CN111349389A - Solvent-free single-component finish paint for plastic track and preparation process thereof - Google Patents
Solvent-free single-component finish paint for plastic track and preparation process thereof Download PDFInfo
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- CN111349389A CN111349389A CN202010157955.3A CN202010157955A CN111349389A CN 111349389 A CN111349389 A CN 111349389A CN 202010157955 A CN202010157955 A CN 202010157955A CN 111349389 A CN111349389 A CN 111349389A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003
- E01C13/065—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003 at least one in situ layer consisting of or including bitumen, rubber or plastics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to a solvent-free single-component finish paint for a plastic track and a preparation process thereof, relating to the technical field of plastic tracks and comprising the following raw materials in parts by weight: 30-50 parts of waterborne polyurethane acrylate, 18-22 parts of reactive diluent, 6-10 parts of antifreeze agent, 10-14 parts of harmful substance adsorbent, 4-8 parts of flow promoter, 0.6-1 part of photoinitiator, 3-7 parts of pigment, 1-3 parts of castor oil, 1-3 parts of anionic surfactant and 1-3 parts of nonionic surfactant. By adding the antifreeze agent, the snow water seeping into the plastic particles of the runway is prevented from being frozen again, so that the runway is prevented from being frozen and cracked, and the service life of the plastic runway is prolonged.
Description
Technical Field
The invention relates to the technical field of plastic runways, in particular to a solvent-free single-component finish paint for a plastic runway and a preparation process thereof.
Background
In the prior art, when a plastic track is prepared, a layer of finish paint is coated on the track, EPDM red particles are sprayed on the track, and then the plastic track is prepared by flattening the plastic track by a tool so that the plastic particles are adhered to the track.
However, in northern China, rainy and snowy days are more, when the sun comes out in the daytime, the outdoor temperature rises, the accumulated snow on the outdoor plastic track can be melted into water, and the melted snow water can downwards penetrate into the gap between every two adjacent plastic particles.
When the outdoor temperature drops late, the snow water in the gap between two adjacent plastic particles can be frozen again due to the temperature drop. The frozen snow water in the gap between two adjacent plastic particles can increase in volume, so that the two adjacent plastic particles move away from each other, and the finish paint is stretched, so that the gap between the two adjacent plastic particles is increased.
Although the plastic track has certain elasticity and ductility, when the temperature rises, the frozen snow water in the gap between two adjacent plastic particles can be melted again, and the two adjacent plastic particles can release due to the elastic potential energy of the finish paint, so that the two adjacent plastic particles move close to each other, but the gap between the two adjacent plastic particles is still a little larger than the original gap, and the size of the gap cannot be completely recovered to the original size. After repeated freeze thawing for a long time, the gap between two adjacent plastic particles is larger and larger, and finally, the finish paint is broken due to over-stretching, so that the plastic track is frozen and cracked, and the service life of the plastic track is influenced.
Disclosure of Invention
The invention aims to provide a solvent-free single-component finish paint for a plastic track, which prevents snow water seeping between plastic particles of the track from being frozen again by adding an antifreeze agent, thereby preventing the track from being frozen and cracking and prolonging the service life of the plastic track.
The above object of the present invention is achieved by the following technical solutions:
the solvent-free single-component finish paint for the plastic track comprises the following raw materials in parts by weight: 30-50 parts of waterborne polyurethane acrylate, 18-22 parts of reactive diluent, 6-10 parts of antifreeze agent, 10-14 parts of harmful substance adsorbent, 4-8 parts of flow promoter, 0.6-1 part of photoinitiator, 3-7 parts of pigment, 1-3 parts of castor oil, 1-3 parts of anionic surfactant and 1-3 parts of nonionic surfactant.
By adopting the technical scheme, the water-based acrylic polyurethane is an environment-friendly product taking water as a solvent, and can be crosslinked and solidified into a film under the action of a photoinitiator, so that EPDM red particles are adhered to the runway to form the plastic runway.
The reactive diluent is used for diluting the waterborne acrylic polyurethane, reducing the viscosity of the waterborne acrylic polyurethane, and can be crosslinked and cured with the waterborne acrylic polyurethane under the action of a photoinitiator, so that the crosslinking density of the waterborne acrylic polyurethane is improved, and the strength and the weather resistance of the waterborne acrylic polyurethane after film formation are improved.
