Anti-icing coating composition and preparation method thereof

Abstract

The invention belongs to the technical field of coatings, and particularly relates to an anti-icing coating composition and a preparation method thereof. The icing-resistant coating composition is prepared from the following components: a component A, a component B and a component C, wherein the component A is prepared from the following components in percentage by weight: 50.0 to 70.0 percent of fluorocarbon resin, 0.5 to 1.0 percent of a de-foaming agent, 0.5 to 1.0 percent of a dispersing agent, 3.0 to 14.0 percent of xylene, 10.0 to 20.0 percent of titanium dioxide, 10.0 to 20.0 percent of microcapsule particles and 0.1 to 0.3 percent of a flatting agent; the component B is prepared from the following components in percentage by weight: 70.0 to 90.0 percent of an isocyanate curing agent and 10 to 30 percent of xylene; the mass ratio of the component A to the component B is 100: 15. Through the synergistic effect of the low-surface-energy fluorocarbon resin and the microcapsules, the efficient anti-icing / deicing effect is achieved, the contact angle of the coating can reach 110 degrees or above, and the coating still has good anti-icing capacity after being polished and damaged by 120-mesh abrasive paper.

Description

Technical Field

[0001] The present invention belongs to the technical field of coatings, and in particular relates to an anti-icing coating composition and a preparation method thereof. Background Art

[0002] During the production, transportation and storage of coal, the adhesion phenomenon has always been an important problem that has troubled coal companies. Coal adhesion can be divided into two types: wet adhesion and frozen adhesion. Wet adhesion refers to an interfacial adhesion phenomenon that occurs when coal with a certain water content adheres to the surface of storage and transportation equipment such as mine cars. This adhesion is relatively easy to remove. Frozen adhesion refers to the freezing of water in coal at low temperatures, which causes the coal to adhere to the surface of transportation or storage equipment, including the freezing of internal water and the freezing of water between the coal and the wall of the coal transport car. For coal storage and transportation, frozen adhesion is more harmful than wet adhesion. It usually occurs on the basis of wet adhesion. When the temperature is below zero, the coal will adhere to the surface of coal storage and transportation equipment at low temperatures after freezing.

[0003] In cold weather conditions, especially when the average outdoor temperature is -30 to -15°C, the coal sticking rate of mine cars and other coal transport vehicles is as high as 30% to 60%, which requires regular manual cleaning, which not only affects work efficiency but also may damage the carriage. In some thermal power plants and coal preparation plants, due to the different coal quality and certain water content, the adhesion of coal to the coal storage bunker causes the coal bunker to be blocked, resulting in huge economic losses. At present, the problem of coal adhesion has seriously restricted the production and benefits of coal enterprises, and solving the problem of freezing and sticking of coal mine storage and transportation equipment has become a top priority.

[0004] At present, the main method for coal mining enterprises to prevent and solve the problem of coal freezing and sticking during coal transportation is to spray antifreeze (such as calcium chloride, ethylene glycol solution) to prevent coal from freezing. However, this practice has many disadvantages: on the one hand, it needs to be sprayed once before each coal loading, the sustainable effect time is short, and the reuse rate is low; on the other hand, the antifreeze needs to directly contact the train carriage, which will not only cause corrosion damage to the equipment, but also cause serious environmental pollution. For frozen coal carriages, most coal mines still use manual cleaning to solve the problem of coal sticking in mine cars, which is time-consuming, labor-intensive and inefficient.

[0005] For coal transportation in cold regions, by changing the surface properties of materials and designing and preparing surface materials with anti / ice-phobic properties, the phenomenon of coal sticking to the bottom and sides of vehicles can be slowed down in winter, manual cleaning can be reduced, or the use of antifreeze can be decreased, thereby improving the efficiency of coal transportation. Due to its low surface energy property, superhydrophobic materials can reduce the contact area with droplets, thus delaying the ice formation rate to a certain extent. However, they cannot completely prevent the phenomenon of ice and snow freezing. Especially when the moisture content of coal is high, the coal will still freeze and adhere to the bottom of the carriage. Usually, superhydrophobic materials have good protection effects in the initial stage of protection. However, as the surface of the material is worn by coal powder, the superhydrophobic structure on the surface is damaged, and the protection effect will be significantly reduced.

