CN108441090A - Coil coating and preparation method thereof - Google Patents
Coil coating and preparation method thereof Download PDFInfo
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- CN108441090A CN108441090A CN201810166788.1A CN201810166788A CN108441090A CN 108441090 A CN108441090 A CN 108441090A CN 201810166788 A CN201810166788 A CN 201810166788A CN 108441090 A CN108441090 A CN 108441090A
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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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- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
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- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08L2201/02—Flame or fire retardant/resistant
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- 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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Abstract
The invention belongs to technical field of coatings, a kind of coil coating and preparation method thereof is referred in particular to, coil coating of the invention includes 45 55 parts of epoxy modified polyester resin, 12 18 parts of amino resins, 8 11 parts of levelling agent, 10 20 parts of pigment, 10 18 parts of filler, 5 10 parts of dispersant, 58 parts of antifoaming agent, 15 25 parts of solvent, 58 parts of antioxidant；Solve the problems, such as that coil coating poor adhesive force, flexibility are low in the prior art, resistance to marring is poor, resistance to acid and alkali is poor.
Description
Technical field
The present invention relates to technical field of coatings is belonged to, a kind of coil coating and preparation method thereof is referred in particular to.
Background technology
Production, the development of coil coating at home have the history of decades.Pre-coated metal coiled material is due to its changeable color
Color, light, easy processing and excellent mechanical performance, have obtained a large amount of application, and the demand of coil coating is increasing.Precoating
Metal coiled material has plurality of layers, and general front from inside outwards has：Zinc coat, passivation layer, priming paint, finishing coat, the back side from inside outwards have：Plating
Zinc layers, passivation layer, back of the body paint.Different coatings has a different performance requirements, and priming paint needs good adhesive force, anticorrosive property and soft
Toughness, finishing coat need good resistance to marring, resistance to acid and alkali.Good coating needs the perfect cooperation of priming paint and finishing coat, should
The processability having had, the resistance to marring having had again will also accomplish good corrosion resistance and acid and alkali-resistance under the premise of environmental protection
Property.
Invention content
The present invention solves in the prior art for a kind of coil coating of problem of the prior art offer and preparation method thereof
The problem that coil coating poor adhesive force, flexibility are low, resistance to marring is poor, resistance to acid and alkali is poor.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
One of the objects of the present invention is to provide a kind of coil coatings, including following component：
The preparation method of the epoxy modified polyester resin includes the following steps：
(1) preparation of polyester resin
It is equipped in the reactor of blender, condenser, heater at one, 30 parts of trimethylolethanes, 22 parts of seasons is added
Penta tetrol, 20 parts of 1,3- cyclohexanedimethanols, 25 parts of terephthalic acid (TPA)s, 23 parts of M-phthalic acids, 15 parts of glutaric acids, 15 parts of hexahydros
Phthalic anhydride, 5 parts of dibutyl tin acetates are warming up to 160 DEG C after adding, keep the temperature 2 hours, are then warming up to 180 DEG C, keep the temperature 1 hour,
200 DEG C are being warming up to, is keeping the temperature 1 hour, is finally being warming up to 220 DEG C, is keeping the temperature 2 hours；10 parts of dimethylbenzene are added, are cooled to 180 DEG C；
(2) preparation of epoxy modified polyester resin
25 parts of epoxy resin, the insulation reaction at 165 DEG C are added into the reactor of step (1), until acid value is less than
10mgKOH/g is hereinafter, be added 80 parts of No. 100 aromatic solvents, 70 parts of cyclohexanone thinnings；Obtain the epoxy-modified polyester tree
Fat.
Three primary hydroxyls of trimethylolethane band, the ester group of the maskable polyester of space steric effect of ethyl thereon, carry
High hydrolytic resistance, 1,3-CHDM belong to cycloaliphatic diols, 30 parts of trimethylolethanes, 22 parts of pentaerythrites, 20
Part 1,3-CHDM is used cooperatively so that hardness, flexibility, adhesive force, impact resistance and the cost of polyester reach
Balance.
Gained epoxy resin modification polyester resin solid content is 50%, viscosity 125KU, acid value 8mgKOH/g, glass
It is 550 DEG C to change temperature, hydroxyl value 60mgKOH/g.Epoxy resin can improve hardness, the toughness of paint film with after polyester resin crosslinking,
Enhance the adhesive force to metal base.
