CN105482027A - Acrylic acid modified polysiloxane resin and application thereof to self-stratifying coating - Google Patents
Acrylic acid modified polysiloxane resin and application thereof to self-stratifying coating Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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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
- C09D133/00—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 at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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Abstract
The invention relates to acrylic acid modified polysiloxane resin and application thereof to a self-stratifying coating. The resin contains two kinds of groups for a cross-linking reaction, consequently different curing agents can be selected for curing of the coating prepared from the resin according to performance requirements, and a silicon part and other parts in the resin have special compatibility. The self-stratifying coating containing the acrylic acid modified polysiloxane resin contains a component A and a component B, wherein the component A is prepared from 15-70 wt% of the acrylic acid modified polysiloxane resin, 5-40 wt% of pigment filler, 0.5-2 wt% of auxiliary and 10-45 wt% of solvent, and a coupling agent containing isocyanate groups or aminosilane can be selected for the component B according to coating performance requirements. Compared with an existing acrylic acid modified polysiloxane coating, the coating is high in surface drying speed, can achieve gradient self-stratifying in the film forming process, and has good corrosion resistance and weather resistance on the condition that the organosilicone content is extremely low.
Description
Technical field:
The present invention relates to heavy-duty coating field, relate to a kind of acroleic acid modified polysiloxane resin and the application in self stratifying coating thereof specifically,
Background technology
Along with the development of coatings industry, the market scale of protective system is only second to building coating and occupies demand second.
Protective system resin conventional at present is all made up of C-C due to molecular backbone chain, and the fracture of chemical bond can occur under the irradiation of UV-light, even if the relatively good polyurethane coating of weathering resistance can not meet the weather-proof long-lasting requirement of heavy-duty coating finish paint.
Therefore, the protective system finish paint developing high durable performance has become an important directions of protective system development.Siloxane bond has good thermostability and chemical resistance, and because the bond energy (460kJ/mol) of siloxane bond is higher than the ultraviolet energy (315 ~ 415kJ/mol) in sunlight, polysiloxane has outstanding UV resistant capacity of decomposition.At present, a lot of paint company in the world has done trial in polysiloxane coating materials.In recent years, polysiloxane coating materials also started for building with the performance of its excellence, the protection of equipment etc.
But pure polysiloxane coating materials itself exists the poor problem of sticking power, and there is the problem that the later stage is constantly hydrolyzed, continuous hydrolytic crosslinking causes coating internal stress constantly to increase, loss of adhesion, finally can cause film efflorescence, come off; And the cost of polysiloxane coating materials is relatively high.Therefore, domestic and international many patents all concentrate modified siloxane coating, based on the consideration of weathering resistance, focus mostly on again at acrylic acid modified siloxane paint, as patent CN101348611A, CN102766394A and CN103897109A.But modified polyorganosiloxane coating is relative to pure polysiloxane coating materials, inevitably there is the problem that heavy antisepsis and weather resistance reduce.
Summary of the invention
In order to solve the problem of the weather-proof long-lasting difference of industrial heavy-duty coating finish paint in prior art, the present invention provide firstly a kind of acroleic acid modified polysiloxane resin, this resin provides good dryness and weathering resistance for coating, present invention also offers a kind of using this resin as main component, coordinate the high durable heavy-duty coating of crosslinking and curing agent, this coating can have preferably preservative property and weathering resistance under extremely low silicon content.
Object of the present invention can be achieved through the following technical solutions:
A kind of acroleic acid modified polysiloxane resin, this resin comprises: formed by functional first monomer of hydroxyl-functional organic crylic acid ester, the functional second comonomer of organoalkoxysilane and the 3rd other monomers of class copolymerization in solvent system; Based on the gross weight of monomer in resin, three class monomers can mix on request in any proportion.
