CN105712674B - A kind of polyurethane cement and its application method that can be applied on plate - Google Patents
A kind of polyurethane cement and its application method that can be applied on plate Download PDFInfo
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- CN105712674B CN105712674B CN201610166170.6A CN201610166170A CN105712674B CN 105712674 B CN105712674 B CN 105712674B CN 201610166170 A CN201610166170 A CN 201610166170A CN 105712674 B CN105712674 B CN 105712674B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/23—Acid resistance, e.g. against acid air or rain
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses the polyurethane cements that one kind can be applied on plate, including component A, component B and component C；Component A includes that mass percent is 70% polyester polyol, 1% levelling agent, 1% water-reducing agent and 28% water；Component B includes that mass percent is 99% polyisocyanate and 1% levelling agent；Component C is concrete mortar；Wherein, the mass ratio of component A, component B and component C are 1: 1.5-3: 12-25.The present invention also provides the application methods of the polyurethane cement, mainly in the external coating of the sheet metal polyurethane cement.The sheet metal for being painted with the polyurethane cement can significantly improve anti-skidding effect, antiskid effect especially under the work condition environment of water, oil stain and other solvents, greatly improve the production security on steel operating platform, and it is high to the anti-corrosion of steel operating platform, rustless property, it is suitable for industrialized production and application.
Description
Technical field
The present invention relates to chemical field, especially a kind of polyurethane cement that can be applied on plate and its application side
Method.
Background technique
The steelframe operating platform generally used in each class factory, engineering construction at present, the metal surface on floor is in reality
In the application of border, it is anti-skidding to solve the problems, such as to generally use checkered steel plate, by brushing antirust paint and to carry out protection and antirust.Decorative pattern
Steel plate refers to the steel plate with decorative pattern convex-concave surface.
Steel operating platform in the above current application, cannot be fully solved in actual use that steel is flat under various working conditions
Platform working surface wear-resisting, anti-corrosion, it is anti-skidding and in terms of comprehensive performance requirement.Various working condition ratios
Such as water, wet environment, acid or alkali environment, solvent environment.The reason is that:
1, checkered steel plate in humidity or has the anti-skidding effect under the environment such as water, solvent, greasy dirt to weaken significantly.
2, rust-proof coating only can solve the problem of rustiness in the wet situation of ordinary tides, anti-under acid or alkali environment and solvent environment
Corruption, anti-rust action effect are limited, and timeliness substantially reduces, and antirust coat failure also will affect the quality of surface layer simultaneously.
3, the mechanical strength of surface layer is low, generally plastics or rubber material or soft coating, makes its service life ten
Point limited, coating will increase use cost, influence working efficiency repeatedly.
Summary of the invention
In order to solve the steel operating platform under dry conditions and hygrometric state condition (there are the work condition environments such as water, solvent, oil stain)
Anti-skidding problem, and solve the protection such as antiseptic and rustproof of steel platform under the work condition environments such as water, soda acid solvent, greasy dirt oil stain and ask
Topic, the present invention propose a kind of polyurethane cement that can be applied on plate, including component A, component B and component C；Component A packet
Including mass percent is 70% polyester polyol, 1% levelling agent, 1% water-reducing agent and 28% water；Component B includes matter
Measuring percentage is 99% polyisocyanate and 1% levelling agent；Component C is concrete mortar；Wherein, component A, component B and
The mass ratio of component C is 1: 1.5-3: 12-25.
Further, the hydroxyl value of polyester polyol be 360~400mgKOH/g, acid value≤3.0mgKOH/g, moisture≤
0.1%, viscosity≤6000mPas.
Further, the molecular weight of polyester polyol is 1900-2100 dalton.Preferably, the molecule of polyester polyol
Amount is 1930-2030 dalton
Further, polyester polyol is that polyalcohol carries out esterification with binary acid or acid anhydrides at 140~230 DEG C and polycondensation is anti-
It should form；The polyalcohol includes ethylene glycol, diglycol, butyl ethyl propylene glycol, trimethylolpropane, Ji Wusi
1 kind in alcohol, 1,4-butanediol or a variety of；The binary acid includes hexanedioic acid, phthalic acid, 1 in halogenated phthalic acid
Kind is a variety of；The acid anhydrides includes phthalate anhydride.
