CN109280478A - A kind of application method of UV coating for automobile interiors - Google Patents
A kind of application method of UV coating for automobile interiors Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 106
- 239000011248 coating agent Substances 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000003973 paint Substances 0.000 claims abstract description 53
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- 238000002360 preparation method Methods 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 238000007711 solidification Methods 0.000 claims abstract description 14
- 230000008023 solidification Effects 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims description 87
- 229920002635 polyurethane Polymers 0.000 claims description 86
- 239000004925 Acrylic resin Substances 0.000 claims description 76
- 229920000178 Acrylic resin Polymers 0.000 claims description 72
- 125000001931 aliphatic group Chemical group 0.000 claims description 69
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 50
- 239000003999 initiator Substances 0.000 claims description 47
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 30
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 29
- 238000003756 stirring Methods 0.000 claims description 25
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 23
- 238000001723 curing Methods 0.000 claims description 19
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- 239000006229 carbon black Substances 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 9
- 238000013019 agitation Methods 0.000 claims description 9
- 239000000178 monomer Substances 0.000 claims description 8
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 7
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 238000003848 UV Light-Curing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000005507 spraying Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 239000002904 solvent Substances 0.000 abstract description 8
- 239000007921 spray Substances 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 229920006491 ABS+PC Polymers 0.000 abstract description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000000047 product Substances 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 8
- 230000009977 dual effect Effects 0.000 description 7
- 238000004132 cross linking Methods 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 241000675108 Citrus tangerina Species 0.000 description 4
- 230000003666 anti-fingerprint Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000010422 painting Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 206010027627 Miliaria Diseases 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 201000004169 miliaria rubra Diseases 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of application methods of UV coating for automobile interiors, belong to coating preparation field.The present invention the following steps are included: S1, by UV coating, UV coating curing agent, UV paint thinner by weight 5: 1: (2-3) uniform mixing preparation, it is sprayed on ground or prime coat, room temperature levelling dries 5-10min, then keeps 5-15min in 60 DEG C of -80 DEG C of environment；Specifically in the present embodiment UV coating, UV coating curing agent, UV paint thinner weight ratio be 5: 1: 2, the dry 5min of room temperature levelling keeps 10min in 60 DEG C of environment；S2, UV solidification is carried out, UV exposure energy is 1200-1800MJ/cm2, specifically UV exposure energy is 1200MJ/cm in the present embodiment2.The present invention overcome in the prior art automotive upholstery need to spray twice, the lower deficiency of production efficiency, it has good adhesive force for ABS, PC, ABS+PC and the plastic rubber substrate painted, paint film is formed by with performances such as solvent resistant, water resistances, current secondary spraying effect, energy saving raising production efficiency can be improved.
Description
Technical field
The present invention relates to technical field of paint preparation, more specifically to a kind of use of UV coating for automobile interiors
Method.
Background technique
Nowadays with the enhancing of people's environmental consciousness and the development of polymer science, it is desirable that use the cry of environmental protection coating material
Higher and higher, domestic each enterprise is to find competitive advantage all in the index for gradually tightening coating VOC content, development and application ring
Guarantor's type coating.UV paint belongs to environment-friendly type coating, has the advantages that curing rate is fast, work efficiency is high, so automobile interior decoration UV
The research and development of gloss oil series paint are to comply with market trend, and automobile interior decoration UV gloss oil series paint has in the application of automotive upholstery
Extremely wide prospect.Higher and higher, 2 sprays of black primer+UV paint before improving especially are required in high-end automotive upholstery
It applies, thus energy saving raising production efficiency.
Through retrieving, the research about UV coating has patent disclosure, such as Chinese Patent Application No.: 2017108902661, Shen
It please day: on September 27th, 2017, invention and created name are as follows: a kind of automotive upholstery anti-fingerprint UV coating, preparation method and its answer
With this application discloses a kind of automotive upholstery anti-fingerprint UV coating, preparation method and applications, raw materials are as follows: 9 official's aliphatic
25-30 parts of polyurethane acrylic resin；4 15-20 parts of official's aliphatic polyurethane acrylic resins；Anti-fingerprint acrylic resin 15-
20 parts；184 2-3 parts of ultraviolet initiator；1-2 parts of ultraviolet initiator TPO；0.3-0.5 parts of levelling agent；Anti-fingerprint levelling agent
0.3-0.5 parts；10-30 parts of ethyl acetate；10-15 parts of butyl acetate.Compared with prior art, automobile interior decoration provided by the invention
Excellent with UV coating property, coating can be up to crosslinking be fully cured, and solvent noresidue is not after-tacked, moreover, good dispersion when spraying,
Levelability is moderate, and thixotropy is moderate, coating uniform, without obvious tangerine peel, without pinprick bubble, free from admixture point exists.
