CN104830218B - Soft-touch feel coating composition having excellent elasticity and improved scratch resistance - Google Patents
Soft-touch feel coating composition having excellent elasticity and improved scratch resistance Download PDFInfo
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- CN104830218B CN104830218B CN201410291006.9A CN201410291006A CN104830218B CN 104830218 B CN104830218 B CN 104830218B CN 201410291006 A CN201410291006 A CN 201410291006A CN 104830218 B CN104830218 B CN 104830218B
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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
- 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
-
- 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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
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- 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
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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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- 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
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- 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
- C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
- C08J2355/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
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- 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
- C08J2475/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/02—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
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Abstract
The invention provides a coating composition and a base material coated thereby, wherein the coating composition comprises a first component and a second component. The first component comprises polyester resin and acrylic acid resin and the second component includes isocyanate. The weight ratio of the polyester resin to the acrylic acid resin is 3:1-5:1 and the weight ratio of the polyester resin to the isocyanate is 1.2:1-1.8:1.
Description
Technical field
The present invention relates to environment-friendly solvent-borne type soft feel coating composition, more specifically, it is related to contain 100%
The coating composition of solid polyester resin, acrylic resin and isocyanates.The invention further relates to be applied with such coating composition
The base material for covering.
Background technology
In order to improve the tactile property of automobile inner part, it has been increasingly using in recent years so-called " flexible touch "
Coating.The coating of " flexible touch " can assign that coated base material is soft, elastic, comfortable sense of touch, while improving through applying
Cover the outward appearance of base material.In practice, some coating that can provide excellent resilient flexible sense of touch have resistance to marring, weather-proof
Property, the defect of chemicals-resistant difference, and some have the elastic tactility that the coating of improved resistance to marring has not enough.In addition,
In order to obtain good appearance, some soft feel coatings need to use substantial amounts of diluent (solvent) in process so that
A large amount of pernicious gases are discharged into environment, while containing dissolvent residual higher in the paint film of gained.Therefore, to good
There is demand in the environment-friendly coating that elasticity has improved resistance to marring, weatherability and chemical-resistant simultaneously.
The content of the invention
The present invention provides a kind of soft feel coating composition, and its (a) first component, first component includes polyester tree
Fat and acrylic resin；(b) second component, second component includes isocyanates, wherein the polyester resin and propylene
The weight ratio of acid resin is 3:1-5:1, the polyester resin is 1.2 with the weight ratio of isocyanates:1-1.8:1.
The present invention is also provided through a kind of coated base material, including base material and is deposited at least a portion base material
Aforementioned coating composition.
Detailed description of the invention
It is in except embodiment or in addition clearly state, it will be understood that what is used in specification and claims is all
The numerical value for representing quantity, the reaction condition of composition etc. can be changed according to term " about " in all cases.Therefore, unless
There is opposite explanation, numerical parameter otherwise listed in the following description book and claims is approximation, can be by
The performance that is gone for according to the present invention and change.At least, rather than in order to limit this principle equivalent to right
Implementation, each numerical parameter should at least explain according to significant digits and use common rounding-off method.
Although the number range and parameter of listing wide scope of the present invention are approximations, the numerical value listed in specific embodiment
Record as accurate as possible.But, any one numerical value natively has certain error.The error is its corresponding measurement side
The inevitable outcome of the standard deviation drawn in method.
In one embodiment, there is provided a kind of soft feel coating composition, it includes the first component and second group
Point, first component includes polyester resin and acrylic resin, and second component includes isocyanates, wherein the polyester
The weight ratio of resin and acrylic resin is 3:1-5:In the range of 1, the weight ratio of the polyester resin and isocyanates is 1.2:
1-1.8:In the range of 1.
Polyester resin in first component is high solids content polyester resin, the preferably polyester resin of 100% solid content.