Further, the polyalcohol is ethylene glycol and diglycol；The binary acid is adipic acid；Generating institute
When stating polyester polyol, the molar ratio of the polyalcohol and the binary acid is 1.12~1.28:1, wherein diglycol
Mass percent in the polyalcohol is 85%~98%, uses tetraisopropyl titanate or zinc acetate as catalyst.
Further, polyisocyanate is the CDMDI-100L of Wan Hua company production, NCO content 29%, viscosity 25-
60mPa·s；Concrete mortar includes that mass percent is 70% cement and 30% sand.
The present invention also provides a kind of applications of polyurethane cement that can be applied on plate as described above, it can applies
Cloth is on sheet metal；Sheet metal is steel plate, iron plate or aluminium sheet.Further, the surface of sheet metal has asperities
Road.Preferably checkered steel plate.
The application method for the polyurethane cement that can be applied on plate as described above, comprising the following steps:
Step 1: the surface roughening of sheet metal is cleaned out；
Step 2: in mass ratio 1: 1.5-3: 12-25 weighs component A, component B and component C, it is stirred, primary coat is made
Material, and primer uniformly brushed on the surface through step 1 treated sheet metal, obtain priming coat；
Step 3: prototype gradation sand is uniformly shed, is paved on priming coat, sand throwing layer is obtained；
Step 4: in mass ratio 1: 1.5-3: 12-25 weighs component A, component B and component C, it is stirred, face is made and applies
Material, and by coating materials even application on sand throwing layer, finishing coat is made, by priming coat, sand throwing layer and finishing coat group generating polyurethane
Mortar coating.
Preferably, described Step 2: in mass ratio 1: 1.5-2.5: 12-18 weighs component A, component B and component C, stirring
Primer is made in mixing, and primer is uniformly brushed on the surface through step 1 treated sheet metal, obtains primary coat
Layer.
Preferably, described Step 4: in mass ratio 1: 1.5-2.5: 12-18 weighs component A, component B and component C, stirring
Coating materials are made in mixing, and by coating materials even application on sand throwing layer, finishing coat is made, and are applied by priming coat, sand throwing layer and face
Layer composition polyurethane cement coating.
Preferably, prototype gradation sand particle size matches are as follows:
| Mesh | 60 | 80 | 100 | 140 | 200 | < 200 |
| Screen over-size (%) | 15±2 | 20±2 | 8±2 | 5±2 | 2±1 | 50±2 |
Upper table indicates: the prototype gradation sand is by 15% ± 2% natural grade sand of 60 mesh, 20% ± 2% 80 mesh days
Right grade sand, 8% ± 2% natural grade sand of 100 mesh, 5% ± 2% natural grade sand of 140 mesh, 2% ± 1% 200 mesh
Natural grade sand and 50% ± 2% the natural grade sand composition of 200 mesh of <, above 60 mesh, 80 mesh, 100 mesh, 140 mesh, 200 mesh
It is 100% with the sum of the natural grade sand of 200 mesh of <.200 mesh of < refers to partial size less than 200 purposes, such as 220 in the art
Mesh, 250 mesh etc..
It is highly preferred that prototype gradation sand particle size matches are as follows:
| Mesh | 60 | 80 | 100 | 140 | 200 | < 200 |
| Screen over-size (%) | 15 | 20 | 8 | 5 | 2 | 50 |
Further, the thickness of priming coat is 0.1-0.5mm；The thickness of sand throwing layer is 0.3-1.0mm；The thickness of finishing coat
It is 0.1-0.5mm.
Further, primer is identical with coating materials.
