CN115975508B - Photo-cured anti-fog wear-resistant layer material, photo-cured anti-fog anti-reflection coating and preparation methods thereof - Google Patents
Photo-cured anti-fog wear-resistant layer material, photo-cured anti-fog anti-reflection coating and preparation methods thereof Download PDFInfo
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Abstract
The application relates to the field of anti-fog coating, and particularly discloses a photo-curing anti-fog wear-resistant layer material, a photo-curing anti-fog anti-reflection coating and a preparation method thereof. The photocuring anti-fog wear-resistant layer material comprises 30-50 parts of super-hydrophilic photocuring resin, 20-30 parts of wear-resistant resin, 3-5 parts of super-hydrophilic auxiliary agent I, 3-5 parts of super-hydrophilic auxiliary agent II, 8-15 parts of nano alumina, 3-5 parts of photoinitiator I, 2-4 parts of photoinitiator II and 10-20 parts of PM solvent; the photocuring anti-fog anti-reflection coating comprises an outer layer material, a bottom layer material, a coating layer material and a protective layer material which are prepared from photocuring anti-fog wear-resistant layer material; the preparation method of the photo-cured anti-fog anti-reflection coating comprises the steps of preparing a base layer material, preparing a coating layer material, preparing a protective layer material and preparing a photo-cured anti-fog wear-resistant layer material. The application provides a photocuring anti-fog wear-resistant layer material, a photocuring anti-fog anti-reflection coating and a preparation method thereof, and the photocuring anti-fog wear-resistant layer material has good anti-fog performance, wear-resistant performance and anti-reflection effect.
Description
Technical Field
The application relates to the field of anti-fog paint, in particular to a photo-curing anti-fog wear-resistant layer material, a photo-curing anti-fog paint and a preparation method thereof.
Background
When the temperature of the water vapor in the air is lower than the dew point, the water vapor is condensed into tiny droplets to form mist. This phenomenon often occurs on the surfaces of glass-made automobile rearview mirrors and windshields, or on the surfaces of other transparent materials, such as ophthalmic lenses, medical masks, fire helmets, gas masks, intelligent bathroom lights, intelligent refrigerator display panels, and the like. As a result of the easy atomization of the water droplets on the surface of the transparent material, the light transmittance is reduced, and the vision is affected.
In order to solve the problem that the surface of the transparent material is easy to fog, the existing transparent material can be provided with a photo-curing anti-fog coating layer on the surface so as to slow down or prevent the phenomenon that the surface of the transparent material is atomized. The photo-curing anti-fog coating is a coating which utilizes ultraviolet light to decompose a photoinitiator in the anti-fog coating to generate free radicals or cation active centers so as to initiate free radical polymerization or cation polymerization reaction of monomers and resin, thereby curing the anti-fog coating.
However, the existing photo-curing anti-fog coating is difficult to ensure the wear resistance, and the anti-fog performance of the transparent material coated with the photo-curing anti-fog coating is reduced after the transparent material is used for a period of time.
Disclosure of Invention
In order to improve the wear resistance of the photo-cured anti-fog coating, the photo-cured anti-fog wear-resistant layer material, the photo-cured anti-fog anti-reflection coating and the preparation method thereof are provided.
The application provides a photocuring anti-fog wear-resistant layer material, a photocuring anti-fog anti-reflection coating and a preparation method thereof, which adopts the following technical scheme:
in a first aspect, the application provides a photo-curing anti-fog wear-resistant layer material, which adopts the following technical scheme:
the photocuring anti-fog wear-resistant layer material comprises the following components in parts by weight: 30-50 parts of super-hydrophilic photo-curing resin, 20-30 parts of wear-resistant resin, 3-5 parts of super-hydrophilic auxiliary agent I, 3-5 parts of super-hydrophilic auxiliary agent II, 8-15 parts of nano alumina, 3-5 parts of photoinitiator I, 2-4 parts of photoinitiator II and 10-20 parts of PM solvent.
