CN117887316B - Antiskid pavement marking paint and preparation method thereof - Google Patents
Antiskid pavement marking paint and preparation method thereof Download PDFInfo
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- CN117887316B CN117887316B CN202410305258.6A CN202410305258A CN117887316B CN 117887316 B CN117887316 B CN 117887316B CN 202410305258 A CN202410305258 A CN 202410305258A CN 117887316 B CN117887316 B CN 117887316B
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- hollow glass
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- glass microspheres
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- 239000003973 paint Substances 0.000 title claims abstract description 91
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000004005 microsphere Substances 0.000 claims abstract description 186
- 239000011521 glass Substances 0.000 claims abstract description 185
- 239000000945 filler Substances 0.000 claims abstract description 98
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 56
- 239000000843 powder Substances 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 32
- 229920005989 resin Polymers 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 32
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- 238000000016 photochemical curing Methods 0.000 claims abstract description 17
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- 239000002245 particle Substances 0.000 claims description 38
- 239000004925 Acrylic resin Substances 0.000 claims description 24
- 229920000178 Acrylic resin Polymers 0.000 claims description 24
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 235000010215 titanium dioxide Nutrition 0.000 claims description 7
- 150000004645 aluminates Chemical group 0.000 claims description 6
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 5
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical group CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 4
- 150000008366 benzophenones Chemical class 0.000 claims description 4
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 3
- 239000012965 benzophenone Substances 0.000 claims description 3
- 238000013007 heat curing Methods 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 description 21
- 230000001965 increasing effect Effects 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 19
- 238000001723 curing Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 239000000126 substance Substances 0.000 description 12
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- OKISUZLXOYGIFP-UHFFFAOYSA-N 4,4'-dichlorobenzophenone Chemical group C1=CC(Cl)=CC=C1C(=O)C1=CC=C(Cl)C=C1 OKISUZLXOYGIFP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000003981 vehicle Substances 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical group CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910002808 Si–O–Si Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
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- 238000005286 illumination Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M methacrylate group Chemical group C(C(=C)C)(=O)[O-] CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 229910002800 Si–O–Al Inorganic materials 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical group [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
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- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- 238000003892 spreading Methods 0.000 description 1
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- 230000003746 surface roughness Effects 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
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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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The invention discloses an anti-skid pavement marking paint and a preparation method thereof, which belong to the technical field of paint preparation and comprise the following components in parts by weight: 40-50 parts of photo-curing resin, 5-10 parts of noctilucent hollow glass microspheres, 15-20 parts of elastic filler I, 15-20 parts of elastic filler II, 0.1-2 parts of pigment and 1-5 parts of photoinitiator, and the preparation method comprises the following steps: mixing a silane coupling agent, ethanol and noctilucent powder, uniformly stirring, spraying on the surface of etched hollow glass microspheres to obtain noctilucent hollow glass microspheres, uniformly mixing a photoinitiator and photo-curing resin, and sequentially adding the noctilucent hollow glass microspheres, elastic filler I, elastic filler II and pigment into the photo-curing resin system to obtain pavement marking paint; according to the invention, the noctilucent hollow glass microspheres, the elastic filler I and the elastic filler II are added into the pavement marking paint, so that the problems of insufficient visibility and insufficient anti-skid performance of the existing pavement marking paint in severe weather and dark light environment are solved.
Description
Technical Field
The invention relates to the technical field of paint preparation, in particular to an anti-slip pavement marking paint and a manufacturing method thereof.
Background
The road marking is indispensable part in road design, through reasonable setting and use the road marking, can improve road traffic capacity, reduce the traffic accident, guarantee traffic safety, improve driving efficiency, traditional road marking is because the different reasons of used coating composition cause the road marking reflection of light not good, some road marking is at night or rain fog weather reflection of light effect is unobvious, this has increased the risk of traffic accident to a certain extent, simultaneously traditional road marking coating solidification back, its surface is comparatively smooth, the car causes the car to skid easily when the road marking is rolled on rain and snow weather and is driven, this likewise has increased the risk of traffic accident.
Based on the above situation, in the prior art, the patent with publication number CN108276899a discloses a multi-component spray marking paint, which comprises three components, an a component and a B component containing paint slurry, and a C component containing modified glass microspheres, wherein the spray marking paint is obtained by uniformly mixing the a component, the B component and the C component when in use.
However, the paint for spraying the marking lines in the above patent still has some defects when in use, firstly, the problem that the visibility of the marking lines on the road is not high at night is still not solved, secondly, the paint for spraying the marking lines improves the compactness, toughness and surface flatness of the marking lines to a certain extent by adding nano silicon dioxide, calcium carbonate and other materials into the components of the paint, but the improvement of the anti-skid performance of the marking lines is not obvious.
Disclosure of Invention
Aiming at the technical defects in the background technology, the invention provides an anti-skid pavement marking paint and a manufacturing method thereof, which solve the technical problems and meet the actual demands, and the specific technical scheme is as follows:
The anti-skid pavement marking paint is characterized by comprising the following components in parts by weight: 40-50 parts of photo-curing resin, 5-10 parts of noctilucent hollow glass microspheres, 15-20 parts of elastic filler I, 15-20 parts of elastic filler II, 0.1-2 parts of pigment and 1-5 parts of photoinitiator, wherein the noctilucent hollow glass microspheres consist of etched hollow glass microspheres and noctilucent coatings on the outer surfaces of the etched hollow glass microspheres, and the density of the elastic filler I is less than that of the elastic filler II;
The particle size of the elastic filler I is 160-180 microns, the particle size of the elastic filler II is 250-300 microns, the elastic filler I is selected from any one material particle of EVA and soft silica gel, and the elastic filler II is selected from any one material particle of TPE and PU;
The light-cured resin is emulsion type acrylic resin with low molecular weight, the molecular weight of the light-cured resin is 5000-7000, the density is 1.1-1.3 g/cm, the density of EVA is 0.90-0.93 g/cm, the density of soft silica gel is 1.02-1.03 g/cm, the density of TPE is 1.3-2.0 g/cm, and the density of PU is 1.25-1.4 g/cm.
