CN111995936B - Vinyl ester resin coating, super-hydrophobic coating, and preparation method and application thereof - Google Patents

Vinyl ester resin coating, super-hydrophobic coating, and preparation method and application thereof Download PDF

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CN111995936B
CN111995936B CN201910593604.4A CN201910593604A CN111995936B CN 111995936 B CN111995936 B CN 111995936B CN 201910593604 A CN201910593604 A CN 201910593604A CN 111995936 B CN111995936 B CN 111995936B
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刘华
段沙沙
吕学超
吕丽娜
陈军营
刘坐镇
吕晓平
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East China University of Science and Technology
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract

The invention relates to the technical field of nano coatings, in particular to a vinyl ester resin coating, a super-hydrophobic coating, and a preparation method and application thereof. In the vinyl ester resin coating provided by the invention, the modified vinyl ester resin is used as matrix resin and has better hydrophobicity; the micron-sized silicon dioxide can form a coarse structure on the surface of the coating, so that the obtained coating has better hydrophobicity; the active diluent can enable the micron-sized silicon dioxide to be better dispersed in matrix resin, is beneficial to the cross-linking and curing of the coating, does not need to use volatile solvents such as acetone, ethyl acetate and the like, and is green and environment-friendly; meanwhile, the oxygen polymerization inhibitor and the photoinitiator are matched, so that a super-hydrophobic coating can be formed by curing under the ultraviolet irradiation condition, the super-hydrophobic coating has good adhesive force, wear resistance and lasting super-hydrophobicity, and has good self-cleaning capability, and water drops can automatically roll off to take away dust and pollutants attached to the surface of the coating.

Description

Vinyl ester resin coating, super-hydrophobic coating, and preparation method and application thereof
Technical Field
The invention relates to the technical field of nano coatings, in particular to a vinyl ester resin coating, a super-hydrophobic coating, and a preparation method and application thereof.
Background
The super-hydrophobic phenomenon refers to a phenomenon in which the contact angle of the surface of an object with water is greater than 150 degrees and the rolling angle is less than 5 degrees. Because the super-hydrophobic phenomenon has important significance on the performances of the material, such as water resistance, ice resistance, self-cleaning and the like, great interest is brought to researchers.
In recent years, research on super-hydrophobic coatings at home and abroad has been rapidly developed, and some super-hydrophobic coating products are already appeared in the market. However, the super-hydrophobic coating obtained by adopting the existing super-hydrophobic coating has the problems of poor adhesive force, poor wear resistance and the like, and the durability of the hydrophobic effect is poor, so that the super-hydrophobic coating is difficult to be widely used in actual production.
Disclosure of Invention
The invention aims to provide a vinyl ester resin coating, a super-hydrophobic coating, and a preparation method and application thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a vinyl ester resin coating which comprises the following preparation raw materials in parts by weight:
30-55 parts of modified vinyl ester resin, wherein the modified vinyl ester resin is obtained by modifying vinyl ester resin with a silane coupling agent;
5-20 parts of micron-sized silicon dioxide;
35-65 parts of a reactive diluent;
0.05-2 parts of an oxygen polymerization inhibitor;
0.5-2 parts of a photoinitiator.
Preferably, the silane coupling agent includes isocyanatopropyltriethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma- (2, 3-glycidoxy) propyltrimethoxysilane, or gamma-aminopropyltriethoxysilane.
Preferably, the mass ratio of the vinyl ester resin to the silane coupling agent is 100: (5-30).
Preferably, the micron-sized silicon dioxide has a particle size of 5-10 μm.
Preferably, the reactive diluent comprises one or more of styrene, hydroxyethyl methacrylate, glycidyl methacrylate, tetrahydrofuran methacrylate, phenoxyethyl acrylate and tripropylene glycol diacrylate.
Preferably, the oxygen polymerization inhibitor comprises paraffin or thiodipropionate.
Preferably, the photoinitiator comprises one or more of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate, 2-hydroxy-2-methyl-1-phenyl acetone and 1-hydroxycyclohexyl phenyl ketone.
The invention provides a super-hydrophobic coating formed by the vinyl ester resin coating in the technical scheme.