The photoinitiator can generate free radicals or cations under the irradiation of ultraviolet rays, so that the aqueous acrylic polyurethane is initiated to be crosslinked and cured to form a solid film.
The castor oil is used as a plasticizer to increase the flexibility of the finishing paint after film forming.
The pigment is used for coloring the coating and endowing the finish paint with certain color.
The antifreeze agent prevents the snow water seeping between the plastic particles of the runway from freezing again, thereby preventing the runway from being frozen and cracked and prolonging the service life of the plastic runway.
The flow promoter is added, so that the fluidity of the finish paint is improved under the condition of not reducing the viscosity of the finish paint, the finish paint is convenient to paint, and the work efficiency and the effect of the finish paint are improved.
The invention is further configured to: the antifreeze agent comprises the following raw materials in percentage by weight: 20-24% of calcined diatomite, 16-20% of sodium acetate trihydrate, 2-4% of disodium hydrogen phosphate dodecahydrate, 20-30% of bisphenol A epoxy acrylate, 0.6-1% of titanate coupling agent, 6-10% of heat conducting material and the balance of deionized water.
By adopting the technical scheme, the sodium acetate trihydrate is an excellent inorganic phase change energy storage material, when the external temperature is lower, the sodium acetate trihydrate can be changed into a solid state from a liquid state, and meanwhile, the heat energy stored in the sodium acetate trihydrate is released to the outside to heat the air inside the runway, so that the temperature in the runway is increased, the snow water seeping between the plastic particles of the runway is prevented from being frozen again, the runway is prevented from being frozen and cracked, and the service life of the plastic runway is prolonged.
The calcined diatomite has a porous structure and high porosity, has the properties of chemical stability, wear resistance, heat resistance, water absorption, permeability and the like, can adsorb the phase-change material, prevents the phase-change material from leaking in the phase-change process, and endows the finish paint with good mechanical properties after film forming.
Disodium hydrogen phosphate dodecahydrate is used as a nucleating agent for reducing the supercooling degree of sodium acetate trihydrate, so that the cooling performance of the sodium acetate trihydrate is improved, and the anti-freezing effect of the antifreeze is improved.
Bisphenol A type epoxy acrylate can react with polar groups such as amino, hydroxyl, carboxyl and the like in the waterborne acrylic polyurethane under the condition of a photoinitiator to form a cross-linked network structure, so that the binding strength of an antifreeze agent and a paint film is improved.
The titanate coupling agent is used for reducing the surface energy of the calcined diatomite, improving the dispersion effect of the calcined diatomite in bisphenol A epoxy acrylate and the dispersion effect of the antifreeze agent in the finish paint, and ensuring that the antifreeze agent can be uniformly distributed in the film layer after the finish paint is formed into a film, thereby prolonging the service life of the plastic track. Avoid the plastic course part to be frost crack because the antifreeze distributes inhomogeneously.
The heat conduction material is used for improving the heat conductivity of the calcined diatomite, is convenient for transmitting the external temperature to the calcined diatomite, and improves the sensitivity and the anti-freezing effect of the anti-freezing agent. Meanwhile, heat released by the sodium acetate trihydrate is quickly transferred to the inside of the runway from the inside of the diatomite to heat air in the runway, the temperature in the runway is improved, snow water seeping between plastic particles of the runway is prevented from being frozen again, the runway is prevented from being frost crack, and the service life of the plastic runway is prolonged.
The invention is further configured to: the heat conduction material comprises the following raw materials in percentage by weight: 30-40% of nano carbon fiber, 30-40% of nano stainless steel fiber and 20-40% of nano basalt fiber.