Further, the photoinitiator is selected from any one of benzophenone derivatives or benzophenone.
Further, the pigment is selected from any one of titanium white and chrome yellow.
The manufacturing method of the anti-skid pavement marking paint is characterized by comprising the following steps of:
S1, adding hollow glass microspheres into a sodium hydroxide solution, heating and refluxing, and carrying out etching treatment on the surfaces of the hollow glass microspheres to obtain etched hollow glass microspheres;
S2, stirring and dissolving a silane coupling agent in ethanol to obtain an ethanol solution of the silane coupling agent, mixing the ethanol solution of the silane coupling agent with noctilucent powder, and uniformly stirring to obtain a noctilucent solution;
S3, spraying the noctilucent solution on the surface of the etched hollow glass microsphere, and performing heat curing under a high temperature condition to form a noctilucent coating on the surface of the etched hollow glass microsphere to obtain the noctilucent hollow glass microsphere;
S4, adding the photoinitiator into the photo-curing resin, and stirring for 5min at normal temperature to obtain a photo-curing resin system;
s5, sequentially adding the noctilucent hollow glass microspheres, the elastic filler I, the elastic filler II and the pigment into a photo-curing resin system, and stirring for 10min at normal temperature to obtain the pavement marking paint;
In the step S2, the silane coupling agent, the ethanol and the deionized water are uniformly mixed by using a stirrer, the stirring speed is 250-300 rpm, the stirring time is 120-180 min, the ethanol solution of the silane coupling agent is obtained, the noctilucent powder is added into the ethanol solution of the silane coupling agent, the stirring is continued for the second time by using the stirrer, the stirring speed is 450-500 rpm, the stirring time is 200-250 min, the noctilucent powder is uniformly dispersed in the ethanol solution of the silane coupling agent, and the noctilucent solution is obtained, wherein the noctilucent solution comprises the following components in percentage by weight: 5-10% of silane coupling agent, 67-79% of ethanol, 15-20% of deionized water and 1-3% of noctilucent powder, wherein the silane coupling agent is gamma-methacryloxypropyl trimethoxysilane;
In the step S3, the noctilucent solution is sprayed out through an air pressure spraying device and forms mist, then the mist is sprayed on the surfaces of the etched hollow glass microspheres to obtain etched hollow glass microspheres sprayed with the noctilucent solution, the etched hollow glass microspheres sprayed with the noctilucent solution are placed in an environment of 100-150 ℃ and thermally cured for 8-10 hours, so that the silane coupling agent in the noctilucent solution is cured on the surfaces of the etched hollow glass microspheres to form noctilucent coatings, and meanwhile, noctilucent powder is fixed on the surfaces of the etched hollow glass microspheres to obtain the noctilucent hollow glass microspheres.
Further, the particle size of the hollow glass microspheres is 100-150 microns, and the thickness of the spherical wall of the hollow glass microspheres is 10-20 microns.
Further, the noctilucent powder is made of aluminate long afterglow luminescent material with the grain diameter of 5-10 nanometers.
In step S1, the hollow glass microspheres and the sodium hydroxide solution are heated and refluxed by using a flask, the mass ratio of the hollow glass microspheres to the sodium hydroxide solution is 1:400-600, the concentration of the sodium hydroxide solution is 0.3-0.6 mol/L, the reflux temperature is 70-100 ℃, and the reflux time is 60-120 min.
The invention has the beneficial effects that:
The invention fixes the noctilucent powder on the surface of the etched hollow glass microsphere in a high-temperature curing mode by a silane coupling agent and obtains the noctilucent hollow glass microsphere, the noctilucent hollow glass microsphere has a diffuse reflection function on light, so that the pavement marking has good visibility under various light conditions, meanwhile, the stimulus of the reflected light of the noctilucent hollow glass microsphere to eyes of a driver under the direct light environment is reduced, thereby increasing the safety of the pavement marking paint, the noctilucent powder in the noctilucent hollow glass microsphere can absorb light, can self-emit light in the darker light environment, further improves the visibility of the pavement marking, the invention has good layering effect, the noctilucent hollow glass microsphere floats on the surface of the pavement marking paint, can effectively increase the visibility of the pavement marking under various environments, the elastic filler I is suspended in the middle and on the surface of the pavement marking paint, the elastic filler II is sunk at the bottom of the pavement marking paint, the elastic filler I and the elastic filler II have good elasticity and restorability, the elastic filler I floats on the surface of the pavement marking paint, the roughness of the surface of the pavement marking can be effectively increased, the anti-skid performance of the pavement marking is improved, the problem that the friction coefficient of the pavement marking is insufficient at present is solved, the gap and the defect in the pavement marking can be filled by the elastic filler I and the elastic filler II, the overall compactness of the pavement marking is improved, meanwhile, the elastic filler I and the elastic filler II interact with other components in the pavement marking paint, the cohesive force and the tensile strength of the pavement marking are increased, and the toughness and the durability of the pavement marking are improved.
Detailed Description
The following description of the embodiments of the present invention is given in connection with the examples, which are not intended to limit the embodiments of the present invention, and the present invention relates to the relevant essential parts in the art, and should be construed as being known and understood by those skilled in the art.
