CN113980568B - Abnormal sound prevention and silencing coating for automotive interior and preparation and application thereof - Google Patents
Abnormal sound prevention and silencing coating for automotive interior and preparation and application thereof Download PDFInfo
- Publication number
- CN113980568B CN113980568B CN202111306789.XA CN202111306789A CN113980568B CN 113980568 B CN113980568 B CN 113980568B CN 202111306789 A CN202111306789 A CN 202111306789A CN 113980568 B CN113980568 B CN 113980568B
- Authority
- CN
- China
- Prior art keywords
- parts
- component
- abnormal sound
- coating
- solvent
- 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
- C09D175/06—Polyurethanes from polyesters
-
- 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
-
- 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
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The invention discloses an abnormal sound prevention mute coating for automotive interior, which comprises the following components: 100 parts of component A, 25-35 parts of component B and 10-20 parts of component C; the component A comprises the following components in parts by weight: 20-40 parts of polycarbonate resin A; 5-10 parts of polycarbonate resin B; 3-5 parts of toner; 1-3 parts of a dispersant; 0.5-1 part of drier; 7-10 parts of abnormal sound prevention silencing additive; 1-2 parts of a leveling agent; 1-2 parts of a light stabilizer; siO2 2 4-10 parts of matting powder and 30-50 parts of solvent; the component B is an HDI curing agent and a solvent; the component C is a diluent. The abnormal sound prevention and silencing coating for the automotive interior adopts the matching of two polyester resins and the abnormal sound prevention and silencing additive, and adjusts the types and the weight parts of other additives, so that the abnormal sound prevention and silencing coating can simultaneously reach the test standard of Qiya MS652-14 and pass the abnormal sound prevention and silencing test of Qiya automobiles.
Description
Technical Field
The invention belongs to the technical field of water-based coatings, and particularly relates to a double-layer/single-layer matte solvent type abnormal sound-proof silence coating which is applicable to spraying on PP (polypropylene) and PC (polycarbonate)/ABS (acrylonitrile butadiene styrene) substrates in automotive interior plastic parts.
Background
Along with the service time of automobiles, many automobiles have abnormal sounds of different degrees, particularly plastics, and the automobiles have friction of different degrees in the driving process, so that uncomfortable squeaking sound is generated. At the same time, the nail may also provide a slight squeak when scratched through the plastic. There is a need for a squeak-proof mute coating. The used leather or artificial leather is coated on the automobile parts, which brings high cost to the automobile and is difficult to coat at the edge of the plastic part. In order to solve this problem, a squeak-proof mute paint conforming to the performance of the automobile is required, but the manufacture of the squeak-proof mute paint needs to solve two technical problems as follows: 1: the test standard of the Qiya MS652-14 is to be achieved; 2: the anti-creaky sound mute effect test is carried out, and the formal approval is obtained.
The existing elastic paint for household appliances on the market at present has a certain squeak-proof and silencing effect, but cannot pass the above standard chemical resistance and weather resistance tests. A plurality of automobile interior decorative paints exist on the market, which have very good chemical resistance and weather resistance but cannot achieve the squeak-proof and mute effects at the same time, and although the squeak-proof and mute effects with certain effects exist in the automobile interior soft-touch elastic paint developed by the inventor, the antibacterial property experiment is poor and the automobile interior decorative paint cannot pass the MS652-14 standard.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an abnormal sound prevention and silencing paint for automobile interior decoration, and preparation and application thereof.
The invention relates to an abnormal sound prevention mute coating for automobile interior decoration, which comprises the following components in parts by weight: 100 parts of component A, 25-35 parts of component B and 10-20 parts of component C;
the component A comprises the following components in parts by weight: 20-40 parts of polycarbonate resin A; 5-10 parts of polycarbonate resin B; 3-5 parts of toner; 1-3 parts of a dispersant; 0.5-1 part of drier; 7-10 parts of abnormal sound prevention silencing additive; 1-2 parts of a leveling agent; 1-2 parts of a light stabilizer; siO2 2 4-10 parts of matting powder and 30-50 parts of solvent;
the component B is an HDI curing agent and a solvent; wherein the mass ratio of the HDI curing agent to the solvent is 85-95;
the component C is a diluent.