For another example Chinese Patent Application No.: 2017103207661, the applying date: on May 9th, 2017, invention and created name are as follows:
A kind of UV coating for automobile interiors and its preparation method and application, this application includes the raw material of following parts by weight: polyurethane third
15-20 parts of olefin(e) acid resin；20-30 parts of epoxy resin；15-20 parts of trimethylolpropane tris acrylic vinegar；Ultraviolet initiator 3-5
Part；0.3-0.8 parts of levelling agent；10-25 parts of acetic acid second vinegar；10-25 parts of butyl acetate.UV for automobile interiors provided by the invention is applied
Expect function admirable, coating can be up to crosslinking be fully cured, and solvent noresidue is not after-tacked, moreover, good dispersion when spraying, levelability
Moderate, thixotropy is moderate, coating uniform, without obvious tangerine peel, without pinprick bubble, free from admixture point exists.In conclusion the above application
Case all refers to the development and application of UV coating, but is not related to the improvement to existing coating two-double spray coating problem, and properties of product are still
It is worth further improving.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome in the prior art automotive upholstery need to spray twice, production efficiency it is lower not
Foot, provides a kind of application method of UV coating for automobile interiors, for ABS, PC, ABS+PC and the plastic rubber substrate painted
With good adhesive force, paint film is formed by with performances such as solvent resistant, water resistances, can improve current secondary spraying effect
Fruit, energy saving raising production efficiency.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of application method of UV coating for automobile interiors of the invention, comprising the following steps:
S1, by UV coating, UV curing agent and UV paint thinner by weight 5: 1: (2-3) is uniformly deployed, and is sprayed at element
On material layer, then the dry 5-10min of room temperature levelling keeps 5-15min in 60 DEG C of -80 DEG C of environment；
S2, UV solidification is carried out, UV exposure energy is 1200-1800MJ/cm2。
Further, above-mentioned UV coating includes the raw material of following parts by weight:
Further, above-mentioned UV paint thinner includes the raw material of following parts by weight: 40-60 parts of ethyl acetate；Acetic acid
40-60 parts of butyl ester；Preparation method are as follows: the butyl acetate of parts by weight 40-60 is mixed with the ethyl acetate of parts by weight 40-60 and is stirred
Mix it is 10-20 minutes uniform after.
Further, above-mentioned UV coating curing agent includes the raw material of following parts by weight: Desmodur N3390 72-78
Part；22-28 parts of butyl acetate；Preparation method are as follows: create the Cohan of the butyl acetate of parts by weight 22-28 and parts by weight 72-78
Desmodur N3390 be mixed evenly 10-20 minutes after.
Further, six official's aliphatic polyurethane acrylic resins are polyurethane acroleic acid oligomer；Three official's aliphatic
Polyurethane acrylic resin and four official's aliphatic polyurethane acrylic resins are aliphatic urethane acrylate oligomer；Four
Official's hydroxyl polyurethane acrylic resin is the polyurethane acroleic acid oligomer containing hydroxyl；TMPTA monomer is that three official's acrylic acid are low
Polymers.
Further, four official's aliphatic polyurethane acrylic resins include following raw material:
Four 8-15 parts of acrylic resin A of official's aliphatic polyurethanes；
Four 8-15 parts of acrylic resin B of official's aliphatic polyurethanes.
Further, ultraviolet initiator includes the raw material of following mass parts:
184 1-3 parts of ultraviolet initiator；
1-3 parts of ultraviolet initiator TPO；
907 1-3 parts of ultraviolet initiator.
Further, black slurry is the mill base of high-carbon black pigment grinding, and wherein the content of carbon black is not higher than 10%.
Further, it prepares in accordance with the following methods:
Step 1: under the conditions of being protected from light, by formula rate by four official's hydroxyl polyurethane acrylic resins, four official's aliphatic polies
Urethane acrylate resin, three official's aliphatic polyurethane acrylic resins, six official's aliphatic polyurethane acrylic resins and TMPTA are mono-
Body uniformly mixes under agitation, obtains mixture A；
Step 2: the butyl acetate of 5-10 parts by weight is stirred, the ultraviolet light that 3-9 parts by weight are added under agitation draws
Agent and uniform stirring are sent out, mixture B is obtained；
Step 3: mixture B is added under agitation in mixing mixture A, 0.5-1 parts by weight levelling is added
Agent stirs 10-20min, obtains mixture C；
Step 4: 3-5 parts by weight black slurry is added under agitation in mixture C, and uniform stirring 10-20min；
Obtain mixture D；
Step 5: the ethyl acetate and 5-10 parts by weight of 5-20 parts by weight is added into mixture D under agitation
Butyl acetate, uniform stirring simultaneously adjust viscosity to 20-30S (25 DEG C, NK-2), filter to obtain the final product.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) application method of a kind of UV coating for automobile interiors of the invention improves current conventional black priming paint+UV paint
Spraying method twice, thus energy saving raising production efficiency, and the paint film that paint coatings of the invention are formed may be implemented
All solidstate crosslinking, solvent noresidue are not after-tacked, and good dispersion when spraying, and levelability is moderate, and thixotropy is moderate, keeps coating equal
Even, no obvious tangerine peel exists without pinprick bubble, free from admixture point, and lacquer painting levelling is plentiful, and glossiness is good, meets production requirement standard.