Applicable polyester resin generally includes unsaturated polyester resin, and its number-average molecular weight is for about 1000-2000.The unsaturated polyester (UP) tree
Fat can be the product of long-chain biatomic acid and polyalcohol.Such polyester resin for example can with trade name PE6001T from
Guangzhou Human Chemicals Co., Ltd is commercially available.By using high solid content resin, Coating material composition is reduced
Organic solvent content in thing.Coating composition is applied to after base material and solidification, and the smell of the coating for being formed is not obvious, together
When harmful gas content significantly reduce.
In one embodiment, the coating composition has the solid content of 45-65%, preferably with 50-55%'s
Solid content.
Acrylic resin in first component is preferably the acrylate copolymer of hydroxyl-functional.In particular it is preferred to hydroxyl
Base value is the hydroxy functionalized acrylate copolymer of 80-90, acid number less than 7.The acrylate copolymer of suitable hydroxyl can be with
Prepared by polymerizable ethylenically unsaturated monomer, and can be (methyl) acrylic acid and/or (methyl) alkyl acrylate
With one or more copolymer of other polymerizable ethylenically unsaturated monomers, described other polymerizable ethylenically unsaturated monomers
E.g. (methyl) alkyl acrylate, including (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) acrylic acid fourth
Ester and acrylic acid-2-ethyl caproite, ethyl vinyl aromatic compounds, such as styrene, AMS and vinyltoluene
Deng.All of herein " (methyl) acrylate " and similar terms are intended to include both acrylate and methacrylate.Can
Acrylic resin for example can be with trade name ZJ-221A ACRYLIC RESIN commercially available from SUZHOU JIAXIANG RESIN
Obtain.
Acrylate copolymer generally in finished product coating with it is isocyanate-crosslinked, thus increase the crosslink density of coating and hard
Degree.Increasing the amount of acrylate copolymer can increase the hardness (resistance to marring) of coating, but with the increase of acrylic acid content, institute
The flexible touch for obtaining coating can be decreased.Inventor has found, the polyester resin described in first component and acrylic acid tree
The weight ratio of fat is 3:1-5:When in the range of 1, it is capable of achieving excellent hardness (resistance to marring) and is balanced each other with flexible touch.
Second component includes isocyanates.Terms used herein " isocyanates " and similar terms include isocyanic acid
The cyclic trimer of ester, polyisocyanates and polyisocyanates.Suitable isocyanates includes IPDI, 1,
3- or 1,4- cyclohexane diisocyanates, dicyclohexyl methyl hydride diisocyanate, tetraalkyl xylylene diisocyanate are for example
M- tetramethyl xylylene diisocyanate, p- phenylene diisocyanate, polymethylene multi-phenenyl isocyanate, the first of diphenyl five
Group diisocyanate, 2,6- toluene di-isocyanate(TDI)s, connection fennel phenylene diisocyanate, ditolyl diisocyanate, naphthalene -1,4- two
Isocyanates, double (4- isocyanatophenyls) methane, 4,4 '-diphenylpropane diisocyanate, the isocyanic acid of hexa-methylene two
Ester, and how suitable, the tripolymer of above-mentioned substance, for example, the isocyanate trimer of hexamethylene diisocyanate.It is preferred that
Ground, is suitable for isocyanates of the invention for hexamethylene diisocyanate and/or IPDI.
Isocyanates in polyester resin in a preferred embodiment, first component and second component
Weight ratio be 1.2:1-1.8:1.When the ratio of polyester resin and isocyanates is less than 1.2:1 (isocyanate content increases)
When, the hardness of gained paint film increases, and elasticity and adhesive force decline.When the ratio of polyester resin and isocyanates is more than 1.8:1 is (different
The reduction of cyanic acid ester content) when, the slipping of gained paint film, resistance to marring and chemical resistance decline.
Can be to adding various additives in soft feel coating composition of the invention.Generally, these additives are added
To in first component, but based on user need, in these additives being added into the first component or the second component or
In two kinds of components.The example of suitable additive includes solvent such as ester, alcohol, assimilation compound.The example of ester includes acetic acid second
Ester, butyl acetate and acetic acid diol ester etc..The example of alcohol includes ethanol and butanol.The example of ketone includes MEK and methyl positive penta
Base ketone.In one embodiment, to adding one or more solvent in each in first component and the second component.
