CN109593453A - A kind of preparation method of high-hard, transparent polyurethane coating - Google Patents
A kind of preparation method of high-hard, transparent polyurethane coating Download PDFInfo
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- CN109593453A CN109593453A CN201811555465.8A CN201811555465A CN109593453A CN 109593453 A CN109593453 A CN 109593453A CN 201811555465 A CN201811555465 A CN 201811555465A CN 109593453 A CN109593453 A CN 109593453A
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- polyurethane coating
- coating
- sand mill
- method described
- aqueous polyurethane
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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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to functional paint technologies of preparing, it is desirable to provide a kind of preparation method of high-hard, transparent polyurethane coating.Under agitation, glass powder, water silica sol and aqueous polyurethane monomer are mixed；Then mixture is gone in nanometer sand mill and is ground, obtain aqueous polyurethane coating.Crosslinking agent is added in aqueous polyurethane coating, is sprayed on processed product surface after mixing；It is cured to obtain polyurethane coating at room temperature after surface drying.The superfine glass micro mist that the present invention uses, refractive index, closest to polyurethane coating, not will cause transmitance decline, while the mechanical performance of coating can be improved in inorganic matter；The lesser water silica sol of partial size is preferable to the modified effect of aqueous polyurethane, it is not easy to occur, the two combines but the pencil hardness of coating improves 2H.Combination process is ground using nano-machine, the refraction that interface void generates between organic resin and inorganic reinforcement phase can be eliminated to greatest extent, to improve mechanical performance and guarantee transmitance.
Description
Technical field
The present invention relates to functional coating technology of preparing, in particular to a kind of preparation side of high-hard, transparent polyurethane coating
Method.
Background technique
Polyurethane material has many advantages, such as that intensity is high, wearability is strong, tear resistance is strong, in environmental protection coating material, emerging environment-friendlyadhesive adhesive
The glutinous industries usage amount such as agent and water-based ink increasingly increases.As people's environmental consciousness gradually increases, using water as decentralized medium
Environment-friendly water-based polyurethane (WPU) have many advantages, such as low VOCs discharge, nontoxic, pollution-free, cause extensive attention.Although
WPU is a kind of trend as ep-type material substitution solvent borne polyurethane, but since the introducing of hydrophilic group causes performance not as good as molten
Dosage form polyurethane, such as the shortcomings that mechanical property is bad, poor water resistance, especially poor mechanical property, seriously affect each side of coating
Face performance.
Summary of the invention
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, provide a kind of poly- ammonia of high-hard, transparent
The preparation method of ester coating.
In order to solve the technical problem, solution of the invention is:
A kind of preparation method of high-hard, transparent polyurethane coating is provided, comprising the following steps:
(1) under agitation, by 15~20 mass parts glass powders, 20 mass parts water silica sols and 60~65 mass parts
Aqueous polyurethane monomer mixing 30min；Then mixture is gone into 20~40min of grinding in nanometer sand mill, obtained aqueous poly-
Urethane coating；
(2) crosslinking agent is added in aqueous polyurethane coating by 5% mass ratio, is sprayed on after mixing to be processed
Product surface；At room temperature after surface drying 30min, polyurethane coating is obtained through solidification in 7 days.
In the present invention, the average grain diameter of the water silica sol is 3nm, solid content 10%.
In the present invention, the glass powder is the low borosilicate glass powder of 8000 purposes.
In the present invention, abrasive media in the nanometer sand mill is the zirconium oxide bead of diameter 1mm.
In the present invention, the nanometer sand mill is thinkling sound's water chestnut nanometer sand mill LSM-1.4L type product.
In the present invention, the crosslinking agent is organosilicon cross-linking agent.
In the present invention, when the step (2) is sprayed, coating thickness is controlled at 100 microns.
Compared with prior art, the invention has the following advantages:
1, the means of aqueous polyurethane coating hardening mainly increase filler and nano combined technique, but all refer to hardening
The problem of ineffective and transparency decline.Compared with existing technology of preparing, the present invention is micro- using ultra-fine glass on material
Powder, refractive index, closest to polyurethane coating, not will cause the transmitance decline of coating, while can be largely in inorganic matter
Raising coating mechanical performance；On the other hand, the lesser water silica sol of partial size is preferable to the modified effect of aqueous polyurethane,
It is not easy to occur, the two combines but the pencil hardness of coating improves 2H.
