CN112898843A - Water-based paint for renovating color steel tiles and unmanned aerial vehicle construction method thereof - Google Patents
Water-based paint for renovating color steel tiles and unmanned aerial vehicle construction method thereof Download PDFInfo
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- CN112898843A CN112898843A CN202110095132.7A CN202110095132A CN112898843A CN 112898843 A CN112898843 A CN 112898843A CN 202110095132 A CN202110095132 A CN 202110095132A CN 112898843 A CN112898843 A CN 112898843A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000003973 paint Substances 0.000 title claims abstract description 61
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 125
- 238000003756 stirring Methods 0.000 claims abstract description 79
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 23
- 239000000049 pigment Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 11
- 239000004593 Epoxy Substances 0.000 claims abstract description 11
- 150000002148 esters Chemical class 0.000 claims abstract description 11
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- 239000011265 semifinished product Substances 0.000 claims abstract description 10
- 238000009736 wetting Methods 0.000 claims abstract description 10
- 239000000080 wetting agent Substances 0.000 claims abstract description 10
- 239000006184 cosolvent Substances 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000009418 renovation Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
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- 238000002360 preparation method Methods 0.000 claims description 8
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- 239000000654 additive Substances 0.000 claims description 6
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- 238000009472 formulation Methods 0.000 description 3
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- 239000012855 volatile organic compound Substances 0.000 description 3
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical group COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical group [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
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- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical group CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
- B05B15/25—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/10—Epoxy resins modified by unsaturated compounds
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
Abstract
The invention provides water-based paint for color steel tile renovation and an unmanned aerial vehicle construction method thereof, belonging to the technical field of coating and coating construction. Adding water-based acrylate resin and water-based epoxy ester resin at the speed of 400-500 r/min, slowly adding cosolvent and pH regulator to perform physical hybridization reaction, and dispersing for 10-20 min for later use; adding metered deionized water, a water-based wetting dispersant, a water-based base material wetting agent, a water-based defoaming agent and an anti-rust pigment filler into a paint mixing cylinder, continuously dispersing for 10-15 minutes at a high speed, and grinding to a fineness of less than 25 micrometers by a sand mill; and (3) slowly adding the water-based resin hybridized in the B into the ground slurry under the dispersion of 400-500 r/min, uniformly stirring, adding the flash rust resisting auxiliary agent, adjusting the viscosity by using the rheological auxiliary agent, filtering by using a 200-mesh filter screen to obtain a semi-finished product, adding the silane coupling agent when in use, and constructing by using a double unmanned aerial vehicle. The invention has the advantages of good coating performance, high construction efficiency, high unmanned aerial vehicle control precision and the like.
Description
Technical Field
The invention belongs to the technical field of coatings and coating construction, and relates to a water-based paint for color steel tile renovation and an unmanned aerial vehicle construction method thereof.
Background
Along with the rapid development of economy in recent years, steel structure color steel houses are produced and used in large quantities in the field of industrial factory building and civil architecture, so that the using amount of roof color steel tiles is increased year by year. Although the traditional color steel tile has a heat insulation layer, the long-term protection and durability of the color steel tile coating still are the key points of industrial attention. As a building roof tile material, the color steel tiles can cause roof corrosion of the color steel tiles due to wind, sunshine and rain which are generated in the long term.
In recent years, the phenomena of rusting and water leakage of color steel tiles are frequent, the service life of some color steel tiles is reached, the use is seriously influenced, a lot of inconvenience is brought to an owner, and once a roof of a factory building is in a problem, the owner often does not know how to handle the roof! The color steel tile renovating paint is selected to be renovated and maintained in time, so that the service life can be longer. In the prior art, for coating the color steel house roof in the market, a method for removing rust, polishing and brushing paint is generally adopted, and the color steel tile renovation and spraying operation is that the color steel tile is manually and directly stood on the house roof for manual spraying. For the part of the roof made of the color tiles which is especially old and seriously rusted, the worker risk is great, casualty accidents are caused by careless tile surface breakage, the potential safety hazard is high, and moreover, because the traditional paint uses a large amount of organic solvents, the organic volatile matters seriously exceed the standard, the smell is pungent, and serious injuries are caused to the occupational health of constructors and the environmental pollution.
The water-based paint is a subject which is encouraged and assisted by the nation in recent years, a series of atmospheric control schemes are issued and implemented by the nation about the increasingly worsened environmental weather conditions, the VOC emission is strictly limited, the traditional solvent-based paint gradually exits from the historical stage under the double guidance of the constant code adding of the national environmental protection policy and the public opinion of environmental protection, and the water-based paint field tends to be greatly improved. Of course, the water-based outdoor color steel tile is no exception.
