CN102888178A - Water emulsification process of alkyd resin coating - Google Patents
Water emulsification process of alkyd resin coating Download PDFInfo
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- CN102888178A CN102888178A CN2012104461120A CN201210446112A CN102888178A CN 102888178 A CN102888178 A CN 102888178A CN 2012104461120 A CN2012104461120 A CN 2012104461120A CN 201210446112 A CN201210446112 A CN 201210446112A CN 102888178 A CN102888178 A CN 102888178A
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Abstract
The invention discloses a water emulsification process of an alkyd resin coating. The coating is generated by proportionally mixing and stirring four or more substances in alkyd resins (high viscosity), an emulsifying agent, distilled water, sulfates, 200# solvent oil, n-butanol and isobutanol according to the following steps: throwing the distilled water and the sulfates into a head tank with stirring according to the proportion and stirring and dissolving the substances for later use; throwing the alkyd resins and the emulsifying agent into an emulsifying kettle, dropwise adding water solution from the head tank when the stirring linear speed is more than 6m/s and controlling the dropwise adding time between 30 minutes and 90 minutes; and stirring and emulsifying the substances for 40-80 minutes at high speed after dropwise adding and using the solvent oil and/or an alcohol solvent to adjust the viscosity. The process has the following characteristics that the water emulsion replaces part of organic solvents and has stable properties, thus reducing the VOC (volatile organic compounds) of the alkyd resin coating, without affecting the properties of the coating; the VOC can be reduced by 10-30% at most and the product reaches the national standard; and the needed equipment investment is low and the water-in-oil alkyd resin emulsion has good stability.
Description
Technical field
The present invention relates to the phthalic resin coating preparing technical field, be specifically related to phthalic resin coating emulsifying water processing method, reduce the technology such as volatile organic compounds (VOC) content.
Background technology
Chinese coatings industry output reached 1079.51 ten thousand tons in 2011; the industrial protection field has the coating demand to be only second to building coating to account for about 25% of ultimate production; phthalic resin coating is that very widely a kind of coating is used in the industrial protection field; account for 40% ratio; add the vegetables oil utilization; non-renewable unlike petroleum products, significant to taking full advantage of earth resources.But a large amount of uses of solvent-borne type phthalic resin coating, volatile organic matter has destruction to atmospheric layer, and this will directly exert an influence to environment for human survival.Therefore reduce phthalic resin coating VOC significant.
The phthalic resin coating Water-borne modification has the multiple technologies route, mainly contains Synolac directly and amine is neutralized into the salt Water-borne modification; The outer emulsification of phthalic resin coating, diluent water emulsification etc. are several.
1, Synolac carry out in the amine and the Water-borne modification technology of salify in, the easy chain-scission degradation of molecular resin, product is unstable.
2, the outer emulsifying technology of phthalic resin coating is produced difficulty, the bad realization of production technique owing to viscosity after the emulsification is grown tall by general paint production plant.
3, the emulsifying water technique of thinner is simpler, can not change coating producing process, but needs very high shear force during emulsification, the emulsified solvent poor stability, and the coating of making is the existence and stability problem too.
Summary of the invention
The present invention is directed to present phthalic resin coating production technology and study, the emulsifying agent of making by adding method of the present invention under high shear adds entry with a small amount of Synolac and reaches the emulsifying water emulsion.The emulsifying water emulsion applications is in the phthalic resin coating production process, and the final phthalic resin coating VOC that obtains reduces about 20%, and the coating products performance can not reduce simultaneously, and product reaches GB/T25251-2009 " phthalic resin coating " national standard.
The object of the present invention is achieved like this:
Phthalic resin coating emulsifying water processing method of the present invention, its component and proportioning are as follows:
| Synolac | 5~18 |
| Emulsifying agent | 3~12 |
| Distilled water | 60~80 |
| Solvent oil | 5~10 |
| Water soluble sulfate | 0.5~1.0 |
| Alcoholic solvent | 0.5～1.0 |
Wherein Synolac (take high viscosity as best) is as soybean oil, oleum lini, tetramethylolmethane, glycerine, ethylene glycol, phthalic acid, a kind of oil and one or both polyol reactions are alcoholysate in the trimellitic acid 1,2-anhydride, make medium-oil-length or long oil alkyd with one or both polyprotonic acid esterification reactions again.