The beneficial effect is that:
1, the present invention can significantly improve current steel operating platform and carry out anti-skidding effect by checkered steel plate merely, especially
It is the antiskid effect of under hygrometric state condition (there are the work condition environments such as water, solvent, oil stain), greatly improving actually makes different
With the production security of steel platform under environment.
2, the present invention can it is long-term, efficiently solve under the work condition environments such as hygrometric state, especially soda acid solvent, greasy dirt oil stain
The protection questions such as anti-corrosion, the antirust of steel platform, by polyurethane cement protective coating provide good physical mechanical property with
Chemical functional greatly prolongs the service life of protective coating.
3, preparation is simple by the present invention, and constructing operation is convenient and efficient, is quite suitable for industrialized production and answers
With.
4, meet the compound indoor decorating standard of volatile organic compounds (VOC), to pollution-free outside construction area.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that polyurethane cement of the invention is applied on sheet metal.
Fig. 2 is a kind of schematic diagram of decorative pattern plate.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.Following embodiments be it is illustrative, be not
It is limited, it cannot be limited the scope of protection of the present invention with following embodiments.Actual conditions are not specified in the following example
Experimental method, usually according to normal condition.Material as used in the following examples etc. unless otherwise specified can be from business way
Diameter obtains.
Polyurethane cement of the invention includes component A, component B and component C.The component A is comprising mass percent
70% polyester polyol, 1% levelling agent, 1% water-reducing agent and 28% water.The polyester polyol be using batch process or
Vacuum dehydration method is made.Polyalcohol carries out esterification with binary acid or acid anhydrides at 140~230 DEG C and polycondensation reaction forms.Esterification and
Polyalcohol in polycondensation reaction can be the dihydric alcohols such as butyl ethyl propylene glycol, ethylene glycol, diglycol, trihydroxy methyl third
Alkane, pentaerythrite, 1,4-butanediol etc.；Binary acid and acid anhydrides can be phthalic acid or phthalate anhydride or its ester, adipic acid,
Halogenated phthalic acid etc..The hydroxyl value of the polyester polyol be 360~400mgKOH/g, acid value≤3.0mgKOH/g, moisture≤
0.1%, viscosity≤6000mPas.
The component B is that 99% polyisocyanate and 1% levelling agent form by mass percent.The isocyanates
CDMDI-100L, NCO content 29%, viscosity 25-60mPas are produced for Wan Hua company.
The component C is concrete mortar, specifically by the cement of mass percent 70% and 30% sand structure
At.
Component A: component B: component C=1: 1.5-3: 12-25 (mass ratio) in polyurethane cement of the invention.Levelling agent
It is common levelling agent and water-reducing agent on the market with water-reducing agent.
Embodiment 1
Component A, component B, component C that mass ratio is 1: 1.5: 12 are uniformly mixed, the polyurethane of embodiment 1 is made
Mortar.Wherein, component A by mass percent be 70% polyester polyol, 1% levelling agent, 1% water-reducing agent and 28%
Water composition.
Polyester polyol in component A the preparation method comprises the following steps: passing through adipic acid (technical grade), ethylene glycol (technical grade) and one
Diglycol ethylene (technical grade) mixing, wherein the mass percent of diglycol accounts for 98% in the alcohol of place, alkyd ingredient
Than (molar ratio) 1.28:1, the insulation reaction 2.0h at 150 DEG C is warming up to 220 DEG C later with the heating rate of 10 DEG C/h, heat preservation
Reaction；Vacuum-pumping when declining when reactor top temperature and no longer ging up, accelerates reaction to carry out, but reaction control temperature 220~
230℃；During the reaction, tetraisopropyl titanate (analysis level) is selected to make catalyst, dosage is reaction system gross mass
0.01~0.05%；It vacuumizes mode in three stages, is gradually increased vacuum degree, the pumpdown time is appropriately extended according to acid value；It protects
Temperature simultaneously samples, and analyzes acid value and hydroxyl value, makes 1900~2100 dalton of range of molecular weight, the polyester polyols needed
Alcohol.The hydroxyl value of the polyester polyol so prepared be 360~400mgKOH/g, acid value≤3.0mgKOH/g, moisture≤0.1%,
Viscosity≤6000mPas.