The prior art also has the following problems: the silane coupling agent used for improving the adhesive force, hardness, water resistance and weather resistance of a paint film of the paint has poor water resistance, and the performance of the paint film can be weakened in a prepared paint product; furthermore, the existing unmanned aerial vehicle operation mode is to store the coating directly in the storage tank of the unmanned aerial vehicle, along with the construction, the material in the storage tank can be reduced, the load of the unmanned aerial vehicle can be reduced, the control difficulty of the unmanned aerial vehicle can be increased, an operator not only needs to control the unmanned aerial vehicle to change the spraying position, but also needs to continuously adjust the height of the unmanned aerial vehicle, so as to solve the problem that the load of the unmanned aerial vehicle is reduced and the unmanned aerial vehicle is gradually far away from the spraying surface, thus, the spraying distance is fluctuated in the operation process, as is well known, the spraying distance is changed, the size of the spraying surface can be changed, the spraying strength (the strength when the impact occurs between the coating and the attachment surface), the spraying thickness (the material sprayed by a nozzle is in a scattering shape, in the single spraying process, the larger the spraying distance is, the smaller, Uneven thickness of the sprayed surface, reduction in work efficiency, and increase in work difficulty.
The present solution aims to solve the above problems.
Disclosure of Invention
The first purpose of the present invention is to provide a preparation method of water paint for color steel tile renovation, which aims to solve the technical problem of how to improve the adhesion, hardness, water resistance and weather resistance of paint film.
The purpose of the invention can be realized by the following technical scheme: the preparation method of the water-based paint for renovating the color steel tile is characterized by comprising the following steps:
A. the following raw materials were prepared: the paint comprises, by mass, 16-24% of deionized water, 0.2-0.4% of a water-based wetting dispersant, 0.5-1% of a water-based base material wetting agent, 0.1-0.3% of a water-based defoaming agent, 6-20% of an antirust pigment, 8-30% of an extender pigment, 10-30% of a water-based acrylate resin, 10-30% of a water-based epoxy ester resin, 10-30% of a cosolvent, 0.1-0.5% of a pH regulator, 0.5-1% of an anti-flash rust additive and 0.5-2% of a rheological additive;
B. adding water-based acrylate resin and water-based epoxy ester resin at the speed of 400-500 r/min, slowly adding cosolvent and pH regulator to perform physical hybridization reaction, and dispersing for 10-20 min for later use;
C. adding metered deionized water, a water-based wetting dispersant, a water-based base material wetting agent, a water-based defoaming agent and an anti-rust pigment filler into a paint mixing cylinder, continuously dispersing for 10-15 minutes at a high speed, and grinding to a fineness of less than 25 micrometers by a sand mill;
D. slowly adding the water-based resin hybridized in the B into the ground slurry under the dispersion of 400-500 r/min, uniformly stirring, adding the flash rust resisting auxiliary agent, adjusting the viscosity by using the rheological auxiliary agent, and filtering by using a 200-mesh filter screen to obtain a semi-finished product for renovating the color steel tile;
E. and D, before spraying the color steel tile, adding a silane coupling agent with the mass percent of 0.3-1% into the semi-finished product prepared in the step D, and stirring and homogenizing for use.
Preferably, the amount of the water-based acrylate resin is 20%, the amount of the water-based epoxy ester resin is 20%, the amount of the cosolvent is 20%, the amount of the water-based wetting dispersant is 0.3%, the amount of the water-based substrate wetting agent is 0.75%, the amount of the water-based defoamer is 0.2%, the amount of the rheology additive is 1.25%, the amount of the pH regulator is 0.3%, the amount of the flash rust resistant additive is 0.75%, the amount of the rust-proof pigment is 13%, the amount of the extender pigment is 19%, the amount of the deionized water is 20%, and the amount of the silane coupling agent is 0.6%.
The water paint uses the rheological additive, the water wetting dispersant and the water base material wetting agent to effectively reduce the surface tension of the water paint, so that the water paint can be smoothly spread on some low-surface-energy base materials such as glass, steel, plastics and the like, and has a leveling effect, so that a paint film is prevented from cracking or shrinking, and the adhesive force of the paint film can be improved.
The second objective of the present invention is to provide a construction method for renovating color steel tiles by using an unmanned aerial vehicle, which aims to improve the construction quality and enable the auxiliary materials to be added into the main material for construction, in order to solve the above problems in the prior art.