Described functional first monomer is selected from 2-Hydroxy ethyl acrylate, 2-hydroxypropyl acrylate, methacrylic acid-2-hydroxy methacrylate and methacrylic acid-2-hydroxy propyl ester wherein one or more; First monomer provides the hydroxyl that can carry out crosslinking reaction.
Described functional second comonomer is selected from γ-methacryloxypropyl trimethoxy silane, γ-methacryloxypropyl, γ-methacryloxypropyl three isopropoxy silane, γ-methacryloyloxypropyl methyl dimethoxysilane, gamma-methyl allyl acyloxypropyl methyldiethoxysilane, methacryloxymethyl pheiiyldimetliyl silane, vinyl trimethylsilane, triethylvinylsilane silane, vinyltriethoxysilane, vinyltrimethoxy silane, methylvinyldimethoxysilane, methyl vinyl diethoxysilane, vinyl silane triisopropoxide wherein one or more.
Stability after being on active service based on the reactive behavior of siloxane bond and coating is considered.Described functional second comonomer is preferably selected from one or more in γ-methacryloxypropyl three isopropoxy silane, γ-methacryloyloxypropyl methyl dimethoxysilane, gamma-methyl allyl acyloxypropyl methyldiethoxysilane, methylvinyldimethoxysilane, methacryloxymethyl pheiiyldimetliyl silane, vinyl trimethylsilane, triethylvinylsilane silane, methyl vinyl diethoxysilane and vinyl silane triisopropoxide.
Preferred functional second comonomer is selected from γ-methacryloxypropyl three isopropoxy silane, γ-methacryloyloxypropyl methyl dimethoxysilane, gamma-methyl allyl acyloxypropyl methyldiethoxysilane, methylvinyldimethoxysilane, methacryloxymethyl pheiiyldimetliyl silane, vinyl trimethylsilane, triethylvinylsilane silane, methyl vinyl diethoxysilane and vinyl silane triisopropoxide wherein one or more.
The 3rd described other monomers of class are selected from one or more in methacrylic acid, methyl methacrylate, vinylbenzene, β-dimethyl-aminoethylmethacrylate, methyl acrylate, ethyl propenoate, isobutyl acrylate, n-butyl acrylate, ethyl acrylate and lauryl methacrylate(LMA).By the adjustable second-order transition temperature of control of Third monomer kind and usage ratio, and adjustablely impel with the consistency of oxyalkylene segment the effect painted in membrane process and reach self demixing.
For making silicon segment and other segments in resin, there is suitable consistency, in coating film process, test gradient self demixing smoothly, the weight percent ratio of functional first monomer of the hydroxyl-functional organic crylic acid ester described in the present invention, the functional second comonomer of organoalkoxysilane and the 3rd other monomers of class is 5 % by weight-30 % by weight: 10 % by weight-30 % by weight: 50 % by weight-80 % by weight; The number-average molecular weight of acroleic acid modified polysiloxane resin is 3000-12000.
The application of acroleic acid modified polysiloxane resin described in the present invention in self stratifying coating, it is characterized in that, described self stratifying coating comprises first component and second component, wherein first component comprises following component by weight percentage: acroleic acid modified polysiloxane resin 15-70 % by weight, color stuffing 5-40 % by weight, auxiliary agent 0.5-2 % by weight, solvent 10-45 % by weight; Second component is solidifying agent, comprises the coupling agent containing isocyanate groups or aminosilane.
The application of acroleic acid modified polysiloxane resin described in the present invention in self stratifying coating, the solvent in the first component in described self stratifying coating is selected from one or more in esters solvent, aromatic hydrocarbon solvent, ketones solvent or ether acetates class high boiling solvent 1-Methoxy-2-propyl acetate; Described esters solvent is selected from vinyl acetic monomer, N-BUTYL ACETATE; Aromatic hydrocarbon solvent is selected from toluene, dimethylbenzene; Ketones solvent is selected from methylethylketone, first isobutyl ketone, pimelinketone.