[0006] Chinese Patent CN 109111849 A discloses an anti-icing coating and its preparation method. By mixing silicone rubber, fluorine-containing monomers, a coupling agent, and a catalyst, a cross-linking reaction occurs, introducing fluorine-containing side chains onto the silicone rubber to form fluorinated polysiloxane. Then, by adding liquid paraffin and heating, an organosilicon gel is prepared. Finally, an anti-icing coating with low ice adhesion strength is obtained through curing. However, the wear resistance of the coating in this solution is poor. After scratches appear on the coating, the bonding strength between ice and the material will become stronger. At the same time, the lubricating layer formed by liquid paraffin will lose its lubricating effect as the coating wears. Chinese Patent CN113004750 A provides an antibacterial anti-icing coating and its preparation method. This solution introduces organosilicon-modified paraffin and bis(vinyl)silicone oil into fluorosilicone resin, and uses the stress difference between the flexibility of the coating and the ice layer at low temperatures to reduce the ice adhesion strength. However, this solution also has disadvantages such as poor wear resistance, easy wear and loss of the lubricating layer, and poor long-term effectiveness. Summary of the Invention

[0007] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide an anti-icing coating composition and its preparation method.

[0008] To achieve the above purpose, the technical solutions adopted are as follows: One of the purposes of the present invention is to provide an anti-icing coating composition, comprising the following components: Component A: By weight percentage, including 50.0 - 70.0% of fluorocarbon resin, 0.5 - 1.0% of defoamer, 0.5 - 1.0% of dispersant, 3.0 - 14.0% of xylene, 10.0 - 20.0% of titanium dioxide, 10.0 - 20.0% of microcapsule particles, and 0.1 - 0.3% of leveling agent; Component B: By weight percentage, including 70.0 - 90.0% of isocyanate curing agent and 10 - 30% of xylene; The mass ratio of Component A to Component B is 100:15.

[0009] Preferably, the wall thickness of the microcapsule particles is 20 - 80 nm.

[0010] Preferably, the particle size of the microcapsule particles is 350 - 550 nm.

[0011] More preferably, the wall thickness of the microcapsule particles is 50 nm, and the particle size of the microcapsule particles is 400 - 500 nm.

[0012] Preferably, the method for preparing the microcapsule particles comprises the following steps: Step 1: Preparation of the emulsion ① Preparation of the aqueous phase: Dissolve sodium dodecyl sulfate in deionized water, add ammonium persulfate, and stir at 25 °C until the solution becomes clear; ② Preparation of the oil phase: Mix long-chain alkane fatty acid, methyl methacrylate, and styrene evenly; ③ Pre-emulsification: Slowly add the oil phase to the aqueous phase, shear to form a coarse emulsion, and homogenize the coarse emulsion to obtain an emulsion. Step 2: Polymerization reaction React 100 g of the emulsion under nitrogen protection at a temperature of 70 - 80 °C for 2 - 6 hours. The emulsion changes from a semi-transparent state to a milky white gel state. Add hydroquinone, and then quickly cool to 25 °C; Step 3: Purification and drying of the microcapsules Add ethanol to the emulsion formed in Step 2, then centrifuge, remove the supernatant, and perform suction filtration and washing to ensure that the pH value of the filtrate reaches neutral. Freeze the powder obtained by suction filtration; then, under vacuum conditions, raise the temperature for sublimation drying, raise the temperature again and maintain it to obtain microcapsule particles with a wall thickness of 20 - 80 nm and a particle size range of 350 - 550 nm.

