CN112980266A

CN112980266A - Water-based self-luminous reflective rain and night marking coating and preparation method thereof, road marking and construction method thereof

Info

Publication number: CN112980266A
Application number: CN201911282156.2A
Authority: CN
Inventors: 关一丹; 王娴娴; 卢俊彪
Original assignee: Nippon Paint China Co Ltd
Current assignee: Nippon Paint China Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2021-06-18

Abstract

The invention discloses a water-based self-luminous reflective rain night marking coating, which comprises a component A and a component B, wherein the component A is a coating substrate, and the component B comprises high-reflective beads which are spread on the surface of the coating substrate; the coating matrix comprises the following components in parts by mass: 25-50 parts of water-based film-forming resin; 25-50 parts of pigment and filler; 5-20 parts of glass beads; 1-10 parts of an auxiliary agent; 1-10 parts of water. The marking paint is safe and environment-friendly, and has good wear resistance, weather resistance, rain resistance, acid and alkali resistance, good light reflectivity and good light-emitting effect. The invention also discloses a preparation method of the marking paint, a road marking and a construction method thereof.

Description

Water-based self-luminous reflective rain and night marking coating and preparation method thereof, road marking and construction method thereof

Technical Field

The invention relates to the technical field of road marking paint. More particularly, relates to a water-based self-luminous reflective rain and night marking coating and a preparation method thereof, a road marking and a construction method thereof.

Background

With the rapid development of the national traffic industry, the addition of artificial intelligence and 5G communication technology, a traffic network which is suitable for intelligent cities and the requirements of automatically driving automobiles is very important. Road markings, one of the important road infrastructures, are required to have better stability, durability and easy identification to ensure safe and efficient driving of the autonomous vehicle. In addition, the marking material has various market demands for improving the environmental protection, construction safety, flexible use and the like of the marking material. At present, the materials for road marking in China mainly comprise marking paint, and reflecting marking adhesive tapes with relatively high price are used in some foreign areas. At present, the road marking paint mainly used in China is hot-melt type, solvent type, bi-component room temperature marking paint and the like. Among them, the most widely used hot-melt type marking paint has many defects, such as high construction temperature, high energy consumption, poor safety, poor adhesion between resin and reflective glass beads, and the like, so that the reflective effect is not lasting. The solvent-based marking paint contains a large amount of volatile organic compounds, so that pollution harm to people and environment can be caused in the construction process, the construction film thickness is low, the light reflecting effect is poor, and the wear resistance and durability are poor. The water-based single-component marking paint has the advantages of environmental friendliness, safe construction process, simplicity and convenience in use of related marking equipment, high marking drying speed and the like, and is being gradually popularized.

Disclosure of Invention

In view of the above problems, a first object of the present invention is to provide a water-based self-luminous retroreflective rain-night marking paint. According to the thickness of a common water-based marking construction film, the marking paint disclosed by the invention contains a paint matrix of a component A containing glass beads and a component B containing high-reflection reflective beads. The glass beads in the component A with smaller particle size can be fully embedded into a coating matrix so as to play a role in reflecting light and enhancing; due to the large size of the high-reflection light-reflecting beads in the component B, one part of the high-reflection light-reflecting beads is embedded into the marking line matrix, and the other part of the high-reflection light-reflecting beads is exposed in the air, so that a good light-reflecting effect can be achieved. Because the coating substrate has good adhesive force to the reflective beads, the hardness and wear resistance and durability of the surface of the marking are enhanced and improved, so that the reflectivity of the marking can be more durable and stable, and can be more easily identified by a camera of a human driver or an automatic driving automobile.

The invention aims to provide a water-based self-luminous reflective rain night marking paint.

The second purpose of the invention is to provide a preparation method of the water-based self-luminous reflective rain night marking paint.

The third purpose of the invention is to provide a construction method of the road marking.

It is a fourth object of the present invention to provide a road marking.