By adopting the technical scheme, the photocuring anti-fog wear-resistant layer material with good anti-fog performance and wear-resistant performance can be obtained, and experimental results show that the transparent material coated with the photocuring anti-fog wear-resistant layer material has reduced fog on the surface of the transparent material, and the wear degree of a coating formed by coating the photocuring wear-resistant layer material is smaller in wear-resistant performance test. The reason for analysis is that under the radiation effect of ultraviolet light, the super-hydrophilic light-cured resin and the wear-resistant resin can be polymerized on the surface of the transparent material through the light initiator I and the light initiator II in the components to form a hydrophilic cross-linked network structure, and hydrophilic groups in the super-hydrophilic auxiliary agent I and the super-hydrophilic auxiliary agent II can improve the hydrophilicity of the light-cured anti-fog wear-resistant layer material. The hydrophilicity of the photo-curing anti-fog wear-resistant layer material can enable water drops condensed on the surface of the coating to be unfolded and thinned, so that refraction and reflection of light are reduced, and further the problems that the light transmittance of a transparent material is reduced and vision is influenced due to atomization of the water drops are solved. Meanwhile, the wear-resistant resin can improve the fineness and uniformity of the cross-linked network structure under the action of nano alumina, so that a hard and friction-resistant network structure is obtained.
Optionally, the functionality of the wear-resistant resin is more than or equal to 6.
By adopting the technical scheme, when the functionality of the wear-resistant resin is more than or equal to 6, the wear-resistant resin has higher crosslinking density in the photo-curing process, the photo-curing speed of the photo-curing wear-resistant layer material can be improved, and the anti-fog wear-resistant coating formed by coating the photo-curing wear-resistant layer material has higher hardness and wear resistance.
Optionally, the nano alumina has a particle size of < 5 μm.
By adopting the technical scheme, the nano alumina has good dispersing effect with the particle diameter smaller than 5 mu m, has larger specific interface, strong binding capacity and higher hardness of a coating formed by coating the photo-curing anti-fog wear-resistant layer material on the surface of the transparent material.
Optionally, the refractive indexes of the super-hydrophilic auxiliary agent I and the super-hydrophilic auxiliary agent II are 1.4-1.5.
By adopting the technical scheme, the refractive indexes of the super-hydrophilic auxiliary agent I and the super-hydrophilic auxiliary agent II are 1.4-1.5, and the super-hydrophilic auxiliary agent I and the super-hydrophilic auxiliary agent II keep smaller refractive indexes, so that the influence of the super-hydrophilic auxiliary agent I and the super-hydrophilic auxiliary agent II on the light transmittance of the photo-curing anti-fog wear-resistant layer material is reduced, and the light transmittance of the photo-curing anti-fog wear-resistant layer material is improved.
In a second aspect, the application provides a photo-curing anti-fog anti-reflection coating, which adopts the following technical scheme:
the light-cured anti-fog anti-reflection coating comprises an outer layer material prepared from light-cured anti-fog wear-resistant layer material, a bottom layer material, a coating layer material and a protective layer material;
the bottom layer material comprises the following components in parts by weight: 20-40 parts of bottom layer photo-curing resin I, 15-30 parts of bottom layer photo-curing resin II, 3-5 parts of bottom layer photo-initiator I, 1-3 parts of bottom layer photo-initiator II, 10-20 parts of ACMO monomer, 2-5 parts of silane coupling agent, 15-20 parts of IBOMA monomer, 8-15 parts of photo-curing resin III and 10-15 parts of PM solvent;
the coating layer material comprises silicon dioxide and zirconium dioxide, wherein the weight ratio of the silicon dioxide to the zirconium dioxide is 1: (1-4);
the protective layer material comprises the following components in parts by weight: 20-40 parts of protective layer photo-curing resin I, 10-20 parts of HEMA monomer, 25-40 parts of protective layer photo-curing resin II, 3-5 parts of phosphate acrylate, 2-4 parts of protective layer photoinitiator I, 1-3 parts of protective layer photoinitiator II, 0.5-1 part of protective layer photoinitiator III, 10-20 parts of UV monomer and 10-20 parts of triisobutyl ketone solvent.
