Painted article and method of making the same, automobile

Abstract

The present application relates to a kind of lacquer products and its preparation method, automobile.The lacquer product includes base material and the coarse ash layer, fine ash layer, clean ash layer, color paint layer, decorative layer and transparent paint layer sequentially stacked on base material;The coating of coarse ash layer includes coarse lime and raw lacquer, and the particle size of coarse lime is 40~100 mesh.The coating of fine ash layer includes first fine lime, raw lacquer and electrically conductive and thermally conductive material, and the particle size of first fine lime is 100~180 mesh.The coating of clean ash layer includes second fine lime, raw lacquer and electrically conductive and thermally conductive material, and the particle size of first fine lime is 200~240 mesh.Electrically conductive and thermally conductive material in fine ash layer and clean ash layer independently includes one or more of graphite powder, graphene and carbon nanotube.The above-mentioned lacquer product improves each ash layer on base material, and sequentially stacked color paint layer, decorative layer and transparent paint layer, give lacquer beautiful appearance, so that lacquer product has good heat resistance, cold resistance and faster heating performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, in particular to a paint product, a preparation method thereof and an automobile. BACKGROUND

[0002] In the field of automobile technology, the occupants have a heating demand in the automobile cabin. In general, air conditioning is used to achieve this, and some use direct contact with parts to achieve heating. For example, in cold weather, heated seats can quickly raise the temperature of the seat surface, providing a warm and comfortable riding experience for the occupants. Especially for people who drive or ride for a long time, heated seats can alleviate the discomfort caused by cold and reduce muscle tension.

[0003] In addition, to make the heating in the automobile cabin more rapid in cold winter, improve the experience and comfort of the occupants, heating function can be added to the parts around the occupants. For example, the heating function can be added to some areas of the interior panel of the door, such as the upper part of the door panel, the armrest, and the like, as well as the armrest of the auxiliary panel, the armrest of the rear seat, and the steering wheel. In this way, when the door is opened or leaned against the door, a warm touch can be provided. Therefore, the heat resistance, cold resistance and heating performance of the parts in these areas are the technical problems that researchers are concerned about. SUMMARY

[0004] Therefore, it is necessary to provide a paint product with good heat resistance, cold resistance and rapid heating, a preparation method thereof and an automobile.

[0005] One aspect of the present application provides a paint product, comprising a substrate and a coarse ash layer, a fine ash layer, a clean ash layer, a color paint layer, a decorative layer and a transparent paint layer sequentially stacked on the substrate.

[0006] The coating of the coarse ash layer comprises coarse lime and raw lacquer, and the particle size of the coarse lime is 40-100 mesh. The coating of the fine ash layer comprises first fine lime, raw lacquer and electrically and thermally conductive material, and the particle size of the first fine lime is 100-180 mesh. The coating of the clean ash layer comprises second fine lime, raw lacquer and electrically and thermally conductive material, and the particle size of the first fine lime is 200-240 mesh. The electrically and thermally conductive material in the fine ash layer and the clean ash layer each independently comprises one or more of graphite powder, graphene and carbon nanotubes.

[0007] The lacquer product improves the ash layer on the substrate, specifically adopts specific coating layering to form a coarse ash layer, a fine ash layer and a clean ash layer arranged in sequence, and the particle size of the lime ash in the coarse ash layer, the fine ash layer and the clean ash layer gradually decreases, so that the surface can be better flattened, and the occurrence of cracks and other adverse effects of the ash layer can be avoided, and the adhesion of the subsequent paint layer can be ensured; by using specific mesh lime ash and conductive and heat-conductive materials in the fine ash layer and the clean ash layer, the heat-conductive performance, heat resistance and cold resistance and other environmental resistance can be improved, and by arranging the color paint layer, the decorative layer and the transparent paint layer in sequence, the lacquer is endowed with aesthetic properties.