(2) a kind of application method of UV coating for automobile interiors of the invention, the crosslink density after solidification are much higher than heat
Baking type coating, coating the organic solvents various aspects such as hardness, wear-resisting, acid and alkali-resistance, salt spray resistance, resistance to gasoline performance indicator very
Height, especially its paint film be plentiful, gloss, surface smoothness, UV paint curing rate are fast, high production efficiency.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the application method of UV coating for automobile interiors of the invention；
Fig. 2 is the flow diagram of the preparation method of UV coating for automobile interiors in the present invention.
Specific embodiment
To further appreciate that the contents of the present invention, in conjunction with attached drawing, the present invention is described in detail.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
The present invention will be further described with reference to the examples below.
Embodiment 1
As depicted in figs. 1 and 2, the application method of a kind of UV coating for automobile interiors of the present embodiment, comprising the following steps:
S1, by UV coating, UV coating curing agent, UV paint thinner by weight 5: 1: (2-3) uniform mixing preparation, spray
It is applied on ground or prime coat, then the dry 5-10min of room temperature levelling keeps 5-15min in 60 DEG C of -80 DEG C of environment；Specifically
In the present embodiment UV coating, UV coating curing agent, UV paint thinner weight ratio be 5: 1: 2, the dry 5min of room temperature levelling,
10min is kept in 60 DEG C of environment
S2, UV solidification is carried out, UV exposure energy is 1200-1800MJ/cm2, specific UV exposure energy in the present embodiment
For 1200MJ/cm2。
Wherein the UV paint thinner in the present embodiment includes the raw material of following parts by weight: 40-60 parts of ethyl acetate；Acetic acid
40-60 parts of butyl ester；Preparation method are as follows: the butyl acetate of parts by weight 40-60 is mixed with the ethyl acetate of parts by weight 40-60 and is stirred
Mix it is 10-20 minutes uniform after；Specifically UV paint thinner includes 40 parts of ethyl acetate and butyl acetate in the present embodiment
40 parts, when preparation, is mixed evenly 10 minutes.
UV coating curing agent in the present embodiment includes the raw material of following parts by weight: polymer (China) limited public affairs are created in Cohan
72-78 parts of the Desmodur N3390 of department；22-28 parts of butyl acetate；Preparation method are as follows: by the acetic acid fourth of parts by weight 22-28
10-20 is mixed evenly in the Desmodur N3390 of Cohan wound polymer (China) Co., Ltd of ester and parts by weight 72-78
After minute；Specifically UV coating curing agent includes DesmodurN339072 parts in the present embodiment；22 parts of butyl acetate, system
It is mixed evenly 10 minutes when standby.
UV coating in the present embodiment is that black is coloured, dual cure UV coating comprising the raw material of following parts by weight:
Four 20 parts of official's hydroxyl polyurethane acrylic resins；
Four 18 parts of official's aliphatic polyurethane acrylic resins；
Wherein the four officials aliphatic polyurethane acrylic resin includes: four official's aliphatic polyurethane acrylic acid of 9 parts by weight
Four official's aliphatic polyurethane acrylic resin B of Resin A and 9 parts by weight；
Wherein the ultraviolet initiator includes the ultraviolet initiator B of the ultraviolet initiator A of 2 parts by weight, 1.5 parts by weight
With the ultraviolet initiator C of 2 parts by weight；
Six official's aliphatic polyurethane acrylic resins are polyurethane acroleic acid oligomer in the present embodiment；Three official's aliphatic polies
Urethane acrylate resin and four official's aliphatic polyurethane acrylic resins are aliphatic urethane acrylate oligomer；Four officials
Hydroxyl polyurethane acrylic resin is the polyurethane acroleic acid oligomer containing hydroxyl；TMPTA monomer is that three official's acrylic acid are oligomeric
Object.
