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CN-122011861-A - Acrylic acid composite anti-icing paint and preparation method and application thereof

CN122011861ACN 122011861 ACN122011861 ACN 122011861ACN-122011861-A

Abstract

The invention discloses an acrylic acid composite anti-icing paint, a preparation method and application thereof, which belong to the technical field of road engineering materials, wherein the acrylic acid composite anti-icing paint is prepared by the following raw materials, by mass, 20% -35% of acrylic resin, 15% -25% of composite anti-icing agent, 1% -5% of nano titanium dioxide, 2% -3% of nano silicon dioxide, 1% -5% of auxiliary agent and 30% -50% of environment-friendly solvent, the composite anti-icing agent is prepared by coating diatomite anti-icing agent with methyl acrylate polymer, the methyl acrylate polymer is prepared by compounding methyl acrylate with unsaturated quaternary ammonium salt, the unsaturated quaternary ammonium salt is prepared by reacting 5-chloro-2-hydroxybenzophenone with N, N-diallyl ethanolamine and then reacting with brominated fatty chains, and the acrylic acid composite anti-icing paint prepared by the invention has good anti-icing property, durability and wear resistance.

Inventors

  • WEI FAYU

Assignees

  • 山东交科路美达新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20260327

Claims (10)

  1. 1. The acrylic acid composite anti-icing paint is characterized by comprising, by weight, 20% -35% of acrylic resin, 15% -25% of composite anti-icing agent, 1% -5% of nano titanium dioxide, 2% -3% of nano silicon dioxide, 1% -5% of auxiliary agent and 30% -50% of environment-friendly solvent.
  2. 2. The acrylic acid composite anti-icing paint according to claim 1, wherein the composite anti-icing agent is obtained by coating diatomite anti-icing agent with methyl acrylate polymer, and the diatomite anti-icing agent is obtained by compositing diatomite and chloride.
  3. 3. The acrylic composite anti-icing paint according to claim 2, wherein the methyl acrylate polymer is polymerized by methyl acrylate and unsaturated quaternary ammonium salt.
  4. 4. The acrylic composite anti-icing paint according to claim 3, wherein the unsaturated quaternary ammonium salt is obtained by reacting 5-chloro-2-hydroxybenzophenone with N, N-diallyl ethanolamine and then reacting with bromoaliphatic chains.
  5. 5. A method for preparing the acrylic composite anti-icing paint according to any one of claims 1 to 4, comprising the following steps: (1) Weighing and preparing materials of all raw material components, and drying nano titanium dioxide and nano silicon dioxide; (2) Adding an environment-friendly solvent into a reaction kettle, sequentially adding acrylic resin, a composite anti-icing agent, nano titanium dioxide, nano silicon dioxide and an auxiliary agent under the stirring condition, and stirring for 30-60 min; (3) Transferring the materials mixed in the step (2) into ultrasonic dispersing equipment for ultrasonic dispersing for 1-2 h; (4) And (3) filtering and discharging the material subjected to ultrasonic dispersion in the step (3) to obtain the acrylic acid composite anti-icing coating.
  6. 6. The preparation method of the acrylic acid composite anti-icing paint is characterized by comprising the steps of firstly mixing 5-6 parts by mass of KH-570 with 0.7-0.8 part by mass of concentrated hydrochloric acid, stirring and heating to 70-85 ℃, then dropwise adding 4-5 parts by mass of deionized water within 30 minutes, carrying out constant temperature reaction for 110-130 minutes after dropwise adding, then adding 86-90 parts by mass of toluene, heating to boiling and distilling at 105 ℃ to remove alcohol, water and hydrochloric acid in the solution, heating to 110-120 ℃, adding 4.6-5.5 parts by mass of diatomite anti-icing agent, carrying out constant temperature stirring reflux reaction for 4-6 hours, then adding 0.07-0.08 part by mass of initiator dibenzoyl peroxide, slowly adding 2.3-2.4 parts by mass of methyl acrylate and 2.9-3.8 parts by mass of unsaturated quaternary ammonium salt within 30 minutes, continuing the reaction for 3-4 hours, and finally carrying out filtering, grinding and drying to obtain the composite anti-icing paint.
  7. 7. The preparation method of the acrylic acid composite anti-icing paint according to claim 6 is characterized by comprising the steps of mixing absolute ethyl alcohol, an emulsifier OP-10 and diatomite according to a mass ratio of (78-80): 1 (2.2-2.4), performing ultrasonic dispersion for at least 30min to obtain diatomite ethanol suspension, heating a saturated potassium chloride aqueous solution to 58-62 ℃, then dropwise adding a hydrochloric acid solution to adjust the pH value to 1, then dropwise adding the solution into the diatomite ethanol suspension according to a volume ratio of 4:1 under an ultrasonic oscillation condition to form precipitate, and performing suction filtration, drying, grinding and drying for later use to obtain the diatomite anti-icing paint.
  8. 8. The preparation method of the acrylic acid composite anti-icing paint according to claim 6 is characterized in that the preparation method of the unsaturated quaternary ammonium salt comprises the steps of mixing N, N-diallyl ethanolamine, a polymerization inhibitor, potassium carbonate and acetone under the protection of nitrogen, stirring for 30-60 min, adding 5-chloro-2-hydroxybenzophenone, heating, stirring, condensing and refluxing for 11-13 h, removing excessive potassium carbonate and acetone, adding a brominated fatty chain, heating to 110-120 ℃, heating, stirring, condensing and refluxing for 3-4 h, and obtaining the unsaturated quaternary ammonium salt.
  9. 9. The preparation method of the acrylic acid composite anti-icing paint according to claim 6, wherein the molar ratio of N, N-diallyl ethanolamine to polymerization inhibitor to potassium carbonate to 5-chloro-2-hydroxybenzophenone to bromoaliphatic chain is 5 (0.0005-0.001), 6-7, 5-10 and 6-8, and the mass ratio of N, N-diallyl ethanolamine to acetone is 1 (6-12).
  10. 10. The application of the acrylic acid composite anti-icing paint according to any one of claims 1 to 4, which is characterized in that the acrylic acid composite anti-icing paint is applied to the field of road anti-icing.