[0008] The lacquer product has good environmental resistance, especially fast heating performance, and can be used to meet the heating needs of parts of the inner door panel of the car, such as the upper part of the door panel, the handrail, and the like, as well as the handrail of the auxiliary panel, the handrail of the rear seat, the steering wheel and the like, so that the lacquer product can have both aesthetic and practical properties.

[0009] In some embodiments, the particle size of the graphite powder is 200-240 mesh; and / or,

[0010] The flake diameter of the graphene is 1-20 pm; and / or,

[0011] The diameter of the carbon nanotube is 5-30 nm, and the length is 5-200 pm.

[0012] In some embodiments, in the coating of the coarse ash layer, the weight ratio of the coarse lime ash to the raw lacquer is (1-2):1.

[0013] In some embodiments, in the coating of the fine ash layer, the weight ratio of the first fine lime ash, the raw lacquer and the conductive and heat-conductive material is (1-2):1:(0.1-0.5).

[0014] In some embodiments, in the coating of the clean ash layer, the weight ratio of the second fine lime ash, the raw lacquer and the conductive and heat-conductive material is (1-2):1:(0.1-0.5).

[0015] In some embodiments, the coating of the coarse ash layer, the fine ash layer and the clean ash layer each independently further comprises a solvent, which is water or kerosene.

[0016] In some embodiments, the weight ratio of the solvent in the coating of the coarse ash layer, the fine ash layer and the clean ash layer to the raw lacquer in the corresponding coating is (0.1-0.5):1.

[0017] In some embodiments, one or more of the following conditions is met:

[0018] (1) the thickness of the coarse ash layer is 0.2mm-0.6mm;

[0019] (2) the thickness of the fine ash layer is 0.1mm-0.5mm;

[0020] (3) the thickness of the clean ash layer is 0.1mm-0.3mm;

[0021] (4) the thickness of the color paint layer is 10μm-50μm;

[0022] (5) the thickness of the decorative layer is 5μm-500μm;

[0023] (6) the thickness of the transparent paint layer is 100μm-500μm.

[0024] In some embodiments, one or more of the following conditions are met:

[0025] (1) the decorative layer is formed by one or more of the following processes: color drawing, gold drawing, gold halo, gold and silver drawing, and inlaying;

[0026] (2) the material of the substrate comprises one or more of the following: metal material and alloy material.

[0027] In another aspect of the present application, a method for preparing a painted product is provided, the painted product being any of the above-described painted products, the method comprising the following steps:

[0028] coating the coarse ash layer on the substrate using the coating material for the coarse ash layer to form the coarse ash layer;

[0029] coating the fine ash layer on the coarse ash layer using the coating material for the fine ash layer to form the fine ash layer;

[0030] forming the clean ash layer on the fine ash layer using the coating material for the clean ash layer;

[0031] sequentially forming the color paint layer, the decorative layer and the transparent paint layer on the clean ash layer.

[0032] In another aspect of the present application, a vehicle comprising any of the above-described painted products is provided. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present application, the present application will be described more fully below, and preferred embodiments of the present application will be given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. It should be understood that the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0035] "ranges" disclosed herein can be defined with endpoints by selecting a lower limit and an upper limit and defining the range as the area between the lower limit and the upper limit. Ranges can thus include endpoints, include excluded endpoints, or be either inclusive or exclusive of an endpoint, and there is no limitation on the inclusivity or exclusivity of any endpoint, and any such endpoints can be combined in any manner. For example, if ranges of 60-120 and 80-110 are listed, it is understood that ranges of 60-110 and 80-120 are also contemplated. Also, if a minimum range value of 1 and 2 are listed, and if a maximum range value of 3, 4, and 5 are also listed, then the following ranges are all contemplated: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5. In this application, a numerical range "a-b" indicates a shorthand way of describing all real numbers between a and b, inclusive of a and b, unless otherwise noted. For example, the numerical range "0-5" indicates that all real numbers between 0 and 5 have been listed herein, and "0-5" is a shorthand way of describing those numerical combinations. Also, when a parameter is stated to be an integer ≥ 2, it is equivalent to disclose that the parameter is, for example, an integer of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc. For example, when a parameter is stated to be an integer selected from "2-10", it is equivalent to list the integers 2, 3, 4, 5, 6, 7, 8, 9, and 10.