The amino resins is by full Amino resin and butylated amino resin according to mass ratio 3:1 composition, it is described
Pigment is rutile type nano titanic oxide, grain size 20-60nm.What pigment of the present invention was selected is rutile type nano titanium dioxide
Titanium enhances the mobility of coating by adding Nano titanium dioxide, reduces the surface tension of substance, can be to coating raw material
Particle surface properties carry out nano modification, make coating raw material is evengranular to scatter；Coating raw material particle can be adjusted
Motility improves coating dispersibility, shortens jitter time, and then improve caking property, the crack resistance of coating.
The dispersant is by dimethyl silicone polymer and ethylene-vinyl acetate copolymer according to mass ratio 1:1.5 compositions, institute
It is polyether-modified dimethyl silicone polymer to state levelling agent.
The antifoaming agent is by organic silicon modified by polyether, polysiloxanes according to mass ratio 3:2 compositions；The solvent is by diformazan
Benzene, the heavy aromatics containing C9-C10, cyclohexanone are according to mass ratio 2:5:3 compositions.
The antioxidant is composed of the following components：10 parts of soybean oil, 5 parts of the tert-butyl alcohol, 5 parts of atoleine.The present invention is anti-
Oxidant feed is easily purchased, at low cost, does not contain petroleum mineral oil component, and whole oil series solvents, soya-bean oil tool are substituted with soya-bean oil
Have and be easy the characteristics such as degradation, hypotoxicity and low VOC, reduces the pollution to environment.
The filler is by automatically cleaning material and fire retardant mass ratio 1:4 compositions；The automatically cleaning material by silver vanadate, receive
Rice titanium dioxide, nano zine oxide are according to mass ratio 3:2:1 composition；The grain size of the nano-titanium dioxide is 20-40nm, described
The grain size of nano zine oxide is 20-30nm；By introducing silver vanadate, nano-titanium dioxide and nano zine oxide in coil coating
To realize the self-cleaning function of coil coating；Meanwhile antirusting paint is increased by addition nanometer grade silica, zinc oxide
Mobility, additionally it is possible to the surface tension for reducing substance is added to coil coating, can be carried out to each raw material component surface nature
Nano modification makes raw material components uniformly scatter；The motility of raw material components can be adjusted, coil coating dispersion is improved
Property, shorten jitter time.
The fire retardant is composed of the following components：22 parts of melamine modified phenolic resin, is received 8 parts of hollow glass micropearl
9 parts of aluminium hydroxide of rice, 8 parts of nano-sized magnesium hydroxide；The grain size of the nano-aluminum hydroxide and nano-sized magnesium hydroxide is for 20-
50nm；
Wherein, magnesium hydroxide and aluminium hydroxide are the fire retardants of fillibility, are decomposed between 340 DEG C -450 DEG C, when being heated
It decomposites a large amount of water and absorbs heat, slow down the burning velocity of material, while releasing a large amount of vapor to dilute fuel gas
Concentration, help to inhibit to burn, and reduce smoke amount；Both magnesium hydroxide and aluminium hydroxide are used in combination can mutually complementation
It fills, flame retardant effect is better than effect is used alone, and has the function of pressing down cigarette, smoke elimination well；The nano-aluminum hydroxide of the present invention
Grain size with nano-sized magnesium hydroxide is that can be very good to be dispersed between other components for 20-50nm.
The grain size of the hollow glass micropearl is 60-80 μm, 1-2 μm of wall thickness.
The grain size of the hollow glass micropearl is 60-80 μm, 1-1.2 μm of wall thickness；The hollow glass micropearl of the application has most
Small specific surface area and low oil absorbency can greatly reduce the usage amount that other in coating respectively produce composition, meanwhile, surface more anti-ization
Corrosion is learned, has reflex to light；So that aqueous epoxy resins fire-proof paint coat has antifouling, anticorrosion, antiultraviolet, prevents
Xanthochromia and anti-scratch effect.Contain thin gas inside compact arranged hollow glass micropearl, thermal coefficient is low, so resistance to
There is fiery paint coatings extraordinary heat insulation and preservation effect, hollow glass micropearl can also effectively enhance flowing, the levelability of coating；
Containing gas there is preferable cold-and-heat resistent shrinkage to greatly reduce fire resisting to enhance the elasticity of coating in hollow glass micropearl
Coating causes to crack and fall off because being expanded with heat and contract with cold.