By adopting the technical scheme, the primer is coated on the surface of the transparent material to form the bottom layer, the primer has better adhesive force and mirror surface leveling effect on the surface of the transparent material, and the analysis is possible because the ACMO monomer and the IBOMA monomer are used as active diluents, so that the viscosity of the primer can be reduced, the coating formed by the primer coating has good flexibility, and a certain adhesive force is provided for the transparent material. The silicon dioxide and zirconium dioxide in the coating layer material can form a coating layer on the outer side of the bottom layer through a coating process so as to increase the light transmittance of the photo-curing anti-fog anti-reflection coating.
In the experimental process, the outer layer material is simply coated on the surface of the coating layer formed by the coating process, and the bonding effect of the outer layer material and the coating layer material is poor, so that the adhesive force of the outer layer material on the coating layer is poor. In order to improve the bonding effect between the outer layer material and the coating layer material, a protective layer is formed between the outer layer material and the coating layer material through the protective layer material, interlayer adhesion is provided between the outer layer material and the coating layer material, and the reason for analysis is probably that phosphate radical in phosphate acrylate can be adsorbed with zirconium dioxide in the coating layer material and is matched with other components in the protective layer material to form the protective layer which is beneficial to the adhesion of the outer layer material through the photo-curing effect.
Optionally, the bottom layer photoinitiator I is 819 photoinitiator, and the bottom layer photoinitiator II is TPO photoinitiator.
Through adopting above-mentioned technical scheme, 819 photoinitiator is used to bottom photoinitiator I, and bottom photoinitiator II is TPO photoinitiator, can reach deep solidification's effect for the solidification effect of bottom material is good.
Optionally, the protective layer photoinitiator I is 819 photoinitiator, the protective layer photoinitiator II is TPO photoinitiator, and the protective layer photoinitiator III is 784 photoinitiator.
By adopting the technical scheme, the protective layer photoinitiator I in the protective layer material is 819 photoinitiator, the protective layer photoinitiator II is TPO photoinitiator, and the protective layer photoinitiator III is 784 photoinitiator, so that the light curing effect of the protective layer material is facilitated.
In a third aspect, the application provides a preparation method of a photo-curing anti-fog anti-reflection coating, which adopts the following technical scheme:
the preparation method of the photo-curing anti-fog anti-reflection coating comprises the following steps:
preparing a bottom layer material: stirring the weighed components of the primer for 1-2 hours at the rotating speed of 1000-1200 r/min at room temperature to prepare the primer by uniformly mixing;
and (3) preparing a coating layer material: uniformly mixing the components of the coating layer to prepare target raw materials required by preparing the coating layer by magnetron sputtering;
preparing a protective layer material: stirring the weighed components of the protective layer material for 1-2 hours at the rotating speed of 1000-1200 r/min at room temperature to prepare the protective layer coating by uniformly mixing;
and (3) preparing an outer layer material: and stirring the weighed components of the outer layer material for 30-60 min at the rotating speed of 1000-1200 r/min at room temperature to uniformly mix the components to prepare the outer layer coating.
By adopting the technical scheme, the photocuring anti-fog anti-reflection coating with good anti-fog performance, wear resistance and light transmittance can be prepared.
In summary, the application has the following beneficial effects:
1. the photocuring anti-fog wear-resistant layer material has good anti-fog performance and wear-resistant performance, a hydrophilic cross-linked network structure can be formed after photocuring, so that condensed water drops are unfolded and thinned to play a role in anti-fog, in addition, the wear-resistant resin can improve the fineness and uniformity of the cross-linked network structure under the action of nano alumina, and a coating formed by coating the photocuring anti-fog wear-resistant layer material has good wear-resistant performance;
2. the photo-curing anti-fog anti-reflection coating obtained by the application has good anti-reflection effect, strong adhesive force and long anti-fog effect.
