CN112831264B - Water-based automotive interior soft-feel coating and preparation method and use method thereof - Google Patents
Water-based automotive interior soft-feel coating and preparation method and use method thereof Download PDFInfo
- Publication number
- CN112831264B CN112831264B CN202011619224.2A CN202011619224A CN112831264B CN 112831264 B CN112831264 B CN 112831264B CN 202011619224 A CN202011619224 A CN 202011619224A CN 112831264 B CN112831264 B CN 112831264B
- Authority
- CN
- China
- Prior art keywords
- water
- soft
- feel
- automotive interior
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- 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
-
- 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
Abstract
The invention provides a water-based automotive interior soft-feel paint, a preparation method and a use method thereof, and the water-based automotive interior soft-feel paint comprises the following components: 60-70% of water-based soft-feel resin, 0.3-0.5% of wetting agent, 0.3-0.5% of flatting agent, 2-5% of matting powder, 0.2-0.5% of defoaming agent, 0.2-0.5% of film-forming assistant, 0.5-1% of pH regulator, 0.5-1% of rheological assistant and the balance of water. The prepared coating is added with a curing agent and water, and is sprayed and then subjected to baking reaction to obtain a silky and soft coating which is soft in hand feeling and excellent in performance and meets the TL226 interior decoration standard of the public.
Description
Technical Field
The invention belongs to the technical field of water-based paint preparation, and particularly relates to a water-based soft-feel paint for automotive interiors, and a preparation method and a use method thereof.
Background
As a high-grade consumer product in modern society, the automobile coating needs to meet the high-quality requirement of consumers, meanwhile, the environmental protection requirement of the consumers on automobile interior is higher and higher, the automobile interior coating gradually moves to comprehensive water-based property from the traditional solvent type, and particularly in recent years, along with the coming of the related VOC standard of China, the automobile interior coating moves to transformation, and high-solid low-viscosity and water-based coatings move to the foreground. The high solid content and low viscosity have many limitations, for example, the metal paint is difficult to achieve high solid content due to the requirement on texture, the traditional matte black is difficult to achieve full high solid content due to the reason that the special dispersion viscosity of the carbon powder is high, and the like, and the defects in the aspect are made up by the appearance of the water-based paint.
At present, in the passenger car industry, more and more waterborne interior decorations are applied; the water-based soft-feel coating is applied, solves the problem of VOC (volatile organic compounds) emission of the traditional soft-feel coating, and also solves the problem of difficult solution of water-based matte black scratch resistance.
Disclosure of Invention
The invention aims to provide a water-based automotive interior soft-feel coating, which can achieve the standard of soft performance of handfeel yarn by designing selection and application of resin, a leveling agent, an auxiliary agent, matting powder and the like.
The invention also aims to provide a preparation method of the water-based automotive interior soft-feel coating, which is designed according to a formula, and has the advantages of stable product system, soft hand feeling and excellent performance.
The invention also provides a using method of the water-based automotive interior soft-feel coating.
The specific technical scheme of the invention is as follows:
the water-based automotive interior soft-feel coating comprises the following raw materials in percentage by weight:
the aqueous soft-feel resin comprises: waterborne acrylic resin, waterborne polycarbonate polyurethane resin and waterborne polyurethane resin; the mass ratio is 1:1.5-3: 2-3. Preferably 1:3: 3.
The water-based acrylic resin is selected from Tesmann XK-540;
the water-based polycarbonate polyurethane resin is a Colesia baYHYDROL U2757 resin;
The waterborne polyurethane resin is Tesmann R-1010.
The flatting agent is degussel GLIDE 450;
the wetting agent is degussa Twin 4100;
the rheological additive is: the BYK LAPONITE RD and basf AS1130 composition is prepared from the following components in percentage by mass: 1;
the film-forming aid (high boiling point solvent) is: dipropylene glycol dimethyl ether;
the matting powder is Japanese east Cao E-1011.
The defoaming agent is Degussa Airex 902W;
the pH regulator is as follows: dimethylethanolamine.
The water is deionized water.
The invention provides a preparation method of a water-based automotive interior soft-feel coating, which comprises the following steps:
1) uniformly stirring the aqueous soft-feel resin with the formula amount;
2) sequentially adding a defoaming agent, a flatting agent, a wetting agent, water, a film forming aid, a pH regulator accounting for 30-50% of the formula amount and a rheological aid accounting for 30-50% of the formula amount;
3) adding matting powder, dispersing until the fineness is less than 15 mu m, adding the rest pH regulator in the formula amount, and finally adding the rest rheological additive for regulating the system viscosity.
The step 1) stirring evenly, wherein the stirring speed is not faster than 800r/min, so as to avoid other adverse phenomena such as emulsion breaking and the like; preferably, the mixture is stirred and mixed at the rotating speed of 500-700 r/min.