The preparation method of the melamine modified phenolic resin includes the following steps：5 parts are added into reaction kettle
27wt% formalins adjust pH to 8.0 with the NaOH solution of 25wt%, 0.2 part of phenolic resin are added, adds 6 parts of trimerizations
Cyanamide is heated to 90 DEG C, and insulation reaction is after 2 hours, and cooling down to room temperature is to get melamine modified phenolic resin.
In the prior art, the common melamine formaldehyde resin and phenolic resin high temperature resistance used in coating is poor,
At relatively high temperatures in use, its mobile performance is not fine, the cured layer of smooth densification cannot be formed, plate face is susceptible to needle
Hole, the scratch-resistant performance of resistant are bad.Melamine modified phenolic resin used in the present invention replaces common melamine formaldehyde resin
And phenolic resin, the high temperature resistance high-temperature behavior of coil coating is improved, at relatively high temperatures in use, the coiled material of the present invention
Coating also has good mobility, forms smooth fine and close cured layer, and plate face is less prone to pin hole, and the scratch-resistant performance of resistant is good.
The second object of the present invention is to provide a kind of method preparing above-mentioned coil coating and presses under stirring conditions
According to the parts by weight meter of raw material components, epoxy modified polyester resin, amino resins, dispersant, solvent, stirring are added into reaction kettle
After uniformly, antifoaming agent, levelling agent, antioxidant, filler is added, continues to stir 30min, adds pigment, continue to stir
30min is to get the coil coating.
Beneficial effects of the present invention：
(1) present invention is first modified polyester resin with epoxy resin, and gained epoxy resin modification polyester resin is solid
Content is 50%, viscosity 125KU, acid value 8mgKOH/g, and glass transition temperature is 550 DEG C, hydroxyl value 60mgKOH/g.Asphalt mixtures modified by epoxy resin
Fat can improve hardness, the toughness of paint film, enhance the adhesive force to metal base with after polyester resin crosslinking.
(2) what pigment of the present invention was selected is that grain size is 20-60nm rutile type nano titanic oxides, by adding nanoscale
Titanium dioxide enhances the mobility of coating, reduces the surface tension of substance, can be carried out to coating raw material particle surface properties
Nano modification makes coating raw material is evengranular to scatter；The motility of coating raw material particle can be adjusted, coating point is improved
Property is dissipated, shortens jitter time, and then improve caking property, the crack resistance of coating.
(3) antioxidant raw material of the present invention is easily purchased, at low cost, does not contain petroleum mineral oil component, is substituted with soya-bean oil complete
Portion's oil series solvent, soya-bean oil, which has, is easy the characteristics such as degradation, hypotoxicity and low VOC, reduces the pollution to environment.
(4) present invention is self-cleaning to realize by introducing nano-titanium dioxide, nano zine oxide, silver vanadate in self-cleaning layer
Function；After the coating with self-cleaning function of the coiled material coating present invention, it is possible to reduce the artificial cleaning to coiled material surface.
Specific implementation mode
For the ease of the understanding of those skilled in the art, with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of coil coating of the present embodiment, including following component：
The amino resins is by full Amino resin and butylated amino resin according to mass ratio 3:1 composition.
The dispersant is by dimethyl silicone polymer and ethylene-vinyl acetate copolymer according to mass ratio 1:1.5 compositions, institute
It is polyether-modified dimethyl silicone polymer to state levelling agent.
The antifoaming agent is by organic silicon modified by polyether, polysiloxanes according to mass ratio 3:2 compositions；The solvent is by diformazan
Benzene, the heavy aromatics containing C9-C10, cyclohexanone are according to mass ratio 2:5:3 compositions.
The antioxidant is composed of the following components：10 parts of soybean oil, 5 parts of the tert-butyl alcohol, 5 parts of atoleine.
The filler is by automatically cleaning material and fire retardant mass ratio 1:4 compositions；The automatically cleaning material by silver vanadate, receive
Rice titanium dioxide, nano zine oxide are according to mass ratio 3:2:1 composition；
The fire retardant is composed of the following components：22 parts of melamine modified phenolic resin, is received 8 parts of hollow glass micropearl
9 parts of aluminium hydroxide of rice, 8 parts of nano-sized magnesium hydroxide.
