CN109943216A - A kind of height protects light and protects color acrylic acid modified polyurethane finishing coat and preparation method thereof - Google Patents
A kind of height protects light and protects color acrylic acid modified polyurethane finishing coat and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to paint fields, light, which is protected, more particularly to a kind of height protects color acrylic acid modified polyurethane finishing coat and preparation method thereof, it is made of component A and B component that weight ratio is 100:20-30, the component A is made of the raw material of following parts by weight: 40-50 parts of acrylic acid ester emulsion, 50-60 parts of polyaminoester emulsion, 3-6 parts of reinforcing agent, 10-15 parts of pigments and fillers, 1-3 parts of dispersing agent, 0.5-1 parts of defoaming agent, 0-5 parts of other auxiliary agents, deionized water surplus；The B component is waterborne curing agent.Reinforcing agent of the present invention contains the benzophenone structural with excellent light stabilization, ultraviolet light can consumingly be absorbed, ultraviolet light is avoided to damage finishing coat, itself will not decompose, change colour again simultaneously, also contain N- cyclohexyl P-nethoxyaniline structure, efficiency with good anti-ozone aging, anti-radiation aging and general aging, and the structure is placed under air and daylight for a long time and will not change colour, and help to obtain the finishing coat that light unfading is protected with height.
Description
Technical field
The invention belongs to paint fields, and in particular to a kind of height protects light and protects color acrylic acid modified polyurethane finishing coat and its system
Preparation Method.
Background technique
Polyurethane coating has good flexibility, impact resistance, corrosion resistance, wearability, and its appearance of film has
Not yet, there is good dicoration, it is combined with acrylate, its good adhesive force and weatherability can be assigned simultaneously
The features such as.
It, generally can be in coating system for anti ageing property, the corrosion resistance etc. for further improving polyurethane coating
Reinforcing agent, anti-aging agent, the auxiliary agents such as antioxidant are added, but these auxiliary agents are generally small molecule compound, should not be miscible or be fixed on
In system, and it is general without containing the active group that can be chemically reacted with polyurethane system, to make these auxiliary agents and system
Between lack chemical bonding, be easy to be precipitated from system, and coating be adversely affected.
Summary of the invention
In order to solve the deficiencies in the prior art, light is protected the invention discloses a kind of height and protects color acrylic acid modified polyurethane face
Paint and preparation method thereof, prepared finishing coat have excellent ageing-resistant performance, and high mechanical strength protects color with outstanding guarantor's light
Performance.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of height guarantor light guarantor's color acrylic acid modified polyurethane finishing coat, the component A and B group for being 100:20-30 by weight ratio
Be grouped as, the component A is made of the raw material of following parts by weight: 40-50 parts of acrylic acid ester emulsion, 50-60 parts of polyaminoester emulsion,
3-6 parts of reinforcing agent, 10-15 parts of pigments and fillers, 1-3 parts of dispersing agent, 0.5-1 parts of defoaming agent, 0-5 parts of other auxiliary agents, more than deionized water
Amount；The B component is waterborne curing agent.
Wherein, acrylic acid ester emulsion and polyaminoester emulsion are water emulsion liquid, and deionized water is primarily used to dispersion and increases
Strong agent, pigments and fillers, dispersing agent, defoaming agent and other auxiliary agents can carry out adjusting appropriate according to the concentration of system.In the present invention
In, deionized water is 15-25 parts preferred.
