CN108219658A - A kind of corrosion-resistant polyurethane coating and preparation method thereof - Google Patents
A kind of corrosion-resistant polyurethane coating and preparation method thereof Download PDFInfo
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- CN108219658A CN108219658A CN201711453318.5A CN201711453318A CN108219658A CN 108219658 A CN108219658 A CN 108219658A CN 201711453318 A CN201711453318 A CN 201711453318A CN 108219658 A CN108219658 A CN 108219658A
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
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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
-
- 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
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of corrosion-resistant polyurethane coatings, it is made of the component A of 75% weight meter and the B component of 25% weight meter, wherein component A includes 60 70 parts of aqueous polyether resins, 0.1 0.5 parts of aluminium oxide, 13 parts of dispersants, 0.1 0.5 parts of levelling agents, 0.1 0.5 parts of antifoaming agent, 0.5 1.0 parts of thickeners, 10 15 parts of pigment, 10 15 parts of modifying agent and 15 parts of corrosion-resistant agents by weight；The corrosion-resistant agent includes 50 60 parts of nano nickel ferrites, 40 50 parts of tetrafluoroethene, 10 15 parts of carbon nanotubes, 5 10 parts of rare earth elements and 10 20 parts of calcium zinc orthophosphate activated by thallium by weight.Corrosion-resistant polyurethane coating prepared by the present invention, by the rational proportion of each raw material, applicability is wide, good corrosion resistance, has excellent wearability, antistatic property, easy for construction, efficient.
Description
Technical field
The present invention relates to a kind of polyurethane coating, particularly a kind of corrosion-resistant polyurethane coating and preparation method thereof.
Background technology
At present, due to the gradual enhancing increasingly improved with people's health consciousness of environmental regulation, traditional solvent based coating
Unprecedented challenge is received, environmentally friendly aqueous polyurethane coating becomes the development trend of current coating industry.
The application field of aqueous polyurethane coating mainly has：Vehicle paintwork, ship, timber, building application, anticorrosive coating, aircraft, modeling
Material, rubber, leather external coating etc..Aqueous polyurethane coating be using water as main medium, have low VOC content, it is low or
Non-environmental-pollution, it is easy for construction the features such as, be one of main substitute of solvent based coating.Since people are for quality of the life
Pursuit is higher and higher, and new requirement is proposed for the corrosion resistance of aqueous polyurethane coating.
Invention content
There is provided a kind of anticorrosion effect excellent resistance to the purpose of the present invention is to solve above-mentioned the deficiencies in the prior art
Corrode polyurethane coating and preparation method thereof.
To achieve these goals, a kind of corrosion-resistant polyurethane coating designed by the present invention, by the A groups of 75% weight meter
Divide and the B component of 25% weight meter forms, wherein component A includes 60-70 parts of aqueous polyether resins, 0.1-0.5 parts of oxygen by weight
Change aluminium, 1-3 parts of dispersants, 0.1-0.5 parts of levelling agents, 0.1-0.5 parts of antifoaming agent, 0.5-1.0 parts of thickeners, 10-15 parts of pigment,
10-15 parts of modifying agent and 1-5 parts of corrosion-resistant agents, the modifying agent include 50-60 parts of graphenes, 20-30 parts of silicon by weight
Sour magnalium, 5-10 part molybdenum sulfide, 1-3 parts of glass-cermic powders and 2-5 parts of silicon carbide；
The corrosion-resistant agent includes 50-60 parts of nano nickel ferrites, 40-50 parts of tetrafluoroethene, 10-15 parts of carbon nanometers by weight
Pipe, 5-10 parts of rare earth elements and 10-20 parts of calcium zinc orthophosphate activated by thallium；
The B component by weight include 80-90 parts of isocyanate curing agents, 1-5 parts of ketone resins, 2-3 parts of acrylic resins,
0.1-0.5 parts of antioxidants, 1-5 parts of trihydroxylic alcohols, 3-5 parts of coupling agents.
Aqueous polyether resin and aluminium oxide cooperation in the component A can increase the wearability of polyurethane coating, simultaneously
Modifying agent, corrosion-resistant agent are added, then so that polyurethane coating realizes multi-functional characteristic.
Graphene and aluminium-magnesium silicate in the modifying agent play the role of wear-resisting, anlistatig, molybdenum sulfide and glass-cermic powder
It to catalytic action, improves graphene and plays a role, the stable chemical performance of silicon carbide, thermal conductivity factor is high, coefficient of thermal expansion is small, resistance to
Mill performance is good, the similary wearability for increasing coating.