[0013] More preferably, the method for preparing the microcapsule particles comprises the following specific steps: Step 1: Preparation of the emulsion ① Preparation of the aqueous phase: In a beaker, dissolve 2.4 g of SDS (sodium dodecyl sulfate) in 76 g of deionized water, add 0.8 g of APS (ammonium persulfate), and stir at 25 °C at a speed of 500 revolutions per minute for 30 minutes until the solution becomes clear; ② Preparation of the oil phase: According to the mass ratio, mix 12 g of long-chain alkane fatty acid, 20 g of MMA (methyl methacrylate), and 8 g of St (styrene), and then place them in a vortex oscillator and mix evenly for 1 minute; ③ Pre-emulsification: Slowly add the oil phase to the aqueous phase, use a high-speed shear machine to shear at a speed of 15000 revolutions per minute for 5 minutes to form a coarse emulsion. Then, place the coarse emulsion in a high-pressure homogenizer and homogenize it 3 times at a pressure of 40 MPa to obtain an emulsion with a particle size in the range of 300 - 400 nm. Step 2: Polymerization reaction Transfer 100 g of the emulsion into a three-necked flask, and introduce nitrogen for protection. React at a temperature of 75 °C for 2 - 6 hours. The emulsion will change from a translucent state to a milky white gel state. Finally, add 0.1 g of hydroquinone (dissolved in 1 mL of ethanol), and then quickly cool to 25 °C; Step 3: Purification and drying of microcapsules Add 20 mL of ethanol to the emulsion formed by the reaction. Then centrifuge at a speed of 8000 revolutions per minute for 10 minutes on a centrifuge to remove the supernatant. Next, perform suction filtration, and wash alternately with deionized water and absolute ethanol 3 times to ensure that the pH value of the filtrate reaches neutral. Place the powder obtained by suction filtration in an environment of -30 °C and freeze for 12 hours; then, under the condition of maintaining a vacuum degree of 0.1 bar, gradually increase the temperature from -30 °C to -10 °C at a rate of 2 °C per hour, and maintain this temperature for sublimation drying for 12 hours; subsequently, increase the temperature to 25 °C at a rate of 5 °C / hour and hold for 6 hours. Finally, microcapsule particles with a wall thickness of 20 - 80 nm and a particle size range of 350 - 550 nm are prepared.

[0014] Preferably, the hydroxyl value of the fluorocarbon resin is 108 - 122 mgKOH / g, and the solid content is 54 - 58 wt%.

[0015] Preferably, for the isocyanate curing agent, the content of NCO groups is 23.1 - 23.5 wt%, and the solid content is 100 wt%.

[0016] Another object of the present invention is to provide a preparation method of the anti-icing coating composition, including the following steps: Disperse and mix fluorocarbon resin, titanium dioxide, microcapsule particles, defoamer, dispersant, leveling agent, and xylene evenly, with a fineness ≤ 30 microns, to obtain Component A; Mix the isocyanate curing agent and xylene evenly to obtain Component B; Mix Component A and Component B to obtain the anti-icing coating composition.

[0017] More preferably, the preparation method of the anti-icing coating composition includes the following specific steps: First, add the fluorocarbon resin and xylene solvent to a batching tank, start stirring with a set rotation speed of 500 r / min, and sequentially add the defoamer, dispersant, titanium dioxide, and microcapsule particles according to the ratio under stirring conditions. After adding, disperse at 1500 r / min for 0.5 h, reduce the rotation speed to 800 r / min, add the leveling agent, and disperse for 10 min. Finally, filter and discharge through a 120-mesh sieve, and the fineness of the fluorocarbon coating ≤ 30 μm; Component B: First, add the isocyanate curing agent and xylene to a batching tank, start stirring with a rotation speed of 500 r / min, disperse for 20 min, and finally filter and discharge through a 120-mesh sieve; Weigh components A and B into the batching tank according to a mass ratio of 100:15, start stirring at 300 r / min for dispersion for 3 - 5 min, and then let it stand for 10 min before spray construction.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses fluorocarbon resin as the film-forming substance, which has excellent wear resistance. The formed coating can protect the substrate for a long time, thereby improving the service life of transportation equipment; Utilize the synergistic effect of fluorocarbon resin and microcapsules to achieve efficient anti-icing and de-icing effects. When the coating is scratched and damaged, the microcapsule shell will be broken to release the long-chain fatty acid inside, forming a self-lubricating layer on the coating surface to reduce the ice adhesion strength; In the coating system, the microcapsule particles are evenly distributed throughout the system and will not all migrate to the coating surface. As the coating wears, they will be slowly released for a long time, continuously forming a lubricating layer, and will not cause the weakening of the lubricating effect due to the wear of the coating, thus achieving the long-term anti-icing effect; The contact angle of the coating can reach more than 110°, and the coating still has good anti-icing ability after being polished and damaged by 120-mesh sandpaper. Detailed implementation methods

[0019] The present invention will be described below in conjunction with examples. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] The raw materials used in the following examples are: ① The fluorocarbon resin is Daikin ZU-201 fluorocarbon resin from Japan, with a hydroxyl value of 108 - 122 mgKOH / g, and a solid content of 54 - 58 wt%. ② The isocyanate curing agent is Asahi Kasei TPA100, with an NCO content of 23.1 - 23.5 wt% and a solid content of 100 wt%; ③ The titanium dioxide is rutile type R2, with the model R996, TiO 2≥ 95%, the volatile content ≤ 0.5%, and the average particle size ≤ 10 μm.

