CN106362443A - Organic silicon defoaming agent with anti-cracking function - Google Patents
Organic silicon defoaming agent with anti-cracking function Download PDFInfo
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- CN106362443A CN106362443A CN201610934608.0A CN201610934608A CN106362443A CN 106362443 A CN106362443 A CN 106362443A CN 201610934608 A CN201610934608 A CN 201610934608A CN 106362443 A CN106362443 A CN 106362443A
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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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- Chemical Kinetics & Catalysis (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention discloses an organic silicon defoaming agent with an anti-cracking function. The defoaming agent is prepared from, by weight, 40-70 parts of simethicone, 20-30 parts of silicon dioxide, 10-20 parts of water, 1-2 parts of acrylic acid emulsion, 0.3-0.5 part of potassium iodide, 0.2-0.4 part of prenyl alcohol, 0.5-1 part of oxidized polyethlene wax, 0.3-0.5 part of kerosene, 0.4-0.8 part of tributyl citrate, 2-4 parts of calcium stearate, 0.4-0.8 part of nonylphenol polyoxyethylene ether, 2-4 parts of bentonite, 1-2 parts of stearamide, 1-2 parts of fatty acid and 0.2-0.4 part of butyl stearate.
Description
Technical field
The present invention relates to technical field of chemical synthesis, more particularly, to a kind of organic silicon defoamer with cracking resistance effect.
Background technology
During commercial production, if with the presence of substantial amounts of foam, many troubles can be brought, such as in production process
Production capacity can greatly be restricted；Cause the waste of raw material and product；Impact product quality；Pollution environment etc., therefore,
How to efficiently control foam in production process, become researcher emphasis of interest.Typically now eliminated with defoamer
The foam producing in commercial production.
Industrial conventional defoamer generally can be divided into organic defoamer, organic silicon defoamer and polyether-type defoamer etc. three
Class.Organic silicon defoamer is composited by a certain percentage by dimethicone and sio2.The defoamer so made has insoluble
Yu Shui, quite difficult emulsifying, surface viscosity is low, surface tension surface bullet that is lower than some surfactants and can disturbing foam film
The characteristics such as property, especially preferable to the defoaming effect of oil-soluble solution；The diffusibility of modified composite organic defoaming emulsion, froth breaking energy
Power and effect propety are more preferable.Belonging to such a large amount of defoamer using at present both at home and abroad more.
In current organic silicon defoamer, such as Chinese patent database, cn103830938b discloses. a kind of organic silicon defoamer
Preparation method, more complicated etc., its technological process, can not froth breaking, suds simultaneously, be unfavorable for being promoted the use of.And study
Show that the froth breaking of organic silicon defoamer and suds suppressing properties depend not only on the viscosity of used silicone oil, also disperseed by the middle of silicone oil
Granule hydrophobicity determine..
Content of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of organosilicon froth breaking with cracking resistance effect
Agent.
The present invention is achieved by the following technical solutions:
A kind of organic silicon defoamer with cracking resistance effect, it is to be obtained by the raw material of following weight parts: dimethicone 40-
70th, silicon dioxide 20-30, water 10-20, acrylic emulsion 1-2, potassium iodide 0.3-0.5, prenol 0.2-0.4, the poly- second of oxidation
Alkene wax 0.5-1, kerosene 0.3-0.5, tributyl citrate 0.4-0.8, calcium stearate 2-4, NPE 0.4-
0.8th, bentonite 2-4, stearmide 1-2, fatty acid 1-2, butyl stearate 0.2-0.4.
A kind of described organic silicon defoamer with cracking resistance effect, preparation method comprises the following steps:
(1) in concentration, the hydrochloric acid solution for 3-5% soaks 5-8 hour to bentonite, drains extruding in flakes, then is existed with revolving drier
Activate 20-30 minute at 230-250 DEG C, obtain activated powder after being ground into 150-250 mesh standby；
(2), after activated powder being mixed with silicon dioxide, kerosene, tributyl citrate, calcium stearate, add suitable quantity of water,
It is uniformly dispersed under 300-500rpm, then slurry is dried, ball milling 1.5-2h under the rotating speed under 200-400rpm, crosses 100-200
Mesh sieve, the powder of gained is mixed with NPE, OPE, ball milling under the rotating speed of 200-400rpm
0.5-2h, obtains hydrophobic material standby；
(3) dimethicone is placed in reactor, dimethicone in reactor is warmed up to 130-150 DEG C, keep reaction
80-90 rev/min of kettle rotating speed, adds potassium iodide, prenol, stirs 4-6 minute, adds hydrophobic material, be warming up to 150-160
DEG C, 50-60 rev/min of rotating speed, stir 8-12 minute, add remaining raw material and be cooled to 100-110 DEG C, 70-80 rev/min of rotating speed,
After stirring 30-50 minute, obtain final product.