The application of acroleic acid modified polysiloxane resin described in the present invention in self stratifying coating, solvent in first component in described self stratifying coating is preferably selected from the mixture of esters solvent, aromatic hydrocarbon solvent and ether acetates class high boiling solvent 1-Methoxy-2-propyl acetate three, and the consumption of high boiling solvent accounts for the 5-20 % by weight of coating gross weight.
The application of acroleic acid modified polysiloxane resin described in the present invention in self stratifying coating, it is characterized in that, the coupling agent containing isocyanate groups in the second component in described self stratifying coating is selected from one or more in hexamethylene diisocyanate polymer, diphenylmethanediisocyanate polymer, tolylene diisocyanate polymer and isophorone diisocyanate polymer; Aminosiloxane is selected from one or more in 3-aminopropyltriethoxy diethoxy silane, 3-aminopropyltriethoxy triethoxyl silane, 3-aminopropyl trimethoxysilane, N-phenyl-3-aminopropyl trimethoxysilane, two (3-trimethoxy-silylpropyl) amine, two (3-triethoxysilylpropyltetrasulfide) amine or N-(normal-butyl)-3-aminopropyl trimethoxysilane.
The application of acroleic acid modified polysiloxane resin described in the present invention in self stratifying coating, if select coupling agent containing isocyanate groups as solidifying agent, the weight proportion of second component and first component is 4:100-30:100; If select aminosiloxane as solidifying agent, the weight proportion of second component and first component is 1:100-20:100..
The application of acroleic acid modified polysiloxane resin described in the present invention in self stratifying coating, color stuffing in described self stratifying coating is selected from titanium white, iron oxide black, red iron oxide, zinc oxide, carbon black, molybdate orange, phthalocyanine blue, phthalocyanine green, lemon yellow pigment, aerosil, activated Calcium carbonate, water-ground limestone, silicon powder, diatomite, one or more in talcum, feldspar, polyamide wax filler.
The application of acroleic acid modified polysiloxane resin described in the present invention in self stratifying coating, described auxiliary agent comprises flow agent, defoamer, one or more in dispersion agent and siccative.Flow agent is olefin(e) acid class flow agent, and defoamer is silicon defoamer, and siccative is dibutyl tin laurate.
The preparation method of the acroleic acid modified polysiloxane resin described in the present invention is as follows, by proportioning, three kinds of monomers and Diisopropyl azodicarboxylate are pre-mixed, solvent refluxing is added 15 minutes in reactor, system temperature controls between 110 DEG C-150 DEG C, start to drip mix monomer, within three hours, drip off, after being then incubated 2h, add initiator and be incubated 1h again, finally supply balance solvent.
The preparation method of the first component of the high durable heavy-duty coating described in the present invention comprises the steps: acroleic acid modified polysiloxane resin 15 % by weight-70 % by weight, color stuffing 5 % by weight-40 % by weight, auxiliary agent 0.5 % by weight-2 % by weight, after solvent 10 % by weight-45 % by weight mixes, carry out sand milling, form paint vehicle, after paint vehicle is filtered, obtain organic silicon modified polyurethane high durable heavy-duty coating first component.
The technique effect that the present invention has has:
1 invention, by Molecular Structure Design and component collocation cleverly, makes the self stratifying coating developed have gradient self demixing function.In coating film process, acrylate moiety is mainly had more than needed at the bottom of film, and increase the sticking power with substrate surface, organosilicon composition moves to top layer, improves preservative property and the weathering resistance of surface coatings.Compared with prior art, make organosilicon performance limited in coating to ultimate attainment, can be implemented in extremely low silicone content when, reach preferably performance, and cost advantage is obvious.Just can have good preservative property and weathering resistance when 0.3% silicon content, salt fog can reach more than 5000h, and artificial accelerated aging also can reach more than 5000h.
2 paint film properties are adjustable: by the adjustment of three class monomer consumptions or the adjustment of solidifying agent kind and consumption, and the physical and chemical performance of paint film can regulate (hardness, snappiness, shock resistance etc.) in a wider scope.