Through adopting above-mentioned technical scheme, nanometer stainless steel fiber and carbon nanofiber have good heat conductivity, can improve the sensitivity and the freeze proof effect of antifreeze in transmitting the temperature of external world to calcination diatomaceous earth. Simultaneously, can transmit the heat of sodium acetate trihydrate release inside the runway from diatomaceous earth is inside fast for the inside air of heating runway improves the temperature in the runway, prevents that the runway from being frost crack, improves the life-span of plastic runway. And the nano carbon fiber can adsorb harmful substances volatilized from the finish paint, so that the use safety of the plastic track is improved. The nano basalt fiber is a natural fiber, has excellent durability, water resistance and mechanical properties, and has higher breaking elongation and failure strain than carbon fiber, thereby improving the ductility of the finish after film forming and preventing the finish from breaking due to over-stretching.
Through the compound use of a plurality of fibers, the heat conductivity and the ductility of the finish paint are improved, so that the strength of the finish paint is improved. Meanwhile, the nano carbon fiber, the nano basalt fiber and the nano stainless steel fiber can be tightly combined with the matrix, so that a stable three-dimensional net-shaped bearing structure is formed, and the strength of the finish paint is improved.
The invention is further configured to: the flow promoter comprises the following raw materials in percentage by weight: 20-30% of ceramic glass beads, 3-5% of an organic silicon coupling agent, 1-3% of a surface wetting agent, 20-30% of a leveling agent and the balance of deionized water.
By adopting the technical scheme, the ceramic glass beads are generally spherical, so that a ball effect can be formed, the friction force among raw materials in the finish paint is reduced, the fluidity of the finish paint is improved under the condition of not reducing the viscosity of the finish paint, the finish paint is convenient to paint, and the work efficiency of the finish paint and the effect of the finish paint are improved. Meanwhile, the ceramic glass beads can be used as a heat insulation material, heat released by the sodium acetate trihydrate is blocked in the runway, the temperature in the runway is prevented from being dissipated into the air, snow water seeping between plastic particles of the runway is prevented from being frozen again, the runway is prevented from being frost crack, and the service life of the plastic runway is prolonged.
The organic silicon coupling agent can modify the ceramic glass beads, and improve the compatibility of the ceramic glass beads with the waterborne polyurethane acrylate and the bisphenol A type epoxy acrylate, so that the ceramic glass beads can be uniformly dispersed in the finish paint, and the fluidity and the heat preservation effect of the finish paint are improved.
The surface wetting agent can reduce the surface energy of the ceramic glass beads, thereby improving the bonding strength of the ceramic glass beads and the organosilicon coupling agent and improving the modification effect of the ceramic glass beads.
The leveling agent can promote the coating to form a flat, smooth and uniform coating film in the drying film-forming process. Can effectively reduce the surface tension of the finishing liquid and improve the leveling property and uniformity of the finishing liquid. Can improve the permeability of the coating liquid, reduce the possibility of generating spots and stains during the brush coating, increase the coverage and ensure that the formed film is uniform and natural.
The invention is further configured to: the leveling agent comprises the following raw materials in percentage by weight: 40-60% of acrylate leveling agent and 40-60% of nonionic polyurethane leveling agent.
By adopting the technical scheme, the acrylic ester flatting agent is produced by the friction energy chemical industry Co., Ltd, Dongguan city
W220 aqueous leveling agent. The method can increase the flow and leveling property of the surface of the coating and improve the glossiness of the coating. And the surface tension of the coating can be reduced, and the wettability of the coating on a substrate is improved, so that the generation of shrinkage cavities is prevented. Meanwhile, the silicon-free defoaming agent can help to defoam and defoam, and does not influence the interlayer adhesion because of no organic silicon. The nonionic polyurethane flatting agent is produced by molar energy chemical industry Co., Ltd, Dongguan city
W240 aqueous leveling agent. It can increase the flow and leveling property of the paint, the performance is not influenced by the PH value, and it can also help the wetting and dispersing of the pigment and filler. Through the compound use of two flatting agents, the synergistic effect is generatedAnd the fluidity of the paint film is further improved.
The invention is further configured to: the harmful substance adsorbent comprises the following raw materials in percentage by weight: 20-30% of fluorocarbon emulsion, 16-20% of organic montmorillonite, 0.6-1% of coupling agent, 10-14% of nano zinc oxide, 6-10% of nano titanium dioxide, 1-3% of cationic surfactant and the balance of deionized water.