Nano nickel ferrite in the corrosion-resistant agent has the advantages of high temperature resistant, high rigidity, high intensity, thermal stability is good,
Tetrafluoroethene and carbon nanotube have corrosion resistant characteristic, while coordinate with rare earth element and calcium zinc orthophosphate activated by thallium, improve on the whole
The corrosion resistance of the coating.The corrosion-resistant agent may be such that paint film coating is continuously fine and close, and chemical stability is good, and anticorrosion effect is excellent
It is different.
The B component adds in ketone resin, acrylic resin, antioxidant, trihydroxylic alcohol in isocyanate curing agent, so as to
The ability to cure of B component, storage stability are improved, while coordinates and is crosslinked with coupling agent to realize, plays the role of collaboration.It will
The bicomponent polyurethane coating dried coating film rate for preparing is fast after above-mentioned component A and B component mixing, hardness is high.
The dispersant is vinyl bis-stearamides, and the levelling agent is acrylate levelling agent, and the antifoaming agent is
Tributyl phosphate, the thickener are hydroxyethyl cellulose.
The invention also discloses a kind of preparation methods of corrosion-resistant polyurethane coating, include the following steps：
The first step prepares modifying agent, by 50-60 parts of graphenes, 20-30 parts of aluminium-magnesium silicates, 5-10 parts of molybdenum sulfides, 1-3 parts of cast stones
Powder and 2-5 parts of silicon carbide are uniformly mixed, and then the mixture after stirring is put into grinder and is ground to fineness as 30-50 μ
M, it is then that mixture is soluble in water and be heated to 190-220 DEG C, through distillation dehydration after reaction 1-2 h, reactant is cooled to
Room temperature is up to modifying agent；
Second step prepares corrosion-resistant agent, by 50-60 parts of nano nickel ferrites, 40-50 parts of tetrafluoroethene, 10-15 parts of carbon nanotubes,
After 5-10 parts of rare earth elements and 10-20 parts of calcium zinc orthophosphate activated by thallium weigh by weight, it is mixed and stirred for uniformly, the raw material that will be mixed
It is put into atmosphere furnace, 3h is kept after then heating to 800-1000 DEG C, be cooled to room temperature taking-up, finally obtained product exists
48h is aged at 50-60 DEG C up to corrosion-resistant agent；
Third walks, and component A is prepared, by 60-70 parts of aqueous polyether resins, 0.1-0.5 parts of aluminium oxide, 1-3 parts of dispersants, 0.1-
0.5 part of levelling agent, 0.1-0.5 parts of antifoaming agent, 0.5-1.0 parts of thickeners, 10-15 parts of pigment, 10-15 parts of modifying agent and 1-5
Part corrosion-resistant agent is mixed 30-40 minutes up to component A；
4th step prepares B component, and 1-5 parts of ketone resins, 2-3 parts of acrylic acid trees are added in 80-90 parts of isocyanate curing agents
Fat, 0.1-0.5 part antioxidant, 1-5 parts of trihydroxylic alcohols, 3-5 parts of coupling agents, up to B component after being stirred；
5th step prepares corrosion-resistant polyurethane coating, after component A is filtered, the then component A based on 75% weight and 25% weight
The B component of meter is mixed up to corrosion-resistant polyurethane coating.
A kind of corrosion-resistant polyurethane coating that the present invention obtains, by the rational proportion of each raw material, applicability is wide, corrosion-resistant
Property it is good, have excellent wearability, antistatic property, it is easy for construction, it is efficient.
Specific embodiment
With reference to embodiment, the present invention is further described.
Embodiment 1：
A kind of corrosion-resistant polyurethane coating provided in this embodiment, by the component A of 75% weight meter and the B component group of 25% weight meter
Into, wherein component A by weight include 60 parts of aqueous polyether resins, 0.1 part of aluminium oxide, 1 part of dispersant, 0.1 part of levelling agent,
0.1 part of antifoaming agent, 0.5 part of thickener, 10 parts of pigment, 10 parts of modifying agent and 1 part of corrosion-resistant agent, the modifying agent is by weight
Including 50 parts of graphenes, 20 parts of aluminium-magnesium silicates, 5 parts of molybdenum sulfides, 1 part of glass-cermic powder and 2 parts of silicon carbide；
The corrosion-resistant agent includes 50 parts of nano nickel ferrites, 40 parts of tetrafluoroethene, 10 parts of carbon nanotubes, 5 parts of rare earths by weight
Element and 10 parts of calcium zinc orthophosphate activated by thallium；
The B component resists by weight including 80 parts of isocyanate curing agents, 1 part of ketone resin, 2 parts of acrylic resins, 0.1 part
Oxidant, 1 part of trihydroxylic alcohol, 3 parts of coupling agents.
The dispersant is vinyl bis-stearamides, and the levelling agent is acrylate levelling agent, and the antifoaming agent is
Tributyl phosphate, the thickener are hydroxyethyl cellulose.