Wherein emulsifying agent is octyl phenol Soxylat A 25-7 emulsifying agent { C
9H
19C
6H
4O (C
2H
4O)
nIn H} OP-10 or NX-70 or the sodium laurylsulfonate any, or two kinds with 1:1,1:2, the 2:1 equal proportion cooperates and forms.
Wherein vitriol is water-soluble vitriol, such as sodium sulfate, and vitriolate of tartar, zinc sulfate, sal epsom etc.
Wherein alcoholic solvent is ethanol, propyl alcohol, and a kind of in propyl carbinol or the isopropylcarbinol, or any two mix greater than 0% ratio and get with weight separately.
Solvent oil: select the 200# solvent oil, the gasoline of perhaps commonly using etc., or suitable solvent commonly used oil;
Step 1: distilled water and soluble vitriol drop into the header tank that band stirs by the proportioning metering, and stirring and dissolving is for subsequent use.
Step 2: high viscosity Synolac and emulsifying agent drop into emulsifying kettle and reach 6 meter per seconds and drip the aqueous solution from header tank when above stirring linear velocity, and time for adding is controlled at 30min. ~ 90min..
Step 3: high-speed stirring 30-80min again after dripping makes it continue emulsification; Then, with solvent oil and/or alcoholic solvent adjusting viscosity, reach the range of viscosities of processing requirement, such as viscosity 50 ~ 100 seconds (being coated with-1 glass), make it easy to production operation.
With respect to prior art, the present invention has following features:
1, this Synolac water-in-oil emulsion use with phthalic resin coating in to replace the part organic solvent properties stable, reduced phthalic resin coating VOC and do not affected coating property; The highest VOC of reduction reaches 10 ~ 30% and do not affect the performances such as gloss of coating, and product can reach GB/T25251-2009 " phthalic resin coating " national standard.
2, alkyd emulsification becomes the less investment of water-in-oil emulsion required equipment.
3, water-in-oil alkide resin emulsion good stability.
4, this technique does not affect Synolac.
5, product performance are up to state standards, and some projects also further improve.
Embodiment
The phthalic resin coating that the present invention relates to, by plant oil modified polyvalent alcohol, the polyprotonic acid vibrin is that base-material adds tinting pigment or filler, auxiliary agent and solvent composition:
Phthalic resin coating composition and weight percent are:
| Middle long oil alkyd | 20~35 |
| Tinting pigment | 15～35 |
| The physique filler | 0~20 |
| Distilled water | 10～30 |
| Auxiliary agent | 1.0～2.5 |
| Solvent | 35～45 |
Wherein solvent is the 200# industrial naptha, S-100, a kind of in the dimethylbenzene, or wherein two kinds mix with arbitrary proportion.
Wherein catalytic promoter is naphthenic acid rare earth, manganese naphthenate, cobalt naphthenate, the compounds such as methyl ethyl ketoxime.
Phthalic resin coating emulsifying water processing method of the present invention, its gordian technique: the adding technique of distilled water.Need in advance water (distilled water) to be made water in oil resin microemulsion, join in the coating again.Synolac (high viscosity), emulsifying agent, vitriol, the 200# solvent oil, propyl carbinol, ratio shown in four or more material following table in the isopropylcarbinol according to the following steps mix and blend produces.
| Synolac | 5~18 |
| Emulsifying agent | 3~12 |
| Distilled water | 60~80 |
| The 200# solvent oil | 5~10 |
| Vitriol | 0.5~1.0 |
| Alcoholic solvent | 0.5～1.0 |
Its technological operation step is:
Step 1: distilled water and vitriol drop into the header tank that band stirs by the proportioning metering, and stirring and dissolving is for subsequent use.
Step 2: Synolac (getting full-bodied Synolac, better effects if) and emulsifying agent drop into reactor (emulsion reactor) and reach 6 meter per seconds and drip the aqueous solution from header tank when above stirring linear velocity, and time for adding is controlled at 30min. ~ 90min..
Step 3: high-speed stirring 30-80min again after dripping makes it continue emulsification; Then, with solvent oil and/or alcoholic solvent adjusting viscosity, reach the range of viscosities of processing requirement, such as viscosity 50 ~ 100 seconds (being coated with-1 glass), make it easy to production operation.
It is stable that this Synolac water-in-oil emulsion is applied in the phthalic resin coating to replace the part organic solvent properties, reduced phthalic resin coating VOC and do not affect coating property.
