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CN-121991565-A - Wear-resistant quick-drying hot-melt marking material and preparation method thereof

CN121991565ACN 121991565 ACN121991565 ACN 121991565ACN-121991565-A

Abstract

The invention discloses a wear-resistant quick-drying hot-melt marking material and a preparation method thereof, and relates to the technical field of marking paint. The wear-resistant quick-drying hot-melt marking material comprises modified petroleum resin, titanium dioxide, filler, glass beads, crosslinked polyethylene wax and an auxiliary agent, wherein the modified petroleum resin is prepared by reacting hydroxyl hyperbranched polysiloxane, epoxy polyol, dimethyl triphenylmethane tetraisocyanate and amino polysulfide rubber in the petroleum resin, so that the strength and the heat resistance are effectively improved, the service life of the hot-melt marking material is prolonged, the crosslinked polyethylene wax is prepared by reacting polyoxyethylene ether maleic anhydride with polypropylene carbonate and then crosslinking the polyethylene wax, and the polyoxyethylene ether maleic anhydride is prepared by copolymerizing diallyl polyoxyethylene ether and maleic anhydride, so that the drying time can be shortened.

Inventors

  • ZHU JIANQIANG
  • LIU XIAOJUAN
  • SU JING

Assignees

  • 朝阳路源交通科技有限公司

Dates

Publication Date
20260508
Application Date
20260409

Claims (9)