In order to achieve the first purpose, the invention adopts the following technical scheme:

a water-based self-luminous reflective rain night marking paint comprises a component A and a component B, wherein the component A is a paint matrix, and the component B comprises high-reflective beads which are spread on the surface of the paint matrix;

the coating matrix comprises the following components in parts by mass:

further, the spreading area of the high-reflection reflective bead is 150-²。

Further, the particle size of the glass micro-beads is smaller than that of the high-reflection light-reflecting beads.

Further, in the component A, the glass beads are solid glass beads with the particle size of 80-200 meshes.

Furthermore, in the component B, the particle size of the high-reflection light-reflecting beads is 18-40 meshes.

Further, the high-reflection light-reflecting beads are one or two of solid glass beads and raindrop beads.

Furthermore, the high-reflection light-reflecting beads are a mixture of solid glass beads and raindrop beads according to the mass ratio of 1:0.1-1: 9.

Further, the aqueous film-forming resin is selected from one or more of styrene-acrylic emulsion and pure acrylic emulsion.

Further, the solid content of the aqueous film-forming resin is 30-60%.

Further, the aqueous film-forming resin particles are in a conventional form, a self-crosslinking form, a core-shell structure or a polymerization emulsion or dispersion with an interpenetrating network structure.

Further, the coating matrix also comprises 1-5 parts of ethanol by mass.

Further, the coating matrix also comprises 5-30 parts by mass of a long afterglow luminescent material.

Further, the particle size of the long afterglow luminescent material is 150-5000 meshes.

Further, the long afterglow luminescent material is selected from at least one of rare earth element activated alkaline earth aluminate-based long afterglow luminescent materials and silicate-based long afterglow luminescent materials.

Further, the pigment filler comprises 5-10 parts of titanium dioxide and 20-40 parts of heavy calcium carbonate.

Further, the granularity of the titanium dioxide is 800-2500 meshes.

Further, the auxiliary agent comprises one or more of a pH regulator, a dispersing agent, a wetting agent, a defoaming agent, a film forming auxiliary agent and a rheological auxiliary agent.

Further, the mass part of the auxiliary agent is 2.1-8.6 parts.

Further, the auxiliary agent comprises the following components in parts by mass:

in order to achieve the second object, the invention provides a preparation method of a water-based self-luminous reflective rain night marking paint, which comprises the following steps:

and uniformly mixing the raw materials of the components to obtain the component A.

In order to achieve the third object, the present invention provides a method for constructing a road marking, wherein the construction paint is the aqueous self-luminous reflective rain and night marking paint according to the first object, comprising:

applying the A component to a pavement to form a primer coat;

applying the B component to the primer coat before the primer coat is cured.

In order to achieve the fourth object, the present invention provides a road marking constructed by the construction method according to the third object.

The invention has the following beneficial effects:

the aqueous self-luminous reflective rain night marking paint provided by the invention has high adhesion among components and on a road surface, long-acting reflective stability, safe and simple construction, extremely low VOC content, good reflective capability in an environment with water accumulated at night or rain night, and is easily identified by a driver or an automatic driving automobile. Meanwhile, the marking paint takes water as a dispersion medium, is safe and environment-friendly, and does not need to be heated in the construction process; has the characteristics of good wear resistance, weather resistance, rain resistance, acid and alkali resistance and the like. The road marking provided by the invention has good adhesion on the road surface, resists impact, and is not easy to generate phenomena of color change, cracking, peeling and the like.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 shows the luminous effect of a rain night line coating in a dry condition in an embodiment of the present invention.

Fig. 2 shows the luminous effect of the rain night line paint in the wet condition in the embodiment of the present invention.

Detailed Description

In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

One embodiment of the invention provides a water-based self-luminous reflective rain and night marking paint, which comprises a component A and a component B, wherein the component A is a paint matrix, and the component B comprises high-reflective beads for spreading on the surface of the paint matrix;

the coating matrix comprises the following components in parts by mass:

the marking paint takes water as a dispersion medium, is safe and environment-friendly, and does not need to be heated in the construction process; and has the characteristics of good wear resistance, weather resistance, rain resistance, acid and alkali resistance and the like.