[0036] In addition, the terms "first", "second", etc. are used herein only to describe the different features and do not imply or suggest relative importance or a number of the features indicated. Thus, the features defined with "first", "second", etc. can include at least one of the features explicitly or implicitly. In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0037] In the present application, "a plurality of", "a plurality of kinds", etc. refer to more than two or equal to two, unless otherwise specifically limited. For example, "one or more" means one or more than two.

[0038] All embodiments and optional embodiments of the present application can be combined with each other to form new technical solutions, if not specifically stated.

[0039] Reference to an "embodiment" in this document means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment or implementation of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein can be combined with each other in their various permutations and combinations. Reference to an "implementation" herein is understood similarly.

[0040] It is understood by those skilled in the art that the order of recitation of steps in methods of various implementations or embodiments does not imply strict order of execution of these steps and impose any limitation on the implementation process, and the detailed order of execution of the steps should be determined by their functions and possible inherent logic. If not specifically stated, all steps of the application can be performed in sequence or randomly, and preferably in sequence. For example, the method comprises steps (a) and (b), which means that the method can comprise steps (a) and (b) in sequence, or steps (b) and (a) in sequence. For example, the method can also comprise step (c), which means that step (c) can be added to the method in any order, for example, the method can comprise steps (a), (b) and (c), or steps (a), (c) and (b), or steps (c), (a) and (b), etc.

[0041] In the present application, A (such as B) means that B is one non-limiting example of A, and it is understood that A is not limited to B.

[0042] In the present application, "optionally", "optional" and "optional" mean that it can or can not be present, that is, it means to select from either of the two parallel schemes "have" or "have not". If there are multiple "options" in a technical solution, and there is no special statement and no contradictory relationship or mutual restriction, each "option" is independent.

[0043] An embodiment of the present application provides a lacquer product, comprising a substrate and a coarse ash layer, a fine ash layer, a clean ash layer, a color paint layer, a decorative layer and a transparent paint layer which are sequentially stacked on the substrate.

[0044] The coating of the coarse ash layer comprises coarse lime and raw lacquer, and the particle size of the coarse lime is 40-100 mesh. The coating of the fine ash layer comprises first fine lime, raw lacquer and electrically and thermally conductive material, and the particle size of the first fine lime is 100-180 mesh. The coating of the clean ash layer comprises second fine lime, raw lacquer and electrically and thermally conductive material, and the particle size of the first fine lime is 200-240 mesh. The electrically and thermally conductive material in the fine ash layer and the clean ash layer each independently comprises one or more of graphite powder, graphene and carbon nanotubes.

[0045] The lacquer product improves the ash layer on the substrate, specifically uses specific coating layers to form a coarse ash layer, a fine ash layer and a clean ash layer arranged in sequence, and the particle size of the lime ash in the coarse ash layer, the fine ash layer and the clean ash layer gradually decreases, so that the surface can be better flattened, and the occurrence of cracks and other adverse effects of the ash layer can be avoided, and the adhesion of the subsequent paint layer can be ensured; by using specific mesh lime ash and conductive and heat-conductive materials in the fine ash layer and the clean ash layer, the heat-conductive performance, heat resistance and cold resistance and other environmental resistance can be improved, and by arranging the color paint layer, the decorative layer and the transparent paint layer in sequence, the lacquer is given aesthetic properties. Lacquer belongs to intangible cultural heritage, and the lacquer product applied to the lacquer product on the car gives it deep cultural value and artistic charm.