Detailed Description
The present application will be described in further detail below.
Introduction of raw materials
Table 1 raw materials for preparing photo-curable antifogging and antireflective coating
Examples
Example 1
The photocuring anti-fog anti-reflection coating comprises a photocuring primer layer material, a coating layer material, a protective layer material and a photocuring anti-fog wear-resistant layer material;
the photocuring anti-fog wear-resistant layer material comprises the following components: 30kg of super-hydrophilic photo-curing resin, 30kg of wear-resistant resin, 3kg of super-hydrophilic auxiliary agent I, 5kg of super-hydrophilic auxiliary agent II, 8kg of nano-alumina, 5kg of photoinitiator I, 2kg of photoinitiator II and 20kg of PM solvent;
the bottom layer material comprises the following components: 20kg of bottom layer light-cured resin I, 30kg of bottom layer light-cured resin II, 3kg of bottom layer light-induced agent I, 3kg of bottom layer light-induced agent II, 10kg of ACMO monomer, 5kg of silane coupling agent, 15kg of IBOMA monomer, 15kg of light-cured resin III and 10kg of PM solvent;
the coating layer material comprises silicon dioxide and zirconium dioxide in a weight ratio of 1:1, and the thickness of the coating layer is 400nm;
and (3) protective layer material: 40kg of a protective layer photo-curing resin I, 10kg of HEMA monomer, 40kg of a protective layer photo-curing resin II, 3kg of phosphate acrylate, 4kg of a protective layer photo-initiator I, 1kg of a protective layer photo-initiator II, 1kg of a protective layer photo-initiator III, 10kg of UV monomer and 20kg of triisobutyl ketone solvent;
the preparation method of the photo-curing anti-fog anti-reflection coating comprises the following steps:
preparing a bottom layer material: stirring the weighed components of the primer for 2 hours at the rotating speed of 1000r/min at room temperature to uniformly mix the components to prepare the primer;
and (3) preparing a coating layer material: uniformly mixing the components of the coating layer to prepare target raw materials required by preparing the coating layer by magnetron sputtering;
preparing a protective layer material: stirring the weighed components of the protective layer material for 1h at the rotating speed of 1200r/min at room temperature to uniformly mix the components to prepare the protective layer coating;
and (3) preparing an outer layer material: and stirring the weighed components of the outer coating for 30min at the rotation speed of 1100r/min at room temperature to uniformly mix the components to obtain the outer coating.
Example 2
The photocuring anti-fog anti-reflection coating comprises a photocuring primer layer material, a coating layer material, a protective layer material and a photocuring anti-fog wear-resistant layer material;
the photocuring anti-fog wear-resistant layer material comprises the following components: 50kg of super-hydrophilic photo-curing resin, 20kg of wear-resistant resin, 5kg of super-hydrophilic auxiliary agent I, 3kg of super-hydrophilic auxiliary agent II, 15kg of nano-alumina, 3kg of photoinitiator I, 4kg of photoinitiator II and 10kg of PM solvent;
the bottom layer material comprises the following components: 40kg of bottom layer light-cured resin I, 15kg of bottom layer light-cured resin II, 5kg of bottom layer light-induced agent I, 1kg of bottom layer light-induced agent II, 20kg of ACMO monomer, 2kg of silane coupling agent, 20kg of IBOMA monomer, 8kg of light-cured resin III and 15kg of PM solvent;
the coating layer material comprises silicon dioxide and zirconium dioxide in a weight ratio of 1:4, and the thickness of the coating layer is 400nm;
and (3) protective layer material: 20kg of protective layer photo-curing resin I, 20kg of HEMA monomer, 25kg of protective layer photo-curing resin II, 5kg of phosphate acrylate, 2kg of protective layer photo-initiator I, 3kg of protective layer photo-initiator II, 0.5kg of protective layer photo-initiator III, 20kg of UV monomer and 10kg of triisobutyl ketone solvent;
the preparation method of the photo-curing anti-fog anti-reflection coating comprises the following steps:
preparing a bottom layer material: stirring the weighed components of the primer for 2 hours at the rotating speed of 1000r/min at room temperature to uniformly mix the components to prepare the primer;
and (3) preparing a coating layer material: uniformly mixing the components of the coating layer to prepare target raw materials required by preparing the coating layer by magnetron sputtering;
preparing a protective layer material: stirring the weighed components of the protective layer material for 1h at the rotating speed of 1200r/min at room temperature to uniformly mix the components to prepare the protective layer coating;
and (3) preparing an outer layer material: and stirring the weighed components of the outer coating for 30min at the rotation speed of 1100r/min at room temperature to uniformly mix the components to obtain the outer coating.
