CN111500145A - Wear-resistant hot-melt marking paint and preparation method thereof - Google Patents
Wear-resistant hot-melt marking paint and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a wear-resistant hot-melt marking paint and a preparation method thereof, belonging to the technical field of marking paints. The wear-resistant hot-melt marking paint comprises the following components in parts by weight: 14-17 parts of carbon five resin, 0.8-1.5 parts of paraffin, 0.5-1.5 parts of EVA, 0.3-1.2 parts of white oil, 21-32 parts of quartz sand and 25-38 parts of heavy calcium powder. The preparation method of the wear-resistant hot-melt marking paint comprises the following steps: 1) uniformly mixing carbon five resin and EVA to obtain a mixed light material, and then uniformly mixing the mixed light material with quartz sand and heavy calcium powder to obtain a premix; 2) uniformly mixing the premix prepared in the step 1) with paraffin and white oil to obtain the product. The marking prepared by the wear-resistant hot-melt marking coating disclosed by the invention is very good in wear resistance, higher in adhesive force and compressive strength, short in drying time, high in construction efficiency, good in weather resistance, strong in environmental adaptability and long in service life.
Description
Technical Field
The invention relates to the technical field of marking coatings, in particular to a wear-resistant hot-melt marking coating and a preparation method thereof.
Background
With the development of economic society and more developed traffic, road marking has been widely applied to various highways and airport environments, is an important component of traffic travel and also is an important guarantee of traffic safety. The road traffic marking needs to withstand different severe environments such as wind, sun, rain, high temperature, low temperature, high humidity, drying and the like, and also needs to withstand rolling abrasion of wheels.
The raw materials of the marking paint usually comprise oleophilic substances such as resins and waxes and hydrophilic substances such as inorganic fillers, and for the hot-melt marking paint, the compatibility of the oleophilic substances and the hydrophilic substances is poor when the paint is heated and melted, so that the raw materials are not uniformly dispersed when the paint is heated and melted, and the problems of easy coking, poor wear resistance, short service life and the like of a final paint layer are caused.
The Chinese patent with application publication number CN104312251A discloses a preparation method of an energy-saving and environment-friendly hot-melt road marking coating, which comprises the following steps: 1) weighing 120 parts of 100-one coarse whiting powder, 130 parts of 125-one coarse quartz sand of 200 meshes, 3-4 parts of titanium dioxide and 2.5-3.5 parts of PE wax according to the mass ratio, and uniformly stirring; 2) adding 30-25 parts of C5 resin, EVA resin and epoxy resin into the material obtained in the step 1), wherein the mass ratio of the C5 resin to the EVA resin to the epoxy resin is 7: 2: 1; 3) adding 3-6 parts of the composite flatting agent into the material obtained in the step 2), and uniformly stirring to obtain a mixture; 4) heating the mixture obtained in the step 3) for 3-6min, stirring continuously, pouring out after the mixture is changed from powder to liquid, and cooling for 2-3min at room temperature to obtain the product. The raw materials of the marking paint adopt the combination of a plurality of resins and a composite leveling agent, thereby improving the property of the paint and improving the compatibility of lipophilic substances and hydrophilic substances. However, in the raw materials of the paint for the marking, the consumption of resin is small, so that the inorganic filler is not firmly bonded, the wear resistance of the marking is poor, and when the paint is used on the surface of a road, the marking is easy to wear after long-time use, the integrity of the marking is affected, and the use effect is reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the first object of the invention is to provide a wear-resistant hot-melt marking paint, and the marking made of the marking paint has very good wear resistance.
The second purpose of the invention is to provide a wear-resistant hot-melt marking paint, and the marking paint prepared by the method has uniform texture and stable performance.
In order to achieve the first object, the invention provides the following technical scheme:
the wear-resistant hot-melt marking paint comprises the following components in parts by weight: 14-17 parts of carbon five resin, 0.8-1.5 parts of paraffin, 0.5-1.5 parts of EVA, 0.3-1.2 parts of white oil, 21-32 parts of quartz sand and 25-38 parts of heavy calcium powder.