Description

Acrylic acid composite anti-icing paint and preparation method and application thereof Technical Field The invention relates to the technical field of road engineering materials, in particular to an acrylic acid composite anti-icing paint and a preparation method and application thereof. Background In winter, road surface icing is a widespread problem that severely threatens traffic safety. The ice layer coverage can sharply reduce the friction coefficient between the road surface and the vehicle tyre, so that the vehicle braking distance is obviously prolonged, and serious traffic accidents such as continuous rear-end collision and the like are extremely easy to be induced, thus forming a great hidden danger for the life and property safety of people. At present, main measures for coping with road surface icing comprise snow-melting agent spreading and mechanical deicing, but the snow-melting agent spreading and deicing have obvious defects that although the snow-melting agent spreading and deicing has quick effect, serious environmental negative effects such as bridge and road facilities corrosion, soil structure damage, plant growth inhibition and underground water pollution are brought about, the mechanical deicing is limited by the operation efficiency, and the rigid shoveling process is easy to cause physical damage to the road surface layer. Therefore, developing an anti-icing material with environmental protection, high efficiency and long-acting performance has become an urgent need in the traffic engineering field. In recent years, anti-icing paint is attracting attention as a novel active protective material. Wherein, the acrylic paint has wide application prospect in the field of road coating by virtue of excellent film forming property, weather resistance and chemical corrosion resistance. However, the traditional acrylic coating still faces serious challenges in practical application, on one hand, the anti-icing performance of the traditional acrylic coating is limited, ice crystal nucleation and growth are difficult to effectively inhibit under extremely low-temperature and high-humidity environments, and the actual anti-skid requirements cannot be met, on the other hand, the road service environment is complex and changeable, the coating is exposed to strong ultraviolet radiation, severe temperature alternation and high-frequency rolling friction of vehicle tires for a long time, and the traditional formula is easy to cause premature failure caused by photo-oxidative aging, chalking and peeling or insufficient wear resistance due to lack of an effective enhancement and modification mechanism, so that long-service life is difficult to realize. Therefore, how to synergistically enhance the anti-icing performance of the acrylic composite anti-icing paint while synergistically enhancing the anti-aging capability and the wear resistance of the acrylic composite anti-icing paint is a key technical problem to be solved at present. Disclosure of Invention The invention aims to provide an acrylic acid composite anti-icing paint as well as a preparation method and application thereof, so as to solve the technical problems in the background art. The technical scheme for realizing the aim of the invention is as follows: In the first aspect, the invention provides an acrylic composite anti-icing coating, which comprises the following raw materials of 20% -35% of acrylic resin, 15% -25% of composite anti-icing agent, 1% -5% of nano titanium dioxide, 2% -3% of nano silicon dioxide, 1% -5% of auxiliary agent and 30% -50% of environment-friendly solvent. Furthermore, the acrylic resin is selected from acrylic resins with molecular weights of 50000-80000 and glass transition temperatures of-20-30 ℃, and can form tough paint films at normal temperature, and the acrylic resins still have certain flexibility and are not easy to crack in a low-temperature environment. Further, the particle size of the nano titanium dioxide is 15-45 nm, and the particle size of the nano silicon dioxide is 10-25 nm. Further, the auxiliary agent comprises a dispersing agent, a defoaming agent and a thickening agent, wherein the dispersing agent is used for uniformly dispersing all components to ensure the stability of the paint, the defoaming agent is used for eliminating bubbles generated in the preparation process of the paint to improve the quality of the paint, and the thickening agent is used for adjusting the viscosity of the paint to facilitate construction. Furthermore, the environment-friendly solvent is selected from environment-friendly organic solvents including ethyl acetate and propylene glycol methyl ether acetate, and the solvents can effectively dissolve acrylic resin, have lower Volatile Organic Compound (VOC) content and meet the environment-friendly requirement. The composite anti-icing agent is obtained by coating diatomite anti-icing agent with methyl acrylate polymer, wherein the diatomite anti-icing agent is