Example 3
The photocuring anti-fog anti-reflection coating comprises a photocuring primer layer material, a coating layer material, a protective layer material and a photocuring anti-fog wear-resistant layer material;
the photocuring anti-fog wear-resistant layer material comprises the following components: 45kg of super-hydrophilic photo-curing resin, 25kg of wear-resistant resin, 4kg of super-hydrophilic auxiliary agent I, 4kg of super-hydrophilic auxiliary agent II, 10kg of nano-alumina, 4kg of photoinitiator I, 3kg of photoinitiator II and 15kg of PM solvent;
the bottom layer material comprises the following components: 30kg of bottom layer light-cured resin I, 25kg of bottom layer light-cured resin II, 4kg of bottom layer light-induced agent I, 2kg of bottom layer light-induced agent II, 15kg of ACMO monomer, 4kg of silane coupling agent, 17kg of IBOMA monomer, 12kg of light-cured resin III and 12kg of PM solvent;
the coating layer material comprises silicon dioxide and zirconium dioxide in a weight ratio of 1:2, and the thickness of the coating layer is 400nm;
and (3) protective layer material: 30kg of a protective layer photo-curing resin I, 15kg of HEMA monomer, 30kg of a protective layer photo-curing resin II, 4kg of phosphate acrylate, 3kg of a protective layer photo-initiator I, 2kg of a protective layer photo-initiator II, 0.8kg of a protective layer photo-initiator III, 15kg of UV monomer and 15kg of triisobutyl ketone solvent;
the preparation method of the photo-curing anti-fog anti-reflection coating comprises the following steps:
preparing a bottom layer material: stirring the weighed components of the primer for 2 hours at the rotating speed of 1000r/min at room temperature to uniformly mix the components to prepare the primer;
and (3) preparing a coating layer material: uniformly mixing the components of the coating layer to prepare target raw materials required by preparing the coating layer by magnetron sputtering;
preparing a protective layer material: stirring the weighed components of the protective layer material for 1h at the rotating speed of 1200r/min at room temperature to uniformly mix the components to prepare the protective layer coating;
and (3) preparing an outer layer material: and stirring the weighed components of the outer coating for 30min at the rotation speed of 1100r/min at room temperature to uniformly mix the components to obtain the outer coating.
Comparative example
Comparative example 1
Comparative example 1 differs from example 3 in that the same amount of 7605B photo-curable resin was used in place of the super hydrophilic photo-curable resin in the photo-curable anti-fog abrasion-resistant layer material.
Comparative example 2
Comparative example 2 differs from example 3 in that the same amount of methyl methacrylate was used in the photocurable anti-fog abrasion-resistant layer material instead of the super-hydrophilic auxiliary i.
Comparative example 3
Comparative example 3 differs from example 3 in that the equivalent amount of methyl methacrylate was used in the photocurable anti-fog abrasion-resistant layer material instead of the super-hydrophilic auxiliary II.
Comparative example 4
Comparative example 4 is different from example 3 in that the addition amount of the super hydrophilic photocurable resin in the photocurable antifogging abrasion-resistant layer material was 80kg.
Comparative example 5
Comparative example 5 differs from example 3 in that the amount of super hydrophilic auxiliary I added to the photo-curable antifogging abrasion-resistant layer material was 8kg.
