CN102408808A - Aqueous fluorocarbon coating for painting metal base materials - Google Patents
Aqueous fluorocarbon coating for painting metal base materials Download PDFInfo
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- CN102408808A CN102408808A CN2011102762345A CN201110276234A CN102408808A CN 102408808 A CN102408808 A CN 102408808A CN 2011102762345 A CN2011102762345 A CN 2011102762345A CN 201110276234 A CN201110276234 A CN 201110276234A CN 102408808 A CN102408808 A CN 102408808A
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Abstract
The invention discloses an aqueous fluorocarbon coating for painting a metal base material. The coating is composed of a waterborne resin, an epoxy polyether-based (sesqui-) siloxane cross-linking agent, a metal nano-pigment, a dispersant, a preservative, a light stabilizer, a thickener, a flatting agent and H2O, wherein the waterborne resin is composed of 25-50% silane/organochlorine co-modified fluororesin emulsion and 50-75% acrylic resin emulsion in mass fraction. The aqueous fluorocarbon coating of the invention is capable of producing excellent water repelling pollution resisting effects after being brushed and solid on the surface of the metal base material.
Description
Technical field
The present invention relates to a kind of aqueous fluorocarbon coating that metallic substrate surface dresses such as aircraft, automobile are coated with use that can be used for, relating in particular to a kind of is the compound fluorocarbon coating of water-based of major constituent based on the common modified fluorin resin emulsion of silane/organochlorine.
Background technology
Fluorocarbon coating is the coating of main film forming substance with organic fluorine or polymkeric substance promptly.Fluorocarbon coating; Anti-marquis's weather resistance and excellent corrosion resistance; Can provide base material good antifouling and self-cleaning function again, thus be coated with at aerospace, vehicle, chemical plant dress, boats and ships are anticorrosion, elevated bridge (like Construction of Hangzhou Bay Cross-sea Bridge) and Highrise buildings (like Beijing Bird's Nest) are non-maintaining etc., and the aspect is widely used, and is to integrate special functional coating high, new, the spy; The good reputation of " coating king " is arranged, and aqueous, environmental protective is one of important directions of its development.
Composite is one of the major technique of preparation fluorocarbon coating.For example CN101402816 is composite with fluorine carbon emulsion and acrylic elastic emulsion, acidproof pigment/filler, skimmer, flow agent etc., has obtained a kind ofly to can be used for the external wall protection and decorate the water-borne coatings that uses.And CN101412883 is with vinyl resin and fluorocarbon resin, nanometer SiO
2, white titanium pigment, organosilicon crylic acid latex, lime carbonate, skimmer etc. are composite, have also obtained a kind of nano fluorocarbon exterior wall heat-insulating paint, the exterior wall dress of using it for buildings is coated with, the acid and alkali-resistance and hide the effect of fine cracks of filming.Yet in the above-mentioned patent, the structure of components such as fluorine carbon component, vinyl resin and organosilicon crylic acid latex was not open, used it for the metal parts dress and was coated with poor performance.
The performance of fluorocarbon coating depends primarily on fluoro-resin.Therefore, in the fluorocarbon coating preparation, use novel fluoro-resin and be aided with well behaved linking agent, be expected to further improve the application performance of coating.
Summary of the invention
The object of the present invention is to provide a kind of metal base (like duraluminum, steel) dresses such as aircraft, automobile that can be used for to be coated with use fluorocarbon coating and preparation method thereof.
Metal base dress of the present invention is coated with the use fluorocarbon coating, by water-base resin and epoxidized polyether base (sesquialter) siloxane crosslinker, metal nano pigment, dispersion agent, sanitas, photostabilizer, thickening material, flow agent and H
2O forms; Wherein said water-base resin press massfraction by silane/organochlorine of 25-50% altogether the Emulsion acrylic resin of modified fluorin resin emulsion and 50-75% form, be respectively by other amounts of components of quality of water-base resin: epoxidized polyether base (sesquialter) siloxane crosslinker is that 0.5-3.0%, metal nano pigment are that 5.0-10.0%, dispersion agent are that 0.025-0.1%, sanitas are that 0.05-0.3%, photostabilizer are that 0.05-0.2%, thickening material are that 0.1-0.5%, flow agent are 0.05-1.0%, H
2O is 10-20%.