Preferably, the structural formula of above-mentioned reinforcing agent are as follows:
The reinforcing agent the preparation method comprises the following steps:
(1) p-hydroxyanisole, Isosorbide-5-Nitrae-cyclohexanediamine and skeletal nickel catalyst are added in reaction kettle, are heated under stirring
190 DEG C, condensation reaction is carried out, Isosorbide-5-Nitrae-cyclohexanediamine evaporation is taken the water that reaction generates out of, separated water into after condensation, Isosorbide-5-Nitrae-hexamethylene two
Amine returns to reaction kettle, and until condensation reaction proceeds to anhydrous generation, catalyst is recycled in filters pressing, steams water and unreacted
Raw material, recrystallization is washing, filtering, dry, obtain product 1, reaction equation is as follows:
(2) 2,2',4,4'-tetrahydroxybenzophenone is dissolved in DMF, adjusts pH to 6 or so with MES buffer, is added
EDC activates 5-10min, adds NHS (EDC and NHS molar ratio be 4:1), is uniformly mixed, then with PBS buffer solution adjust pH to
7.4 or so, product 1 (molar ratio of 2,2',4,4'-tetrahydroxybenzophenone and product 1 is 1:2) is added, is uniformly mixed, room temperature
2h is reacted, oil pump vacuum distillation removes DMF, after being cleaned up with deionized water, is freeze-dried under vacuum, obtains product 2, reacts
Equation is as follows:
(3) product 2 is dissolved in DMSO, Toluene-2,4-diisocyanate is then added, (product 2 and Toluene-2,4-diisocyanate, 4- bis- are different for 4- diisocyanate
The molar ratio of cyanate is 1:3) and tin laurate (account for product 2 and Toluene-2,4-diisocyanate, the 0.5% of 4- diisocyanate gross mass), in
85 DEG C of reaction 2h, filters pressing recycle catalyst, steam unreacted raw material and solvent, recrystallize, and washing, is done filtering
It is dry, it obtains product 3 (reinforcing agent i.e. of the invention), reaction equation is as follows:
Preferably, above-mentioned pigments and fillers are one of talcum powder, calcium carbonate, silica, titanium dioxide, mica or several
Kind.
Preferably, above-mentioned dispersing agent is one or more of BYK-2163, BYK-1150, BYK-2012.
Preferably, above-mentioned defoaming agent is one of BYK-066N, BYK-019, BYK-028, BYK054, BYK-057
Or it is several.
Preferably, other above-mentioned auxiliary agents are one or more of thickener, levelling agent, antibacterial agent.
Preferably, above-mentioned waterborne curing agent is aqueous HDI type curing agent or aqueous polyisocyanate curing agent.
A kind of height protects the preparation method of light guarantor's color acrylic acid modified polyurethane finishing coat, includes the following steps:
(1) raw material in component A is weighed in proportion, and first acrylic acid ester emulsion and polyaminoester emulsion are added in stirred tank,
Then deionized water and dispersing agent is added, adds pigments and fillers, is stirring evenly and then adding into other auxiliary agents and defoaming agent, stirs evenly
After add reinforcing agent, be uniformly mixed obtain component A；
(2) it is proportionally added into B component immediately after obtaining component A, is uniformly mixed, filtering.
The present invention is with following the utility model has the advantages that (1) reinforcing agent of the present invention, which contains, stablizes work with excellent light
Benzophenone structural can consumingly absorb ultraviolet light, ultraviolet light is avoided to damage finishing coat, while itself again will not
It decomposes, discoloration, also contains N- cyclohexyl P-nethoxyaniline structure, there is good anti-ozone aging, anti-radiation aging and one
As aging efficiency, and the structure is placed under air and daylight for a long time and will not change colour, and helping to obtain, there is height to protect
The finishing coat of light unfading；
(2) reinforcing agent of the invention replaces ultraviolet absorbing agent, antioxidant, the anti-aging agent of small molecule by macromolecular structure
Deng, it is present in reinforcing agent more steadily in system, is not easy to be precipitated, thus play the role of to playing long-lasting protection,
The features such as making prepared finishing coat corrosion resistance with super strength and weatherability；
(3) reinforcing agent of the invention introduces isocyanate structural, can participate in the curing reaction of polyurethane system, not only
Be conducive to the evenly dispersed of reinforcing agent, play one's part to the full, form firm chemical bond between reinforcing agent and matrix resin, reduces
Adverse effect caused by due to being precipitated or move, old performance is prevented in raising, and reinforcing agent of the invention has more cyclic annular knot
Structure also advantageously improves the shock resistance of finishing coat；
(4) reinforcing agent of the invention has " stabilizer blade " structure, is conducive to lock firmly into reinforcing agent in system, even if
Long-time service causes chemical bond to be broken, and " stabilizer blade " structure can also be locked firmly into system, avoids because long-term
Failure is precipitated in reinforcing agent caused by being subjected to wind, solarization, drenching with rain, and improves anti-corrosion, weather-proof, anti ageing property, makes prepared
Finishing coat still there is height to protect light unfading after long-term use；
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the nmr spectrum of product 1 of the present invention.
