CN109280477A - A kind of preparation method of coloured dual cure UV coating - Google Patents
A kind of preparation method of coloured dual cure UV coating Download PDFInfo
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- CN109280477A CN109280477A CN201811090757.9A CN201811090757A CN109280477A CN 109280477 A CN109280477 A CN 109280477A CN 201811090757 A CN201811090757 A CN 201811090757A CN 109280477 A CN109280477 A CN 109280477A
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- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
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- 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
Abstract
The invention discloses a kind of preparation methods of coloured dual cure UV coating, belong to coating preparation field.The invention includes the following steps: one, four official's hydroxyl polyurethane acrylic resins, four official's aliphatic polyurethane acrylic resins, three official's aliphatic polyurethane acrylic resins, six official's aliphatic polyurethane acrylic resins and TMPTA monomer mixed into obtain mixture A；Two, butyl acetate is added ultraviolet initiator and stirs to obtain mixture B；Three, mixture B is added in mixture A, and levelling agent is added to stir to obtain mixture C；Four, black slurry is added in mixture C, stirs to get mixture D；Five, ethyl acetate is added into mixture D and butyl acetate, uniform stirring filter to obtain the final product.The present invention overcome in the prior art automotive upholstery need to spray twice, the lower deficiency of production efficiency, be formed by paint film with the performances such as solvent resistant, water resistance, 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 system of coloured dual cure UV coating
Preparation 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, such as Chinese Patent Application No.: 2015107419720, the applying date: on November 4th, 2015, innovation and creation name
Referred to as: the hydrophilic antifogging coating composition of photo-thermal dual curable, this application discloses a kind of the hydrophilic anti-of photo-thermal dual curable
Mist coating composition；Composition includes 32~50 parts of hydrophilic heat reactive resin, and 10~15 parts of waterborne curing agent, the propylene of hydroxyl
10~20 parts of acid ester monomer, 10~20 parts of polymerisable surfactant, 0.5~1 part of photoinitiator；5~10 parts of cosolvent；Water
400 parts.This application can be applied to plastic rubber substrate surface, after first passing through heat cure, using photocuring, have excellent hold
Continue anti-fog properties and wear-resisting property, while having good adhesive force to plastic rubber substrate, can be widely used in antifogging vehicle window pad pasting, automobile
Adverse-weather lamp, bathroom mirror etc., have a good application prospect.
For another example Chinese Patent Application No.: 201110027968X, the applying date: on January 26th, 2011, invention and created name are as follows:
A kind of ultraviolet light UV curing coating and preparation method, a kind of ultraviolet light UV curing coating of this application and preparation method, it is with poly-
Composition based on ester acrylate, using initiator and auxiliary agent as curing agent, using levelling agent organic solvent as auxiliary material, with functional first
Base acrylate reactive monomer is mixed as regulator.Preparation method includes ingredient, is dispersed with stirring, modulates three ranks
Section.This application is suitable for BMC, PET, PC material, and properties of product are lasting, and meets ROHS instruction and require, and be entirely capable of reaching
And surmount market, automobile, motorcycle, car light interior paint standard, and it is versatile.In conclusion the above application case
All refer to coating material solidified and its preparation, but above-mentioned application case lacking of not can solve that current automotive upholstery needs to spray twice
It falls into, properties of product are still 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 preparation method of coloured dual cure UV coating, coating is for ABS, PC, ABS+PC and the modeling painted
Gum base materials have good adhesive force, are formed by paint film with the performances such as solvent resistant, water resistance, can improve current secondary
Spraying effect, 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 preparation method of coloured dual cure UV coating of the invention, comprising the following steps:
Step 1: various raw materials are got out, under the conditions of being protected from light, by four official's hydroxyl polyurethane acrylic resins, four official's rouge
Fat adoption urethane acrylate resin, three official's aliphatic polyurethane acrylic resins, six official's aliphatic polyurethane acrylic resins and
TMPTA monomer uniformly mixes under agitation, obtains mixture A；
Step 2: part butyl acetate is stirred, ultraviolet initiator and uniform stirring are added under agitation, obtains
Mixture B；
Step 3: mixture B is added under agitation in mixing mixture A, levelling agent is added, stirs 10-
20min obtains mixture C；
Step 4: black slurry is added under agitation in mixture C, and uniform stirring 10-20min；It is mixed
Expect D；
Step 5: ethyl acetate and remaining butyl acetate is added into mixture D under agitation, uniform stirring is simultaneously
Viscosity is adjusted to 20-30S (25 DEG C, NK-2), is filtered to obtain the final product.