A construction method for renovating color steel tiles by using an unmanned aerial vehicle is characterized in that construction equipment comprises a material-carrying unmanned aerial vehicle and an operation unmanned aerial vehicle, wherein the material-carrying unmanned aerial vehicle carries a main material storage tank and an auxiliary material storage tank, and the operation unmanned aerial vehicle carries a paint spraying pump and a nozzle connected to a material outlet end of the paint spraying pump;
the lower end of the main material storage tank is connected with a stirring and feeding device, the stirring and feeding device comprises a miniature speed reducing motor fixed on the inner wall of the main material storage tank, a first rotating rod is fixedly arranged on an output shaft of the miniature speed reducing motor, a second rotating rod is connected to the first rotating rod in a sliding manner along the axis direction, a permanent magnet is fixedly arranged at the upper end of the second rotating rod, an electromagnetic block corresponding to the permanent magnet is fixedly arranged on the first rotating rod, a reset spring is connected between the first rotating rod and the second rotating rod, a plurality of first stirring sheets are fixedly arranged on the first rotating rod at equal intervals along the axis direction, a plurality of second stirring sheets corresponding to the first stirring sheets one by one are fixedly arranged on the second rotating rod, the first stirring sheets and the second stirring sheets are both in a spiral shape, and the cross sections of the first rotating rod and the second rotating rod are both in a semicircular shape, each first stirring sheet and each second stirring sheet can be spliced to form a continuous thread sheet, a material cylinder wrapping the thread sheet is arranged at the lower end of the main material storage tank, a material temporary storage cylinder is fixedly arranged outside the material cylinder, a secondary homogenization cavity is formed between the material temporary storage cylinder and the material cylinder, and the feeding end of the paint spraying pump is connected with the secondary homogenization cavity through a soft material conveying pipe; a first feeding pipe is connected between the main material storage tank and the upper end of the charging barrel, and a second feeding pipe is connected between the auxiliary material storage tank and the upper end of the charging barrel;
the material-carrying unmanned aerial vehicle automatically follows the operation unmanned aerial vehicle when ensuring that the material conveying pipe is in a loose state;
the construction method comprises the following steps: the semi-finished product of filling in the major ingredient storage tank, the silane coupling agent of filling in the auxiliary material storage tank, control major ingredient storage tank and auxiliary material storage tank carry out the continuous feed to the material jar according to setting for the proportion, control year material unmanned aerial vehicle follows operation unmanned aerial vehicle, and the various steel tile that the spraying was treated to control operation unmanned aerial vehicle carries out the spraying construction.
Further, the duration of the power failure of the electromagnetic block is controlled to adjust the stirring time of the mixed materials in the charging barrel; and controlling the duration of the electrification of the electromagnetic block so as to adjust the material quantity entering the secondary homogenization cavity once.
Furthermore, the inner cavity of the charging barrel is communicated with the secondary homogenization cavity through a pressure limiting valve.
Furthermore, the lower end of the first rotating rod is fixedly provided with a stirring paddle positioned in the secondary homogenization cavity.
For example, the method for tracking a moving target by an unmanned aerial vehicle disclosed in chinese patent No. CN201510830480.9, therefore, in this scheme, the manner in which the material-loaded unmanned aerial vehicle automatically tracks and operates the unmanned aerial vehicle is the existing means, and is not described herein again.
The electromagnetic block is the structure of control current value in order to control its electricity and produce magnetic field intensity, through the intermittent type nature break-make of predetermined program control electromagnetic block electric current, make the relative first bull stick longitudinal movement of second bull stick intermittent type nature, when first stirring piece and second stirring piece just in time dock and form complete screw thread piece, the combination of first stirring piece and second stirring piece, the cooperation feed cylinder forms a screw rod and carries the material mechanism, can extrude the material in the feed cylinder to the secondary homogenization intracavity from top to bottom, the pressure limiting valve receives the extrusion force effect and opens.
When the permanent magnetism piece received the electromagnetic block attraction and pressed close to each other, first stirring piece and second stirring piece were just in time in the state of butt joint completely, first stirring piece and second stirring piece are the state of alternate setting, and end to end linking promptly, the duration of control electromagnetic block circular telegram can control the duration that the screw rod was defeated to expect, at this in-process, the material of being stirred evenly in the feed cylinder is carried to the secondary homogenization intracavity, the material of the interior homogenization intracavity of pump extraction secondary that operation unmanned aerial vehicle carried is under construction to various steel tile.
When the outage of electromagnetism piece, receive reset spring's effect, the second bull stick moves down, relative first bull stick dislocation, under this state, first stirring piece is in the dislocation state with the second stirring piece, can not carry out the transport of great intensity to the material, the existence of voltage limiting valve, the material can not get into the secondary homogenization chamber under the less condition of extrusion pressure, at this moment, first stirring piece and second stirring piece only play the effect of stirring to the material, the outage duration of control electromagnetism piece can adjust the churning time.
The main material storage tank and the auxiliary material storage tank carry out the transport of raw materials to the feed cylinder, in-process at the feed cylinder that the screw thread extruded mixed material, be in negative pressure state in the feed cylinder, under the negative pressure state, the material in main material storage tank and the auxiliary material storage tank is defeated the feed cylinder according to the proportion, all set up the check valve in first conveying pipe and the second conveying pipe, avoid the material in the feed cylinder to reverse get into in main material storage tank and the auxiliary material storage tank, set up flow control valve in first conveying pipe and the second conveying pipe respectively, in order to ensure the transport proportion of main material and auxiliary material.