An anti-skid pavement marking paint comprises the following components in parts by weight: 40-50 parts of photo-curing resin, 5-10 parts of noctilucent hollow glass microspheres, 15-20 parts of elastic filler I, 15-20 parts of elastic filler II, 0.1-2 parts of pigment and 1-5 parts of photoinitiator, wherein the noctilucent hollow glass microspheres consist of etched hollow glass microspheres and noctilucent coatings on the outer surfaces of the etched hollow glass microspheres, and the density of the elastic filler I is smaller than that of the elastic filler II.
The luminous hollow glass microsphere has the dual characteristics of reflecting light and self-luminescence, the hollow glass microsphere in the luminous hollow glass microsphere is a colorless and transparent small sphere, and the surface of the hollow glass microsphere of sodium hydroxide is roughened, so that the luminous hollow glass microsphere has a diffuse reflection function on light, the irritation of the reflected light of the luminous hollow glass microsphere to eyes of a driver in a direct light environment is reduced, the accident risk caused by glare is reduced, meanwhile, the diffuse reflection still ensures the visibility of a pavement marker, and a driver can clearly see the marker under various light conditions, thereby increasing the safety and the visibility of the pavement marker coating.
The surface of the noctilucent hollow glass microsphere is fixed with noctilucent powder through the silane coupling agent, after the noctilucent powder is irradiated by natural light, automobile light and the like, the noctilucent powder stores light energy, and the noctilucent hollow glass microsphere is slowly released in a fluorescence mode at night or in an environment with poor illumination conditions, so that the noctilucent hollow glass microsphere can self-emit light, and the visibility of a road marking in the night or in the environment with poor illumination conditions is improved.
According to the invention, the elastic filler I and the elastic filler II are used as framework materials of the road marking anti-skid paint, the elastic filler I and the elastic filler II have good elasticity and resilience, the elastic filler I and the elastic filler II have different densities, so that the elastic filler I and the elastic filler II have obvious layering phenomenon in the road marking anti-skid paint, the elastic filler I floats on the surface of the road marking paint, the roughness of the surface of the road marking paint can be increased on the basis of the noctilucent hollow glass microspheres, the anti-skid performance of the road marking paint is improved, the elastic resilience of the elastic filler I can enable the contact between a tire and a road to be tighter, the friction force is increased, the anti-skid performance of the road marking paint is further improved, the elastic filler I and the elastic filler II interact with other components in the road marking paint, the cohesion and the tensile strength of the road marking are increased, and the toughness and the durability of the road marking are improved.
As one of the preferred embodiments of the present invention, the photocurable resin is selected from low molecular weight emulsion type acrylic resin, and the photoinitiator is selected from any one of benzophenone derivatives or benzophenone.
The emulsion type light-cured resin is used as the base material of the road marking paint, and the reason is that the light-cured resin is simpler in curing mode, after the light-cured resin is mixed with the photoinitiator, the light-cured resin can be cured only through short-time high-intensity ultraviolet irradiation, and when the light-cured resin is mixed with other fillers, high-temperature heating is not needed, so that the construction difficulty of the road marking paint is reduced to a certain extent.
The light-cured resin is preferably emulsion-type acrylic resin with low molecular weight, the molecular weight is 5000-7000, the acrylic resin has the advantages of high curing speed, excellent film forming performance, wide applicability and the like as the light-cured resin, the acrylic resin can rapidly undergo polymerization reaction under ultraviolet irradiation, so that rapid curing is realized, the excellent film forming performance is the characteristic that a road shows high hardness, good wear resistance and chemical corrosion resistance, meanwhile, the acrylic resin has good adhesiveness, the acrylic resin can be tightly combined with other types of fillers when being mixed with other types of fillers, the low-molecular-weight acrylic resin has lower viscosity, better fluidity and shorter curing time compared with the high-molecular-weight acrylic resin, the lower viscosity is favorable for layering luminescent hollow glass microspheres, the elastic filler I and the elastic filler II in the acrylic resin, the better fluidity is favorable for mixing the acrylic resin with other components, and the shorter curing time is favorable for improving the spraying construction efficiency of the road surface.
The photoinitiator is preferably 4,4 '-dichlorobenzophenone, 4' -dichlorobenzophenone is a derivative of benzophenone, and the 4,4 '-dichlorobenzophenone has the characteristics of good stability, high photosensitivity, high curing speed and the like in the photo-curing application, and simultaneously, tertiary amine substances are not required to be added as auxiliary initiators in the resin curing process, and the construction efficiency of the road marking can be effectively improved through the matched use of acrylic resin and 4,4' -dichlorobenzophenone.
As one of the preferred embodiments of the present invention, the hollow glass microspheres have a particle diameter of 100 to 150 micrometers and a wall thickness of 10 to 20 micrometers.
The luminous hollow glass microspheres have the main functions of reflecting light and emitting fluorescence in the pavement marking paint, so that the visibility of the pavement marking paint is improved, and the luminous hollow glass microspheres have certain anti-skid performance, preferably have the particle size of 150 microns, the thickness of the spherical wall is 10 microns, the particle size of the hollow glass microspheres can directly influence the flowability, the dispersibility and the anti-skid performance of the pavement marking paint, if the particle size is too large, the pavement marking paint can generate precipitation or agglomeration in the painting process, the uniformity and the smoothness of the pavement marking paint are influenced, and if the particle size is too small, the anti-skid performance of the pavement marking is reduced.