2, the present invention grinds combination process using nano-machine in technique, by palladium powder, water silica sol and tree
Aliphatic radical body is closely linked by high speed machine grinding, can eliminate organic resin and inorganic reinforcement phase (glass to greatest extent
Powder and water silica sol) between interface void generate refraction, thus improve mechanical performance and guarantee transmitance.
Specific embodiment
The present invention will be further described below by way of example.The present invention is made further with reference to embodiments
It is bright, but the present invention is not limited only to these embodiments, and without departing from the spirit of the invention, made any improvement is all fallen within
Within protection scope of the present invention.
Example 1
Under agitation, the aqueous poly- ammonia of 60 mass parts is added in 20 mass parts glass powders and 20 mass parts water silica sols
30min is mixed in ester monomer, is added in nanometer sand mill (thinkling sound water chestnut nanometer sand mill LSM-1.4L type) and is ground 40min, obtains water
Property polyurethane coating.
Crosslinking agent is added in aqueous polyurethane coating by 5% mass ratio, is sprayed on production to be processed after mixing
Product surface；At room temperature after surface drying 30min, polyurethane coating is obtained through solidification in 7 days.
Wherein, water silica sol average grain diameter is 3nm, solid content 10%, the limited public affairs of Jinhua Green's functional coating research institute
Department.Glass powder is the low borosilicate glass powder of 8000 mesh, the production of Shenzhen Jin Hao Science and Technology Ltd..Urethane monomer is Anhui An great Hua
Safe new material Co., Ltd produces AH-1705 type polyurethane.Nanometer sand mill abrasive media is the zirconium oxide bead of diameter 1mm, Zhejiang
Jiang Jinkun grinding-material Co., Ltd.Organosilicon cross-linking agent can be selected in crosslinking agent, organic such as Shanghai You En Chemical Co., Ltd.
Silicon crosslinking agent UN-178；When being sprayed, coating thickness is controlled at 100 microns.
Example 2
Under agitation, the aqueous poly- ammonia of 62 mass parts is added in 18 mass parts glass powders and 20 mass parts water silica sols
30min is mixed in ester monomer, is added in nanometer sand mill (thinkling sound water chestnut nanometer sand mill LSM-1.4L type) and is ground 30min, obtains water
Property polyurethane coating.
Crosslinking agent is added in aqueous polyurethane coating by 5% mass ratio, is sprayed on production to be processed after mixing
Product surface；At room temperature after surface drying 30min, polyurethane coating is obtained through solidification in 7 days.
Wherein, water silica sol average grain diameter is 3nm, solid content 10%, the limited public affairs of Jinhua Green's functional coating research institute
Department.Wherein, glass powder is the low borosilicate glass powder of 8000 mesh, the production of Shenzhen Jin Hao Science and Technology Ltd..Wherein, urethane monomer is
Anhui Anda-Huatai New Material Co., Ltd. produces AH-1705 type polyurethane.Wherein, nanometer sand mill abrasive media is diameter
The zirconium oxide bead of 1mm, Zhejiang Jin Kun grinding-material Co., Ltd.Organosilicon cross-linking agent can be selected in crosslinking agent, such as Shanghai You Enhua
The organosilicon cross-linking agent UN-178 of work Co., Ltd；When being sprayed, coating thickness is controlled at 100 microns.
Example 3
Under agitation, the aqueous poly- ammonia of 65 mass parts is added in 15 mass parts glass powders and 20 mass parts water silica sols
30min is mixed in ester monomer, is added in nanometer sand mill (thinkling sound water chestnut nanometer sand mill LSM-1.4L type) and is ground 20min, obtains water
Property polyurethane coating.
Crosslinking agent is added in aqueous polyurethane coating by 5% mass ratio, is sprayed on production to be processed after mixing
Product surface；At room temperature after surface drying 30min, polyurethane coating is obtained through solidification in 7 days.
Wherein, water silica sol average grain diameter is 3nm, solid content 10%, the limited public affairs of Jinhua Green's functional coating research institute
Department's production.Glass powder is the low borosilicate glass powder of 8000 mesh, the production of Shenzhen Jin Hao Science and Technology Ltd..Urethane monomer is Anhui peace
Great Hua Tai new material Co., Ltd produces AH-1705 type polyurethane.Nanometer sand mill abrasive media is the zirconium oxide of diameter 1mm
Pearl, the production of Zhejiang Jin Kun grinding-material Co., Ltd.Organosilicon cross-linking agent can be selected in crosslinking agent, such as the outstanding limited public affairs of grace chemical industry in Shanghai
The organosilicon cross-linking agent UN-178 of department；When being sprayed, coating thickness is controlled at 100 microns.