[0021] ⑤ The defoamer is at least one of AFCONA 2045, BYK070, and Tech-430; ⑥ The dispersant is at least one of AFCONA5010, AFCONA5065, and TEGO 685; ⑦ The leveling agent is at least one of AFCONA3593, BYK333, and Tech-2409; ⑧ Xylene: The purity ≥ 99.5%, and the water content ≤ 0.03%.

[0022] ⑨ Long-chain alkane fatty acid: Palmitoleic acid with a melting point of 0 - 1.0 °C; Manufacturer: Petronas Dagangan Berhad of Malaysia.

[0023] ⑩ Methyl methacrylate: purity ≥ 99%, manufacturer: Sigma - Aldrich.

[0024] ⑪ Styrene: purity ≥ 99%, manufacturer: Alfa Aesar.

[0025] ⑫ Ammonium persulfate: purity ≥ 98%, analytical pure; manufacturer: Sinopharm Group.

[0026] ⑬ Sodium dodecyl sulfate (SDS): purity ≥ 99%, bi - grade; manufacturer: TCI Chemicals.

[0027] Preparation example of microcapsule particles Step 1: Preparation of emulsion ① Preparation of aqueous phase: In a beaker, dissolve 2.4 g of SDS (sodium dodecyl sulfate) in 76 g of deionized water, and add 0.8 g of APS (ammonium persulfate). Stir at a speed of 500 revolutions per minute for 30 minutes at 25 °C until the solution becomes clear. ② Preparation of oil phase: Mix 12 g of long - chain alkane fatty acid, 20 g of MMA (methyl methacrylate), and 8 g of St (styrene), and then put them into a vortex oscillator and mix evenly for 1 minute. ③ Pre - emulsification: Slowly add the oil phase to the aqueous phase, and use a high - speed shear machine to shear at a speed of 15000 revolutions per minute for 5 minutes to form a coarse emulsion. Then, put the coarse emulsion into a high - pressure homogenizer and homogenize 3 times at a pressure of 40 MPa to obtain an emulsion with a particle size in the range of 300 - 400 nm.

[0028] Step 2: Polymerization reaction Transfer 100 g of the emulsion to a three - necked flask and protect it by passing nitrogen. React at a temperature of 75 °C for 4 hours, and the emulsion will change from a semi - transparent state to a milky white gel state. Finally, add 0.1 g of hydroquinone (dissolved in 1 ml of ethanol), and then quickly cool to 25 °C.

[0029] Step 3: Purification and drying of microcapsules Add 20 ml of ethanol to the emulsion formed by the reaction. Subsequently, centrifuge at 8000 revolutions per minute for 10 minutes on a centrifuge to remove the supernatant. Next, perform suction filtration and wash alternately with deionized water and absolute ethanol 3 times to ensure that the pH value of the filtrate reaches neutral. Place the powder obtained by suction filtration in an environment of -30 °C and freeze it for 12 hours; then, under the condition of maintaining a vacuum of 0.1 bar, gradually increase the temperature from -30 °C to -10 °C at a rate of 2 °C per hour and maintain this temperature for sublimation drying for 12 hours. Subsequently, increase the temperature to 25 °C at a rate of 5 °C per hour and hold for 6 hours. Through this series of steps, microcapsule particles WJ-50 with a wall thickness of 50 nm and a particle size range of 400-500 nm are finally prepared.

[0030] Change the polymerization time in step 2 to prepare microcapsule particles with different wall thicknesses and particle sizes. When the reaction time becomes 2 hours, microcapsule particles WJ-20 with a wall thickness of 20 nm and a particle size range of 350-450 nm are prepared; when the reaction time becomes 6 hours, microcapsule particles WJ-80 with a wall thickness of 80 nm and a particle size range of 450-550 nm are prepared.

