CN105289049A - Antifoaming agent - Google Patents
Antifoaming agent Download PDFInfo
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- CN105289049A CN105289049A CN201510778924.9A CN201510778924A CN105289049A CN 105289049 A CN105289049 A CN 105289049A CN 201510778924 A CN201510778924 A CN 201510778924A CN 105289049 A CN105289049 A CN 105289049A
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- silicone oil
- silicon oil
- defoamer
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Abstract
The invention discloses an antifoaming agent. The antifoaming agent is prepared from low-hydrogen silicone oil, amino silicon oil, 1.5% concentrated sulfuric acid, octamethylcyclotetrasiloxane, trifluoropropionic acid, polyether silicone oil, carboxymethyl cellulose sodium, and sorbitol. According to a preparation method, low-hydrogen silicone oil is subjected to chemical modification so as to obtain the antifoaming agent, defoaming speed of the antifoaming agent is increased greatly, foam inhibition performance is improved, using amount is one third less than that of common antifoaming agents, and the antifoaming agent possesses excellent water solubility.
Description
Technical field
The present invention relates to chemicals field, particularly relate to a kind of defoamer.
Background technology
Defoamer, is also called defrother or foamicide, can produce the foam that many impacts are produced in industrial process, needs to add defoamer.Be widely used in removing the unwanted bubbles produced in the industry production processes such as latex, textile sizing, food fermentation, biological medicine, coating, petrochemical industry, papermaking, industry cleaning link, sewage disposal.But, mostly there is the problem that antifoaming speed is slow, defoaming effect is not good enough in the defoamer that existing market produces.
Summary of the invention
The object of this invention is to provide a kind of defoamer.
The present invention is achieved through the following technical solutions:
A kind of defoamer, is made up of following composition, silicon oil of low hydrogen content 40 parts, amido silicon oil 8 parts, 1.5% concentrated sulfuric acid 1 part, octamethylcy-clotetrasiloxane 8 parts, trifluoroacetic acid 2 parts, polyether silicone oil 4 parts, sodium cellulose glycolate 3 parts, D-sorbite 2 parts by weight; It is made up of following making step:
1) in the first reactor, silicon oil of low hydrogen content is mixed with polyether silicone oil, then add 1.5% concentrated sulfuric acid, react 5-7 hour at 6-8Mpa pressure, at 58 DEG C;
2) by 1) in gained raw material add in the second reactor, when being heated to 80 DEG C, add amido silicon oil, when temperature rises to 120 DEG C, add octamethylcyclotetrasiloxane, when temperature is elevated to 160 DEG C, stop heat up, reaction 3-4 as a child, take out material;
3) by 2) in the material that takes out put into after colloid mill grinds 0.5-1 hour, then put into a mixing bowl, add D-sorbite, stir 30 minutes;
4) by 3) in material add sodium cellulose glycolate and trifluoroacetic acid, stir after 10 minutes, sealing 30-40 minute, then puts into homogenizer homogeneous 30-40 minute.
Further, the viscosity of described silicon oil of low hydrogen content is 650-700mPa.s, and hydrogen content is 0.15%.
Further, described amino silicone oil viscosity is 450-500mPa.s.
Further, the viscosity of described polyether silicone oil is 850-900mPa.s.
The invention has the beneficial effects as follows, compared with prior art:
Defoamer of the present invention by carrying out chemical modification process to silicon oil of low hydrogen content, then makes defoamer, can greatly improve the speed of defoamer froth breaking, presses down bubble ability strong, and the general defoamer of amount ratio few 1/3rd, has extraordinary aqueous phase dissolubility.
Detailed description of the invention
A kind of defoamer, is made up of following composition, silicon oil of low hydrogen content 40 parts, amido silicon oil 8 parts, 1.5% concentrated sulfuric acid 1 part, octamethylcy-clotetrasiloxane 8 parts, trifluoroacetic acid 2 parts, polyether silicone oil 4 parts, sodium cellulose glycolate 3 parts, D-sorbite 2 parts by weight; It is made up of following making step:
1) in the first reactor, silicon oil of low hydrogen content is mixed with polyether silicone oil, then add 1.5% concentrated sulfuric acid, react 5-7 hour at 6-8Mpa pressure, at 58 DEG C;
2) by 1) in gained raw material add in the second reactor, when being heated to 80 DEG C, add amido silicon oil, when temperature rises to 120 DEG C, add octamethylcyclotetrasiloxane, when temperature is elevated to 160 DEG C, stop heat up, reaction 3-4 as a child, take out material;
3) by 2) in the material that takes out put into after colloid mill grinds 0.5-1 hour, then put into a mixing bowl, add D-sorbite, stir 30 minutes;
4) by 3) in material add sodium cellulose glycolate and trifluoroacetic acid, stir after 10 minutes, sealing 30-40 minute, then puts into homogenizer homogeneous 30-40 minute.
