CN113527979A - Anti-cracking durable hot-melt road marking coating and preparation method thereof - Google Patents
Anti-cracking durable hot-melt road marking coating and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- 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
- C09D157/00—Coating compositions based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D157/02—Copolymers of mineral oil hydrocarbons
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- 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
- C09D5/004—Reflecting paints; Signal paints
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention discloses an anti-cracking durable hot-melt road marking coating and a preparation method thereof, and the anti-cracking durable hot-melt road marking coating comprises the following raw material components: 10-30 parts of polybutene modified C5 petroleum resin, 1-3 parts of EVA hot melt adhesive, 1-5 parts of PE wax, 3-8 parts of titanium dioxide, 20-40 parts of calcium carbonate, 18-25 parts of glass beads, 1-8 parts of plasticizer, 10-30 parts of quartz sand and 2-8 parts of ZTA-VE high-elastic anti-cracking particles, wherein the parts are in parts by mass. The road marking paint has the advantages of good night light reflection, friction resistance, water resistance, acid and alkali resistance and good adhesion to roads, is suitable for the road surfaces of highways, expressways and urban roads, has better light reflection effect under the irradiation of automobile lamps at night than the common hot-melt marking paint, makes road markings more obvious, and is beneficial to improving the safety of driving at night; the coating has very high strength durability, weather resistance, drawing bonding strength and crack resistance, and the pavement is almost crack-free after one year of construction; the preparation method is simple and does not need special equipment.
Description
Technical Field
The invention relates to an anti-cracking durable hot-melt road marking coating and a preparation method thereof, belonging to the technical field of hot-melt road marking coatings.
Background
The road marking is a safety mark and also a special voice, and the traffic safety management department utilizes the road marking coating to divide the vehicle driving lane and channelized traffic, thereby achieving the purposes of strengthening traffic safety management, reducing vehicle and personal accidents and beautifying urban roads. The road traffic marking is mainly marked on the road surface and suffers from the impact and abrasion of vehicles due to the sun, rain, wind, snow and freezing, so that the road traffic marking has strict requirements on the performance. Firstly, the drying time is required to be short, and the operation is simple so as to reduce traffic interference; secondly, the reflective power is required to be strong, the color is bright, the reflective power is strong, and the visibility is good in the day and at night; thirdly, it should have skid resistance and wear resistance to ensure driving safety and service life.
Road markings are classified according to the type of coating used: normal temperature solvent type, heating solvent type and hot melt type marking. The hot melt type road marking paint is developed successfully in Europe in the middle of the 50 th century, and is used in China after the 90 th century. The reflective hot melt marking has the following characteristics: the coating thickness is about 1.5-2.5 mm, which is 10 times of that of a normal-temperature solvent-based marking, and the wear resistance is good; no solvent is volatilized; the construction drying speed is high (generally, the drying can be carried out within 3 minutes); has better night light reflecting performance. Therefore, the reflective hot melt marking is more suitable for urban main roads with large vehicle flow, high-grade roads and the like.
The prior patent document with the publication number of CN107573777A discloses a hot-melt type marking paint and a preparation method thereof, wherein a plurality of functional additives are selected from a middle layer paint, a middle layer paint and a surface layer paint in the paint for combined use, so that the wear resistance, the crack resistance, the corrosion resistance and the antifouling property of the paint are improved. However, the road marking paint needs to be paved in multiple layers during paving, and the construction is relatively complicated.
CN 101372598A discloses an energy-storage self-luminous road marking paint, which comprises the following raw materials in parts by weight: 15-16 parts of petroleum resin, 15-16 parts of quartz sand, 25-50 parts of calcium carbonate powder, 18-20 parts of glass beads, 0.8-1.2 parts of polyethylene wax, 0.8-1.5 parts of dioctyl phthalate, 1.0-1.2 parts of EVA hot melt adhesive, 2.0-4.0 parts of titanium dioxide and 2.0-10 parts of energy storage luminescent material. The road marking paint adopts commercially available general industrial raw materials, has low manufacturing cost and simple process, has good energy storage self-luminous and light reflecting functions, has good luminous identification performance under the conditions of no light and light, has high luminous intensity and long luminous time, can be widely applied to various grades of roads without illumination, such as expressways, town roads, villages and towns, mountain roads and the like, and greatly improves the traffic safety coefficient. However, the road marking paint has the obvious defects of poor wear resistance, short service life and insufficient adhesion between the paint and the road surface.
