CN107502112A - Aqueous industrial coating and its production method - Google Patents
Aqueous industrial coating and its production method Download PDFInfo
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- CN107502112A CN107502112A CN201610838724.2A CN201610838724A CN107502112A CN 107502112 A CN107502112 A CN 107502112A CN 201610838724 A CN201610838724 A CN 201610838724A CN 107502112 A CN107502112 A CN 107502112A
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- industrial coating
- aqueous industrial
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- organosilicon
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of aqueous industrial coating and its production method, it is characterised in that includes the raw material of following parts by weight：Wherein, 30 40 parts of organosilicon modified crylic acid resin, 10 15 parts of methyl-etherified melamine resin, 0.1 2.0 parts of wetting agent, 0.1 2.0 parts of defoamer, 0.1 2.0 parts of levelling agent, 5 10 parts of alcohols solvent, 5 10 parts of ether solvent, 35 50 parts of deionized water.Aqueous industrial coating environmental sound, significant strongly adherent, excellent levelability and high-performance water-based industrial coating the features such as glossiness of the present invention, the aqueous industrial coating also has excellent pliability, water resistance, humidity resistance, chemicals-resistant and salt spray resistance, it is easy for construction, it is highly suitable for the automatic spraying line of commercial production of metals workpiece.
Description
Technical field
The invention belongs to the processing technique field of PE feed pipes, is applied to more particularly to one kind to metal surface
The aqueous industrial coating and its production method of reason.
Background technology
Object is exposed among air, by the erosion of oxygen, moisture etc., easily causes corrosion of metal, foxiness, water
The breakoff phenomenons such as mud weathering.According to statistics, every year because the metal of corrosion is about the 20% of annual production, China is annual in the whole world
Economic loss accounts for the 4% of GDP caused by corrosion, and loss has been even more than the summation of all kinds of natural calamities.And in object table
Face is coated with coating, forms layer protecting film, can prevent or postpone the occurrence and development of these breakoff phenomenons, make various materials
Service life extends.Coating can be coated in object surface with different construction technologies, formed and adhered to firmly, with certain strong
Degree, continuous solid film.But instantly, environmental issue turns into " the big problem " that coating industry faces.Coating application process
The volatile organic matter discharged, it is one of source of atmosphere pollution, some enterprises have begun to carry out changing for production link
Upgrading is made, substitutes traditional paint using aqueous industrial coating, is also considered solve the fundamental way of coatings enterprises pollution in the industry.
For earliest aqueous industrial coating using acrylic acid as primary raw material, its advantage is water-fast, good weatherability.Its shortcoming is comprehensive
It is general to close performance, for chemical property than relatively low (such as resistance to alcohol alkaline resistance properties is poor), the physical index such as hardness, abrasion resistance is relatively low, this
And most people thinks the reason for aqueous industrial coating is bad place.It is excellent that aqueous industrial coating has environmentally friendly paint film effect good etc.
Point, aqueous industrial coating include two kinds of mono-component aqueous industrial coating and bi-component waterborne industrial coating, mono-component aqueous industry
Coating is not so good as two-component coating in the performance such as hardness and high temperature resistant；And bi-component waterborne industrial coating and mono-component aqueous industry
Coating is higher compared to processing cost.Both respectively have advantage and disadvantage, but comparatively most basic still aqueous industrial coating each side
Combination property is up for further improving.Aqueous industrial coating afterwards is main using the compound of acrylic acid and aqueous polyurethane
Raw material, not only inherit acrylic products weatherability, the advantages of construction tolerance is good, while also improve aqueous industrial coating
Hardness, but chemical property and pliability etc. still do not solve well.In addition, restrict aqueous industrial coating production and application
Main reason be that the performance of aqueous industrial coating and the performance of similar solvent-borne type industrial coating also have gap.Therefore, grind
It is one of the main task of those skilled in the art at this stage to make a kind of good aqueous industrial coating of combination property.
The content of the invention
It is an object of the invention to provide a kind of environmental sound, significant strongly adherent, excellent levelability and glossiness
The features such as high-performance water-based industrial coating, the aqueous industrial coating also have excellent pliability, water resistance, humidity resistance,
Chemicals-resistant and salt spray resistance, it is easy for construction, it is highly suitable for the automatic spraying line of commercial production of metals workpiece.
What the present invention was realized in：
A kind of aqueous industrial coating, it is characterised in that include the raw material of following parts by weight：Wherein, organic-silicon-modified third
Olefin(e) acid resin 30-40 parts, methyl-etherified melamine resin 10-15 parts, wetting agent 0.1-2.0 parts, defoamer 0.1-2.0
Part, levelling agent 0.1-2.0 parts, alcohols solvent 5-10 parts, ether solvent 5-10 parts, deionized water 35-50 parts.