Embodiment 2
The aqueous epoxy resins fireproof coating of the present embodiment, including following component：
The amino resins is by full Amino resin and butylated amino resin according to mass ratio 3:1 composition.
The dispersant is by dimethyl silicone polymer and ethylene-vinyl acetate copolymer according to mass ratio 1:1.5 compositions, institute
It is polyether-modified dimethyl silicone polymer to state levelling agent.
The antifoaming agent is by organic silicon modified by polyether, polysiloxanes according to mass ratio 3:2 compositions；The solvent is by diformazan
Benzene, the heavy aromatics containing C9-C10, cyclohexanone are according to mass ratio 2:5:3 compositions.
The antioxidant is composed of the following components：10 parts of soybean oil, 5 parts of the tert-butyl alcohol, 5 parts of atoleine.
The filler is by automatically cleaning material and fire retardant mass ratio 1:4 compositions；The automatically cleaning material by silver vanadate, receive
Rice titanium dioxide, nano zine oxide are according to mass ratio 3:2:1 composition；
The fire retardant is composed of the following components：22 parts of melamine modified phenolic resin, is received 8 parts of hollow glass micropearl
9 parts of aluminium hydroxide of rice, 8 parts of nano-sized magnesium hydroxide.
Embodiment 3
The aqueous epoxy resins fireproof coating of the present embodiment, including following component：
The amino resins is by full Amino resin and butylated amino resin according to mass ratio 3:1 composition.
The dispersant is by dimethyl silicone polymer and ethylene-vinyl acetate copolymer according to mass ratio 1:1.5 compositions, institute
It is polyether-modified dimethyl silicone polymer to state levelling agent.
The antifoaming agent is by organic silicon modified by polyether, polysiloxanes according to mass ratio 3:2 compositions；The solvent is by diformazan
Benzene, the heavy aromatics containing C9-C10, cyclohexanone are according to mass ratio 2:5:3 compositions.
The antioxidant is composed of the following components：10 parts of soybean oil, 5 parts of the tert-butyl alcohol, 5 parts of atoleine.
The filler is by automatically cleaning material and fire retardant mass ratio 1:4 compositions；The automatically cleaning material by silver vanadate, receive
Rice titanium dioxide, nano zine oxide are according to mass ratio 3:2:1 composition；
The fire retardant is composed of the following components：22 parts of melamine modified phenolic resin, is received 8 parts of hollow glass micropearl
9 parts of aluminium hydroxide of rice, 8 parts of nano-sized magnesium hydroxide.
Embodiment 4
The preparation method of coil coating described in embodiment 1-3, includes the following steps：
Under stirring conditions, according to the parts by weight meter of raw material components, be added into reaction kettle epoxy modified polyester resin,
Amino resins, dispersant, solvent after stirring evenly, are added antifoaming agent, levelling agent, antioxidant, filler, continue to stir
30min adds pigment, continues to stir 30min to get the coil coating.
Adhesion, impact resistance, the pencil hardness H of film etc. that coil coating in 1-3 of the embodiment of the present invention is formed
Various experiments；
Comparative example
Use the film that the coil coating of certain model in the market is formed for the comparative example of the present invention.
From the comparison of upper table can be seen that the present invention coil coating solidification after adhesive force is good, flexibility is good, resistance to marring
The excellent problem of good, resistance to acid and alkali, salt fog resistance.
Basic principles and main features of the invention and the present invention has been shown and described above a little, the technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (10)
1. coil coating, it is characterised in that：Including following component：
2. coil coating as described in claim 1, it is characterised in that：The preparation method of the epoxy modified polyester resin includes
Following steps：
(1) preparation of polyester resin
It is equipped in the reactor of blender, condenser, heater at one, 30 parts of trimethylolethanes, 22 parts of Ji Wusi is added
Alcohol, 20 parts of 1,3- cyclohexanedimethanols, 25 parts of terephthalic acid (TPA)s, 23 parts of M-phthalic acids, 15 parts of glutaric acids, 15 parts of hexahydrobenzenes
Acid anhydride, 5 parts of dibutyl tin acetates are warming up to 160 DEG C after adding, keep the temperature 2 hours, are then warming up to 180 DEG C, keep the temperature 1 hour,
200 DEG C are warming up to, keeps the temperature 1 hour, is finally warming up to 220 DEG C, keeps the temperature 2 hours；10 parts of dimethylbenzene are added, are cooled to 180 DEG C；
(2) preparation of epoxy modified polyester resin
25 parts of epoxy resin, the insulation reaction at 165 DEG C are added into the reactor of step (1), until acid value is less than
10mgKOH/g is hereinafter, be added 80 parts of No. 100 aromatic solvents, 70 parts of cyclohexanone thinnings；Obtain the epoxy-modified polyester tree
Fat.