Component B is that 99% polyisocyanate and 1% levelling agent form by mass percent.The isocyanates is ten thousand China
Company produces CDMDI-100L, NCO content 29%, viscosity 25-60mPas.Advection agent in component A and B is siloxanes,
Water-reducing agent is lignosulfonates.
Component C is made of the sand of the cement of mass percent 70% and 30%.
Embodiment 2
Component A, component B, component C that mass ratio is 1: 2: 16 are uniformly mixed, the polyurethane sand of embodiment 2 is made
Slurry.Component A is that 70% polyester polyol, 1% levelling agent, 1% water-reducing agent and 28% water form by mass percent.
The preparation method of polyester polyol in component A accounts for 90% except the mass percent of diglycol in the alcohol of place, alkyd
Charge ratio (molar ratio) 1.2:1, and use zinc acetate (analysis level) replacement tetraisopropyl titanate (analysis level) as outside catalyst,
Remaining is the same as embodiment 1.The hydroxyl value of the polyester polyol so prepared is 360~400mgKOH/g, acid value≤3.0mgKOH/g, water
Divide≤0.1%, viscosity≤6000mPas.
Component B is that 99% polyisocyanate and 1% levelling agent form by mass percent.The isocyanates is ten thousand China
Company produces CDMDI-100L, NCO content 29%, viscosity 25-60mPas.Advection agent in component A and B is BYK310,
Water-reducing agent is naphthalene sulphonate formaldehyde polymer.
Component C is made of the sand of the cement of mass percent 70% and 30%.
Embodiment 3
Component A, component B, component C that mass ratio is 1: 3: 25 are uniformly mixed, the polyurethane sand of embodiment 3 is made
Slurry.Wherein, component A is 70% polyester polyol, 1% levelling agent, 1% water-reducing agent and 28% water by mass percent
Composition.The preparation method of polyester polyol in component A accounts for 85% in the alcohol of place except the mass percent of diglycol,
Outside alkyd charge ratio (molar ratio) 1.12:1, remaining is the same as embodiment 1.The hydroxyl value of the polyester polyol so prepared be 360~
400mgKOH/g, acid value≤3.0mgKOH/g, moisture≤0.1%, viscosity≤6000mPas.
Component B is that 99% polyisocyanate and 1% levelling agent form by mass percent.The isocyanates is ten thousand China
Company produces CDMDI-100L, NCO content 29%, viscosity 25-60mPas.Advection agent in component A and B is BYK333,
Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid.
Component C is made of the sand of the cement of mass percent 70% and 30%.
Structural schematic diagram such as Fig. 1 after the polyurethane cement coating paper sheet metal that can be applied on plate of the invention
It is shown, including the priming coat 21, sand throwing layer 22 and finishing coat 23 being successively set on 1 surface of sheet metal.One kind of the invention
The application for the polyurethane cement that can be applied on plate is realized by following steps:
(1) it by the surface roughening of sheet metal 1, is then cleaned out with hairbrush, and keeps the surface of sheet metal 1 without dirt
It contaminates, without dust；
(2) weigh component A: component B by mass percentage: component C=1: 1.5-2.5: 12-18 is uniformly mixed,
Primer CK 19 is made, and by its uniformly surface of the sheet metal 1 of brushing after treatment, obtains with a thickness of 0.1-0.5mm
Priming coat 21；
(3) content weighs 0.5-5 kilograms of prototype gradation sand/square meter by mass percentage, it is uniformly shed, is paved the bottom of at
On coating 21, the sand throwing layer 22 with a thickness of 0.3-1.0mm is obtained；
(4) content weighs component A: component B by mass percentage: component C=1: 1.5-2.5: 12-18 is stirred
It is even, coating materials CK 19 is made, and by its even application on sand throwing layer 22, finishing coat 23 is made, obtains 0.3-2.0mm's
Polyurethane cement coating 2.
