CN109486397A - Coatings and preparation method and application for flexible macromolecule substrate surface - Google Patents
Coatings and preparation method and application for flexible macromolecule substrate surface Download PDFInfo
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- CN109486397A CN109486397A CN201710820811.XA CN201710820811A CN109486397A CN 109486397 A CN109486397 A CN 109486397A CN 201710820811 A CN201710820811 A CN 201710820811A CN 109486397 A CN109486397 A CN 109486397A
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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
- C09D175/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/06—Polyurethanes from polyesters
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses the coatings and preparation method and application for flexible macromolecule substrate surface.The composition of raw materials of the coatings includes following components in parts by weight: 10 ~ 25 parts of flexible polyester polyalcohol, 4 ~ 15 parts of stiff polyesters polyalcohol, 5 ~ 16 parts of curing agent, 0.1 ~ 0.3 part of catalyst, 0.2 ~ 1 part and 50 ~ 70 parts of solvent of auxiliary agent；The curing agent is the tripolymer of diisocyanate monomer.Coatings of the invention are using the tripolymer of diisocyanate as curing agent, it is ensured that higher crosslink density, so that consistency and smooth surface needed for paint film are assigned, to realize solvent resistance and high saturating appearance.Meanwhile the polyester polyol different by compounding pliability, while realizing high crosslink density, the enough flexibilities of paint film are assigned, after the flexibility without destroying fexible film itself.
Description
Technical field
The present invention relates to chemical industry, field of film preparation, the more particularly, to coatings and system on flexible parent metal surface
Preparation Method and application.
Background technique
Macromolecule fexible film, such as TPU membrane, while with high optics permeability, have it is superior can deformation behavior, because
This is widely used in pad pasting field.However, the surface of macromolecule membrane is easily stain and not scratch-resistant while not solvent resistant,
Still there is biggish performance boost space.
Wish that exploitation can be coated on flexible macromolecule substrate surface, cross-linked coating with self-repair function, has
Certain crosslink density can prevent the infiltration of solvent, assign polymer base material solvent resistance and stain resistance, and can be automatic
Or under given conditions repair external force caused by scratch and scrape defect, can ideally play protection macromolecule membrane ontology and
The effect on its surface.In addition, fexible film surface is more coarse, glossiness is poor, by the method that is directly coated on its surface
Introducing one layer of smooth varnish can be improved the appearance of substrate.
Summary of the invention
The present invention relates to a kind of coatings for flexible parent metal surface, composition of raw materials includes following weight parts
Component: 10 ~ 25 parts of flexible polyester polyalcohol, 4 ~ 15 parts of stiff polyesters polyalcohol, 5 ~ 16 parts of curing agent, 0.1 ~ 0.3 part of catalyst,
0.2 ~ 1 part and 50 ~ 70 parts of solvent of auxiliary agent；The curing agent is the tripolymer of diisocyanate monomer.
The composition of raw materials of coatings of the present invention is made of following components in parts by weight: flexible polyester polyalcohol
10 ~ 25 parts, 4 ~ 15 parts of stiff polyesters polyalcohol, 5 ~ 16 parts of curing agent, 0.1 ~ 0.3 part of catalyst, 0.2 ~ 1 part of auxiliary agent and solvent 50
~ 70 parts；The curing agent is the tripolymer of diisocyanate monomer.
Coatings of the present invention are using the tripolymer of diisocyanate as curing agent, it is ensured that higher
Crosslink density, so that consistency and smooth surface needed for paint film are assigned, to realize solvent resistance and high saturating appearance.Meanwhile it is logical
Cross the different polyester polyol of compounding pliability, while realizing high crosslink density, assign the enough flexibilities of paint film, after without
Destroy the flexibility of fexible film itself.
The polyester polyol refers to containing ester group on molecular backbone, and the macromolecular alcohol of hydroxyl is contained on end group
Class compound.Wherein, glass transition temperature (Tg) less than or equal to 0 DEG C of polyester polyol it is defined as flexibility in the present invention
The RS861 of 9,000 Chemical Industry Science Co., Ltd of Dongguan City, Shanghai general section chemical industry can be used in polyester polyol, flexible polyester polyalcohol
Eterol5590 the and Covestro(Cohan wound of Co., Ltd SK9330, the Eterol5103 of Changxing chemistry, Changxing chemistry) it is public
One of Desmophen 1200 of department or a variety of.TgIt is poly- that polyester polyol greater than 0 DEG C is defined as rigidity in the present invention
Uralac SN822 S1-70 of Royal DSM company, Royal DSM company can be used in ester polyol, stiff polyesters polyalcohol
In the Joncryl 592 of Uralac SN830 S2-60ND, the Joncryl 942 of BASF AG and BASF AG it is a kind of or
It is a variety of.
