CN115851107A - Paint film with special effect - Google Patents
Paint film with special effect Download PDFInfo
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- CN115851107A CN115851107A CN202211558447.1A CN202211558447A CN115851107A CN 115851107 A CN115851107 A CN 115851107A CN 202211558447 A CN202211558447 A CN 202211558447A CN 115851107 A CN115851107 A CN 115851107A
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- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 12
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- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 description 4
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- OUPZKGBUJRBPGC-UHFFFAOYSA-N 1,3,5-tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 OUPZKGBUJRBPGC-UHFFFAOYSA-N 0.000 description 3
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Abstract
The invention relates to the field of coatings, and particularly discloses a paint film with a special effect. A paint film with special effect is formed by ultraviolet curing of photo-curing paint; the photocuring paint comprises the following components in parts by mass: 40-50 parts of polyurethane acrylate resin; 3-8 parts of a photoinitiator; 0.1-1 part of a leveling agent; 50-60 parts of a diluent; the diluent is the compound of N-vinyl pyrrolidone, dichloropropane and ethylene glycol tert-butyl ether. The invention has the advantage that the paint film has the appearance effect of a special ice flower surface.
Description
Technical Field
The invention relates to the field of coatings, in particular to a paint film with a specific special effect.
Background
The UV curing coating has the advantages of environmental protection, economy, high efficiency, energy conservation, wide adaptability and the like, and along with the enhancement of energy conservation and environmental protection consciousness of people in recent years, the variety and the performance of the photocureable coating are continuously enhanced, the application field is continuously expanded, the yield is rapidly increased, and the rapid development trend is presented. At present, the photocureable coating is not only applied to a large number of base materials such as paper, plastics, leather, metal, glass, ceramics and the like, but also successfully applied to materials such as optical fibers, printed circuit boards, electronic component packaging and the like.
However, the existing UV curable coating generally forms a paint film with a flat and smooth appearance after curing, the appearance is monotonous, and with the pursuit of people for product beauty, the paint film with a flat and smooth appearance has been difficult to meet the design requirements of products, so there is room for improvement.
Disclosure of Invention
In order to impart the appearance effect of a particular ice-flower surface to the paint film, the present application provides a paint film having a particular effect.
In a first aspect, the present application provides a paint film with special effects, which adopts the following technical scheme:
a paint film with special effect is formed by ultraviolet curing of photo-curing paint;
the photo-curing paint comprises the following components in parts by mass:
40-50 parts of polyurethane acrylate resin;
3-8 parts of a photoinitiator;
0.1-1 part of a leveling agent;
50-60 parts of a diluent;
the diluent is a compound of N-vinyl pyrrolidone, dichloropropane and ethylene glycol tert-butyl ether.
By adopting the technical scheme, the N-vinyl pyrrolidone, the dichloropropane and the ethylene glycol tert-butyl ether are used as the diluents, so that the photo-curing paint has extremely high light sensitivity under the action of the special diluents, the photo-curing speed is high during exposure under UV light, the surface drying is better, the drying speed of the photo-curing paint on the surface and the drying speed of the photo-curing paint at the bottom are different, the curing can be completed only by carrying out exposure at a lower temperature during curing, and the paint film can form an ice flower appearance based on the curing speed difference, so that the effect of the surface of the ice flower paint film is realized, the effect of the monotonous smooth and flat appearance is not achieved, the requirement of product production on the appearance is better met, the applicability is wider, and the technical blank is filled.
Preferably, the photo-curing paint comprises the following components in parts by mass:
44-46 parts of polyurethane acrylate resin;
4-6 parts of a photoinitiator;
0.4-0.6 part of a leveling agent;
54-56 parts of diluent.
By adopting the technical scheme, the ice flower prepared by specifically selecting the proportion of each component has better appearance effect, more obvious ice flower effect and better paint film quality.