By adopting the technical scheme, the marking paint disclosed by the invention adopts more carbon five resin, namely carbon five petroleum resin, and the main chain link of the marking paint is of an aliphatic structure, so that the marking paint has the characteristics of good miscibility, water resistance, ethanol resistance, chemical corrosion resistance and the like, and has the characteristics of good viscosity regulation performance, high thermal stability and the like, and the marking paint has good fluidity during marking construction and good stability at a later stage. In the marking paint, the proportion of the resin, the quartz sand and the heavy calcium powder is reasonable, and after the resin, the inorganic filler can be fully wrapped and bonded by the resin after being heated and melted, so that the bonding strength between inorganic filler particles is improved, the manufactured marking is not easy to damage under the action of external force, the bonding strength and the wear resistance of the marking are improved, and the service life of the marking is prolonged. The components of the marking paint also comprise paraffin and white oil, so that the fluidity of the resin after being heated and melted is fully promoted, the components play a full lubricating role, the dispersion uniformity of the resin and the inorganic filler is further improved, the plasticity and the toughness of the marking material are increased, and the bonding strength and the wear resistance of the marking are further improved.
The invention is further configured to: the wear-resistant hot-melt marking paint comprises the following components in parts by weight: 15-17 parts of carbon five resin, 0.8-1.2 parts of paraffin, 1-1.5 parts of EVA (ethylene vinyl acetate), 0.3-1.0 part of white oil, 22-32 parts of quartz sand and 25-38 parts of heavy calcium powder.
By adopting the technical scheme, the proportion of the components is further optimized, so that the components are better matched with each other to play respective roles. The proportion of the carbon five resin is properly improved, the proportion of the paraffin is properly reduced, the overall performance of the marking paint can be improved by fully utilizing the better pressure resistance, wear resistance and pollution resistance of the carbon five petroleum resin, and the quick solidification of the marking is favorably improved.
The invention is further configured to: the wear-resistant hot-melt marking paint also comprises 1.2-2 parts by weight of rubber elastomer.
Through adopting above-mentioned technical scheme, rubber elastomer can improve the elasticity of marking by a wide margin after adding as a thermosetting elastomer, when receiving outside great stress effect, can take place the deformation of certain degree, reduces the impaired degree of marking when receiving the impact, and then has improved the wearability of marking, has prolonged the life of marking.
The invention is further configured to: the wear-resistant hot-melt marking paint also comprises 1-2 parts by weight of polyurethane elastomer.
By adopting the technical scheme, the polyurethane elastomer is added on the basis of the rubber elastomer, so that the characteristic of high wear resistance of polyurethane can be fully exerted, and the wear resistance of the marked line is further improved. In addition, the polyurethane elastomer is a thermoplastic elastomer, so that the marking paint is convenient to adapt to various processing modes.
The invention is further configured to: the wear-resistant hot-melt marking paint also comprises 10-15 parts by weight of polyphenyl particles.
By adopting the technical scheme, after the polyphenyl particles are added, the polyphenyl particles are uniformly dispersed in each component of the marking paint, the adaptability of the finally prepared marking to temperature can be improved, the marking can not be seriously cracked at extremely high temperature and extremely low temperature, and the integral performance of the marking is further kept stable.
The invention is further configured to: the wear-resistant hot-melt marking paint also comprises 2.2-3.5 parts by weight of bentonite.
By adopting the technical scheme, the bentonite has a porous structure and good adsorption performance, and is beneficial to improving the bonding compatibility of the inorganic filler and the resin in the marking paint, so that the inorganic filler and the resin are dispersed more uniformly.
The invention is further configured to: the wear-resistant hot-melt marking paint also comprises 0.2-0.3 part by weight of reinforcing fiber, wherein the reinforcing fiber is at least one of polypropylene fiber, carbon fiber and glass fiber.
By adopting the technical scheme, the strength and the toughness of the marked line can be greatly improved after the reinforcing fibers are added, and the wear resistance of the marked line is further improved. The addition of the reinforcing fibers can also fix other inorganic filler particles, so that the probability of cracks generated when the marking is impacted by external force is reduced, and the service life of the marking is further prolonged.
The invention is further configured to: the reinforcing fiber is composed of at least one of carbon fiber and glass fiber and polypropylene fiber in a mass ratio of 1: 1-3.
By adopting the technical scheme, the reinforcing fibers comprise the organic fiber polypropylene fibers and also comprise the inorganic fiber carbon fibers or glass fibers, so that on one hand, the compatibility of the reinforcing fibers with other organic components and inorganic components can be improved, the reinforcing fibers are more uniformly dispersed in the marking paint, and on the other hand, the properties of different types of fibers can be fully utilized, and the strength and the toughness of the marking are further improved.
In order to achieve the second object, the invention provides the following technical scheme:
the preparation method of the wear-resistant hot-melt marking paint comprises the following steps:
1) uniformly mixing carbon five resin and EVA to obtain a mixed light material, and then uniformly mixing the mixed light material with quartz sand and heavy calcium powder to obtain a premix;
2) uniformly mixing the premix prepared in the step 1) with paraffin and white oil to obtain the product.
