Novel bottom surface unification zinc alkene anticorrosive paint, preparation method and finishing system
Technical field:
The present invention relates to technical field of paint preparation more particularly to a kind of novel bottom surface unification zinc alkene anticorrosive paints, preparation
Method and ready coating system for shelter.
Background technique:
Thermoplastic coating mainly has at present: 1. using chloridized polyolefin as coating obtained by film forming matter etc.;2. with propylene
Acid resin is coating made from film forming matter;3. adding common inert filler to obtain antiseptic property.
The main raw material of the above are chloridized polyolefin or acrylic resin, pigment, inert filler, auxiliary agent, fragrance
Hydrocarbon solvent etc..
And actual conditions are: 1, the antiseptic property of chloridized polyolefin or acrylic resin paint can't reach satisfactory
Antiseptic property;2, the ageing-resistant performance of chloridized polyolefin anticorrosive paint is not able to satisfy the requirement of long-effective corrosion still;3, chlorination is poly-
The solid content of alkene or acrylic resin paint is not high, can not achieve one time thick apply;4, not with the compatibility of fireproof coating
Enough ideals.
Domestic high-speed rail platform shelter has gone through 10 years or so, has arrived the period of maintenance, conventional coating maintaining method,
It is similar to the platform steel structure created: 1. epoxy zinc rich primer or other anti-corrosion primers;2. cloud iron class intermediate coat;3. weather-proof
Finishing coat, such as polyurethane, fluorine carbon.
Or: 1. epoxy zinc rich primer or other anti-corrosion primers;2. cloud iron class intermediate coat;3. fireproof coating;4. weather-proof
Finishing coat, such as polyurethane, fluorine carbon.
The conventional overlay painting interval of the above finishing system, general per pass was at 24 hours or more, if do not needed at 12 meters or more
Coating fireproof coating, then the entire coating period is about no less than 3 days.
If it is required that coating fireproof coating, needs the drying time along with fireproof coating, especially fireproof coating, band
The coating of solvent and water, rate of drying is all very slow, generally will be up to 3 days or more, and once thick cannot apply, then entirely applying series of strata
The period of system needs one week or so.
Since the adhesive force of general fireproof coating is lower (standard requirements are only 0.18MPa), so the attachment of Bulk coat
Power decreases, and reality also largely falls off at fire resistant coating position really.
Practice of construction situation: it in high-speed rail operation, is generally possible to repair the time point of anticorrosive coating, at dead of night extremely often
Morning, total time point are no more than 4 hours, the times such as the measures such as scaffold are torn open if calculating to take, when being actually used in the construction of coating
Between do not exceed 3 hours, here it is so-called " skylight " times.
The anticorrosive paint of epoxies easily generates misuse or mixed, excessive coat type frequently with bi-component at the scene,
The unexpected probability used of coating is set to increase.
In conclusion if the workload of maintenance will be very still using the finishing system and technique of newly-built steel construction
It is huge, it is difficult to realize in reality, even if coating is completed reluctantly, it is also difficult to take coating quality into account.
Summary of the invention:
The purpose of the present invention is in view of the drawbacks of the prior art, provide a kind of novel bottom surface unification zinc alkene anticorrosive paint, system
Preparation Method and ready coating system improve antiseptic property, improve weather proof performance, improve coating mechanical strength, improve
Coating type is reduced, prevents from misapplying to improve coat system construction rate with the compatibility of fire resistant coating, is improved whole
Coating quality extends coating service life.
The present invention is achieved through the following technical solutions:
A kind of novel bottom surface unification zinc alkene anticorrosive paint, is made from the following raw materials in parts by weight: resin mixture liquor 28-32
Part, graphene starch 0.3-0.8 parts, 5-15 parts of ZnOw, 5-15 parts of phosphosilicate, 3-5 parts of dimethylbenzene, coupling agent 5-10
Part, 5-15 parts of dispersing agent, 3-5 parts of titanium dioxide, 0.1-1 parts of polyethylene fibre.
In a preferred embodiment of the present invention, zinc alkene anticorrosive paint is unified by the raw material of following parts by weight in the novel bottom surface
Be made: 30 parts of resin mixture liquor, graphene starch 0.7 part, 12.6 parts of ZnOw, 8.9 parts of phosphosilicate, 4.8 parts of dimethylbenzene,
7.5 parts of coupling agent, 11.3 parts of dispersing agent, 4.2 parts of titanium dioxide, 0.6 part of polyethylene fibre.
Preferably, the coupling agent is titanate coupling agent;The dispersing agent is BYK110 dispersing agent;The phosphorus silicic acid
Salt is SW111 phosphosilicate.