In the traditional unmanned aerial vehicle operation, the coating and the spray head are directly carried by one unmanned aerial vehicle for operation, the coating can be gradually reduced in the use process, the overall weight of the unmanned aerial vehicle can be changed along with the change of the coating, the difficulty of controlling the operation on the wall surface to be sprayed is increased, and particularly, the coating can stably move under the condition that the distance between the spray head and a spraying and brushing surface is difficult to maintain unchanged, so that the adverse conditions of uneven spraying thickness, missing spraying, mistaken spraying and the like are caused, the coating is wasted, and the flatness of the spraying surface is reduced; to the renovate construction of various steel tile, need control the shower nozzle with the spraying distance of relatively invariable, move at the uniform velocity along the strip groove direction of various steel tile to ensure the spraying quality, traditional unmanned aerial vehicle operation dead weight constantly changes, is difficult to control, and unmanned aerial vehicle's the operation degree of difficulty is very big. In the scheme, two unmanned aerial vehicles, namely a material-carrying unmanned aerial vehicle and an operation unmanned aerial vehicle are adopted, so that the material-carrying unmanned aerial vehicle automatically follows the operation unmanned aerial vehicle under the condition of maintaining the looseness of the conveying pipeline, an operator only needs to control the operation unmanned aerial vehicle according to the spraying requirement, the operation is more light and simple because the self weight of the operation unmanned aerial vehicle is constant, and the operation process is not influenced by the change of the self weight; the coating is supplied in the process of being homogenized continuously, the silane coupling agent serving as the auxiliary material is added into the main material during spraying, the problems that the silane coupling agent is poor in water resistance and can cause deterioration after being existing in an aqueous environment for a long time are solved, and the spraying quality and the spraying effect are good.
In the prior art, a modified silane coupling agent exists, which can improve the water resistance to a certain extent, but the processing technology is complex, and the problem that the performance is gradually weakened in the processing process and the storage process still exists.
In this scheme, even the technology that utilizes even add silane coupling agent makes the water paint that color steel tile renovated the usefulness, simultaneously, in order to improve the ageing of silane coupling agent addition, reduce the unmanned aerial vehicle operation degree of difficulty, improve the construction effect, improve the unmanned aerial vehicle of construction usefulness, especially to color steel tile etc. have a fabulous effect when the spraying face of bar groove structure carries out the operation.
Drawings
FIG. 1 is a flow chart of the preparation of the present aqueous paint.
Fig. 2 is a schematic structural diagram of an unmanned aerial vehicle for spraying water-based paint.
FIG. 3 is a schematic structural view of a main material and auxiliary material stirring and feeding device.
FIG. 4 is a schematic view of the structure of the first stirring blade and the second stirring blade in smooth engagement (in the state of extruding the homogenized mixture).
Fig. 5 is a schematic structural view of the first stirring blade and the second stirring blade in a misaligned state (in a state where the mixture is stirred).
In the figure, 1, a material-carrying unmanned aerial vehicle; 2. operating the unmanned aerial vehicle; 31. a main material storage tank; 32. an auxiliary material storage tank; 33. a paint spray pump; 34. a nozzle; 41. a miniature speed reduction motor; 42. a first rotating lever; 43. a second rotating rod; 44. permanent magnet blocks; 45. an electromagnetic block; 46. a return spring; 47. a first stirring sheet; 48. a second stirring sheet; 51. a charging barrel; 52. a material temporary storage cylinder; 53. a secondary homogenization cavity; 54. a delivery pipe; 55. a first feed pipe; 56. a second feed tube; 57. a pressure limiting valve; 6. and (4) a stirring paddle.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
The water-based paint comprises, by mass, 16-24% of deionized water, 0.2-0.4% of a water-based wetting dispersant, 0.5-1% of a water-based base material wetting agent, 0.1-0.3% of a water-based defoaming agent, 6-20% of an antirust pigment, 8-30% of an extender pigment, 10-30% of a water-based acrylate resin, 10-30% of a water-based epoxy ester resin, 10-30% of a cosolvent, 0.1-0.5% of a pH regulator, 0.5-1% of an anti-flash rust auxiliary agent, 0.5-2% of a rheological auxiliary agent and 0.3-1% of a silane coupling agent.
Wherein the water-based acrylate resin is MAINCOTTETMHG-54C, Dow chemical USA;
the waterborne epoxy ester resin is YG-EP001, Beijing sunshine Vigord environmental protection science and technology Limited;
the cosolvent is dipropylene glycol methyl ether, Dow chemical;
the water-based wetting dispersant is nonionic alkylphenol polyethenoxy ether, courteous (shanghai) chemical ltd;
the aqueous base wetting agent is Wet245, Germany Digao;
the water-based antifoaming agent is BYK034, Bike chemical;
rheological aid is RM8W, dow chemical usa;
the pH regulator is AMP-95, Dow chemical;
the anti-flash rust additive is FA-179, moderate (Shanghai) chemical Co., Ltd
The rust-proof pigment is iron oxide red S110M, Shanghai Yipin pigment Co., Ltd;
the extender pigment is 800 meshes of talcum powder, Guangzhou Liangjia chemical raw material, Inc.;
the silane coupling agent is KH550/KH 560.