[0031] The preparation scheme of the anti-icing coating: First, add fluorocarbon resin and xylene solvent to the batching tank, start stirring and set the rotation speed to 500 r / min. Under stirring conditions, add defoamer, dispersant, titanium dioxide, and microcapsule particles in proportion in turn. After adding, disperse at 1500 r / min for 0.5 h, reduce the rotation speed to 800 r / min and add leveling agent, disperse for 10 min. Finally, filter through a 120-mesh filter screen for discharging, and the fineness of the fluorocarbon coating ≤ 30 μm; Component B: First, add isocyanate curing agent and xylene to the batching tank, start stirring at a rotation speed of 500 r / min, disperse for 20 min, and finally filter through a 120-mesh filter screen for discharging; Weigh components A and B into the batching tank according to a mass ratio of 100:15, start stirring at 300 r / min and disperse for 3-5 min, then let it stand for 10 min and then carry out spraying construction.

[0032] Example 1 The weight percentage content of each component in the coating is: Component A: fluorocarbon resin 60%, titanium dioxide 15%, WJ-50 microcapsule particles 10%, defoamer AFCONA 2045 0.7%, dispersant AFCONA5010 0.6%, leveling agent AFCONA3593 0.2%, xylene 13.5%.

[0033] Component B: isocyanate curing agent 84%, xylene 16%.

[0034] Example 2 Component A: 60% fluorocarbon resin, 15% titanium dioxide, 15% WJ-50 microcapsule particles, 0.7% defoamer BYK070, 0.6% dispersant AFCONA5065, 0.2% leveling agent BYK333, 8.5% xylene.

[0035] Component B: 84% isocyanate curing agent, 16% xylene.

[0036] Example 3 Component A: 60% fluorocarbon resin, 15% titanium dioxide, 20% WJ-50 microcapsule particles, 0.7% defoamer Tech-430, 0.6% dispersant TEGO 685, 0.2% leveling agent Tech-2409, 3.5% xylene.

[0037] Component B: 84% isocyanate curing agent, 16% xylene.

[0038] Comparative Example 1 The weight percentage content of each component in the coating is as follows: Component A: 60% fluorocarbon resin, 30% titanium dioxide, 0.7% defoamer BYK070, 0.6% dispersant AFCONA5065, 0.2% leveling agent BYK333, 8.5% xylene.

[0039] Component B: 84% isocyanate curing agent, 16% xylene.

[0040] Comparative Example 2 Component A: 60% fluorocarbon resin, 15% titanium dioxide, 15% WJ-20 microcapsule particles, 0.7% defoamer BYK070, 0.6% dispersant AFCONA5065, 0.2% leveling agent BYK333, 8.5% xylene.

[0041] Component B: 84% isocyanate curing agent, 16% xylene.

[0042] Comparative Example 3 Component A: 60% fluorocarbon resin, 15% titanium dioxide, 15% WJ-80 microcapsule particles, 0.7% defoamer BYK070, 0.6% dispersant AFCONA5065, 0.2% leveling agent BYK333, 8.5% xylene.

[0043] Component B: 84% isocyanate curing agent, 16% xylene.

[0044] Test method: 1. Contact angle test: Use a contact angle measuring instrument to measure the contact angle between water droplets and different materials, and determine the hydrophobicity of different materials.

[0045] 2. Abrasion resistance test: According to the provisions of the national standard GB / T 1768-2006, the abrasion resistance of different materials was determined. The test grinding wheel was CS-10, with a load of 500 g and a rotation speed of 1000 r.

[0046] 3. Ice adhesion strength: At a temperature of -20 ± 1 °C, cylindrical ice columns with a freezing diameter of 1 cm and a height of 1 cm were frozen on the surfaces of different materials. A digital push-pull force gauge was used to measure the minimum force required for the ice column to slide on the material surface.

[0047] 4. Ice adhesion strength after abrasion with 120-mesh sandpaper: The coating was polished back and forth 10 times with a 120-mesh sandpaper under a force of 5 KG. Then, cylindrical ice columns with a freezing diameter of 1 cm and a height of 1 cm were frozen on the polished material surface. A digital push-pull force gauge was used to measure the minimum force required for the ice column to slide on the material surface.