In a preferred example, the particle size of the glass micro-beads is smaller than the particle size of the highly reflective light-reflecting beads. In the technical scheme, the high-reflection reflective beads arranged in the component B provide a high-brightness reflective effect of the marked line under a directional light source; under the condition that the component B is provided with the high-reflection reflective beads, the component A coating matrix is provided with the glass beads with the granularity smaller than that of the high-reflection reflective beads, so that the integral wear resistance and durability and the lasting reflective and shiny performance of a paint film are further improved, and the retroreflection of marked lines is improved.

In a further preferred example, in the component a, the glass beads are solid glass beads having a particle size of 80 to 200 mesh.

In a further preferred example, in the component B, the particle size of the high-reflection light-reflecting beads is 18-40 meshes. Exemplary highly reflective retroreflective beads include, but are not limited to, one or both selected from solid glass beads, raindrop beads.

Furthermore, the high-reflection light-reflecting beads are a mixture of solid glass beads and raindrop beads according to the mass ratio of 1:0.1-1: 9. At the moment, the marking paint has stronger light reflecting and light emitting capabilities in accumulated water environments such as dark night, rainy night and the like, and can be better identified by drivers or automatically driven automobiles and the like.

In a preferred example, the spreading area of the high-reflection reflective bead is 150-². So as to ensure the reflecting effect and stability.

In the technical scheme, the water-based film-forming resin mainly plays a role in providing basic paint performance, and fully bonding various functional pigment and filler powder and reflective beads which mainly play a role in reflecting light. The water-based film-forming resin is at least one of phenylpropionic acid emulsion and pure acrylic emulsion, and the form of the water-based film-forming resin can be conventional, self-crosslinking, core-shell structure and polymerized emulsion or dispersoid with interpenetrating network structure. In one example, the aqueous film-forming resin is selected from one or more of styrene-acrylic emulsion and pure acrylic emulsion. Wherein the solid content of the aqueous film-forming resin is preferably 30-60%.

In still another preferred example, the coating base further includes 1 to 5 parts by mass of ethanol. The ethanol can promote the drying speed and has the function of low temperature freezing resistance.

In a further preferred example, the coating matrix further comprises 5-30 parts by mass of a long-afterglow luminescent material. The long afterglow luminescent material can make the road marking more easily identified by the self-luminescence effect under the dark condition. The grain size of the long afterglow luminescent material is preferably 150-5000 meshes. Preferably, the long-afterglow luminescent material is at least one selected from the group consisting of rare earth element activated alkaline earth aluminate-based long-afterglow luminescent materials and silicate-based long-afterglow luminescent materials. Specifically, the aluminate-based luminescent material includes, but is not limited to, SrAl₂O₄:Eu²⁺、SrAl₂O₄:Dy³⁺、Sr₄Al₁₄O₂₅:Eu²⁺、Sr₄Al₁₄O₂₅:Dy³⁺One or a mixture of more of the above; the silicate-based luminescent material is Sr₂MgSi₂O₇:Eu²⁺、Sr₂MgSi₂O₇:Dy³⁺One or more of them.

In yet another example, the pigment filler comprises titanium dioxide, heavy calcium. The titanium dioxide and the heavy calcium carbonate can play a good role in covering and enhancing the wear resistance. Illustratively, the pigment filler comprises 5-10 parts of titanium dioxide and 20-40 parts of heavy calcium carbonate; the granularity of the titanium dioxide is preferably 800-2500 meshes.

