CN106893466A - A kind of low temperature resistant wear-resistant polyurethane coating and preparation method thereof - Google Patents
A kind of low temperature resistant wear-resistant polyurethane coating and preparation method thereof Download PDFInfo
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- CN106893466A CN106893466A CN201710107796.4A CN201710107796A CN106893466A CN 106893466 A CN106893466 A CN 106893466A CN 201710107796 A CN201710107796 A CN 201710107796A CN 106893466 A CN106893466 A CN 106893466A
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- Prior art keywords
- low temperature
- temperature resistant
- polyurethane coating
- resistant
- wear
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Classifications
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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
-
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- C09D7/65—Additives macromolecular
-
- 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
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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 a kind of low temperature resistant wear-resistant polyurethane coating and preparation method thereof, by weight, the low temperature resistant wear-resistant polyurethane coating composition includes 45~60 parts of polyurethane matrix resins, 0.5~6 part of low temperature resistant PEPA, 3~20 parts of micro-powder, 5~12 parts of curing agent, 30~50 parts of solvents, 0.5~3 part of defoamer using surface modifying agent.Gained coating of the invention is retaining that former polyurethane coating adhesive force is strong, under normal temperature the features such as excellent in mechanical performance, good stability on the basis of, the addition of low temperature resistant PEPA causes polyurethane coating low temperature performance excellent, micro-powder causes that coating hardness is improved, so that with excellent anti-wear performance.Coating of the invention can be used for the protection at low ambient temperatures of the facilities such as aircraft, wind electricity blade.
Description
Technical field
The invention belongs to polymeric material field, and in particular to a kind of low temperature performance excellent, wear-resisting modified polyurethane are applied
Material and preparation method thereof.
Background technology
Polyurethane resin is one of main species of paint binder at this stage, and polyurethane has soft and hard segments block copolymer
Structure, this unique structure causes that polyurethane product has outstanding comprehensive mechanical property：It is good mechanical property, ageing-resistant, resistance to
Oil, hardness adjustable extent are big, and these excellent performances are that other many materials are incomparable.Polyurethane coating is generally used
More than zero degrees celsius, but for northern China some areas, in zero degree even zubzero temperature, this will for winter temperature for temperature
Seeking polyurethane coating has low-temperature flexibility performance higher.Addition special polyols modified polyurethane neither influences former polyurethane knot
Structure, while can make the former coating have preferable resistance to low temperature, Chinese patent CN101033368A uses polyethers there is provided one kind
Polyalcohol and toluene dicyanate synthesize the method for ultra-low temperature polyurethane coating, polyurethane resistance to low temperature preferably, but cost compared with
Height, mechanical performance is poor, limits and apply under its low temperature environment.
The polyurethane system filled using inorganic particles, obtains certain toughness, intensity and hardness after hardening, and China is specially
Sharp CN 105238253A disclose a kind of chlorinated paraffin, iron oxide red, nitrocotton, CNT, modified grammite, flakey
Aluminium flake, mica powder and graphite powder modified abrasion resistant polyurethane coating, but CNT is relatively costly, and modified filler species mistake
Many, microparticle material size is too small, concentrates dispersion to be likely to occur problem in former polyurethane, and this causes coating stress concentration, instead
And the reduction of coating mechanical property is caused, influence coating is used, therefore, a kind of one-component of exploitation is modified and dispersiveness is preferably resistance to low
Warm wear-resistant polyurethane coating is imperative.
The content of the invention
It is an object of the invention to provide a kind of low temperature resistant wear-resistant polyurethane coating, it has excellent low temperature resistant wearability
Energy.
To reach above-mentioned purpose, technical scheme is as follows：
The low temperature resistant wear-resistant polyurethane coating that the present invention is provided, by weight, wherein every composition includes 45~60 parts
Polyurethane matrix resin, 0.5~6 part of low temperature resistant PEPA, 3~20 parts by using surface modifying agent so as to introduce
The micro-powder of organo-functional group, 5~12 parts of curing agent, 30~50 parts of solvents, 0.5~3 part of defoamer.
Preferably, the polyurethane matrix resin be poly- SA-polybutadiene binary alcohol esters polyalcohol, polyethylene glycol-
1,4 butanediol adipate ester polyalcohols and 2- methyl isophthalic acids, the one kind in 5- pentanediols.
Preferably, the low temperature resistant PEPA is selected from PEPA BY3001, BY3011, BY3022
Kind.