3 by controlling the second-order transition temperature of resin, and paint film can realize quick surface drying, can reduce the contamination of dust in air largely.
Embodiment:
In order to implement the present invention better, now for following embodiment, content of the present invention is further described, but protection scope of the present invention is in no way limited to embodiment.
The preparation of acroleic acid modified polysiloxane resin
Embodiment 1
Solvent butyl acetate 700g is added in reactor, stirring is warming up to 120 DEG C, reflux 15 minutes, start to drip methyl methacrylate 800g, Hydroxyethyl acrylate 460g, methacrylic acid 40g, n-butyl acrylate 150g, vinylbenzene 390g, the mixed solution of γ-methacryloyloxypropyl methyl dimethoxysilane 160g and the even Diisopropyl azodicarboxylate 50g of initiator, within 3 hours, drip off, drip process temperature and remain on 120 DEG C, after dripping off rear insulation 2h, add 10g Diisopropyl azodicarboxylate (being dissolved in 200g N-BUTYL ACETATE), be incubated 1h again, finally add discharging after N-BUTYL ACETATE 300g, obtain propionic acid acid modified organic silicone resin-A.
Embodiment 2
Solvent butyl acetate 700g is added in reactor, stirring is warming up to 120 DEG C, reflux 15 minutes, start to drip methyl methacrylate 750g, Hydroxyethyl acrylate 460g, methacrylic acid 40g, n-butyl acrylate 190g, vinylbenzene 260g, the mixed solution of γ-methacryloyloxypropyl methyl dimethoxysilane 300g and initiator Diisopropyl azodicarboxylate 50g, within 3 hours, drip off, drip process temperature and remain on 120 DEG C, after dripping off rear insulation 2h, add 10g Diisopropyl azodicarboxylate (being dissolved in 200g N-BUTYL ACETATE), be incubated 1h again, finally add discharging after N-BUTYL ACETATE 300g, obtain propionic acid acid modified organic silicone resin-B.
Embodiment 3
Solvent butyl acetate 700g is added in reactor, stirring is warming up to 120 DEG C, reflux 15 minutes, start to drip methyl methacrylate 750g, Hydroxyethyl acrylate 460g, methacrylic acid 40g, the mixed solution of n-butyl acrylate 190g, vinylbenzene 260g, vinyl silane triisopropoxide 300g and the even Diisopropyl azodicarboxylate 50g of initiator, within 3 hours, drip off, drip process temperature and remain on 120 DEG C, after dripping off rear insulation 2h, add 10g Diisopropyl azodicarboxylate (being dissolved in 200g N-BUTYL ACETATE), be incubated 1h again, finally add discharging after N-BUTYL ACETATE 300g.Obtain propionic acid acid modified organic silicone resin-C.
Embodiment 4
Solvent butyl acetate 700g is added in reactor, stirring is warming up to 120 DEG C, reflux 15 minutes, start to drip methyl methacrylate 550g, Hydroxyethyl acrylate 460g, methacrylic acid 40g, the mixed solution of n-butyl acrylate 390g, vinylbenzene 260g, vinyl silane triisopropoxide 300g and the even Diisopropyl azodicarboxylate 50g of initiator, within 3 hours, drip off, drip process temperature and remain on 120 DEG C, after dripping off rear insulation 2h, add 10g Diisopropyl azodicarboxylate (being dissolved in 200g N-BUTYL ACETATE), be incubated 1h again, finally add discharging after N-BUTYL ACETATE 300g.Obtain propionic acid acid modified organic silicone resin-D.
The preparation of polyurethane-modified organosilicon white paint:
Embodiment 5
Formula: above-mentioned propionic acid synthesized sour modified organic silicone resin-A570g, R-706 titanium white 230g (E.I.Du Pont Company R-706), dimethylbenzene 120g (industrial goods), pimelinketone 77.9g (industrial goods), flow agent 2g (German Bi Ke company BYK-320), dibutyl tin laurate 0.1g (medicine company limited-liability company of traditional Chinese medicines group).