The present invention adopt particular emulsifier under certain condition relatively low shearing force (stirring velocity) just can obtain the high emulsifying water resin liquid of stability, do not need to change general phthalic resin coating production technique in the production yet, the highest VOC of reduction reaches 10 ~ 30% and do not affect the performances such as gloss of coating, product can reach GB/T25251-2009 " phthalic resin coating " national standard, and this reduces VOC to coating industry and has great significance.
Embodiment 1:
1, water in oil resin emulsion preparation
(1) take by weighing distilled water 600Kg, zinc sulfate 6Kg drops in the stainless steel header tank, starts stirring and confirms that dissolve complete is for subsequent use.
(2) take by weighing that Synolac 150Kg(is best to be the high viscosity long oil), OP-10 emulsifying agent 35Kg joins in the stainless steel emulsifying kettle, starts to stir, and stirs the sulfate solution that linear velocity reaches 6 meter per seconds dropping header tank when above.Synolac and emulsifying agent stir under certain speed, produce certain shearing force, obtain the high emulsifying water resin liquid of stability.
(3) drip after high-speed stirring again, 30-80min makes it continue emulsification; Then, with 200# solvent oil and/or alcoholic solvent adjusting viscosity, reach the range of viscosities of processing requirement, make it easy to production operation.
2, phthalic resin coating mill base preparation
Claim long oil alkyd 400Kg, solvent 50Kg, titanium dioxide 550Kg drops in a mixing bowl of cleaning, and the pre-dispersed 20min. of high-speed stirring changes sand mill over to and is dispersed to fineness 20 μ m, changes in the paint mixing tank after the assay was approved.
3, emulsifying water phthalic resin coating preparation
Take by weighing 400Kg phthalic resin coating mill base; Add water in oil resin emulsion 300Kg, add long oil alkyd 263Kg, mixing and stirring, add again 1% methyl-silicone oil liquid, 2 Kg as leveling auxiliary agent, as 6% isooctoate of rare earth metal, 16 Kg of siccative, 4% cobalt naphthenate, 6 Kg, 2% manganese naphthenate 1Kg, 30% methyl ethyl ketoxime 2Kg.Solvent 200# industrial naptha 10Kg (gross weight 1000Kg) as cleaning equipment.
4, above-mentioned coating is adjusted with the 200# solvent oil carried out brush application after working viscosity 35 ~ 45S (determining according to working-yard temperature) filters, carry out after viscosity 17 ~ 30S (determining according to working-yard temperature) filters if the aerial spraying construction is adjusted.
After actual needs construction application, realize the object of the invention.
Embodiment 2:
1, water in oil resin emulsion preparation
(1) take by weighing distilled water 600Kg, sodium sulfate 8Kg drops in the stainless steel header tank, starts stirring and confirms that dissolve complete is for subsequent use.
(2) take by weighing high viscosity long oil alkyd 100Kg, OP-10 emulsifying agent 50Kg joins in the stainless steel emulsifying kettle, start to stir, and stirs the sulfate solution that linear velocity reaches 6 meter per seconds dropping header tank when above.Synolac and emulsifying agent stir under certain speed, produce certain shearing force, obtain the high emulsifying water resin liquid of stability.
(3) drip after high-speed stirring again, 30-80min makes it continue emulsification; Then, with 200# solvent oil and alcoholic solvent adjusting viscosity, reach the range of viscosities of processing requirement, use it to be convenient to production operation.
2, phthalic resin coating mill base preparation
Claim long oil alkyd 400Kg, solvent 50Kg, titanium dioxide 550Kg drops in a mixing bowl of cleaning, and the pre-dispersed 20min. of high-speed stirring changes sand mill over to and is dispersed to fineness 20 μ m, changes in the paint mixing tank after the assay was approved.
3, emulsifying water phthalic resin coating preparation
Take by weighing 450Kg phthalic resin coating mill base; Add water in oil resin emulsion 200Kg, add long oil alkyd 313Kg, mixing and stirring, add again 1% methyl-silicone oil liquid, 2 Kg as leveling auxiliary agent, as 6% isooctoate of rare earth metal, 16 Kg of siccative, 4% cobalt naphthenate, 6 Kg, 2% manganese naphthenate 1Kg, 30% methyl ethyl ketoxime 2Kg.Solvent 200# industrial naptha 10Kg (gross weight 1000Kg) as cleaning equipment.