Step 2) adding all the auxiliary agents in sequence to avoid the bad phenomena of uneven stirring or increased foam and the like;
adding a pH regulator in the step 3) to adjust the pH value of the coating system to 8-9; to avoid subsequent problems with the storage stability of the coating system.
The invention provides a use method of a water-based automotive interior soft-feel coating, which specifically comprises the following steps:
and (3) uniformly mixing the water-based automotive interior soft-feel paint with the curing agent component and the diluent, spraying, and drying.
The curing agent component comprises 70-85 wt% of water-based isocyanate and 15-30 wt% of propylene glycol methyl ether acetate;
the preparation method of the curing agent component comprises the following steps: mixing the water-based isocyanate and the propylene glycol methyl ether acetate, wherein the temperature is required to be 25-40 ℃, the humidity is 25-75%, and the mixture is uniformly stirred at the rotating speed of 500-700r/min, and the whole stirring time is not more than 30 min.
The aqueous isocyanate is selected from kesichun 304.
The mass ratio of the components of the water-based automotive interior soft-feel paint to the curing agent to the diluent is 4:1: 0.5-1.
Drying at the baking temperature of 70-80 ℃ for 4-5 hours;
the film thickness of the coating film is 40-50 μm.
The diluent is water
The construction solid content of the water-based automotive interior soft-feel coating is 35-40%.
The preparation method of the invention is based on the combination of several resins, additives and extinction in the formula and the reasonability of the process, so that the single coating with smooth surface and meeting the performance requirements is obtained. The surface effect and good performance of the coating are selected by changing the proportion of a plurality of resins and selecting the water-based isocyanate; the water-based automotive interior soft-feel coating prepared by the invention has soft hand feeling and excellent performance, and meets the popular TL226 interior standard. The popular VW TL226 is the most strict standard in the automotive interior trim industry, most automotive interior trim manufacturers equally adopt the VW TL226 standard to detect the performance of the paint at present, and the coating for the soft feel of the automotive water-based interior trim provided by the invention can completely meet the requirements of the TL226 standard through multiple performance tests.
Compared with the traditional solvent type automobile interior soft-feel coating, the invention has the following advantages: the water-based automotive interior soft-feel coating prepared by the preparation method meets the national environmental protection requirements on VOC; the performance can not only meet the requirements, but also meet the relevant requirements of various host factories on the odor performance of the automotive interior coating.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The test materials and reagents used in the following examples, etc., are commercially available unless otherwise specified.
The specific techniques or conditions not specified in the examples can be performed according to the techniques or conditions described in the literature in the field or according to the product specification.
Example 1 to example 3
The water-based automotive interior soft-feel coating comprises the following raw materials in percentage by weight: see table 1.
The preparation method of the water-based automotive interior soft-feel paint disclosed in the embodiments 1 to 3 comprises the following steps:
1) the stirring speed of the stirrer is 700R/min, the formula amount XK-540, the formula amount BAYHYDROL U2757 and the formula amount R1010 are added in sequence, and the mixture is stirred uniformly, so that a large amount of foam is generated at the moment, and most of the foam is mechanical foam;
2) maintaining the speed of the stirrer at 700r/min, adding Airex 902W of formula amount, observing the foam condition of the system, and performing the next operation when the foam is less, then adding GLIDE 450 and Twin 4100, continuing to observe the surface condition of the system, adding deionized water and DMM, and adding DMEA of half of the formula amount; then adding BYK LAPONITE RD and Pasteur AS1130 with half of the formula amount in the table 1, wherein the viscosity of the system rises faster and is 1000-2000 cps;
3) Adding the Dongcao 1011 matting powder, adjusting the rotation speed of the stirrer to 1200r/min, wherein the reason for increasing the rotation speed of the stirrer is that the matting powder is more suitable to be fused with the system under high shear, when the fineness of the system is less than or equal to 15 microns, slowing down the stirring speed of the stirrer, maintaining the rotation speed at 700r/min, adding the residual formula amount DMEA to adjust the pH value of the coating system to 8-9 so AS to avoid the storage stability of the coating system to be in the subsequent problem, adding the residual formula amounts BYK LAPONITE RD and Pasteur AS1130 again, and adjusting the viscosity to 2000-2500 cps.
The application method of the water-based automotive interior soft-feel coating comprises the following steps:
A. maintaining the speed of a stirrer at 700r/min, the temperature at 25-30 ℃, the humidity at 25-65% and 80 wt% of a water-based isocyanate (CorsiChun 304) curing agent in 20 wt% of a propylene glycol monomethyl ether acetate (PMA) solvent, and uniformly mixing to obtain a curing agent component;
B. the prepared water-based automotive interior soft-feel coating, curing agent components and deionized water components are mixed according to a mass ratio of 4: 1: 0.5, mixing, stirring for 10min at the rotating speed of 700r/min of a stirrer, fully and uniformly stirring the components, spraying the mixture on an ABS + PC material by using a gravity type spray gun, baking for 4-5h at 70-80 ℃, and taking out;
C. The thickness of the prepared coating film (dry film) is 40-50 microns.
Comparative examples 1 to 2
The coating comprises the following raw materials in percentage by weight: see table 1.