Technique: by resin, color stuffing, auxiliary agent, after solvent, carries out sand milling, forms paint vehicle, obtains polyurethane-modified organosilicon high durable heavy-duty coating first component first-5 to paint vehicle after filtering.
Embodiment 6
Formula: above-mentioned propionic acid synthesized sour modified organic silicone resin-A460g, R-706 titanium white 340g (E.I.Du Pont Company R-706), dimethylbenzene 120g (industrial goods), pimelinketone 77.9g (industrial goods), flow agent 2g (German Bi Ke company BYK-320), dibutyl tin laurate 0.1g (medicine company limited-liability company of traditional Chinese medicines group).
Technique: by the third resin, color stuffing, auxiliary agent, after solvent, carries out sand milling, forms paint vehicle, obtains polyurethane-modified organosilicon high durable heavy-duty coating first component first-6 to paint vehicle after filtering.
Embodiment 7
Formula: above-mentioned propionic acid synthesized sour modified organic silicone resin-B460g, R-706 titanium white 340g (E.I.Du Pont Company R-706), dimethylbenzene 120g (industrial goods), pimelinketone 77.9g (industrial goods), flow agent 2g (German Bi Ke company BYK-320), dibutyl tin laurate 0.1g (medicine company limited-liability company of traditional Chinese medicines group).
Technique: by the third resin, color stuffing, auxiliary agent, after solvent, carries out sand milling, forms paint vehicle, obtains polyurethane-modified organosilicon high durable heavy-duty coating first component first-7 to paint vehicle after filtering.
Embodiment 8
Formula: above-mentioned propionic acid synthesized sour modified organic silicone resin-C460g, R-706 titanium white 340g (E.I.Du Pont Company R-706), dimethylbenzene 120g (industrial goods), pimelinketone 77.9g (industrial goods), flow agent 2g (German Bi Ke company BYK-320), dibutyl tin laurate 0.1g (medicine company limited-liability company of traditional Chinese medicines group).
Technique: by the third resin, color stuffing, auxiliary agent, after solvent, carries out sand milling, forms paint vehicle, obtains polyurethane-modified organosilicon high durable heavy-duty coating first component first-8 to paint vehicle after filtering.
Embodiment 9
Formula: above-mentioned propionic acid synthesized sour modified organic silicone resin-D460g, R-706 titanium white 340g (E.I.Du Pont Company R-706), dimethylbenzene 120g (industrial goods), pimelinketone 77.9g (industrial goods), flow agent 2g (German Bi Ke company BYK-320), dibutyl tin laurate 0.1g (medicine company limited-liability company of traditional Chinese medicines group).
Technique: by the third resin, color stuffing, auxiliary agent, after solvent, carries out sand milling, forms paint vehicle, obtains organic-silicon-modified high durable heavy-duty coating first component first-9 to paint vehicle after filtering.
Coating performance compares
Experimental example 10
The first component of above-mentioned experimental example 5-9 is equipped with solidifying agent second component, according to the standard of various test, the obtained standard film thickness test sample plate of spraying.N3390 in following table is the solidifying agent that Bayer A.G produces, and KH550 is the coupling agent that medicine company limited-liability company of traditional Chinese medicines group produces.
| Be coated with-5 | Be coated with-6 | Be coated with-7 | Be coated with-8 | Be coated with-9 | |
| First component | First-5 | First-6 | First-7 | First-8 | First-9 |
| Consumption | 60g | 60g | 60g | 60g | 60g |
| N3390 (Bayer) | 6g | 5g | 5g | 5g | 0g |
| KH550 (traditional Chinese medicines) | 0g | 0g | 0g | 0g | 3g |
The coating performance of 5 kinds of formulas is as follows:
Found that in painting-5 set forth in the present invention, be coated with-6, the surface drying time of painting-7 and painting-8 four paint films, all within 0.5h, achieves quick surface drying.