The invention also discloses a kind of preparation methods of corrosion-resistant polyurethane coating, include the following steps：
The first step prepares modifying agent, by 50 parts of graphenes, 20 parts of aluminium-magnesium silicates, 5 parts of molybdenum sulfides, 1 part of glass-cermic powder and 2 parts of carbon
SiClx is uniformly mixed, and it is 30-50 μm that then the mixture after stirring, which is put into grinder, and is ground to fineness, then by mixture
It is soluble in water and be heated to 190-220 DEG C, through distillation dehydration after reaction 1-2 h, reactant is cooled to room temperature up to modifying agent；
Second step prepares corrosion-resistant agent, by 50 parts of nano nickel ferrites, 40 parts of tetrafluoroethene, 10 parts of carbon nanotubes, 5 parts of rare earth members
After element and 10 parts of calcium zinc orthophosphate activated by thallium weigh by weight, it is mixed and stirred for uniformly, the raw material mixed being put into atmosphere furnace, so
After be warming up to 800-1000 DEG C after keep 3h, be cooled to room temperature taking-up, obtained product be finally aged 48h at 50-60 DEG C
Up to corrosion-resistant agent；
Third walks, and component A is prepared, by 60 parts of aqueous polyether resins, 0.1 part of aluminium oxide, 1 part of dispersant, 0.1 part of levelling agent, 0.1
Part antifoaming agent, 0.5 part of thickener, 10 parts of pigment, 10 parts of modifying agent and 1 part of corrosion-resistant agent are mixed 30-40 minutes up to A
Component；
4th step prepares B component, and 1 part of ketone resin, 2 parts of acrylic resins, 0.1 are added in 80 parts of isocyanate curing agents
Part antioxidant, 1 part of trihydroxylic alcohol, 3 parts of coupling agents, up to B component after being stirred；
5th step prepares corrosion-resistant polyurethane coating, after component A is filtered, the then component A based on 75% weight and 25% weight
The B component of meter is mixed up to corrosion-resistant polyurethane coating.
By polyurethane coating corrosion-resistant made from the present embodiment, there is superpower corrosion resistance, resistance to neutral salt spray performance is big
In 2000 hours, acid resistance salt fog was more than 500h, and corrosion class can reach more than 9.8.
Embodiment 2：
A kind of corrosion-resistant polyurethane coating provided in this embodiment matches, area roughly the same with embodiment 1 with preparation method
Other point is that the component A includes 70 parts of aqueous polyether resins, 0.5 part of aluminium oxide, 3 parts of dispersants, 0.5 part of levelling by weight
Agent, 0.5 part of antifoaming agent, 1.0 parts of thickeners, 15 parts of pigment, 15 parts of modifying agent and 5 parts of corrosion-resistant agents.
By polyurethane coating corrosion-resistant made from the present embodiment, there is superpower corrosion resistance, resistance to neutral salt spray performance is big
In 2000 hours, acid resistance salt fog was more than 500h, and corrosion class can reach more than 9.8.
Embodiment 3：
A kind of corrosion-resistant polyurethane coating provided in this embodiment matches, area roughly the same with embodiment 1 with preparation method
Other point be the modifying agent by weight include 60 parts of graphenes, 30 parts of aluminium-magnesium silicates, 10 parts of molybdenum sulfides, 3 parts of glass-cermic powders with
And 5 parts of silicon carbide.
By polyurethane coating corrosion-resistant made from the present embodiment, there is superpower corrosion resistance, resistance to neutral salt spray performance is big
In 2000 hours, acid resistance salt fog was more than 500h, and corrosion class can reach more than 9.8.
Embodiment 4：
A kind of corrosion-resistant polyurethane coating provided in this embodiment matches, area roughly the same with embodiment 1 with preparation method
Other point be the corrosion-resistant agent by weight include 60 parts of nano nickel ferrites, 50 parts of tetrafluoroethene, 15 parts of carbon nanotubes, 10 parts
Rare earth element and 20 parts of calcium zinc orthophosphate activated by thallium.
By polyurethane coating corrosion-resistant made from the present embodiment, there is superpower corrosion resistance, resistance to neutral salt spray performance is big
In 2000 hours, acid resistance salt fog was more than 500h, and corrosion class can reach more than 9.8.
Embodiment 5：
A kind of corrosion-resistant polyurethane coating provided in this embodiment matches, area roughly the same with embodiment 1 with preparation method
Other point is that the B component includes 90 parts of isocyanate curing agents, 5 parts of ketone resins, 3 parts of acrylic resins, 0.5 by weight
Part antioxidant, 5 parts of trihydroxylic alcohols, 5 parts of coupling agents.
By polyurethane coating corrosion-resistant made from the present embodiment, there is superpower corrosion resistance, resistance to neutral salt spray performance is big
In 2000 hours, acid resistance salt fog was more than 500h, and corrosion class can reach more than 9.8.
