CN1426828A - Emulsion type defoaming agent - Google Patents
Emulsion type defoaming agent Download PDFInfo
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- CN1426828A CN1426828A CN 01144354 CN01144354A CN1426828A CN 1426828 A CN1426828 A CN 1426828A CN 01144354 CN01144354 CN 01144354 CN 01144354 A CN01144354 A CN 01144354A CN 1426828 A CN1426828 A CN 1426828A
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- mass parts
- defoamer
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- Degasification And Air Bubble Elimination (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
An emulsion-type defoaming agent for anionic or non-ionic foaming agent used in production of rubber and plastics is prepared from hydrocarbonylated oil 40-60 wt. portions, C4-C8 alcohol amine 10-35 portions and C10-C18 fatty acid 10-40 portions through esterifying at 70-150 deg.c for 30-150 min, and further mixing with codefoaming agent 5-15 portions and disperser 3-8 portions through mixing with water at 20-80 deg.c and emulsifying for 1-4 hr. Its advantages are high defoaming speed and strong power on suppressing foams.
Description
Technical field
The present invention relates to a kind of emulsion type defoaming agent, be specially adapted in the rubber industry froth breaking, press down bubble.
Background technology
At present, domestic and international various defoamer a multitude of names.All things considered, defoamer mainly can be divided into: lower alcohol system, silicone-based, mineral oil system and polar organic compounds are several big classes such as material, according to concrete purposes and performance requirement, have under many situations, but the material of these several series is compound synergic also, makes the new stronger defoamer of froth breaking ability.Defoamer is widely used in different industries such as papermaking, cleaning, printing and dyeing, polymerization, fermentation.In rubber industry, when relating to problem such as rubber cement stirs, topples over, flows, filtration, the degassing,, can produce a large amount of foams because exist the kinds of surface activating agent in the system, comparatively complicated because of its composition, give froth breaking and press down bubble and all brought certain difficulty.
The basic preparation technology of emulsion form defoamer is similar in the prior art, all exist this process of composite-emulsification, different is selects for use at different application purposes or has prepared different froth breaking materials, has adopted different prescriptions and concrete compound emulsion technology.CN85105343 provides a kind of preparation method: be the hydrophobic silicon of the mineral oil of 5～19 centistokes and 1～10wt% acid amides, 0.1～5wt% with 20～32wt% viscosity, 0.1 the aliphatic acid glycerine ester of～4wt% and the dispersant of 1～10wt%, heating and melting, and 123 ± 2 ℃ of maintenances at least 15 minutes, then this molten mass is mixed with the liquid hydrocarbon of 39～77.8wt% rapidly, its dispersant is a nonionic, is C
12-22Aliphatic acid and the ester class of polyalcohol, but this defoamer is applicable to the elimination of pulp treatment process foam.
Summary of the invention
Purpose of the present invention just provides a kind of emulsion type defoaming agent and production method thereof, is applied to rubber industry polymerization, cohesion, degassing process, the foam that the effect of kinds of surface activating agent produces in the elimination system.Do not contain the silicone-based material in the defoamer of the present invention, belonging to polar organic compounds and mineral oil is the material compound defoamer, can be used for inapplicable organosilyl occasion.
Purpose of the present invention can realize by following measure:
A kind of emulsion type defoaming agent, the addition of all components adds up to 100 mass parts to dewater outward, is by the alkymer of 40～60 mass parts and the C of 10～35 mass parts
4～C
8Hydramine and 10～40 mass parts C
10～C
18Aliphatic acid helps defoamer with 5～15 mass parts again at 30～150 minutes products therefroms of 70～150 ℃ of esterifications, and 3～8 mass parts dispersants are at 20～80 ℃ and 1～4 hour resulting product of water mixing and emulsifying.The addition of water can be selected addition by the desired concn requirement; The best defoamer that helps is C
3～C
8Lower alcohol or carboxylate, (as octanol, propyl alcohol, ethyl acetate) and water-insoluble soap can be one or more.Best dispersant is a nonionic surface active agent, as APES, AEO, polyoxyethylene sorbitan fatty acid ester, sorbitan fatty acid lipid material, concrete as polyoxyethylene nonylphenol ether, Tween-40, Tween-60, Tween-80 and Arlacel-60, Arlacel-80, can be one or more.
The main body froth breaking composition of emulsion type defoaming agent of the present invention is an aliphatic acid hydramine ester, with alkymer, help defoamer, dispersant compound after, through making emulsion type defoaming agent with water and milkization, main defoamer wherein is C
4～C
8Fatty alcohol amine (as triethanolamine) and C
10～C
18The product of aliphatic acid (as capric acid, dodecylic acid, hexadecanoic acid, octadecanoid acid, oleic acid etc.) esterification, its reaction equation is as follows:
R is C in the formula
10～C
18Alkyl, n, n ', n "=1～4
Alkymer does not react in this process, because of its lower surface energy, has a good antifoam performance with the ester class that generates is collaborative, but the more difficult emulsification of alkymer, need to add in advance, make its with system in other material fully mix, be beneficial to the carrying out of emulsification, composite as if directly adding after reaction, then need consuming slightly, the emulsifying agent of volume just can reach same emulsifying effectiveness.