In yet another example, the adjuvant comprises a pH adjuster (illustratively ammonia, amp95, diethanolamine, triethanolamine, etc.), a dispersant (illustratively TAMOL^TM901 and TAMOL^TM731. DISPERBYK-180, etc.), wetting agent (which may illustratively be ECOSURF)^TMBD109, Surfynol CT-136, etc.), defoamer (illustratively BYK024, etc.), film forming aid (illustratively Texanol, etc.), rheology aid (illustratively ACRYSOL^TM RM-12W、ACRYSOL^TMRM-8W, etc.). The dispersing agent and the wetting agent can improve the dispersion stability of the pigment and filler, obtain better fineness and reduce the porosity of a formed film, and the rheological additive can improve the viscosity and play a role in preventing sedimentation.

In still another preferred example, the addition amount of the auxiliary is 2.1 to 8.6 parts, and the auxiliary preferably comprises, by mass:

according to another embodiment of the present invention, there is provided a method for preparing the aqueous self-luminous retroreflective rain shade marking paint as described above, the method comprising the preparation of the a component: and uniformly mixing the raw materials of the components to obtain the component A.

In a preferred example, in the preparation method, the preparation of the a component comprises the following steps:

1) sequentially adding the water-based film-forming resin, the pH regulator, the wetting agent, the dispersing agent and the defoaming agent of 1/2 into a container, and uniformly stirring and dispersing;

2) titanium dioxide, coarse whiting and long afterglow luminescent materials are sequentially added into the mixed liquid prepared in the step 1) and dispersed uniformly at a high speed; or adding the ground slurry into the mixed solution prepared in the step 1) for stirring and dispersing;

3) sequentially adding the mixture of the film-forming assistant, the antifoaming agent of 1/2 and the ethanol and the water into the mixed slurry prepared in the step 2) for high-speed dispersion, finally adding the mixture of the rheological assistant and the water, the pH regulator of 1/2 and the glass beads, and uniformly dispersing at a medium and low speed to obtain the component A.

The component B is a surface scattering high reflection reflective bead.

According to another embodiment of the present invention, there is provided a method for constructing a road marking, the construction paint being the above-mentioned aqueous self-luminous retroreflective rain and night marking paint, the method comprising:

applying the A component to a pavement to form a primer coat;

applying the B component to the primer coat before the primer coat is cured.

Wherein, the mode of applying the A component on the pavement comprises but is not limited to spraying. The manner of applying the B component to the primer coating includes, but is not limited to, bead-casting.

The marking paint film obtained by the construction method has good adhesion on the road surface, resists impact and is not easy to generate phenomena of color change, cracking, peeling and the like.

According to yet another embodiment of the present invention, there is provided a road marking constructed by the construction method as described above.

The technical solution of the present invention is described below with reference to some specific examples:

example 1

The water-based self-luminous reflective rain and night marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 30 parts of pure acrylic emulsion, 0.3 part of ammonia water and TAMOL pigment dispersant^TM9010.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, and aluminate base optical material SrAl₂O₄:Eu²⁺9 parts of 300 meshes, 10 parts of titanium dioxide powder, 1000 meshes, 27 parts of triple superphosphate, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and 2 parts of rheological additive ACRYSOL^TM0.3 part of RM-12W, 2 parts of water and 16 parts of 100-mesh glass beads; the component B is high-reflection reflective beads, wherein 90 parts of 30-mesh solid glass beads, 10 parts of 30-mesh rainy night beads and the spreading area300g/m²。

The preparation method of the water-based self-luminous reflective rain night marking paint comprises the following steps:

(1) sequentially adding pure acrylic emulsion, ammonia water in 1/2 total amount, pigment dispersing agent, wetting agent and defoaming agent in 1/2 total amount into a container, and stirring and dispersing uniformly;

(2) sequentially adding titanium dioxide, coarse whiting and the long afterglow luminescent material into the mixed solution prepared in the step (1), and uniformly dispersing at a high speed; or adding the ground slurry into the mixed solution prepared in the step (1) to stir and disperse;

(3) and (3) mixing the film-forming assistant, the antifoaming agent of 1/2, ethanol and water, adding into the mixed slurry prepared in the step (2), dispersing at high speed, finally adding the mixture of the rheological assistant and water, 1/2 total amount of ammonia water and glass beads, and dispersing uniformly at medium and low speed to obtain the component A.