Further, above-mentioned raw materials include the raw material of following parts by weight altogether:
Further, the butyl acetate parts by weight added in the butyl acetate parts by weight and step 5 added in step 2
It is identical.
Further, stirring condition is 600-800 revs/min in step 1；Stirring condition is 300- in remaining step
700 revs/min.
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, levelling agent is BYK-333 type levelling agent.
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%.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) preparation method of a kind of coloured dual cure UV coating 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
Crosslinking is fully cured, solvent noresidue is 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) preparation method of a kind of coloured dual cure UV coating of the invention, the crosslink density after paint solidification is significantly
Higher than hot baking type coating, performance indicator of the coating in organic solvents various aspects such as hardness, wear-resisting, acid and alkali-resistance, salt spray resistance, resistance to gasoline
Very high, especially its paint film is 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 preparation method of coloured dual cure UV coating of the invention；
Fig. 2 is the flow diagram of the application method of coloured dual cure UV coating of the 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 preparation method of a kind of coloured dual cure UV coating of the present embodiment, wherein coating institute
The raw material needed comprises the following components in 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.BASF
907 photoinitiator of IRGACURE is free radical type solid photoinitiator, mainly with the vinyl monomer of single or multiple functional group and together
Polymers is provided commonly for the UV solidification of unsaturated prepolymer (such as: acrylate), is particularly suitable in coloured UV curing system.This reality
It applies example to share three kinds of photoinitiators, the ultraviolet light of ultraviolet region different-waveband can be absorbed, so that the solidification of UV coating is more
Thoroughly, to provide better surface property for paint film.The present embodiment is to meet the problem of solidification of colored paint film using different
Ultraviolet initiator is arranged in pairs or groups, while being the problem of meeting different illuminance using dual cure resin (hydroxyl UV tree
Rouge) arranging in pairs or groups with single UV curing resin (not hydroxyl UV resin) makes product reach better performance, and it is specifically, purple in the present embodiment
Outer 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, to protect
Demonstrate,prove 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 polymerization that reaction can effectively make up photoinitiator initiation is on the low side, guarantees drying property herein, so that product be made to reach preferable property
Energy.
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；By the good stable curing effect of the good fit realization coating between above-mentioned each component, ensures and realize 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: get out various raw materials, under the conditions of being protected from light, by above-mentioned formula rate by four official's hydroxyl polyurethane propylene
Acid resin, four official's aliphatic polyurethane acrylic resins, three official's aliphatic polyurethane acrylic resins, six official's aliphatic polyurethanes
The resin that acrylic resin and TMPTA monomer make viscosity big under 600-800 revs/min of stirring condition uniformly mixes, stirring
10-20min obtains mixture A, and 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, step 2
The butyl acetate parts by weight added in the butyl acetate parts by weight and step 5 of middle addition are identical.
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 the preparation method of coloured dual cure UV coating of the present embodiment is as follows:
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。
UV paint thinner in the present embodiment includes the raw material of following parts by weight: 40-60 parts of ethyl acetate；Butyl acetate
40-60 parts；Preparation method are as follows: the ethyl acetate of the butyl acetate of parts by weight 40-60 and parts by weight 40-60 are mixed equal
After 10-20 minutes even；Specifically UV paint thinner includes 40 parts and 40 parts of butyl acetate of ethyl acetate in the present embodiment,
It is mixed evenly when preparation 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
N339072-78 parts of the Desmodur 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 72 parts of Desmodur N3390 in the present embodiment；22 parts of butyl acetate,
It is mixed evenly when preparation 10 minutes.
A kind of preparation method of coloured dual cure UV coating of the present embodiment can be suitable for ABS or PC or ABS+
The beautification and protection of PC substrate assign the black bloom effect of surface of the paint film piano.
Embodiment 2
A kind of preparation method of the coloured dual cure UV coating of the present embodiment, substantially with embodiment 1, the difference is that
Coating in the present 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
Weight content be 8%.
A kind of application method of the preparation method of coloured dual cure UV coating 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 preparation method of the coloured dual cure UV coating of the present embodiment, substantially with embodiment 1, the difference is that
Coating in the present 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
Weight content be 5%.