In the reaction system if C
4～C
8The consumption of hydramine is less than 10 mass parts, and then above-mentioned reaction can not be carried out well, the ester class quantity not sufficient of generation; If be higher than 35 mass parts,, can offset the effect of defoamer because of itself foamability is stronger.C
10～C
18The consumption of aliphatic acid can make esterification finely not carry out if be less than 10 mass parts equally.If consumption is excessive, then can form the polyester product, even can cause the emulsification difficulty because of there being more aliphatic acid in system, to retain, its consumption is suitable between 10～40 mass parts.
Simultaneously, in order to improve the antifoam performance of defoamer, also adding has dispersion, viscosity reduction, breaks the defoamer that helps of bubble effect, and it is C
3～C
8Lower alcohol, carboxylate, water-insoluble soap one of them or compound, its total consumption are crossed and are helped the defoamer effect not obvious when low, the too high rerum natura that then can influence whole defoamer between 5～15 mass parts.In order to make the main body defoamer form uniform and stable aqueous emulsion, need to add dispersant in the system, generally select nonionic surfactant, it can be polyoxyethylene nonylphenol ether, Tweens (T-20,40,60,80), spans (S-60,80).It adds up to consumption between 3～8 mass parts, crosses to hang down to form good dispersion liquid, and system emulsification is incomplete; The foaming characteristic of too high these dispersants itself can reduce the effect of defoamer.Add entry and be in order to make its emulsification, product is the even emulsion material of white thickness.
The present invention has following characteristics:
(1). antifoaming speed is fast, and it is strong to press down the bubble ability, and but the multiple blowing agent that is applied to the rubber and plastic system is all had good disappearing the bubble effect as drawing back powder, neopelex, rosin soap, naphthalene sulfonic acid-formaldehyde condensation product etc.
(2). the rubber and plastic polymerization system is had no adverse effects, do not influence the performance of final rubber, naval stores.
(3). the preparation method is simpler, the reaction condition gentleness, course of reaction no coupling product and " three wastes " produce.
The specific embodiment
Embodiment 1
Get the atoleine of 15.5 mass parts diethanol amine, 45.0 mass parts and the hexadecanoic acid of 27.5 mass parts, their addings are had in the reactor of steam jacket, under stirring condition, be warming up to 110～120 ℃, reaction is 60 minutes under this temperature, be cooled to 55 ℃, the propane diols that adds 5 mass parts mixes with 2 mass parts ethyl acetate and helps defoamer, adds 4.7 mass parts Arlacel-80s as dispersant, stirred 4 hours through mixing again, obtain white emulsion and be product of the present invention with water.
Embodiment 2
Get the atoleine of 27.7 mass parts triethanolamines, 48.5 mass parts and the oleic acid of 12.1 mass parts, their addings are had in the reactor of steam jacket, under stirring condition, be warming up to 80～100 ℃, reaction is 90 minutes under this temperature, be cooled to 40～50 ℃, the calcium stearate that adds 6.8 mass parts mixes with 1.2 mass parts octanols and helps defoamer, add 3.3 mass parts polyoxyethylene nonylphenol ethers and 0.4 part of Tween-60 mixing as dispersant, stirred 2.5 hours through mixing with water, the white emulsion that obtains is product of the present invention again.
Embodiment 3
Get the refined mineral oil of 13.5 mass parts triethanolamines, 53.7 mass parts and the octadecanoid acid of 19.9 mass parts, their addings are had in the reactor of steam jacket, under stirring condition, be warming up to 85～95 ℃, reaction is 120 minutes under this temperature, reactor product is cooled to 60～70 ℃ then, the octanol that adds 7.6 mass parts helps defoamer, and then add 3.2 mass parts Arlacel-60s and 2.1 parts of Tween-80s mix as dispersant, stirred 2.5 hours through mixing again, obtain white emulsion and be product of the present invention with water.
Table 1 uses different defoamers for to use different expanding foam solutions, under different dosage, and the contrast situation of its bubble time of going out.
Table 1 defoamer of the present invention with abroad contrast with defoamer foam time test data
* *: dosage unit all is weight percentage, and table 2, table 3 are together.