(4) Mixing solid glass beads and raindrop uniformly to obtain component B, wherein the component B is surface scattering high-reflection reflective beads with a scattering area of 300g/m²。

(5) And (3) applying the component A prepared in the step (3) to a base material tinplate in a spraying mode, spreading the component B prepared in the step (4) on the component A coating in a spraying mode before the component A is dried, partially embedding the component B in the component A coating, and drying to obtain the self-luminous reflective marked line.

Example 2

The water-based self-luminous reflective rain and night marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 35 parts of pure acrylic emulsion, 0.3 part of ammonia water and TAMOL pigment dispersant^TM9010.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, and aluminate-based luminescent material SrAl₂O₄:Eu²⁺17 parts of 350 meshes, 8 parts of titanium dioxide, 1000 meshes, 17 parts of triple superphosphate, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and rheological additive ACRYSOL^TM0.3 part of RM-12W, 2 parts of water and 15 parts of 80-mesh glass beads; the component B is high-reflection reflective beads, wherein 50 parts of 30-mesh solid glass beads, 50 parts of 28-mesh rainy night beads and a spreading area of 200g/m²。

The preparation method of the water-based self-luminous reflective marking paint comprises the following steps:

(1) sequentially adding pure acrylic emulsion, ammonia water in 1/2 total amount, a pigment dispersing agent, a wetting agent and a defoaming agent in 1/2 total amount into a container, and stirring and dispersing uniformly;

(2) sequentially adding titanium dioxide, coarse whiting and the long-afterglow luminescent material into the mixed solution prepared in the step (1), and uniformly dispersing at a high speed; or adding the ground slurry into the mixed solution prepared in the step (1) to stir and disperse;

(3) and (3) mixing the film-forming assistant, the antifoaming agent of 1/2, ethanol and water, adding into the mixed slurry prepared in the step (2), dispersing at a high speed, finally adding the mixture of the rheological assistant and water, and the ammonia water and the glass beads in the total amount of 1/2, and dispersing uniformly at a medium and low speed to obtain the component A.

(4) Mixing solid glass beads and raindrop uniformly to obtain component B, wherein the component B is surface scattering high-reflection reflective beads with a scattering area of 200g/m²。

Example 3

The water-based self-luminous reflective road marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 20 parts of pure acrylic emulsion, 12 parts of styrene-acrylic emulsion, 950.3 parts of pH regulator amp, and TAMOL pigment dispersant^TM7310.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, silicate-based luminescent material Sr₂MgSi₂O₇:Eu²⁺15 parts of 400 meshes, 10 parts of titanium dioxide powder, 800 meshes, 21 parts of triple superphosphate, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and rheological additive ACRYSOL^TM0.3 part of RM-12W, 2 parts of water and 12 parts of 80-mesh glass beads; the component B is high-reflection reflective beads, wherein the component B comprises 60 parts of 28-mesh solid glass beads, 40 parts of 30-mesh rainy night beads and a spreading area of 200g/m²。

(1) sequentially adding the pure acrylic emulsion, the styrene-acrylic emulsion, the amp95 in total amount of 1/2, the pigment dispersing agent, the wetting agent and the defoaming agent in total amount of 1/2 into a container, and stirring and dispersing uniformly;

(3) and (3) mixing the film-forming assistant, the defoamer of 1/2, ethanol and water, adding the mixture into the mixed slurry prepared in the step (2), dispersing at a high speed, finally adding the mixture of the rheological assistant and water, and diethanolamine and glass beads in the total amount of 1/2, and dispersing uniformly at a medium and low speed to obtain the component A.