Further, the viscosity of described silicon oil of low hydrogen content is 650-700mPa.s, and hydrogen content is 0.15%.
Further, described amino silicone oil viscosity is 450-500mPa.s.
Further, the viscosity of described polyether silicone oil is 850-900mPa.s.
Time by test comparison defoamer of the present invention and general defoamer various dose froth breaking:
| 0.05% | 0.1% | 0.15% | |
| Defoamer of the present invention | 3′20″ | 1′15″ | 30″ |
| General defoamer | 6′10″ | 3′01″ | 1′25″ |
Table 1
Can find out that defoamer of the present invention is shorter than general defoamer foam time by table 1, speed is faster.
Claims (4)
1. a defoamer, it is characterized in that, be made up of following composition by weight, silicon oil of low hydrogen content 40 parts, amido silicon oil 8 parts, 1.5% concentrated sulfuric acid 1 part, octamethylcy-clotetrasiloxane 8 parts, trifluoroacetic acid 2 parts, polyether silicone oil 4 parts, sodium cellulose glycolate 3 parts, D-sorbite 2 parts; It is made up of following making step:
1) in the first reactor, silicon oil of low hydrogen content is mixed with polyether silicone oil, then add 1.5% concentrated sulfuric acid, react 5-7 hour at 6-8Mpa pressure, at 58 DEG C;
2) by 1) in gained raw material add in the second reactor, when being heated to 80 DEG C, add amido silicon oil, when temperature rises to 120 DEG C, add octamethylcyclotetrasiloxane, when temperature is elevated to 160 DEG C, stop heat up, reaction 3-4 as a child, take out material;
3) by 2) in the material that takes out put into after colloid mill grinds 0.5-1 hour, then put into a mixing bowl, add D-sorbite, stir 30 minutes;
4) by 3) in material add sodium cellulose glycolate and trifluoroacetic acid, stir after 10 minutes, sealing 30-40 minute, then puts into homogenizer homogeneous 30-40 minute.
2. a kind of defoamer according to claim 1, is characterized in that, the viscosity of described silicon oil of low hydrogen content is 650-700mPa.s, and hydrogen content is 0.15%.
3. a kind of defoamer according to claim 1, is characterized in that, described amino silicone oil viscosity is 450-500mPa.s.
4. a kind of defoamer according to claim 1, is characterized in that, the viscosity of described polyether silicone oil is 850-900mPa.s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778924.9A CN105289049A (en) | 2015-11-13 | 2015-11-13 | Antifoaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778924.9A CN105289049A (en) | 2015-11-13 | 2015-11-13 | Antifoaming agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105289049A true CN105289049A (en) | 2016-02-03 |
Family
ID=55187282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510778924.9A Pending CN105289049A (en) | 2015-11-13 | 2015-11-13 | Antifoaming agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105289049A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224536A (en) * | 2018-08-02 | 2019-01-18 | 宣城市聚源精细化工有限公司 | A kind of preparation method for the defoaming agent that stability is good |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000040664A (en) * | 1998-12-19 | 2000-07-05 | 정주영 | Preparation method of antifoaming agent for waste water of washing machine |
| 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 |
| CN102949867A (en) * | 2012-09-19 | 2013-03-06 | 天津科创医药中间体技术生产力促进有限公司 | High-efficiency antifoaming agent |
| CN102961895A (en) * | 2011-11-17 | 2013-03-13 | 天津法莫西医药科技有限公司 | Preparation method of polyether modified polysiloxane defoaming agent |
| CN104452346A (en) * | 2014-12-04 | 2015-03-25 | 宿州市华润化工有限责任公司 | Organic silicon defoaming agent for textile printing and dyeing |
-
2015
- 2015-11-13 CN CN201510778924.9A patent/CN105289049A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000040664A (en) * | 1998-12-19 | 2000-07-05 | 정주영 | Preparation method of antifoaming agent for waste water of washing machine |
| 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 |
| CN102961895A (en) * | 2011-11-17 | 2013-03-13 | 天津法莫西医药科技有限公司 | Preparation method of polyether modified polysiloxane defoaming agent |
| CN102949867A (en) * | 2012-09-19 | 2013-03-06 | 天津科创医药中间体技术生产力促进有限公司 | High-efficiency antifoaming agent |
| CN104452346A (en) * | 2014-12-04 | 2015-03-25 | 宿州市华润化工有限责任公司 | Organic silicon defoaming agent for textile printing and dyeing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224536A (en) * | 2018-08-02 | 2019-01-18 | 宣城市聚源精细化工有限公司 | A kind of preparation method for the defoaming agent that stability is good |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160203 |
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| WD01 | Invention patent application deemed withdrawn after publication |