The invention has the advantage that (1) present invention with the addition of the materials such as acrylic emulsion so that the defoamer of gained is using
When not only can froth breaking, suds, also there is certain effect of prestressed.Pass through again to add the things such as dispersant in defoamer
, so that product of the present invention has the good compatibility, antifoaming speed is fast, suds ability is strong, stable performance, adaptability are good, consumption for matter
Few.
(2) present invention carries out ball milling hydrophobically modified process by after the activation of bentonite powder together with silicon dioxide, obtains
The good filler of material hydrophobicity, redispersion, in silicone oil, can preferably increase froth breaking, the foam-inhibiting effect of the present invention, simultaneously
Environment protection health, has no side effect, and nanometer powder can obtain more preferable hydrophobicity, thus more preferable froth breaking, suds.
(3) defoamer of the present invention, not only froth breaking is fast, rejection is good, fundamental property that is not affecting bubbling system, and
Diffusibility, good penetrability, stable chemical nature, corrosion-free, nontoxic, no adverse side effect, safe..
Specific embodiment
A kind of organic silicon defoamer with cracking resistance effect, it is to be obtained by the raw material of following weight parts: dimethicone
40th, silicon dioxide 20, water 10, acrylic emulsion 1, potassium iodide 0.3, prenol 0.2, OPE 0.5, kerosene 0.3,
Tributyl citrate 0.4, calcium stearate 2, NPE 0.4, bentonite 2, stearmide 1, fatty acid 1, Hard Fat
Acid butyl ester 0.2.
A kind of described organic silicon defoamer with cracking resistance effect, preparation method comprises the following steps:
(1) bentonite soaks 5 hours in the hydrochloric acid solution that concentration is 3%, drains extruding in flakes, then with revolving drier at 230 DEG C
Lower activation 20 minutes, obtains activated powder after being ground into 150 mesh standby；
(2), after activated powder being mixed with silicon dioxide, kerosene, tributyl citrate, calcium stearate, add suitable quantity of water,
It is uniformly dispersed under 300rpm, then slurry is dried, ball milling 1.5h under rotating speed at 200 rpm, crosses 100 mesh sieves, the powder of gained
Mix with NPE, OPE, ball milling 0.5h under the rotating speed of 200rpm, obtain hydrophobic material standby；
(3) dimethicone is placed in reactor, dimethicone in reactor is warmed up to 130 DEG C, keep reactor to turn
80 revs/min of speed, adds potassium iodide, prenol, stirs 4 minutes, adds hydrophobic material, be warming up to 150 DEG C, and 50 turns of rotating speed/
Point, stir 8 minutes, add remaining raw material and be cooled to 100 DEG C, 70 revs/min of rotating speed, after stirring 30 minutes, obtain final product.
The performance measurement of the present embodiment: take expanding foam solution 100ml in the graduated cylinder marking graduated 250ml, in Vertical Vibrating
Swing in device with the hunting of frequency 5min of 300 times/min, be subsequently added into 0.2ml the present embodiment organic
Silicon defoaming agent；Test takes conventional commercial organic silicon defoamer equally to be processed as a comparison；Record the wink of the present embodiment
Between froth breaking speed be 26ml/s, foam time 58s, suds time 83s；Moment froth breaking better than conventional commercial organic silicon defoamer
Speed is 30ml/s, foam time 70s, suds time 79s.