Further, the component A comprises the following components in parts by weight: 30-40 parts of polycarbonate resin A; 10 parts of polycarbonate resin B; wherein the mass ratio of the resin A to the resin B is 6; 3-5 parts of toner; 1-3 parts of a dispersant; 0.5-1 part of drier; 7-10 parts of abnormal sound prevention silencing additive; 1-2 parts of a leveling agent; 1-2 parts of a light stabilizer; siO2 2 4-10 parts of matting powder and 30-50 parts of solvent.
Further, the hydroxyl value of the polyester resin A in the component A accounts for 5-7 wt% of the solid component, and the mass average molecular weight is 600-800.
Further, the hydroxyl value of the polyester resin B in the component A accounts for 7-9 wt% of the solid component, and the mass average molecular weight is 1500-3500.
Further, the hydroxyl value of the polyester resin B in the component A accounts for 12.7wt% of the solid component, and the mass average molecular weight is 2500-3000.
Furthermore, the anti-abnormal-sound silencing auxiliary agent in the component A is selected from 1-20 mu m fine-feeling fluff powder and 30-50 mu m coarse-feeling fluff powder.
Further, the anti-abnormal-sound silencing aid is preferably 1-15 mu m Dow corning fluff powder.
Further, siO in the component A 2 The matting powder has a particle size of 9-10 μm, and keeps the luster of the product at 1-1.5GE (6)0 degree) and gives people a super-dumb and fine visual appearance.
Further, the leveling agent in the component A is selected from one or two of an organic silicon leveling agent and an acrylic leveling agent.
Further, the light stabilizer in the component A is one or two of Tinuvin292 and Tinuvin 123.
Furthermore, the solvent in the component A is selected from one or more of methyl isobutyl ketone, butyl acetate, diisobutyl ketone and diacetone alcohol.
Further, the dispersant in the component A is DISPERBYK-162.
Further, the drier in the component A is Mittel 6821
Further, the solvent in the component B is isobutyl acetate.
Further, the mass ratio of the HDI curing agent to the solvent in the component B is 90.
Further, the diluent in the component C is selected from one or more of methyl isobutyl ketone, butyl acetate, diisobutyl ketone and diacetone alcohol.
The second object of the present invention is to provide a method for preparing the anti-abnormal-sound and silencing paint for automobile interior, which comprises:
(1) Preparation of component A: according to the weight parts, adding the polyester resin A, the polyester resin B and 10 parts of solvent under slow stirring, stirring for 10 minutes, sequentially adding the dispersant and the toner under stirring, stirring at a high speed for 45-60 minutes, grinding to a fineness of less than 10 microns, and filtering for later use;
adding the abnormal sound prevention mute assistant, the drier, the flatting agent and the light stabilizer under stirring, dispersing uniformly, adding the SiO2 matting powder under stirring to adjust the luster, filling up the residual solvent, stirring for 30 minutes, filtering by a 200-mesh filter screen, and packaging;
(2) Preparation of component B: adding 10 parts of solvent into a container, stirring the HDI curing agent at a medium speed for 30 minutes until the solid content is 88-92 percent and the viscosity is 3000 +/-750mPa (DIN EN ISO 3219/A.3), detecting NCO, filtering by using a 400-mesh filter screen, and packaging, wherein the isocyano content is 19.3-19.9 percent;
(3) Preparation of component C: stirring the diluent at medium speed for 30 min, filtering with 400 mesh sieve, and packaging, wherein the refractive index is 1.3990-1.4010.