In order to assign flexible parent metal it is solvent-proof simultaneously, retain the flexibility of fexible film, need simultaneously using flexibility
With stiff polyesters polyalcohol.
The curing agent uses the tripolymer of diisocyanate monomer.The diisocyanate monomer includes that six is sub-
Methyl diisocyanate, '-diphenylmethane diisocyanate, toluene di-isocyanate(TDI), isophorone diisocyanate and 4,4- bis-
Isocyanates dicyclohexyl methyl hydride.The tripolymer refers to the tripolymer of above-mentioned monomer, such as hexamethylene diisocyanate
Tripolymer, '-diphenylmethane diisocyanate tripolymer, toluene diisocyanate trimer, isophorone diisocyanate trimerization
Body, 4,4- hexylmethane tripolymers, and (or), two kinds and two or more different diisocyanate monomers
Tripolymer.Currently preferred curing agent is created using Covestro(Cohan) company Desmodur N3390BA.
- the NCO of the total-OH and curing agent of flexible polyester polyalcohol and stiff polyesters polyalcohol in the coatings
Molar ratio be preferably 1:1.0 ~ 1:1.2, be more preferably 1:1.1 ~ 1:1.2.
The catalyst is preferably organotin catalysts, such as dibutyl tin dilaurate, stannous octoate, dibutyl two
One of tin acetate and two (dodecyl) dibutyl tins are a variety of.Currently preferred catalyst uses AIR
PRODUCT company Dabco T-12.
The auxiliary agent is preferably one of defoaming agent, levelling agent or a variety of.Wherein, the defoaming agent can be used
BYK(Bi Ke chemistry) BYK-051, BYK-052 of company, BYK-053, BYK-055, BYK-065, BYK-071, BYK-141,
One of BYK-180 or a variety of.
BYK(Bi Ke chemistry can be used in the levelling agent) BYK-358N, BYK-353, BYK-354, BYK- of company
390, one of BYK-392, BYK310, BYK-331, BYK-333, BYK-344 or a variety of.
Wherein, the preferred solvents are toluene, dimethylbenzene, ethyl acetate, butyl acetate, ethyl alcohol, isopropanol, fourth
One of alcohol, methyl iso-butyl ketone (MIBK), butanone, ethylene glycol ethyl ether and propylene-glycol ethyl ether are a variety of.
The present invention also provides a kind of preparation methods of coatings for flexible parent metal surface, specifically describe such as
Under:
Above-mentioned raw materials formula is uniformly mixed, then flexible parent metal surface is directly coated at using roller coating technology, by 1 ~ 10 minute,
It can wind compound after 90 ~ 120 DEG C of bakings, continue thereafter under the conditions of 40 ~ 80 DEG C baking ageing and contained for 12 ~ 96 hours
The fexible film of coatings.
Common process is the release film surface that coating is coated on to low-surface-energy, then passes through heat pressing process for itself and target base
Material is compound.It the use of this technique in the drawbacks of flexible parent metal surface depositing coating is since flexible parent metal is general thermo-labile and compares
It is easy to happen deformation, hot pressing is also easy to produce macroscopic defect, such as forms orange peel, the surface roughness of film is caused to increase
Greatly, to influence the appearance of film.And the present invention uses direct coating process, can be crosslinked by the Self-leveling property of liquid
Before reaction occurs, the liquid film of surfacing is formed in flexible parent metal surface, to still maintain after curing reaction smooth
Higher optical property is realized on surface.
It is coated with the flexible parent metal of coatings, elongation at break is still greater than 100%, can be with organic solvent-resistant, and have
Higher gloss.
Flexible parent metal of the present invention refers to the macromolecule membrane that fracture rate elongation is greater than 200%, such as thermoplastic poly ammonia
Ester (TPU) film.