Preferably, the surface modifier is lauric acid imidazoline, acetic acid n-butanol, dibutyl adipate and curing 4
One kind in aminobenzene.
Preferably, the micro-powder be a diameter of 13~18 μm ball aluminum powder, a diameter of 5~8 μm of flake aluminum,
One kind in a diameter of 10~15 μm of spherical copper powder and a diameter of 8~12 μm of flake copper.
Preferably, the curing agent is diisocyanate.
It is further preferred that the diisocyanate is that 4,4- methyl diphenylene diisocyanates, methylcyclohexyl two are different
One kind in cyanate and XDI.
Preferably, the solvent is one or more in arene, alcohols and lipid organic solvent.
It is further preferred that the arene organic solvent is dimethylbenzene；The alcohol organic solvent be n-butanol and
One or two in isopropanol；The lipid organic solvent methyl acetate or propyl acetate alcohol.
A kind of preparation method of above-mentioned low temperature resistant wear-resistant polyurethane coating, its preparation method comprises the following steps：
1) by polyurethane matrix resin, low temperature resistant PEPA, the micro-powder using surface modifying agent, molten
Agent, defoamer obtain mixture according to aforementioned proportion is well mixed；
2) curing agent of aforementioned proportion is added in mixture, it is well mixed to obtain final product low temperature resistant wear-resistant polyurethane coating.
Specifically, the preparation method of the above-mentioned low temperature resistant wear-resistant polyurethane coating that the present invention is provided, comprises the following steps：
Micro-powder is first soaked into 5min in the hydrochloric acid solution of 0.01mol/L, is then washed with distilled water and acetone, room temperature
After drying, 20min is soaked in the ethanol solution of the surface conditioning agent of 0.001mol/L, while stirring, removal is dried, passed through
The micro-powder of surface conditioning agent treatment；
By each component according to 45~60 parts of polyurethane matrix resins of mass ratio, 0.5~6 part of low temperature resistant PEPA, 3
~20 parts introduce modified micro-powder, 30~50 parts of solvents, 0.5~3 part of defoamer of organo-functional group by surface modifier
Mixing, stirring 20min is well mixed each component.
5~12 parts of curing agent are added in the mixture for stirring, continue to stir, spraying or roller coating are in material list
Face, obtains low temperature resistant abrasion resistant polyurethane coating.
The present invention have the advantage that including：
After using the modified original polyurethane of low temperature resistant PEPA, influence is not produced on former polyurethane structural, retain former poly-
The cryogenic property of coating is lifted while urethane excellent properties.
Active end group is contained by the micron metal powder surface after surface modifier treatment so that powder and polyurethane it
Between form chemical coupling effect, interface cohesion is even closer, is prevented effectively from powder reuniting, and the addition of powder causes coating low temperature properties
Can be significantly improved with anti-wear performance.
In a word, present invention gained coating retaining that former polyurethane coating adhesive force is strong, under normal temperature excellent in mechanical performance, stabilization
On the basis of the features such as property is good, the addition of low temperature resistant PEPA causes polyurethane coating low temperature performance excellent, micro-powder
So that coating hardness is improved, so that with excellent anti-wear performance.Coating prepared by coating of the present invention not only has good
Cryogenic property, anti-wear performance, and also retains good adhesive force and stability that coating has in itself.This coating energy
For the nonmetallic materials such as aircraft, wind electricity blade provide the protection under low temperature environment.
Brief description of the drawings
Fig. 1 is the surface Scanning Electron microscope figure of the polyurethane coating of embodiment 1.
Specific embodiment
With the drawings and specific embodiments, the present invention is further detailed explanation below, but it is not intended to limit the present invention
Implementation.
Embodiment 1
By the poly- SAs of 50g-polybutadiene binary alcohol esters polyalcohol, the low temperature resistant PEPA BY3001 of 2g, 17g is through the moon
The ball aluminum powder of a diameter of 13~18 μm of cinnamic acid imidazoline treatment, 30g n-butanols, 0.5g defoamers are well mixed, and weigh 10g
4,4- methyl diphenylene diisocyanate curing agent are added in mixture, well mixed to obtain polyurethane coating.
Gained polyurethane coating is applied to material surface, ambient temperature curing 24 hours, modified polyurethane coating is obtained, its table
Surface scan electron microscope picture is as shown in figure 1, it will be seen from figure 1 that through the ball aluminum powder of lauric acid imidazoline treatment in figure layer
In be uniformly dispersed, there is not obvious phenomenon of phase separation.