Suitable solvent blend may include such as one or more ester, one or more ketone and/or one or more alcohol.
Coating composition of the invention can also include other additives commonly used in the art, and it includes but is not limited to dispersion
Agent, smooth agent, wax powder, delustering agent, colouring agent (pigment), ultra-violet absorber and light stabilizer.These additives are generally with this
Customary amount known to art personnel is used.Generally, its is total when coating composition of the invention for these additives
20wt% of the amount no more than said composition gross weight.
In one preferred embodiment, soft feel coating composition of the invention includes smooth agent and wax powder, institute
The smooth agent of selection is 1 with the weight ratio of wax powder:1-1:2, so as to assign excellent resistance to marring and smooth feeling combination.It is described flat
Lubrication prescription and wax powder can be selected from those commonly used in the art.In a preferred embodiment, the smooth agent can be polyamides
Amine wax, the M-P-A2000X of the ELEMENIS SPECIALTIES for such as deriving from；The wax powder can be Tissuemat E, such as
From the HPA-60 of ELEMENIS SPECIALTIES.
In addition, the feel further to increase the coating composition, the organosilicon that can also include 0.1-0.2wt% adds
Plus agent.Any such additives for the purposes, the such as, but not limited to BYK306 from BYK can be used.
Coating composition of the invention can be coated on base material by any method known to those skilled in the art.It is such
Method includes but is not limited to spraying, roller coat, dip-coating, brushing, flow coat, curtain coating etc..It is applied to after base material, the Coating material composition
Thing can experience solidification, for example, solidification can at room temperature through carrying out in a few days or at elevated temperatures, such as 120 ℉ or
It is higher, such as 180 ℉ or higher.Residence time in baking oven changes according to temperature, air-flow etc., and can be by people in the art
Member is optimized.Generally, after solidification thickness of dry film is usual between 30-60 μm, such as between 40-50 μm.
In another embodiment, the present invention is also provided through a kind of coated base material, including base material and is deposited at least
Soft feel coating composition on a part of base material.
The base material that can be coated with double-component paint composition of the invention can be any suitable base material, including but not
It is limited to metal or plastics.Preferably, the base material is thermoplastic acrylonitrile-butadiene diene-styrene copolymer (ABS) base material.Example
Such as, the base material can be the ABS portion point of automobile inner part or consumable electronic product.In a preferred embodiment,
The base material is automobile inside door handle OR gate backplate.In another preferred embodiment, the base material is instrument board.Sent out when by this
Bright double-component paint composition is coated on metal and crystallinity plastic basis material higher such as polypropylene (PP), polyamide
(PP) or ethylene propylene diene rubber (EPDM), it may be necessary to which primer coating promotes the composition with base material first on base material
Bonding.
Embodiment
Following embodiments are provided the present invention is expanded on further, but it is not considered that it is limited the present invention to described in embodiment
Details.In addition to explanation in addition, all of parts and percentages are by weight in following embodiments and in the whole text specification.