The invention provides a preparation method of the super-hydrophobic coating, which comprises the following steps:
the vinyl ester resin coating is applied to the surface of a substrate to form a wet film, and then is cured under ultraviolet irradiation conditions to form a super-hydrophobic coating on the surface of the substrate.
The invention provides application of the super-hydrophobic coating in the technical scheme or the super-hydrophobic coating prepared by the preparation method in the technical scheme as an outer layer material of a radome, a building outer wall coating, a glass fiber reinforced plastic tank coating, a sewage pipeline coating or a hull drag reduction material.
The invention provides a vinyl ester resin coating which comprises the following preparation raw materials in parts by weight: 30-55 parts of modified vinyl ester resin, wherein the modified vinyl ester resin is obtained by modifying vinyl ester resin with a silane coupling agent; 5-20 parts of micron-sized silicon dioxide; 35-65 parts of a reactive diluent; 0.05-2 parts of an oxygen polymerization inhibitor; 0.5-2 parts of a photoinitiator. In the vinyl ester resin coating provided by the invention, the modified vinyl ester resin is used as matrix resin and has better hydrophobicity; the micron-sized silicon dioxide can form a coarse structure on the surface of the coating, so that the obtained coating has better hydrophobicity; the active diluent can enable the micron-sized silicon dioxide to be better dispersed in matrix resin, is beneficial to the cross-linking and curing of the coating, does not need to use volatile solvents such as acetone, ethyl acetate and the like, and is green and environment-friendly; meanwhile, an oxygen polymerization inhibitor and a photoinitiator are matched, so that a super-hydrophobic coating can be formed by curing under the ultraviolet irradiation condition, the super-hydrophobic coating has good adhesive force, wear resistance and lasting super-hydrophobicity, and has good self-cleaning capability, water drops can automatically roll off to take away dust and pollutants attached to the surface of the coating; meanwhile, the curing mode is energy-saving and environment-friendly, and is suitable for high-speed production work of a factory assembly line and outdoor large-area construction operation. The experimental result of the embodiment shows that the super-hydrophobic coating provided by the invention has excellent self-cleaning capability and good adhesive force, hardness and wear resistance, under the test condition of the embodiment, the contact angle is reduced a little after 35 wear cycles, the hardness is 3-4H, and the adhesive force ISO grade is 1.
Drawings
FIG. 1 is a graph of the infrared spectra of the modified vinyl ester resins prepared in example 1, example 2 and example 3 versus the pure vinyl ester resin;
FIG. 2 is a view showing a state where water drops are formed on the surface of the superhydrophobic coating layer prepared in example 2.
Detailed Description
The invention provides a vinyl ester resin coating which comprises the following preparation raw materials in parts by weight:
30-55 parts of modified vinyl ester resin, wherein the modified vinyl ester resin is obtained by modifying vinyl ester resin with a silane coupling agent;
5-20 parts of micron-sized silicon dioxide;
35-65 parts of a reactive diluent;
0.05-2 parts of an oxygen polymerization inhibitor;
0.5-2 parts of a photoinitiator.
In the invention, the raw materials for preparing the vinyl ester resin coating comprise 30-55 parts by weight of modified vinyl ester resin, preferably 35-45 parts by weight. In the invention, the modified vinyl ester resin is obtained by modifying a vinyl ester resin with a silane coupling agent; the preparation method of the modified vinyl ester resin preferably comprises the following steps:
mixing vinyl ester resin, an active diluent and a silane coupling agent, and reacting for 2-5 hours at the temperature of 70-80 ℃ to obtain the modified vinyl ester resin.
The vinyl ester resin of the present invention is not particularly limited in its origin, and may be obtained from commercially available products known to those skilled in the art or prepared by methods known to those skilled in the art. In an embodiment of the present invention, the method for preparing the vinyl ester resin preferably comprises the steps of:
mixing epoxy resin, methacrylic acid and a catalyst, reacting at 100-110 ℃, measuring the acid value every 25-35 min, stopping the reaction when the acid value is reduced to be below 5mgKOH/g, naturally cooling to 65-75 ℃, discharging when the temperature is hot, obtaining vinyl ester resin, and storing in a dark place.