By adopting the technical scheme, the fluorocarbon emulsion is formed by polymerizing organic fluorine, (methyl) acrylate, a special wet adhesion monomer, a reactive emulsifier and the like by using an advanced seed process and a core-shell technology, has good water resistance, weather resistance, stain resistance, acid and alkali resistance and salt mist resistance, and is not easy to yellow. Meanwhile, the paint film is bright and plump and has good fluidity. The fluorocarbon emulsion is a cationic fluorocarbon emulsion with the model of HT-610FY produced by Beijing Runbo Hengtong technology Limited.
The nano zinc oxide and the nano titanium dioxide can utilize natural light to catalyze and decompose bacteria and pollutants, and the bacteria and the pollutants can generate electron-hole pairs under the irradiation of light. The electrons and the holes react with oxygen in water and water or oxygen in air on the surfaces of the two to generate OH hydroxyl radicals and superoxide anion radicals O2 with high oxidizability, and the OH hydroxyl radicals and the superoxide anion radicals can react with CO, SO2, NOx, H2S, NH3, formaldehyde, acetaldehyde, benzene and homologues thereof, Total Volatile Organic Compounds (TVOC) or a plurality of toxic organic matters which are difficult to be biodegraded by water to generate inorganic matters such as carbon dioxide, water and the like and other non-toxic substances.
The montmorillonite can be used as adsorbent to adsorb harmful substances volatilized from the plastic track in vivo. At the moment, the nano zinc oxide and the nano titanium dioxide on the surface and inside of the montmorillonite can catalyze and decompose harmful substances, so that the harmful substances are prevented from volatilizing in the air, and the use safety of people is prevented from being influenced.
Meanwhile, the nano zinc oxide is a metal ion dissolution type antibacterial agent and still has antibacterial performance under the condition of no illumination. Through the compound use of the nano zinc oxide and the nano titanium dioxide, the bacteria can be decomposed under the action of light or no light, and the decomposition efficiency of the inorganic filler is improved. And the nano zinc oxide and the nano titanium dioxide can also be used as anti-aging agents to prevent the plastic track from aging and prolong the service life of the plastic track.
The organic montmorillonite has organic groups, so that the dispersibility of the filler in the finish paint can be improved, and the compatibility between organic and inorganic phases is enhanced. And because of the special structure of the montmorillonite, the montmorillonite has larger specific surface area and can adsorb more nano zinc oxide and nano titanium dioxide.
The coupling agent can improve the adhesion effect and the adhesion strength of the nano zinc oxide and the nano titanium dioxide on the organic montmorillonite, and improve the dispersion effect and the bonding strength of the organic montmorillonite in the finish paint.
The cationic surfactant can improve the dispersibility of the raw materials in the emulsion, and further improve the film forming effect of the harmful substance adsorbent. Meanwhile, the cationic surfactant can react with the anionic surfactant, so that the binding strength of the harmful substance adsorbent on the runway is improved.
The second aim of the invention is realized by the following technical scheme:
a preparation process of a solvent-free single-component finish paint for a plastic track comprises the following preparation processes:
1) preparing an antifreeze agent, a flow promoter and a harmful substance adsorbent;
2) mixing the antifreeze agent, the flow promoter and the anionic surfactant according to a proportion, and stirring for 20min at a rotating speed of 2000r/min to prepare a mixed solution A;
3) uniformly mixing the pigment and the nonionic surfactant according to a proportion, and soaking for 30min to prepare a mixed solution B;
4) mixing the water-based acrylic polyurethane, the photoinitiator, the reactive diluent, the castor oil, the mixed solution A and the mixed solution B according to a proportion, and stirring for 30min at a rotating speed of 3000r/min to prepare the solvent-free single-component finish paint for the plastic track.
By adopting the technical scheme, the antifreeze agent, the flow promoter and the anionic surfactant are mixed in the step 2, so that a layer of bisphenol A type epoxy acrylate is coated outside the ceramic glass beads, the bonding strength of the ceramic glass beads and the finish paint is improved, and the heat insulation effect of the runway is improved. The anionic surfactant is added to improve the dispersion effect of the antifreeze agent and the flow promoter. And 3, mixing the pigment and the nonionic surfactant to wet the pigment and reduce the surface energy of the pigment, so that the dispersion effect of the pigment in the finish paint is improved. High-speed stirring is adopted to improve the dispersion effect of the raw materials in the solution, so that the film forming effect of the finish paint is improved.