[0046] The lacquer product has good environmental resistance, especially fast heating performance, and can be used to meet the heating needs of parts of the inner door panel of the car, such as the upper part of the door panel, the handrail, and other areas such as the handrail of the auxiliary panel, the handrail of the rear seat, the steering wheel, and the like. Thus, it can have both aesthetic and practical dual characteristics.

[0047] As an example, the particle size of the coarse lime ash can be 40 mesh, 45 mesh, 50 mesh, 60 mesh, 80 mesh, 100 mesh, or a range formed by any two of the above point values as end values. The particle size of the first fine lime ash can be 100 mesh, 120 mesh, 140 mesh, 160 mesh, 170 mesh, 180 mesh, or a range formed by any two of the above point values as end values. The particle size of the first fine lime ash can be 200 mesh, 230 mesh, 240 mesh, or a range formed by any two of the above point values as end values.

[0048] In some embodiments, the weight ratio of coarse lime ash to raw lacquer in the coating of the coarse ash layer is (1-2):1, for example, 1:1, 1:1.5, 2:1, or a range formed by any two of the above point values as end values, and the like below.

[0049] Further, the coarse ash layer and its coating can or can not include conductive and heat-conductive materials. Since the coarse ash layer is adjacent to or directly contacts the substrate, the conductive and heat-conductive materials arranged in the coarse ash layer will cause the substrate to absorb a large amount of heat, thereby affecting the heating performance of the lacquer product. Preferably, the coarse ash layer and its coating do not include conductive and heat-conductive materials. Further, the coarse ash layer is composed of coarse lime ash and raw lacquer.

[0050] In some embodiments, the weight ratio of the first fine lime, raw lacquer and electrically and thermally conductive material in the fine ash layer coating is (1-2):1:(0.1-0.5). For example, the weight ratio of the first fine lime, raw lacquer and electrically and thermally conductive material in the fine ash layer coating can be 1:1:0.1, 1:1:0.2, 1:1:0.3, 1:1:0.4, 1:1:0.5, 1.5:1:0.1, 1.5:1:0.2, 1.5:1:0.3, 1.5:1:0.4, 1.5:1:0.5, 2:1:0.1, 2:1:0.2, 2:1:0.3, 2:1:0.4, 2:1:0.5, or a range formed by any two of the above point values as the end values, and the like hereinafter.

[0051] Further, the weight ratio of the first fine lime, raw lacquer and electrically and thermally conductive material in the fine ash layer coating can be 2:1:(0.1-0.5), or (1-2):1:(0.2-0.4), or 2:1:(0.2-0.4). Within this range, the lacquer product prepared has faster heating and temperature rising performance on the basis of good environmental resistance such as heat resistance, cold resistance and cold-heat alternating resistance.

[0052] In some embodiments, the weight ratio of the second fine lime, raw lacquer and electrically and thermally conductive material in the ash removal layer coating is (1-2):1:(0.1-0.5). For example, the weight ratio of the second fine lime, raw lacquer and electrically and thermally conductive material in the ash removal layer coating can be 1:1:0.1, 1:1:0.2, 1:1:0.3, 1:1:0.4, 1:1:0.5, 1.5:1:0.1, 1.5:1:0.2, 1.5:1:0.3, 1.5:1:0.4, 1.5:1:0.5, 2:1:0.1, 2:1:0.2, 2:1:0.3, 2:1:0.4, 2:1:0.5, or a range formed by any two of the above point values as the end values, and the like hereinafter.

[0053] Further, the weight ratio of the second fine lime, raw lacquer and electrically and thermally conductive material in the ash removal layer coating can be 2:1:(0.1-0.5), or (1-2):1:(0.2-0.4), or 2:1:(0.2-0.4). Within this range, the lacquer product prepared has faster heating and temperature rising performance on the basis of good environmental resistance such as heat resistance, cold resistance and cold-heat alternating resistance.

[0054] In some embodiments, the particle size of the graphite powder is 200-240 mesh, for example, it can be 200 mesh, 230 mesh, 240 mesh, or a range formed by any two of the above point values as the end values.