By adopting the technical scheme, when the marking paint is prepared, the resin is mixed firstly to obtain the mixed light material, and then the mixed light material is mixed with the inorganic filler, so that the problem that the different resin types cannot be uniformly dispersed due to the influence of the inorganic filler with larger particles when being mixed with the inorganic filler can be reduced. The mixed light material and the inorganic filler are mixed uniformly and then mixed with the white oil, and the wettability and the viscosity of the liquid white oil can be utilized to improve the mixing uniformity of various components.
The invention is further configured to: in the step 1), the quartz sand is dried before mixing until the moisture mass fraction is not more than 5%, and the coarse whiting powder is dried before mixing until the moisture mass fraction is not more than 0.5%.
By adopting the technical scheme, the quartz sand and the coarse whiting powder are dried and then mixed, so that the phenomenon that the inorganic filler is agglomerated to reduce the dispersion uniformity of the inorganic filler is avoided, and the influence of moisture in the material on the dispersion of the subsequently added white oil is favorably reduced.
In conclusion, the invention has the following beneficial effects:
firstly, the wear-resistant hot-melt marking paint provided by the invention has the advantages that the proportion of resin and inorganic filler is reasonable, the prepared marking has very good wear resistance, and meanwhile, the wear-resistant hot-melt marking paint has higher adhesive force and compressive strength, and the service life of the marking is greatly prolonged. In addition, the wear-resistant hot-melt marking paint disclosed by the invention is short in drying time, high in construction efficiency and has obvious market competitive advantages.
Secondly, the wear-resistant hot-melt marking paint disclosed by the invention has good water resistance, alkali resistance and weather resistance, can adapt to various different severe environments, and prolongs the service life of the marking.
Thirdly, in the preparation method of the wear-resistant hot-melt marking paint, the resin is mixed to obtain the mixed light material, then the mixed light material is mixed with the inorganic filler, so that the dispersion uniformity of the resin and the inorganic filler can be improved, and then the uniformly mixed material is mixed with the white oil, so that the finally prepared marking paint has uniform texture and good stability.
Detailed Description
The present invention will be described in further detail with reference to examples.
The wear-resistant hot-melt marking paint comprises the following components in parts by weight: 14-17 parts of carbon five resin, 0.8-1.5 parts of paraffin, 0.5-1.5 parts of EVA, 0.3-1.2 parts of white oil, 21-32 parts of quartz sand and 25-38 parts of heavy calcium powder.
The grain size of the quartz sand is 80-325 meshes. Preferably, the particle size of the quartz sand is 140-270 meshes. Further preferably, the particle size of the quartz sand is 200-270 meshes. More preferably, the quartz sand has a particle size of 200 mesh. The mud content of the quartz sand is not more than 0.2 percent. Further preferably, the content of the mud in the silica sand is not more than 0.1%.
The particle size of the coarse whiting powder is 800-1000 meshes. The mass fraction of calcium carbonate in the coarse whiting powder is not less than 95 percent. Preferably, the coarse whiting powder has a particle size of 1000 mesh.
The wear-resistant hot-melt marking paint also comprises 1.2-2 parts by weight of rubber elastomer. The rubber elastic body is at least one of styrene-butadiene rubber, chloroprene rubber and ethylene propylene rubber. More preferably, the rubber elastomer is composed of at least one of styrene-butadiene rubber and chloroprene rubber and ethylene propylene rubber in a mass ratio of 2-3: 1. The rubber elastic body is rubber particles, and the particle size of the rubber particles is 40-60 meshes. Preferably, the rubber particles have a particle size of 40 mesh.
The wear-resistant hot-melt marking paint also comprises 1-2 parts by weight of polyurethane elastomer. The polyurethane elastomer is polyurethane particles, and the particle size of the polyurethane particles is 60-80 meshes. Preferably, the particle size of the polyurethane particles is 80 mesh.
The wear-resistant hot-melt marking paint also comprises 10-15 parts by weight of polyphenyl granules. The particle size of the polyphenyl granules is 35-50 meshes. Preferably, the particle size of the polyphenyl particles is 50 meshes.
The wear-resistant hot-melt marking paint also comprises 2.2 to 3.5 weight parts of bentonite. The particle size of the bentonite is 200-325 meshes. Preferably, the particle size of the bentonite is 325 mesh.