In the present invention, the molar ratio of the epoxy resin to the methacrylic acid is preferably (1.01 to 1.05): 1. in the present invention, the epoxy resin preferably includes epoxy resin 127 or epoxy resin 128; the catalyst preferably comprises triethylamine, N-dimethylbenzylamine, trimethyl benzyl ammonium chloride, triphenyl phosphorus, triphenyl antimony, chromium acetylacetonate or tetraethyl ammonium bromide; the dosage of the catalyst is preferably 0.1-3% of the total mass of the epoxy resin and the methacrylic acid, and more preferably 0.5-2%.
After obtaining the vinyl ester resin, the present invention preferably mixes the vinyl ester resin, the reactive diluent, and the silane coupling agent to obtain a mixed material. In the present invention, the reactive diluent preferably comprises one or more of styrene, hydroxyethyl methacrylate, glycidyl methacrylate, tetrahydrofuran methacrylate, phenoxyethyl acrylate and tripropylene glycol diacrylate, and more preferably styrene, hydroxyethyl methacrylate, glycidyl methacrylate, tetrahydrofuran methacrylate, phenoxyethyl acrylate or tripropylene glycol diacrylate. In the present invention, the silane coupling agent preferably includes isocyanatopropyltriethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma- (2, 3-glycidoxy) propyltrimethoxysilane, or gamma-aminopropyltriethoxysilane. In the present invention, the mass ratio of the vinyl ester resin, the reactive diluent, and the silane coupling agent is preferably 100: (30-40): (5-30), more preferably 100: (33-37): (10-20).
After the mixed material is obtained, the reaction is preferably carried out for 2-5 hours at the temperature of 70-80 ℃ to obtain the modified vinyl ester resin. In the invention, the vinyl ester resin has polar hydroxyl and ester bonds, has good wettability and no hydrophobicity, is modified by adopting the silane coupling agent, and is grafted with a series of organosilicon long chains on the side chain of the vinyl resin, so that the surface energy of the vinyl ester resin can be reduced, and the hydrophobicity of the vinyl ester resin can be improved.
In the invention, based on the mass parts of the modified vinyl ester resin, the preparation raw material of the vinyl ester resin coating comprises 5-20 parts of micron-sized silicon dioxide, preferably 10-15 parts. In the invention, the granularity of the micron-sized silicon dioxide is preferably 5-10 μm. The source of the micron-sized silica is not particularly limited in the present invention, and commercially available products well known to those skilled in the art may be used; in the examples of the present invention, the micron-sized silica is preferably available from the German winning industry group, and specifically, the micron-sized silica of D10 type (initial average particle size of 6.5 μm) and D17 type (initial average particle size of 10 μm) is used. In the invention, the micron-sized silicon dioxide can form a rough structure on the surface of the coating (namely, the surface of the coating is uneven and has pits and bulges), so that the coating has a good super-hydrophobic effect; meanwhile, the addition of the micron-sized silicon dioxide can also enable the coating to have better adhesive force and wear resistance. The invention preferably controls the addition amount and the granularity of the micron-sized silicon dioxide, and is beneficial to improving the adhesive force, the wear resistance and the super-hydrophobicity of the coating.
In the invention, based on the mass parts of the modified vinyl ester resin, the preparation raw material of the vinyl ester resin coating comprises 35-65 parts of reactive diluent, preferably 35-50 parts; in the present invention, the reactive diluent as described herein is added in an amount that does not include the reactive diluent employed in the preparation of the modified vinyl ester resin. In the present invention, the reactive diluent preferably includes one or more of styrene, hydroxyethyl methacrylate, glycidyl methacrylate, tetrahydrofuran methacrylate, phenoxyethyl acrylate and tripropylene glycol diacrylate, more preferably styrene, hydroxyethyl methacrylate, glycidyl methacrylate, tetrahydrofuran methacrylate, phenoxyethyl acrylate or tripropylene glycol diacrylate, and further preferably glycidyl methacrylate. In the present invention, the type of reactive diluent used to prepare the vinyl ester resin coating may or may not be the same as the type of reactive diluent used to prepare the modified vinyl ester resin. The invention adopts the reactive diluent, so that the micron-sized silicon dioxide can be better dispersed in the modified vinyl ester resin, the crosslinking and curing of the coating are facilitated, volatile solvents such as acetone, ethyl acetate and the like are not required, and the preparation method is green and environment-friendly.