The preparation of soft feel coating composition of the present invention
Table 1
The composition of soft feel coating composition of the invention
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Component A | 100 (parts) | 100 (parts) | 100 (parts) | 100 (parts) |
| Polyester resin1 | 38 | 35 | 39 | 30 |
| Acrylic resin2 | 8 | 10 | 8 | 10 |
| Pigment3 | 3 | 2.5 | 3.5 | 2 |
| Smooth agent4 | 0.4 | 0.5 | 0.5 | 0.4 |
| Wax powder5 | 0.8 | 0.8 | 1 | 0.8 |
| Delustering agent6 | 5 | 6 | 6 | 4 |
| Ultra-violet absorber7 | 0.4 | 0.42 | 0.4 | 0.35 |
| Dispersant8 | 0.1 | 0.1 | 0.15 | 0.1 |
| Solvent9 | 44.3 | 44.68 | 40.43 | 52.35 |
| Component B | 33 (parts) | 33 (parts) | 35 (parts) | 30 (parts) |
| Isocyanates10 | 23.43 | 23.43 | 24.85 | 21.3 |
| Solvent11 | 9.57 | 9.57 | 10.15 | 8.7 |
1PE6001T, supplier Guangzhou Human Chemicals Co., Ltd；
2ZJ-221A ACRYLIC RESIN, supplier SUZHOU JIAXIANG RESIN；
3Titanium dioxide, carbon black powder, iron oxide red pigment mixture；
4M-P-A2000X, supplier ELEMENIS SPECIALTIES；
5HPA-60, supplier ELEMENIS SPECIALTIES；
6Acematt TS100, supplier EVONIK DEGUSSA；
7Eversorb93, supplier Everlight Chemical, Sanduvor3212, supplier Clariant；
8DISPERBYK110, DISPERBYK163, BYK306 supplier BYK；
9Various solvents：Ethanol, butanol, ethyl acetate, butyl acetate；
10DESMODUR N-3390, supplier Bayer；
11Butyl acetate；
In order to generate component A, will include that ethanol, butanol, ethyl acetate, the solvent of butyl acetate are put into milling apparatus first
In (SFJ-400, Shanghai Modern Environmental Engineering Technology Co., Ltd.), dispersant DISPERBYK110 and DISPERBYK163 are added
(BYK) high-speed dispersion equipment, is opened, is stirred.Then, under stirring, following components are sequentially added：100% solid
Polyester resin, acrylic resin, smooth agent and wax powder, titanium dioxide, carbon black powder, iron oxide red pigment, Acematt TS100 flatting silicas,
BYK306, Eversorb93 and Sanduvor3212.After said components are well mixed, add based on 100 parts of component A mixing
Thing is calculated as 100-150 parts of grinding bead, after grinding reaches Hai Geman fineness about 5.5, stops milling apparatus.Will grinding it is qualified after
Component A is filled into canister, is sealed standby.
Mix with solvent by by isocyanates, component B is obtained.
Blending ingredients A and component B, forms soft feel coating composition of the invention.
By each coating composition of obtained embodiment 1-4 as described above using diluent regulation to suitable viscosity, dilution
Agent is the mixture of butyl acetate and butanol, and its ratio is 2:1-1:In the range of 2.Then, with air gun by the painting after dilution
Feed composition is sprayed in ABS substrate, paint film dodge do finger it is dry after, be put into the baking oven baking 30min of 180 ℉.After baking, survey
Film thickness in about 40-50 μ ms.
Using two kinds of commercially available soft feel coating example 1 and comparison example 2 as a comparison.According to side same as described above
Formula, two kinds of coating are coated on ABS substrate and toasted, the paint film for being solidified.
The various performance tests of the embodiment 1-4 and the film of comparison example 1-2 that are coated in ABS substrate be shown in table 2 below-
In 11.
1. resistance to cleaning agent test
Evaluation method：10 drops cleaning agent (cleaning agent title see the table below 2) are dripped on paint film with dropper, is retained 1 minute, while
Friction media (Crock Cloth) is pinned with hand to be rubbed.Rubbing number is 10 circulations, then visual valuation calico transfer etc.
The color change of level and paint film.
Calico mobility self-evaluation standard：ISO105-A03, whiteness level includes " 1-5 " level, and " 1 " level indicates serious color
Change, " 5 " level represents slight or no color change.
Paint film color Assessment of Changes standard：ISO105-A02, tonal gradation includes " 1-5 " level, and " 1 " level indicates serious
Color change, " 5 " level represents slight or no color change.
From table 2 below, the tonal gradation of various embodiments of the present invention is all higher than 4, is shown compared to comparison example excellent
Resistance to cleaning agent performance.
The resistance to cleaning agent test result of table 2.
2. resistance to opacifier and insecticide are tested
Evaluation method：Opacifier and insecticide are dripped on paint film with dropper.Paint film is put into 180 ℉ baking ovens and is toasted
1 hour, taking-up returned to room temperature, visually the change of observation paint film.Evaluation criterion：1 grade, it is not changed in；2 grades, slight change；3
Level, obvious change；4 grades, it will be apparent that change.