Comparative example 6
Comparative example 6 differs from example 3 in that the equivalent amount of 7605B photo-curable resin was used in the photo-curable anti-fog wear layer material instead of the wear resin.
Comparative example 7
Comparative example 7 differs from example 3 in that no nano alumina was added to the photo-cured anti-fog wear layer material.
Comparative example 8
Comparative example 8 differs from example 3 in that the addition amount of the abrasion-resistant resin in the photo-curable antifogging abrasion-resistant layer material was 45kg.
Comparative example 9
Comparative example 9 differs from example 3 in that the amount of nano alumina added in the photo-curable antifogging wear resistant layer material was 18kg.
Comparative example 10
Comparative example 10 differs from example 3 in that only the coating layer material and the photo-curable antifogging abrasion-resistant layer material were provided in the photo-curable antifogging antireflection coating.
Comparative example 11
Comparative example 11 differs from example 3 in that no primer was provided in the photo-curable anti-fog antireflective coating.
Comparative example 12
Comparative example 12 differs from example 3 in that the amount of ACMO monomer added in the base stock was 25kg.
Comparative example 13
Comparative example 13 differs from example 3 in that the IBOMA monomer was added to the primer in an amount of 25kg.
Comparative example 14
Comparative example 14 differs from example 3 in that no protective layer material was provided in the photo-curable anti-fog and anti-reflection coating.
Comparative example 15
Comparative example 15 differs from example 3 in that the equivalent amount of adhesion promoter was used in the overcoat material instead of the phosphate acrylate.
Comparative example 16
Comparative example 16 differs from example 3 in that no phosphate acrylate was added to the overcoat material.
Comparative example 17
Comparative example 17 is different from example 3 in that the amount of phosphate acrylate added to the overcoat material was 2kg.
Comparative example 18
Comparative example 18 differs from example 3 in that the amount of phosphate acrylate added to the overcoat material was 8kg.
Performance detection
Preparing a detection sample: the photocurable anti-fog and anti-reflection coating materials prepared in the above examples 1 to 3 and comparative examples 1 to 8 were coated on the surface of the glass sheet in the order of coating the primer on the surface of the glass sheet with a coating thickness of 1.2 μm, and energy of 500mJ/cm was applied after the coating 2 UV-curing of (a) to form a base layer; forming a coating layer on the surface of the bottom layer by using a coating layer material through a magnetron sputtering process; coating a protective layer material on the surface of the coating layer, wherein the coating thickness is 1.2 mu m, and the energy is 500mJ/cm after coating 2 UV curing of (a) to form a protective layer; coating a photocuring anti-fog wear-resistant layer material on the surface of the protective layer, wherein the coating thickness is 1.2 mu m, and the energy is 500mJ/cm after coating 2 To form an outer layer (no primer and protective layer were provided in comparative example 10, no primer was provided in comparative example 11, and no protective layer was provided in comparative example 14).
Anti-fog performance test: the samples prepared in examples 1 to 3 and comparative examples 1 to 8 were placed above a constant temperature water bath at 80℃and the transparency and fogging of the sample surface were observed within 5 minutes, and the fogging degree was scored, and the smaller the fogging degree was, the higher the score was, and the full score was 10 minutes.
And (3) water resistance test: initial hydrophilic angle: respectively dripping 4 mu L of deionized water on the surfaces of the samples prepared in the examples 1-3 and the comparative examples 1-8, and measuring the surfaces by a contact angle tester at 20-25 ℃; continuous hydrophilic angle: the sample is put into deionized water to be soaked for 100 hours, and is measured by a contact angle tester at 20-25 ℃ after being naturally dried.
Light transmittance test: the samples prepared in examples 1 to 3 and comparative examples 1 to 8 above were subjected to light transmittance test by a visible light transmittance test instrument TM-3.