In the invention, the raw materials for preparing the vinyl ester resin coating comprise 0.05-2 parts of oxygen polymerization inhibitor, preferably 0.1-1.5 parts, and more preferably 0.1-0.5 parts by mass of the modified vinyl ester resin. In the present invention, the oxygen retardant preferably comprises paraffin or thiodipropionate. The invention adopts the oxygen polymerization inhibitor to effectively inhibit the polymerization inhibition of oxygen in the coating curing process, and is beneficial to the rapid curing of the coating.
In the invention, the preparation raw material of the vinyl ester resin coating comprises 0.5-2 parts of photoinitiator, preferably 1-2 parts, based on the mass parts of the modified vinyl ester resin. In the present invention, the photoinitiator preferably includes one or more of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide (TPO), ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate (TPO-L), 2-hydroxy-2-methyl-1-phenylpropanone (1173), and 1-hydroxycyclohexyl phenyl ketone (184), and more preferably 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate, 2-hydroxy-2-methyl-1-phenylpropanone, or 1-hydroxycyclohexyl phenyl ketone. In the invention, the photoinitiator can generate free radicals under the ultraviolet irradiation condition, so that the polymerization of monomers is initiated to generate crosslinking curing, and the super-hydrophobic coating is obtained.
The preparation method of the vinyl ester resin coating is not specially limited, and the vinyl ester resin coating is obtained by uniformly mixing the modified vinyl ester resin, the micron-sized silicon dioxide, the reactive diluent, the oxygen polymerization inhibitor and the photoinitiator. The invention has no special limitation on the feeding sequence and the mixing mode of the preparation raw materials, and can ensure that the preparation raw materials are uniformly mixed; in the embodiment of the invention, the modified vinyl ester resin and the reactive diluent are mechanically stirred and uniformly mixed, then the micron-sized silicon dioxide, the oxygen polymerization inhibitor and the photoinitiator are added into the obtained system, and the mixture is uniformly mixed under the ultrasonic condition to obtain the vinyl ester resin coating.
The invention provides the super-hydrophobic coating formed by the vinyl ester resin coating in the technical scheme, and the super-hydrophobic coating formed by the vinyl ester resin coating has good adhesive force, wear resistance and lasting super-hydrophobicity.
The invention provides a preparation method of the super-hydrophobic coating, which comprises the following steps:
the vinyl ester resin coating is applied to the surface of a substrate to form a wet film, and then is cured under ultraviolet irradiation conditions to form a super-hydrophobic coating on the surface of the substrate.
In the present invention, the substrate preferably includes an aluminum substrate, a fiber cloth substrate, or a glass fiber reinforced plastic substrate; in the present invention, the surface of the substrate specifically refers to the surface of the substrate to which the vinyl ester resin coating needs to be applied to form the super-hydrophobic coating.
The coating mode of the invention is not particularly limited, and the coating mode known to those skilled in the art can be adopted, specifically, brushing, spraying or dipping; in the present invention, the thickness of the wet film is preferably 0.05 to 0.5mm, and more preferably 0.1 to 0.3 mm.
In the present invention, the light source used for the curing preferably comprises an ultraviolet mercury lamp or an ultraviolet LED lamp, and the ultraviolet mercury lamp is preferably a high-pressure ultraviolet mercury lamp; the distance between the light source and the wet film is preferably 15-30 cm, and more preferably 20-25 cm; the time of the light source irradiation is preferably 1-15 min, and more preferably 3-10 min. In the present invention, the curing is preferably carried out at room temperature, i.e., without additional heating or cooling. The invention is cured under the ultraviolet irradiation condition, is energy-saving and environment-friendly, is not only suitable for high-speed production work of a factory assembly line, but also suitable for outdoor large-area construction operation, and simultaneously, the obtained super-hydrophobic coating has better adhesive force, wear resistance and lasting super-hydrophobicity.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
(1) Preparation of vinyl ester resins
Mixing epoxy resin 128, methacrylic acid (the molar ratio of the epoxy resin 128 to the methacrylic acid is 1.02: 1) and a catalyst (specifically N, N-dimethylbenzylamine, the addition amount is 0.5 percent of the total mass of the epoxy resin 128 and the methacrylic acid), reacting at 105 ℃, measuring the acid value once every 0.5h, stopping the reaction when the acid value is reduced to be below 5mgKOH/g, naturally cooling to 70 ℃, discharging while hot, obtaining the vinyl ester resin, and storing in a dark place.