Preferably, the proportion of the N-vinyl pyrrolidone, the dichloropropane and the ethylene glycol tertiary butyl ether is 6:3:1.
by adopting the technical scheme, the curing speed is higher, the appearance effect of the formed ice flowers is more obvious, and the quality of a paint film is better by specifically selecting the proportion of the N-vinyl pyrrolidone, the dichloropropane and the ethylene glycol tertiary butyl ether.
Preferably, the photoinitiator is a compound of benzophenone, tetraethyl mikroorganismen and isoamyl p-dimethylaminobenzoate.
By adopting the technical scheme, the photoinitiator is formed by compounding benzophenone, tetraethyl ketone and isoamyl p-dimethylaminobenzoate, so that the photocuring speed is higher, the ice flower appearance effect is more obvious, the adhesion force of a paint film and a base material can be effectively improved, the paint film is not easy to crack and drop, and the quality of the paint film is better.
Preferably, the proportion of the benzophenone, the tetraethyl mikroorganone and the isoamyl p-dimethylaminobenzoate is 7:2:1.
by adopting the technical scheme, the proportion of the benzophenone, the tetraethyl mikrolone and the isoamyl p-dimethylaminobenzoate is specifically selected, so that the adhesion between a paint film and a base material is higher, and the phenomena of cracking and paint falling are less prone to occur.
Preferably, the urethane acrylate resin is a trifunctional urethane acrylate resin.
By adopting the technical scheme, the matching effect of the functionality of the polyurethane acrylate resin, the special diluent and the photoinitiator is better, the curing speed of the paint film is higher, the formed ice-patterned paint film has more obvious effect, and the quality of the paint film is better.
Preferably, the preparation method of the paint film comprises the following steps:
step 1), preparing photocuring paint;
step 2), spraying the photo-curing paint on the base material;
and 3) exposing the base material sprayed with the photocuring paint for 7-8s under UV light.
By adopting the technical scheme, the paint film prepared by the special formula has poor curing speed through exposure for 7-8s, rapid curing and one-time exposure, so that a more obvious ice flower surface effect is formed.
Preferably, in the step 2), the spraying amount of the photo-curing paint is 100-110g/m 2 (ii) a In the step 3), a UV mercury lamp is used for exposure, and the light energy of the UV mercury lamp is 800-1200mJ/cm 2 。
By adopting the technical scheme, the specific spraying amount is matched with the light energy of the UV mercury lamp, the exposure effect is proper, the curing can be completed by one-time exposure, the speed difference between the surface and the bottom of the paint film can be formed just, the obvious ice flower appearance is formed, if the exposure time is too long, the speed difference is less, the formed ice flower effect is reduced, if the exposure time is broken, the complete curing is easily caused, and the adhesive force between the paint film and the base material is influenced.
In summary, the present application has the following beneficial effects:
1. according to the method, N-vinyl pyrrolidone, dichloropropane and ethylene glycol tert-butyl ether are used as diluents, so that the photo-curing paint has extremely high light sensitivity under the action of a special diluent, the photo-curing speed is high during exposure under UV light, the surface drying is better, the drying speed forming speed difference between the photo-curing paint on the surface and the photo-curing paint at the bottom is ensured, the curing can be completed only by carrying out one-time exposure at a lower temperature during curing, and the paint film can form an ice flower appearance based on the curing speed difference, so that the effect of the surface of the ice flower paint film is realized, the monotonous smooth and flat appearance effect is avoided, the requirement of product production on the appearance is better met, the applicability is wider, and the technical blank is filled.
2. According to the application, the photoinitiator is formed by compounding the benzophenone, the tetraethyl mikroorganone and the isoamyl p-dimethylaminobenzoate, so that the photocuring speed is higher, the ice flower appearance effect is more obvious, the adhesive force between a paint film and a base material can be effectively improved, the paint film is not easy to crack and drop, and the quality of the paint film is better.