The wear-resistant hot-melt marking paint also comprises 0.2 to 0.3 weight part of reinforcing fiber; the reinforcing fiber is at least one of polypropylene fiber, carbon fiber and glass fiber. The length of the reinforcing fiber is 2-5 mm. Preferably, the length of the reinforcing fibers is 2 mm. More preferably, the reinforcing fiber is formed by mixing at least one of carbon fiber and glass fiber with polypropylene fiber in a mass ratio of 1: 1-3. Preferably, the reinforcing fiber is formed by mixing carbon fiber, glass fiber and polypropylene fiber in a mass ratio of 0.3-0.5:0.5-0.7: 1-3.
The wear-resistant hot melt marking paint also comprises 0.5 to 2 parts by weight of DOP (dioctyl phthalate). Further, the wear-resistant hot melt marking paint also comprises 1-2 parts by weight of polyethylene wax. Furthermore, the wear-resistant hot-melt marking paint also comprises 0.5-1 part by weight of dry powder mildew preventive. The dry powder mildew preventive can be selected from commercially available dry powder mildew preventives. Furthermore, the wear-resistant hot-melt marking paint also comprises 0.3 to 0.8 weight part of organosilicon water repellent. The organic silicon water repellent is polymethylhydrosiloxane water repellent. The wear-resistant hot-melt marking paint also comprises 1.5-2 parts by weight of diphenylmethane diisocyanate. The wear-resistant hot-melt marking paint also comprises 0.5-6kg of titanium dioxide.
The preparation method of the wear-resistant hot-melt marking paint comprises the following steps:
1) uniformly mixing carbon five resin and EVA to obtain a mixed light material, and then uniformly mixing the mixed light material with quartz sand and heavy calcium powder to obtain a premix;
2) uniformly mixing the premix prepared in the step 1) with paraffin and white oil to obtain the product.
In the step 1), the carbon five resin and the EVA are uniformly mixed and stirred for 5-10 min.
In the step 1), the mixed light material is uniformly mixed with the quartz sand and the heavy calcium powder and stirred for 2-3 min.
And step 2), uniformly mixing, namely stirring for 20-30 min. The temperature of the step 2) when the mixture is uniformly mixed is 40-60 ℃.
And (2) when the carbon five resin and the EVA are mixed in the step 1), adding polyphenyl particles and rubber elastomer particles to prepare the mixed light material. Further, when the carbon five resin and the EVA are mixed in the step 1), the polyurethane elastomer and the organic silicon water repellent are added to prepare the mixed light material.
And 2) adding DOP when the premix is uniformly mixed with the paraffin and the white oil. And 2) adding the fiber mixture and polyethylene wax when the premix is mixed with the paraffin and the white oil. In the step 2), when the premix is uniformly mixed with the paraffin and the white oil, the diphenylmethane diisocyanate and the dry powder mildew preventive are also added. The fiber mixture is obtained by uniformly mixing the reinforced fibers and part of white oil. Part of the white oil is a part of the white oil in the components of the wear-resistant hot-melt marking paint of the present invention, and preferably, the white oil is mixed with the reinforcing fiber in an amount of 0.1 to 0.3 parts by weight. Preferably, the amount of white oil mixed with the reinforcing fibers is 0.2 parts by weight.
The quartz sand is dried before mixing until the water content is not more than 5 percent by mass. Further preferably, the mass fraction of water in the dried quartz sand is not more than 1%. The quartz sand is dried for 15-20min at 50-60 ℃.
Before mixing, the coarse whiting powder is dried until the moisture mass fraction is not more than 0.5%, and preferably, the coarse whiting powder is dried until the moisture mass fraction is not more than 0.2%. Further preferably, the heavy calcium powder is dried until the moisture mass fraction is not more than 0.1%. The heavy calcium powder is dried at 40-50 deg.C for 30-40 min.
Example 1
The wear-resistant hot-melt marking paint of the embodiment comprises the following components in parts by weight: 14.0kg of carbon five resin, 1.5kg of paraffin, 0.5kg of EVA, 1.2kg of white oil, 21.0kg of quartz sand, 36.0kg of heavy calcium powder and 6kg of titanium dioxide.
Wherein the particle size of the quartz sand is 100 meshes, and the particle size of the coarse whiting powder is 800 meshes.
The preparation method of the wear-resistant hot-melt marking paint comprises the following steps:
1) drying the quartz sand at 50 ℃ for 20min to obtain dry quartz sand; drying the coarse whiting powder at 40 deg.C for 40min to obtain dry coarse whiting powder.