The invention is further configured to: the antifreeze agent comprises the following preparation process:
a. mixing sodium acetate trihydrate, disodium hydrogen phosphate dodecahydrate, a heat conduction material and deionized water according to a certain proportion, and stirring for 20min at the rotating speed of 1000r/min to prepare a mixture A;
b. adding calcined diatomite into the mixture A according to a certain proportion, carrying out ultrasonic treatment for 30min, drying for 24h by using a blast drying oven, then grinding into powder, and sieving by using a 200-mesh sieve to obtain a mixture B;
c. proportionally mixing bisphenol A type epoxy acrylate and titanate coupling agent, and stirring at the rotating speed of 1500r/min for 20min to prepare a mixture C;
d. and mixing the mixture B and the mixture C, and stirring for 20min at the rotating speed of 1000r/min to obtain the antifreeze.
By adopting the technical scheme, in the step b, the adsorption quantity of the sodium acetate trihydrate in the calcined diatomite is improved by adopting ultrasonic treatment, so that the heat which can be emitted by the antifreeze agent in unit time is improved, the temperature inside the runway is further improved, the snow water seeping between the plastic particles of the runway is effectively prevented from being frozen again, and the service life of the plastic runway is prolonged. Meanwhile, as the effective components in the antifreeze agent are increased, the service life of the antifreeze agent can be prolonged, so that the service life of the plastic track is prolonged.
The invention is further configured to: when the finish paint is used for construction, the finish paint is coated on the runway, EPDM red particles are sprayed on the runway, then the runway is flattened by a tool, and finally a harmful substance adsorbent is sprayed on the surface of the runway, and after the runway is completely cured, the plastic runway is prepared.
By adopting the technical scheme, the surface of the prepared runway is sprayed with the layer of the harmful substance adsorbent to form the barrier film on the surface of the runway, so that the harmful gas released by the plastic runway can be blocked on the barrier film, and the harmful substance released by the plastic runway is adsorbed and decomposed, thereby improving the use safety of the plastic runway. Meanwhile, gaps among the plastic particles can be filled, so that snow water is prevented from seeping downwards, and the service life of the runway is prolonged. And it can give the runway surface waterproof layer, improves the hydrophobicity of plastic granule, reduces the snow water volume that stops at the plastic granule surface to when snow water is frozen, the ice-cube can not produce the extrusion to the plastic granule, thereby makes the runway not by the frost crack. The thermal insulation layer can be formed on the surface of the runway to prevent heat inside the runway from dissipating, so that snow water seeping into plastic particles of the runway is effectively prevented from being frozen again, and the service life of the plastic runway is prolonged.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the antifreeze agent is added into the finish paint, so that snow water seeping into plastic particles of the runway is prevented from being frozen again, the runway is prevented from being frozen and cracked, and the service life of the plastic runway is prolonged;
2. the flow promoter is added into the finish paint, so that the fluidity of the finish paint is improved under the condition of not reducing the viscosity of the finish paint, the finish paint is convenient to paint, the work efficiency of the finish paint and the effect of the finish paint are improved, a good heat preservation effect can be given to a runway, and the anti-freezing effect of the anti-freezing agent can be promoted;
3. the harmful substance adsorbent is added into the finish paint to form a layer of protective film which is waterproof, heat-insulating and adsorbs and decomposes harmful substances on the surface of the runway, so that the service life of the plastic runway is prolonged.