(2) Preparation of modified vinyl ester resins
And adding glycidyl methacrylate (the addition amount is 35 percent of the mass of the vinyl resin) and isocyanatopropyl triethoxysilane (the addition amount is 10 percent of the mass of the vinyl resin) into the vinyl resin, and reacting for 3 hours at the temperature of 75 ℃ to obtain the modified vinyl ester resin.
(3) Preparation of vinyl ester resin coatings
And (2) mechanically stirring and uniformly mixing 15g of the modified vinyl ester resin and 18g of glycidyl methacrylate, adding 5g of micron-sized silicon dioxide (purchased from German winning and creating industry group, model D10, and the initial average particle size of 6.5 mu m), 0.08g of paraffin and 1g of photoinitiator TPO into the obtained system, and ultrasonically blending for 1h in an ultrasonic pot to obtain the vinyl ester resin coating.
(4) Preparation of superhydrophobic coatings
Brushing the vinyl ester resin coating on one side of an aluminum sheet to form a wet film with the thickness of about 0.1mm, and curing under the conditions of room temperature and ultraviolet lamp irradiation (with a high-pressure ultraviolet mercury lamp as a light source, the distance between the light source and the wet film being 20cm, and the irradiation time being 10min) to obtain the super-hydrophobic coating.
Example 2
A superhydrophobic coating was prepared according to the method of example 1, except that, in preparing the modified vinyl ester resin in the step (2), the silane coupling agent was added in an amount of 20% by mass of the vinyl resin.
Example 3
A superhydrophobic coating was prepared according to the method of example 1, except that, in the preparation of the modified vinyl ester resin in the step (2), the addition amount of the silane coupling agent was 20% by mass of the vinyl resin, and the reaction time was 5 hours; in the preparation of the vinyl ester resin coating in step (3), the amount of micron-sized silica added was 4 g.
Example 4
A superhydrophobic coating was prepared according to the method of example 1, except that, in the preparation of the modified vinyl ester resin in the step (2), the silane coupling agent was added in an amount of 30% by mass of the vinyl resin, and the reaction time was 5 hours.
Example 5
A superhydrophobic coating was prepared according to the method of example 1, except that, when the modified vinyl ester resin was prepared in step (2), the amount of the silane coupling agent added was 30% by mass of the vinyl resin, and the reaction time was 5 hours; in the preparation of the vinyl ester resin coating in step (3), the amount of micron-sized silica added was 3.5 g.
Example 6
A superhydrophobic coating was prepared according to the method of example 1, except that, in the preparation of the vinyl ester resin coating in step (3), the micro-sized silica was D17 type, and the primary average particle size was 10 μm.
Comparative example 1
Coatings were prepared as in example 1 except that the micron-sized silica was omitted during the preparation of the vinyl ester resin coating.
Comparative example 2
Coatings were prepared as in example 1, except that 5g of nanosilica (model R202 from the German winning industry group, initial average particle size 14nm) was added during the preparation of the vinyl ester resin coating.
Comparative example 3
A coating layer was prepared according to the method of example 1, except that the step (2) was omitted, i.e., the vinyl ester resin was not modified, and the vinyl ester resin was directly mixed as a raw material with other raw materials (i.e., glycidyl methacrylate, micron-sized silica, paraffin wax, and photoinitiator TPO) to prepare a vinyl ester resin coating material, and further a coating layer was prepared using the vinyl ester resin coating material as a raw material.