The formulations of comparative examples 1, 2 and examples 1-3 are shown in the following table, and the preparation method is shown in fig. 1, specifically as follows;
(1) taking a certain amount of MAINCOTETM HG-54C, YG-EP001 in a container at a low speed of 400-500 r/min, slowly adding dipropylene glycol methyl ether and AMP-95 into the container for carrying out physical hybridization reaction, and stirring and dispersing for 10-20 minutes for later use;
(2) adding metered deionized water, alkylphenol polyoxyethylene, Wet245, BYK034 and S110M into a paint mixing cylinder, continuing dispersing for 10-15 minutes at high speed, and grinding to a fineness of less than 25 micrometers by a sand mill;
(3) slowly adding the water-based resin hybridized in the step (1) into the ground slurry under the condition of dispersion at a low speed of 400-500 revolutions per minute, uniformly stirring, adding FA-179, adjusting the viscosity by using RM8W, and filtering by using a 200-mesh filter screen to obtain a semi-finished product;
(4) and (3) before spraying the color steel tile, adding a silane coupling agent with the mass percent of 0.3-1% into the semi-finished product prepared in the step (3), and spraying and constructing by using an unmanned aerial vehicle after stirring and homogenizing.
The following table is the formulations of comparative examples 1, 2 and examples 1-3;
the performance test methods of comparative examples 1, 2 and examples 1 to 3 are as follows, and the test results are shown in the above table;
(1) content of soluble harmful elements in the water-based paint: measured according to GB/T23991-;
(2) hardness of aqueous paint: measured according to GB/T6739-;
(3) adhesion of water paint: measured according to GB/T5210-;
(4) the content of volatile organic compounds in the water paint is as follows: measured according to GB/T38597-;
(5) heat resistance of Water-based paint: determined according to GB/T1735-;
(6) impact resistance of the water paint: measured according to GB/T1732-93;
the following table shows the results of testing the formulations of comparative examples 1, 2 and examples 1-3;
from the test results, the water-based paint for color steel tile sprayed by the unmanned aerial vehicle is (1) prepared by mixing the water-based acrylate resin MAINCOTTETMHG-54C and the water-based epoxy ester resin YG-EP001, and the performance test indexes such as hardness, impact strength and adhesion are better than those of the water-based paint for color steel tile prepared by singly using the water-based acrylate resin MAINCOTTETMHG-54C or singly using the water-based epoxy ester resin YG-EP 001. (2) The novel water-based paint for the color steel tile prepared by the invention has the advantages of good environmental protection, low VOC content, difficult paint accumulation in spraying, good atomization, good paint film spraying effect, high film strength, and excellent weather resistance and water resistance.
At present there is not had agitating unit unmanned aerial vehicle in storing up the paint can, is unfavorable for spraying of water paint like this, and silane coupling agent is rotten easily, and consequently, this scheme improves it, improves unmanned aerial vehicle after, makes its preparation method with water paint synchronous supporting, maintains the performance of water paint under this formula and the preparation method.