[0055] In some embodiments, the flake diameter of the graphene is 1 μm to 20 μm, for example, 1 μm, 2 μm, 5 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm, or a range defined by any two of the above values as the end values.

[0056] In some embodiments, the diameter of the carbon nanotube is 5 nm to 30 nm, and the length is 5 μm to 200 μm. For example, the diameter of the carbon nanotube is 10 nm, and the length is 100 μm.

[0057] Further, the conductive and heat-conductive material in the fine ash layer and the clean ash layer preferably includes graphene. Compared with other conductive and heat-conductive materials, the paint product prepared by using graphene has faster heating and temperature rising performance on the basis of good environmental resistance such as heat resistance, cold resistance, and cold-heat alternating resistance.

[0058] In some embodiments, the paint of the coarse ash layer, the fine ash layer, and the clean ash layer each independently further includes a solvent, which is water or kerosene. The addition of water can adjust the consistency of the paint and ash mixture, better coating and operation, and control the drying speed. The addition of kerosene can prevent sticking, make the scraping smoother, and control the drying speed.

[0059] Further, the weight ratio of the solvent in the paint of the coarse ash layer, the fine ash layer, and the clean ash layer to the raw lacquer in the corresponding paint is (0.1-0.5):1, for example, 0.1:1, 0.2:1, 0.3:1, 0.4:1, 0.5:1, or a range defined by any two of the above values as the end values.

[0060] In some embodiments, the thickness of the coarse ash layer is 0.2 mm to 0.6 mm, for example, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, or a range defined by any two of the above values as the end values.

[0061] In some embodiments, the thickness of the fine ash layer is 0.1 mm to 0.5 mm, for example, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, or a range defined by any two of the above values as the end values.

[0062] In some embodiments, the thickness of the clean ash layer is 0.1 mm to 0.3 mm, for example, 0.1 mm, 0.2 mm, 0.3 mm, or a range defined by any two of the above values as the end values.

[0063] In some embodiments, the color paint layer has a thickness of 10-50 μm, for example, 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, or a range defined by any two of the above values as the end values.

[0064] In some embodiments, the decorative layer has a thickness of several microns to several hundred microns, for example, 5-500 μm, depending on the decorative material and the technique.

[0065] In some embodiments, the decorative layer is formed by one or more of the following processes: color painting, gold drawing, gold shading, gold and silver color painting, and inlaying. For example, the decorative layer is formed by color painting and gold drawing.

[0066] In some embodiments, the transparent paint layer has a thickness of 100-500 μm, for example, 100 μm, 200 μm, 300 μm, 400 μm, 500 μm, or a range defined by any two of the above values as the end values.

[0067] In some embodiments, the material of the substrate includes one or more of metal materials and alloy materials. In addition to the metal materials and alloy materials, the material of the substrate can also include plastic materials and the like, for example, a plastic layer is laminated and attached to the metal material or the alloy material.

[0068] Further, the paint product made of the substrate has many applications in the car, for example, in the door panel, the side panel, the armrest of the rear seat, the steering wheel, and the like.

[0069] In another aspect of the present application, a method for preparing a paint product is provided, the paint product being any of the above paint products, and the method comprising the following steps S10-S40.

[0070] S10, forming a rough layer on the substrate by applying a coating of the rough layer.

[0071] In some embodiments, before step S10, a step of polishing the substrate is further included, which can be performed by hand, mechanically, or a combination of the two. The polishing can be performed in multiple passes, and the sandpaper is used from coarse to fine. For example, the coarse sandpaper can be selected from #80 and above, and the fine sandpaper can be selected from #400 and above. In this way, the adhesion of the rough layer to the surface of the substrate is improved, and the environmental resistance such as heat resistance and cold resistance is improved.

[0072] In some embodiments, since the paint product is used for interior decoration of a car, in order to prevent dimensional deformation of the parts under various working conditions, the substrate is made of a metal alloy substrate or a metal material substrate. Understandably, the back surface of the substrate can also be provided with some other material layers.