The present invention also provides above-mentioned coatings on flexible parent metal surface as the application of coating.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The reagents and materials used in the present invention are commercially available.
Positive effect obtained by the present invention: coatings of the invention are made using the tripolymer of diisocyanate
For curing agent, it is ensured that higher crosslink density, so that consistency and smooth surface needed for paint film are assigned, it is resistance to molten to realize
Agent and high saturating appearance.Meanwhile the polyester polyol different by compounding pliability, while realizing high crosslink density, assign
The enough flexibilities of paint film, after the flexibility without destroying fexible film itself.By the method that is directly coated in flexible parent metal
Surface coats to form the fexible film with coatings, and not only surface is smooth, but also has solvent resistance and high saturating appearance
The characteristics of.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or according to quotient
The selection of product specification.
Solvent resistance test method: 1ml dimethylbenzene is sprayed onto detected materials surface, is dried after 30 seconds with cleansing tissue.If material
Expect appearance without significant change (such as swelling set, coating shedding), then it is assumed that solvent resistance test is qualified.
Selfreparing test method: with straight filament wire brush after film surface brushes out brush mark, can observation brush mark certainly at 1 hour
It is dynamic to disappear or disappear in the case where heat source (such as hot water poured).If can disappear, then it is assumed that material has self-repair function.
Reflecting feel appraisal procedure: being coated with the flexible macromolecule substrate adhesions of coatings in black metal sheet,
Respectively from a front surface and a side surface (45 degree) material surface gloss superiority and inferiority.Surface is smooth reflective, and inverted image is clearly sharp keen, then it is assumed that
Reflecting feel is excellent, on the contrary then think that reflecting feel is poor.
Stain resistant appraisal procedure: it is made marks with capable 6881 black permanent pen in coating surface, after drying to be marked
After placing 1 day, is directly wiped with lens wiping paper or dip in full absolute alcohol wiping with lens wiping paper, observe the removing situation of label.Such as
Fruit label can be completely wiped off, and be left no trace, then it is assumed that stain resistance is excellent.If marked not erasable, then it is assumed that resistance to
Contamination is poor.If label can be wiped, but have a small amount of trace, then it is assumed that stain resistant is good.
Elongation at break test method: it is 5 centimetres (length) that detected materials, which are cut into specification, and the batten of 2 centimetres (width) takes
Intermediate 2 centimetre lengths mark, and firmly stretch to both sides until cracked, measure the length for marking part at this time
Then elongation at break is calculated in L1 according to the following formula.
Elongation at break (%)=(L1-2)/2
Resin A is flexible polyester polyalcohol in following list 1, and the trade mark is the RS861 of 9,000 Chemical Industry Science Co., Ltd of Dongguan City,
Resin B is flexible polyester polyalcohol, and the trade mark is Shanghai Shuai Ke Chemical Co., Ltd. SK9330, and resin C is stiff polyesters polyalcohol,
The trade mark is DSM(Royal DSM) company Uralac SN822 S1-70, curing agent is Covestro company Desmodur N3390BA,
Catalyst is AIR PRODUCT company Dabco T-12, and defoaming agent, levelling agent are respectively BYK company BYK-051, BYK-358N,
Solvent uses dimethylbenzene.The above raw material is commercially available.
1 coatings of table are formulated summary table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Resin A | 10.50 | 10.50 | 10.50 | 10.50 | 10.00 |
| Resin B | 3.50 | 5.50 | 7.50 | 10.50 | 15.00 |
| Resin C | 4.70 | 8.00 | 9.50 | 12.00 | 15.00 |
| Curing agent | 6.59 | 8.95 | 11.20 | 12.24 | 16.20 |
| Catalyst | 0.10 | 0.30 | 0.15 | 0.20 | 0.30 |
| Defoaming agent | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| Levelling agent | 0.30 | 0.30 | 0.50 | 0.70 | 0.90 |
| Solvent | 70.00 | 55.40 | 51.85 | 56.10 | 53.90 |
| It amounts to | 95.71 | 88.97 | 91.22 | 102.26 | 111.32 |
After mixing by above-mentioned formula, TPU membrane surface is coated on by roller coating, passing through temperature range in 1 ~ 5 minute is 90
DEG C to after 120 DEG C of drying tunnel, wind it is compound after, be placed in 80 DEG C of baking ovens and continue baking ageing 24 hours.