3. coil coating as described in claim 1, it is characterised in that：The amino resins is by full Amino resin and fourth
Etherified amino resins are according to mass ratio 3:1 composition, the pigment are rutile type nano titanic oxide, grain size 20-60nm.
4. coil coating as described in claim 1, it is characterised in that：The dispersant is by dimethyl silicone polymer and ethylene-
Acetate ethylene copolymer is according to mass ratio 1:1.5 compositions, the levelling agent are polyether-modified dimethyl silicone polymer.
5. coil coating as described in claim 1, it is characterised in that：The antifoaming agent is by organic silicon modified by polyether, poly- silica
Alkane is according to mass ratio 3:2 compositions；The solvent is by dimethylbenzene, the heavy aromatics containing C9-C10, cyclohexanone according to mass ratio 2:5:3 groups
At.
6. coil coating as described in claim 1, it is characterised in that：The antioxidant is composed of the following components：Soybean oil
10 parts, 5 parts of the tert-butyl alcohol, 5 parts of atoleine.
7. coil coating as described in claim 1, it is characterised in that：The filler is by automatically cleaning material and fire retardant quality
Than 1:4 compositions；The automatically cleaning material by silver vanadate, nano-titanium dioxide, nano zine oxide according to mass ratio 3:2:1 composition；
The fire retardant is composed of the following components：22 parts of melamine modified phenolic resin, 8 part, nanometer hydrogen of hollow glass micropearl
9 parts of aluminium oxide, 8 parts of nano-sized magnesium hydroxide.
8. coil coating as claimed in claim 7, it is characterised in that：The grain size of the nano-titanium dioxide is 20-40nm, institute
The grain size for stating nano zine oxide is 20-30nm；The grain size of the nano-aluminum hydroxide and nano-sized magnesium hydroxide is for 20-
50nm；The grain size of the hollow glass micropearl is 60-80 μm, 1-2 μm of wall thickness.
9. coil coating as claimed in claim 7, it is characterised in that：The preparation method of the melamine modified phenolic resin
Include the following steps：5 parts of 27wt% formalins are added into reaction kettle, adjusts pH to 8.0 with the NaOH solution of 25wt%, adds
Enter 0.2 part of phenolic resin, add 6 parts of melamines, is heated to 90 DEG C, insulation reaction is after 2 hours, cooling down to room
Temperature is to get melamine modified phenolic resin.
10. a kind of preparation method of such as claim 1-9 any one of them coil coatings, it is characterised in that：In the item of stirring
Under part, according to the parts by weight meter of raw material components, epoxy modified polyester resin, amino resins, dispersant, molten is added into reaction kettle
After stirring evenly, antifoaming agent, levelling agent, antioxidant, filler is added in agent, continues to stir 30min, adds pigment, continue to stir
30min is mixed to get the coil coating.
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| CN109627903A (en) * | 2018-10-30 | 2019-04-16 | 连云港泽阳装饰材料有限公司 | A kind of printing iron flask transparent yellow polyester baking vanish |
| CN110183944A (en) * | 2019-05-14 | 2019-08-30 | 佛山市沃特布恩新型材料有限公司 | A kind of coil coating and preparation method thereof of aluminium sheet roller coating |
| CN110982431A (en) * | 2019-12-18 | 2020-04-10 | 广东鸿业家具制造有限公司 | Preparation method of odorless environment-friendly paint |
| CN114874687A (en) * | 2022-05-31 | 2022-08-09 | 深圳市深赛尔股份有限公司 | Fireproof and heat-insulating water-based polyester system coil steel coating and preparation method thereof |
| CN115449274A (en) * | 2022-10-27 | 2022-12-09 | 江苏扬瑞新材料有限公司 | Water-based coil coating and preparation method thereof |
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| CN110982431A (en) * | 2019-12-18 | 2020-04-10 | 广东鸿业家具制造有限公司 | Preparation method of odorless environment-friendly paint |
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|---|---|
| CN108441090B (en) | 2020-06-30 |
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