FIG. 1 is an infrared spectrum of a modified vinyl ester resin prepared in example 1 (corresponding to IEA10), example 2 (corresponding to IEA20) and example 3 (corresponding to IEA30) with a pure vinyl ester resin (corresponding to EA, i.e.unmodified vinyl ester resin), from which it can be seen in FIG. 1 that 3470cm-1Is at-OH absorption peak in unmodified vinyl ester resin, 3418cm-1The absorption peak is-NH, and the pure vinyl ester resin is at 3470cm-1Has an-OH absorption peak, and the-OH absorption peak shifts and widens rightward at 3418cm after addition of isopropyltriethoxysilane Isocyanate (IPTS)-1A new absorption peak appears, which is an absorption peak of-NH, indicating that the hydroxyl group on the side chain of EA reacts with the-NCO group on the side chain of IPTS, and IPTS is grafted to EA.
Fig. 2 is a view showing a state where a water droplet is formed on the surface of the superhydrophobic coating layer prepared in example 2, and it can be seen from fig. 2 that the water droplet is beaded on the surface of the superhydrophobic coating layer, and the contact angle of water is 153 °.
The coatings prepared in examples 1-6 and comparative examples 1-3 were subjected to performance tests, specifically as follows:
(1) the experimental method for the wear resistance test comprises the following steps: laying 150-mesh abrasive cloth on the coating, then placing a 200g weight on the abrasive cloth, slightly and uniformly pulling the weight to and fro (the single effective length is 20cm, namely the length of one to and fro is 40cm in total) to record as a wear cycle, and testing the contact angles of the coating before and after 35 wear cycles so as to compare the performance difference of the coating before and after wear; (2) the hardness is tested by a BEVS1301 pencil hardness meter according to the method specified in GB/T6739-86;
(3) the adhesion was tested using a BEVS2202 model ruling device, according to the method specified in GB/T9286-98.
The results of the performance tests are listed in table 1.
TABLE 1 Performance test results for coatings prepared in examples 1-6 and comparative examples 1-3
Figure BDA0002116882430000091
Figure BDA0002116882430000101
According to the data in table 1, it can be seen from comparative examples 1, 2 and 4 that the contact angle of the coating gradually increases with the increase of the silane content, because the low surface energy silicone is easy to migrate to the surface of the coating after the silicone long chain is grafted to the vinyl resin main chain, so that the surface energy is reduced, and the hydrophobicity is improved, and when the silane addition amount is within 30%, the hardness and the adhesion force of the coating are not affected;
comparing example 2 and example 3 (example 4 or example 5), it can be seen that the contact angle of the coating increases with the content of the micro-sized silica, because the more the content of the micro-sized silica, the more the roughness structure of the coating surface is obvious, which is more beneficial to the hydrophobicity of the coating, but the excessive micro-sized silica reduces the hardness of the coating;
as can be seen from example 1 and comparative example 1, the contact angle of the coating without the addition of the micron-sized silica is relatively small, and the hydrophobicity of the coating is obviously improved after the addition of the micron-sized silica;
as can be seen from the examples 1 and the comparative examples 2, the coating obtained in the comparative example 2 has higher viscosity and is not easy to coat due to small particle size and small density of the nano-silicon dioxide, and the coating after the coating is cured is easy to crack, so that the hardness and the adhesive force of the coating are poor;
it can be seen from example 1 and comparative example 3 that the coating prepared with the modified vinyl resin has stronger hydrophobicity.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The vinyl ester resin super-hydrophobic coating is characterized by comprising the following preparation raw materials in parts by mass:
30-55 parts of modified vinyl ester resin, wherein the modified vinyl ester resin is obtained by modifying vinyl ester resin with a silane coupling agent, and the silane coupling agent is isocyanatopropyl triethoxysilane, gamma-methacryloxypropyl trimethoxysilane, gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane or gamma-aminopropyl triethoxysilane; the mass ratio of the vinyl ester resin to the silane coupling agent is 100: (5-30);
5-20 parts of micron-sized silicon dioxide; the granularity of the micron-sized silicon dioxide is 5-10 mu m;
35-65 parts of a reactive diluent;
0.05-2 parts of an oxygen polymerization inhibitor;
0.5-2 parts of a photoinitiator.