The effect data of above-described embodiment is as shown in table 2 below.
2 performance comparison of table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| OH/NCO measures ratio | 1:1.0 | 1:1.1 | 1:1.1 | 1:1.1 | 1:1.2 |
| Elongation at break | 140% | 110% | 110% | 130% | 120% |
| Solvent resistant | It is qualified | It is qualified | It is qualified | It is qualified | It is qualified |
| Self-healing properties | It is qualified | It is qualified | It is qualified | It is qualified | It is qualified |
| Reflecting feel | It is excellent | It is excellent | It is excellent | It is excellent | It is excellent |
| Stain resistant | It is excellent | It is excellent | It is excellent | It is excellent | It is excellent |
Resin D is flexible polyester polyalcohol in following list 3, and the trade mark is the Eterol5103 of Changxing chemistry, and resin E is flexible poly-
Ester polyol, the trade mark be Covestro(Cohan wound) company Desmophen 1200, resin F be stiff polyesters polyalcohol, board
Number be BASF AG Joncryl 942, curing agent be Covestro company Desmodur N3390BA, catalyst AIR
PRODUCT company Dabco T-12, defoaming agent, levelling agent are respectively BYK company BYK-065, BYK-392, and solvent uses acetic acid
Ethyl ester.The above raw material is commercially available.
3 coatings of table are formulated summary table
| Embodiment 6 | Embodiment 7 | Embodiment 8 | |
| Resin D | 10.50 | 10.50 | 10.00 |
| Resin E | 5.50 | 10.50 | 15.00 |
| Resin F | 8.00 | 12.00 | 15.00 |
| Curing agent | 8.95 | 12.24 | 16.20 |
| Catalyst | 0.30 | 0.20 | 0.30 |
| Defoaming agent | 0.02 | 0.02 | 0.02 |
| Levelling agent | 0.30 | 0.70 | 0.90 |
| Solvent | 55.40 | 56.10 | 53.90 |
| It amounts to | 88.97 | 102.26 | 111.32 |
After mixing by above-mentioned formula, TPU membrane surface is coated on by roller coating, passing through temperature range in 1 ~ 5 minute is 90
DEG C to after 120 DEG C of drying tunnel, wind it is compound after, be placed in 60 DEG C of baking ovens and continue baking ageing 48 hours.
The effect data of above-described embodiment is as shown in table 4 below.
4 performance comparison of table
| Embodiment 6 | Embodiment 7 | Embodiment 8 | |
| OH/NCO measures ratio | 1:1.1 | 1:1.1 | 1:1.1 |
| Elongation at break | 110% | 110% | 130% |
| Solvent resistant | It is qualified | It is qualified | It is qualified |
| Self-healing properties | It is qualified | It is qualified | It is qualified |
| Reflecting feel | It is excellent | It is excellent | It is excellent |
| Stain resistant | It is excellent | It is excellent | It is excellent |
Claims (10)
1. a kind of coatings, composition of raw materials includes following components in parts by weight:
10 ~ 25 parts of flexible polyester polyalcohol, 4 ~ 15 parts of stiff polyesters polyalcohol, 5 ~ 16 parts of curing agent, 0.1 ~ 0.3 part of catalyst,
0.2 ~ 1 part and 50 ~ 70 parts of solvent of auxiliary agent；The curing agent is the tripolymer of diisocyanate monomer.
2. coatings as described in claim 1, which is characterized in that the composition of raw materials of the coatings is by following
The group of parts by weight is grouped as: 10 ~ 25 parts of flexible polyester polyalcohol, 4 ~ 15 parts of stiff polyesters polyalcohol, 5 ~ 16 parts of curing agent, catalysis
0.1 ~ 0.3 part of agent, 0.2 ~ 1 part and 50 ~ 70 parts of solvent of auxiliary agent.
3. coatings as described in claim 1, which is characterized in that the flexible polyester polyalcohol is glass transition
Temperature is less than or equal to 0 DEG C of polyester polyol, the preferably RS861 of 9,000 Chemical Industry Science Co., Ltd of Dongguan City, Shanghai
Company is created in Shuai Ke Chemical Co., Ltd. SK9330, the Eterol5103 of Changxing chemistry, the Eterol5590 of Changxing chemistry and Cohan
One of Desmophen 1200 or a variety of.