Fig. 2 is the nmr spectrum of product 2 of the present invention.
Fig. 3 is the nmr spectrum of product 3 (i.e. reinforcing agent) of the present invention.
Specific embodiment
Presently in connection with embodiment, the present invention is described in further detail.
Fig. 1-3 is the nmr spectrum that the present invention prepares each product obtained during reinforcing agent.
Fig. 1 is the nmr spectrum of product 1, and nuclear magnetic data is as follows: δ=6.70~6.77ppm (a, 4H), δ=5.10
~5.16ppm (b, 1H), δ=3.78~3.85ppm (c, 3H), δ=2.51~2.58ppm (d, 2H), δ=1.71~
1.76ppm (e, 2H), δ=1.51~1.53ppm (f, 2H).The absorption peak and its integrated value and product 1 of each proton of test gained
Middle proton is completely the same, illustrates to have obtained product 1.
Fig. 2 is the nmr spectrum of product 2, and nuclear magnetic data is as follows: δ=11.50~11.53ppm (a, 2H), δ=
7.20~7.25ppm (b, 2H), δ=6.70~6.77ppm (c, 8H), δ=6.26~6.33ppm (d, 4H), δ=5.10~
5.15ppm (e, 4H), δ=3.78~3.84ppm (f, 6H), δ=2.51~2.57ppm (h, 4H), δ=1.71~1.76ppm
(i, 8H), δ=1.43~1.47ppm (j, 8H).The absorption peak and its integrated value of each proton of test gained and proton in product 2 are complete
It is complete consistent, illustrate to have obtained product 2.
Fig. 3 is the nmr spectrum of product 3 (i.e. reinforcing agent), and nuclear magnetic data is as follows: δ=9.81~9.86ppm (a,
2H), δ=7.60~7.63ppm (b, 2H), δ=7.45~7.48ppm (c, 4H), δ=7.31~7.36ppm (d, 2H), δ=
6.71~6.77ppm (e, 8H), δ=6.58~6.61ppm (f, 4H), δ=5.11~5.15ppm (h, 4H), δ=3.78~
3.84ppm (i, 6H), δ=2.51~2.57ppm (j, 4H), δ=2.30~2.33ppm (k, 6H), δ=1.71~1.76ppm
(l, 8H), δ=1.43~1.47ppm (m, 8H).The absorption peak and its integrated value of each proton of test gained (enhance with product 3
Agent) in proton it is completely the same, illustrate to have obtained product 3 (i.e. reinforcing agent).
The preparation method that height protects light guarantor's color acrylic acid modified polyurethane finishing coat includes the following steps:
(1) raw material in component A is weighed in proportion, and first acrylic acid ester emulsion and polyaminoester emulsion are added in stirred tank,
Then deionized water and dispersing agent is added, adds pigments and fillers, is stirring evenly and then adding into other auxiliary agents and defoaming agent, stirs evenly
After add reinforcing agent, be uniformly mixed obtain component A；
(2) it is proportionally added into B component immediately after obtaining component A, is uniformly mixed, filtering.
Embodiment 1
Component A is made of the raw material of following parts by weight: 45 parts of acrylic acid ester emulsion, 55 parts of polyaminoester emulsion, reinforcing agent 5
Part, 12 parts of titanium dioxide, 2 parts of BYK-2163,0.5- parts of BYK-066N, 20 parts of deionized water；B component is solid for aqueous HDI type
Agent.