The model of Zhan Xin resin (Shanghai) Co., Ltd. can be selected in four official's hydroxyl polyurethane acrylic resins in the present embodiment
EB8210 product, four official aliphatic polyurethane acrylic resin A select the model C N8000 of Sartomer Guangzhou Chemical Co., Ltd.
Product, the model C N8007 product of four official aliphatic polyurethane acrylic resin B selection Sartomer Guangzhou Chemical Co., Ltd., four
Official's aliphatic polyurethane acrylic resin A helps to enhance the adhesive force to ground, four official's aliphatic polyurethane acrylic resin B
Help to enhance flexibility, the two compounding realizes the performance balance of product；Three official's aliphatic polyurethane acrylic resins are selected wide
State city nine ties up the model UV-787 product of commerce and trade Co., Ltd, and six official's aliphatic polyurethane acrylic resins select Shenzhen's hat to reach
The model GD-400 product of prosperous Chemical Co., Ltd., TMPTA monomer select the model of Changxing material industry limited liability company
EM231 product.
Levelling agent is BYK-333 type levelling agent in the present embodiment；BYK-333 is organosilicon levelling agent, allows integral system
Levelability is more preferable, more smooth.Black slurry is the mill base of high-carbon black pigment grinding, and wherein the content (weight) of carbon black is 10%, carbon
Black content height will affect paint solidification degree, and the present embodiment uses the black slurry of low carbon black content, so that coating is easier to admittedly
Change, performance is more preferable.
Ultraviolet initiator A is 184 photoinitiator of BASF IRGACURE in the present embodiment, and ultraviolet initiator B is
BASF IRGACURE TPO photoinitiator, ultraviolet initiator C are 907 photoinitiator of BASF IRGACURE.
907 photoinitiator of BASFIRGACURE be free radical type solid photoinitiator, mainly with the vinyl monomer of single or multiple functional group
It is provided commonly for the UV solidification of unsaturated prepolymer (such as: acrylate) with oligomer, is particularly suitable in coloured UV curing system.
The present embodiment shares three kinds of photoinitiators, and the ultraviolet light of ultraviolet region different-waveband can be absorbed, so that the solidification of UV coating
It is more thorough, to provide better surface property for paint film.The present embodiment is to meet the problem of solidification of colored paint film using not
Same ultraviolet initiator is arranged in pairs or groups, while (hydroxyl using dual cure resin for the problem of meeting different illuminance
UV resin) arranging in pairs or groups with single UV curing resin (not hydroxyl UV resin) makes product reach better performance, specifically, the present embodiment
Middle ultraviolet light is easy the place being irradiated to, and the photoinitiator of UV causes polymerization and curing agent is reacted with the double of hydroxy resin, from
And guarantee the performance of big plane；And it is not easy the place being irradiated in ultraviolet light, pass through the hydroxyl of curing agent and dual cure resin
The reaction of base can effectively make up photoinitiator initiation polymerization it is on the low side, guarantee drying property herein, thus make product reach compared with
Best performance.
The parts by weight of four official's hydroxyl polyurethane acrylic resins are not less than four official's aliphatic polyurethane propylene in the present embodiment
The one of the sum of acid resin, three official's aliphatic polyurethane acrylic resins and six official's aliphatic polyurethane acrylic resin parts by weight
Half；And three the weight ratios of official's aliphatic polyurethane acrylic resin and six official's aliphatic polyurethane acrylic resins be 1:
(1-1.5), four official's hydroxyl polyurethane acrylic resins are used to provide the adhesive force and surface levelability of matrix in the present embodiment, and four
Official's aliphatic polyurethane acrylic resin provides paint film flexibility, and six official's aliphatic polyurethane acrylic resins provide paint film reaction
Curing rate and hardness of paint film, black slurry assign paint film color effect, and ultraviolet initiator is used to cause the poly- of monomer and polyester
It closes, levelling agent provides the levelability of paint film, and ethyl acetate and butyl acetate are solvent, gives the preferable mobility of paint and solvent
Release property ensures by the good stable curing effect of the good fit realization coating between above-mentioned each component and realizes that a painting adds
Color improves traditional spraying process twice.