4. coatings as described in claim 1, which is characterized in that the stiff polyesters polyalcohol is glass transition
Temperature is greater than 0 DEG C of polyester polyol, preferably Uralac SN822 S1-70 of Royal DSM company, Royal DSM company
In the Joncryl 592 of Uralac SN830 S2-60ND, the Joncryl 942 of BASF AG and BASF AG it is a kind of or
It is a variety of.
5. coatings as described in claim 1, which is characterized in that the tripolymer of the diisocyanate monomer includes
Hexamethylene diisocyanate trimer, '-diphenylmethane diisocyanate tripolymer, toluene diisocyanate trimer, different Fo Er
One of ketone diisocyanate trimer and 4,4- hexylmethane tripolymer are a variety of；The solidification
Agent is preferably the Desmodur N3390BA of Cohan wound company.
6. coatings as described in claim 1, which is characterized in that flexible polyester polyalcohol in the coatings
Molar ratio with the-NCO of total-OH and curing agent of stiff polyesters polyalcohol is 1:1.0 ~ 1:1.2, preferably 1:1.1 ~ 1:
1.2。
7. coatings as described in claim 1, which is characterized in that the catalyst is organotin catalysts, preferably
It is one of dibutyl tin dilaurate, stannous octoate, dibutyl tin acetate and two (dodecyl) dibutyl tins
Or a variety of, the Dabco T-12 more preferably for AIR PRODUCT company；
And/or the auxiliary agent is one of defoaming agent, levelling agent or a variety of；Wherein, the defoaming agent is preferably to finish
In BYK-051, BYK-052, BYK-053, BYK-055, BYK-065, BYK-071, BYK-141, BYK-180 of gram chemical company
It is one or more；
The levelling agent is preferably BYK-358N, BYK-353, BYK-354, BYK-390, BYK- of Bi Ke chemical company
392, one of BYK310, BYK-331, BYK-333, BYK-344 or a variety of；
And/or the solvent is toluene, dimethylbenzene, ethyl acetate, butyl acetate, ethyl alcohol, isopropanol, butanol, methyl tert-butyl
One of base ketone, butanone, ethylene glycol ethyl ether and propylene-glycol ethyl ether are a variety of.
8. a kind of preparation method of coatings comprising following step:
Will the composition of raw materials as described in any one of claim 1 ~ 7 be uniformly mixed, then using roller coating technology be directly coated at it is soft
Property substrate surface, can wind compound after 1 ~ 10 minute, 90 ~ 120 DEG C of bakings, continue thereafter under the conditions of 40 ~ 80 DEG C
Baking ageing obtains the fexible film containing coatings in 12 ~ 96 hours.
9. preparation method as claimed in claim 8, which is characterized in that the flexible parent metal refers to that fracture rate elongation is greater than
200% macromolecule membrane, preferably thermoplastic polyurethane film.
10. a kind of answering as coating on flexible parent metal surface of the coatings as described in any one of claim 1 ~ 7
With.
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| CN110936643A (en) * | 2019-11-11 | 2020-03-31 | 广东鑫瑞新材料科技有限公司 | Production method of low-haze vacuum evaporation film |
| CN111499833A (en) * | 2019-01-31 | 2020-08-07 | 南京理工大学 | Polyurethane type self-repairing resin |
| CN112321878A (en) * | 2020-11-01 | 2021-02-05 | 浙江世窗光学薄膜制造有限公司 | Self-repairing polyurethane heat insulation film and preparation method and application thereof |
| CN112321879A (en) * | 2020-11-01 | 2021-02-05 | 浙江世窗光学薄膜制造有限公司 | Self-repairing thermoplastic polyurethane heat insulation film and preparation method and application thereof |
| CN113278353A (en) * | 2021-04-30 | 2021-08-20 | 中科院长春应化所黄埔先进材料研究院 | Coating and preparation method and application thereof |
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| CN115044019A (en) * | 2022-06-24 | 2022-09-13 | 江门市长河化工实业集团有限公司 | Preparation method of resin and resin spraying foaming system |
| CN115074003A (en) * | 2022-06-15 | 2022-09-20 | 广东安捷伦新材料科技有限公司 | Self-repairing coating and preparation method thereof |
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