Still another object of the present invention is to provide a use of the above-mentioned anti-squeal coating for automobile interior, comprising: mixing the component A, the component B and the component C according to the weight parts, adjusting the viscosity to Din 4 cup for 13-15 seconds, spraying onto PP material or PC/ABS base material sprayed with primer by using an air spray gun or a robot spray gun with the caliber of 1-1.5mm, leveling for 10-15 minutes at the temperature of 20-25 ℃ with the humidity of less than 75 percent, baking for 40-45 minutes at the temperature of 80-85 ℃ and ensuring that the dry film thickness is 35-44 mu m.
Compared with the prior art, the invention has the following beneficial effects:
the abnormal sound prevention and silencing paint for the automotive interior adopts the matching of two polyester resins and the abnormal sound prevention and silencing additive, and adjusts the types and the weight parts of other additives, so that the standard of a Qiya MS652-14 test can be simultaneously achieved, and the abnormal sound prevention and silencing paint passes the Qiya automobile abnormal sound prevention and silencing test. Can be successfully used as automotive interior coating on a plurality of types in India.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that numerous modifications and adaptations can be made by those skilled in the art without departing from the inventive concepts herein. All falling within the scope of the invention.
The starting materials used in the following examples are all commercially available.
Examples
1. An abnormal sound prevention mute coating for automobile interior decoration comprises the following components in parts by weight:
and (2) component A: 100 portions of
And (B) component: 30 portions of
And (3) component C: 20 portions of
Wherein, the ratio of each component in the component A is shown in the table 1;
TABLE 1
The resin A and the abnormal sound prevention silencing auxiliary agent are matched to endow the surface of the paint film with silky feeling, and the abnormal sound prevention silencing effect is achieved. The combination of resin A and resin B provides excellent chemical resistance.
The remaining ingredients of each sample in this example, with the exception of the components listed in Table 1, are as follows: 2 parts of toner; 2 parts of a dispersing agent; 2 parts of a leveling agent; 2 parts of light stabilizer; siO2 2 5 parts of matting powder; 50 parts of a solvent; 0.5 part of drier.
In component A:
the polyester resin A has a hydroxyl value of 6.2wt% of the solid content and a mass average molecular weight of 700 to 750;
the hydroxyl value of the polyester resin B accounts for 12.7wt% of the solid component, and the mass-average molecular weight is 2500-3000;
the abnormal sound preventing silencing additive is Dow burning 23;
SiO 2 the matting powder is TS 100 matting powder, the particle size is 9.5 mu m, and the gloss of the product is kept between 1 and 1.5GE (60 degrees);
the leveling agent is one of organic silicon, in particular BYK-333;
the light stabilizers are Tiansorb 292 and Tiansorb 1130;
the solvent is methyl isobutyl ketone MIBK and diacetone alcohol DAA, and the mixture ratio is 80:20;
the dispersant is DISPERBYK-162.
In the component B:
the HDI curing agent is 33090 parts of kesichu;
the solvent is 10 parts of isobutyl acetate;
wherein the solid content of the HDI curing agent is 90 percent.
In component C:
the diluent is methyl isobutyl ketone MIBK and diacetone alcohol DAA, and the mixture ratio is 80:20.
2. the preparation method of the abnormal sound prevention and silencing paint for the automotive interior comprises the following steps:
1) Preparation of component A:
preparing color paste with different colors
Respectively adding 10 parts of solvent into different containers, slowly adding the polyester resin A and the polyester resin B under stirring, stirring for 10 minutes, uniformly dispersing, sequentially adding the dispersing agent and different toner under stirring, stirring at a high speed for 45-60 minutes, grinding twice by a grinder to prepare color paste with different colors, requiring the grinding fineness to be below 10 mu m, and filtering for later use;
adding color pastes with different colors into a container according to color requirements, adding the anti-abnormal-sound mute additive, the drier, the flatting agent and the light stabilizer under stirring, adding SiO2 matting powder under stirring after dispersing uniformly for adjusting the gloss, filling the rest solvent, stirring for 30 minutes, adjusting the gloss by color adjustment, filtering with a 200-mesh filter screen after the requirement is met, and packaging;
2) Preparation of component B:
preparation of component B: adding 10 parts of solvent into a container, stirring the HDI curing agent at medium speed for 30 minutes until the solid content is 88-92%, the viscosity is 3000 +/-750mPa (DIN EN ISO 3219/A.3), after NCO detection, the isocyano content is 19.3-19.9%, filtering by a 400-mesh filter screen, and packaging;
3) The preparation method of the component C comprises the following steps:
stirring the raw material diluent in a container at medium speed for 30 minutes, requiring refractive index of 1.3990-1.4010, filtering with a 400-mesh filter screen, and packaging.