The thickness of the spherical wall of the hollow glass microsphere can directly influence the floating performance of the noctilucent hollow glass microsphere, the noctilucent hollow glass microsphere is positioned on the surface layer of the pavement marking paint, if the thickness of the spherical wall of the hollow glass microsphere is too thick, the average density of the noctilucent hollow glass microsphere is larger than the average density of liquid slurry in the pavement marking paint, the noctilucent hollow glass microsphere can sink into the pavement marking, so that the reflection function of the pavement marking disappears and the anti-skid function is weakened, and if the spherical wall of the hollow glass microsphere is too thin, the microsphere can be easily broken or deformed when the pavement marking paint is used, so that the stability and the durability of the pavement marking are influenced; on the other hand, when etching treatment is performed, the hollow glass microspheres may be broken, so that the hollow glass microspheres cannot float on the surface of the pavement marking paint, and the light reflection and anti-skid functions of the paint are disabled.
As one of the preferred embodiments of the invention, the noctilucent powder is aluminate long afterglow luminescent material with the grain diameter of 5-10 nanometers.
The aluminate long afterglow luminescent material is Sr 4Al14O25:（Eu2+,Dy3+) long afterglow luminescent powder, the grain diameter is 5nm, sr 4Al14O25:（Eu2+,Dy3+) long afterglow luminescent powder can emit blue-green fluorescence after being irradiated by light, and the road marking paint can have obvious visibility at night and in the environment with darker light, thereby increasing the reminding and warning functions of the road marking paint.
As one of the preferred embodiments of the present invention, the pigment is selected from any one of titanium white and chrome yellow.
The titanium dioxide and chrome yellow can be compounded and compatible with various resin systems such as acrylic resin, polyester resin and the like, and meanwhile, the titanium dioxide and chrome yellow serving as pavement marking paint has the advantages of strong weather resistance, bright color and improvement of the durability of the paint.
As one of the preferred embodiments of the invention, the particle size of the elastic filler I is 160-180 microns, the particle size of the elastic filler II is 250-300 microns, the density of the elastic filler I is smaller than that of the elastic filler II, the elastic filler I is selected from any one material particle of EVA and soft silica gel, and the elastic filler is selected from any one material particle of TPE and PU.
According to the invention, the elastic filler I is preferably EVA particles, the elastic filler II is preferably Polyurethane (PU) particles, the elastic filler I and the elastic filler II are framework materials of the pavement marking paint, a certain supporting effect is achieved on the noctilucent hollow glass microspheres, one part of the elastic filler I is suspended in the middle layer of the pavement marking paint, the other part of the elastic filler I and the noctilucent hollow glass microspheres float on the surface layer of the pavement marking paint together, the elastic filler II is submerged in the bottom layer of the pavement marking paint, the elastic filler I and the elastic filler II have good elasticity and recovery property, the elastic filler I floats on the surface of the pavement marking paint, the roughness of the surface of the pavement marking can be increased on the basis of the noctilucent hollow glass microspheres, so that the anti-skid performance of the pavement marking can be improved, the elastic recovery effect of the elastic filler I can enable the contact between a tire and the pavement to be tighter, the friction force can be increased, the anti-skid performance of the pavement marking can be further improved, the gaps and defects in the pavement marking can be filled, the gaps and defects in the pavement marking can be more compact, the pavement marking can be reduced, the air holes and cracks in the pavement marking can be helped, and the overall compactness of the pavement marking can be improved.
The elastic filler I and the elastic filler II can obviously delaminate in the pavement marking paint, the preferable emulsion type acrylic resin with low molecular weight of the photo-curing resin has the molecular weight of 5000-7000 and the density of 1.1-1.3 g/cm, EVA and soft silica gel as the elastic filler I have the densities of 0.90-0.93 g/cm and 1.02-1.03 g/cm respectively, TPE and PU as the elastic filler II have the densities of 1.3-2.0 g/cm and 1.25-1.4 g/cm respectively, and the densities of the emulsion type acrylic resin, the elastic filler I and the elastic filler II are as follows in the order from large to small: the elastic filler II is larger than the emulsion type acrylic resin and larger than the emulsion type acrylic resin, so that the elastic filler II is in a sinking state in the pavement marking paint, the emulsion type acrylic resin is larger than the elastic filler I, the elastic filler I is in a floating state in the pavement marking paint, the density of the noctilucent hollow glass microspheres is 0.3-0.6 g/cm, and the density is the smallest, and therefore the noctilucent hollow glass microspheres can float on the surface layer of the pavement marking paint.
A manufacturing method of an anti-skid pavement marking paint comprises the following steps:
S1, adding hollow glass microspheres into a sodium hydroxide solution, heating and refluxing, and carrying out etching treatment on the surfaces of the hollow glass microspheres to obtain etched hollow glass microspheres;
S2, stirring and dissolving a silane coupling agent in ethanol to obtain an ethanol solution of the silane coupling agent, mixing the ethanol solution of the silane coupling agent with noctilucent powder, and uniformly stirring to obtain a noctilucent solution;
S3, spraying the noctilucent solution on the surface of the etched hollow glass microsphere, and performing heat curing under a high temperature condition to form a noctilucent coating on the surface of the etched hollow glass microsphere to obtain the noctilucent hollow glass microsphere;
S4, adding the photoinitiator into the photo-curing resin, and stirring for 5min at normal temperature to obtain a photo-curing resin system;
S5, sequentially adding the noctilucent hollow glass microspheres, the elastic filler I, the elastic filler II and the pigment into a photo-curing resin system, and stirring for 10min at normal temperature to obtain the pavement marking paint.
As one of the preferred embodiments of the present invention, in the step S1, the hollow glass microspheres and the sodium hydroxide solution are heated and refluxed by using a flask, the mass ratio of the hollow glass microspheres to the sodium hydroxide solution is 1:400-600, the concentration of the sodium hydroxide solution is 0.3-0.6 mol/L, the reflux temperature is 70-100 ℃, and the reflux time is 60-120 min.