Then, it is as described below that resistance to scratch experiment is carried out to paint film.Use stiff rod tester (Type318, Germany
ERICHSEN), a diameter of 1mm of nib, load pressure 8N, draw a straight line on paint film.It is de- that paint film at visual line whether there is
Fall.
The resistance to opacifier of table 3. and insecticide test result
| Paint film variation grades | Scratch-resistant is tested | |
| Embodiment 1-4 | 1 | Coating is without the removal that comes off |
| Comparison example 1 | 2 | Coating slightly comes off |
| Comparison example 2 | 2 | Coating shedding |
3. colour fasteness to rubbing test
Colour fastness to rubbing test is carried out according to method ISO20433 dry method, using device A tlas CM-
5Crockmeter, friction media Crock Cloth, load 950g, Rubbing number is 10 circulations, visually grading.
Evaluation criterion：ISO105-A02, tonal gradation includes " 1-5 " level, and " 1 " level indicates serious color change, " 5 "
Level represents slight or no color change.From table 4 below, various embodiments of the present invention show excellent resistance to compared to comparison example
Friction fastness properties.
The colour fasteness to rubbing test result of table 4.
| Grade | |
| Embodiment 1-4 | 5 |
| Comparison example 1 | 4 |
| Comparison example 2 | 3 |
4. heat-proof aging test
Taken out after model with paint film is placed 168 hours at 105 DEG C, visual valuation cosmetic variation after 1 minute.
Adhesive force is evaluated according to GMW14829-2006, it is 3M898 to use adhesive tape, line is at intervals of 1mm/2mm, line number
It is 6*6 to measure.
Adhesive force grade includes " 0-5 " level：" 0 " level represents no pull-away, and " 1 " level represents that pull-away area does not surpass
5% is crossed, " 2 " level represents pull-away area minimum 5% but no more than 15%, and " 3 " level represents pull-away area minimum 15%
But no more than 35%, " 4 " level represents pull-away area minimum 15% but no more than 35%, and " 5 " level represents that paint film has >=65%
Area comes off.
From table 5 below, compared to comparison example, the sample surface of embodiment of the present invention composition coating is without obvious color
Or gloss changes, adhesive force test result is " 0 " level.
The heat-proof aging test result of table 5.
5. wearability test test
The wearability of paint film is tested using CS-10 emery wheels (U.S. TABER), wherein, load is 500g, is followed using 2000
Ring/50 μm.Whether the worn out situation of visual observations paint film there are other unfavorable conditions.
From following table, paint film obtained in embodiment of the present invention 1-4 and paint film obtained in comparison example 1-2 it is not worn out extremely
Base material.
The wearability test result of table 6.
| Outward appearance phenomenon | |
| Embodiment 1-4 | Paint film is not worn out to base material |
| Comparison example 1 | Paint film is worn through to base material |
| Comparison example 2 | Paint film is not worn out to base material |
6. traumatic resistance test
Use stiff rod tester (Type318, German ERICHSEN), nib a diameter of 1mm, load pressure 13N, in paint film
On draw a straight line.Observation coating surface is whether there is without obvious scratch damage phenomenon.
The traumatic resistance test result of table 7.
| Outward appearance phenomenon | |
| Embodiment 1-4 | Surface no marking phenomenon |
| Comparison example 1 | The slight cut phenomenon in surface |
| Comparison example 2 | Surface no marking phenomenon |
7. sweat proof fluidity test
The model that paint film will be coated with is separately immersed in acid solution (0.5% acetum) and basic solvent (0.8% phosphorus
Sour disodium hydrogen solution) in 24 hours.Taking-up is placed at room temperature after 1 hour, visual valuation outward appearance.Observation sample surface has whether there is
Bubble, decomposition, fold, gloss and color change.
Then, resistance to scratch experiment is carried out to paint film as described above.Use stiff rod tester (Type318, Germany
ERICHSEN), a diameter of 1mm of nib, load pressure 8N, draw a straight line on paint film.It is de- that paint film at visual line whether there is
Fall.