Above-mentioned steps are 25 DEG C, carry out under condition of normal pressure in temperature, in addition, needing to keep nothing in work progress
Wind, without rain, without sunlight direct projection.
Embodiment 4
The sheet metal for being coated with polyurethane cement of embodiment 4 is prepared by following steps:
(1) it by the surface roughening of iron plate, is then cleaned out with hairbrush, and keeps the surface no-pollution of iron plate, without dust；
(2) on the surface that the polyurethane cement of embodiment 1 is uniformly brushed to iron plate after treatment, obtain with a thickness of
The priming coat of 0.2mm；
(3) 0.5 kilogram/square meter is pressed, prototype gradation sand is uniformly shed, is paved on priming coat, is obtained with a thickness of 0.3mm
Sand throwing layer；
(4) by the polyurethane cement even application of embodiment 1 on sand throwing layer, the finishing coat with a thickness of 0.2mm is made, i.e.,
The iron plate with the polyurethane cement coating with a thickness of 0.7mm is made.
The wherein mechanical fraction of prototype gradation sand are as follows:
| Mesh | 60 | 80 | 100 | 140 | 200 | < 200 |
| Screen over-size (%) | 16 | 22 | 7 | 4 | 3 | 48 |
Embodiment 5
The sheet metal for being coated with polyurethane cement of embodiment 5 is prepared by following steps:
(1) it by the surface roughening of aluminium sheet, is then cleaned out with hairbrush, and keeps the surface no-pollution of aluminium sheet, without dust；
(2) on the surface that the polyurethane cement of embodiment 2 is uniformly brushed to aluminium sheet after treatment, obtain with a thickness of
The priming coat of 0.3mm；
(3) 1 kilogram/square meter is pressed, prototype gradation sand is uniformly shed, is paved on priming coat, is obtained with a thickness of 0.5mm's
Sand throwing layer；
(4) by the polyurethane cement even application of embodiment 2 on sand throwing layer, the finishing coat with a thickness of 0.2mm is made, i.e.,
The aluminium sheet with the polyurethane cement coating with a thickness of 1mm is made.
The wherein mechanical fraction of prototype gradation sand are as follows:
| Mesh | 60 | 80 | 100 | 140 | 200 | < 200 |
| Screen over-size (%) | 13 | 18 | 10 | 7 | 2 | 50 |
Embodiment 6
The sheet metal for being coated with polyurethane cement of embodiment 6 is prepared by following steps:
(1) it by the surface roughening of steel plate, is then cleaned out with hairbrush, and keeps the surface no-pollution of steel plate, without dust；
(2) on the surface that the polyurethane cement of embodiment 3 is uniformly brushed to steel plate after treatment, obtain with a thickness of
The priming coat of 0.5mm；
(3) 5 kilograms/square meter is pressed, prototype gradation sand is uniformly shed, is paved on priming coat, is obtained with a thickness of 1.0mm's
Sand throwing layer；
(4) by the polyurethane cement even application of embodiment 3 on sand throwing layer, the finishing coat with a thickness of 0.3mm is made, i.e.,
The steel plate with the polyurethane cement coating with a thickness of 1.8mm is made.
The wherein mechanical fraction of prototype gradation sand are as follows:
| Mesh | 60 | 80 | 100 | 140 | 200 | < 200 |
| Screen over-size (%) | 15 | 20 | 8 | 5 | 2 | 50 |
Embodiment 7
The sheet metal for being coated with polyurethane cement of embodiment 7 is prepared by following steps:
(1) it by the surface roughening of steel plate, is then cleaned out with hairbrush, and keeps the surface no-pollution of steel plate, without dust；
(2) on the surface that the polyurethane cement CK 19 of Mo Lika company is uniformly brushed to steel plate after treatment, thickness is obtained
Degree is the priming coat of 0.3mm；
(3) 3 kilograms/square meter is pressed, prototype gradation sand is uniformly shed, is paved on priming coat, is obtained with a thickness of 0.8mm's
Sand throwing layer；
(4) it by 19 even application of polyurethane cement CK of Mo Lika company on sand throwing layer, is made with a thickness of 0.3mm's
Finishing coat obtains the steel plate with the polyurethane cement coating with a thickness of 1.4mm.