A kind of application method of the preparation method of coloured dual cure UV coating 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 preparation method of the coloured dual cure UV coating of the present embodiment, substantially with embodiment 1, the difference is that
Coating in the present 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；
Black slurry is the mill base of high-carbon black pigment grinding in the present embodiment, and wherein the weight content of carbon black is 1%.
Embodiment 5
A kind of preparation method of the coloured dual cure UV coating of the present embodiment, substantially with embodiment 1, the difference is that
Coating in the present 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；
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 preparation method of the coloured dual cure UV coating of the present embodiment, substantially with embodiment 1, the difference is that
Coating in the present 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；
Embodiment 7
A kind of preparation method of the coloured dual cure UV coating of the present embodiment, substantially with embodiment 1, the difference is that
Coating in the present 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 preparation method of coloured dual cure UV coating, which comprises the following steps:
Step 1: various raw materials are got out, under the conditions of being protected from light, by four official's hydroxyl polyurethane acrylic resins, four official's aliphatic
Polyurethane acrylic resin, three official's aliphatic polyurethane acrylic resins, six official's aliphatic polyurethane acrylic resins and TMPTA
Monomer uniformly mixes under agitation, obtains mixture A；
Step 2: part butyl acetate is stirred, ultraviolet initiator and uniform stirring are added under agitation, is mixed
Expect B；
Step 3: mixture B is added under agitation in mixing mixture A, levelling agent is added, stirs 10-
20min obtains mixture C；
Step 4: black slurry is added under agitation in mixture C, and uniform stirring 10-20min；Obtain mixture D；
Step 5: into mixture D, addition ethyl acetate and remaining butyl acetate, uniform stirring are simultaneously adjusted under agitation
Viscosity is filtered to 20-30S (25 DEG C, NK-2) to obtain the final product.
2. a kind of preparation method of coloured dual cure UV coating according to claim 1, it is characterised in that: above-mentioned raw materials
It comprises the following components in parts by weight altogether:
3. a kind of preparation method of coloured dual cure UV coating according to claim 1, it is characterised in that: in step 2
The butyl acetate parts by weight added in the butyl acetate parts by weight and step 5 of addition are identical.
4. a kind of preparation method of coloured dual cure UV coating according to claim 1, it is characterised in that: in step 1
Stirring condition is 600-800 revs/min；Stirring condition is 300-700 revs/min in remaining step.
5. a kind of preparation method of coloured dual cure UV coating according to claim 1, it is characterised in that: six officials fat
Adoption urethane acrylate resin is polyurethane acroleic acid oligomer；Three official's aliphatic polyurethane acrylic resins and four official's aliphatic
Polyurethane acrylic resin is aliphatic urethane acrylate oligomer；Four official's hydroxyl polyurethane acrylic resins be containing
The polyurethane acroleic acid oligomer of hydroxyl；TMPTA monomer is three official's acrylic acid oligomers.
6. a kind of preparation method of coloured dual cure UV coating according to claim 1, it is characterised in that: four officials fat
Adoption urethane acrylate 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 preparation method of coloured dual cure UV coating according to claim 1, it is characterised in that: ultraviolet light draws
Hair 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 preparation method of coloured dual cure UV coating according to claim 1, it is characterised in that: levelling agent is
BYK-333 type levelling agent.
9. a kind of preparation method of coloured dual cure UV coating according to claim 1-8, it is characterised in that:
Black slurry is the mill base of high-carbon black pigment grinding, and wherein the weight content of carbon black is not higher than 10%.
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| CN109880517A (en) * | 2019-03-12 | 2019-06-14 | 浙江纳美新材料股份有限公司 | A kind of dedicated UV mill base of woodenware |
| CN110982419A (en) * | 2019-12-25 | 2020-04-10 | 清远雅克化工有限公司 | Special high-performance dual-curing UV (ultraviolet) coating for automotive upholstery and preparation method 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 |
| CN116082944A (en) * | 2023-02-23 | 2023-05-09 | 芜湖春风新材料有限公司 | Dual UV (ultraviolet) curing coating with ultrahigh boiling resistance, and preparation method and application thereof |
| CN117363202A (en) * | 2023-10-27 | 2024-01-09 | 浙江圣力邦漆业有限公司 | Preparation method and device of dual-curing UV piano black paint |
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| CN117363202B (en) * | 2023-10-27 | 2024-04-12 | 浙江圣力邦漆业有限公司 | Preparation method and device of dual-curing UV piano black paint |
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| CN109280477B (en) | 2020-12-25 |
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