2. The vinyl ester resin superhydrophobic coating of claim 1, wherein the reactive diluent comprises one or more of styrene, hydroxyethyl methacrylate, glycidyl methacrylate, tetrahydrofurfuryl methacrylate, phenoxyethyl acrylate, and tripropylene glycol diacrylate.
3. The vinyl ester resin superhydrophobic coating of claim 1, wherein the oxygen polymerization inhibitor comprises a paraffin wax or a thiodipropionate.
4. The vinyl ester resin superhydrophobic coating of claim 1, wherein the photoinitiator comprises one or more of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, ethyl 2,4, 6-trimethylbenzoylphenylphosphonate, 2-hydroxy-2-methyl-1-phenylpropanone, and 1-hydroxycyclohexylphenylketone.
5. A superhydrophobic coating formed from a superhydrophobic coating of a vinyl ester resin according to any of claims 1-4.
6. A process for the preparation of the superhydrophobic coating of claim 5, comprising the steps of:
the vinyl ester resin super-hydrophobic coating is applied to the surface of a substrate to form a wet film, and then is cured under ultraviolet irradiation conditions to form a super-hydrophobic coating on the surface of the substrate.
7. Use of the superhydrophobic coating of claim 5 or the superhydrophobic coating prepared by the preparation method of claim 6 as a radome outer material, an exterior wall coating of a building, a glass fiber reinforced plastic tank coating, a sewage pipeline coating or a hull drag reduction material.
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Publication number Priority date Publication date Assignee Title
CN113772957B (en) * 2021-08-17 2023-03-21 浙江理工大学 Preparation of modified carbonyl iron powder for magnetic control super-hydrophobic surface construction and application of modified carbonyl iron powder in blue light curing super-hydrophobic film

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102203195A (en) * 2008-10-31 2011-09-28 帝斯曼知识产权资产管理有限公司 Antifouling coating composition comprising functionalized nanoparticules
CN107384191A (en) * 2017-08-18 2017-11-24 中国工程物理研究院材料研究所 A kind of super-hydrophobic coat for the method and its preparation for preparing flexible super-hydrophobic coat
CN107760065A (en) * 2017-09-22 2018-03-06 国网山东省电力公司电力科学研究院 A kind of method of modifying of super-hydrophobic filler grain for antifouling flush paint and application
CN107868229A (en) * 2017-11-30 2018-04-03 华东理工大学华昌聚合物有限公司 One kind is without styrene epoxy vinyl ester resin synthesis technique
CN107936192A (en) * 2017-11-24 2018-04-20 上纬新材料科技股份有限公司 It is a kind of to cure vinyl ester resin composition without styrene high chemical resistance ultraviolet light
CN109504180A (en) * 2018-12-05 2019-03-22 赵晓锐 A kind of ink paste and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090266585A1 (en) * 2005-03-31 2009-10-29 Showda Denko K.K. Flame-Retardant Composition for Solder Resist and Cured Product Thereof
FR3044243A1 (en) * 2015-11-26 2017-06-02 Michelin & Cie METHOD OF DEPOSITING A METAL, HYDROPHOBIC AND ELECTRICALLY CONDUCTIVE ADHESIVE COATING

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102203195A (en) * 2008-10-31 2011-09-28 帝斯曼知识产权资产管理有限公司 Antifouling coating composition comprising functionalized nanoparticules
CN107384191A (en) * 2017-08-18 2017-11-24 中国工程物理研究院材料研究所 A kind of super-hydrophobic coat for the method and its preparation for preparing flexible super-hydrophobic coat
CN107760065A (en) * 2017-09-22 2018-03-06 国网山东省电力公司电力科学研究院 A kind of method of modifying of super-hydrophobic filler grain for antifouling flush paint and application
CN107936192A (en) * 2017-11-24 2018-04-20 上纬新材料科技股份有限公司 It is a kind of to cure vinyl ester resin composition without styrene high chemical resistance ultraviolet light
CN107868229A (en) * 2017-11-30 2018-04-03 华东理工大学华昌聚合物有限公司 One kind is without styrene epoxy vinyl ester resin synthesis technique
CN109504180A (en) * 2018-12-05 2019-03-22 赵晓锐 A kind of ink paste and preparation method thereof

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