Disclosure of Invention
The invention provides an anti-cracking durable hot-melt road marking coating and a preparation method thereof, which have very high strength durability, weather resistance, drawing bonding strength and crack resistance on road performance so as to solve the problems of poor high-low temperature crack resistance, poor wear resistance, short service life, low bonding force with a road surface and the like of the existing road marking coating.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an anti-cracking durable hot-melt road marking coating comprises the following raw material components: 10-30 parts of polybutene modified C5 petroleum resin, 1-3 parts of EVA hot melt adhesive, 1-5 parts of PE wax, 3-8 parts of titanium dioxide, 20-40 parts of calcium carbonate, 18-25 parts of glass beads, 1-8 parts of plasticizer, 10-30 parts of quartz sand and 2-8 parts of ZTA-VE high-elastic anti-cracking particles, wherein the parts are in parts by mass.
The ZTA-VE high-elastic anti-cracking particles have good compatibility with other components, and the experimental indexes such as compressive strength, wear resistance, drawing bonding strength, weather resistance, crack resistance and the like are obviously improved by the synergistic promotion of the ZTA-VE high-elastic anti-cracking particles and polybutene modified C5 petroleum resin and the like, and the road surface has almost no cracks after one year of construction.
More preferably, the amount of ZTA-VE high-elasticity anti-cracking particles is 6-8 parts.
In order to further improve the comprehensive performance of the anti-cracking durable hot-melt road marking coating, the melt index of 2.16kg of ZTA-VE high-elastic anti-cracking particles at 135 ℃ is preferably more than or equal to 3g/10 min. The test standard is GT/T1033.
More preferably, the density of ZTA-VE high elastic crack resistant particles is 0.85-0.99 g/cm3The ash content is less than or equal to 1 percent, and the mass of single particles is less than or equal to 0.015 g. The test standard of the density is GT/T3682; the ash test standard is T0614.
In order to improve the processability and promote the performances of light reflection, water resistance, acid and alkali resistance and the like, the number average molecular weight of the PE wax is 3000-5000, the rotational viscosity is 2000-2500 mpa.s, and the softening point is more than 100 ℃.
In order to further promote the improvement of the drawing bonding strength, the crack resistance and the like, the softening point of the polyisobutene modified C5 petroleum resin is 98-102 ℃; the melt viscosity is 190 to 195 mPa.s. The test standard of the softening point is GB/T4507-1999; the test standard for melt viscosity is astm d 3236; the ash test standard is GB 2895.
In order to further improve the strength and the dispersibility of the product, the particle size of the quartz sand is 40-170 meshes.
In order to further improve the strength of the product, the particle size of the calcium carbonate is 300-400 meshes.
In order to further improve the retroreflection coefficient of the product, the particle size of the glass beads is 150-600 um, and the rounding rate is 85-90%.
The preparation method of the anti-cracking durable hot-melt road marking coating comprises the steps of sequentially feeding calcium carbonate, PE wax, EVA hot melt adhesive, ZTA-VE high-elasticity anti-cracking particles, titanium dioxide, polybutene modified C5 petroleum resin, quartz sand, plasticizer and glass beads, stirring for 1-2 minutes after feeding of each component is finished, feeding the next component until feeding is finished, and continuously stirring for 3-5 minutes after feeding is finished to obtain the anti-cracking durable hot-melt road marking coating. And finally, packaging and bagging.
The preparation method is simple and does not need special equipment.
The prior art is referred to in the art for techniques not mentioned in the present invention.
The anti-cracking durable hot-melt road marking coating has the advantages of good night light reflection, friction resistance, water resistance, acid and alkali resistance and good adhesion to a road surface, is suitable for the road surfaces of highways, expressways and urban roads, has better light reflection effect under the irradiation of automobile lamps at night than the common hot-melt marking coating, makes road markings more obvious, and is beneficial to improving the safety of driving at night; the high-strength and high-durability concrete has high strength, durability, weather resistance, drawing bonding strength and crack resistance, has strong bonding force with the pavement, almost has no crack on the pavement after one year of construction, and obviously prolongs the service life; the one-time laying is not required, and the multi-layer laying is not required, so that the construction is simple; the preparation method is simple and does not need special equipment.