By being coated with the comparison of-7 and painting-9, by the adjustment of three class monomers in resin and the adjustment of solidifying agent kind, do not affecting chemicals-resistant, weather-proof with under the prerequisite of antiseptic property, the coating that snappiness is better and hardness is higher can be obtained respectively.
Result also find silicon content be only 0.29% painting-6 fill a prescription artificial accelerated aging just can reach 5000h, neutral salt spray after 5000h also without any exception.When silicon content is 0.67%, artificial accelerated aging even reaches 7000h.
Claims (10)
1. an acroleic acid modified polysiloxane resin, it is characterized in that, this resin comprises: formed by functional first monomer of hydroxyl-functional organic crylic acid ester, the functional second comonomer of organoalkoxysilane and the 3rd other monomers of class copolymerization in solvent system, described functional first monomer is selected from 2-Hydroxy ethyl acrylate, 2-hydroxypropyl acrylate, methacrylic acid-2-hydroxy methacrylate and methacrylic acid-2-hydroxy propyl ester wherein one or more, described functional second comonomer is selected from γ-methacryloxypropyl trimethoxy silane, γ-methacryloxypropyl, γ-methacryloxypropyl three isopropoxy silane, γ-methacryloyloxypropyl methyl dimethoxysilane, gamma-methyl allyl acyloxypropyl methyldiethoxysilane, methacryloxymethyl pheiiyldimetliyl silane, vinyl trimethylsilane, triethylvinylsilane silane, vinyltriethoxysilane, vinyltrimethoxy silane, methylvinyldimethoxysilane, methyl vinyl diethoxysilane, vinyl silane triisopropoxide wherein one or more, the 3rd described other monomers of class are selected from one or more in methacrylic acid, methyl methacrylate, vinylbenzene, β-dimethyl-aminoethylmethacrylate, methyl acrylate, ethyl propenoate, isobutyl acrylate, n-butyl acrylate, ethyl acrylate and lauryl methacrylate(LMA).
2. acroleic acid modified polysiloxane resin according to claim 1, it is characterized in that, described functional second comonomer is selected from one or more in γ-methacryloxypropyl three isopropoxy silane, γ-methacryloyloxypropyl methyl dimethoxysilane, gamma-methyl allyl acyloxypropyl methyldiethoxysilane, methylvinyldimethoxysilane, methacryloxymethyl pheiiyldimetliyl silane, vinyl trimethylsilane, triethylvinylsilane silane, methyl vinyl diethoxysilane and vinyl silane triisopropoxide.
3. acroleic acid modified polysiloxane resin according to claim 1, it is characterized in that, the weight percent ratio of functional first monomer of described hydroxyl-functional organic crylic acid ester, the functional second comonomer of organoalkoxysilane and the 3rd other monomers of class is 5-30 % by weight: 10-30 % by weight: 50-80 % by weight; The number-average molecular weight of acroleic acid modified polysiloxane resin is 3000-12000.
4. one kind according to the application of the acroleic acid modified polysiloxane resin one of claims 1 to 3 Suo Shu in self stratifying coating, it is characterized in that, described self stratifying coating comprises first component and second component, wherein first component comprises following component by weight percentage: acroleic acid modified polysiloxane resin 15-70 % by weight, color stuffing 5-40 % by weight, auxiliary agent 0.5-2 % by weight, solvent 10-45 % by weight; Second component is solidifying agent, comprises the coupling agent containing isocyanate groups or aminosilane.