The wherein mechanical fraction of prototype gradation sand are as follows:
| Mesh | 60 | 80 | 100 | 140 | 200 | < 200 |
| Screen over-size (%) | 15 | 20 | 8 | 5 | 2 | 50 |
Comparative example 1
The steel plate of brushing antirust paint.
By taking ippon AQUECO 1K antirust paint as an example:
Apply program:
1, coating front spring is surface-treated.
2, brush or spray to substrate surface.
Comparative example 2
Checkered steel plate, as shown in Figure 2.
Recruitment evaluation
Detection method used in embodiment 4-7 is aqueous polyurethane floor material professional standard JCT2327-2015 in table 1；Than
Detection method compared with example 1 and 2 is construction steel structure anticorrosive paint professional standard JG/T224-2007.
1 performance of table compares
Note: embodiment 4-7 and comparative example 1 are that corresponding coating is coated on the plate of patterned convex-concave surface,
Decorative pattern is the same as comparative example 2.
As shown in table 1, its maximum temperature that can bear of the sheet metal for being coated with polyurethane cement of embodiment 4-7 and most
Low temperature, service life are above with plate adhesion strength or are equal to comparative example 1 and 2.Therefore polyurethane cement of the invention
Protective coating can provide good physical mechanical strength performance, greatly prolong the service life of protective coating.By primary coat, throw
The construction technologies such as (spreading) is husky, face applies, form that one layer of densification, hard, adhesive force is excellent and toughness in sheet metal surfaces such as steel plates
Splendid protective coating, such polyurethane cement coating layer thickness 0.3-2.0mm, by sufficiently combining organic polyurethane material and nothing
The respective advantage of machine cementitious material, to have high rigidity, high tenacity, strong to metal base plate cohesive force, impact resistance is excellent, can
Fast curing-formed, high temperature can bear 100 DEG C or more, and low temperature can bear subzero 30 DEG C, and service life was up to 5 years or more, very
Be suitably for the sheet metal surfaces such as iron plate, steel plate, aluminium sheet and relevant operation platform provide it is excellent it is dry, hygrometric state is anti-skidding, anti-corrosion, anti-
The functions such as rust.With plate adhesion strength > 1.0MPa.Non-skid property reaches R11-R13 grade (reference standard according to specific needs
DIN51130).Wet ground Friction dates are 50-80 (using the anti-skidding test of TRRL in wet ground using 4S rubber).Anti-corrosion
Erosion performance test methods be standard JIS K5600-6-2-1999: the-the 6 part of coating ordinary test method: paint film chemically-
Section 2: resistance to liquid (water seaoning) carries out test and comparison.See Table 2 for details for anticorrosion data.
2 Corrosion Protection test result of table
As shown in table 2, the anticorrosion data of embodiment 6 and 7 are better than comparative example 1.It is in particular in and (is shown in Table in 2 and indicates " * "
Place): embodiment 6 and 7 is in 10g/m3Acetic acid, 50g/m3Formic acid, 100g/m3Lactic acid, 30g/m3Nitric acid, saturated concentration
Salt and 15g/m3Sodium nitride etching condition under anticorrosion ability it is more preferable than the anticorrosion ability of comparative example 1.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (8)
1. a kind of polyurethane cement applied on plate, which is characterized in that including component A, component B and component C；The component
A includes that mass percent is 70% polyester polyol, 1% levelling agent, 1% water-reducing agent and 28% water；The component B
It is 99% polyisocyanate and 1% levelling agent including mass percent；The component C is concrete mortar；Wherein, described
The mass ratio of component A, the component B and the component C are 1: 1.5-3: 12-25；The plate is sheet metal.