Said silane/organochlorine major constituent of modified fluorin resin emulsion altogether is perfluor alkane ethyl propylene acid esters (FA)-co-methylacrylic acid lauryl alcohol ester (LMA)-co-p-chloromethyl styrene (CMS)-co-Propylene glycol monoacrylate (HPA)-co-vinyltriethoxysilane (VTES) (being called for short FLCHV) or perfluor alkane ethyl propylene acid esters (FA)-co-methylacrylic acid lauryl alcohol ester (LMA)-co-p-chloromethyl styrene (CMS)-co-N-NMA (NMA)-co-vinyltriethoxysilane (VTES) (being called for short FLCNV) or perfluor alkane ethyl propylene acid esters (FA)-co-methylacrylic acid lauryl alcohol ester (LMA)-co-p-chloromethyl styrene (CMS)-co-Propylene glycol monoacrylate (HPA)-co-gamma-methyl allyl acyloxypropyl trimethoxysilane (KH-570) (being called for short FLCHK) or perfluor alkane ethyl propylene acid esters (FA)-co-methylacrylic acid lauryl alcohol ester (LMA)-co-p-chloromethyl styrene (CMS)-co-N-NMA (NMA)-co-gamma-methyl allyl acyloxypropyl trimethoxysilane (KH-570) (being called for short FLCNK) or methylacrylic acid ten difluoro heptyl esters (DFHM)-co-methylacrylic acid lauryl alcohol ester (LMA)-co-p-chloromethyl styrene (CMS)-co-Propylene glycol monoacrylate (HPA)-co-vinyltriethoxysilane (VTES) (being called for short DLCHV) or methylacrylic acid ten difluoro heptyl esters (DFHM)-co-methylacrylic acid lauryl alcohol ester (LMA)-co-p-chloromethyl styrene (CMS)-co-N-NMA (NMA)-co-gamma-methyl allyl acyloxypropyl trimethoxysilane (KH-570) (being called for short DLCNK); Described silane/organochlorine method for making of modified fluorin resin emulsion altogether is that perfluor alkane ethyl propylene acid esters (FA) or methylacrylic acid ten difluoro heptyl esters (DFHM) are carried out the copolymerization of negatively charged ion seed emulsion with methylacrylic acid lauryl alcohol ester (LMA), p-chloromethyl styrene (CMS), Propylene glycol monoacrylate (HPA) or N hydroxymethyl acrylamide (NMA), vinyltriethoxysilane (VTES) or gamma-methyl allyl acyloxypropyl trimethoxysilane (KH-570) at water; Temperature of reaction is 80 ℃; Reaction times is 4h; Emulsion solid content is 30%; PH is 6.0, and viscosity is 1.5-5.0mPa.s.
The major constituent of said Emulsion acrylic resin is that Bing Xisuandingzhi (BA)-co-vinylbenzene (ST)-co-vinylformic acid (AA)-co-Propylene glycol monoacrylate (HPA)-co-gamma-methyl allyl acyloxypropyl trimethoxysilane (KH-570) (BSAHK); Resin processing plant provides by Xi'an; The pH value is 5.0-6.0; Solid content is 50%, and viscosity is 53-60mPa.s.
The structure of described epoxidized polyether base (sesquialter) siloxane crosslinker (EPOS) is following, and its consumption is generally the 0.5-3.0% of water-base resin total mass:
EPOS-1
Or
EPOS-2
A, b=0 in the formula, 1,2 ... n, n are positive integer; Wherein, epoxidized polyether base (sesquialter) siloxane crosslinker is with tetramethyl-ring tetrasiloxane (D
4 H, referring to Scheme among Fig. 1 1) or hydrogeneous hexahedron sesquialter eight siloxanes (T
8 H, referring to Scheme among Fig. 1 2) with the preparation of the hydrosilylation addition reaction of allyl polyethenoxy polyoxypropylene epoxy group(ing) ether (APEE), temperature of reaction is 80 ℃, Si-H key and CH in the reaction raw materials
2The mol ratio of=CH-key is 1: 1.05.