[0073] In some embodiments, the coating includes one or more of various known coating methods, such as brushing, spraying, squeegeeing, and the like. After the respective coating is applied, it is allowed to dry in the shade, and after drying, sanding is performed, using sandpaper of #400 or higher. Similar drying and sanding procedures are used after the application of the fine-grit layer coating and the clean-grit layer coating, as described below.

[0074] The coating for the coarse-grit layer has the same features as described above, and will not be repeated here.

[0075] S20, a fine-grit layer is formed on the coarse-grit layer using a fine-grit layer coating.

[0076] The coating for the fine-grit layer has the same features as described above, and will not be repeated here.

[0077] S30, a clean-grit layer is formed on the fine-grit layer using a clean-grit layer coating.

[0078] The coating for the clean-grit layer has the same features as described above, and will not be repeated here.

[0079] S40, a color paint layer, a decorative layer, and a clear paint layer are sequentially formed on the clean-grit layer.

[0080] In some embodiments, the color paint layer and the clear paint layer can also be formed by coating using the respective coatings. After the respective coating is applied, it is allowed to dry in the shade.

[0081] In some embodiments, after the clear paint layer is formed, a burnishing step is further included for the clear paint layer.

[0082] In another aspect of the present application, a car is provided, including the paint product of any of the above.

[0083] The present application combines the traditional lacquer craft with the application in the automotive industry, and applies the paint product to the car, which not only expands the application range of lacquer, but also obtains a paint product with both aesthetic and practical characteristics.

[0084] In order to make the purpose, technical solutions and advantages of the present application more concise and clear, the present application is described by the following specific embodiments, but the present application is not limited to these embodiments. The embodiments described below are only better embodiments of the present application, which can be used to describe the present application, and cannot be understood as limiting the scope of the present application. It should be noted that any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0085] In order to better illustrate the present application, the content of the present application is further described below in combination with embodiments. The following are specific embodiments.

[0086] Embodiment 1:

[0087] 1. Selecting zinc alloy as the base material, mechanically polishing the main surface of the base material, and manually polishing the edge, which can be polished in multiple passes, with sandpaper from coarse to fine, coarse sandpaper #80 (# represents mesh number), and fine sandpaper #400.

[0088] 2. Dusting. On the polished base material, sequentially apply coarse dust paint, fine dust paint, and clean dust paint to form a coarse dust layer, a fine dust layer, and a clean dust layer arranged in layers, with thicknesses of 0.5 mm, 0.3 mm, and 0.2 mm, respectively.

[0089] After each layer is applied, it is dried in a cool place, and then sanded with #400 sandpaper.

[0090] The coarse dust paint is a mixture of coarse lime and raw lacquer in a weight ratio of 1:1; the particle size of the coarse lime is 80 mesh.

[0091] The fine dust paint is a mixture of first fine lime, raw lacquer, and graphene in a weight ratio of 1:1:0.1; the particle size of the first fine lime is 160 mesh, and the flake size of the graphene is 10 μm.

[0092] The clean dust paint is a mixture of second fine lime, raw lacquer, and graphene in a weight ratio of 1:1:0.1; the particle size of the second fine lime is 200 mesh, and the flake size of the graphene is 10 μm.

[0093] 3. Primer (color paint). Apply the prepared color paint by brushing or spraying on the surface after dusting, as the base color of the decoration, and dry it in a cool place after brushing or spraying to form a color paint layer with a thickness of 40 μm.

[0094] 4. Decoration. Decorate using color drawing and gold drawing to form a decoration layer with a thickness of 10 μm.

[0095] 5. Apply transparent paint and polish. Apply the diluted raw lacquer evenly on the surface of the decoration layer by brushing or spraying, and dry it in a cool place after brushing or spraying, then polish it, repeat 2 more times, and form a transparent paint layer with a thickness of 300 μm.