Embodiment 2
By the poly- SAs of 45g-polybutadiene binary alcohol esters polyalcohol, 0.5g low temperature resistant PEPA BY3001,10g warps
The flake aluminum of a diameter of 5~8 μm of acetic acid n-butanol treatment, (dimethylbenzene and methyl acetate are with 2 for 50g double solvents:1 ratio
Mixing), 1g defoamers are well mixed, and weigh in 5g Methylcyclohexyl diisocyanates curing agent addition mixture, are well mixed
Obtain polyurethane coating.
By gained polyurethane coating, material surface is applied to, ambient temperature curing 24 hours, obtains modified polyurethane coating.
Embodiment 3
By 60g 2- methyl isophthalic acids, the one kind in 5- pentanediols, the low temperature resistant PEPA BY3022 of 6g, 20g is through adipic acid
The spherical copper powder of a diameter of 10~15 μm of dibutyl ester treatment, (isopropanol and n-butanol are with 1 for 35g double solvents:2 ratios are mixed
Close), 1.5g defoamers are well mixed, and weigh in 10.8g XDIs curing agent addition mixture, and mixing is equal
It is even to obtain polyurethane coating.
By gained polyurethane coating, material surface is applied to, ambient temperature curing 24 hours, obtains modified polyurethane coating.
Embodiment 4
By the poly- SAs of 55g-polybutadiene binary alcohol esters polyalcohol, the low temperature resistant PEPA BY3011 of 3g, 3g is through two
Vulcanize a diameter of 8~12 μm of the treatment of 4 aminobenzenes of flake copper, (dimethylbenzene and propyl acetate alcohol are with 5 for 40g double solvents:1
Ratio mixes), 3g defoamers are well mixed, and weigh in 12g Methylcyclohexyl diisocyanates curing agent addition mixture, mix
Uniformly obtain polyurethane coating.
By gained polyurethane coating, material surface is applied to, ambient temperature curing 24 hours, obtains modified polyurethane coating.
It is attached according to standard GB/T 5210-2006 test materials according to standard GB/T1731-1993 test material pliabilities
Put forth effort, material tensile property is measured according to standard ISO 523-2003, according to standard GB/T 6739-2006 test material hardness.
Coating adhesion, low temperature (- 30 DEG C) pliability, tensile property and the hardness that each embodiment is obtained are shown in Table 1；
The properties of coating contrast obtained in the embodiment of table 1
As it can be seen from table 1 the present invention gained coating at low temperature flexility it is excellent, coating mechanical property preferably, change
Property after hardness lifting.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although ginseng
The present invention is described in detail according to embodiment, it will be apparent to an ordinarily skilled person in the art that to technical side of the invention
Case is modified or equivalent, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right in the middle of.
Claims (10)
1. a kind of low temperature resistant wear-resistant polyurethane coating, it is characterised in that by weight, the low temperature resistant wear-resistant polyurethane coating
Composition include 45~60 parts of polyurethane matrix resins, 0.5~6 part of low temperature resistant PEPA, 3~20 parts use surface modifier
Modified micro-powder, 5~12 parts of curing agent, 30~50 parts of solvents, 0.5~3 part of defoamer.
2. low temperature resistant wear-resistant polyurethane coating according to claim 1, it is characterised in that the polyurethane matrix resin is
Poly- SA-polybutadiene binary alcohol esters polyalcohol, the butanediol adipate ester polyalcohol of polyethylene glycol -1,4 and 2- methyl isophthalic acids, 5-
One kind in pentanediol.
3. low temperature resistant wear-resistant polyurethane coating according to claim 1, it is characterised in that the low temperature resistant PEPA
Selected from the one kind in PEPA BY3001, BY3011, BY3022.
4. low temperature resistant wear-resistant polyurethane coating according to claim 1, it is characterised in that the surface modifier is bay
One kind in imidazole acid quinoline, acetic acid n-butanol, dibutyl adipate and the aminobenzene of curing 4.
5. low temperature resistant wear-resistant polyurethane coating according to claim 1, it is characterised in that the micro-powder is a diameter of
13~18 μm of ball aluminum powder, a diameter of 5~8 μm of flake aluminum, a diameter of 10~15 μm of spherical copper powder and a diameter of 8~
One kind in 12 μm of flake copper.