Further preferably, the organosilicon modified crylic acid resin is that water-soluble organic silicon is acrylic resin modified.
Further preferably, the wetting agent is polyether-modified polysiloxane, octyl group butanedioic acid sulfonate or perfluor alkane
Base sulfonate.
The main chemical compositions for the wetting agent that the present invention uses are organic silicon modified by polyether oxygen alkane, octyl group butanedioic acid sulfonic acid
Salt or fluorinated alkyl sulfonate.Organic silicon modified by polyether class wetting agent is a kind of novel high polymer surfactant, is had excellent
Performance, hydrophilic polyether segment assigns its good water solubility, and it is extremely low that hydrophobic polysiloxanes segment assigns its again
Surface tension, and this analog copolymer also has the characteristics that good biocompatibility, adaptability are good.
Further preferably, the defoamer includes Voncoat R 3310 and organosilicon, Voncoat R 3310 and organic
The mass ratio of silicon is 1-5:0.1-3.The defoamer that the present invention uses has the advantages of dosage is few, defoaming is fast, the suds time is long, no
Influence holiday.The emulsifiability of the defoamer is stable, and defoaming, suds suppressing properties are good, can be dissolved in water rapidly, can individually make
With, it can be also used cooperatively with other inorganic agents, and it is also effective to non-aqueous system.
Further preferably, the levelling agent includes isopropanol, acrylic acid trifluoro ethyl ester, ethyl acrylate, methacrylic acid
Methyl esters, dibenzoyl peroxide, VTES；Isopropanol, acrylic acid trifluoro ethyl ester, ethyl acrylate, methyl
Methyl acrylate, dibenzoyl peroxide, the weight ratio of VTES are 30-50:20-30:10:10:0.5:
0.5。
The levelling agent that the present invention uses has reduction coating surface tension force, can improve substrate wettability, improves coating flowing
And levelling, surface defect is removed, increases and slides, reduces coating surface coefficient of friction, improves the characteristic of resistance to scraping and resistance to bond.It can improve
Water-based and solvent based coating coating surface property.It can not only reduce coating surface tension force, there is provided its preferable ground wetting
Property, and the smooth feeling of film coated surface can be increased, improve anti-blocking properties, can also avoid the formation of Bei Nade whirlpools in addition, improve
Film levelling and gloss.
Further preferably, the alcohols solvent is methanol, ethanol, ethylene glycol, propane diols, isopropanol, isobutanol, n-butanol
In one or more.
Further preferably, the ether solvent is ether, dipropyl ether, diisopropyl ether, glycol dimethyl ether, DPG fourth
One or more in ether, propylene glycol monomethyl ether, propylene glycol methyl ether acetate.
Selection of the aqueous industrial coating to its solvent is very important, and its factor considered includes the dissolving to resin
Volatilization gradient when the compatibility of power and water, baking etc..Especially volatilize gradient in automatic spraying operation to paint film outside
Viewing ring it is very big, the flatness of film, the transparency of coating, spraying when stream hexagram phenomenon the problems such as be required for by adjust volatilize
Gradient is solved, and the resin in water paint will be dissolved in water, realized by solvent, for the resin of selection, is closed
Reason ground selection solvent, reaches the dissolution equilibrium of resin and water, and the present invention selects alcohol ether resinoid.Aqueous industrial of the present invention applies
Expect in production process it is middle with substantial amounts of water as cosolvent, the boiling point of water is 100 DEG C, and rate of volatilization is very low, dried coating film initial stage,
Need to add a small amount of low boiling alcohols solvent, form azeotropic with water, allow water quickly to volatilize, avoid the occurrence of stream hexagram.
The production method of aqueous industrial coating of the present invention, comprises the following steps：
S1, by formula by organosilicon modified crylic acid resin, methyl-etherified melamine resin, alcohols solvent and ethers
Solvent is put into dispersion cup, is stirred when feeding intake, and controls rotating speed to turn/min for 400-600, stirs 5-20 minutes, is obtained uniformly
Mixed solution；
S2 and then the wetting agent added into mixed solution, defoamer, levelling agent, deionized water, are stirred when feeding intake,
Control rotating speed to turn/min for 400-600, stir 5-20 minutes, then filtered, packed, be put in storage, that is, obtain aqueous industrial painting
Material.
The prominent substantive distinguishing features of the present invention and significant progress are：
1st, aqueous industrial coating of the present invention adds wetting agent, defoamer, stream while organic polymer solution is introduced
Flat agent, the high-performance water-based work for the features such as having obtained environmental sound, significant strongly adherent, excellent levelability and glossiness
Industry coating, and there is excellent pliability, water resistance, humidity resistance, chemicals-resistant and salt spray resistance, it is easy for construction, it is non-
Often it is applied to the automatic spraying line of commercial production of metals workpiece.