The conditions in the preferred step S1 of the invention are as follows: the mass ratio of the hollow glass microspheres to the sodium hydroxide solution is 1:500, the concentration of the sodium hydroxide solution is 0.5mol/L, the reflux temperature is 100 ℃, the reflux time is 90min, and the specific operation steps of the step S1 are as follows: 1.0g of hollow glass microspheres and 500g of 0.5mol/L sodium hydroxide solution are respectively weighed and put into a 500ml flask, reflux is carried out for 120min under the heating condition of 100 ℃, then decompression filtration is carried out while the solution is hot, 500ml of deionized water and 500ml of absolute ethyl alcohol are sequentially used for washing the hollow glass microspheres, the washed hollow glass microspheres are transferred into a drying box of 70 ℃ for drying for 48h, and etched hollow glass microspheres can be obtained, and an etching groove with the depth of 80-100 nm can be formed on the surfaces of the hollow glass microspheres through the etching treatment.
According to the invention, the surface of the hollow glass microsphere is etched by using the sodium hydroxide solution, so that an etching groove is formed on the surface of the hollow glass microsphere, the etched hollow glass microsphere is obtained, the roughness of the surface of the hollow glass microsphere is increased by the etching groove, the luminous solution is favorably attached to the surface of the etched hollow glass microsphere, the anti-skid performance of the pavement marking paint can be improved to a certain extent, in addition, the etching groove can enable light to be diffusely reflected on the surface of the hollow glass microsphere, when the light is directly irradiated to the pavement marking paint, the stimulus of reflected light of the microsphere to eyes of a driver can be reduced, and the phenomenon that the reflected light is too strong to influence the observation of other conditions of the pavement by the driver is avoided.
The sodium hydroxide solution is used for treating the hollow glass microspheres mainly has two effects, namely, an etching groove is formed on the surfaces of the hollow glass microspheres, so that the surfaces of the hollow glass microspheres are roughened, and the reaction principle of the sodium hydroxide solution and the hollow glass microspheres is as follows: OH - ions in sodium hydroxide and a silicon oxygen skeleton (identical to Si-O-Si identical to) in the hollow glass microspheres are subjected to chemical reaction to break Si-O bonds, so that etching grooves are formed on the surfaces of the hollow glass microspheres, the surface roughness of the hollow glass microspheres is increased, the surface hydroxyl content of the hollow glass microspheres can be increased by activating the surfaces of the hollow glass microspheres, the hydroxyl content of the surfaces of the hollow glass microspheres is increased, on one hand, the number of chemical bonds generated between one silane coupling agent molecule in noctilucent solution and the hydroxyl on the surfaces of the etched hollow glass microspheres can be increased, the noctilucent coating and the surfaces of the etched hollow glass microspheres are combined more firmly, and the number of points for chemical bonding between the noctilucent powder and the hydroxyl on the surfaces of the etched hollow glass microspheres can be increased, on the other hand, the surfaces of the etched hollow glass microspheres can be loaded with more noctilucent powder through the silane coupling agent, the noctilucent coating has stronger fluorescence effect at night, and the visual marking of the noctilucent coating at night is further increased.
The etching groove can form the protection to the noctilucent powder loaded on the surface of the etching hollow glass microsphere to a certain extent, in the process of forming the noctilucent layer on the surface of the etching hollow glass microsphere, a part of noctilucent powder is loaded in the etching groove through a silane coupling agent, the noctilucent hollow glass microsphere is rubbed for a long time, the noctilucent coating outside the etching groove is separated to a certain extent, the inside etching hollow glass microsphere is exposed outside, and the noctilucent coating in the etching groove is protected by the etching groove, so that the noctilucent coating cannot be separated, and the service life of the noctilucent hollow glass microsphere is prolonged.
The anti-skid performance of the pavement marking is improved to a certain extent by etching the hollow glass microspheres, when the hollow glass microspheres subjected to etching treatment are contained in the pavement marking paint, the friction force between the pavement marking and the tire can be improved by etching grooves on the surfaces of the hollow glass microspheres, so that the anti-skid performance of the pavement is improved, the contact area between the tire and the pavement marking can be increased due to the tiny concave-convex structures in the running process of a vehicle, further, larger friction force is generated, the slipping phenomenon of the vehicle on a wet slippery or icy pavement can be effectively reduced by the increased friction force, and the running safety of the vehicle is improved.
In step S2, the silane coupling agent, the ethanol and the deionized water are mixed uniformly by using a stirrer, the stirring speed is 250-300 rpm, the stirring time is 120-180 min, the ethanol solution of the silane coupling agent is obtained, the noctilucent powder is added into the ethanol solution of the silane coupling agent, the stirring is continued for the second time by using the stirrer, the stirring speed is 450-500 rpm, the stirring time is 200-250 min, the noctilucent powder is uniformly dispersed in the ethanol solution of the silane coupling agent, and the noctilucent solution is obtained, wherein the noctilucent solution comprises the following components in percentage by weight: 5-10% of silane coupling agent, 67-79% of ethanol, 15-20% of deionized water and 1-3% of noctilucent powder, wherein the silane coupling agent is gamma-methacryloxypropyl trimethoxysilane.