6. low temperature resistant wear-resistant polyurethane coating according to claim 1, it is characterised in that the curing agent is two isocyanic acids
Ester.
7. low temperature resistant wear-resistant polyurethane coating according to claim 6, it is characterised in that the diisocyanate is 4,4-
One kind in methyl diphenylene diisocyanate, Methylcyclohexyl diisocyanate and XDI.
8. low temperature resistant wear-resistant polyurethane coating according to claim 1, it is characterised in that the solvent be arene,
One or more in alcohols and lipid organic solvent.
9. low temperature resistant wear-resistant polyurethane coating according to claim 8, it is characterised in that the arene organic solvent
It is dimethylbenzene；The alcohol organic solvent be n-butanol and isopropanol in one or two；The lipid organic solvent acetic acid
Methyl esters or propyl acetate alcohol.
10. a kind of preparation method of the low temperature resistant wear-resistant polyurethane coating described in any one of claim 1-9, its preparation method bag
Include following steps：
1) by polyurethane matrix resin, low temperature resistant PEPA, the micro-powder using surface modifying agent, solvent, disappear
Infusion obtains mixture according to ratio described in claim 1 is well mixed；
2) curing agent of ratio described in claim 1 is added in mixture, it is well mixed to obtain final product low temperature resistant wear-resisting poly- ammonia
Ester paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107796.4A CN106893466B (en) | 2017-02-27 | 2017-02-27 | A kind of low temperature resistant wear-resistant polyurethane coating and preparation method thereof |
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| CN201710107796.4A CN106893466B (en) | 2017-02-27 | 2017-02-27 | A kind of low temperature resistant wear-resistant polyurethane coating and preparation method thereof |
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| CN106893466A true CN106893466A (en) | 2017-06-27 |
| CN106893466B CN106893466B (en) | 2019-03-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111391190A (en) * | 2020-03-30 | 2020-07-10 | 大连日瑞铸模有限公司 | Composite resin casting mold and manufacturing method thereof |
| CN113088114A (en) * | 2021-04-08 | 2021-07-09 | 广东邦固化学科技有限公司 | Wear-resistant polyurethane coating and preparation method thereof |
| CN113502113A (en) * | 2021-07-24 | 2021-10-15 | 宁波恒大防护用品有限公司 | PU wear-resistant coating, preparation method thereof and protective gloves |
| CN113698562A (en) * | 2021-07-21 | 2021-11-26 | 陈鹏云 | Solvent-free synthetic material applying ice and snow movement and preparation method thereof |
| CN113817380A (en) * | 2021-09-29 | 2021-12-21 | 惠州市惠阳区嘉泰涂料有限公司 | Low-temperature-resistant water polyurethane modified silicone-acrylic anticorrosive paint and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570907A (en) * | 2012-07-19 | 2014-02-12 | 旭川化学（昆山）有限公司 | Low temperature resistance polyurethane sole material |
-
2017
- 2017-02-27 CN CN201710107796.4A patent/CN106893466B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570907A (en) * | 2012-07-19 | 2014-02-12 | 旭川化学（昆山）有限公司 | Low temperature resistance polyurethane sole material |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111391190A (en) * | 2020-03-30 | 2020-07-10 | 大连日瑞铸模有限公司 | Composite resin casting mold and manufacturing method thereof |
| CN111391190B (en) * | 2020-03-30 | 2022-02-15 | 大连日瑞铸模有限公司 | Composite resin casting mold and manufacturing method thereof |
| CN113088114A (en) * | 2021-04-08 | 2021-07-09 | 广东邦固化学科技有限公司 | Wear-resistant polyurethane coating and preparation method thereof |
| CN113698562A (en) * | 2021-07-21 | 2021-11-26 | 陈鹏云 | Solvent-free synthetic material applying ice and snow movement and preparation method thereof |
| CN113698562B (en) * | 2021-07-21 | 2022-09-09 | 海兴红旗体育器材有限公司 | Solvent-free synthetic material applying ice and snow movement and preparation method thereof |
| CN113502113A (en) * | 2021-07-24 | 2021-10-15 | 宁波恒大防护用品有限公司 | PU wear-resistant coating, preparation method thereof and protective gloves |
| CN113817380A (en) * | 2021-09-29 | 2021-12-21 | 惠州市惠阳区嘉泰涂料有限公司 | Low-temperature-resistant water polyurethane modified silicone-acrylic anticorrosive paint and preparation method thereof |
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| CN106893466B (en) | 2019-03-29 |
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