As shown in fig. 2, 3 and 4, the construction equipment comprises a material-carrying unmanned aerial vehicle 1 and an operation unmanned aerial vehicle 2, wherein the material-carrying unmanned aerial vehicle 1 carries a main material storage tank 31 and an auxiliary material storage tank 32, and the operation unmanned aerial vehicle 2 carries a paint spraying pump 33 and a nozzle 34 connected to the discharge end of the paint spraying pump 33;
the lower end of the main material storage tank 31 is connected with a stirring and feeding device, the stirring and feeding device comprises a miniature speed reducing motor 41 fixed on the inner wall of the main material storage tank 31, a first rotating rod 42 is fixedly arranged on an output shaft of the miniature speed reducing motor 41, a second rotating rod 43 is connected on the first rotating rod 42 in a sliding way along the axial direction, a permanent magnet 44 is fixedly arranged at the upper end of the second rotating rod 43, an electromagnetic block 45 corresponding to the permanent magnet 44 is fixedly arranged on the first rotating rod 42, a reset spring 46 is connected between the first rotating rod 42 and the second rotating rod 43, a plurality of first stirring sheets 47 are fixedly arranged on the first rotating rod 42 at equal intervals along the axial direction, a plurality of second stirring sheets 48 corresponding to the first stirring sheets 47 one by one are fixedly arranged on the second rotating rod 43, the first stirring sheets 47 and the second stirring sheets 48 are both spiral, the cross sections of the first rotating rod 42 and the second rotating rod 43 are both semicircular, each first stirring sheet 47 and each second stirring sheet 48 can be spliced to form a continuous thread sheet, the lower end of the main material storage tank 31 is provided with a material cylinder 51 wrapping the thread sheet, a material temporary storage cylinder 52 is fixedly arranged outside the material cylinder 51, a secondary homogenization cavity 53 is formed between the material temporary storage cylinder 52 and the material cylinder 51, and the feeding end of the paint spraying pump 33 is connected with the secondary homogenization cavity 53 through a soft material conveying pipe 54; a first feeding pipe 55 is connected between the main material storage tank 31 and the upper end of the charging barrel 51, and a second feeding pipe 56 is connected between the auxiliary material storage tank 32 and the upper end of the charging barrel 51;
the material-carrying unmanned aerial vehicle 1 automatically follows the operation unmanned aerial vehicle 2 under the condition of ensuring that the material conveying pipe 54 is in a loose state;
the construction method comprises the following steps: the semi-finished product of filling in major ingredient storage tank 31, the silane coupling agent of filling in auxiliary material storage tank 32, control major ingredient storage tank 31 and auxiliary material storage tank 32 carry out the continuous feed to the material jar according to setting for the proportion, control year material unmanned aerial vehicle 1 follows operation unmanned aerial vehicle 2, and control operation unmanned aerial vehicle 2 treats the various steel tile of spraying and carries out the spraying construction.
Controlling the duration of the power failure of the electromagnetic block 45 to adjust the stirring time of the mixed materials in the charging barrel 51; the duration of energization of electromagnetic block 45 is controlled to regulate the amount of material that enters secondary homogenization chamber 53 at a single time.
The inner cavity of the charging barrel 51 is communicated with the secondary homogenization cavity 53 through a pressure limiting valve 57.
The lower end of the first rotating rod 42 is fixedly provided with a stirring paddle 6 positioned in the secondary homogenization chamber 53.
For example, the method for tracking a moving target by an unmanned aerial vehicle disclosed in chinese patent No. CN201510830480.9, therefore, in this scheme, the manner in which the material-loaded unmanned aerial vehicle 1 automatically tracks the operating unmanned aerial vehicle 2 is the existing means, and is not described herein again.
As shown in fig. 4, the electromagnetic block 45 is a structure for controlling the current value to control the strength of the electromagnetic field generated by the electromagnetic block, and the intermittent on/off of the current of the electromagnetic block 45 is controlled by a predetermined program, so that the second rotating rod 43 intermittently moves longitudinally relative to the first rotating rod 42, when the first stirring blade 47 and the second stirring blade 48 are just butted to form a complete screw thread, the combination of the first stirring blade 47 and the second stirring blade 48 forms a screw delivery mechanism in cooperation with the charging barrel 51, so that the material in the charging barrel 51 can be extruded from top to bottom into the secondary homogenization cavity 53, and the pressure limiting valve 57 is opened under the action of extrusion force.
When permanent magnetism piece 44 receives electromagnetic block 45 to attract and hug closely each other, first stirring piece 47 and second stirring piece 48 are just in the state of complete butt joint, first stirring piece 47 and second stirring piece 48 are alternate setting, and the state of end to end, the duration of control electromagnetic block 45 circular telegram can control the defeated material duration of screw rod, at this in-process, the material of being stirred evenly in feed cylinder 51 is carried to in the secondary homogenization chamber 53, the paint spraying pump 33 that operation unmanned aerial vehicle 2 carried draws the material in the secondary homogenization chamber 53 and is under construction to various steel tile.
As shown in fig. 5, when the electromagnetic block 45 is powered off, under the action of the return spring 46, the second rotating rod 43 moves downwards, and is dislocated relative to the first rotating rod 42, in this state, the first stirring plate 47 and the second stirring plate 48 are in a dislocated state, and cannot convey the material with a large intensity, the material cannot enter the secondary homogenization cavity 53 under the condition of a small extrusion pressure due to the existence of the pressure limiting valve 57, at this time, the first stirring plate 47 and the second stirring plate 48 only play a role in stirring the material, and the stirring time can be adjusted by controlling the power-off duration of the electromagnetic block 45.
The main material storage tank 31 and the auxiliary material storage tank 32 carry out the transport of raw materials to feed cylinder 51, be in the screw thread at feed cylinder 51 and extrude the in-process of combined material, be in the negative pressure state in the feed cylinder 51, under the negative pressure state, the material in main material storage tank 31 and the auxiliary material storage tank 32 is defeated the feed cylinder 51 according to the proportion, all set up the check valve in first conveying pipe 55 and the second conveying pipe 56, avoid the reverse main material storage tank 31 and the auxiliary material storage tank 32 of getting into of material in the feed cylinder 51 in, set up flow control valve in first conveying pipe 55 and the second conveying pipe 56 respectively, in order to ensure the transport proportion of main material and auxiliary material.