The luminous solution of the invention comprises the following components in percentage by weight: the invention preferably comprises 5 percent of silane coupling agent, 78 percent of ethanol, 15 percent of deionized water and 2 percent of noctilucent powder, wherein the silane coupling agent is gamma-methacryloxypropyl trimethoxy silane, the silane coupling agent has two functions in the pavement marking paint, firstly, the noctilucent powder is fixed on the surface of etched hollow glass microspheres in a chemical bonding mode, secondly, the bonding capability of the noctilucent hollow glass microspheres and light-cured resin is improved, the noctilucent hollow glass microspheres are not easy to fall off from pavement markings in the use process, the silane coupling agent contains a methacrylate group and three methoxy silane groups, part of methoxy silane groups in the silane coupling agent chemically react with aluminum atoms in aluminate long afterglow luminescent materials to form Si-O-Al chemical bonds, the other part of methoxysilane groups react with hydroxyl (-OH) and other functional groups on the surface of the etched hollow glass microsphere to form Si-O-Si chemical bonds, namely a chemical bond connecting system (aluminate long afterglow luminescent material-O-Si-O-etched hollow glass microsphere) taking Si in a silane coupling agent as a center is formed, so that noctilucent powder is fixed on the surface of the etched hollow glass microsphere in a chemical bonding mode, and meanwhile, a methacrylate group in the silane coupling agent can react with a carbon-carbon double bond (-C=C-) in acrylic resin in an addition mode, so that the bonding capability of noctilucent hollow glass and the acrylic resin is improved in a chemical bonding mode, and the noctilucent hollow glass microsphere is not easy to fall off from a pavement marking in the use process.
In step S3, the noctilucent solution is sprayed out by an air pressure spraying device to form mist, and then sprayed on the surface of the etched hollow glass microsphere to obtain the etched hollow glass microsphere sprayed with the noctilucent solution, the etched hollow glass microsphere sprayed with the noctilucent solution is placed in an environment of 100-150 ℃ and thermally cured for 8-10 hours, so that the silane coupling agent in the noctilucent solution is cured on the surface of the etched hollow glass microsphere to form a noctilucent coating, and meanwhile, the noctilucent powder is fixed on the surface of the etched hollow glass microsphere to obtain the noctilucent hollow glass microsphere.
The specific process of spraying the noctilucent solution on the surface of the etched hollow glass microsphere and forming the noctilucent coating is as follows: the method comprises the steps of placing etched hollow glass microspheres in a vibration frame, vibrating the vibration frame through a vibration exciter to enable the etched hollow glass microspheres to continuously roll and jump on a screen, conveying a pre-configured noctilucent solution to a nozzle through a paint supply system of an air pressure spraying device, conveying compressed air to the nozzle through an air pipe, atomizing the paint into tiny particles through high-speed flow of the compressed air when the paint and the compressed air are mixed at the nozzle, spraying the tiny particles on the surfaces of the etched hollow glass microspheres, uniformly spraying the noctilucent solution on the surfaces of the etched hollow glass microspheres through the cooperation of the vibration frame and the air pressure spraying device, forming etched hollow glass microspheres sprayed with the noctilucent solution, heating and curing the etched hollow glass microspheres sprayed with the noctilucent solution in a drying device for 8-10 hours at 100-150 ℃, and curing the sprayed noctilucent solution on the etched hollow glass microspheres to form noctilucent coatings.
The silane coupling agent has a difunctional structure, one end of the silane coupling agent can chemically react with active groups such as hydroxyl on the surface of the glass microsphere, the other end of the silane coupling agent can form chemical bonds or physical adsorption with the noctilucent material, and under the heating condition, the silane coupling agent can react with hydrolysis, condensation and the like to form chemical bonds such as silicon oxygen bonds, so that the noctilucent material is firmly fixed on the surface of the etched hollow glass microsphere.
When the pavement marking paint is used for construction, firstly, dust on a pavement is cleaned, the pavement is kept in a dry and clean state, under the normal temperature condition, the light-cured resin and the photoinitiator are uniformly stirred by using a stirrer for 5min, then, the luminous hollow glass microspheres, the elastic filler I, the elastic filler II and the pigment are sequentially added, and are stirred for 10min under the normal temperature condition, so that the pavement marking paint is obtained, the pavement marking paint is added into a cold spray marking machine, then, an ultraviolet lamp curing device is additionally arranged at the tail part of the cold spray marking machine, the distance between the ultraviolet lamp and the ground is 10-15 cm, the ultraviolet lamp curing device is a platy ultraviolet lamp matrix, the pavement marking is sprayed on the dry and clean pavement by using the cold spray marking machine, the thickness of the sprayed pavement marking is 2-3 mm, and then, the surface of the pavement marking is cured and set by using the ultraviolet lamp curing device.
Example 1
1.0G of hollow glass microspheres (with the particle size of 150 micrometers and the thickness of the spherical wall of 10 micrometers) and 500g of 0.5mol/L sodium hydroxide solution are respectively weighed, put into a 500ml flask, reflux is carried out for 90min under the heating condition of 100 ℃, then decompression filtration is carried out while the solution is hot, 500ml of deionized water and 500ml of absolute ethyl alcohol are sequentially used for flushing the hollow glass microspheres, and the flushed hollow glass microspheres are transferred into a drying box with the temperature of 70 ℃ for drying for 48h, thus obtaining the etched hollow glass microspheres.
5.0G of a silane coupling agent, 15.0g of deionized water and 78.0g of ethanol were placed in a beaker, ph=4 was adjusted using dilute sulfuric acid, then stirred at 275rpm for 150 minutes using an electromagnetic stirrer, and then 2g of Sr 4Al14O25:（Eu2 +,Dy3+) long-afterglow luminescent powder (particle size: 5 nanometers), stirring for the second time by using a stirrer, wherein the stirring speed is 500rpm, the stirring time is 250 minutes, and the noctilucent powder is uniformly dispersed in the ethanol solution of the silane coupling agent to obtain noctilucent solution.