The coating of the present embodiment is prepared in accordance with the following methods:
Step 1: under the conditions of being protected from light, it is by above-mentioned formula rate that four official's hydroxyl polyurethane acrylic resins, four officials are fatty
Adoption urethane acrylate resin, three official's aliphatic polyurethane acrylic resins, six official's aliphatic polyurethane acrylic resins and
The resin that TMPTA monomer makes viscosity big under 600-800 revs/min of stirring condition uniformly mixes, and stirs 10-20min, obtains
Mixture A, specifically stirring condition is 600 revs/min in the present embodiment；Mixing time is 10min；
Step 2: by 5-10 parts by weight (specifically the present embodiment be 8.5 parts by weight, i.e., formula in butyl acetate half
Parts by weight) butyl acetate stirring, under 300-700 revs/min of stirring condition be added 3-9 parts by weight (specifically in this implementation
Example be 5.5 parts by weight) ultraviolet initiator and uniform stirring 10-20min, obtain mixture B；Specifically stir in the present embodiment
Mixing condition is 300 revs/min, prevents the initiator of low viscosity from being beaten and flies；Mixing time is 15min；Wherein step 1 and step
Rapid two without sequencing requirement；
Step 3: mixture B is added under 300-700 revs/min of stirring condition in mixing mixture A, then plus
Enter 0.5-1 parts by weight (being specifically 0.5 parts by weight in the present embodiment) levelling agent, stirs 10-20min, obtain mixture C；Specifically
Stirring condition is 300 revs/min in the present embodiment；Mixing time is 15min；
Step 4: 3-5 parts by weight (specifically the present embodiment be 3 parts by weight) black slurry is stirred at 300-700 revs/min
It is added in mixture C under the conditions of mixing, and uniform stirring 10-20min；Obtain mixture D；Specific stirring condition in the present embodiment
It is 300 revs/min；Mixing time is 15min；
Step 5: 5-20 parts by weight are added into mixture D under 300-700 revs/min of stirring condition (specifically at this
Embodiment is 5 parts by weight) ethyl acetate and the butyl acetates of 5-10 parts by weight (be specifically 8.5 parts by weight in the present embodiment, i.e.,
The other half remaining parts by weight of butyl acetate in formula), uniform stirring simultaneously adjusts viscosity to 20-30S (25 DEG C, NK-2), uses
400-500 mesh filter screen filters to obtain the final product, and specifically stirring condition is 300 revs/min in the present embodiment；Strainer is 400 mesh.
The present embodiment carries out under the conditions of being protected from light when preparing, and can sufficiently improve the functioning efficiency of UV absorbers, with
Prevent it from absorbing ultraviolet light in the preparation process of coating and preparation system is caused to be cured crosslinking shadow under greenware condition
Ring the quality of UV coating and the filming performance of paint film；Ultraviolet initiator must first be then added to after butyl acetate dissolution anti-
It answers in system, to guarantee that it is uniformly dispersed in system.
It is at present first to brush one layer of black primer to add one layer of bloom again for the japanning routine operation of automotive upholstery in industry
The pitch-dark effect of bloom is presented in finishing coat, and the present embodiment then only needs one layer of bloom pitch-dark, and common process means are difficult to overcome
The problem that black UV curing degree is poor, performance is unstable, and a kind of coloured dual cure UV paint of automotive upholstery of the present embodiment
Film is formed using the coating of the present embodiment, and the advantage of comprehensive UV and two-component PU reach automotive upholstery special shape coating
Purpose is greatly improved for properties of product and decorative appearance, and the UV coating one of the present embodiment applies additive color effect, improves
The spraying method twice of conventional black priming paint+UV paint at present, thus energy saving raising production efficiency, and the coating of the present embodiment
The paint film that coating is formed may be implemented that crosslinking is fully cured, and solvent noresidue is not after-tacked, and good dispersion when spraying, and levelability is suitable
In, thixotropy is moderate, makes coating uniform, and no obvious tangerine peel exists without pinprick bubble, free from admixture point, and lacquer painting levelling is plentiful, gloss
It spends, meets production requirement standard；The present embodiment efficiently uses the solidification effect that dual cure resin improves paint film, utilizes simultaneously
The ultraviolet initiator of different wave length causes the solidification of paint film surface layer, middle layer and bottom respectively, makes the solidification effect of paint film substantially
Degree improves, and can be realized a painting additive color.
The coating and its paint film prepared using the formula and method of the present embodiment are with good water resistance, acetic acid
Ethyl ester and butyl acetate with the use of ensure that the deliquescent of each raw material while improving the drying property of construction again.
The crosslink density of the UV coating of the present embodiment after hardening is much higher than hot baking type coating, coating hardness, it is wear-resisting,
The performance indicator of the organic solvents various aspects such as acid and alkali-resistance, salt spray resistance, resistance to gasoline is very high, and especially its paint film is plentiful, gloss, table
Face smoothness, UV paint curing rate are fast, and high production efficiency, curing mechanism belongs to a kind of chain reaction of free radical, and crosslinking curing exists
Moment completes, and saves the energy.