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
In each example, polybutene modified C5 petroleum resin, type: TX-1200R, softening point of 100 ℃, melt viscosity of 19,2mPa.s and ash content of 0.003 wt%, which is purchased from Puyang Shang chemical Co., Ltd; EVA hot melt adhesive, model: EA28150, melt index D1238150 g/10min, melting point 70 deg.C, available from Puyang Shang chemical Co., Ltd; PE wax, type: ZS102A, number average molecular weight 3420, rotary viscosity 2000-2500 mpa.s, softening point 110 ℃, purchased from Puyang Shang chemical Co., Ltd; titanium dioxide, type: r6618(T), TiO2The product has the content of 94.4 percent and the brightness value of more than or equal to 95 percent, and is purchased from Puyang Shanggang chemical industry Co., Ltd; the calcium carbonate powder is 325 meshes and purchased from Tianhe Caisha GmbH in Nanzhao county; the specification of the glass beads is 150-600 um, the rounding rate is 87%, and the glass beads are purchased from glass beads Limited responsibility company in North river Chi; plasticizer, type: ZS101A, light yellow liquid, chroma (Pt-Co) 65, water content 0.048%, lightning 205 ℃, density (rho 20)0.953g/cm3Acidity (in terms of phthalic acid) 0.04%, viscosity (20 ℃) mPas, commercially available from Puyang Shang chemical Co., Ltd; the quartz sand is 40-170 meshes in specification and purchased from Tianhe color stone sand Co., Ltd in Nanzhao county; the ZTA-VE high-elastic anti-cracking particles have uniform and full particles, the mass of single particles is less than or equal to 0.015g, and the density is 0.85-0.99 g/cm3The melt index (135 ℃, 2.16kg) is more than or equal to 3g/10min, and the ash content is less than or equal to 1 wt%Purchased from Beijing Zhongtianlu science and technology Co., Ltd;
example 1
Weighing 10kg of polybutene modified C5 petroleum resin, 1kg of EVA hot melt adhesive, 2kg of PE wax, 5kg of titanium dioxide, 40kg of calcium carbonate, 18kg of glass beads, 2kg of plasticizer, 17kg of quartz sand and 5kg of ZTA-VE high-elastic anti-cracking particles;
sequentially feeding calcium carbonate, PE wax, EVA hot melt adhesive, ZTA-VE high-elastic anti-cracking particles, titanium dioxide, polybutene modified C5 petroleum resin, quartz sand, plasticizer and glass beads, stirring for 1 minute after feeding of each component is finished, feeding the next component until feeding is finished, and continuously stirring for 5 minutes after feeding is finished to obtain the durable hot melt road marking coating.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 42MPa, the wear resistance index is 23mg, and the drawing bonding strength is 6.9 MPa.
Example 2
Weighing 20kg of polybutene modified C5 petroleum resin, 2kg of EVA hot melt adhesive, 2kg of PE wax, 7kg of titanium dioxide, 30kg of calcium carbonate, 18kg of glass beads, 1kg of plasticizer, 15kg of quartz sand and 5kg of ZTA-VE high-elastic anti-cracking particles, and uniformly mixing according to the method of example 1 to obtain the anti-cracking durable hot melt road marking paint.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 45MPa, the wear resistance index is 23mg, and the drawing bonding strength is 6.7 MPa.
Example 3
Weighing 25kg of polybutene modified C5 petroleum resin, 1kg of EVA hot melt adhesive, 3kg of PE wax, 5kg of titanium dioxide, 20kg of calcium carbonate, 18kg of glass beads, 3kg of plasticizer, 20kg of quartz sand and 5kg of ZTA-VE high-elastic anti-cracking particles, and uniformly mixing according to the method of the embodiment 1 to obtain the anti-cracking durable hot melt road marking paint.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 43MPa, the wear resistance index is 22mg, and the drawing bonding strength is 6.9 MPa.