Abrasion resistance test: the surface of the samples prepared in examples 1 to 3 and comparative examples 1 to 8 was rubbed back and forth 1000 times with 0000# steel wool (load 1 kg), and then the degree of the surface of the sample was observed. 0: the surface is basically free of scratches; 1: not ground, but the surface of the sample has a certain number of scratches; 2: the surface of the sample was completely ground.
Adhesion test: the samples prepared in examples 1 to 3 and comparative examples 1 to 8 above were tested for adhesion of the coating on the surface using a 3m 610 tape, a hundred method.
The evaluation method comprises the following steps: 5B, the scribing edge is smooth, and no coating is dropped off at the scribing edge and the crossing point; 4B-there is a small flake of coating shed at the intersection of the scribe lines and the total shed area is less than 5%; 3B-coating of small pieces is peeled off at the edges and the crossing points of the scribing lines, and the total peeled-off area is between 5 and 15 percent; 2B-a piece of coating is peeled off at the edge and the crossing point of the scribing line, and the total peeling area is 15-35%; 1B-a piece of coating is peeled off at the edge and the crossing point of the scribing line, and the total peeling area is between 35 and 65 percent; 0B-there is flaking of the coating at the edges and intersections of the scribe lines and the total area of flaking is greater than 65%.
Hardness testing: the hardness test was carried out on the samples prepared in examples 1 to 3 and comparative examples 1 to 8 according to the national standard GB/T6739 pencil test for hardness of paint film.
TABLE 2 results of Performance test of samples prepared in examples 1 to 3 and comparative examples 1 to 8
From the test data shown in Table 2, it can be seen from examples 1 to 3, comparative examples 1 to 5 and comparative example 10 that the transparent material coated with the photo-curable anti-fog and wear-resistant layer material has reduced fogging on the surface of the transparent material, and the analysis is that the photo-curable anti-fog and wear-resistant layer material can polymerize super-hydrophilic photo-curable resin and wear-resistant resin through the photoinitiator I and the photoinitiator II in the components under the irradiation of ultraviolet light to form a hydrophilic crosslinked network structure on the surface of the transparent material, and hydrophilic groups in the super-hydrophilic auxiliary I and the super-hydrophilic auxiliary II can improve the hydrophilicity of the photo-curable anti-fog and wear-resistant layer material. The hydrophilicity of the photo-curing anti-fog wear-resistant layer material can enable water drops condensed on the surface of the coating to be unfolded and thinned, so that refraction and reflection of light are reduced, and further the problems that the light transmittance of a transparent material is reduced and vision is influenced due to atomization of the water drops are solved.
As can be seen from the test data of example 3 and comparative examples 6 to 9, the photo-cured anti-fog wear-resistant layer material obtained by the application has good wear resistance, and in the wear resistance test, the wear degree of the coating formed by coating the photo-cured wear-resistant layer material is smaller, and the analysis is probably because the wear-resistant resin can improve the fineness and uniformity degree of the crosslinked network structure under the action of nano alumina, so as to obtain the hard and wear-resistant network structure.
As can be seen from example 3 and comparative examples 11 to 13, in all of the comparative examples 11 to 13, the transparent material was leaked out in the adhesion test, and it was found that the primer was coated on the surface of the transparent material to form a primer, and the primer had a good adhesion on the surface of the transparent material. As can be seen from example 3 and comparative example 14, the coating layer material was simply coated on the surface of the coating layer formed by the coating process, and the adhesion effect of the coating layer material and the coating layer material was poor, so that the adhesion of the coating layer material on the coating layer was poor. In order to improve the bonding effect between the outer layer material and the coating layer material, a protective layer is formed between the outer layer material and the coating layer material through the protective layer material, interlayer adhesion is provided between the outer layer material and the coating layer material, and the reason for analysis is probably that phosphate radical in phosphate acrylate can be adsorbed with zirconium dioxide in the coating layer material and is matched with other components in the protective layer material to form the protective layer which is beneficial to the adhesion of the outer layer material through the photo-curing effect. In addition, the phosphate acrylate is added into the protective layer materials of the embodiment 3 and the comparative examples 15 to 18, so that the adhesive force can be improved under the condition that the photo-curing anti-fog and anti-reflection coating keeps certain light transmittance.