Delivering noctilucent solution into air pressure spraying equipment, spreading etched hollow glass microspheres in a vibration frame, then spraying the noctilucent solution onto the surfaces of the etched hollow glass microspheres by using the air pressure spraying equipment, obtaining the etched hollow glass microspheres sprayed with the noctilucent solution, placing the etched hollow glass microspheres sprayed with the noctilucent solution into a drying oven, and thermally curing at the temperature of 125 ℃ for 10 hours to obtain the noctilucent hollow glass microspheres.
5.0G of 4,4' -dichlorobenzophenone is added into 50.0g of acrylic resin emulsion (molecular weight: 5000), stirred for 5min under normal temperature, then 10.0g of luminous hollow glass microspheres, 15.0g of EVA particles (particle size: 160 microns), 20.0g of Polyurethane (PU) particles (particle size: 300 microns) and 1.0g of titanium white are sequentially added, and stirring is continued for 10min under normal temperature, so that white pavement marking paint capable of emitting blue-green fluorescence at night is obtained, and if chrome yellow is used for replacing titanium white, yellow pavement marking paint capable of emitting blue-green fluorescence at night is obtained.
Comparative example 1
The preparation of the luminous hollow glass microspheres was carried out according to the method steps of example 1, the luminous hollow glass microspheres were rinsed with running water (flow rate: 0.5L/min) for 2 hours to obtain luminous hollow glass microspheres I, and then the afterglow luminance emitted by the luminous hollow glass microspheres I was measured, and the luminance measurement method was as follows: 1.0g of the luminous hollow glass microsphere I is weighed and placed in a darkroom with the brightness of less than 0.01cd/m 2 for 24 hours, then the darkroom is immediately placed in the darkroom after being irradiated by a fluorescent lamp for 30 minutes, and the afterglow brightness of the luminous hollow glass microsphere I is measured by a screen brightness meter, and the initial afterglow brightness of the luminous hollow glass microsphere I is 1.5 cd/m 2.
Comparative example 2
The silane coupling agent in example 1 was replaced with ethanol of equal mass, then a luminescent hollow glass microsphere was prepared according to the method steps of example 1, the luminescent hollow glass microsphere was washed with running water (flow rate: 0.5L/min) for 2 hours to obtain a luminescent hollow glass microsphere II, and then the afterglow luminance of the luminescent hollow glass microsphere II was measured according to the luminance test method in comparative example 1 to obtain an initial afterglow luminance of 0.12 cd/m 2.
The purpose of setting comparative examples 1 and 2 is to explore the effect of the silane coupling agent in the preparation process of the noctilucent hollow glass microsphere and the effect of the silane coupling agent on the performance of the noctilucent hollow glass microsphere, the silane coupling agent has a remarkable effect on the afterglow brightness of the noctilucent hollow glass microsphere, as can be seen from comparative example 1, the initial afterglow brightness of the noctilucent hollow glass microsphere I prepared by using the silane coupling agent is 1.5 cd/m 2, while in comparative example 2, after the silane coupling agent is replaced by ethanol with equal mass, the initial afterglow brightness of the prepared noctilucent hollow glass microsphere II is only 0.12 cd/m 2, which indicates that the silane coupling agent can increase the binding force between noctilucent powder and the hollow glass microsphere, so that the noctilucent powder can be fixed on the surface of the hollow glass microsphere, thereby helping to reduce the situation that the noctilucent powder falls off in the preparation and use processes, and improving the afterglow brightness of the hollow glass microsphere.
Comparative example 3
Pavement marking paint was prepared as in example 1, and then tested for coefficient of friction (μ), slip resistance (BPN) and abrasion resistance (mg), respectively, using the method of: ASTM D1894-14, method for slip coefficient use, test as: ASTM E303-93, method of abrasion resistance use, is measured as: CNS 1333.
Comparative example 4
The difference between example 1 and comparative example 4 is that comparative example 4 was prepared in the same manner as in example 1, except that elastic filler I (EVA particles, particle diameter: 160 μm) was not added, and the friction coefficient (μ), slip resistance (BPN) and abrasion resistance (mg) were measured in the same manner as in comparative example 3, respectively.
The results of the detection of the pavement marking paints of comparative example 3 and comparative example 4 are shown in the following table.
The anti-slip coefficient (BPN) and the friction coefficient (μ) are important indexes for describing the anti-slip performance of the coating, a positive correlation exists between the anti-slip coefficient (BPN) and the friction coefficient μ, the friction coefficient μ reflects the magnitude of friction resistance between the surface of the coating and a contact object, and the larger the μ value is, the coarser the surface of the coating is, the larger the friction force between the surface of the coating and the contact object is, and therefore the better the anti-slip performance is, and the larger the friction coefficient μ of the coating is, the higher the anti-slip coefficient BPN is and the better the anti-slip performance is.
The purpose of the comparative examples 3 and 4 was to investigate the effect of the elastic filler I (EVA particles, particle diameter: 160 μm) on the performance of the pavement marking paint, by comparing the results of the measurements of the friction coefficient, slip resistance and abrasion resistance of the comparative examples 3 (containing the elastic filler I) and 4 (not containing the elastic filler I), it was found that the elastic filler I had a significant effect on the friction coefficient (μ) and slip resistance (BPN) of the pavement marking paint, the elastic filler I and the luminescent hollow glass microspheres were floated on the surface of the pavement marking paint together, a plurality of projections were formed on the surface of the pavement marking paint after curing, the surface of the pavement marking paint was roughened, and from the results of the measurements, it was found that the friction coefficient of the comparative example 3 containing the elastic filler I was 1.25, and the friction coefficient of the comparative example 4 containing no elastic filler I was 1.05, indicating that the addition of the elastic filler I improved the friction coefficient (μ) and slip resistance (BPN) of the pavement marking paint, thereby enhancing the friction force between the pavement marking paint and the vehicle tire, and improving the running safety.