In the described EPOS-1 structure, preferential selection contains a/b=7: 1, polyethers epoxy segmental molecular-weight average (M
nFour (2,3-glycidoxy polyoxyethylene polyoxypropylene propyl group) tetramethyl-ring tetrasiloxane (note is made EPOS-1A) of)=400 perhaps contains a=10, b=0, polyethers epoxy segmental molecular-weight average (M
nFour (2,3-glycidoxy T 46155 propyl group) tetramethyl-ring tetrasiloxane (note is made EPOS-1B) of)=500 perhaps contains a/b=7: 3, polyethers epoxy segmental molecular-weight average (M
nFour (2,3-glycidoxy polyoxyethylene polyoxypropylene propyl group) tetramethyl-ring tetrasiloxane (note is made EPOS-1C) of)=1000; In the described EPOS-2 structure, preferential selection contains a/b=7: 1, polyethers epoxy segmental molecular-weight average (M
n)=400 or a=10, b=0, polyethers epoxy segmental molecular-weight average (M
nEight epoxidized polyether propyl group hexahedron sesquialters, eight siloxanes of)=500 (note is made EPOS-2A and EPOS-2B respectively).
Said metal nano pigment is rutile titanium dioxide, red stone, silver suboxide or zinc oxide, and its consumption is the 5.0-10.0% of water-base resin quality.
Said dispersion agent is polyacrylic ammonium salt, basic metal sylvite or sodium salt, and like the OROTANTM 1124 (ammonium polyacrylate) of Rohm & Haas company, ZX-I etc., its consumption is generally the 0.025-0.1% of water-base resin quality; Described sanitas be the isothiazolones sanitas that uses of water-based system as blocking pine, its consumption is the 0.05-0.3% of water-base resin quality; Described photostabilizer is hindered amines (HALS) photostabilizer, and like two (2,2,6, the 6-tetramethyl-piperidyl) sebates of photostabilizer 770-, its consumption is the 0.05-0.2% of water-base resin quality; Described thickening material is that molecular-weight average is 3～100,000 Natvosol, and its consumption is generally the 0.1-0.5% of water-base resin quality; Said flow agent is flow agent RM2020, glycerine or the Ucar 35 that commercially available Rohm & Haas company produces, and its consumption is the 0.05-1.0% of water-base resin quality.
By the proportioning of above-mentioned each component of aqueous fluorocarbon coating, the concrete method for making of aqueous fluorocarbon coating of the present invention is:
Get H
2O, dispersion agent and sanitas add in the reactor drum successively; Mechanical stirring adds photostabilizer and metal nano pigment, high-speed stirring 1h then with its mixing; Treat to add Emulsion acrylic resin, silane/organochlorine modified fluorin resin emulsion and epoxidized polyether base (sesquialter) siloxane crosslinker altogether more successively after colo(u)rant dispersion to the needed fineness; Continue to stir, treat to add thickening material and flow agent again behind each component mixing, products obtained therefrom is an aqueous fluorocarbon coating.
The present invention adopts the common modified fluorin resin emulsion of silane/organochlorine to prepare aqueous fluorocarbon coating as high-performance hydrophobic oleophobic component, epoxidized polyether base (sesquialter) siloxanes as linking agent; This coating directly is applied over the metallic surface with brushing, roller coating mode; Formed coated membrane (abbreviation is filmed) is through room temperature surface drying 30min, again in 150 ℃ of curing 3min; Can produce the dirty effect of good water and oil repellant; Wherein the static contact angle of water film coated surface after curing can reach 129 °, and anti-contamination grade (with reference to the GB/T9780-2005 standard test) can reach 0 grade.
Description of drawings
Fig. 1 is epoxidized polyether base (sesquialter) siloxane crosslinker synthetic route chart, and Scheme1 is the synthetic route of EPOS-1 among Fig. 1, and Scheme 2 is the synthetic route of EPOS-2.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
(1) fluorocarbon coating hydrophobic oleophobic key ingredient---silane/organochlorine is the preparation of modified fluorin resin emulsion altogether
The example that is prepared as with the FLCHV resin emulsion.Accurately take by weighing 27.2g perfluor alkane ethyl propylene acid esters (FA), 12.8g methylacrylic acid lauryl alcohol ester (LMA), 1.5g Propylene glycol monoacrylate (HPA), 2.0g 4-1-chloro-4-methyl-benzene (CMS), 1.5g vinyltriethoxysilane (VTES), 1.2g perfluoroalkyl Supragil GN (FBS), 1.7g AEO (AEO-9), 0.4g Dodecyl Mercaptan, 92.7g deionized water; The mechanical stirring mixing; Use UW at 25 ± 2 ℃ of preparatory emulsification 20min again; Process stable pre-emulsion; Note is made component (I), places tap funnel (I), and is subsequent use.