Comparative example 1
Under agitation, the aqueous poly- ammonia of 60 mass parts is added in 20 mass parts glass powders and 20 mass parts water silica sols
30min is mixed in ester monomer, is added in nanometer sand mill (thinkling sound water chestnut nanometer sand mill LSM-1.4L type) and is ground 40min, obtains water
Property polyurethane coating.
Crosslinking agent is added in aqueous polyurethane coating by 5% mass ratio, is sprayed on production to be processed after mixing
Product surface；At room temperature after surface drying 30min, polyurethane coating is obtained through solidification in 7 days.
Wherein, water silica sol average grain diameter is 3nm, solid content 10%, the limited public affairs of Jinhua Green's functional coating research institute
Department.Glass powder is the low borosilicate glass powder of 5000 mesh, the production of Shenzhen Jin Hao Science and Technology Ltd..Urethane monomer is Anhui An great Hua
Safe new material Co., Ltd produces AH-1705 type polyurethane.Nanometer sand mill abrasive media is the zirconium oxide bead of diameter 1mm, Zhejiang
Jiang Jinkun grinding-material Co., Ltd.Organosilicon cross-linking agent can be selected in crosslinking agent, organic such as Shanghai You En Chemical Co., Ltd.
Silicon crosslinking agent UN-178；When being sprayed, coating thickness is controlled at 100 microns.
Comparative example 2
Under agitation, the aqueous poly- ammonia of 60 mass parts is added in 20 mass parts glass powders and 20 mass parts water silica sols
30min is mixed in ester monomer, is added in nanometer sand mill (thinkling sound water chestnut nanometer sand mill LSM-1.4L type) and is ground 40min, obtains water
Property polyurethane coating.
Crosslinking agent is added in aqueous polyurethane coating by 5% mass ratio, is sprayed on production to be processed after mixing
Product surface；At room temperature after surface drying 30min, polyurethane coating is obtained through solidification in 7 days.
Wherein, water silica sol average grain diameter is 50nm, solid content 10%, Akzo Nobel Chemical Company.
Glass powder is the low borosilicate glass powder of 8000 mesh, the production of Shenzhen Jin Hao Science and Technology Ltd..Urethane monomer is that big Hua Tai is pacified in Anhui
New material Co., Ltd produces AH-1705 type polyurethane.Nanometer sand mill abrasive media is the zirconium oxide bead of diameter 1mm, Zhejiang
Jin Kun grinding-material Co., Ltd.Organosilicon cross-linking agent can be selected in crosslinking agent, such as the organosilicon of Shanghai You En Chemical Co., Ltd.
Crosslinking agent UN-178；When being sprayed, coating thickness is controlled at 100 microns.
Comparative example 3
Under agitation, the aqueous poly- ammonia of 60 mass parts is added in 20 mass parts glass powders and 20 mass parts water silica sols
30min is mixed in ester monomer, is added in coating dispersion machine and is dispersed with stirring 40min under 1000rpm revolving speed, obtains aqueous polyurethane
Coating.
Crosslinking agent is added in aqueous polyurethane coating by 5% mass ratio, is sprayed on production to be processed after mixing
Product surface；At room temperature after surface drying 30min, polyurethane coating is obtained through solidification in 7 days.
Wherein, water silica sol average grain diameter is 3nm, solid content 10%, the limited public affairs of Jinhua Green's functional coating research institute
Department.Glass powder is the low borosilicate glass powder of 8000 mesh, the production of Shenzhen Jin Hao Science and Technology Ltd..Urethane monomer is Anhui An great Hua
Safe new material Co., Ltd produces AH-1705 type polyurethane.Coating dispersion machine (BGD1/750 type) is that Dongguan style is set up to coating
Standby Manufacturing Co., Ltd produces.Organosilicon cross-linking agent can be selected in crosslinking agent, as the organosilicon of Shanghai You En Chemical Co., Ltd. is handed over
Join agent UN-178；When being sprayed, coating thickness is controlled at 100 microns.
Comparative example 4
No added polyurethane coating.
Test and comparison method:
Polyurethane coating is prepared with embodiment 1-3 and comparative example 1-3, using following standard testing various aspects of performance:
1) coating hardness test is tested using standard GB/T-T 26704-2011.
2) coating transmitance is using visible spectrophotometer test (380~780nm wavelength), rear Calculation Estimation transmitance.