Example 4
Weighing 15kg of polybutene modified C5 petroleum resin, 3kg of EVA hot melt adhesive, 3kg of PE wax, 5kg of titanium dioxide, 30kg of calcium carbonate, 25kg of glass beads, 2kg of plasticizer, 10kg of quartz sand and 7kg of ZTA-VE high-elastic anti-cracking particles, and uniformly mixing according to the method of the embodiment 1 to obtain the anti-cracking durable hot melt road marking paint.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 47MPa, the wear resistance index is 21mg, and the drawing bonding strength is 7.5 MPa.
Example 5
Weighing 20kg of polybutene modified C5 petroleum resin, 3kg of EVA hot melt adhesive, 2kg of PE wax, 5kg of titanium dioxide, 16kg of calcium carbonate, 25kg of glass beads, 3kg of plasticizer, 18kg of quartz sand and 7kg of ZTA-VE high-elastic anti-cracking particles, and uniformly mixing according to the method of the embodiment 1 to obtain the anti-cracking durable hot melt road marking paint.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 47MPa, the wear resistance index is 21mg, and the drawing bonding strength is 7.4 MPa.
Example 6
Weighing 15kg of polybutene modified C5 petroleum resin, 3kg of EVA hot melt adhesive, 5kg of PE wax, 5kg of titanium dioxide, 25kg of calcium carbonate, 25kg of glass beads, 5kg of plasticizer, 10kg of quartz sand and 7kg of ZTA-VE high-elastic anti-cracking particles, and uniformly mixing according to the method of the embodiment 1 to obtain the anti-cracking hot melt road marking paint.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 48MPa, the wear resistance index is 20mg, and the drawing bonding strength is 7.5 MPa.
Comparative example 1
Weighing 25kg of polybutene modified C5 petroleum resin, 1kg of EVA hot melt adhesive, 3kg of PE wax, 5kg of titanium dioxide, 20kg of calcium carbonate, 18kg of glass beads, 3kg of plasticizer and 25kg of quartz sand, and uniformly mixing (the charging sequence and the process refer to example 1, but ZTA-VE high-elastic anti-cracking particles are not added), thereby obtaining the common hot melt road marking paint.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 26MPa, the wear resistance index is 39mg, and the drawing bonding strength is 4.6 MPa.
Comparative example 2
Weighing 20kg of polybutene modified C5 petroleum resin, 3kg of EVA hot melt adhesive, 5kg of PE wax, 5kg of titanium dioxide, 25kg of calcium carbonate, 25kg of glass beads, 5kg of plasticizer and 12kg of quartz sand, and uniformly mixing (the charging sequence and the process refer to example 1, but ZTA-VE high-elastic anti-cracking particles are not added), thereby obtaining the common hot melt road marking paint.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 28MPa, the wear resistance index is 40mg, and the drawing bonding strength is 4.7 MPa.
Comparative example 3
Weighing 10kg of polybutene modified C5 petroleum resin, 1kg of EVA hot melt adhesive, 2kg of PE wax, 5kg of titanium dioxide, 40kg of calcium carbonate, 18kg of glass beads, 2kg of plasticizer and 22kg of quartz sand, and uniformly mixing (the charging sequence and the process refer to example 1, but ZTA-VE high-elastic anti-cracking particles are not added), thereby obtaining the common hot melt road marking paint.
And (3) detecting the performance of the coating: the temperature is kept at 25 ℃ for 4h, the temperature is kept at 45 ℃ for 4h, the cycle is one, no crack is generated after three continuous cycles, and the room temperature test shows that the compressive strength of the coating is 26MPa, the wear resistance index is 45mg, and the drawing bonding strength is 4.3 MPa.
TABLE 1 Performance tables obtained in the examples
The anti-cracking durable hot-melt reflective road marking paint provided by the invention has the advantages of good night reflectivity, friction resistance, water resistance, acid and alkali resistance, good adhesion to road surfaces and good anti-cracking performance, is suitable for the road surfaces of highways, expressways and urban roads, has a better reflective effect under the irradiation of automobile lamps at night than that of the common hot-melt marking paint, makes the road marking more obvious, and is beneficial to improving the safety of driving at night.