Example 4

The water-based self-luminous reflective road marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 50 parts of pure acrylic emulsion, 0.3 part of ammonia water and pigment dispersant TAMOL^TM9010.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, and silicate-based luminescent material SrAl₂O₄:Eu²⁺15 parts of 300 meshes, 10 parts of titanium dioxide, 900 meshes, 25 parts of triple superphosphate, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and rheological additive ACRYSOL^TMRM-12W 0.2 parts and ACRYSOL^TM0.1 part of RM-8W, 2 parts of water and 10 parts of 100-mesh glass beads; the component B is high-reflection reflecting beads, wherein 10 parts of 28-mesh solid glass beads and 90 parts of 24-mesh rainy night beads,spreading area of 200g/m²。

The embodiment also discloses a method for preparing the water-based self-luminous reflective marking paint, which comprises the following steps:

(1) sequentially adding pure acrylic emulsion, styrene-acrylic emulsion, ammonia water in 1/2 total amount, pigment dispersant, wetting agent and defoaming agent in 1/2 total amount into a container, and stirring and dispersing uniformly;

(3) and (3) mixing the film-forming assistant, the antifoaming agent of 1/2, ethanol and water, adding into the mixed slurry prepared in the step (2) for high-speed dispersion, finally adding a mixture of a thixotropic agent and water, and diethanolamine and glass beads in the total amount of 1/2, and uniformly dispersing at a medium-low speed to obtain the component A.

Comparative example 1

The water-based self-luminous reflective road marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 20 parts of pure acrylic emulsion, 0.3 part of ammonia water and TAMOL pigment dispersant^TM9010.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, and silicate-based luminescent material SrAl₂O₄:Eu²⁺10 parts of 300 meshes, 10 parts of titanium dioxide powder, 1000 meshes, 45 parts of triple superphosphate, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and rheological additive ACRYSOL^TMRM-12W0.3 parts, and 100-mesh glass beads 10 parts; the component B is high-reflection reflective beads, wherein the component B comprises 60 parts of 30-mesh solid glass beads and 40 parts of 30-mesh rainy night beads,spreading area 300g/m²。

(3) mixing the film-forming assistant, the defoamer of 1/2, ethanol and water, adding the mixture into the mixed slurry prepared in the step (2), dispersing at a high speed, finally adding the mixture of the rheological assistant and water, 1/2 total amount of ammonia water and glass beads, and dispersing uniformly at a medium and low speed to obtain a component A;

The content of the emulsion is too high, so that the content of the pure acrylic emulsion in the component A is reduced, and a higher wet film thickness cannot be obtained in the construction process, so that the embedding depth of the surface reflective glass beads is too shallow, the surface reflective glass beads can be quickly ground off in use, and the lasting stability of the light emission of the marking is influenced.

Comparative example 2

The water-based self-luminous reflective rain and night marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 30 parts of pure acrylic emulsion, 0.3 part of ammonia water and TAMOL pigment dispersant^TM9010.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, and aluminate base optical material SrAl₂O₄:Eu²⁺9 parts of 300-mesh titanium dioxide10 parts of 1000 meshes, 27 parts of coarse whiting, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and rheological additive ACRYSOL^TMRM-12W0.3 parts, and water 2 parts; the component B is high-reflection reflective beads, wherein 16 parts of 100-mesh glass beads, 90 parts of 30-mesh solid glass beads, 10 parts of 30-mesh rainy night beads and 300g/m of spreading area²。

(3) mixing the film-forming assistant, the defoamer of 1/2, ethanol and water, adding the mixture into the mixed slurry prepared in the step (2), dispersing at a high speed, finally adding the mixture of the rheological assistant and water and 1/2 total amount of ammonia water, and uniformly dispersing at a medium and low speed to obtain a component A;

Comparing the effects of example 1 and comparative example 2 in table 1, in which the glass beads are not included in component a of comparative example 2 but are added in equal amounts to component B, it is understood that the glass beads in component a may serve to enhance the hardness of the paint film and provide some retroreflective effect by exposing the embedded glass beads after the surface layer is abraded. The particle size of the A-component microbeads is generally smaller than the wet film thickness for encapsulation purposes. The a component had no significant effect on the initial retroreflection strength (coefficient of retroreflection) of the reticle.