Comparative example 1 comparative example 2 was prepared in the same manner as in example 1.
The paint film property indexes of the respective examples and comparative examples are shown in Table 2.
The comparative examples and examples adjust the weight percent of resin to seek a balance between hand and performance. R-1010 can bring silky hand feeling to the coating, but at the same time, the hydroxyl value is lower, the crosslinking density is insufficient, and more chemical resistance and other properties cannot be brought to the coating; u2757 belongs to a polycarbonate resin, can bring good adhesive force and weather resistance to a coating film, but has general hand feeling and chemical resistance; the XK-540 can bring larger crosslinking density to a coating film, so that the chemical resistance and hand cream resistance are greatly improved.
TABLE 2 paint film Properties of the examples and comparative examples
| Performance parameter | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Appearance of paint | Qualified | Qualified | Qualified | Qualified | Fail to be qualified |
| Shelf life of coating | Qualified | Qualified | Qualified | Qualified | Qualified |
| Adhesion (grade) | Level 0 | Level 0 | Level 0 | Level 0 | Level 1 |
| Scratch-resistant coating | H | H | H | HB | HB |
| Emission performance | Qualified | Qualified | Qualified | Qualified | Qualified |
| Temperature resistance | Qualified | Qualified | Qualified | Qualified | Qualified |
| Weather resistance | Qualified | Qualified | Qualified | Qualified | Qualified |
| Sunshine simulation experiment | Qualified | Qualified | Qualified | Fail to be qualified | Fail to be qualified |
| Wear resistance | Qualified | Qualified | Qualified | Fail to be qualified | Fail to be qualified |
| Medium resistant | Qualified | Qualified | Qualified | Fail to be qualified | Fail to be qualified |
| Hand cream | Qualified | Qualified | Qualified | Fail to be qualified | Fail to be qualified |
| Hand feeling | Superior food | Good wine | Good wine | Superior food | Superior food |
The automobile water-based interior trim soft-feel paint provided by the invention can completely meet the requirements of TL226 standard through multiple performance tests.
Claims (9)
1. The water-based automotive interior soft-feel paint is characterized by comprising the following raw materials in percentage by weight:
60-70% of water-based soft-feel resin;
0.3 to 0.5 percent of wetting agent;
0.3 to 0.5 percent of flatting agent
2-5% of matting powder;
0.2 to 0.5 percent of defoaming agent
0.2 to 0.5 percent of film forming additive
0.5-1% of pH regulator;
0.5 to 1 percent of rheological additive
The balance of water;
the aqueous soft-feel resin comprises: waterborne acrylic resin, waterborne polycarbonate polyurethane resin and waterborne polyurethane resin; the mass ratio is 1:1.5-3: 2-3;
The water-based acrylic resin is selected from Tesmann XK-540;
the water-based polycarbonate polyurethane resin is selected from Corsia U2757;
the aqueous polyurethane resin is selected from Tesmann R-1010.
2. The aqueous automotive interior soft-feel coating of claim 1, wherein the rheological aid is: BYK LAPONITE RD and BASF AS1130, wherein the mass ratio of BYK LAPONITE RD to BASF AS1130 is 1: 1.
3. a method for preparing the water-based automotive interior soft-feel paint according to any one of claims 1 to 2, wherein the preparation method comprises the following steps:
1) uniformly stirring the aqueous soft-feel resin with the formula amount;
2) sequentially adding a defoaming agent, a flatting agent, a wetting agent, water, a film forming aid, a pH regulator accounting for 30-50% of the formula amount and a rheological aid accounting for 30-50% of the formula amount;
3) adding matting powder, dispersing until the fineness is less than 15 mu m, adding the rest pH regulator in the formula amount, and finally adding the rest rheological additive for regulating the system viscosity.
4. The method as claimed in claim 3, wherein the step 1) is performed by stirring uniformly at a rotation speed of 500-700 r/min.
5. The use method of the water-based automobile interior soft-feel paint according to any one of claims 1-2, characterized in that the use method comprises the following steps: and (3) uniformly mixing the water-based automotive interior soft-feel paint with the curing agent component and the diluent, spraying, and drying.
6. Use according to claim 5, wherein the curing agent component comprises 70-85wt% aqueous isocyanate and 15-30wt% PMA.
7. The use of the composition according to claim 5 or 6, wherein the curing agent component is prepared by: mixing the aqueous isocyanate and the PMA, wherein the temperature is 25-40 ℃, the humidity is 25-75%, and the mixture is uniformly stirred at the rotating speed of 500-700r/min, and the whole stirring time is not more than 30 min.