2) Adding the carbon five resin and the EVA into a stirrer, stirring for 5min, uniformly mixing to obtain a mixed light material, and then conveying the mixed light material into a mixing bin through a lifting machine; then, feeding the dry quartz sand into a mixing bin through a lifter; then the dry weight calcium powder is sent into a mixing bin through a lifter and stirred for 2min in the mixing bin.
3) Transferring the materials in the mixing bin to a homogenizing bin, adding paraffin, white oil and titanium dioxide into the homogenizing bin, heating to 50 deg.C, stirring for 25min, discharging, and packaging.
Example 2
The wear-resistant hot-melt marking paint of the embodiment comprises the following components in parts by weight: 15.0kg of carbon five resin, 1.0kg of paraffin, 1.0kg of EVA, 1.0kg of white oil, 22.0kg of quartz sand, 35.0kg of heavy calcium powder, 10.0kg of polyphenyl particles, 1.8kg of rubber elastomer, 0.5kg of DOP, 0.2kg of reinforcing fiber and 5kg of titanium dioxide.
Wherein the particle size of the quartz sand is 100 meshes, and the particle size of the coarse whiting powder is 800 meshes. The rubber elastomer is styrene butadiene rubber. The particle size of the rubber elastic body is 60 meshes. The reinforced fiber is polypropylene fiber with the length of 2 mm.
The preparation method of the wear-resistant hot-melt marking paint comprises the following steps:
1) drying the quartz sand at 60 ℃ for 15min to obtain dry quartz sand; drying the coarse whiting powder at 50 ℃ for 30min to obtain dry coarse whiting powder.
2) Adding carbon five resin, EVA, polyphenyl granules and rubber elastomer granules into a stirrer, stirring for 10min, uniformly mixing to obtain mixed light materials, and then conveying the mixed light materials into a mixing bin through a lifting machine; then, feeding the dry quartz sand into a mixing bin through a lifter; then the dry weight calcium powder is sent into a mixing bin through a lifter and stirred for 3min in the mixing bin.
3) Uniformly mixing the reinforced fibers with 0.1kg of white oil to obtain a fiber mixture;
transferring the materials in the mixing bin to a homogenizing bin, adding the fiber mixture, paraffin, DOP, titanium dioxide and the rest white oil into the homogenizing bin, heating to 60 ℃, stirring for 20min, discharging and packaging to obtain the finished product.
Example 3
The wear-resistant hot-melt marking paint of the embodiment comprises the following components in parts by weight: 17.0kg of carbon five resin, 0.8kg of paraffin, 1.5kg of EVA1, 0.8kg of white oil, 25.0kg of quartz sand, 35.0kg of heavy calcium powder, 15.0kg of polyphenyl particles, 2.0kg of rubber elastomer, 1.0kg of polyurethane elastomer, 1.0kg of DOP, 1.0kg of polyethylene wax, 0.3kg of reinforcing fiber and 1kg of titanium pigment.
Wherein the particle size of the quartz sand is 100 meshes, and the particle size of the coarse whiting powder is 800 meshes. The rubber elastic body is chloroprene rubber. The particle size of the rubber elastic body is 60 meshes. The reinforcing fiber is glass fiber and has a length of 2 mm.
The preparation method of the wear-resistant hot-melt marking paint comprises the following steps:
1) drying the quartz sand at 55 ℃ for 18min to obtain dry quartz sand; drying the coarse whiting powder at 45 ℃ for 35min to obtain dry coarse whiting powder.
2) Adding carbon five resin, EVA, polyphenyl particles, rubber elastomer particles and polyurethane elastomer particles into a stirrer, stirring for 8min, uniformly mixing to obtain mixed light materials, and then conveying the mixed light materials into a mixing bin through a lifter; then, feeding the dry quartz sand into a mixing bin through a lifter; then the dry weight calcium powder is sent into a mixing bin through a lifter and stirred for 2min in the mixing bin.
3) Uniformly mixing the reinforced fibers with 0.1kg of white oil to obtain a fiber mixture;
transferring the materials in the mixing bin to a homogenizing bin, adding the fiber mixture, paraffin, DOP, polyethylene wax, titanium dioxide and the rest white oil into the homogenizing bin, heating to 40 ℃, stirring for 30min, discharging and packaging to obtain the composite material.