The abrasion resistance of comparative example 3 is 46mg, and the abrasion resistance of comparative example 4 is 40mg, which indicates that the addition of the elastic filler I can improve the abrasion resistance of the pavement marking paint to a certain extent, prolong the service life of the pavement marking paint, the elastic filler I is EVA particles, the molecular chains of the EVA particles contain a large number of polar groups such as carbonyl and hydroxyl, the groups can form hydrogen bonds with acrylic resin, the adhesion of the EVA particles to the acrylic resin is enhanced, and the EVA particles are not easy to abrade in the friction process, so that the EVA particles show good abrasion resistance.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (7)
1. The anti-skid pavement marking paint is characterized by comprising the following components in parts by weight: 40-50 parts of photo-curing resin, 5-10 parts of noctilucent hollow glass microspheres, 15-20 parts of elastic filler I, 15-20 parts of elastic filler II, 0.1-2 parts of pigment and 1-5 parts of photoinitiator, wherein the noctilucent hollow glass microspheres consist of etched hollow glass microspheres and noctilucent coatings on the outer surfaces of the etched hollow glass microspheres, and the density of the elastic filler I is less than that of the elastic filler II;
The particle size of the elastic filler I is 160-180 microns, the particle size of the elastic filler II is 250-300 microns, the elastic filler I is selected from any one material particle of EVA and soft silica gel, and the elastic filler II is selected from any one material particle of TPE and PU;
The light-cured resin is emulsion type acrylic resin with low molecular weight, the molecular weight of the light-cured resin is 5000-7000, the density is 1.1-1.3 g/cm, the density of EVA is 0.90-0.93 g/cm, the density of soft silica gel is 1.02-1.03 g/cm, the density of TPE is 1.3-2.0 g/cm, and the density of PU is 1.25-1.4 g/cm.
2. The non-slip pavement marking paint according to claim 1, wherein: the photoinitiator is selected from any one of benzophenone derivatives or benzophenone.
3. The non-slip pavement marking paint according to claim 1, wherein: the pigment is selected from any one of titanium white and chrome yellow.
4. A method of making the non-slip pavement marking paint of any of claims 1-3, comprising the steps of:
S1, adding hollow glass microspheres into a sodium hydroxide solution, heating and refluxing, and carrying out etching treatment on the surfaces of the hollow glass microspheres to obtain etched hollow glass microspheres;
S2, stirring and dissolving a silane coupling agent in ethanol to obtain an ethanol solution of the silane coupling agent, mixing the ethanol solution of the silane coupling agent with noctilucent powder, and uniformly stirring to obtain a noctilucent solution;
S3, spraying the noctilucent solution on the surface of the etched hollow glass microsphere, and performing heat curing under a high temperature condition to form a noctilucent coating on the surface of the etched hollow glass microsphere to obtain the noctilucent hollow glass microsphere;
S4, adding the photoinitiator into the photo-curing resin, and stirring for 5min at normal temperature to obtain a photo-curing resin system;
s5, sequentially adding the noctilucent hollow glass microspheres, the elastic filler I, the elastic filler II and the pigment into a photo-curing resin system, and stirring for 10min at normal temperature to obtain the pavement marking paint;
In the step S2, the silane coupling agent, the ethanol and the deionized water are uniformly mixed by using a stirrer, the stirring speed is 250-300 rpm, the stirring time is 120-180 min, the ethanol solution of the silane coupling agent is obtained, the noctilucent powder is added into the ethanol solution of the silane coupling agent, the stirring is continued for the second time by using the stirrer, the stirring speed is 450-500 rpm, the stirring time is 200-250 min, the noctilucent powder is uniformly dispersed in the ethanol solution of the silane coupling agent, and the noctilucent solution is obtained, wherein the noctilucent solution comprises the following components in percentage by weight: 5-10% of silane coupling agent, 67-79% of ethanol, 15-20% of deionized water and 1-3% of noctilucent powder, wherein the silane coupling agent is gamma-methacryloxypropyl trimethoxysilane;
In the step S3, the noctilucent solution is sprayed out through an air pressure spraying device and forms mist, then the mist is sprayed on the surfaces of the etched hollow glass microspheres to obtain etched hollow glass microspheres sprayed with the noctilucent solution, the etched hollow glass microspheres sprayed with the noctilucent solution are placed in an environment of 100-150 ℃ and thermally cured for 8-10 hours, so that the silane coupling agent in the noctilucent solution is cured on the surfaces of the etched hollow glass microspheres to form noctilucent coatings, and meanwhile, noctilucent powder is fixed on the surfaces of the etched hollow glass microspheres to obtain the noctilucent hollow glass microspheres.
5. The method of making a non-slip pavement marking paint according to claim 4, wherein: the particle size of the hollow glass microsphere is 100-150 microns, and the thickness of the spherical wall of the hollow glass microsphere is 10-20 microns.
6. The method of making a non-slip pavement marking paint according to claim 4, wherein: the luminous powder is aluminate long afterglow luminous material with the grain diameter of 5-10 nanometers.
7. The method of making a non-slip pavement marking paint according to claim 4, wherein: in the step S1, the hollow glass microspheres and the sodium hydroxide solution are heated and refluxed by using a flask, the mass ratio of the hollow glass microspheres to the sodium hydroxide solution is 1:400-600, the concentration of the sodium hydroxide solution is 0.3-0.6 mol/L, the reflux temperature is 70-100 ℃, and the reflux time is 60-120 min.
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