Public VW TL226 is the most stringent standard of automotive upholstery industry currently on the market, present most of automobiles
The performance of paint equally detects using the standard of VW TL226 in inside gadget manufacturer, in automobile provided in this embodiment
The coloured dual cure UV coating of gadget is tested by multinomial performance, can fully meet the requirement of VW TL226 standard.
A kind of application method of UV coating for automobile interiors of the present embodiment can be suitable for ABS or PC or ABS+PC
The beautification and protection of substrate assign the black bloom effect of surface of the paint film piano.
Embodiment 2
A kind of application method of the UV coating for automobile interiors of the present embodiment, substantially with embodiment 1, the difference is that this
Coating in embodiment includes the raw material of following parts by weight:
Four 20 parts of official's hydroxyl polyurethane acrylic resins；
Four 25.9 parts of official's aliphatic polyurethane acrylic resins；
Wherein the four officials aliphatic polyurethane acrylic resin includes: four official's aliphatic polyurethane propylene of 10.9 parts by weight
Four official's aliphatic polyurethane acrylic resin B of acid resin A and 15 parts by weight；
Wherein the ultraviolet initiator include the ultraviolet initiator A of 1 parts by weight, 2 parts by weight ultraviolet initiator B and
The ultraviolet initiator C of 2 parts by weight；
Substantially with embodiment 1 in the preparation method for coating of the present embodiment, the difference is that being stirred in the present embodiment step 1
Condition is 800 revs/min, mixing time 15min；Stirring condition is 700 revs/min in remaining step, and mixing time is
10min using strainer is 500 mesh in step 5；Black slurry is the mill base of high-carbon black pigment grinding in the present embodiment, wherein carbon black
Content (weight) be 8%.
A kind of application method of the application method of UV coating for automobile interiors of the present embodiment is as follows:
S1, by UV coating, UV coating curing agent, UV paint thinner by weight 5: 1: 3 uniform mixing preparations, be sprayed at
On ground or prime coat, then the dry 10min of room temperature levelling keeps 15min in 80 DEG C of environment；
S2, UV solidification is carried out, UV exposure energy is 1800MJ/cm2。
UV paint thinner in the present embodiment includes the raw material of following parts by weight: 60 parts of ethyl acetate；Butyl acetate 60
Part；Preparation method are as follows: the ethyl acetate of the butyl acetate of parts by weight 60 and parts by weight 60 is mixed evenly after twenty minutes
?.
UV coating curing agent in the present embodiment includes the raw material of following parts by weight: polymer (China) limited public affairs are created in Cohan
78 parts of the Desmodur N3390 of department；28 parts of butyl acetate；Preparation method are as follows: by the butyl acetate and weight of parts by weight 28
The Desmodur N3390 of Cohan wound polymer (China) Co., Ltd of part 78 is mixed evenly after twenty minutes.
Embodiment 3
A kind of application method of the UV coating for automobile interiors of the present embodiment, substantially with embodiment 1, the difference is that this
Coating in embodiment includes the raw material of following parts by weight:
Four 25 parts of official's hydroxyl polyurethane acrylic resins；
Four 20 parts of official's aliphatic polyurethane acrylic resins；
Wherein the four officials aliphatic polyurethane acrylic resin includes: four official's aliphatic polyurethane acrylic acid of 12 parts by weight
Four official's aliphatic polyurethane acrylic resin B of Resin A and 8 parts by weight；
Wherein the ultraviolet initiator includes the ultraviolet initiator B of the ultraviolet initiator A of 2 parts by weight, 1.3 parts by weight
With the ultraviolet initiator C of 1 parts by weight；
Substantially with embodiment 1 in the preparation method for coating of the present embodiment, the difference is that being stirred in the present embodiment step 1
Condition is 700 revs/min, mixing time 12min；Stirring condition is 700 revs/min in remaining step, and mixing time is
20min using strainer is 450 mesh in step 5；Black slurry is the mill base of high-carbon black pigment grinding in the present embodiment, wherein carbon black
Content (weight) be 5%.
A kind of application method of the application method of UV coating for automobile interiors of the present embodiment is as follows:
S1, by UV coating, UV coating curing agent, UV paint thinner by weight 5: 1: 2.5 uniform mixing preparations, spraying
In on ground or prime coat, then the dry 8min of room temperature levelling keeps 10min in 70 DEG C of environment；
S2, UV solidification is carried out, UV exposure energy is 1500MJ/cm2。
UV paint thinner in the present embodiment includes the raw material of following parts by weight: 50 parts of ethyl acetate；Butyl acetate 50
Part；Preparation method are as follows: after the ethyl acetate of the butyl acetate of parts by weight 50 and parts by weight 50 is mixed evenly 15 minutes
?.