3. The implementation method of the abnormal sound prevention and silencing paint for the automotive interior comprises the following steps:
uniformly mixing the component A, the component B and the component C according to the weight ratio, adjusting the mixture to be sprayable viscosity, spraying the mixture onto an ABS substrate by using an air spray gun with the caliber of 1mm, wherein the film thickness is 45 mu m, leveling is carried out for 10-15 minutes at 20 ℃, and baking is carried out for 45 minutes at 80 ℃. And standing for 72 hours at room temperature according to the experimental requirements after the spraying and baking. The finished film had a thickness of 42 μm and a gloss of 1.3GE (60 ℃).
Table 1 also shows the noise intensity results for the sandpaper paint films of each sample, where the closer to the noise intensity of the kraft liner, the closer we believe the anti-squelch strength. We stipulate that the noise intensity is less than 30db, and as can be seen from Table 1, the higher the content of the resin A is, the better the silencing effect is, the more the quantity of the silencing auxiliary agent for preventing abnormal sound is, the smaller the silencing decibel is. The greater the resin B content, the greater the sound-deadening decibel. Therefore, the resin A with the content of 30-40, the resin B with the content of 5-10 and the anti-abnormal-sound auxiliary agent with the content of 5-10 are better formula proportions. Wherein, the proportion of the resin A is 30 parts, the resin B is 5 parts, and the abnormal sound prevention auxiliary agent is 10 parts, and is optimal.
In combination with the test results in table 3, it can be seen that the species with the best muting effect has an unqualified item in the giya MS652-14 test, and cannot meet the test requirements. For example: the formulation ratios of the resin A30, the resin B5 and the elastic modulus aid 10 were only 19db in noise, but the MS652-14 in Table 3 had a defective item.
Next, the sample of the present invention was subjected to the test of Qiya MS 652-14. The test standards for the Hiya MS652-14 are given in Table 2 below.
TABLE 2 test methods and test results
TABLE 3
| Intensity of noise | Resin A30/resin B5 | Resin A30/resin B10 | Resin A40/resin B10 |
| Abnormal sound prevention auxiliary agent: 0 | MS652-14 has an unqualified item | Unqualified noise intensity | Unqualified noise intensity |
| Abnormal sound prevention auxiliary agent: 5 | MS652-14 has an unqualified item | Unqualified noise intensity | Unqualified noise intensity |
| Abnormal sound prevention auxiliary agent: 7 | MS652-14 has an unqualified item | Unqualified noise intensity | All are qualified |
| Abnormal sound prevention auxiliary agent: 10 | MS652-14 has an unqualified item | All are qualified | All are qualified |
From the above examples and test results, it can be seen that in the above examples, 40 parts of resin A, 10 parts of resin B and 10 parts of anti-abnormal-sound auxiliary agent provide an anti-abnormal-sound and mute coating for automobile interior decoration, which meets the requirements of MS652-14 and has the best effect.
Resin A has a good positive effect on the noise intensity test, the more resin, the better the noise intensity test, but the resin itself has certain chemical resistance defects. Resin B, while having a negative impact on the noise intensity test, had a positive effect on the resistance test in MS 652-14. As can be seen in Table 3, resin A30 parts, resin B5 parts, and MS652-14 have failed items. 30 parts of resin A, 10 parts of resin B and MS652-14 all pass the items, but some fail the noise test. By increasing the content of the resin A to 40 parts and the content of the resin B to 10 parts, we can see that the MS652-14 can still be met, and the partial noise test is not qualified. By combining the data in the table 1, the more the anti-abnormal-sound auxiliary agent is, the better the anti-noise effect is, so that the case of 40 parts of resin A, 10 parts of resin B and 10 parts of anti-abnormal-sound auxiliary agent can simultaneously meet the MS652-14 and noise tests.