  1. 1. The wear-resistant quick-drying hot-melt marking material is characterized by comprising, by weight, 15-20 parts of modified petroleum resin, 5-10 parts of titanium dioxide, 50-60 parts of filler, 18-25 parts of glass beads, 3-7 parts of crosslinked polyethylene wax and 2-5 parts of auxiliary agents, wherein the modified petroleum resin is prepared by reacting hydroxyl hyperbranched polysiloxane, epoxy polyol, dimethyl triphenylmethane tetraisocyanate and amino polysulfide rubber in the petroleum resin.
  2. 2. The wear-resistant quick-drying hot-melt marking material according to claim 1, wherein the crosslinked polyethylene wax is prepared by crosslinking polyethylene wax after the reaction of polyoxyethylene ether maleic anhydride and polypropylene carbonate, and the polyoxyethylene ether maleic anhydride is prepared by copolymerizing diallyl polyoxyethylene ether and maleic anhydride.
  3. 3. The wear-resistant quick-drying hot-melt marking material according to claim 1, wherein the filler is one or more of heavy calcium powder, quartz sand, barite powder or calcium carbonate powder.
  4. 4. The wear-resistant quick-drying hot-melt marking material according to claim 1, wherein the auxiliary agent comprises a plasticizer, a brightening agent and an antioxidant, and the mass ratio of the plasticizer to the brightening agent to the antioxidant is 0.2-0.4:1:1-2.
  5. 5. The method for preparing the wear-resistant quick-drying hot-melt marking material according to claim 1, which is characterized by comprising the following specific steps: S1, mixing C5 petroleum resin, hydroxyl hyperbranched polysiloxane, dimethyl triphenylmethane tetraisocyanate and ethyl acetate according to the mass ratio of 50:15-20:18-25:20-30 to obtain petroleum resin mixed solution, placing the petroleum resin mixed solution in a high-pressure reaction kettle, heating to 80-90 ℃, stirring at the speed of 1000-2000 rpm for 30-50 min under the pressure of 15-20 MPa, adding an absolute ethyl alcohol solution of 15-25% amino polysulfide rubber, regulating the pressure of 10-15 MPa, reacting at the temperature of 90-100 ℃ for 1-3 h under the stirring speed of 1000-2000 rpm, and drying at the temperature of 60-80 ℃ to obtain modified petroleum resin; s2, mixing the diallyl polyoxyethylene ether and the maleic anhydride in a molar ratio of 1:1.1-1.2 under the nitrogen atmosphere, heating to 70-80 ℃, uniformly stirring, dropwise adding ammonium persulfate solution with the mass fraction of 5-8% which is 0.2-0.4 times that of the diallyl polyoxyethylene ether at a rate of 1-3 ml/min, carrying out heat preservation reaction for 2-3 h, cooling to 40-50 ℃, and regulating the pH value to 5.5-6.0 by using sodium hydroxide solution to obtain polyoxyethylene ether maleic anhydride; S3, mixing polypropylene carbonate and toluene according to a mass ratio of 1:5-7, heating to 90-100 ℃, stirring and dissolving, adding polyoxyethylene ether maleic anhydride with the mass of 2-2.2 times of the polypropylene carbonate and p-toluenesulfonic acid which is a catalyst with the mass of 0.01-0.03 times of the polypropylene carbonate, heating to 110-120 ℃, reacting for 4-6 hours, adding polyethylene wax with the mass of 1.7-1.9 times of the polypropylene carbonate, heating to 125-135 ℃, continuing to react for 3-5 hours, cooling to room temperature, precipitating with petroleum ether, filtering, washing for 3-5 times with petroleum ether, and drying in a vacuum oven with the temperature of 50-60 ℃ to obtain the crosslinked polyethylene wax; S4, mixing the modified petroleum resin, the titanium pigment and the filler according to mass fraction, placing the mixture into a high-speed stirrer, uniformly stirring, adding the crosslinked polyethylene wax and the auxiliary agent, heating to 190-220 ℃, carrying out heat preservation and stirring at 200-400 rpm for 3-8 min, adding the glass beads, and uniformly stirring to obtain the wear-resistant quick-drying hot melt marking material.
  6. 6. The method for preparing the wear-resistant quick-drying hot-melt marking material according to claim 5, wherein in the step S1, the preparation method of the amino polysulfide rubber is characterized in that polysulfide rubber and 1, 2-dichloroethane are mixed according to a mass ratio of 1:4-5, sodium hydroxide ethanol solution with a mass fraction of 8-14% and 6-8 times that of polysulfide rubber is dropwise added at a speed of 1-3 ml/min, the temperature is raised to 60-70 ℃, stirring is carried out at 200-400 rpm for 3-4 h, reduced pressure distillation is carried out, isopropanol toluene solution with a mass fraction of 10-30% and ethylenediamine with a mass fraction of 2-4 times that of polysulfide rubber, the temperature is raised to 80-90 ℃, stirring reaction is continued under a nitrogen atmosphere for 4-6 h, sodium hydroxide with a mass fraction of 0.4-0.7 times that of polysulfide rubber is added, stirring is continued for 30-40 min, liquid separation is carried out, and reduced pressure distillation is carried out, so that the amino polysulfide rubber is prepared.
  7. 7. The preparation method of the wear-resistant quick-drying hot-melt marking material is characterized in that in the step S1, 3, 5-dihydroxybenzoic acid, potassium carbonate and N, N-dimethylformamide are mixed according to the mass ratio of 1:2-2.1:8-10, the temperature is raised to 80-90 ℃,1, 3-bis (chloromethyl) -1, 3-tetramethyl disiloxane with the mass of 1.15-1.25 times that of 3, 5-dihydroxybenzoic acid is added after uniform stirring, the reaction is carried out for 46-48 hours under heat preservation, the mixture is centrifuged and steamed in a rotary way, hydrochloric acid solution with the pH of 3 is used for precipitation, and the mixture is dried for 12-24 hours at 40-50 ℃ to obtain the hydroxyl hyperbranched polysiloxane.
  8. 8. The method for preparing the wear-resistant quick-drying hot-melt marking material according to claim 5, wherein in the step S1, the method for preparing the epoxy polyol comprises the steps of mixing epoxy resin, cardanol, an oxidant 1010 and an oxidant 168 according to a mass ratio of 80-100:47-49:0.1:0.1, heating to 100-110 ℃, stirring and dissolving, adding triphenylphosphine serving as a catalyst with the mass of 0.004-0.006 times that of the epoxy resin, heating to 180-190 ℃, and reacting for 60-80 min to obtain the epoxy polyol.
  9. 9. The preparation method of the wear-resistant quick-drying hot-melt marking material is characterized in that in the step S2, allyl polyoxyethylene ether and sodium hydroxide are mixed according to the mass ratio of 10:0.8-1 under the nitrogen atmosphere, the temperature is raised to 35-37 ℃, the reaction is carried out for 6-7 h, allyl chloride with the mass of 0.2-0.22 times of that of the allyl polyoxyethylene ether is dropwise added at the speed of 1-3 ml/min, the reaction is continued for 6-8 h, glacial acetic acid with the mass of 1.2-1.3 times of that of the sodium hydroxide is added, deionized water and magnesium silicate are used for washing, filtering and drying are carried out, and the allyl polyoxyethylene ether is prepared.