Test data in each embodiment is shown in Table 1.
From table 1 it follows that hard by the coating pencil of compound sample coating (serial number 1 to the 3) preparation of mechanical lapping
Degree and transmitance are very high, and respectively in 2~3H and 83~85%, the not ground comparative example 3 for being changed to stirring, then hardness is not mentioned
Height, but compared with comparative example 1, the increase of glass powder particles diameter can reduce coating transmitance.Comparative example 2 is to increase to aoxidize aqueous silicon
Sol particle partial size equally reduces coating transmitance.And it is not added with the blank sample (comparative example 4) of hardening agent then pencil hardness is very
Low (HB).
Finally, it should also be noted that the above enumerated are only specific embodiments of the present invention son.Obviously, the present invention is not
It is limited to above embodiment, acceptable there are many deformations.Those skilled in the art can be straight from present disclosure
All deformations for connecing export or associating, are considered as protection scope of the present invention.
Claims (7)
1. a kind of preparation method of high-hard, transparent polyurethane coating, which comprises the following steps:
(1) under agitation, 15~20 mass parts glass powders, 20 mass parts water silica sols and 60~65 mass parts are aqueous
Urethane monomer mixing 30min；Then mixture is gone into 20~40min of grinding in nanometer sand mill, obtains aqueous polyurethane
Coating；
(2) crosslinking agent is added in aqueous polyurethane coating by 5% mass ratio, is sprayed on processed product after mixing
Surface；At room temperature after surface drying 30min, polyurethane coating is obtained through solidification in 7 days.
2. according to the method described in claim 1, it is characterized in that the average grain diameter in, the water silica sol is 3nm, admittedly contain
Amount 10%.
3. according to the method described in claim 1, it is characterized in that the glass powder is the low borosilicate glass powder of 8000 purposes.
4. according to the method described in claim 1, it is characterized in that the abrasive media in the nanometer sand mill is diameter
The zirconium oxide bead of 1mm.
5. according to the method described in claim 1, it is characterized in that the nanometer sand mill is thinkling sound's water chestnut nanometer sand mill LSM-
1.4L type product.
6. according to the method described in claim 1, it is characterized in that the crosslinking agent is organosilicon cross-linking agent.
7. according to the method described in claim 1, it is characterized in that when being sprayed in the step (2), control spraying is thick
Degree is at 100 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811555465.8A CN109593453A (en) | 2018-12-18 | 2018-12-18 | A kind of preparation method of high-hard, transparent polyurethane coating |
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| CN201811555465.8A CN109593453A (en) | 2018-12-18 | 2018-12-18 | A kind of preparation method of high-hard, transparent polyurethane coating |
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| CN109593453A true CN109593453A (en) | 2019-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019502A (en) * | 2019-12-06 | 2020-04-17 | 浙江工业大学之江学院 | Preparation method of polyurethane coating, product and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231209A (en) * | 2014-09-26 | 2014-12-24 | 江苏日出化工有限公司 | Preparation method for high-hardness waterborne polyurethane dispersion |
| CN107418438A (en) * | 2017-09-07 | 2017-12-01 | 苏州市金能高新材料有限公司 | Aqueous wood wax oil and its preparation method and application |
| CN107880716A (en) * | 2017-11-22 | 2018-04-06 | 浙江加州国际纳米技术研究院台州分院 | A kind of nanometer strengthens water-based anticorrosive paint |
-
2018
- 2018-12-18 CN CN201811555465.8A patent/CN109593453A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231209A (en) * | 2014-09-26 | 2014-12-24 | 江苏日出化工有限公司 | Preparation method for high-hardness waterborne polyurethane dispersion |
| CN107418438A (en) * | 2017-09-07 | 2017-12-01 | 苏州市金能高新材料有限公司 | Aqueous wood wax oil and its preparation method and application |
| CN107880716A (en) * | 2017-11-22 | 2018-04-06 | 浙江加州国际纳米技术研究院台州分院 | A kind of nanometer strengthens water-based anticorrosive paint |
Non-Patent Citations (1)
| Title |
|---|
| AABB44556666: "《百度百科》", 25 July 2016, 百度 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019502A (en) * | 2019-12-06 | 2020-04-17 | 浙江工业大学之江学院 | Preparation method of polyurethane coating, product and application thereof |
| CN111019502B (en) * | 2019-12-06 | 2021-05-25 | 浙江工业大学之江学院 | Preparation method of polyurethane coating, product and application thereof |
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Application publication date: 20190409 |
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