[0096] Example 2:

[0097] 1. Selecting zinc alloy as the base material, mechanically polishing the main surface of the base material, and manually polishing the edge, which can be polished in multiple passes, with sandpaper from coarse to fine, coarse sandpaper #80 (# represents mesh number), and fine sandpaper #400.

[0098] 2. Dusting. On the polished base material, sequentially apply coarse dust paint, fine dust paint, and clean dust paint to form a coarse dust layer, a fine dust layer, and a clean dust layer arranged in layers, with thicknesses of 0.5 mm, 0.3 mm, and 0.2 mm, respectively.

[0099] After each layer of scraping, it is dried in the shade, and then sanded with sandpaper #400.

[0100] The coarse ash paint is mixed by 2:1 of coarse lime and raw lacquer by weight, and 0.2:1 of kerosene by mass.

[0101] The fine ash paint is mixed by 2:1:0.5 of first fine lime, raw lacquer and graphene by weight, and 0.2:1 of kerosene by mass; the first fine lime has a particle size of 160 mesh, and the graphene has a sheet size of 10 μm.

[0102] The clean ash paint is mixed by 2:1:0.5 of second fine lime, raw lacquer and graphene by weight, and 0.2:1 of kerosene by mass; the second fine lime has a particle size of 200 mesh, and the graphene has a sheet size of 10 μm.

[0103] 3. The base paint (color paint) is brushed or sprayed on the surface after ashing, which is the base color of the decoration, and is dried in the shade after brushing or spraying, forming a color paint layer with a thickness of 40 μm.

[0104] 4. Decoration. The decoration is performed by color drawing and gold drawing, forming a decoration layer with a thickness of 10 μm.

[0105] 5. Transparent paint and gloss. The diluted raw lacquer is uniformly brushed or sprayed on the surface of the decoration layer, and is dried in the shade after brushing or spraying, and then polished, and then repeated twice, forming a transparent paint layer with a thickness of 300 μm.

[0106] Comparative Example 1

[0107] Comparative Example 1 is basically the same as Example 2, except that the graphene is omitted in the fine ash paint and clean ash paint in step 2 of Comparative Example 1. The specific steps are as follows:

[0108] 1. Selecting zinc alloy as the base material, mechanically polishing the main surface of the base material, and manually polishing the edge, which can be polished in multiple passes, and the sandpaper is from coarse to fine, with coarse sandpaper #80 (# represents mesh) and fine sandpaper #400.

[0109] 2. Ashing. On the polished base material, the coarse ash paint, fine ash paint and clean ash paint are sequentially scraped to form the coarse ash layer, fine ash layer and clean ash layer arranged in layers.

[0110] After each layer of scraping, it is dried in the shade, and then sanded with sandpaper #400.

[0111] The coarse ash paint is mixed by coarse lime, raw lacquer with a weight ratio of 2:1, and kerosene is added with a mass ratio of 0.2:1.

[0112] The fine ash paint is mixed by the first fine lime and raw lacquer with a weight ratio of 2:1, and kerosene is added with a mass ratio of 0.2:1.

[0113] The clean ash paint is mixed by the second fine lime and raw lacquer with a weight ratio of 2:1, and kerosene is added with a mass ratio of 0.2:1.

[0114] 3. The base paint (color paint) is brushed or sprayed on the surface after the ash coating, which is the base color of the decoration, and is dried in the shade after brushing or spraying to form a color paint layer.

[0115] 4. Decoration. The decoration is performed by color drawing and gold drawing to form a decoration layer.

[0116] 5. The transparent paint and gloss are brushed or sprayed on the surface of the decoration layer after dilution, and are dried in the shade after brushing or spraying, and then gloss is performed, and then repeated twice to form a transparent paint layer. The lacquer decoration part is obtained.

[0117] Comparative Example 2:

[0118] Comparative Example 2 is basically the same as Example 2, except that the step of scraping the clean ash paint in Step 2 of Comparative Example 2 is omitted. After the fine ash layer is formed by scraping the fine ash paint, the process of Step 3, the base paint (color paint), is directly performed.