Description

Wear-resistant quick-drying hot-melt marking material and preparation method thereof Technical Field The invention relates to the technical field of marking paint, in particular to a wear-resistant quick-drying hot-melt marking material and a preparation method thereof. Background Road markings are classified into normal temperature solvent type, heated solvent type, and hot melt type markings according to the type of paint used. The reflective hot-melt marking has the characteristics of about 1.5-2.5 mm of coating thickness, 10 times of the normal-temperature solvent marking, good wear resistance, no solvent volatilization, high construction drying speed and good night reflectivity. Therefore, the reflective hot-melt marking is more suitable for urban arterial roads, high-grade highways and the like with large vehicle flow. The hot-melt marking paint is a paint coated on a road and used for marking the road marking, has the advantages of strong adhesive force, good crack resistance, bright color and high coating rate, but the slower drying speed and the poorer wear resistance can influence the service performance of the paint when the hot-melt marking paint is used on a road surface, so the wear-resistant quick-drying hot-melt marking material is researched and prepared to solve the problem. Disclosure of Invention The invention aims to provide a wear-resistant quick-drying hot-melt marking material and a preparation method thereof. The invention provides a wear-resistant quick-drying hot-melt marking material which is prepared from the following raw materials, by weight, 15-20 parts of modified petroleum resin, 5-10 parts of titanium dioxide, 50-60 parts of filler, 18-25 parts of glass beads, 3-7 parts of crosslinked polyethylene wax and 2-5 parts of auxiliary agents, wherein the modified petroleum resin is prepared by reacting hydroxyl hyperbranched polysiloxane, epoxy polyol, dimethyl triphenylmethane tetraisocyanate and amino polysulfide rubber in petroleum resin. Preferably, the crosslinked polyethylene wax is prepared by reacting polyoxyethylene ether maleic anhydride with polypropylene carbonate and then crosslinking the polyethylene wax, and the polyoxyethylene ether maleic anhydride is prepared by copolymerizing diallyl polyoxyethylene ether and maleic anhydride. Preferably, the filler is one or more of heavy calcium powder, quartz sand, barite powder or calcium carbonate powder. Preferably, the auxiliary agent comprises a plasticizer, a whitening agent and an antioxidant, wherein the mass ratio of the plasticizer to the whitening agent to the antioxidant is 0.2-0.4:1:1-2. Preferably, the preparation method of the wear-resistant quick-drying hot melt marking material comprises the following specific steps: S1, mixing C5 petroleum resin, hydroxyl hyperbranched polysiloxane, dimethyl triphenylmethane tetraisocyanate and ethyl acetate according to the mass ratio of 50:15-20:18-25:20-30 to obtain petroleum resin mixed solution, placing the petroleum resin mixed solution in a high-pressure reaction kettle, heating to 80-90 ℃, stirring at the speed of 1000-2000 rpm for 30-50 min under the pressure of 15-20 MPa, adding an absolute ethyl alcohol solution of 15-25% amino polysulfide rubber, regulating the pressure of 10-15 MPa, reacting at the temperature of 90-100 ℃ for 1-3 h under the stirring speed of 1000-2000 rpm, and drying at the temperature of 60-80 ℃ to obtain modified petroleum resin; s2, mixing the diallyl polyoxyethylene ether and the maleic anhydride in a molar ratio of 1:1.1-1.2 under the nitrogen atmosphere, heating to 70-80 ℃, uniformly stirring, dropwise adding ammonium persulfate solution with the mass fraction of 5-8% which is 0.2-0.4 times that of the diallyl polyoxyethylene ether at a rate of 1-3 ml/min, carrying out heat preservation reaction for 2-3 h, cooling to 40-50 ℃, and regulating the pH value to 5.5-6.0 by using sodium hydroxide solution to obtain polyoxyethylene ether maleic anhydride; S3, mixing polypropylene carbonate and toluene according to a mass ratio of 1:5-7, heating to 90-100 ℃, stirring and dissolving, adding polyoxyethylene ether maleic anhydride with the mass of 2-2.2 times of the polypropylene carbonate and p-toluenesulfonic acid which is a catalyst with the mass of 0.01-0.03 times of the polypropylene carbonate, heating to 110-120 ℃, reacting for 4-6 hours, adding polyethylene wax with the mass of 1.7-1.9 times of the polypropylene carbonate, heating to 125-135 ℃, continuing to react for 3-5 hours, cooling to room temperature, precipitating with petroleum ether, filtering, washing for 3-5 times with petroleum ether, and drying in a vacuum oven with the temperature of 50-60 ℃ to obtain the crosslinked polyethylene wax; S4, mixing the modified petroleum resin, the titanium pigment and the filler according to mass fraction, placing the mixture into a high-speed stirrer, uniformly stirring, adding the crosslinked polyethylene wax and the auxiliary agent, heating to