Comparative example
Patent CN109535954A discloses a soft-touch elastic coating for automobile interior decoration, which comprises the following components in percentage by weight: and (2) component A:
50 parts of resin A; 10 parts of resin B; 0.3 part of elastic assistant A; elastic auxiliary agent B2 parts; a toner 5; a dispersant 5; a leveling agent 2; an ultraviolet absorber 2; siO2 matting powder 6; 13 parts of a solvent;
and (B) component: HDI curing agent 25
And (3) component C: a diluent 40.
The abnormal sound prevention and silencing coating for the automotive interior disclosed by the embodiment of the invention comprises the following components in percentage by weight:
and (2) component A:
40 parts of resin A; 10 parts of resin B; 10 parts of abnormal sound prevention auxiliary agent; 2 parts of toner; 2 parts of a dispersing agent; 2 parts of a leveling agent; 2 parts of light stabilizer; 5 parts of SiO2 matting powder; 50 parts of a solvent; 0.5 part of drier.
And (B) component:
the HDI curing agent is 33090 parts of kesichu;
the solvent is 10 parts of isobutyl acetate;
wherein the solid content of the HDI curing agent is 90 percent.
And (3) component C:
the diluent is methyl isobutyl ketone MIBK and diacetone alcohol DAA, and the mixture ratio is 80:20.
table 4 comparison of performance tests
| Test item | Decorative paint coating | Soft touch elastic coating | Abnormal sound prevention mute coating |
| Noise proof strength | 42 db | 32db | 23db |
| Resistance test | The sun cream resistance test is qualified | Unqualified sunscreen cream test | The sun cream resistance test is qualified |
| Antibacterial property | Qualified | Qualified | Qualified |
| Scraping with five fingers | 3N clear trace | 8N has no obvious trace | 10N has no obvious trace |
| Degree of finger slip | Smooth and comfortable | Strong damping sense | Smooth and comfortable |
Compared with the resin in the patent CN109535954A, the abnormal sound-proof mute coating for the automobile interior prepared by the invention has more excellent abnormal sound-proof and mute characteristics, wherein compared with the resin in the patent CN109535954A, the resin A has better scratch resistance and smoother surface, and the coating can absorb scratch energy through certain deformation, reduce the noise stroke and achieve the abnormal sound-proof mute effect. Meanwhile, due to the addition of the abnormal sound prevention mute additive, the noise is reduced better, and the abnormal sound prevention and mute effects are achieved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be appreciated by those skilled in the art that the foregoing description is only illustrative of the principles of the invention, and that various changes and modifications can be made without departing from the spirit and scope of the invention, which is intended to be within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. An anti-abnormal sound silencing coating for automobile interior decoration comprises the following components in parts by weight: 100 parts of component A, 25-35 parts of component B and 10-20 parts of component C;
the component A comprises the following components in parts by weight: 20-40 parts of polycarbonate resin A; 5-10 parts of polycarbonate resin B; 3-5 parts of toner; 1-3 parts of a dispersant; 0.5-1 part of drier; 7-10 parts of abnormal sound prevention silencing additive; 1-2 parts of a leveling agent; 1-2 parts of a light stabilizer; siO2 2 4-10 parts of matting powder and 30-50 parts of solvent; wherein the hydroxyl value of the polycarbonate resin A in the component A accounts for 6.2wt% of the solid component, and the mass average molecular weight is 700-750; the drier is Mittel 6821; the weight ratio of the polycarbonate resin A to the polycarbonate resin B is 40;
the hydroxyl value of the polycarbonate resin B in the component A accounts for 12.7wt% of the solid component, and the mass average molecular weight is 2500-3000;
the mute additive for preventing abnormal sound in the component A is Dow burning 23;
the component B comprises an HDI curing agent and a solvent, wherein the mass ratio of the HDI curing agent to the solvent is 85-95:5-15;
the component C is a diluent.