The present invention also provides a kind of preparation methods of above-mentioned novel bottom surface unification zinc alkene anticorrosive paint, include the following steps:
(1) resin mixture liquor, graphene slurry and part dimethylbenzene are placed in kettle and are stirred evenly, slowly put into quantitative titanium white
Powder, composite S W111 phosphosilicate, BYK110 dispersing agent, mixed at high speed;
(2) uniformly the rear stick pin-type sand mill that enters is milled down to fineness less than 20 μm;
(3) be slowly added into good paint vehicle made above ZnOw, remaining dimethylbenzene, titanate coupling agent,
Polyethylene fibre mixes at a slow speed, obtains finished product.
Wherein in order to improve coating property, graphene slurry of the invention is made using special process:
The graphene control number of plies does not surpass 6 layers, and 1 part of graphene is placed in 20 parts of chromatedsolutions by piece diameter in 3um-30um
It impregnates 30 minutes, then is placed in ultrasonic wave and shakes;
Slurries are filtered, are cleaned repeatedly with distilled water again after isolating graphene, spray is sprayed into after test eluting water to neutrality
Mist drying tower, obtains graphene powder;
Graphene powder is placed in dimethylbenzene, 50 DEG C is heated to and is stirred into stable suspension pulpous state, concentration is
5%-8%, cooling are spare.
In order to further increase the performance of coating, resin mixture liquor of the invention is made using special process:
Vinylidene fluoride and propylene dichloride that mass fraction is 10:90 are copolymerized under catalysts conditions, obtain fluorine chlorine alkene
Hydrocarbon copolymer;
Take low viscosity chlorinated rubber 30%-40%, dimethylbenzene 30%-50%, the above copolymer 1 0-15%, high fluorine ether liquid
Body 1-3% is slowly added into low viscosity chlorinated rubber when stirring dimethylbenzene, and high fluorine ether liquid is added after melt into transparent liquid, stirs
It mixes uniformly, then is slowly added into perhaloalkenes copolymer.
The beneficial effect of unification zinc alkene anticorrosive paint in novel bottom surface of the invention is:
1, for the shortcoming of present chloridized polyolefin anti-weather-aging property, resistance to ag(e)ing abilityization is made by fluorine richness
Product improve;
2, by the way that treated graphene is added, greatly improve antiseptic property, while change the mechanical strength of coating
Kind, impact strength improves, and improves the hard brittleness of common chloridized polyolefin;
3, the phosphosilicate special by addition improves coating to the tolerance of steel substrate, can be directly slight
The direct coating in the surface of corrosion;
4, organosilicon material is blended by physics, improves the ageing-resistant performance of coating, the adhesive force of enhancing and steel surface.
The present invention also provides a kind of finishing system, priming paint unifies zinc alkene anticorrosive paint using the novel bottom surface, intermediate
Layer uses non-solvent epoxy graphene fireproof coating, and finishing coat unifies zinc alkene anticorrosive paint using the novel bottom surface.
Preferably, coating thickness of the primer dry films is greater than 100 μm, coating thickness of the middle layer dry film
Greater than 3mm, coating thickness of the finishing coat dry film is greater than 100 μm.
The beneficial effect of finishing system of the invention is:
1, for present two-component coating, it is changed to one pack system, it is easy for construction, it is not necessary to consider further that coating applicable period problem
(pot life);
2, coating takes into account antiseptic property and ageing-resistant performance, reduces coating variety, prevents from misapplying;
3, coating is dry rapidly, and at least two layers of coating is completed in one " skylight ";
4, using non-solvent epoxy fireproof coating, coating adhesion is improved, realizes primary thick painting;
5, coating is all applicable in airless spraying technique, improves efficiency, reduces the investment repeatedly of working measure.
Specific embodiment:
The preferred embodiments of the present invention will be described in detail below, so that advantages and features of the invention can be easier to by this
Field personnel understanding, so as to make a clearer definition of the protection scope of the present invention.
Embodiment 1:
(1) 30 parts of resin mixture liquor, graphene slurry 0.7 and 2.2 parts of dimethylbenzene are placed in kettle and are stirred evenly, slowly put into
4.2 parts of titanium dioxide, 8.9 parts of composite S W111 phosphosilicate, 11.3 parts of BYK110 dispersing agent, mixed at high speed;
(2) uniformly the rear stick pin-type sand mill that enters is milled down to fineness less than 20 μm;
(3) it is even that 12.6 parts of ZnOw, 2.6 parts of dimethylbenzene, titanate esters are slowly added into good paint vehicle made above
Join 7.5 parts of agent, 0.6 part of polyethylene fibre, mixes at a slow speed, obtain finished product.