Example 4
The wear-resistant hot-melt marking paint of the embodiment comprises the following components in parts by weight: 16.0kg of carbon five resin, 1.2kg of paraffin, 1.2kg of EVA1.2kg of white oil, 28.0kg of quartz sand, 28.0kg of heavy calcium powder, 12.0kg of polyphenyl particles, 1.5kg of rubber elastomer, 2.0kg of polyurethane elastomer, 2.0kg of DOP, 2.0kg of polyethylene wax, 2.5kg of bentonite, 0.3kg of reinforcing fiber, 1.5kg of diphenylmethane diisocyanate, 0.5kg of dry powder mildew preventive, 0.3kg of organosilicon water repellent and 2.5kg of titanium dioxide.
Wherein the particle size of the quartz sand is 200 meshes, and the particle size of the coarse whiting powder is 1000 meshes. The rubber elastomer is composed of styrene butadiene rubber and ethylene propylene rubber in a mass ratio of 2: 1. The particle size of the rubber elastomer is 80 meshes. The reinforcing fiber is composed of carbon fiber and polypropylene fiber in a mass ratio of 1: 2.
The preparation method of the wear-resistant hot-melt marking paint comprises the following steps:
1) drying the quartz sand at 55 ℃ for 18min to obtain dry quartz sand; drying the coarse whiting powder at 45 ℃ for 35min to obtain dry coarse whiting powder.
2) Adding carbon five resin, EVA, polyphenyl granules, rubber elastomer granules, polyurethane elastomer granules and an organic silicon water repellent into a stirrer, stirring for 8min, uniformly mixing to obtain mixed light materials, and then conveying the mixed light materials into a mixing bin through a lifting machine; then, feeding the dry quartz sand into a mixing bin through a lifter; then the dry weight calcium powder and the bentonite are conveyed into a mixing bin through a lifting machine and are stirred for 2min in the mixing bin.
3) Uniformly mixing the reinforced fibers with 0.2kg of white oil to obtain a fiber mixture;
transferring the materials in the mixing bin to a homogenizing bin, adding the fiber mixture, paraffin, DOP, polyethylene wax, diphenylmethane diisocyanate, dry powder mildew preventive, titanium pigment and the rest white oil into the homogenizing bin, heating to 40 ℃, stirring for 30min, discharging and packaging to obtain the finished product.
Example 5
The wear-resistant hot-melt marking paint of the embodiment comprises the following components in parts by weight: 15.0kg of carbon five resin, 1.1kg of paraffin, 1.3kg of EVA1, 0.3kg of white oil, 28.0kg of quartz sand, 30.0kg of heavy calcium powder, 12.5kg of polyphenyl particles, 1.2kg of rubber elastomer, 2.0kg of polyurethane elastomer, 1.2kg of DOP, 1.7kg of polyethylene wax, 3.5kg of bentonite, 0.3kg of reinforcing fiber, 1.8kg of diphenylmethane diisocyanate, 1.0kg of dry powder mildew preventive, 0.5kg of organosilicon water repellent and 0.5kg of titanium dioxide.
Wherein the particle size of the quartz sand is 200 meshes, and the particle size of the coarse whiting powder is 1000 meshes. The rubber elastomer is composed of styrene butadiene rubber and ethylene propylene rubber in a mass ratio of 3: 1. The particle size of the rubber elastomer is 80 meshes. The reinforcing fiber consists of carbon fiber, glass fiber and polypropylene fiber in a mass ratio of 0.5:0.5: 3.
The preparation method of the wear-resistant hot-melt marking paint of the embodiment is the same as that of the embodiment 4.
Example 6
The wear-resistant hot-melt marking paint of the embodiment comprises the following components in parts by weight: 15.5kg of carbon five resin, 1.0kg of paraffin, 1.4kg of EVA1, 0.8kg of white oil, 32.0kg of quartz sand, 25.0kg of heavy calcium powder, 12.5kg of polyphenyl particles, 1.8kg of rubber elastomer, 2.0kg of polyurethane elastomer, 1.5kg of DOP, 1.8kg of polyethylene wax, 2.2kg of bentonite, 0.25kg of reinforcing fiber, 2.0kg of diphenylmethane diisocyanate, 0.8kg of dry powder mildew preventive, 0.8kg of organosilicon water repellent and 0.7kg of titanium dioxide.
Wherein the particle size of the quartz sand is 200 meshes, and the particle size of the coarse whiting powder is 1000 meshes. The rubber elastomer is composed of styrene butadiene rubber and ethylene propylene rubber in a mass ratio of 2: 1. The particle size of the rubber elastomer is 80 meshes. The reinforcing fiber consists of carbon fiber, glass fiber and polypropylene fiber in a mass ratio of 0.3:0.7: 3.
The preparation method of the wear-resistant hot-melt marking paint of the embodiment is the same as that of the embodiment 4.