Other gets the 0.8g Potassium Persulphate, processes initiator solution with the 20g water dissolution, and note is made component (II), places tap funnel (II), and is subsequent use.
In TM, reflux condensing tube, tap funnel (I) and four footpath bottles (II) were housed, each added 1/4 component (I), (II), stirs, logical N
2Protection is warming up to 80 ℃ of reaction 30min, and then is added dropwise to remaining ingredient (I), (II), and the rate of addition of controlling the two makes it to dropwise simultaneously at 1.5-2h, continues insulation reaction 4h.Then, reduce to room temperature, transfer pH to be about 6.0; Filter with gauze, must have a little the emulsion of blue-fluorescence, be silane/organochlorine modified fluorin resin FA-co-LMA-co-CMS-co-HPA-co-VTES (being called for short FLCHV) emulsion altogether; Its solid content is about 30%, and pH is 6.0, and viscosity is 3.6mPa.s.
The method for making of the common modified fluorin resin emulsion of other silane/organochlorines is the same, and its raw material consumption is seen table 1.
Table 1 preparation silane/organochlorine is used raw material and the consumption of modified fluorin resin emulsion altogether
(2) preparation of epoxidized polyether base (sesquialter) siloxane crosslinker in the fluorocarbon coating
Synthetic route is example referring to Fig. 1 with EPOS-1A.
In the three-necked bottle that TM, reflux condensing tube are housed, add 24.1g tetramethyl-ring tetrasiloxane (D successively
4 H) and 168.0g a/b=7: 1, the allyl polyethenoxy polyoxypropylene epoxy group(ing) ether (APEE) of Mn=400; Be heated with stirring to 80 ℃, add the 50ppm platinum catalyst again, the system of treating is changeed transparent continued stirring reaction 10min; Get transparent liquid, i.e. epoxidized polyether radical siloxane linking agent EPOS-1A.
The same EPOS-1A of preparation method of other epoxidized polyether base (sesquialter) siloxane crosslinkers, its raw material consumption is seen table 2.
Used raw material and the consumption thereof of table 2 preparation epoxidized polyether base (sesquialter) siloxanes EPOS
APEE
(1)：a/b＝7∶1、M
n＝400；APEE
(2)：a＝10、b＝0、M
n＝500；APEE
(3)：a/b＝7∶3、M
n＝1000。
APEE abbreviates polyethers epoxy segment as in inserting the EPOS molecule time.
(3) preparation of aqueous fluorocarbon coating
In the reactor drum of buncher is housed, add 100.0g H earlier
2O (deionized water) stirs, and adds 0.25g dispersion agent OROTANTM 1124 and 0.5g card pine more successively, and stirring and evenly mixing adds 0.5g photostabilizer-770 and 50.0g nano-TiO more successively
2(rutile-type) high speed dispersion 1h; Add 750.0g vinyl resin BSAHK emulsion, 250.0g FLCNV emulsion and 5.0g epoxidized polyether radical siloxane linking agent EPOS-1A then successively; After waiting to mix; Add 1.0g Natvosol and 0.5g RM2020 flow agent again, get even white fluid, i.e. aqueous fluorocarbon coating.
Fluorocarbon coating hydrophobic oleophobic key ingredient---silane/organochlorine modified fluorin resin FLCHK emulsion method for making is altogether seen embodiment 1 (1), and the method for making of linking agent EPOS-1B is seen embodiment 1 (2).