Comparative example 3

The water-based self-luminous reflective rain and night marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 35 parts of pure acrylic emulsion, 0.3 part of ammonia water and TAMOL pigment dispersant^TM9010.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, and aluminate-based luminescent material SrAl₂O₄:Eu²⁺17 parts of 350 meshes, 8 parts of titanium dioxide, 1000 meshes, 17 parts of triple superphosphate, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and rheological additive ACRYSOL^TM0.3 part of RM-12W, 2 parts of water and 15 parts of 30-mesh glass beads; the component B is high-reflection reflective beads, wherein 50 parts of 30-mesh solid glass beads, 50 parts of 28-mesh rainy night beads and a spreading area of 200g/m²。

(3) mixing the film-forming assistant, the defoamer of 1/2, ethanol and water, adding the mixture into the mixed slurry prepared in the step (2), dispersing at a high speed, finally adding the mixture of the rheological assistant and water, and the ammonia water and the glass beads in the total amount of 1/2, and uniformly dispersing at a medium and low speed to obtain a component A;

The particle size of the glass microbeads in the component a of comparative example 3 was larger than that of example 2. Comparing the effects of example 2 and comparative example 3 in table 1, it can be seen that the glass beads in the a component can function to enhance the hardness of the paint film and provide some retroreflective effect by exposing the embedded glass beads after the surface layer is abraded. The particle size of the A-component microbeads is generally smaller than the wet film thickness for encapsulation purposes. When the particle size of the micro-beads is too large, the bonding of the reflective glass beads is not facilitated when the component B is spread on the surface, and the surface adhesion and the reflective brightness (retroreflective coefficient) are reduced.

Comparative example 4

The water-based self-luminous reflective rain and night marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 30 parts of pure acrylic emulsion, 0.3 part of ammonia water and TAMOL pigment dispersant^TM9010.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, and aluminate base optical material SrAl₂O₄:Eu²⁺9 parts of 300 meshes, 10 parts of titanium dioxide powder, 1000 meshes, 27 parts of triple superphosphate, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and rheological additive ACRYSOL^TM0.3 part of RM-12W, 2 parts of water and 16 parts of 100-mesh glass beads; the component B is high-reflection reflective beads, wherein 90 parts of 100-mesh solid glass beads, 10 parts of 100-mesh rainy night beads and 300g/m of broadcast area²。

In comparison with example 1, the particle diameters of both the solid glass beads and the raindrop beads in the B component of comparative example 4 were too small. Comparing the effects of example 1 and comparative example 4 in table 1, it can be seen that the B component is reflective glass beads sprinkled on the surface of the undried a component, and when the size is smaller than the thickness of the wet film, most or all of the B component is embedded on the surface of the a component during the sprinkling process, reducing the overall reflective strength.

Comparative example 5

The water-based self-luminous reflective rain and night marking paint comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 30 parts of pure acrylic emulsion, 0.3 part of ammonia water and TAMOL pigment dispersant^TM9010.5 parts of wetting agent ECOSURF^TMBD 1090.3 parts, defoaming agent BYK 0240.4 parts, and aluminate base optical material SrAl₂O₄:Eu²⁺9 parts of 300 meshes, 10 parts of titanium dioxide powder, 1000 meshes, 27 parts of triple superphosphate, 2 parts of film forming additive Texanol, 2 parts of industrial ethanol and 2 parts of rheological additive ACRYSOL^TM0.3 part of RM-12W, 2 parts of water and 34 parts of 100-mesh glass beads; the component B is high-reflection reflective beads, wherein 90 parts of 100-mesh solid glass beads, 10 parts of 100-mesh rainy night beads and 300g/m of broadcast area²。

The amount of glass beads added in the component a of comparative example 5 was too large compared to example 1. Comparing the effects of example 1 and comparative example 5 in table 1, it can be seen that when the content of glass beads in component a is too high, the adhesion of the scattered beads on the surface of the paint film of component B is affected, so that the embedding depth is too shallow, the scattered beads can slide out of the coating after being rubbed by a tire in use, and the durability of light reflection is reduced.