4, above-mentioned coating is adjusted with the 200# solvent oil carried out brush application after working viscosity 35 ~ 45S (determining according to working-yard temperature) filters, carry out after viscosity 17 ~ 30S (determining according to working-yard temperature) filters if the aerial spraying construction is adjusted.
After actual needs construction application, realize the object of the invention.
Synolac emulsifying water coating technology of the present invention is quoted GB/T 1724-1979, GB/T 1725-2007 detects paint vehicle, and its fineness is 20 μ m, and non-volatile part is 50%, meets the GB/T25251-2010 standard; Quoting GB/T1728-1979, GB/T 6742-2007, GB/T1730-2007, GB/T1733-1993, GB/T9274-1988, GB/T 1865-2007 detects paint film, its surface drying time is 8h., do solid work and be 15h., pliability test is 3mm,, hardness is 0.3, water-fast 8h. is without unusually, acid resistance 24h. is without unusually, and artificial weathering ageing resistance 200h. variable color is not more than 2 grades, and loss of gloss is not more than 3 grades.Meet the GB/T25251-2010 standard-required.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. phthalic resin coating emulsifying water processing method, it is characterized in that: its component and proportioning are as follows:
Its technological operation step is:
Step 1: distilled water and vitriol drop into the header tank that band stirs by the proportioning metering, and stirring and dissolving is for subsequent use;
Step 2: Synolac and emulsifying agent drop into emulsifying kettle and reach 6 meter per seconds and drip the aqueous solution from header tank when above stirring linear velocity, and time for adding is controlled at 30min. ~ 90min;
Step 3: high-speed stirring emulsification 40min ~ 80min again after dripping, with solvent oil and/or alcoholic solvent adjusting viscosity.
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| CN201210446112.0A CN102888178B (en) | 2012-11-09 | 2012-11-09 | Water emulsification process of alkyd resin coating |
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| CN201210446112.0A CN102888178B (en) | 2012-11-09 | 2012-11-09 | Water emulsification process of alkyd resin coating |
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| CN102888178A true CN102888178A (en) | 2013-01-23 |
| CN102888178B CN102888178B (en) | 2015-07-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103450787A (en) * | 2013-09-06 | 2013-12-18 | 江西铜业股份有限公司 | Water-based emulsified alcohol acid ready-mixed paint and preparation technique thereof |
| CN103602155A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | Environmental-friendly waterproof coating material |
| CN104178000A (en) * | 2013-05-23 | 2014-12-03 | 海安县国力化工有限公司 | Emulsion paint |
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| CN1546544A (en) * | 2003-11-28 | 2004-11-17 | 顺德鸿昌化工有限公司 | Alcohol acid-polyacrylic acid (ester) hybrid latex preparation method |
| CN101085858A (en) * | 2006-06-05 | 2007-12-12 | 中国化工建设总公司常州涂料化工研究院 | Water alkyd resin emulsion and preparing method thereof |
| CN101735408A (en) * | 2010-01-18 | 2010-06-16 | 中国海洋石油总公司 | High-decoration alcohol acid-organosilicon crylic acid composite waterborne resin |
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2012
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Patent Citations (3)
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|---|---|---|---|---|
| CN1546544A (en) * | 2003-11-28 | 2004-11-17 | 顺德鸿昌化工有限公司 | Alcohol acid-polyacrylic acid (ester) hybrid latex preparation method |
| CN101085858A (en) * | 2006-06-05 | 2007-12-12 | 中国化工建设总公司常州涂料化工研究院 | Water alkyd resin emulsion and preparing method thereof |
| CN101735408A (en) * | 2010-01-18 | 2010-06-16 | 中国海洋石油总公司 | High-decoration alcohol acid-organosilicon crylic acid composite waterborne resin |
Non-Patent Citations (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178000A (en) * | 2013-05-23 | 2014-12-03 | 海安县国力化工有限公司 | Emulsion paint |
| CN103450787A (en) * | 2013-09-06 | 2013-12-18 | 江西铜业股份有限公司 | Water-based emulsified alcohol acid ready-mixed paint and preparation technique thereof |
| CN103602155A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | Environmental-friendly waterproof coating material |
| CN103602155B (en) * | 2013-11-19 | 2016-05-11 | 青岛祥嘉知识产权服务有限公司 | A kind of environment-friendly waterproof paint |
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| CN102888178B (en) | 2015-07-15 |
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