It can be seen that, when the materials in the material cylinder 51 are in a stirring state, all the materials are stirred, and the materials at the lower end of the material cylinder 51 are extruded out firstly in the process that the materials in the material cylinder 51 are extruded out, so that the stirring effect can be improved, the material extrusion frequency is higher, the new materials can be stirred again with the uniformly stirred materials after entering the material cylinder 51, and the stirring effect cannot be influenced by high-frequency extrusion.
In the traditional unmanned aerial vehicle operation, the coating and the spray head are directly carried by one unmanned aerial vehicle for operation, the coating can be gradually reduced in the use process, the overall weight of the unmanned aerial vehicle can be changed along with the change of the coating, the difficulty of controlling the operation on the wall surface to be sprayed is increased, and particularly, the coating can stably move under the condition that the distance between the spray head and a spraying and brushing surface is difficult to maintain unchanged, so that the adverse conditions of uneven spraying thickness, missing spraying, mistaken spraying and the like are caused, the coating is wasted, and the flatness of the spraying surface is reduced; to the renovate construction of various steel tile, need control the shower nozzle with the spraying distance of relatively invariable, move at the uniform velocity along the strip groove direction of various steel tile to ensure the spraying quality, traditional unmanned aerial vehicle operation dead weight constantly changes, is difficult to control, and unmanned aerial vehicle's the operation degree of difficulty is very big. In the scheme, two unmanned aerial vehicles, namely the material-carrying unmanned aerial vehicle 1 and the operation unmanned aerial vehicle 2, are adopted, the material-carrying unmanned aerial vehicle 1 is enabled to automatically follow the operation unmanned aerial vehicle 2 under the condition that the conveying pipe 54 is kept loose, an operator only needs to control the operation unmanned aerial vehicle 2 according to the spraying requirement, the operation unmanned aerial vehicle 2 is constant in self weight, the operation is more portable and simple, and the operation process is not influenced by self weight change; the coating is supplied in the process of being homogenized continuously, the silane coupling agent serving as the auxiliary material is added into the main material during spraying, the problems that the silane coupling agent is poor in water resistance and can cause deterioration after being existing in an aqueous environment for a long time are solved, and the spraying quality and the spraying effect are good.
In the prior art, a modified silane coupling agent exists, which can improve the water resistance to a certain extent, but the processing technology is complex, and the problem that the performance is gradually weakened in the processing process and the storage process still exists.
In this scheme, even the technology that utilizes even add silane coupling agent makes the water paint that color steel tile renovated the usefulness, simultaneously, in order to improve the ageing of silane coupling agent addition, reduce the unmanned aerial vehicle operation degree of difficulty, improve the construction effect, improve the unmanned aerial vehicle of construction usefulness, especially to color steel tile etc. have a fabulous effect when the spraying face of bar groove structure carries out the operation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (6)
1. The preparation method of the water-based paint for renovating the color steel tile is characterized by comprising the following steps:
A. the following raw materials were prepared: the paint comprises, by mass, 16-24% of deionized water, 0.2-0.4% of a water-based wetting dispersant, 0.5-1% of a water-based base material wetting agent, 0.1-0.3% of a water-based defoaming agent, 6-20% of an antirust pigment, 8-30% of an extender pigment, 10-30% of a water-based acrylate resin, 10-30% of a water-based epoxy ester resin, 10-30% of a cosolvent, 0.1-0.5% of a pH regulator, 0.5-1% of an anti-flash rust additive and 0.5-2% of a rheological additive;
B. adding water-based acrylate resin and water-based epoxy ester resin at the speed of 400-500 r/min, slowly adding cosolvent and pH regulator to perform physical hybridization reaction, and dispersing for 10-20 min for later use;
C. adding metered deionized water, a water-based wetting dispersant, a water-based base material wetting agent, a water-based defoaming agent and an anti-rust pigment filler into a paint mixing cylinder, continuously dispersing for 10-15 minutes at a high speed, and grinding to a fineness of less than 25 micrometers by a sand mill;
D. slowly adding the water-based resin hybridized in the B into the ground slurry under the dispersion of 400-500 r/min, uniformly stirring, adding the flash rust resisting auxiliary agent, adjusting the viscosity by using the rheological auxiliary agent, and filtering by using a 200-mesh filter screen to obtain a semi-finished product for renovating the color steel tile;
E. and D, before spraying the color steel tile, adding a silane coupling agent with the mass percent of 0.3-1% into the semi-finished product prepared in the step D, and stirring and homogenizing for use.