Its various performance parameters is as follows:
Embodiment 2:
(1) 29.1 parts of resin mixture liquor, graphene slurry 0.5 and 1.5 parts of dimethylbenzene are placed in kettle and are stirred evenly, slowly thrown
Enter 3.7 parts of titanium dioxide, 14.2 parts of composite S W111 phosphosilicate, 13.5 parts of BYK110 dispersing agent, mixed at high speed;
(2) uniformly the rear stick pin-type sand mill that enters is milled down to fineness less than 20 μm;
(3) 7.9 parts of ZnOw, 2.4 parts of dimethylbenzene, titanate esters coupling are slowly added into good paint vehicle made above
8.5 parts of agent, 0.9 part of polyethylene fibre, mix at a slow speed, obtain finished product.
Its various performance parameters is as follows:
Serial number |
Project |
Index |
Unit |
Remarks |
1 |
Fineness |
80 |
μm |
The presence of flake graphite alkene |
2 |
Adhesive force (draws circle) |
1 |
Grade |
|
3 |
Shock resistance |
100 |
Kg.CM |
|
4 |
Flexibility |
1 |
mm |
|
5 |
Sag resistance energy |
200 |
μm |
|
Embodiment 3:
(1) 32 parts of resin mixture liquor, graphene slurry 0.8 and 2 parts of dimethylbenzene are placed in kettle and are stirred evenly, slowly put into titanium
White powder 3,15 parts of composite S W111 phosphosilicate, 15 parts of BYK110 dispersing agent, mixed at high speed;
(2) uniformly the rear stick pin-type sand mill that enters is milled down to fineness less than 20 μm;
(3) 15 parts of ZnOw, 3 parts of dimethylbenzene, titanate coupling agent 5 are slowly added into good paint vehicle made above
Part, 1 part of polyethylene fibre, mix at a slow speed, obtain finished product.
Its various performance parameters is as follows:
Serial number |
Project |
Index |
Unit |
Remarks |
1 |
Fineness |
80 |
μm |
The presence of flake graphite alkene |
2 |
Adhesive force (draws circle) |
1 |
Grade |
|
3 |
Shock resistance |
100 |
Kg.CM |
|
4 |
Flexibility |
1 |
mm |
|
5 |
Sag resistance energy |
250 |
μm |
|
The construction method of the various embodiments described above is as follows:
Material prepares:
1. coating produced above is appropriate;
2. corroding the template several piece of 70mm × 150mm (thickness 1mm) of the thickness no more than 60 μm.
The preparation of coating:
1. pair template oil removal treatment, dries spare.
2. coating is sprayed on no less than 4 pieces of templates with airless sprayer, it is disposed vertically, observes wet-film thickness in 120 μ
Whether there is trickling when m.
3. in 25 DEG C of room temperatures, relative humidity less than 85% under conditions of with the time for referring to that pushing manipulation measurement paint film is done solid work.
4. measuring thickness of dry film with magnetic thickness tester after maintenance 24 hours.
5. carrying out neutral salt spray test after pair template edge sealing.
6. pair template carries out artificial accelerated aging test.
7. pair template carries out the test of drawing adhesive force using the standard method of GB/T5210.
8. continue to observe the compatibility of fireproof coating and coating of the present invention to template coating graphene epoxy fireproof coating,
It has no adverse reaction.
To detecting after above-described embodiment construction, detection data is as follows:
When above-mentioned novel bottom surface unification zinc alkene anticorrosive paint is applied in shelter ready coating system:
Priming paint unifies zinc alkene anticorrosive paint using above-mentioned bottom surface, is single component material, and dilution is adapted to such as acetic acid second
The innoxious solvents such as ester, dimethyl carbonate are also adapted to conventional aromatic hydrocarbon solvent;When using airless spraying, it is not necessary to be added
Diluent.Coating rate of drying (25 DEG C) or 2 hours (5 DEG C) within 1 hour, 100 μm of thickness of dry film of a construction;
Finishing coat also unifies zinc alkene anticorrosive paint using above-mentioned bottom surface, is diluted to construction personnel and thinks suitable viscosity, when making
When with airless spraying, it is not necessary to diluent, 100 μm of thickness of dry film of a construction be added;
Middle layer uses non-solvent epoxy graphene fireproof coating, and a coating thickness is more than 3mm, and drying time 16 hours
(25℃)。
Construction equipment prepares:
The portable airless sprayer of equipment use charging of airless spraying, about 3 kilograms of weight.Primary charging uses 3 hours
More than.Similar to GRACO X Pro airless spraying equipment, which is removed, repacks 2L plastic tank into, tank mouth is by resistance to
Oily pressure-resistant plastic tube is connected to original equipment feed inlet, and batch can is transformed into quickly dismantled, is attached to magnetic force climbing robot back.
It is reequiped with ship high-pressure water jet robot, removes high pressure water jets jet device, retain magnetic force climbing robot part,
The style that the wheel of front two is repacked into adjustable spacing can also be with to adapt to the round steel pipe of various different-diameters
Adapt to plane girder steel.
Coating detection data is as follows:
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.