8. The use method according to claim 5 or 6, wherein the mass ratio of the water-based automotive interior soft-feel paint, the curing agent component and the diluent is 4:1: 0.5-1.
9. The use method according to claim 5 or 6, wherein the drying is carried out at a temperature of 70-80 ℃ for 4-5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011619224.2A CN112831264B (en) | 2020-12-31 | 2020-12-31 | Water-based automotive interior soft-feel coating and preparation method and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011619224.2A CN112831264B (en) | 2020-12-31 | 2020-12-31 | Water-based automotive interior soft-feel coating and preparation method and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112831264A CN112831264A (en) | 2021-05-25 |
| CN112831264B true CN112831264B (en) | 2022-05-24 |
Family
ID=75925715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011619224.2A Active CN112831264B (en) | 2020-12-31 | 2020-12-31 | Water-based automotive interior soft-feel coating and preparation method and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112831264B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231102B (en) * | 2022-01-20 | 2023-02-10 | 广东鑫皇冠新材料有限公司 | Soft-feeling iron printing coating and preparation method thereof |
| CN115093762B (en) * | 2022-08-05 | 2023-03-24 | 雅图高新材料股份有限公司 | Water-based plain base paint and preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589319B (en) * | 2013-11-08 | 2015-11-04 | 株洲市九华新材料涂装实业有限公司 | A kind of locomotive interior trim urethane soft-feel coating and preparation method |
| CN110358426A (en) * | 2019-07-12 | 2019-10-22 | 重庆韩拓科技有限公司 | Thermoplastic polyolefin aqueous treatment agent and preparation method thereof |
| CN110724448B (en) * | 2019-10-24 | 2022-04-05 | 芜湖春风新材料有限公司 | Water-based double-component elastic hand-feeling coating for airbag cover decoration, preparation method thereof and coating formed by same |
-
2020
- 2020-12-31 CN CN202011619224.2A patent/CN112831264B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112831264A (en) | 2021-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111978848B (en) | Yellowing-resistant dull odor-free PU polyurethane clear finish and preparation method thereof | |
| CN112831264B (en) | Water-based automotive interior soft-feel coating and preparation method and use method thereof | |
| CN101381581B (en) | Polyurethane transparent matt topcoat, preparation method and use method thereof | |
| CN110669419A (en) | Water-based acrylic polyurethane coating and preparation method thereof | |
| CN111500174A (en) | Water-based matte coating for automotive interior and preparation method and application thereof | |
| CN111019504A (en) | Waterborne polyurethane coating composition and application thereof | |
| CN104610868A (en) | Amino stoving varnish composition with scratch self-remediation function and preparation method of amino stoving varnish composition | |
| CN112812670A (en) | Bi-component PU coating and application thereof | |
| CN113248999A (en) | Recyclable water-based double-component white finish suitable for mechanical spraying and preparation method thereof | |
| CN111995940B (en) | Super-matte PU odor-free clear finishing coat and preparation method thereof | |
| CN113201275B (en) | Water-based double-component hand feeling paint capable of being recoated and preparation method and application thereof | |
| CN112538295B (en) | Automotive interior insulating coating and preparation method thereof | |
| CN111154388A (en) | Safe water-based two-component high-gloss finish paint and preparation method thereof | |
| CN114045074A (en) | Water-based pencil draw-coating matte varnish and preparation method thereof | |
| CN113480926A (en) | High-resistance double-component environment-friendly water-based matte clear finish paint | |
| CN109535977A (en) | Coating combination and purposes in a kind of Multifunctional quick-drying type of large arch dam | |
| CN108977032B (en) | Water-based dual-component high-gloss finish paint for helmet and preparation method thereof | |
| CN111138960A (en) | Water-based high-physical-property leather paint and preparation method and application thereof | |
| CN114539901A (en) | Waterborne polyurethane coating and preparation method thereof | |
| CN114410202A (en) | Matte black coating for automotive interior and preparation method thereof | |
| CN110713778B (en) | High-storage-stability high-gloss iron printing coating | |
| CN109401510B (en) | Modified acrylic coating and preparation method thereof, and glossiness adjusting method and application thereof | |
| CN113717628A (en) | Water-based PU coating and preparation method and application thereof | |
| CN110684446A (en) | Water-based ultra-clear primer suitable for solid wood furniture and preparation method thereof | |
| CN114456697B (en) | Polyurethane coating and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A water-based automotive interior soft coating and its preparation and use method Effective date of registration: 20230718 Granted publication date: 20220524 Pledgee: Anhui Fanchang Rural Commercial Bank Co.,Ltd. Sanshan Branch Pledgor: WUHU CHUNFENG NEW MATERIAL Co.,Ltd. Registration number: Y2023980048850 |