Detailed Description
The first embodiment is as follows:
the invention discloses a preparation process of a solvent-free single-component finish paint for a plastic track, which comprises the following preparation processes:
1) preparing an antifreeze agent:
a. mixing 20% of sodium acetate trihydrate, 2% of disodium hydrogen phosphate dodecahydrate, 10% of heat conduction material and 23, 4% of deionized water, and stirring at the rotating speed of 1000r/min for 20min to prepare a mixture A;
the heat conduction material comprises the following raw materials in percentage by weight: 30% of nano carbon fiber, 30% of nano stainless steel fiber and 40% of nano basalt fiber;
b. adding 24% calcined diatomite into the mixture A, performing ultrasonic treatment for 30min, drying for 24h by using a forced air drying oven, grinding into powder, and sieving by using a 200-mesh sieve to obtain a mixture B;
c. mixing 20% of bisphenol A epoxy acrylate and 0.6% of titanate coupling agent, and stirring at the rotating speed of 1500r/min for 20min to prepare a mixture C;
the titanate coupling agent is a titanate coupling agent PN-311W produced by Nanjing Pining coupling agent company Limited;
d. mixing the mixture B and the mixture C, and stirring at the rotating speed of 1000r/min for 20min to prepare an antifreeze agent;
preparing a flow promoter: mixing ceramic glass beads, an organic silicon coupling agent, a surface wetting agent, a leveling agent and deionized water, and stirring at the rotating speed of 1000r/min for 20min to prepare a flow promoter;
the organosilicon coupling agent is silane coupling agent A-172 produced by Nanjing Pining coupling agent Co; the surface wetting agent is a wetting agent PE-100 produced by Guangzhou Hengyu chemical company Limited;
preparing a harmful substance adsorbent: mixing nano zinc oxide, nano titanium dioxide, a coupling agent, a cationic surfactant and deionized water, and stirring at the rotating speed of 2000r/min for 20 min; then adding organic montmorillonite and fluorocarbon emulsion, stirring for 30min at the rotating speed of 1000r/min to prepare harmful substance adsorbent;
the coupling agent is silane coupling agent A-172 produced by Nanjing Pining coupling agent Co; the cationic surfactant is cetyl trimethyl ammonium bromide produced by Shanghai Xuejie chemical company Limited;
2) mixing an antifreeze agent, a flow promoter and an anionic surfactant, and stirring at the rotating speed of 2000r/min for 20min to prepare a mixed solution A;
the anionic surfactant is sodium dodecyl benzene sulfonate anionic surfactant produced by Jinnan Xin Convergence economic and trade company;
3) uniformly mixing the pigment and the nonionic surfactant, and soaking for 30min to obtain a mixed solution B;
the nonionic surfactant is Tween 80 produced by chemical technology of chemical Limited, Jinan Yuan Baolai;
4) mixing the water-based acrylic polyurethane, the photoinitiator, the reactive diluent, the castor oil, the mixed solution A and the mixed solution B, and stirring for 30min at the rotating speed of 3000r/min to prepare the solvent-free single-component finish paint for the plastic track.
When the finish paint is used for construction, the finish paint is coated on the runway, EPDM red particles are sprayed on the runway, then the runway is flattened by a tool, and finally a harmful substance adsorbent is sprayed on the surface of the runway, and after the runway is completely cured, the plastic runway is prepared.
Examples 2-5 differ from example 1 in that the topcoat comprises the following raw materials in parts by weight:
examples 6 to 9 differ from example 1 in that the antifreeze comprises the following raw materials in percent by weight:
examples 10-13 differ from example 1 in that the thermally conductive material comprises the following raw materials in weight percent:
examples 14-17 differ from example 1 in that the flow promoter comprises the following raw materials in weight percent:
examples 18 to 21 differ from example 1 in that the levelling agent comprises the following raw materials in weight percent:
examples 22 to 25 are different from example 1 in that the harmful adsorbent comprises the following raw materials in percentage by weight:
comparative example:
comparative example 1 differs from example 1 in that the topcoat does not contain an anti-freeze agent;
comparative example 2 differs from example 1 in that the topcoat does not contain a flow promoter;
comparative example 3 differs from example 1 in that the flow promoter does not contain ceramic glass beads;
comparative example 4 differs from example 1 in that the topcoat comprises the following preparation process: mixing the waterborne polyurethane acrylate, the active diluent, the anti-freezing agent, the harmful substance adsorbent, the flow promoter, the photoinitiator, the pigment, the castor oil, the anionic surfactant and the nonionic surfactant according to a ratio, and stirring at a rotating speed of 3000r/min for 30min to prepare the solvent-free single-component finish paint for the plastic track;
comparative example 5 is different from example 1 in that the top coat does not contain a harmful substance adsorbent.