UV coating curing agent in the present embodiment includes the raw material of following parts by weight: polymer (China) limited public affairs are created in Cohan
75 parts of the Desmodur N3390 of department；25 parts of butyl acetate；Preparation method are as follows: by the butyl acetate and weight of parts by weight 25
After the Desmodur N3390 of Cohan wound polymer (China) Co., Ltd of part 75 is mixed evenly 15 minutes.
Embodiment 4
A kind of application method of the UV coating for automobile interiors of the present embodiment, substantially with embodiment 1, the difference is that this
Coating in embodiment includes the raw material of following parts by weight:
Four 20 parts of official's hydroxyl polyurethane acrylic resins；
Four 16 parts of official's aliphatic polyurethane acrylic resins；
Wherein the four officials aliphatic polyurethane acrylic resin includes: four official's aliphatic polyurethane acrylic acid of 8 parts by weight
Four official's aliphatic polyurethane acrylic resin B of Resin A and 8 parts by weight；
Wherein the ultraviolet initiator include the ultraviolet initiator A of 1.5 parts by weight, 1.2 parts by weight it is ultraviolet light-initiated
The ultraviolet initiator C of agent B and 1.5 parts by weight；
Embodiment 5
A kind of application method of the UV coating for automobile interiors of the present embodiment, substantially with embodiment 1, the difference is that this
Coating in embodiment includes the raw material of following parts by weight:
Four 25 parts of official's hydroxyl polyurethane acrylic resins；
Four 16 parts of official's aliphatic polyurethane acrylic resins；
Wherein the four officials aliphatic polyurethane acrylic resin includes: four official's aliphatic polyurethane acrylic acid of 8 parts by weight
Four official's aliphatic polyurethane acrylic resin B of Resin A and 8 parts by weight；
Wherein the ultraviolet initiator include the ultraviolet initiator A of 1 parts by weight, 1 parts by weight ultraviolet initiator B and
The ultraviolet initiator C of 1 parts by weight；
Black slurry is the mill base of high-carbon black pigment grinding in the present embodiment, and wherein the content (weight) of carbon black is 3%.
Such as the raw material composition that the following table 1 is coating in above-described embodiment.
The raw material of 1 embodiment coating of table forms
If the following table 2 is that the coating raw material composition for comparing case, preparation method and application method and above-described embodiment are basic
It is identical.
2 comparative example coating raw material of table composition
By coating obtained in above-described embodiment and comparative example carry out using, the paint film property of formation is detected, examine
The results are shown in Table 3 for survey.
3 paint film property testing result of table
Appearance is that whether there is or not the surfaces such as blistering, orange peel, shrinkage cavity, ripple, prickly heat for evaluation film forming in the performance detection of above-mentioned paint film
Flaw；Storage period is whether evaluation paint occurs thickening within the shelf-life, layering, play glue, change colour, returning the abnormal conditions such as thick；It is right
In each performance of the above paint film testing standard referring to public VW TL226 standard.As can be seen that the present embodiment from above-mentioned table 3
The coloured dual cure UV coating of automotive upholstery obtained can comply fully with public VW TL226 standard.
Embodiment 6
A kind of application method of the UV coating for automobile interiors of the present embodiment, substantially with embodiment 1, the difference is that this
Coating in embodiment includes the raw material of following parts by weight:
Four 30 parts of official's hydroxyl polyurethane acrylic resins；
Four 30 parts of official's aliphatic polyurethane acrylic resins；
Wherein the four officials aliphatic polyurethane acrylic resin includes: four official's aliphatic polyurethane acrylic acid of 15 parts by weight
Four official's aliphatic polyurethane acrylic resin B of Resin A and 15 parts by weight；
Wherein the ultraviolet initiator include the ultraviolet initiator A of 3 parts by weight, 3 parts by weight ultraviolet initiator B and
The ultraviolet initiator C of 3 parts by weight；
Black slurry is the mill base of high-carbon black pigment grinding in the present embodiment, and wherein the content (weight) of carbon black is 1%.