Example 7
The wear-resistant hot-melt marking paint of the embodiment comprises the following components in parts by weight: 15.5kg of carbon five resin, 1.2kg of paraffin, 1.2kg of EVA1, 1.0kg of white oil, 30.0kg of quartz sand, 35.0kg of heavy calcium powder, 12.5kg of polyphenyl particles, 1.6kg of rubber elastomer, 2.0kg of polyurethane elastomer, 1.5kg of DOP, 1.8kg of polyethylene wax, 2.5kg of bentonite, 0.3kg of reinforcing fiber, 1.8kg of diphenylmethane diisocyanate, 0.8kg of dry powder mildew preventive, 0.8kg of organosilicon water repellent and 1kg of titanium dioxide.
Wherein the particle size of the quartz sand is 200 meshes, and the particle size of the coarse whiting powder is 1000 meshes. The rubber elastomer is composed of styrene butadiene rubber and ethylene propylene rubber in a mass ratio of 2: 1. The particle size of the rubber elastomer is 80 meshes. The reinforcing fiber consists of carbon fiber, glass fiber and polypropylene fiber in a mass ratio of 0.3:0.7: 3.
The preparation method of the wear-resistant hot-melt marking paint of the embodiment is the same as that of the embodiment 4.
Comparative example 1
The hot melt marking paint of the comparative example consists of the following components by weight: 5.0kg of carbon five resin, 1.5kg of paraffin, 0.5kg of EVA0, 1.2kg of white oil, 25.0kg of quartz sand, 36.0kg of heavy calcium powder and 6kg of titanium dioxide.
Wherein the particle size of the quartz sand is 100 meshes, and the particle size of the coarse whiting powder is 800 meshes.
The preparation method of the hot melt marking paint of the comparative example comprises the following steps:
1) drying the quartz sand at 50 ℃ for 20min to obtain dry quartz sand; drying the coarse whiting powder at 40 deg.C for 40min to obtain dry coarse whiting powder.
2) Adding the carbon five resin and the EVA into a stirrer, stirring for 5min, uniformly mixing to obtain a mixed light material, and then conveying the mixed light material into a mixing bin through a lifting machine; then, feeding the dry quartz sand into a mixing bin through a lifter; then the dry weight calcium powder is sent into a mixing bin through a lifter and stirred for 2min in the mixing bin.
3) Transferring the materials in the mixing bin to a homogenizing bin, adding paraffin, titanium dioxide and white oil into the homogenizing bin, heating to 50 deg.C, stirring for 25min, discharging, and packaging.
Comparative example 2
The hot melt marking paint of the comparative example consists of the following components by weight: 14.0kg of carbon five resin, 1.5kg of paraffin, 0.5kg of EVA0, 1.2kg of white oil, 21.0kg of quartz sand, 36.0kg of heavy calcium powder and 1kg of titanium dioxide.
Wherein the particle size of the quartz sand is 100 meshes, and the particle size of the coarse whiting powder is 800 meshes.
The preparation method of the hot melt marking paint of the comparative example comprises the following steps:
1) drying the quartz sand at 50 ℃ for 20min to obtain dry quartz sand; drying the coarse whiting powder at 40 deg.C for 40min to obtain dry coarse whiting powder.
2) Adding dry quartz sand and dry calcium powder into a homogenizer, stirring for 5min, adding carbon five resin, EVA, paraffin, titanium dioxide and white oil, heating to 50 deg.C, stirring for 50min, discharging, and packaging.
Comparative example 3
The hot melt marking paint of the comparative example consists of the following components by weight: 5.0kg of carbon five resin, 1.5kg of paraffin, 0.5kg of EVA0, 1.2kg of white oil, 29.0kg of quartz sand, 25.0kg of heavy calcium powder and 5kg of titanium dioxide.
Wherein the particle size of the quartz sand is 100 meshes, and the particle size of the coarse whiting powder is 800 meshes.
The preparation method of the hot melt marking paint of the comparative example comprises the following steps:
1) drying the quartz sand at 50 ℃ for 20min to obtain dry quartz sand; drying the coarse whiting powder at 40 deg.C for 40min to obtain dry coarse whiting powder.
2) Adding dry quartz sand and dry calcium powder into a homogenizer, stirring for 5min, adding carbon five resin, EVA, paraffin, titanium dioxide and white oil, heating to 50 deg.C, stirring for 50min, discharging, and packaging.
Test examples
(1) The hot-melt marking paints of examples 1 to 7 and comparative examples 1 to 3 were tested for abrasion resistance, adhesion, drying time of non-stick tire, and compressive strength according to the test methods in JT/T280-2004 "pavement marking paint", and the test results are shown in Table 1.