5. the application of acroleic acid modified polysiloxane resin according to claim 4 in self stratifying coating, it is characterized in that, the solvent in the first component in described self stratifying coating is selected from one or more in esters solvent, aromatic hydrocarbon solvent, ketones solvent or ether acetates class high boiling solvent 1-Methoxy-2-propyl acetate; Described esters solvent is selected from vinyl acetic monomer, N-BUTYL ACETATE; Aromatic hydrocarbon solvent is selected from toluene, dimethylbenzene; Ketones solvent is selected from methylethylketone, first isobutyl ketone, pimelinketone.
6. the application of acroleic acid modified polysiloxane resin according to claim 5 in self stratifying coating, it is characterized in that, solvent in first component in described self stratifying coating is selected from the mixture of esters solvent, aromatic hydrocarbon solvent and ether acetates class high boiling solvent 1-Methoxy-2-propyl acetate three, and the consumption of high boiling solvent accounts for the 5-20 % by weight of coating gross weight.
7. the application of acroleic acid modified polysiloxane resin according to claim 4 in self stratifying coating, it is characterized in that, the coupling agent containing isocyanate groups in the second component in described self stratifying coating is selected from one or more in hexamethylene diisocyanate polymer, diphenylmethanediisocyanate polymer, tolylene diisocyanate polymer and isophorone diisocyanate polymer; Aminosiloxane is selected from one or more in 3-aminopropyltriethoxy diethoxy silane, 3-aminopropyltriethoxy triethoxyl silane, 3-aminopropyl trimethoxysilane, N-phenyl-3-aminopropyl trimethoxysilane, two (3-trimethoxy-silylpropyl) amine, two (3-triethoxysilylpropyltetrasulfide) amine or N-(normal-butyl)-3-aminopropyl trimethoxysilane.
8. the application of acroleic acid modified polysiloxane resin according to claim 7 in self stratifying coating, is characterized in that, if select coupling agent containing isocyanate groups as solidifying agent, the weight proportion of second component and first component is 4:100-30:100; If select aminosiloxane as solidifying agent, the weight proportion of second component and first component is 1:100-20:100..
9. the application of acroleic acid modified polysiloxane resin according to claim 4 in self stratifying coating, it is characterized in that, color stuffing described in described self stratifying coating is selected from titanium white, iron oxide black, red iron oxide, zinc oxide, carbon black, molybdate orange, phthalocyanine blue, phthalocyanine green, lemon yellow pigment, aerosil, activated Calcium carbonate, water-ground limestone, silicon powder, diatomite, one or more in talcum, feldspar, polyamide wax filler.
10. the application of acroleic acid modified polysiloxane resin according to claim 4 in self stratifying coating, is characterized in that, described auxiliary agent comprises flow agent, defoamer, one or more in dispersion agent and siccative.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885626A (en) * | 2016-05-06 | 2016-08-24 | 天津翔盛新材料有限公司 | Special self-stratifying antifouling type powdery coating for polypropylene-made bathroom product as well as preparation method and application of special self-stratifying antifouling type powdery coating |
| CN106675133A (en) * | 2016-12-22 | 2017-05-17 | 中昊北方涂料工业研究设计院有限公司 | High-hardness acrylate-modified polysiloxane resin and coating employing high-hardness acrylate-modified polysiloxane resin as base material |
| CN106675399A (en) * | 2016-12-07 | 2017-05-17 | 陕西宝塔山油漆股份有限公司 | Moisture curable crylic acid modified polysiloxane coating and preparation method thereof |
| CN109321065A (en) * | 2018-10-09 | 2019-02-12 | 广东嘉宝莉科技材料有限公司 | A kind of transparent drawing board paint and preparation method thereof |