2. The coating material for preventing abnormal noise and silence for automotive interiors according to claim 1, characterized in that: the component A comprises the following components in parts by weight: 30-40 parts of polycarbonate resin A; 10 parts of polycarbonate resin B; wherein, 3-5 parts of toner; 1-3 parts of a dispersant; 0.5-1 part of drier; 7-10 parts of abnormal sound prevention silencing additive; 1-2 parts of a leveling agent; 1-2 parts of a light stabilizer; siO2 2 4-10 parts of matting powder and 30-50 parts of solvent.
3. An anti-squeal coating for automotive interiors according to claim 1 or 2, characterized in that: siO in the component A 2 The matting powder has a particle size of 9-10 μm, and keeps the gloss of the product at 60 ℃ under 1-1.5 GE.
4. The abnormal sound-proof mute coating for the automobile interior according to claim 1 or 2, characterized in that: the leveling agent in the component A is selected from one or two of an organic silicon leveling agent and an acrylic leveling agent.
5. The abnormal sound-proof mute coating for the automobile interior according to claim 1 or 2, characterized in that: the light stabilizer in the component A is one or two of Tinuvin292 and Tinuvin 123.
6. An anti-squeal coating for automotive interiors according to claim 1 or 2, characterized in that: the solvent in the component B is isobutyl acetate.
7. An anti-squeal coating for automotive interiors according to claim 1 or 2, characterized in that: the diluent in the component C is selected from one or more of methyl isobutyl ketone, butyl acetate, diisobutyl ketone and diacetone alcohol.
8. The method for preparing the abnormal-sound-proof silencing paint for automobile interiors according to any one of claims 1 to 7, comprising:
(1) Preparation of component A: according to the weight parts, adding the polyester resin A, the polyester resin B and 10 parts of solvent under slow stirring, stirring for 10 minutes, sequentially adding the dispersant and the toner under stirring, stirring at a high speed for 45-60 minutes, grinding to a fineness of less than 10 microns, and filtering for later use;
adding the abnormal sound prevention mute assistant, the drier, the flatting agent and the light stabilizer under stirring, dispersing uniformly, adding the SiO2 matting powder under stirring to adjust the luster, finally supplementing the residual solvent, stirring for 30 minutes, filtering by a 200-mesh filter screen, and packaging;
(2) Preparation of component B: adding a solvent into a container, stirring the HDI curing agent at a medium speed for 30 minutes until the solid content is 88-92 percent, the viscosity is 3000 +/-750 mPa & s, after NCO detection, the content of isocyanate group is 19.3-19.9 percent, filtering by using a 400-mesh filter screen, and packaging;
(3) Preparation of component C: stirring the diluent at medium speed for 30 min, filtering with 400 mesh sieve, and packaging, wherein the refractive index is 1.3990-1.4010.