Claims (3)
1. a kind of corrosion-resistant polyurethane coating, it is characterised in that：By the component A of 75% weight meter and the B component group of 25% weight meter
Into wherein component A includes 60-70 parts of aqueous polyether resins, 0.1-0.5 parts of aluminium oxide, 1-3 parts of dispersants, 0.1- by weight
0.5 part of levelling agent, 0.1-0.5 parts of antifoaming agent, 0.5-1.0 parts of thickeners, 10-15 parts of pigment, 10-15 parts of modifying agent and 1-5
Part corrosion-resistant agent, the modifying agent include by weight 50-60 parts of graphenes, 20-30 parts of aluminium-magnesium silicates, 5-10 parts of molybdenum sulfides,
1-3 parts of glass-cermic powders and 2-5 parts of silicon carbide；
The corrosion-resistant agent includes 50-60 parts of nano nickel ferrites, 40-50 parts of tetrafluoroethene, 10-15 parts of carbon nanometers by weight
Pipe, 5-10 parts of rare earth elements and 10-20 parts of calcium zinc orthophosphate activated by thallium；
The B component by weight include 80-90 parts of isocyanate curing agents, 1-5 parts of ketone resins, 2-3 parts of acrylic resins,
0.1-0.5 parts of antioxidants, 1-5 parts of trihydroxylic alcohols, 3-5 parts of coupling agents.
2. polyurethane according to claim 1, it is characterised in that：The dispersant is vinyl bis-stearamides, described
Levelling agent is acrylate levelling agent, and the antifoaming agent is tributyl phosphate, and the thickener is hydroxyethyl cellulose.
3. the preparation method of a kind of corrosion-resistant polyurethane coating as described in claim 1-2, which is characterized in that including following step
Suddenly：
The first step prepares modifying agent, by 50-60 parts of graphenes, 20-30 parts of aluminium-magnesium silicates, 5-10 parts of molybdenum sulfides, 1-3 parts of cast stones
Powder and 2-5 parts of silicon carbide are uniformly mixed, and then the mixture after stirring is put into grinder and is ground to fineness as 30-50 μ
M, it is then that mixture is soluble in water and be heated to 190-220 DEG C, through distillation dehydration after reaction 1-2 h, reactant is cooled to
Room temperature is up to modifying agent；
Second step prepares corrosion-resistant agent, by 50-60 parts of nano nickel ferrites, 40-50 parts of tetrafluoroethene, 10-15 parts of carbon nanotubes,
After 5-10 parts of rare earth elements and 10-20 parts of calcium zinc orthophosphate activated by thallium weigh by weight, it is mixed and stirred for uniformly, the raw material that will be mixed
It is put into atmosphere furnace, 3h is kept after then heating to 800-1000 DEG C, be cooled to room temperature taking-up, finally obtained product exists
48h is aged at 50-60 DEG C up to corrosion-resistant agent；
Third walks, and component A is prepared, by 60-70 parts of aqueous polyether resins, 0.1-0.5 parts of aluminium oxide, 1-3 parts of dispersants, 0.1-
0.5 part of levelling agent, 0.1-0.5 parts of antifoaming agent, 0.5-1.0 parts of thickeners, 10-15 parts of pigment, 10-15 parts of modifying agent and 1-5
Part corrosion-resistant agent is mixed 30-40 minutes up to component A；
4th step prepares B component, and 1-5 parts of ketone resins, 2-3 parts of acrylic acid trees are added in 80-90 parts of isocyanate curing agents
Fat, 0.1-0.5 part antioxidant, 1-5 parts of trihydroxylic alcohols, 3-5 parts of coupling agents, up to B component after being stirred；
5th step prepares corrosion-resistant polyurethane coating, after component A is filtered, the then component A based on 75% weight and 25% weight
The B component of meter is mixed up to corrosion-resistant polyurethane coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711453318.5A CN108219658A (en) | 2017-12-28 | 2017-12-28 | A kind of corrosion-resistant polyurethane coating and preparation method thereof |
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| CN201711453318.5A CN108219658A (en) | 2017-12-28 | 2017-12-28 | A kind of corrosion-resistant polyurethane coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279837A (en) * | 2018-09-19 | 2019-01-29 | 山东地平线建筑节能科技有限公司 | A kind of fire-proof and damp-proof sound insulation internal partition wall |
| WO2024094900A1 (en) | 2022-11-04 | 2024-05-10 | Sika Technology Ag | Anti-static coating system |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279837A (en) * | 2018-09-19 | 2019-01-29 | 山东地平线建筑节能科技有限公司 | A kind of fire-proof and damp-proof sound insulation internal partition wall |
| WO2024094900A1 (en) | 2022-11-04 | 2024-05-10 | Sika Technology Ag | Anti-static coating system |
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