3. This application is through the cooperation of specific spraying volume and the light energy of UV mercury lamp, and the exposure effect is just right, can realize once exposing and accomplish the solidification to can form the speed difference of paint film surface and bottom solidification just, form apparent ice flower outward appearance, and if the exposure time overlength, speed difference can be few, and the ice flower effect of formation will descend, if the exposure time is broken, leads to easily failing to solidify completely, influences the adhesive force of paint film and substrate.
Drawings
FIG. 1 is a graph of the effect of the paint film having a special effect obtained in example 3 after the test of example 1;
FIG. 2 is a graph showing the effects of the paint film obtained in comparative example 1 after the test in example 1;
FIG. 3 is a graph showing the effect of the paint film having a special effect obtained in comparative example 7 after the test of example 1.
Detailed Description
The present application will be described in further detail with reference to examples.
Example 1
A paint film with special effect is prepared from photo-solidified paint through ultraviolet solidifying.
The photo-curing paint consists of the following components:
urethane acrylate resin, a photoinitiator, a leveling agent and a diluent.
The polyurethane acrylate resin is purchased from Corsikon and has the trade name of AgiSyn 248,3 functionality polyurethane acrylate resin.
Wherein the photoinitiator is the compound of benzophenone, tetraethyl mikrolone and isoamyl p-dimethylaminobenzoate.
Benzophenone is commercially available from CAS No.: 119-61-9.
Tetraethyl michler's ketone is commercially available, CAS number: 90-93-7.
Isoamyl p-dimethylaminobenzoate is commercially available under CAS No.: 21245-01-2.
Wherein the leveling agent is purchased from Santuo chemical industry Co., ltd, the name STA-3358 and an acrylate leveling agent.
Wherein, the diluent is the compound of N-vinyl pyrrolidone, dichloropropane and ethylene glycol tert-butyl ether.
N-vinyl pyrrolidone is commercially available under CAS No.: 88-12-0.
Dichloropropane is commercially available, CAS No.: 78-87-5.
Ethylene glycol tertiary butyl ether is commercially available from CAS No.: 7580-85-0.
The preparation method of the paint film with special effect comprises the following steps:
step 1), preparing a photocuring paint, which comprises the following specific steps:
and step 01), putting 40kg of polyurethane acrylate resin and 50kg of diluent into a stirring kettle, and stirring for 5min at the rotating speed of 120 r/min.
And step 02), adding 3kg of photoinitiator and 0.1kg of flatting agent, stirring at the rotating speed of 120r/min for 3min to obtain the photocuring paint.
Step 2), spraying the photo-curing paint on a base material, wherein the base material is a PVC plate in the embodiment, and the spraying amount of the photo-curing paint is 100g/m 2 。
Step 3), exposing the base material sprayed with the photocuring paint for 7s under a UV mercury lamp, obtaining a paint film with special effect, wherein the light energy of the UV mercury lamp is 800mJ/cm 2 。
Example 2
A paint film having a special effect, which differs from example 1 only in that:
the preparation method of the paint film with special effect comprises the following steps:
step 1), preparing a photocuring paint, which comprises the following specific steps:
step 01), putting 44kg of urethane acrylate resin and 54kg of diluent into a stirring kettle, and stirring for 5min at the rotating speed of 120 r/min.
And step 02), adding 4kg of photoinitiator and 0.4kg of flatting agent, stirring at the rotating speed of 120r/min for 3min to obtain the photocuring paint.
Step 2), spraying the photo-curing paint on a base material, wherein the base material is a PVC plate in the embodiment, and the spraying amount of the photo-curing paint is 100g/m 2 。
Step 3), spraying lightExposing the base material of the cured paint for 7s under a UV mercury lamp to obtain a paint film with special effect, wherein the light energy of the UV mercury lamp is 800mJ/cm 2 。
Example 3
A paint film having a special effect, which differs from example 1 only in that:
the preparation method of the paint film with special effect comprises the following steps:
step 1), preparing a photocuring paint, which comprises the following specific steps:
and step 01), putting 45kg of polyurethane acrylate resin and 55kg of diluent into a stirring kettle, and stirring for 5min at the rotating speed of 120 r/min.