The sweat proof fluidity test result of table 8.
8. smell test
Six different judges provide scoring respectively, then provide composite rating.
Evaluation criterion：Oder levels >=4 grade；10 grades=odorlessness；8 grades=discernable；6 grades=can stand；4 grades=detest
Dislike；2 grades=very nauseous；1 grade=cannot stand.
The smell test result of table 9.
| Oder levels | |
| Embodiment 1-4 | 8 |
| Comparison example 1 | 6 |
| Comparison example 2 | 4 |
9. color fastness to light and illumination ageing are tested
Tested using Atlas CI5000 xenon lamp aging casees：Irradiation level 1.4W/m under 420nm2, black normal temperature 100
DEG C, relative humidity 0-20%, 65 DEG C of the temperature inside the box, dosage 1240KJ/m2.Visual valuation outward appearance and color change.Use BYK
Gradner4430 measurement gloss changes.ISO105-A02, visually judges grey scale change as described above.
From following table, the properties of paint film are superior to obtained in comparison example 1-2 obtained in embodiment of the present invention 1-4
The performance of paint film.
The color fastness to light of table 10. and illumination ageing test result
10. aldehyde ketone class testing
Using DNPH solid phase adsorption/high performance liquid chromatography, in the in-car air of measure shown in following table
Four kinds of contents of aldoketones material.Result is as shown in the table.
The aldoketones test result of table 11.
| Material (μ g/g) | Embodiment 1-4 | Comparison example 1 | Comparison example 2 |
| Formaldehyde | 3.0 | 8 | 15 |
| Acetaldehyde | Do not detect | 3.6 | 4.2 |
| Hexenal | Do not detect | 8.9 | 5.0 |
| Acetone | Do not detect | 7.5 | 4.8 |
Properties survey has been carried out to embodiment of the present invention 1-4 and paint film obtained in two kinds of commercially available prod as already described above
Examination.From above-mentioned measurement result, the paint film prepared by soft feel coating composition of the invention has good elastic, anti-
Scratch resistant, chemicals-resistant, weatherability.In addition, it is simple using the operating procedure that composition of the invention forms coating, and due to
Using environment-friendly type solvent, the harmfulness to environment is smaller.Paint film odor as obtained by the present composition is not obvious, to human body
Pernicious gas content is few.It meets national passenger car in-car air quality standard, can be used as new generation of environment protection product
Automotive trim paint.
Although having explained and having described certain aspects of the present disclosure, it is obvious to a person skilled in the art that can do
Go out various other changes and modify without departing from the spirit and scope of the present invention.Therefore appended claims are intended to cover fall into
All these changes and modification in the scope of the invention.
Claims (8)
1. a kind of soft feel coating composition, comprising：
A () first component, first component includes 100% solid polyester resin and acrylic resin；With
B () second component, second component includes isocyanates,
The number-average molecular weight of wherein described polyester resin is 1000-2000, and the acrylic resin is that hydroxyl value is 80-90, acid
Hydroxy functionalized acrylic resin of the value less than 7,
The polyester resin is 3 with the weight ratio of acrylic resin:1-5:1, the weight ratio of the polyester resin and isocyanates
It is 1.2:1-1.8:1, and
Wherein described coating composition is the solid content of 45-65%.
2. soft feel coating composition as claimed in claim 1, wherein the isocyanates includes the isocyanide of hexa-methylene two
Acid esters and/or IPDI.
3. soft feel coating composition as claimed in claim 1, wherein the coating composition also includes that weight ratio is 1:
1-1:2 smooth agent and wax powder.
4. soft feel coating composition as claimed in claim 3, wherein the smooth agent is polyamide wax, the wax powder is
Polyethylene wax powder.