Embodiment 7
A kind of application method of the UV coating for automobile interiors of the present embodiment, substantially with embodiment 1, the difference is that this
Coating in embodiment includes the raw material of following parts by weight:
Four 25 parts of official's hydroxyl polyurethane acrylic resins；
Four 20 parts of official's aliphatic polyurethane acrylic resins；
Wherein the four officials aliphatic polyurethane acrylic resin includes: four official's aliphatic polyurethane acrylic acid of 10 parts by weight
Four official's aliphatic polyurethane acrylic resin B of Resin A and 10 parts by weight；
Wherein the ultraviolet initiator include the ultraviolet initiator A of 2 parts by weight, 2 parts by weight ultraviolet initiator B and
The ultraviolet initiator C of 2 parts by weight；
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (9)
1. a kind of application method of UV coating for automobile interiors, it is characterised in that: the following steps are included:
S1, by UV coating, UV curing agent and UV paint thinner by weight 5: 1: (2-3) is uniformly deployed, and is sprayed at material layer
On, then the dry 5-10min of room temperature levelling keeps 5-15min in 60 DEG C of -80 DEG C of environment；
S2, UV solidification is carried out, UV exposure energy is 1200-1800MJ/cm2。
2. a kind of application method of UV coating for automobile interiors according to claim 1, it is characterised in that: above-mentioned UV coating
Raw material including following parts by weight:
3. a kind of application method of UV coating for automobile interiors according to claim 1, it is characterised in that: above-mentioned UV coating
Diluent includes the raw material of following parts by weight: 40-60 parts of ethyl acetate；40-60 parts of butyl acetate；Preparation method are as follows: will weigh
After the ethyl acetate of the butyl acetate and parts by weight 40-60 of measuring part 40-60 is mixed evenly 10-20 minutes.
4. a kind of application method of UV coating for automobile interiors according to claim 1, it is characterised in that: above-mentioned UV coating
Curing agent includes the raw material of following parts by weight: 72-78 parts of Desmodur N3390；22-28 parts of butyl acetate；Preparation method
Are as follows: the Desmodur N3390 that the Cohan of the butyl acetate of parts by weight 22-28 and parts by weight 72-78 are created is mixed evenly
After 10-20 minutes.
5. a kind of application method of UV coating for automobile interiors according to claim 2, it is characterised in that: six official's aliphatic
Polyurethane acrylic resin is polyurethane acroleic acid oligomer；Three official's aliphatic polyurethane acrylic resins and four official's aliphatic polies
Urethane acrylate resin is aliphatic urethane acrylate oligomer；Four official's hydroxyl polyurethane acrylic resins are to contain hydroxyl
The polyurethane acroleic acid oligomer of base；TMPTA monomer is three official's acrylic acid oligomers.
6. a kind of application method of UV coating for automobile interiors according to claim 2, it is characterised in that: four official's aliphatic
Polyurethane acrylic resin includes following raw material:
Four 8-15 parts of acrylic resin A of official's aliphatic polyurethanes；
Four 8-15 parts of acrylic resin B of official's aliphatic polyurethanes.
7. a kind of application method of UV coating for automobile interiors according to claim 2, it is characterised in that: ultraviolet light-initiated
Agent includes the raw material of following mass parts:
184 1-3 parts of ultraviolet initiator；
1-3 parts of ultraviolet initiator TPO；
907 1-3 parts of ultraviolet initiator.
8. a kind of application method of UV coating for automobile interiors according to claim 2, it is characterised in that: black slurry is height
The mill base of colour black grinding, wherein the weight content of carbon black is not higher than 10%.
9. a kind of application method of UV coating for automobile interiors according to claim 1-8, it is characterised in that: UV
Coating is prepared in accordance with the following methods:
Step 1: under the conditions of being protected from light, by formula rate by four official's hydroxyl polyurethane acrylic resins, four official's aliphatic polyurethanes
Acrylic resin, three official's aliphatic polyurethane acrylic resins, six official's aliphatic polyurethane acrylic resins and TMPTA monomer exist
It is uniformly mixed under stirring condition, obtains mixture A；
Step 2: the butyl acetate of 5-10 parts by weight is stirred, the ultraviolet initiator of 3-9 parts by weight is added under agitation
And uniform stirring, obtain mixture B；
Step 3: mixture B is added under agitation in mixing mixture A, 0.5-1 parts by weight levelling agent is added,
10-20min is stirred, mixture C is obtained；
Step 4: 3-5 parts by weight black slurry is added under agitation in mixture C, and uniform stirring 10-20min；It obtains
Mixture D；
Step 5: the ethyl acetate of 5-20 parts by weight and the acetic acid of 5-10 parts by weight is added into mixture D under agitation
Butyl ester, uniform stirring simultaneously adjust viscosity to 20-30S (25 DEG C, NK-2), filter to obtain the final product.
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| CN111978583A (en) * | 2020-08-18 | 2020-11-24 | 李英敏 | Automotive interior plastic part and dual-curing UV coating composition thereof |
| CN114806393A (en) * | 2022-05-27 | 2022-07-29 | 湖南宏泰新材料有限公司 | One-coating color-adding high-gloss UV (ultraviolet) curing coating for automotive interior and preparation method thereof |
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