicone oil that hydrogen content is 0.5 and 16 alkene,
Putting in reactor together, be warmed up to 90 DEG C, evacuation is dehydrated 0.5 hour, is then warmed up to 130 DEG C and reacts 3 hours, the most prepared
Long chain alkyl modified polydimethylsiloxane.
Secondly, polyether-modified polydimethylsiloxane is prepared.By containing hydrogen silicone oil that hydrogen content is 0.5 and 1-propenol-3 polyoxy alkane
Base ether, puts in reactor together, is warmed up to 90 DEG C, and evacuation is dehydrated 0.5 hour, is then warmed up to 130 DEG C and reacts 3 hours,
I.e. prepare polyether-modified polydimethylsiloxane.
Then, sodium carboxymethyl cellulose is mixed with water, be warmed up to 80 DEG C, make sodium carboxymethyl cellulose be completely dissolved,
To aqueous thickener solution；
Finally, by polydimethylsiloxane, long chain alkyl modified polydimethylsiloxane, polyether-modified polydimethylsiloxanes
Alkane, sorbitol anhydride monostearate, sorbitan fatty acid ester polyoxyethylene ether, list, diglycerine fatty acid ester and hydrophobic two
Silicon oxide, puts in reactor together, is warmed up to 65 DEG C, adjusts speed of agitator to 600 revs/min, is incubated 1 hour, is slowly dropped into
Aqueous thickener solution, adjusts the rotating speed to 1100 revs/min of stirring, is incubated 1 hour, cooling, and filtration i.e. obtains efficient compound and disappears
Infusion finished product.
Embodiment 3
The efficient compound defoamer of the present embodiment, its composition of raw materials is as follows:
Polydimethylsiloxane 7kg；
Long chain alkyl modified polydimethylsiloxane 18kg；
Polyether-modified polydimethylsiloxane 12kg；
Water 70kg；
Sorbitol anhydride monostearate 5kg；
Single, diglycerine fatty acid ester 5kg；
Sorbitan fatty acid ester polyoxyethylene ether 1.5kg；
Hydrophobic silica 1.5kg；
Sodium carboxymethyl cellulose 1.5kg.
Preparation process is as follows:
First, long chain alkyl modified polydimethylsiloxane is prepared.By containing hydrogen silicone oil that hydrogen content is 0.8 and 16 alkene,
Putting in reactor together, be warmed up to 95 DEG C, evacuation is dehydrated 0.6 hour, is then warmed up to 140 DEG C and reacts 4 hours, the most prepared
Long chain alkyl modified polydimethylsiloxane.
Secondly, polyether-modified polydimethylsiloxane is prepared.By containing hydrogen silicone oil that hydrogen content is 0.8 and 1-propenol-3 polyoxy alkane
Base ether, puts in reactor together, is warmed up to 95 DEG C, and evacuation is dehydrated 0.6 hour, is then warmed up between 140 DEG C reaction 4 little
Time, i.e. prepare polyether-modified polydimethylsiloxane.
Then, sodium carboxymethyl cellulose is mixed with water, be warmed up to 90 DEG C, make sodium carboxymethyl cellulose be completely dissolved,
To aqueous thickener solution；
Finally, by polydimethylsiloxane, long chain alkyl modified polydimethylsiloxane, polyether-modified polydimethylsiloxanes
Alkane, sorbitol anhydride monostearate, sorbitan fatty acid ester polyoxyethylene ether, list, diglycerine fatty acid ester and hydrophobic two
Silicon oxide, puts in reactor together, is warmed up to 70 DEG C, adjusts speed of agitator to 600 revs/min, is incubated 1.5 hours, slowly drips
Enter aqueous thickener solution, adjust the rotating speed to 1100 revs/min of stirring, be incubated 1.5 hours, cooling, filter and i.e. obtain high efficiency composition
Type defoamer finished product.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. an efficient compound defoamer, it is characterised in that: it includes the component of following mass fraction,
Polydimethylsiloxane 3-7 part；
Long chain alkyl modified polydimethylsiloxane 12-18 part；
Polyether-modified polydimethylsiloxane 8-12 part；
Water 50-70 part；
Sorbitol anhydride monostearate 1-5 part；
Single, diglycerine fatty acid ester 1-5 part；
Sorbitan fatty acid ester polyoxyethylene ether 0.5-1.5 part；
Hydrophobic silica 0.5-1.5 part；
Sodium carboxymethyl cellulose 0.5-1.5 part.
2. efficient compound defoamer as claimed in claim 1, it is characterised in that: it includes the component of following mass fraction,
Polydimethylsiloxane 5 parts；
Long chain alkyl modified polydimethylsiloxane 15 parts；
Polyether-modified polydimethylsiloxane 10 parts；
60 parts of water；
Sorbitol anhydride monostearate 3 parts；
Single, diglycerine fatty acid ester 3 parts；
Sorbitan fatty acid ester polyoxyethylene ether 1 part；
Hydrophobic silica 1 part；
Sodium carboxymethyl cellulose 1 part.