*: be Japanese Kao company product, alkymer emulsion-type.Comparative Examples 1:
Get the oleic acid of 27.7 mass parts triethanolamines, 12.1 mass parts, their addings are had in the reactor of steam jacket, under stirring condition, be warming up to 80～100 ℃, reaction is 90 minutes under this temperature, reactor product is cooled to 40～50 ℃ then, the calcium stearate that adds 6.8 mass parts mixes with 1.2 mass parts octanols and helps defoamer, and then add 48.5 mass parts atoleines, stir evenly, this system need add 6.2 mass parts polyoxyethylene nonylphenol ethers and 1.0 parts of Tween-60s mix as dispersant, stirred 4 hours through mixing again, form white emulsion with water.Table 2 is that embodiment 2 compares with Comparative Examples 1 defoaming effect.
Table 2 embodiment 2 compares with Comparative Examples 1 defoaming effect
Comparative Examples 2:
Get emulsification dimethyl-silicon fat liquor, relatively itself and product of the present invention are to the defoaming effect of neopelex.Table 3 is that embodiment 1 compares with Comparative Examples 2 defoaming effects.
Table 3 is that embodiment 1 compares with Comparative Examples 2 defoaming effects
Claims (4)
1. emulsion type defoaming agent adds up to 100 mass parts in the addition of outer all components that dewater, and is by the alkymer of 40～60 mass parts and the C of 10～35 mass parts
4～C
8Hydramine and 10～40 mass parts C
10～C
18Aliphatic acid helps defoamer with 5～15 mass parts again at 30～150 minutes products therefroms of 70～15 0 ℃ of esterifications, and 3～8 mass parts dispersants are at 20～80 ℃ and 1～4 hour resulting product of water mixing and emulsifying; Wherein helping defoamer is C
3～C
8In lower alcohol, carboxylate, the water-insoluble soap one or more, dispersant are nonionic surface active agent.
2. defoamer according to claim 1 is characterized in that alkymer is atoleine, mineral oil.
3. defoamer according to claim 1, it is characterized in that helping defoamer is in octanol, propyl alcohol, ethyl acetate, the water-insoluble soap one or more.
4. defoamer according to claim 1 is characterized in that dispersant is APES, AEO, polyoxyethylene sorbitan fatty acid ester, sorbitan fatty acid lipid material, can be one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144354 CN1232329C (en) | 2001-12-17 | 2001-12-17 | Emulsion type defoaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144354 CN1232329C (en) | 2001-12-17 | 2001-12-17 | Emulsion type defoaming agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1426828A true CN1426828A (en) | 2003-07-02 |
| CN1232329C CN1232329C (en) | 2005-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01144354 Expired - Fee Related CN1232329C (en) | 2001-12-17 | 2001-12-17 | Emulsion type defoaming agent |
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|---|---|
| CN (1) | CN1232329C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358607C (en) * | 2005-10-09 | 2008-01-02 | 南京四新科技应用研究所有限公司 | Preparation of highly efficient water phase system non-organic silicon defoaming agent |
| CN101664655B (en) * | 2009-09-10 | 2011-11-16 | 沧州信昌化工有限公司 | Composite silicon-free defoamer |
| CN102600646A (en) * | 2012-03-28 | 2012-07-25 | 南宁春城助剂有限责任公司 | Defoamer for wet-process phosphoric acid production and production method thereof |
| CN104877563A (en) * | 2015-06-11 | 2015-09-02 | 张家港市五湖新材料技术开发有限公司 | Three-proofing lacquer for circuit board preventing electromagnetic interference |
| CN112707676A (en) * | 2020-10-23 | 2021-04-27 | 科之杰新材料集团有限公司 | Concrete defoaming agent and preparation method thereof |
| CN112807754A (en) * | 2020-12-09 | 2021-05-18 | 金湖金凌新材料科技有限公司 | Defoaming agent for eliminating foam in wastewater aerobic activated sludge tank and preparation method thereof |
-
2001
- 2001-12-17 CN CN 01144354 patent/CN1232329C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358607C (en) * | 2005-10-09 | 2008-01-02 | 南京四新科技应用研究所有限公司 | Preparation of highly efficient water phase system non-organic silicon defoaming agent |
| CN101664655B (en) * | 2009-09-10 | 2011-11-16 | 沧州信昌化工有限公司 | Composite silicon-free defoamer |
| CN102600646A (en) * | 2012-03-28 | 2012-07-25 | 南宁春城助剂有限责任公司 | Defoamer for wet-process phosphoric acid production and production method thereof |
| CN104877563A (en) * | 2015-06-11 | 2015-09-02 | 张家港市五湖新材料技术开发有限公司 | Three-proofing lacquer for circuit board preventing electromagnetic interference |
| CN112707676A (en) * | 2020-10-23 | 2021-04-27 | 科之杰新材料集团有限公司 | Concrete defoaming agent and preparation method thereof |
| CN112807754A (en) * | 2020-12-09 | 2021-05-18 | 金湖金凌新材料科技有限公司 | Defoaming agent for eliminating foam in wastewater aerobic activated sludge tank and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1232329C (en) | 2005-12-21 |
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Granted publication date: 20051221 Termination date: 20201217 |