In the reactor drum of buncher is housed, add 100.0g H successively
2O, 1.0g dispersion agent OROTANTM 1124,1.0g card pine stir and make it mixing, add 1.0g photostabilizer 770 and 100.0g nano-TiO more respectively
2High speed dispersion 1h; Continue then to give and add 500.0g vinyl resin BSAHK emulsion, 500.0g FLCHK emulsion and 30.0g linking agent EPOS-1B in the system; After treating stirring and evenly mixing; Add 3.0g Natvosol and 10g glycerine again and transfer the system stickiness, get even white fluid, i.e. aqueous fluorocarbon coating.
Embodiment 3
Fluorocarbon coating hydrophobic oleophobic key ingredient---silane/organochlorine modified fluorin resin FLCNK emulsion method for making is altogether seen embodiment 1 (1), and the method for making of linking agent EPOS-1C is seen embodiment 1 (2).
In the reactor drum of buncher is housed, add 200.0g H successively
2O, 0.8g ZX-I PAAS dispersion agent, 2.0g card pine; Stirring and evenly mixing adds 2.0g photostabilizer-770 and 80.0g nano-sized iron oxide pigment high speed dispersion 1h more respectively, and then adds 700.0g vinyl resin BSAHK emulsion, 300.0g FLCNK emulsion and 25.0g linking agent EPOS-1C successively; After treating stirring and evenly mixing; Add 5.0g Natvosol and 2.0g flow agent RM2020 again and transfer the system stickiness, get even white fluid, i.e. aqueous fluorocarbon coating.
Embodiment 4
Fluorocarbon coating hydrophobic oleophobic key ingredient---silane/organochlorine modified fluorin resin DLCHV emulsion method for making is altogether seen embodiment 1 (1), and the method for making of linking agent EPOS-2A is seen embodiment 1 (2).
In the reactor drum of buncher is housed, add 150.0g H successively
2O, 0.6g ZX-I PAAS dispersion agent, 3.0g card pine; Stirring and evenly mixing adds 2.0g photostabilizer-770 and 60.0g nano phase ag_2 o high speed dispersion 1h more respectively, and then adds 650.0g vinyl resin BSAHK emulsion, 350.0g DLCHV emulsion and 15.0g linking agent EPOS-2A successively; After treating stirring and evenly mixing; Add 2.0g Natvosol and 1.0g Ucar 35 again and transfer the system stickiness, get even white fluid, i.e. aqueous fluorocarbon coating.
Embodiment 5
Fluorocarbon coating hydrophobic oleophobic key ingredient---silane/organochlorine modified fluorin resin DLCNK emulsion method for making is altogether seen embodiment 1 (1), and the method for making of linking agent EPOS-2B is seen embodiment 1 (2).
In the reactor drum of buncher is housed, add 100.0g H successively
2O, 0.5g dispersion agent OROTANTM 1124,1.0g card pine; Stirring makes it mixing, adds 1.5g photostabilizer-770 and 50.0g nano zine oxide high speed dispersion 1h more respectively, continues then to give in the system to add 600.0g vinyl resin BSAHK emulsion, 400.0g DLCNK emulsion and 18.0g linking agent EPOS-2B successively; After treating stirring and evenly mixing; Add 2.0g Natvosol and 0.5g flow agent RM2020 again and transfer the system stickiness, get even white fluid, i.e. aqueous fluorocarbon coating.
Embodiment 6
Fluorocarbon coating hydrophobic oleophobic key ingredient---silane/organochlorine modified fluorin resin FLCHV emulsion method for making is altogether seen embodiment 1 (1), and the method for making of linking agent EPOS-1A is seen embodiment 1 (2).
In the reactor drum of buncher is housed, add 100.0g H earlier
2O stirs, and adds 0.5g dispersion agent OROTANTM 1124 and 0.8g card pine more successively, and stirring and evenly mixing adds 0.6g photostabilizer-770 and 55.0g nano-TiO more successively
2High speed dispersion 1h; Add 700.0g vinyl resin BSAHK emulsion, 300.0g FLCHV emulsion and 10.0g epoxidized polyether radical siloxane linking agent EPOS-1A then successively; After waiting to mix; Add 1.5g Natvosol and 0.6gRM2020 flow agent again and transfer the system stickiness, get even white fluid, i.e. aqueous fluorocarbon coating.