2. the polyurethane cement applied on plate as described in claim 1, which is characterized in that the hydroxyl of the polyester polyol
Value is 360~400mgKOH/g, acid value≤3.0mgKOH/g of the polyester polyol, the moisture of the polyester polyol≤
0.1%, viscosity≤6000mPas of the polyester polyol.
3. the polyurethane cement applied on plate as described in claim 1, which is characterized in that point of the polyester polyol
Son amount is 1900-2100 dalton.
4. the polyurethane cement applied on plate as claimed in claim 2 or claim 3, which is characterized in that the polyester polyol
It is that polyalcohol carries out esterification with binary acid or acid anhydrides at 140~230 DEG C and polycondensation reaction forms；The polyalcohol includes second two
Alcohol, diglycol, butyl ethyl propylene glycol, trimethylolpropane, pentaerythrite, a kind in 1,4-butanediol or more
Kind；The binary acid includes hexanedioic acid, phthalic acid, a kind in halogenated phthalic acid or a variety of；The acid anhydrides includes benzene two
Formic anhydride.
5. the polyurethane cement applied on plate as claimed in claim 4, which is characterized in that the polyalcohol is ethylene glycol
And diglycol；The binary acid is adipic acid；When generating the polyester polyol, the polyalcohol and the binary
Acid molar ratio be 1.12~1.28:1, wherein mass percent of the diglycol in the polyalcohol be 85%~
98%, use tetraisopropyl titanate or zinc acetate as catalyst.
6. the application for the polyurethane cement that one kind is applied on plate as described in claim 1, which is characterized in that can be coated with
On sheet metal；The sheet metal is steel plate, iron plate or aluminium sheet.
7. the application method for the polyurethane cement that one kind is applied on plate as described in claim 1, which is characterized in that including
Following steps:
Step 1: the surface roughening of sheet metal is cleaned out；
Step 2: in mass ratio 1: 1.5-3: 12-25 weighs the component A, the component B and the component C, it is stirred,
Primer is made, and the primer is uniformly brushed on the surface through the step 1 treated sheet metal, obtains on earth
Coating；
Step 3: prototype gradation sand is uniformly shed, is paved on the priming coat, sand throwing layer is obtained；
Step 4: in mass ratio 1: 1.5-3: 12-25 weighs the component A, the component B and the component C, it is stirred,
Coating materials are made, and by the coating materials even application on the sand throwing layer, finishing coat is made, by the priming coat, described
Sand throwing layer and the finishing coat form polyurethane cement coating.
8. the application method for the polyurethane cement applied on plate as claimed in claim 7, which is characterized in that the primary coat
The thickness of layer is 0.1-0.5mm；The thickness of the sand throwing layer is 0.3-1.0mm；The thickness of the finishing coat is 0.1-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610166170.6A CN105712674B (en) | 2016-03-22 | 2016-03-22 | A kind of polyurethane cement and its application method that can be applied on plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101864244A (en) * | 2010-06-29 | 2010-10-20 | 张家港顺昌化工有限公司 | Electron beam curing polyurethane coating for pre-coating coiled material and preparation process thereof |
| CN105036612A (en) * | 2015-07-23 | 2015-11-11 | 南京道润交通科技有限公司 | High-strength super-toughness resin concrete and preparing method thereof |
| CN105089208A (en) * | 2015-09-06 | 2015-11-25 | 辛永刚 | Polyurethane waterproof roll, production equipment and process, composite waterproof layer and practice thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101864244A (en) * | 2010-06-29 | 2010-10-20 | 张家港顺昌化工有限公司 | Electron beam curing polyurethane coating for pre-coating coiled material and preparation process thereof |
| CN105036612A (en) * | 2015-07-23 | 2015-11-11 | 南京道润交通科技有限公司 | High-strength super-toughness resin concrete and preparing method thereof |
| CN105089208A (en) * | 2015-09-06 | 2015-11-25 | 辛永刚 | Polyurethane waterproof roll, production equipment and process, composite waterproof layer and practice thereof |
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