3. the preparation method of efficient compound defoamer as claimed in claim 1, it is characterised in that: it comprises the following steps,
S1, mixes sodium carboxymethyl cellulose with water, is warmed up to 70-90 DEG C, makes sodium carboxymethyl cellulose be completely dissolved, is increased
Thick dose of aqueous solution；
S2, by polydimethylsiloxane, long chain alkyl modified polydimethylsiloxane, polyether-modified polydimethylsiloxane, mountain
Pears alcohol acid anhydride monostearate, sorbitan fatty acid ester polyoxyethylene ether, list, diglycerine fatty acid ester and hydrophobic titanium dioxide
Silicon, puts in reactor together, is warmed up to 60-70 DEG C, stirring insulation 0.5-1.5 hour, is slowly dropped into the increasing that step S1 obtains
Thick dose of aqueous solution, stirring insulation 0.5-1.5 hour, cooling, filter and i.e. obtain efficient compound defoamer finished product.
4. the preparation method of efficient compound defoamer as claimed in claim 3, it is characterised in that: described long chain alkyl modified
The preparation of polydimethylsiloxane comprises the following steps, and by containing hydrogen silicone oil that hydrogen content is 0.2-0.8 and 16 alkene, puts into together
In reactor, being warmed up to 85-95 DEG C, evacuation is dehydrated 0.4-0.6 hour, is then warmed up between 120-140 DEG C react 2-4 little
Time, i.e. prepare long chain alkyl modified polydimethylsiloxane.
5. the preparation method of efficient compound defoamer as claimed in claim 3, it is characterised in that: described polyether-modified poly-two
The preparation of methylsiloxane comprises the following steps, by containing hydrogen silicone oil that hydrogen content is 0.2-0.8 and 1-propenol-3 polyoxyalkyl ether, and one
Rising in input reactor, be warmed up to 85-95 DEG C, evacuation is dehydrated 0.4-0.6 hour, is then warmed up between 120-140 DEG C anti-
Answer 2-4 hour, i.e. prepare polyether-modified polydimethylsiloxane.
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| CN201610789651.2A CN106267914A (en) | 2016-08-31 | 2016-08-31 | A kind of efficient compound defoamer and preparation method thereof |
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| CN201610789651.2A CN106267914A (en) | 2016-08-31 | 2016-08-31 | A kind of efficient compound defoamer and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031150A (en) * | 2017-12-14 | 2018-05-15 | 佛山市彩贵新型材料有限公司 | Antifoaming speed is fast, the preparation method of suds time long defoamer |
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| CN102286203A (en) * | 2011-06-29 | 2011-12-21 | 南京四新科技应用研究所有限公司 | Method for improving stability of organic silicone emulsion |
| CN102284198A (en) * | 2011-05-18 | 2011-12-21 | 黄山市强力化工有限公司 | Water-soluble polyether modified organic silicon defoaming agent as well as preparation and compounding methods thereof |
| CN103272411A (en) * | 2013-06-07 | 2013-09-04 | 南京四新科技应用研究所有限公司 | Foam inhibitor and preparation method thereof |
| CN104069654A (en) * | 2014-07-01 | 2014-10-01 | 西安道尔达化工有限公司 | Preparation method of high-viscosity organic silicon defoamer |
| CN105498305A (en) * | 2015-12-15 | 2016-04-20 | 江苏四新科技应用研究所股份有限公司 | Organic silicon defoaming composition |
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2016
- 2016-08-31 CN CN201610789651.2A patent/CN106267914A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284198A (en) * | 2011-05-18 | 2011-12-21 | 黄山市强力化工有限公司 | Water-soluble polyether modified organic silicon defoaming agent as well as preparation and compounding methods thereof |
| CN102286203A (en) * | 2011-06-29 | 2011-12-21 | 南京四新科技应用研究所有限公司 | Method for improving stability of organic silicone emulsion |
| CN103272411A (en) * | 2013-06-07 | 2013-09-04 | 南京四新科技应用研究所有限公司 | Foam inhibitor and preparation method thereof |
| CN104069654A (en) * | 2014-07-01 | 2014-10-01 | 西安道尔达化工有限公司 | Preparation method of high-viscosity organic silicon defoamer |
| CN105498305A (en) * | 2015-12-15 | 2016-04-20 | 江苏四新科技应用研究所股份有限公司 | Organic silicon defoaming composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031150A (en) * | 2017-12-14 | 2018-05-15 | 佛山市彩贵新型材料有限公司 | Antifoaming speed is fast, the preparation method of suds time long defoamer |
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Application publication date: 20170104 |