[0048] The test results are shown in Table 1.

[0049] Table 1. Test results of the anti-icing coatings of Examples 1-3 and Comparative Examples 1-3

[0050] According to the above test results, it can be seen that the coating with WJ-50 microcapsules has good abrasion resistance and still maintains good anti-icing performance after being externally damaged. Through Comparative Examples 1 to 3, it can be found that when the wall thickness of the microcapsule particles is too large, the structure of the microcapsules is difficult to be damaged when the coating is under external force, resulting in the inability to release the internal long-chain alkane fatty acids and the inability to form an effective lubricating layer, so the improvement of the anti-icing effect is not significant. On the contrary, when the wall thickness of the microcapsule particles is too thin, the structure of the microcapsules is easily damaged when the coating is damaged by external force, thus significantly improving the anti-icing ability; however, this also leads to an increase in the wear amount of the coating, shortening the service life of the coating significantly at the same thickness.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An anti-icing coating composition, characterized in that, It comprises the following components: Component A: By weight percentage, it includes 50.0 - 70.0% of fluorocarbon resin, 0.5 - 1.0% of defoamer, 0.5 - 1.0% of dispersant, 3.0 - 14.0% of xylene, 10.0 - 20.0% of titanium dioxide, 10.0 - 20.0% of microcapsule particles, and 0.1 - 0.3% of leveling agent; Component B: By weight percentage, it includes 70.0 - 90.0% of isocyanate curing agent and 10 - 30% of xylene; The mass ratio of Component A to Component B is 100:

15.

2. The anti-icing coating composition according to claim 1, characterized in that, The wall thickness of the microcapsule particles is 20 - 80 nm.

3. The anti-icing coating composition according to claim 1, characterized in that, The particle size of the microcapsule particles is 350 - 550 nm.

4. The anti-icing coating composition according to claim 1, wherein The wall thickness of the microcapsule particles is 50 nm, and the particle size of the microcapsule particles is 400 - 500 nm.

5. The anti-icing coating composition according to claim 1, wherein The preparation method of the microcapsule particles includes the following steps: Step 1: Preparation of emulsion ① Preparation of aqueous phase: Dissolve sodium dodecyl sulfate in deionized water, add ammonium persulfate, and stir at 25 °C until the solution becomes clear; ② Preparation of oil phase: Mix long-chain alkane fatty acid, methyl methacrylate, and styrene evenly; ③ Pre-emulsification: Slowly add the oil phase to the aqueous phase, shear to form a coarse emulsion, and homogenize the coarse emulsion to obtain an emulsion; Step 2: Polymerization reaction React 100 grams of the emulsion under nitrogen protection at a temperature of 70 - 80 °C for 2 - 6 hours. The emulsion changes from a semi-transparent state to a milky white gel state. Add hydroquinone, and then quickly cool to 25 °C; Step 3: Purification and drying of microcapsules Add ethanol to the emulsion generated in Step 2, then centrifuge, remove the supernatant, and perform suction filtration and washing to ensure that the pH value of the filtrate reaches neutral. Freeze the powder obtained by suction filtration; then, under vacuum conditions, raise the temperature for sublimation drying, raise the temperature again and maintain it to obtain microcapsule particles with a wall thickness of 20 - 80 nm and a particle size range of 350 - 550 nm.

6. The anti-icing coating composition according to claim 1, characterized in that, The hydroxyl value of the fluorocarbon resin is 108 - 122 mgKOH / g, and the solid content is 54 - 58 wt%.

7. The anti-icing coating composition according to claim 1, characterized in that, For the isocyanate curing agent, the content of NCO groups is 23.1 - 23.5 wt%, and the solid content is 100 wt%.

8. A method for preparing an anti-icing coating composition according to any one of claims 1-7, characterized in that, It includes the following steps: Disperse and mix fluorocarbon resin, titanium dioxide, microcapsule particles, defoamer, dispersant, leveling agent, and xylene evenly until the fineness ≤ 30 microns to obtain Component A; Mix the isocyanate curing agent and xylene evenly to obtain Component B; Mix Component A and Component B to obtain the anti-icing coating composition.

Images