Examples 1-3 and comparative examples 1-5 were subjected to the following test methods:
1) and (3) freezing resistance detection: the freeze-thaw resistance of the topcoats in examples 1-3 and comparative examples 1-4 was determined according to the JGT25-1999 architectural coating freeze-thaw cycle resistance assay; comparative example 5: the freeze-thaw resistance of topcoats coated with hazardous adsorbent was determined according to the JGT25-1999 architectural coating freeze-thaw durability cycle test.
2) And (3) detecting the constructability: the finishing paints in examples 1-3 and comparative examples 2-4 were respectively coated on 5 asbestos cement boards of 150mmx200mmx3mm, the coating thickness was 1mm, the time required for finishing coating and the effect of the finishing paint after film formation (film formation effect was judged from the uniformity of film thickness) were calculated, the film formation effect was totally 10 grades, and the more uniform the film thickness, the better the film formation effect.
3) And (3) detecting the bonding strength of the finish: the adhesion strength of the topcoats of examples 1-3, comparative example 1 and comparative example 4 was determined according to JGT 24-2018 synthetic resin emulsion sand wall architectural coating.
As can be seen from the above table, the freeze-thaw resistance data in examples 1 to 3 and comparative examples 1 to 5 can obviously judge that the addition of the antifreeze can endow the finish with good freeze-thaw resistance after film formation, thereby preventing the runway from being frost cracked and prolonging the service life of the plastic runway. The flow promoter and the harmful substance adsorbent are added, and can generate a synergistic effect with the antifreeze agent to further improve the freeze-thaw resistance of the runway, so that the runway is prevented from being frost cracked, and the service life of the plastic runway is prolonged.
The data of the coating time and the film forming effect in the examples 1 to 3 and the comparative examples 2 to 4 clearly show that the flow promoter is added, so that the working efficiency of the finish coating and the coating effect of the finish coating are improved. The finish paint prepared by the preparation process has good dispersibility, so that the efficiency and the effect of finish paint coating are improved.
The data of the bonding strength in examples 1-3, comparative example 1 and comparative example 4 can obviously judge that the anti-freezing agent is added, and the preparation process can improve the bonding strength of the finish paint and the runway. The bisphenol A type epoxy acrylate is added, so that the crosslinking density of the finish after film formation can be improved, and the bonding strength of the finish and a runway is improved. By adopting the preparation process, the dispersibility of the bisphenol A epoxy acrylate in the finish paint can be improved, so that the bonding strength of the finish paint and a runway is improved.
4) The detection method comprises the steps of coating the finish paint in the embodiment 1 on two 150mmx200mmx3mm asbestos cement boards, then respectively placing the two asbestos cement boards in airtight boxes with the specification of 500mm × mm × mm, then placing the 2 airtight boxes in the same lightproof room, keeping the room at constant temperature and humidity of 25 ℃ and humidity of 50%, standing the 2 asbestos cement boards in the 2 airtight boxes for 2 hours, detecting the content of formaldehyde through a formaldehyde content detector (Mot500) as a reference value, spraying a harmful substance adsorbent on one of the asbestos cement boards, then respectively placing the asbestos cement boards in the originally placed airtight boxes, opening an ultraviolet lamp to ensure that each airtight box can be surrounded by sufficient light, standing for 5 hours, detecting the concentration of formaldehyde once every 20 minutes in the first 2 hours, and detecting the concentration of formaldehyde once every 3 hours in the next hour3。
From the above table, it can be seen that: by adding the harmful substance adsorbent, harmful gas (formaldehyde) released by the plastic track can be blocked on the blocking film layer, and the harmful substance released by the plastic track is adsorbed and decomposed, so that the use safety of the plastic track is improved. The reason why the formaldehyde content was reduced after 5 hours in comparative example 5 is that calcined diatomaceous earth can adsorb a certain amount of harmful substances.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. A solvent-free single-component finish paint for plastic runways is characterized in that: the material comprises the following raw materials in parts by weight: 30-50 parts of waterborne polyurethane acrylate, 18-22 parts of reactive diluent, 6-10 parts of antifreeze agent, 10-14 parts of harmful substance adsorbent, 4-8 parts of flow promoter, 0.6-1 part of photoinitiator, 3-7 parts of pigment, 1-3 parts of castor oil, 1-3 parts of anionic surfactant and 1-3 parts of nonionic surfactant.