2nd, by the use of substantial amounts of water as cosolvent in aqueous industrial coating production process of the present invention, the boiling point of water is 100 DEG C, is waved
It is very low to send out speed, dried coating film initial stage forms azeotropic, it is necessary to add a small amount of low boiling alcohols solvent, with water, allows water quickly to wave
Hair, avoids the occurrence of stream hexagram；In addition, the present invention is by the use of water as diluent, and water (refers to and is thoroughly mixed to its dilution
It is even) it is that comparison is slow, it should avoid being diluted when using, therefore the present invention is adjusted to working viscosity in production, during use
It is not diluted with water, directly uses.
Embodiment
The present invention is made the following instructions with reference to embodiment.
Embodiment 1
Raw material：
30 parts of organosilicon modified crylic acid resin, 10 parts of methyl-etherified melamine resin, polyether-modified poly-organosilicon
0.1 part of oxygen alkane, 0.1 part of defoamer, 0.1 part of levelling agent, 5 parts of methanol, 5 parts of ether, 35 parts of deionized water.
Production method：
S1, by above-mentioned formula by organosilicon modified crylic acid resin, methyl-etherified melamine resin, methanol and ether
It is put into dispersion cup, is stirred when feeding intake, control rotating speed to turn/min for 400-600, stirs 5-20 minutes, uniformly mixed
Close solution；
S2 and then the polyether-modified polysiloxane added into mixed solution, defoamer, levelling agent, deionized water,
Stirred when feeding intake, control rotating speed to turn/min for 400-600, stirred 5-20 minutes, then filtered, packed, be put in storage, produced
To aqueous industrial coating.
Embodiment 2
Raw material：
35 parts of organosilicon modified crylic acid resin, 12 parts of methyl-etherified melamine resin, octyl group butanedioic acid sulfonate
0.5 part, 0.5 part of defoamer, 0.5 part of levelling agent, 6 parts of ethanol, 6 parts of dipropyl ether, 40 parts of deionized water.
Above aqueous industrial coating production method is the same as embodiment 1.
Embodiment 3
Raw material：
38 parts of organosilicon modified crylic acid resin, 14 parts of methyl-etherified melamine resin, fluorinated alkyl sulfonate 1.5
Part, 1.5 parts of defoamer, 1.5 parts of levelling agent, 8 parts of alcohols solvent (ethylene glycol and propane diols, mass ratio 1:1), diisopropyl ether 8
Part, 45 parts of deionized water.
Above aqueous industrial coating production method is the same as embodiment 1.
Embodiment 4
Raw material：
40 parts of organosilicon modified crylic acid resin, 15 parts of methyl-etherified melamine resin, polyether-modified poly-organosilicon
2.0 parts of oxygen alkane, 2.0 parts of defoamer, 2.0 parts of levelling agent, 10 parts of isopropanol, ether solvent 10 parts of (glycol dimethyl ether and dipropyls
Glycol butyl ether, mass ratio 1:1), 50 parts of deionized water.
Above aqueous industrial coating production method is the same as embodiment 1.
Application Example
The application of aqueous industrial coating of the present invention is using full-automatic machine people spraying, artificial mending-leakage, hanging chain heat
Air blast baking production line, it is characterized in that spraying is uniform, heating effect is good.
Coating process is：
Hand inspection suspension member → workpiece processing early stage → electrostatic → painting constant temperature drying → suspension member cooling → artificial lower part inspection
Look into packaging.
(1) hand inspection suspension member：Production line beginning, it is necessary to artificial suspension member, it is desirable to suspension member surface can not have sand
Eye, pit, scuffing, it would be desirable to be suspended to after the stainless steel substrate of spraying is qualified on inspection on hanging chain streamline.
(2) early stage is handled：Need to carry out stainless steel substrate alkali cleaning, washing, processing early stage dried before spraying.Purpose is just
It is to remove the oxide layer on suspension member surface, greasy dirt, foul etc., clean surface is provided for subsequent job.
(3) electrostatic spraying：Electrostatic spraying workshop will accomplish constant temperature, constant humidity, dustless requirement.Using Control During Paint Spraying by Robot, people
Work mending-leakage mode.
(4) constant temperature drying：160 DEG C of product requirement baking temperature, time 20min.
(5) suspension member cooling is using the natural type of cooling.
(6) artificial lower part inspection packaging, substandard products, qualified products packaging are rejected.
It is through detection, its technical indicator after the spraying of 1-4 of embodiment of the present invention samples：
Each parameter can be seen that the aqueous industrial coating produced by inventive formulation from table 1, by stainless steel substrate
After being sprayed, stainless steel substrate has resistance to soiling, alkali resistance, humidity resistance, chemicals-resistant, salt spray resistance and resistance to sudden heating
Energy.