TABLE 1 comparison of Hot melt index coatings Performance test for examples 1-7 and comparative examples 1-3
(2) The hot-melt marking paints of examples 1 to 7 and comparative examples 1 to 3 were tested for water resistance according to the test method in GB/T1733-1993 test for Water resistance of paint films, for alkali resistance according to the test method in GB/T9265-2009 test for alkali resistance of architectural paint coatings, and for impact resistance according to the test method in GB1732-1993 test for impact resistance of paint films, the test results being shown in Table 2.
TABLE 2 results of the Performance test of the hot melt marking paints of examples 1 to 7 and comparative examples 1 to 3
| Water resistance (Water, 24h) | Alkali resistance (saturated limewater, 18h) | Impact resistance (kg/cm) | |
| Example 1 | No abnormality | No abnormality | 59 |
| Example 2 | No abnormality | No abnormality | 61 |
| Example 3 | No abnormality | No abnormality | 61 |
| Example 4 | No abnormality | No abnormality | 62 |
| Example 5 | No abnormality | No abnormality | 63 |
| Example 6 | No abnormality | No abnormality | 65 |
| Example 7 | No abnormality | No abnormality | 65 |
| Comparative example 1 | Slight foaming | Tarnish, slight blistering | 52 |
| Comparative example 2 | No abnormality | No abnormality | 58 |
| Comparative example 3 | Slight foaming | Tarnish and blistering | 51 |
As can be seen from tables 1 and 2, the wear-resistant hot-melt marking paint disclosed by the invention is very good in wear resistance, has high adhesive force and compressive strength, and can greatly prolong the service life of the marking. The wear-resistant hot-melt marking paint disclosed by the invention also has good water resistance and alkali resistance, and can adapt to various severe working conditions.
Claims (10)
1. The wear-resistant hot-melt marking paint is characterized in that: the composition comprises the following components in parts by weight: 14-17 parts of carbon five resin, 0.8-1.5 parts of paraffin, 0.5-1.5 parts of EVA, 0.3-1.2 parts of white oil, 21-32 parts of quartz sand and 25-38 parts of heavy calcium powder.
2. The wear-resistant hot melt marking paint of claim 1, wherein: the wear-resistant hot-melt marking paint comprises the following components in parts by weight: 15-17 parts of carbon five resin, 0.8-1.2 parts of paraffin, 1-1.5 parts of EVA (ethylene vinyl acetate), 0.3-1.0 part of white oil, 22-32 parts of quartz sand and 25-38 parts of heavy calcium powder.
3. A wear-resistant hot melt marking paint as claimed in claim 1 or 2, wherein: the wear-resistant hot-melt marking paint also comprises 1.2-2 parts by weight of rubber elastomer.
4. The wear-resistant hot melt marking paint of claim 3, wherein: the wear-resistant hot-melt marking paint also comprises 1-2 parts by weight of polyurethane elastomer.
5. The wear-resistant hot melt marking paint of claim 4, wherein: the wear-resistant hot-melt marking paint also comprises 10-15 parts by weight of polyphenyl particles.
6. A wear-resistant hot melt marking paint as claimed in claim 1 or 2, wherein: the wear-resistant hot-melt marking paint also comprises 2.2-3.5 parts by weight of bentonite.
7. A wear-resistant hot melt marking paint as claimed in claim 1 or 2, wherein: the wear-resistant hot-melt marking paint also comprises 0.2-0.3 part by weight of reinforcing fiber, wherein the reinforcing fiber is at least one of polypropylene fiber, carbon fiber and glass fiber.
8. The wear-resistant hot melt marking paint of claim 7, wherein: the reinforcing fiber is composed of at least one of carbon fiber and glass fiber and polypropylene fiber in a mass ratio of 1: 1-3.
9. A method of preparing the abrasion-resistant hot melt marking paint of claim 1, wherein: the method comprises the following steps:
1) uniformly mixing carbon five resin and EVA to obtain a mixed light material, and then uniformly mixing the mixed light material with quartz sand and heavy calcium powder to obtain a premix;
2) uniformly mixing the premix prepared in the step 1) with paraffin and white oil to obtain the product.
10. The method of preparing a wear-resistant hot melt marking paint of claim 9, wherein: in the step 1), the quartz sand is dried before mixing until the mass fraction of water is not more than 5%; the coarse whiting powder is dried before mixing until the water content is not more than 0.5 percent by mass.
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