2. The solvent-free single-component finish paint for the plastic track as claimed in claim 1, wherein: the antifreeze agent comprises the following raw materials in percentage by weight: 20-24% of calcined diatomite, 16-20% of sodium acetate trihydrate, 2-4% of disodium hydrogen phosphate dodecahydrate, 20-30% of bisphenol A epoxy acrylate, 0.6-1% of titanate coupling agent, 6-10% of heat conducting material and the balance of deionized water.
3. The solvent-free single-component finish paint for the plastic track as claimed in claim 1, wherein: the heat conduction material comprises the following raw materials in percentage by weight: 30-40% of nano carbon fiber, 30-40% of nano stainless steel fiber and 20-40% of nano basalt fiber.
4. The solvent-free single-component finish paint for the plastic track as claimed in claim 1, wherein: the flow promoter comprises the following raw materials in percentage by weight: 20-30% of ceramic glass beads, 3-5% of an organic silicon coupling agent, 1-3% of a surface wetting agent, 20-30% of a leveling agent and the balance of deionized water.
5. The solvent-free single-component finish paint for the plastic track as claimed in claim 4, wherein: the leveling agent comprises the following raw materials in percentage by weight: 40-60% of acrylate leveling agent and 40-60% of nonionic polyurethane leveling agent.
6. The solvent-free single-component finish paint for the plastic track as claimed in claim 1, wherein: the harmful substance adsorbent comprises the following raw materials in percentage by weight: 20-30% of fluorocarbon emulsion, 16-20% of organic montmorillonite, 0.6-1% of coupling agent, 10-14% of nano zinc oxide, 6-10% of nano titanium dioxide, 1-3% of cationic surfactant and the balance of deionized water.
7. A preparation process of a solvent-free single-component finish paint for a plastic track is characterized by comprising the following steps of: the preparation method comprises the following preparation processes:
1) preparing an antifreeze agent, a flow promoter and a harmful substance adsorbent;
2) mixing the antifreeze agent, the flow promoter and the anionic surfactant according to a proportion, and stirring for 20min at a rotating speed of 2000r/min to prepare a mixed solution A;
3) uniformly mixing the pigment and the nonionic surfactant according to a proportion, and soaking for 30min to prepare a mixed solution B;
4) mixing the water-based acrylic polyurethane, the photoinitiator, the reactive diluent, the castor oil, the mixed solution A and the mixed solution B according to a proportion, and stirring for 30min at a rotating speed of 3000r/min to prepare the solvent-free single-component finish paint for the plastic track.
8. The preparation process of the plastic track solvent-free single-component finish paint according to claim 7, characterized in that: the antifreeze agent comprises the following preparation process:
a. mixing sodium acetate trihydrate, disodium hydrogen phosphate dodecahydrate, a heat conduction material and deionized water according to a certain proportion, and stirring for 20min at the rotating speed of 1000r/min to prepare a mixture A;
b. adding calcined diatomite into the mixture A according to a certain proportion, carrying out ultrasonic treatment for 30min, drying for 24h by using a blast drying oven, then grinding into powder, and sieving by using a 200-mesh sieve to obtain a mixture B;
c. proportionally mixing bisphenol A type epoxy acrylate and titanate coupling agent, and stirring at the rotating speed of 1500r/min for 20min to prepare a mixture C;
d. and mixing the mixture B and the mixture C, and stirring for 20min at the rotating speed of 1000r/min to obtain the antifreeze.
9. The preparation process of the plastic track single-component finish paint according to claim 7, characterized by comprising the following steps: when the finish paint is used for construction, the finish paint is coated on the runway, EPDM red particles are sprayed on the runway, then the runway is flattened by a tool, and finally a harmful substance adsorbent is sprayed on the surface of the runway, and after the runway is completely cured, the plastic runway is prepared.
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