9. Use of the anti-squeal coating for automobile interiors according to any of claims 1 to 7, comprising: mixing the component A, the component B and the component C according to the parts by weight, adjusting the viscosity to Din 4 cup for 13-15 seconds, spraying the mixture onto a PP material or a PC/ABS base material sprayed with a primer by using an air spray gun or a mechanical hand spray gun with the caliber of 1-1.5mm, leveling the mixture at the temperature of 20-25 ℃ for 10-15 minutes with the humidity of less than 75%, baking the mixture at the temperature of 80-85 ℃ for 40-45 minutes, and enabling the dry film thickness to be 35-44 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306789.XA CN113980568B (en) | 2021-11-05 | 2021-11-05 | Abnormal sound prevention and silencing coating for automotive interior and preparation and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306789.XA CN113980568B (en) | 2021-11-05 | 2021-11-05 | Abnormal sound prevention and silencing coating for automotive interior and preparation and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113980568A CN113980568A (en) | 2022-01-28 |
| CN113980568B true CN113980568B (en) | 2023-01-03 |
Family
ID=79746742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111306789.XA Active CN113980568B (en) | 2021-11-05 | 2021-11-05 | Abnormal sound prevention and silencing coating for automotive interior and preparation and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113980568B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10340011A1 (en) * | 2003-08-29 | 2005-04-07 | Bayerische Motoren Werke Ag | Sound-absorbing coatings, process for their preparation and their use |
| CN101942267A (en) * | 2009-07-08 | 2011-01-12 | 东莞嘉卓成化工科技有限公司 | Single track elastic coating and manufacturing method thereof |
| CN102719183A (en) * | 2012-06-26 | 2012-10-10 | 恒昌涂料（惠阳）有限公司 | High-weather-resistant double-component elastic paint |
| CN109535954A (en) * | 2017-07-25 | 2019-03-29 | 佩特化工(上海)有限公司 | A kind of soft touching elastic coating for automobile interiors |
-
2021
- 2021-11-05 CN CN202111306789.XA patent/CN113980568B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10340011A1 (en) * | 2003-08-29 | 2005-04-07 | Bayerische Motoren Werke Ag | Sound-absorbing coatings, process for their preparation and their use |
| CN101942267A (en) * | 2009-07-08 | 2011-01-12 | 东莞嘉卓成化工科技有限公司 | Single track elastic coating and manufacturing method thereof |
| CN102719183A (en) * | 2012-06-26 | 2012-10-10 | 恒昌涂料（惠阳）有限公司 | High-weather-resistant double-component elastic paint |
| CN109535954A (en) * | 2017-07-25 | 2019-03-29 | 佩特化工(上海)有限公司 | A kind of soft touching elastic coating for automobile interiors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113980568A (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017175468A1 (en) | Bright pigment dispersion and method for forming multilayer coating film | |
| CN109535954B (en) | Soft-touch elastic coating for automotive interior | |
| CN107057547B (en) | Acrylic acid-polyurethane type finishing varnish composition, preparation method and application thereof | |
| WO2019142639A1 (en) | Method for forming multilayer coating film | |
| WO2017111112A1 (en) | Multilayer coating film forming method | |
| JP7305545B2 (en) | Multilayer coating film forming method | |
| WO2012086659A1 (en) | Resin substrate with a hard coat film and production method thereof | |
| CN110484103B (en) | Polyester elastic super-soft matte roller coating paint and preparation method and application thereof | |
| CN114410175B (en) | High-wear-resistance coating for automotive upholstery and preparation method thereof | |
| WO2019139138A1 (en) | Method for forming multilayer coating film | |
| WO2019054499A1 (en) | Method for forming multilayer coating film | |
| CN110724406B (en) | Modified flaky silicon dioxide, scratch-resistant easy-to-clean hand feeling coating and preparation method thereof | |
| CN110894398A (en) | Self-extinction waterborne polyurethane coating and preparation method thereof | |
| CN112876958A (en) | Water-based leather finishing agent and application thereof | |
| CN113278350B (en) | Matte varnish and application thereof | |
| CN113980568B (en) | Abnormal sound prevention and silencing coating for automotive interior and preparation and application thereof | |
| CN104946116B (en) | Self-repair polyurethane matt paint and preparation method thereof | |
| KR20120003690A (en) | Highly scratch resistant 1k clearcoats composition using silane modified blocked isocynate for automotive | |
| WO2020067459A1 (en) | Coating material composition, method for forming coating film, and coated article | |
| CN109486306B (en) | High-gloss automobile metal hub paint with film formed by one-time coating and preparation method thereof | |
| CN112482048A (en) | Organic silicon polycarbonate type polyurethane synthetic leather and preparation method thereof | |
| CN108977032B (en) | Water-based dual-component high-gloss finish paint for helmet and preparation method thereof | |
| CN113845831B (en) | Varnish composition | |
| CN116120830A (en) | Water-based coating compositions and related products and methods | |
| CN116042074A (en) | Two-component coating composition |
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 |