Claims (8)
1. a kind of aqueous industrial coating, it is characterised in that include the raw material of following parts by weight：Wherein, organic-silicon-modified propylene
Acid resin 30-40 parts, methyl-etherified melamine resin 10-15 parts, wetting agent 0.1-2.0 parts, defoamer 0.1-2.0 parts,
Levelling agent 0.1-2.0 parts, alcohols solvent 5-10 parts, ether solvent 5-10 parts, deionized water 35-50 parts.
2. aqueous industrial coating according to claim 1, it is characterised in that：The organosilicon modified crylic acid resin is water
Dissolubility organosilicon modified crylic acid resin.
3. aqueous industrial coating according to claim 1, it is characterised in that the wetting agent is polyether-modified poly-organosilicon
Oxygen alkane, octyl group butanedioic acid sulfonate or fluorinated alkyl sulfonate.
4. aqueous industrial coating according to claim 1, it is characterised in that the defoamer includes Voncoat R 3310
And organosilicon, the mass ratio of Voncoat R 3310 and organosilicon is 1-5:0.1-3.
5. aqueous industrial coating according to claim 1, it is characterised in that the levelling agent includes isopropanol, acrylic acid
Trifluoro ethyl ester, ethyl acrylate, methyl methacrylate, dibenzoyl peroxide, VTES；Isopropanol,
Acrylic acid trifluoro ethyl ester, ethyl acrylate, methyl methacrylate, dibenzoyl peroxide, VTES
Weight ratio is 30-50:20-30:10:10:0.5:0.5.
6. aqueous industrial coating according to claim 1, it is characterised in that the alcohols solvent is methanol, ethanol, second two
One or more in alcohol, propane diols, isopropanol, isobutanol, n-butanol.
7. aqueous industrial coating according to claim 1, it is characterised in that the ether solvent is ether, dipropyl ether, two
One kind in isopropyl ether, glycol dimethyl ether, dipropylene, propylene glycol monomethyl ether, propylene glycol methyl ether acetate or it is a kind of with
On.
8. the production method of aqueous industrial coating as claimed in claim 1, it is characterised in that comprise the following steps：
S1, by formula by organosilicon modified crylic acid resin, methyl-etherified melamine resin, alcohols solvent and ether solvent
It is put into dispersion cup, is stirred when feeding intake, control rotating speed to turn/min for 400-600, stirs 5-20 minutes, uniformly mixed
Close solution；
S2 and then the wetting agent added into mixed solution, defoamer, levelling agent, deionized water, are stirred when feeding intake, control
Rotating speed is that 400-600 turns/min, stirs 5-20 minutes, is then filtered, packed, be put in storage, that is, obtain aqueous industrial coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838724.2A CN107502112A (en) | 2016-09-22 | 2016-09-22 | Aqueous industrial coating and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838724.2A CN107502112A (en) | 2016-09-22 | 2016-09-22 | Aqueous industrial coating and its production method |
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| CN107502112A true CN107502112A (en) | 2017-12-22 |
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| CN201610838724.2A Pending CN107502112A (en) | 2016-09-22 | 2016-09-22 | Aqueous industrial coating and its production method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980234A (en) * | 2019-12-17 | 2021-06-18 | 山东海科创新研究院有限公司 | Dimethyl carbonate azeotropic solvent composition, preparation method thereof, automobile low-temperature baking varnish formula and application |
| CN116004070A (en) * | 2022-12-27 | 2023-04-25 | 河北环亚石油钻采科技股份有限公司 | Corrosion-resistant high-temperature-resistant high-molecular film material for sucker rod and preparation process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948200A (en) * | 2006-11-10 | 2007-04-18 | 华南理工大学 | Water colour transparent glass paint and its preparation method and application |
-
2016
- 2016-09-22 CN CN201610838724.2A patent/CN107502112A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948200A (en) * | 2006-11-10 | 2007-04-18 | 华南理工大学 | Water colour transparent glass paint and its preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| 叶扬祥等: "《涂装技术实用手册》", 30 June 2003, 机械工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980234A (en) * | 2019-12-17 | 2021-06-18 | 山东海科创新研究院有限公司 | Dimethyl carbonate azeotropic solvent composition, preparation method thereof, automobile low-temperature baking varnish formula and application |
| CN112980234B (en) * | 2019-12-17 | 2022-12-23 | 山东海科创新研究院有限公司 | Dimethyl carbonate azeotropic solvent composition, preparation method thereof, automobile low-temperature baking varnish formula and application |
| CN116004070A (en) * | 2022-12-27 | 2023-04-25 | 河北环亚石油钻采科技股份有限公司 | Corrosion-resistant high-temperature-resistant high-molecular film material for sucker rod and preparation process thereof |
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Application publication date: 20171222 |
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