2. The preparation method of the water-based paint for color steel tile renovation according to claim 1, characterized in that the amount of the water-based acrylate resin is 20%, the amount of the water-based epoxy ester resin is 20%, the amount of the cosolvent is 20%, the amount of the water-based wetting dispersant is 0.3%, the amount of the water-based substrate wetting agent is 0.75%, the amount of the water-based antifoaming agent is 0.2%, the amount of the rheological additive is 1.25%, the amount of the pH regulator is 0.3%, the amount of the flash rust resistant additive is 0.75%, the amount of the rust-proof pigment is 13%, the amount of the extender pigment is 19%, the amount of the deionized water is 20%, and the amount of the silane coupling agent is 0.6%.
3. A construction method for renovating color steel tiles by using an unmanned aerial vehicle is characterized in that construction equipment comprises a material-carrying unmanned aerial vehicle (1) and an operation unmanned aerial vehicle (2), wherein the material-carrying unmanned aerial vehicle (1) carries a main material storage tank (31) and an auxiliary material storage tank (32), and the operation unmanned aerial vehicle (2) carries a paint spraying pump (33) and a nozzle (34) connected to the discharge end of the paint spraying pump (33);
the lower end of the main material storage tank (31) is connected with a stirring and feeding device, the stirring and feeding device comprises a miniature speed reducing motor (41) fixed on the inner wall of the main material storage tank (31), an output shaft of the miniature speed reducing motor (41) is fixedly provided with a first rotating rod (42), the first rotating rod (42) is connected with a second rotating rod (43) in a sliding manner along the axis direction, the upper end of the second rotating rod (43) is fixedly provided with a permanent magnet (44), the first rotating rod (42) is fixedly provided with an electromagnetic block (45) corresponding to the permanent magnet (44), a reset spring (46) is connected between the first rotating rod (42) and the second rotating rod (43), the first rotating rod (42) is fixedly provided with a plurality of first stirring sheets (47) at equal intervals along the axis direction, the second rotating rod (43) is fixedly provided with a plurality of second stirring sheets (48) corresponding to the first stirring sheets (47) one by one, the first stirring sheet (47) and the second stirring sheet (48) are both spiral, the cross sections of the first rotating rod (42) and the second rotating rod (43) are both semicircular, each first stirring sheet (47) and each second stirring sheet (48) can be spliced to form continuous threaded sheets, a charging barrel (51) wrapping the threaded sheets is arranged at the lower end of the main material storage tank (31), a material temporary storage barrel (52) is fixedly arranged outside the charging barrel (51), a secondary homogenization cavity (53) is formed between the material temporary storage barrel (52) and the charging barrel (51), and the feeding end of the paint spraying pump (33) is connected with the secondary homogenization cavity (53) through a soft material conveying pipe (54); a first feeding pipe (55) is connected between the main material storage tank (31) and the upper end of the charging barrel (51), and a second feeding pipe (56) is connected between the auxiliary material storage tank (32) and the upper end of the charging barrel (51);
the material-carrying unmanned aerial vehicle (1) automatically follows the operation unmanned aerial vehicle (2) under the condition that the material conveying pipe (54) is in a loose state;
the construction method comprises the following steps: the semi-finished product of claim 1 or 2 is filled in the main material storage tank (31), the silane coupling agent of claim 1 or 2 is filled in the auxiliary material storage tank (32), the main material storage tank (31) and the auxiliary material storage tank (32) are controlled to continuously feed the charging bucket according to a set proportion, the material-carrying unmanned aerial vehicle (1) is controlled to follow the operation unmanned aerial vehicle (2), and the operation unmanned aerial vehicle (2) is controlled to carry out spraying construction on the color steel tiles to be sprayed.
4. The construction method for renovating color steel tiles by using the unmanned aerial vehicle as claimed in claim 3, wherein the duration of the power failure of the electromagnetic block (45) is controlled to adjust the stirring time of the mixed materials in the charging barrel (51); the duration of the energization of the electromagnetic block (45) is controlled to regulate the amount of material that enters the secondary homogenization chamber (53) at a single time.
5. The construction method for renovating color steel tiles by an unmanned aerial vehicle according to claim 3, wherein the inner cavity of the charging barrel (51) is communicated with the secondary homogenization cavity (53) through a pressure limiting valve (57).
6. The construction method for renovating color steel tiles by using an unmanned aerial vehicle according to claim 3, wherein the lower end of the first rotating rod (42) is fixedly provided with a stirring paddle (6) positioned in the secondary homogenization chamber (53).
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| CN110003748A (en) * | 2019-03-26 | 2019-07-12 | 河北晨阳工贸集团有限公司 | A kind of aqueous protective paint and preparation method thereof for container car |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106967343A (en) * | 2017-05-12 | 2017-07-21 | 湖北东盛特种涂料科技有限公司 | A kind of preparation method of aqueous antirust paint for Lincoln weld steel construction |
| CN108624196A (en) * | 2017-11-07 | 2018-10-09 | 株洲飞鹿高新材料技术股份有限公司 | Water-base epoxy shop primer and preparation method thereof |
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