The aqueous fluorocarbon coating that embodiment is prepared is brushed in the aluminum magnesium alloy surface, after room temperature is placed 30min, treated surface drying, solidifies 3min in 150 ℃ again.Filming at 25 ± 2 ℃, relative humidity is to carry out performance measurement under 65 ± 2%RH condition behind the balance 2h.Water is measured with the JC2000C contact angle measurement at the static contact angle of film coated surface, and the contamination resistance grade is with reference to the GB/T9780-2005 standard test, and other performances of filming are with reference to the GB standard test, and the result sees table 3.
The performance that table 3 embodiment 1-6 films
Claims (7)
1. a metal base dress is coated with the use fluorocarbon coating, and it is characterized in that: this coating is by water-base resin and epoxidized polyether base (sesquialter) siloxane crosslinker, metal nano pigment, dispersion agent, sanitas, photostabilizer, thickening material, flow agent and H
2O forms; Wherein said water-base resin press massfraction by silane/organochlorine of 25-50% altogether the Emulsion acrylic resin of modified fluorin resin emulsion and 50-75% form, be respectively by other amounts of components of quality of water-base resin: epoxidized polyether base (sesquialter) siloxane crosslinker is that 0.5-3.0%, metal nano pigment are that 5.0-10.0%, dispersion agent are that 0.025-0.1%, sanitas are that 0.05-0.3%, photostabilizer are that 0.05-0.2%, thickening material are that 0.1-0.5%, flow agent are 0.05-1.0%, H
2O is 10-20%.
2. be coated with the use fluorocarbon coating according to the said metal base dress of claim 1; It is characterized in that: said silane/organochlorine major constituent of modified fluorin resin emulsion altogether is perfluor alkane ethyl propylene acid esters-co-methylacrylic acid lauryl alcohol ester-co-p-chloromethyl styrene-co-Propylene glycol monoacrylate-co-vinyltriethoxysilane (FLCHV) or perfluor alkane ethyl propylene acid esters-co-methylacrylic acid lauryl alcohol ester-co-p-chloromethyl styrene-co-N-NMA-co-vinyltriethoxysilane (FLCNV) or perfluor alkane ethyl propylene acid esters-co-methylacrylic acid lauryl alcohol ester-co-p-chloromethyl styrene-co-Propylene glycol monoacrylate-co-gamma-methyl allyl acyloxypropyl trimethoxysilane (FLCHK) or perfluor alkane ethyl propylene acid esters-co-methylacrylic acid lauryl alcohol ester-co-p-chloromethyl styrene-co-N-NMA-co-gamma-methyl allyl acyloxypropyl trimethoxysilane (FLCNK) or methylacrylic acid ten difluoros heptyl ester-co-methylacrylic acid lauryl alcohol ester-co-p-chloromethyl styrene-co-Propylene glycol monoacrylate-co-vinyltriethoxysilane (DLCHV) or methylacrylic acid ten difluoros heptyl ester-co-methylacrylic acid lauryl alcohol ester-co-p-chloromethyl styrene-co-N-NMA-co-gamma-methyl allyl acyloxypropyl trimethoxysilane (DLCNK); Described silane/organochlorine altogether the method for making of modified fluorin resin emulsion is that perfluor alkane ethyl propylene acid esters or methylacrylic acid ten difluoro heptyl esters and methylacrylic acid lauryl alcohol ester, p-chloromethyl styrene, Propylene glycol monoacrylate or N hydroxymethyl acrylamide, vinyltriethoxysilane or gamma-methyl allyl acyloxypropyl trimethoxysilane are carried out the copolymerization of negatively charged ion seed emulsion at water; Temperature of reaction is 80 ℃; Reaction times is 4h; Emulsion solid content is 30%; PH is 6.0, and viscosity is 1.5-5.0mPa.s.
3. be coated with the use fluorocarbon coating according to the said metal base dress of claim 1; It is characterized in that: the major constituent of said Emulsion acrylic resin is Bing Xisuandingzhi-co-vinylbenzene-co-vinylformic acid-co-Propylene glycol monoacrylate-co-gamma-methyl allyl acyloxypropyl trimethoxysilane (BSAHK); The pH value is 5.0-6.0; Solid content is 50%, and viscosity is 53-60mPa.s.