5. coated base material, it includes,
(i) base material, and
(ii) the soft feel coating composition at least a portion base material is deposited on, comprising：
A () first component, first component includes 100% solid polyester resin and acrylic resin；With
B () second component, second component includes isocyanates,
The number-average molecular weight of wherein described polyester resin is 1000-2000, and the acrylic resin is that hydroxyl value is 80-90, acid
Hydroxy functionalized acrylic resin of the value less than 7,
The polyester resin is 3 with the weight ratio of acrylic resin:1-5:1, the weight ratio of the polyester resin and isocyanates
It is 1.2:1-1.8:1, and
Wherein described coating composition is the solid content of 45-65%.
6. coated base material as claimed in claim 5, wherein the base material includes thermoplastic abs base material.
7. coated base material as claimed in claim 5, wherein the base material is fascia.
8. coated base material as claimed in claim 5, wherein the base material is automobile inside door handle OR gate backplate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410291006.9A CN104830218B (en) | 2014-06-25 | 2014-06-25 | Soft-touch feel coating composition having excellent elasticity and improved scratch resistance |
| HK15111011.5A HK1210200A1 (en) | 2014-06-25 | 2015-11-09 | A soft-touch coating composition having good elasticity and improved scratch resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410291006.9A CN104830218B (en) | 2014-06-25 | 2014-06-25 | Soft-touch feel coating composition having excellent elasticity and improved scratch resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104830218A CN104830218A (en) | 2015-08-12 |
| CN104830218B true CN104830218B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410291006.9A Active CN104830218B (en) | 2014-06-25 | 2014-06-25 | Soft-touch feel coating composition having excellent elasticity and improved scratch resistance |
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| Country | Link |
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| CN (1) | CN104830218B (en) |
| HK (1) | HK1210200A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI682976B (en) | 2016-03-02 | 2020-01-21 | 阿科瑪法國公司 | Dual cure soft touch coatings |
| CN105949985B (en) * | 2016-05-31 | 2019-03-01 | Ppg涂料(天津)有限公司 | The product for improving the 2K coating composition of orange peel appearance and being coated with it |
| CN107177289B (en) * | 2017-06-13 | 2020-05-29 | Ppg涂料(天津)有限公司 | One-component coating composition and substrates coated therewith |
| CN111234620A (en) * | 2018-11-28 | 2020-06-05 | Ppg涂料(天津)有限公司 | Aqueous soft touch coating composition and abrasion resistant coating formed therefrom |
| CN107936733A (en) * | 2017-12-05 | 2018-04-20 | 马鞍山市东方仪表有限公司 | A kind of preparation method of resistant fascia |
| CN109233579A (en) * | 2018-08-03 | 2019-01-18 | 邢凤江 | A kind of coating and its preparation application method with soft feel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008231149A (en) * | 2007-03-16 | 2008-10-02 | Arakawa Chem Ind Co Ltd | Composition for touch feeling-coating |
| CN101684387A (en) * | 2008-09-27 | 2010-03-31 | 比亚迪股份有限公司 | Paint composition |
| JP2011153204A (en) * | 2010-01-27 | 2011-08-11 | Hitachi Chem Co Ltd | Urethane-modified acrylic resin, and coating agent and adhesive produced by using the same |
| CN103319992A (en) * | 2013-06-19 | 2013-09-25 | 中华制漆（深圳）有限公司 | Environment-friendly elastic feeling paint and using method thereof |
-
2014
- 2014-06-25 CN CN201410291006.9A patent/CN104830218B/en active Active
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2015
- 2015-11-09 HK HK15111011.5A patent/HK1210200A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008231149A (en) * | 2007-03-16 | 2008-10-02 | Arakawa Chem Ind Co Ltd | Composition for touch feeling-coating |
| CN101684387A (en) * | 2008-09-27 | 2010-03-31 | 比亚迪股份有限公司 | Paint composition |
| JP2011153204A (en) * | 2010-01-27 | 2011-08-11 | Hitachi Chem Co Ltd | Urethane-modified acrylic resin, and coating agent and adhesive produced by using the same |
| CN103319992A (en) * | 2013-06-19 | 2013-09-25 | 中华制漆（深圳）有限公司 | Environment-friendly elastic feeling paint and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1210200A1 (en) | 2016-04-15 |
| CN104830218A (en) | 2015-08-12 |
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