Claims (2)
1. a kind of have cracking resistance effect organic silicon defoamer it is characterised in that: it is to be obtained by the raw material of following weight parts: two
Methyl-silicone oil 40-70, silicon dioxide 20-30, water 10-20, acrylic emulsion 1-2, potassium iodide 0.3-0.5, prenol 0.2-
0.4th, OPE 0.5-1, kerosene 0.3-0.5, tributyl citrate 0.4-0.8, calcium stearate 2-4, polyoxyethylene nonyl phenyl
Vinyl Ether 0.4-0.8, bentonite 2-4, stearmide 1-2, fatty acid 1-2, butyl stearate 0.2-0.4.
2. according to claim 1 a kind of have cracking resistance effect organic silicon defoamer it is characterised in that: preparation method bag
Include following steps:
(1) in concentration, the hydrochloric acid solution for 3-5% soaks 5-8 hour to bentonite, drains extruding in flakes, then is existed with revolving drier
Activate 20-30 minute at 230-250 DEG C, obtain activated powder after being ground into 150-250 mesh standby；
(2), after activated powder being mixed with silicon dioxide, kerosene, tributyl citrate, calcium stearate, add suitable quantity of water,
It is uniformly dispersed under 300-500rpm, then slurry is dried, ball milling 1.5-2h under the rotating speed under 200-400rpm, crosses 100-200
Mesh sieve, the powder of gained is mixed with NPE, OPE, ball milling under the rotating speed of 200-400rpm
0.5-2h, obtains hydrophobic material standby；
(3) dimethicone is placed in reactor, dimethicone in reactor is warmed up to 130-150 DEG C, keep reaction
80-90 rev/min of kettle rotating speed, adds potassium iodide, prenol, stirs 4-6 minute, adds hydrophobic material, be warming up to 150-160
DEG C, 50-60 rev/min of rotating speed, stir 8-12 minute, add remaining raw material and be cooled to 100-110 DEG C, 70-80 rev/min of rotating speed,
After stirring 30-50 minute, obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610934608.0A CN106362443A (en) | 2016-11-01 | 2016-11-01 | Organic silicon defoaming agent with anti-cracking function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610934608.0A CN106362443A (en) | 2016-11-01 | 2016-11-01 | Organic silicon defoaming agent with anti-cracking function |
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| Publication Number | Publication Date |
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| CN106362443A true CN106362443A (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610934608.0A Withdrawn CN106362443A (en) | 2016-11-01 | 2016-11-01 | Organic silicon defoaming agent with anti-cracking function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108671589A (en) * | 2018-08-13 | 2018-10-19 | 佛山市三水万瑞达环保科技有限公司 | A kind of novel environment friendly water-oil separating composite anti-foaming agent and preparation method thereof |
| CN110075573A (en) * | 2019-05-22 | 2019-08-02 | 江苏长丰有机硅有限公司 | A kind of silicate-containing oil and the defoaming agent of epoxidized soybean oil and preparation method thereof |
| CN111389056A (en) * | 2020-03-03 | 2020-07-10 | 华南理工大学 | Method for improving white carbon black sedimentation problem in mineral oil defoaming agent by using bentonite |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688452A (en) * | 2016-04-19 | 2016-06-22 | 福州大学 | Emulsion-type organosilicone defoamer and preparation method thereof |
-
2016
- 2016-11-01 CN CN201610934608.0A patent/CN106362443A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688452A (en) * | 2016-04-19 | 2016-06-22 | 福州大学 | Emulsion-type organosilicone defoamer and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108671589A (en) * | 2018-08-13 | 2018-10-19 | 佛山市三水万瑞达环保科技有限公司 | A kind of novel environment friendly water-oil separating composite anti-foaming agent and preparation method thereof |
| CN110075573A (en) * | 2019-05-22 | 2019-08-02 | 江苏长丰有机硅有限公司 | A kind of silicate-containing oil and the defoaming agent of epoxidized soybean oil and preparation method thereof |
| CN110075573B (en) * | 2019-05-22 | 2021-08-17 | 江苏长丰有机硅有限公司 | Defoaming agent containing silicone oil and epoxidized soybean oil and preparation method thereof |
| CN111389056A (en) * | 2020-03-03 | 2020-07-10 | 华南理工大学 | Method for improving white carbon black sedimentation problem in mineral oil defoaming agent by using bentonite |
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Application publication date: 20170201 |
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