The properties of the coating for the reticle and the reticle obtained in each of the above examples and comparative examples are shown in table 1 below.

TABLE 1 Properties of the reticle obtained in each of examples and comparative examples

The aqueous marking paint disclosed by the invention has excellent wear resistance due to the fact that the paint matrix has good mechanical strength and good adhesion to the high-reflection reflective beads partially embedded in the paint matrix, so that the prepared self-luminous reflective road marking still keeps a high retroreflective coefficient after the vehicle wheels are worn for a period of time, and has a relatively stable retroreflective effect under humid and rainfall conditions. The luminous effect of the D65 light source under dry and wet conditions (the surface of the marked line is wetted by water) about 10min after being excited for 1h is shown in figures 1 and 2.

As can be seen from the data in the table above, various performance parameters of the environment-friendly water-based road marking paint prepared by the invention are superior to national standards, and the water-based road marking paint prepared by the invention is an environment-friendly durable self-luminous reflective road marking paint.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.

Claims

1. The water-based self-luminous reflective rain night marking paint is characterized by comprising a component A and a component B, wherein the component A is a paint matrix, and the component B comprises high-reflective beads which are spread on the surface of the paint matrix;

the coating matrix comprises the following components in parts by mass:

2. the aqueous self-luminous reflective rain night marking paint as claimed in claim 1, wherein the scattering area of the high reflective beads is 150-500g/m²。

3. The aqueous self-luminous retroreflective rain night marking coating of claim 1 wherein the glass microspheres have a particle size smaller than the highly reflective retroreflective beads.

4. The aqueous self-luminous retroreflective rain night marking paint according to claim 3, wherein in the component A, the glass beads are solid glass beads with a particle size of 80-200 meshes.

5. The aqueous self-luminous reflective rain night marking coating as claimed in claim 3, wherein in the component B, the particle size of the high-reflective beads is 18-40 meshes, and the high-reflective beads are one or two of solid glass beads and rain night beads; preferably, the high-reflection light-reflecting beads are a mixture of solid glass beads and raindrop beads in a mass ratio of 1:0.1-1: 9.

6. The water-based self-luminous reflective rain and night marking coating as claimed in claim 1, wherein the water-based film-forming resin is one or more selected from styrene-acrylic emulsion and acrylic emulsion; preferably, the aqueous film-forming resin has a solids content of 30-60%.

7. The aqueous self-luminous retroreflective rain night marking paint according to claim 1, characterized in that the paint matrix further comprises 1-5 parts by mass of ethanol;

preferably, the coating matrix also comprises 5 to 30 parts by mass of long afterglow luminescent materials; preferably, the particle size of the long afterglow luminescent material is 150-5000 meshes; preferably, the long-afterglow luminescent material is selected from at least one of rare earth element activated alkaline earth aluminate-based long-afterglow luminescent materials and silicate-based long-afterglow luminescent materials;

preferably, the pigment filler comprises 5-10 parts of titanium dioxide and 20-40 parts of heavy calcium carbonate; preferably, the granularity of the titanium dioxide is 800-2500 meshes;

preferably, the auxiliary agent comprises one or more of a pH regulator, a dispersing agent, a wetting agent, a defoaming agent, a film-forming auxiliary agent and a rheological auxiliary agent;

preferably, the auxiliary agent comprises the following components in parts by mass:

8. the method for preparing the aqueous self-luminous retroreflective rain shade marking paint according to any one of claims 1 to 7, characterized by comprising the preparation of the A component:

9. A method for constructing a road marking, wherein the construction paint is the aqueous self-luminous retroreflective rain and night marking paint according to any one of claims 1 to 7, comprising:

applying the A component to a pavement to form a primer coat;

applying the B component to the primer coat before the primer coat is cured.

10. A road marking constructed by the method of claim 9.