| CN109868026A (en) * | 2019-02-20 | 2019-06-11 | 中南大学 | A kind of Silicone-Modified Acrylate Resin and preparation method thereof and the hydrophobic weather-proof acrylic resin modified coating of sustained release |
| CN110591019A (en) * | 2019-09-26 | 2019-12-20 | 科诺思膜技术(厦门)有限公司 | Modified acrylic resin solution and preparation method thereof, anticorrosive paint and application thereof |
| CN111363440A (en) * | 2020-03-13 | 2020-07-03 | 熊长生 | Organic silicon resin anticorrosive paint with good corrosion resistance and adhesion |
| CN112979863A (en) * | 2021-04-29 | 2021-06-18 | 宁波市嘉化新材料科技有限公司 | Modified polyacrylate emulsion and application thereof in preparation of oil-proof and water-proof paper |
| CN113402652A (en) * | 2021-06-29 | 2021-09-17 | 苏州易昇光学材料有限公司 | Modified acrylic resin and preparation method and application thereof |
| WO2023070910A1 (en) * | 2021-10-25 | 2023-05-04 | 江苏冠军科技集团股份有限公司 | Quick-drying high-weather-resistance acrylic acid mechanical universal coating and preparation method therefor and application thereof |
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| CN105885626B (en) * | 2016-05-06 | 2017-12-12 | 天津翔盛新材料有限公司 | A kind of special self demixing anti-fouling type powdery paints of polypropylene material sanitaryware and preparation method and application |
| CN105885626A (en) * | 2016-05-06 | 2016-08-24 | 天津翔盛新材料有限公司 | Special self-stratifying antifouling type powdery coating for polypropylene-made bathroom product as well as preparation method and application of special self-stratifying antifouling type powdery coating |
| CN106675399A (en) * | 2016-12-07 | 2017-05-17 | 陕西宝塔山油漆股份有限公司 | Moisture curable crylic acid modified polysiloxane coating and preparation method thereof |
| CN106675133B (en) * | 2016-12-22 | 2019-09-03 | 中昊北方涂料工业研究设计院有限公司 | The acrylate modified polyorganosiloxane resin of a kind of high rigidity and using it as the coating of base-material |
| CN106675133A (en) * | 2016-12-22 | 2017-05-17 | 中昊北方涂料工业研究设计院有限公司 | High-hardness acrylate-modified polysiloxane resin and coating employing high-hardness acrylate-modified polysiloxane resin as base material |
| CN109321065A (en) * | 2018-10-09 | 2019-02-12 | 广东嘉宝莉科技材料有限公司 | A kind of transparent drawing board paint and preparation method thereof |
| CN109868026A (en) * | 2019-02-20 | 2019-06-11 | 中南大学 | A kind of Silicone-Modified Acrylate Resin and preparation method thereof and the hydrophobic weather-proof acrylic resin modified coating of sustained release |
| CN109868026B (en) * | 2019-02-20 | 2020-06-16 | 中南大学 | Organic silicon modified acrylate resin, preparation method thereof and hydrophobic weather-resistant slow-release modified acrylic resin coating |
| CN110591019A (en) * | 2019-09-26 | 2019-12-20 | 科诺思膜技术(厦门)有限公司 | Modified acrylic resin solution and preparation method thereof, anticorrosive paint and application thereof |
| CN111363440A (en) * | 2020-03-13 | 2020-07-03 | 熊长生 | Organic silicon resin anticorrosive paint with good corrosion resistance and adhesion |
| CN112979863A (en) * | 2021-04-29 | 2021-06-18 | 宁波市嘉化新材料科技有限公司 | Modified polyacrylate emulsion and application thereof in preparation of oil-proof and water-proof paper |
| CN112979863B (en) * | 2021-04-29 | 2022-03-15 | 宁波市嘉化新材料科技有限公司 | Modified polyacrylate emulsion and application thereof in preparation of oil-proof and water-proof paper |
| CN113402652A (en) * | 2021-06-29 | 2021-09-17 | 苏州易昇光学材料有限公司 | Modified acrylic resin and preparation method and application thereof |
| WO2023070910A1 (en) * | 2021-10-25 | 2023-05-04 | 江苏冠军科技集团股份有限公司 | Quick-drying high-weather-resistance acrylic acid mechanical universal coating and preparation method therefor and application thereof |
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