Compared with the preparation method of the common hot-melt marking paint in the prior art, under the same condition, the compression strength, the wear resistance, the drawing bonding strength and the crack resistance of the hot-melt reflective marking paint are obviously improved after the ZTA-VE high-elastic crack-resistant particles are added into the anti-crack durable hot-melt reflective marking paint.
By comparing the examples 1, 2 and 3 with the examples 4, 5 and 6, it can be seen that the drawing bonding strength of the crack-resistant durable hot-melt reflective road marking paint is obviously improved along with the addition of the ZTA-VE high-elasticity crack-resistant particles from 5kg to 7 kg.
As can be seen from the comparative examples and comparative examples, after half a year, the anti-cracking durable hot-melt reflective road marking paint of the invention has no cracks, but the ordinary marking paint has partial cracks, and after one year, the anti-cracking durable hot-melt reflective road marking paint of the invention has no cracks or only few cracks, but the ordinary hot-melt marking paint has a large number of cracks. Therefore, the anti-cracking durable hot-melt reflective road marking coating provided by the invention has excellent anti-cracking performance.
Claims (10)
1. An anti-cracking durable hot-melt road marking paint is characterized in that: the raw material components comprise: 10-30 parts of polybutene modified C5 petroleum resin, 1-3 parts of EVA hot melt adhesive, 1-5 parts of PE wax, 3-8 parts of titanium dioxide, 20-40 parts of calcium carbonate, 18-25 parts of glass beads, 1-8 parts of plasticizer, 10-30 parts of quartz sand and 2-8 parts of ZTA-VE high-elastic anti-cracking particles, wherein the parts are in parts by mass.
2. The crack resistant durable hot melt road marking paint of claim 1, wherein: the ZTA-VE high elastic crack resistant particles have a melt index of more than or equal to 3g/10min at 135 ℃ under 2.16 kg.
3. The crack-resistant durable hot melt road marking paint of claim 1 or 2, wherein: the density of ZTA-VE high-elastic anti-cracking particles is 0.85-0.99 g/cm3The ash content is less than or equal to 1 percent, and the mass of single particles is less than or equal to 0.015 g.
4. The crack-resistant durable hot melt road marking paint of claim 1 or 2, wherein: the PE wax has a number average molecular weight of 3000-5000, a rotational viscosity of 2000-2500 mpa.s, and a softening point of 100 ℃ or higher.
5. The crack-resistant durable hot melt road marking paint of claim 1 or 2, wherein: the softening point of the polybutene modified C5 petroleum resin is 98-102 ℃; the melt viscosity is 190 to 195 mPa.s.
6. The crack resistant durable hot melt road marking paint of claim 1 or 2, wherein: the particle size of the quartz sand is 40-170 meshes.
7. The crack-resistant durable hot-melt road marking paint according to claim 1 or 2, characterized in that: the particle size of the calcium carbonate is 300-400 meshes.
8. The crack-resistant durable hot melt road marking paint of claim 1 or 2, wherein: the glass beads have a particle diameter of 150 to 600 μm and a rounding ratio of 85 to 90%.
9. The crack-resistant durable hot melt road marking paint of claim 1 or 2, wherein: 6-8 parts of ZTA-VE high-elastic anti-cracking particles.
10. The method of preparing the crack-resistant durable hot-melt road marking paint according to any one of claims 1 to 9, wherein: sequentially feeding calcium carbonate, PE wax, EVA hot melt adhesive, ZTA-VE high-elastic anti-cracking particles, titanium dioxide, polybutene modified C5 petroleum resin, quartz sand, plasticizer and glass beads, stirring for 1-2 minutes after feeding of each component is finished, feeding the next component until feeding is finished, and continuously stirring for 3-5 minutes after feeding is finished to obtain the durable hot melt road marking coating.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114350224A (en) * | 2021-12-31 | 2022-04-15 | 朱子桥 | Preparation method of luminous hot-melt coating for road marking |
| CN117304807A (en) * | 2023-09-21 | 2023-12-29 | 安徽安晟交通设施科技有限公司 | Environment-friendly weather-resistant anti-fouling road marking paint and preparation method thereof |
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Application publication date: 20211022 |