The weight ratio of component A and B component is 100:25.
Embodiment 2
Component A is made of the raw material of following parts by weight: 50 parts of acrylic acid ester emulsion, 50 parts of polyaminoester emulsion, reinforcing agent 3
Part, 10 parts of mica, 1 part of BYK-1150,1- parts of BYK-208,2 parts of flamazine, 15 parts of deionized water；B component is aqueous
HDI type curing agent.
The weight ratio of component A and B component is 100:30.
Embodiment 3
Component A is made of the raw material of following parts by weight: 40 parts of acrylic acid ester emulsion, 60 parts of polyaminoester emulsion, reinforcing agent 6
Part, 15 parts of calcium carbonate, 1 part of BYK-2012,1- parts of BYK-057,0.2 part of BYK-300,25 parts of deionized water；B component is water
Property polyisocyanate curing agent.
The weight ratio of component A and B component is 100:20.
Comparative example 1
Component A is made of the raw material of following parts by weight: 45 parts of acrylic acid ester emulsion, 55 parts of polyaminoester emulsion, benzophenone 1
Part, 2 parts of N- cyclohexyl P-nethoxyaniline, Toluene-2,4-diisocyanate, 2 parts of 4- diisocyanate, 12 parts of titanium dioxide, 2 parts of BYK-2163,
0.5- parts of BYK-066N, 20 parts of deionized water；B component is aqueous HDI type curing agent.
The weight ratio of component A and B component is 100:25.
Comparative example 2
Component A is made of the raw material of following parts by weight: 45 parts of acrylic acid ester emulsion, 55 parts of polyaminoester emulsion, benzophenone 5
Part, 12 parts of titanium dioxide, 2 parts of BYK-2163,0.5- parts of BYK-066N, 20 parts of deionized water；B component is solid for aqueous HDI type
Agent.
The weight ratio of component A and B component is 100:25.
Comparative example 3
Component A is made of the raw material of following parts by weight: 45 parts of acrylic acid ester emulsion, 55 parts of polyaminoester emulsion, N- cyclohexyl
5 parts of P-nethoxyaniline, 12 parts of titanium dioxide, 2 parts of BYK-2163,0.5- parts of BYK-066N, 20 parts of deionized water；B component
For aqueous HDI type curing agent.
The weight ratio of component A and B component is 100:25.
Comparative example 4
Component A is made of the raw material of following parts by weight: 45 parts of acrylic acid ester emulsion, 55 parts of polyaminoester emulsion, Toluene-2,4-diisocyanate, 4-
5 parts of diisocyanate, 12 parts of titanium dioxide, 2 parts of BYK-2163,0.5- parts of BYK-066N, 20 parts of deionized water；B component is
Aqueous HDI type curing agent.
The weight ratio of component A and B component is 100:25.
The performance test of finishing coat prepared by embodiment 1-3 and comparative example 1-4 is shown in Table 1.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (8)
1. a kind of height protects light and protects color acrylic acid modified polyurethane finishing coat, it is characterised in that: the A for being 100:20-30 by weight ratio
Component and B component composition, the component A are made of the raw material of following parts by weight: 40-50 parts of acrylic acid ester emulsion, polyurethane cream
50-60 parts of liquid, 3-6 parts of reinforcing agent, 10-15 parts of pigments and fillers, 1-3 parts of dispersing agent, 0.5-1 parts of defoaming agent, 0-5 parts of other auxiliary agents,
Deionized water surplus；The B component is waterborne curing agent.
2. height as described in claim 1 protects light and protects color acrylic acid modified polyurethane finishing coat, it is characterised in that: the reinforcing agent
Structural formula are as follows:
3. height as described in claim 1 protects light and protects color acrylic acid modified polyurethane finishing coat, it is characterised in that: the pigments and fillers
For one or more of talcum powder, calcium carbonate, silica, titanium dioxide, mica.