And step 02), adding 5kg of photoinitiator and 0.5kg of flatting agent, stirring at the rotating speed of 120r/min for 3min to obtain the photocuring paint.
Step 2), spraying the photo-curing paint on a base material, wherein the base material is a PVC plate in the embodiment, and the spraying amount of the photo-curing paint is 105g/m 2 。
Step 3), exposing the substrate sprayed with the photocuring paint for 7s under a UV mercury lamp to obtain a paint film with a special effect, wherein the light energy of the UV mercury lamp is 1000mJ/cm 2 。
Example 4
A paint film having a special effect, which differs from example 1 only in that:
the preparation method of the paint film with special effect comprises the following steps:
step 1), preparing a photocuring paint, which comprises the following specific steps:
step 01), putting 46kg of polyurethane acrylate resin and 56kg of diluent into a stirring kettle, and stirring for 5min at the rotating speed of 120 r/min.
And step 02), adding 6kg of photoinitiator and 0.6kg of flatting agent, stirring at the rotating speed of 120r/min for 3min to obtain the photocuring paint.
Step 2), spraying the photo-curing paint on a base material, wherein the base material is a PVC plate in the embodiment, and the spraying amount of the photo-curing paint is 110g/m 2 。
Step 3), exposing the substrate sprayed with the photocuring paint for 8s under a UV mercury lamp to obtain a paint film with a special effect, wherein the UV mercury lamp is used forThe light energy is 1200mJ/cm 2 。
Example 5
A paint film having a special effect, which differs from example 1 only in that:
the preparation method of the paint film with special effect comprises the following steps:
step 1), preparing a photocuring paint, which comprises the following specific steps:
step 01), 50kg of polyurethane acrylate resin and 60kg of diluent are put into a stirring kettle, the rotating speed is 120r/min, and the stirring is carried out for 5min.
And step 02), adding 8kg of photoinitiator and 1kg of flatting agent, stirring at the rotating speed of 120r/min for 3min to obtain the photocuring paint.
Step 2), spraying the photo-curing paint on a base material, wherein the base material is a PVC plate in the embodiment, and the spraying amount of the photo-curing paint is 110g/m 2 。
Step 3), exposing the substrate sprayed with the photocuring paint for 8s under a UV mercury lamp to obtain a paint film with a special effect, wherein the light energy of the UV mercury lamp is 1200mJ/cm 2 。
Comparative example 1
A paint film differing from example 3 only in that:
equal amounts of tripropylene glycol diacrylate are used instead of N-vinylpyrrolidone.
The preparation method of the paint film with special effect comprises the following steps:
and 3) exposing the substrate sprayed with the photocuring paint for 10s under a UV mercury lamp, standing for 3min, and then exposing for 10s under the UV mercury lamp again to obtain a paint film with a special effect, wherein the light energy of the UV mercury lamp is 1500mJ/cm 2 。
Wherein tripropylene glycol diacrylate is commercially available under the CAS number: 42978-66-5.
Comparative example 2
A paint film, differing from example 3 only in that:
triethylene glycol dimethacrylate was used in place of dichloropropane in equal amounts.
The preparation method of the paint film with special effect comprises the following steps:
step 3), exposing the base material sprayed with the photocuring paint for 10s under a UV mercury lamp, standing for 3min, and then exposing the base material again for 10s under the UV mercury lamp to obtain a paint film with a special effect, wherein the light energy of the UV mercury lamp is 1500mJ/cm 2 。
Among them, triethylene glycol dimethacrylate is commercially available under CAS No.: 109-16-0.
Comparative example 3
A paint film, differing from example 3 only in that:
ethylene glycol diacetate was used in place of ethylene glycol tertiary butyl ether in equal amounts.