4. be coated with the use fluorocarbon coating according to the said metal base dress of claim 1, it is characterized in that: the structure of described epoxidized polyether base (sesquialter) siloxane crosslinker is following:
EPOS-1
Or
EPOS-2
A, b=0 in the formula, 1,2 ... n, n are positive integer; Wherein, epoxidized polyether base (sesquialter) siloxane crosslinker is with tetramethyl-ring tetrasiloxane (D
4 H) or hydrogeneous hexahedron sesquialter eight siloxanes (T
8 H) with the preparation of the hydrosilylation addition reaction of allyl polyethenoxy polyoxypropylene epoxy group(ing) ether (APEE), temperature of reaction is 80 ℃, Si-H key and CH in the reaction raw materials
2The mol ratio of=CH-key is 1: 1.05.
5. be coated with the use fluorocarbon coating according to the said metal base dress of claim 1, it is characterized in that: said metal nano pigment is rutile titanium dioxide, red stone, silver suboxide or zinc oxide.
6. be coated with the use fluorocarbon coating according to the said metal base dress of claim 1; It is characterized in that: said dispersion agent is polyacrylic ammonium salt, basic metal sylvite or sodium salt; Described sanitas is that the isothiazolones sanitas that uses of water-based system is as blocking pine; Described photostabilizer is hindered amines (HALS) photostabilizer such as photostabilizer 770, and described thickening material is that molecular-weight average is 3～100,000 Natvosol, and said flow agent is flow agent RM2020, glycerine or Ucar 35.
7. epoxidized polyether base according to claim 4 (sesquialter) siloxane crosslinker is characterized in that: in the described EPOS-1 structure, preferential selection contains a/b=7: 1, polyethers epoxy segmental molecular-weight average (M
nFour (2,3-glycidoxy polyoxyethylene polyoxypropylene propyl group) tetramethyl-ring tetrasiloxane of)=400 perhaps contains a=10, b=0, polyethers epoxy segmental molecular-weight average (M
nFour (2,3-glycidoxy T 46155 propyl group) tetramethyl-ring tetrasiloxane of)=500 perhaps contains a/b=7: 3, polyethers epoxy segmental molecular-weight average (M
nFour (2,3-glycidoxy polyoxyethylene polyoxypropylene propyl group) tetramethyl-ring tetrasiloxane of)=1000; In the described EPOS-2 structure, preferential selection contains a/b=7: 1, polyethers epoxy segmental molecular-weight average (M
n)=400 or a=10, b=0, polyethers epoxy segmental molecular-weight average (M
nPolyethers epoxy segmental eight epoxidized polyether propyl group hexahedron sesquialters eight siloxanes of)=500.
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| CN110452575A (en) * | 2018-05-07 | 2019-11-15 | 通用汽车环球科技运作有限责任公司 | The method for forming automatically cleaning membranous system |
| CN112048034A (en) * | 2020-08-17 | 2020-12-08 | 广东恒和永盛实业有限公司 | Antibacterial acrylic emulsion for water-based pigment and preparation method thereof |
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| CN109939911A (en) * | 2019-03-13 | 2019-06-28 | 苏州新颖新材料科技股份有限公司 | A kind of antirust corrosion resistant type complex intensifying precoating plate and its preparation process |
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| CN112048034B (en) * | 2020-08-17 | 2022-11-08 | 广东恒和永盛集团有限公司 | Antibacterial acrylic emulsion for water-based pigment and preparation method thereof |
| CN115260846A (en) * | 2022-08-19 | 2022-11-01 | 江西中氟化学材料科技股份有限公司 | Modified fluororesin aqueous dispersion for forming coating and preparation method thereof |
| CN115260846B (en) * | 2022-08-19 | 2023-08-22 | 江西中氟化学材料科技股份有限公司 | Coating-forming modified fluororesin aqueous dispersion liquid and preparation method thereof |
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Effective date of registration: 20181127 Address after: 516400 Jinyuan Industrial Zone, Chengdong Town, Haifeng County, Guangdong Province Patentee after: Haifeng Mei Da Chemical Coatings Co., Ltd. Address before: No. 1, Weiyang District university garden, Xi'an, Shaanxi Province, Shaanxi Patentee before: Shaanxi University of Science and Technology |