The above-described embodiments are merely illustrative of the present application and are not intended to be limiting, and those skilled in the art, having read the present specification, may make modifications without inventive contribution to the application as desired, but are intended to be within the scope of the application.
Claims (5)
1. The photocuring anti-fog anti-reflection coating comprises a bottom layer material, a coating layer material, a protective layer material and a photocuring anti-fog wear-resistant layer material, wherein the bottom layer material comprises the following components in parts by weight: 20-40 parts of bottom layer photo-curing resin I, 15-30 parts of bottom layer photo-curing resin II, 3-5 parts of bottom layer photo-initiator I, 1-3 parts of bottom layer photo-initiator II, 10-20 parts of ACMO monomer, 2-5 parts of silane coupling agent, 15-20 parts of IBOMA monomer, 8-15 parts of photo-curing resin III and 10-15 parts of PM solvent;
the coating layer material comprises silicon dioxide and zirconium dioxide, wherein the weight ratio of the silicon dioxide to the zirconium dioxide is 1: (1-4);
the protective layer material comprises the following components in parts by weight: 20-40 parts of protective layer photo-curing resin I, 10-20 parts of HEMA monomer, 25-40 parts of protective layer photo-curing resin II, 3-5 parts of phosphate acrylate, 2-4 parts of protective layer photoinitiator I, 1-3 parts of protective layer photoinitiator II, 0.5-1 part of protective layer photoinitiator III, 10-20 parts of UV monomer and 10-20 parts of triisobutyl ketone solvent;
the photocuring anti-fog wear-resistant layer material comprises the following components in parts by weight: 30-50 parts of super-hydrophilic photo-curing resin, 20-30 parts of wear-resistant resin, 3-5 parts of super-hydrophilic auxiliary agent I, 3-5 parts of super-hydrophilic auxiliary agent II, 8-15 parts of nano alumina, 3-5 parts of photoinitiator I, 2-4 parts of photoinitiator II and 10-20 parts of PM solvent;
the grain diameter of the nano alumina is less than 5 mu m;
the refractive indexes of the super-hydrophilic auxiliary agent I and the super-hydrophilic auxiliary agent II are 1.4-1.5.
2. The light-curable anti-fog, anti-reflection coating according to claim 1, wherein: the functionality of the wear-resistant resin is more than or equal to 6.
3. The light-curable anti-fog, anti-reflection coating according to claim 1, wherein: the bottom layer photoinitiator I is 819 photoinitiator, and the bottom layer photoinitiator II is TPO photoinitiator.
4. The light-curable anti-fog, anti-reflection coating according to claim 1, wherein: the protective layer photoinitiator I is 819 photoinitiator, the protective layer photoinitiator II is TPO photoinitiator, and the protective layer photoinitiator III is 784 photoinitiator.
5. A method for preparing the photo-curing anti-fog anti-reflection coating as claimed in claim 1, which is characterized in that: the method comprises the following steps: preparing a bottom layer material: stirring the weighed components of the primer for 1-2 hours at the rotating speed of 1000-1200 r/min at room temperature to prepare the primer by uniformly mixing;
and (3) preparing a coating layer material: uniformly mixing the components of the coating layer to prepare target raw materials required by preparing the coating layer by magnetron sputtering;
preparing a protective layer material: stirring the weighed components of the protective layer material for 1-2 hours at the rotating speed of 1000-1200 r/min at room temperature to prepare the protective layer coating by uniformly mixing;
preparing a photo-curing anti-fog wear-resistant layer material: and stirring the weighed components of the photo-curing anti-fog wear-resistant layer material for 30-60 min at the rotating speed of 1000-1200 r/min at room temperature to uniformly mix the components to obtain the photo-curing anti-fog wear-resistant layer material.
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