The preparation method of the paint film with special effect comprises the following steps:
and 3) exposing the substrate sprayed with the photocuring paint for 10s under a UV mercury lamp, standing for 3min, and then exposing for 10s under the UV mercury lamp again to obtain a paint film with a special effect, wherein the light energy of the UV mercury lamp is 1500mJ/cm 2 。
Wherein, the glycol diacetate is from the market, CAS number: 111-55-7.
Comparative example 4
A paint film, differing from example 3 only in that:
equal amounts of tripropylene glycol diacrylate are used instead of N-vinylpyrrolidone.
Wherein tripropylene glycol diacrylate is commercially available under the CAS number: 42978-66-5.
Comparative example 5
A paint film, differing from example 3 only in that:
triethylene glycol dimethacrylate was used in place of dichloropropane in equal amounts.
Wherein, the triethylene glycol dimethacrylate is from the market, CAS number: 109-16-0.
Comparative example 6
A paint film, differing from example 3 only in that:
ethylene glycol diacetate was used in place of ethylene glycol tertiary butyl ether in equal amounts.
Wherein, the glycol diacetate is from the market, CAS number: 111-55-7.
Comparative example 7
A paint film having a special effect, which differs from example 3 only in that:
the same amount of triglycidyl isocyanurate is used to replace benzophenone.
Among them, triglycidyl isocyanurate comes from the market, CAS No.: 2451-62-9.
Comparative example 8
A paint film having a special effect, which differs from example 3 only in that:
equal amount of N, N-dimethyl-p-toluidine was used instead of tetraethyl ketone.
Wherein N, N-dimethyl-p-toluidine is commercially available under CAS No.: 99-97-8.
Comparative example 9
A paint film having a special effect, which differs from example 3 only in that:
equal amounts of 9,10-dibutoxyanthracene were used instead of isoamyl p-dimethylaminobenzoate.
Of these, 9,10-dibutoxyanthracene is commercially available under CAS No.: 76275-14-4.
Experiment 1
The paint films with special effects prepared in the examples and the comparative examples are placed in water at 80 ℃ together with a base material to be soaked for 1 hour, a plurality of scratches are scratched on the surface of the paint film by a knife before soaking, the scratches are 10 scratches in a grid shape, the scratches are arranged transversely and vertically, and the interval between every two adjacent scratches is 2mm.
And observing the peeling degree of the paint film after soaking from the base material at the scratch.
Experiment 2
The degree of ice-flower formation in the appearance of the paint films having special effects obtained in each of the examples and comparative examples was observed.
The results of tests 1 and 2 are shown in Table 1.
TABLE 1
According to the comparison of the data of the example 3 and the comparative examples 1-3 in the table 1, when the N-vinyl pyrrolidone, the dichloropropane and the ethylene glycol tert-butyl ether are compounded to be used as a diluent, the light sensitivity of the photo-curing paint can be effectively improved, so that the curing speed difference between the surface layer and the bottom layer is generated in the curing process, and the special obvious ice flower appearance is formed. The specific effect is shown in comparison with fig. 1 and fig. 2.
According to the comparison of the data of the example 3 and the comparative examples 4-6 in the table 1, when the compound of N-vinyl pyrrolidone, dichloropropane and ethylene glycol tertiary butyl ether is not used as a diluent, the light sensitivity of the photo-curing paint is crossed, complete photo-curing cannot be carried out by one-time exposure, so that the adhesion between the paint film and the base material is seriously reduced, and the phenomenon that the paint film outside the scratch is peeled off in a large area is caused.
According to the comparison of the data of the embodiment 3 and the comparative examples 7-9 in the table 1, when the benzophenone, the tetraethyl mikrolon and the isoamyl p-dimethylaminobenzoate are compounded to be used as the photoinitiator, the photosensitivity is further improved, so that the curing speed difference is more obvious, the ice flower effect is more obvious, the adhesive force of the paint film and a base material can be improved, and the paint film is not easy to crack, peel and the like. The specific effect is shown in comparison between fig. 1 and fig. 3 (the peeling is obvious at the lower right corner of fig. 3).