4. height as described in claim 1 protects light and protects color acrylic acid modified polyurethane finishing coat, it is characterised in that: the dispersing agent
For one or more of BYK-2163, BYK-1150, BYK-2012.
5. height as described in claim 1 protects light and protects color acrylic acid modified polyurethane finishing coat, it is characterised in that: the defoaming agent
For one or more of BYK-066N, BYK-019, BYK-028, BYK054, BYK-057.
6. height as described in claim 1 protects light and protects color acrylic acid modified polyurethane finishing coat, it is characterised in that: described other help
Agent is one or more of thickener, levelling agent, antibacterial agent.
7. 1 height as described in claim 1 protects light and protects color acrylic acid modified polyurethane finishing coat, it is characterised in that: described aqueous solid
Agent is aqueous HDI type curing agent or aqueous polyisocyanate curing agent.
8. a kind of preparation method highly protected light as described in claim any one of 1-7 and protect color acrylic acid modified polyurethane finishing coat,
It is characterized by comprising following steps:
(1) raw material in component A is weighed in proportion, first acrylic acid ester emulsion and polyaminoester emulsion is added in stirred tank, then
Deionized water and dispersing agent is added, adds pigments and fillers, is stirring evenly and then adding into other auxiliary agents and defoaming agent, after mixing evenly again
Reinforcing agent is added, is uniformly mixed and obtains component A；
(2) it is proportionally added into B component immediately after obtaining component A, is uniformly mixed, filtering.
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| CN201910220770.XA CN109943216B (en) | 2019-03-22 | 2019-03-22 | High-gloss and color-retention acrylic modified polyurethane finish paint and preparation method thereof |
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| JPH03152176A (en) * | 1989-11-08 | 1991-06-28 | Mitsubishi Motors Corp | Colorless, transparent and high-quality film-forming coating material |
| CN102952460A (en) * | 2011-08-30 | 2013-03-06 | 上海富臣化工有限公司 | Bi-component water-based wooden door varnish |
| CN104497766A (en) * | 2014-11-28 | 2015-04-08 | 张明 | Bacteriostatic coating and preparation method thereof |
| CN105505169A (en) * | 2015-12-31 | 2016-04-20 | 澳达树熊涂料(惠州)有限公司 | Water-borne bi-component white gloss topcoat and preparation method thereof |
| CN105690529A (en) * | 2016-02-17 | 2016-06-22 | 江苏肯帝亚木业有限公司 | Surface color treatment process for solid wood composite floor through carbonizing |
| CN108047920A (en) * | 2017-11-30 | 2018-05-18 | 宜兴市巨人涂料有限公司 | A kind of bi-component high abrasion waterborne acrylic polyurethane surface paint and preparation method thereof |
-
2019
- 2019-03-22 CN CN201910220770.XA patent/CN109943216B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03152176A (en) * | 1989-11-08 | 1991-06-28 | Mitsubishi Motors Corp | Colorless, transparent and high-quality film-forming coating material |
| CN102952460A (en) * | 2011-08-30 | 2013-03-06 | 上海富臣化工有限公司 | Bi-component water-based wooden door varnish |
| CN104497766A (en) * | 2014-11-28 | 2015-04-08 | 张明 | Bacteriostatic coating and preparation method thereof |
| CN105505169A (en) * | 2015-12-31 | 2016-04-20 | 澳达树熊涂料(惠州)有限公司 | Water-borne bi-component white gloss topcoat and preparation method thereof |
| CN105690529A (en) * | 2016-02-17 | 2016-06-22 | 江苏肯帝亚木业有限公司 | Surface color treatment process for solid wood composite floor through carbonizing |
| CN108047920A (en) * | 2017-11-30 | 2018-05-18 | 宜兴市巨人涂料有限公司 | A kind of bi-component high abrasion waterborne acrylic polyurethane surface paint and preparation method thereof |
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