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. A paint film having special effects, characterized in that: is formed by ultraviolet curing of photo-curing paint;
the photo-curing paint comprises the following components in parts by mass:
40-50 parts of polyurethane acrylate resin;
3-8 parts of a photoinitiator;
0.1-1 part of a leveling agent;
50-60 parts of a diluent;
the diluent is a compound of N-vinyl pyrrolidone, dichloropropane and ethylene glycol tert-butyl ether.
2. A paint film with special effects according to claim 2, characterized in that: the photo-curing paint comprises the following components in parts by mass:
44-46 parts of polyurethane acrylate resin;
4-6 parts of a photoinitiator;
0.4-0.6 part of a leveling agent;
54-56 parts of diluent.
3. A paint film with special effects according to claim 2, characterized in that: the proportion of the N-vinyl pyrrolidone, the dichloropropane and the ethylene glycol tertiary butyl ether is 6:3:1.
4. a paint film having special effects according to claim 1, characterized in that: the photoinitiator is a compound of benzophenone, tetraethyl mikrolon and isoamyl p-dimethylaminobenzoate.
5. A paint film with special effects according to claim 4, characterized in that: the proportion of the benzophenone, the tetraethyl mikroorganone and the isoamyl p-dimethylaminobenzoate is 7:2:1.
6. a paint film having special effects according to claim 1, characterized in that: the polyurethane acrylate resin is trifunctional polyurethane acrylate resin.
7. A paint film with special effects according to any one of claims 1 to 6, characterised in that: the preparation method of the paint film comprises the following steps:
step 1), preparing photocuring paint;
step 2), spraying the photo-curing paint on the base material;
and 3) exposing the base material sprayed with the photocuring paint for 7-8s under UV light.
8. A paint film with special effects as claimed in claim 7, characterized in that: in the step 2), the spraying amount of the photo-curing paint is 100-110g/m 2 (ii) a In the step 3), a UV mercury lamp is used for exposure, and the light energy of the UV mercury lamp is 800-1200mJ/cm 2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211558447.1A CN115851107A (en) | 2022-12-06 | 2022-12-06 | Paint film with special effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211558447.1A CN115851107A (en) | 2022-12-06 | 2022-12-06 | Paint film with special effect |
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| Publication Number | Publication Date |
|---|---|
| CN115851107A true CN115851107A (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202211558447.1A Pending CN115851107A (en) | 2022-12-06 | 2022-12-06 | Paint film with special effect |
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| Country | Link |
|---|---|
| CN (1) | CN115851107A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461888A (en) * | 2014-07-22 | 2016-04-06 | 日本化药株式会社 | Carbamate (methyl) acrylate compound and ultraviolet-curable resin composition containing carbamate (methyl) acrylate compound |
| CN109705683A (en) * | 2018-11-23 | 2019-05-03 | 浙江佑谦特种材料有限公司 | A kind of UV coating and construction technology with ice silk painting effect |
| CN110240860A (en) * | 2019-07-12 | 2019-09-17 | 江苏宏泰高分子材料有限公司 | A kind of UV light coating of high abrasion high tenacity and its application |
-
2022
- 2022-12-06 CN CN202211558447.1A patent/CN115851107A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461888A (en) * | 2014-07-22 | 2016-04-06 | 日本化药株式会社 | Carbamate (methyl) acrylate compound and ultraviolet-curable resin composition containing carbamate (methyl) acrylate compound |
| CN109705683A (en) * | 2018-11-23 | 2019-05-03 | 浙江佑谦特种材料有限公司 | A kind of UV coating and construction technology with ice silk painting effect |
| CN110240860A (en) * | 2019-07-12 | 2019-09-17 | 江苏宏泰高分子材料有限公司 | A kind of UV light coating of high abrasion high tenacity and its application |
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