[0119] Comparative Example 3:

[0120] Comparative Example 3 is basically the same as Example 2, except that the types of lime in the fine ash paint and the clean ash paint of Comparative Example 3 are interchanged, as shown in Table 1.

[0121] Example 3

[0122] Example 3 is basically the same as Example 2, except that the addition amounts of graphene in the fine ash paint and the clean ash paint in Step 2 of Example 3 are different. Specifically, the weight ratio of lime, raw lacquer and graphene in the fine ash paint and the clean ash paint is 2:1:0.1.

[0123] Example 4

[0124] Example 4 is basically the same as Example 2, except that the addition amounts of graphene in the fine ash paint and the clean ash paint in Step 2 of Example 4 are different. Specifically, the weight ratio of lime, raw lacquer and graphene in the fine ash paint and the clean ash paint is 2:1:0.3.

[0125] Example 5

[0126] Example 5 is substantially the same as Example 2, except that the graphene in the fine ash coating and the ash cleaning coating in step 2 of Example 5 is replaced by equal mass of graphite powder.

[0127] Example 6

[0128] Example 6 is substantially the same as Example 2, except that the graphene in the fine ash coating and the ash cleaning coating in step 2 of Example 5 is replaced by equal mass of carbon nanotubes.

[0129] Example 7

[0130] Example 7 is substantially the same as Example 3, except that graphene is also added to the coarse ash coating in Example 7, and the coarse ash coating is a mixture of coarse lime ash, raw lacquer and graphene in a weight ratio of 2:1:0.5; the particle size of the coarse lime ash is 80 mesh.

[0131] The following are performance tests.

[0132] 1. Heat resistance: Place the lacquerware decoration in a 90℃ test box for 72h, and observe the state of the sample after the test.

[0133] 2. Cold resistance: Place the lacquerware decoration in a -40℃ test box for 72h, and observe the state of the sample after the test.

[0134] 3. Cold and heat resistance: The test conditions are three cycles, and each cycle has the following test conditions:

[0135] First, store in a (-30±2)℃ test box for 2h, then in a (23±2)℃ test box for 0.5h, then in an 80℃ test box for 2h, then in a (23±2)℃ test box for 0.5h, then in a (50±2)℃ and 95%RH test box for 0.5h, and then in a (23±2)℃ test box for 0.5h. Observe the state of the sample after the test.

[0136] 4. Temperature rise performance: Place the lacquerware decoration in a 0℃ test box for 8h, and then measure the temperature rise of the surface of the sample (the surface of the transparent paint layer) after 5min of 13V voltage.

[0137] The part parameters and performance test results of each example and comparative example are shown in Table 1 and Table 2.

[0138] Table 1

[0139]

[0140] Table 2

[0141]

[0142] From Table 1 and Table 2, it can be seen that the conductive and heat-conductive material is not arranged in the fine ash coating and the ash removal coating in Comparative Example 1, and the heating and temperature rising performance is poor. In Comparative Example 2, the ash removal layer formed by omitting the ash removal coating, and the environmental resistance performance such as heat resistance, cold resistance and cold-heat alternating resistance of the paint product is poor. The paint product prepared in each of the examples has good environmental resistance performance such as heat resistance, cold resistance and cold-heat alternating resistance, and in particular, the heating and temperature rising performance is fast.

[0143] The technical features of the above-described embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not contradict each other, they should be considered as the scope of the description.

[0144] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims, and the description can be used to explain the content of the claims.

Claims

1. A painted article, characterized in that, The coating product comprises a substrate and a coarse mortar layer, a fine mortar layer, a clean mortar layer, a color paint layer, a decorative layer and a transparent paint layer which are sequentially arranged on the substrate; The substrate is made of a metal alloy substrate or a metal material substrate, the coating of the coarse mortar layer is composed of coarse lime and raw lacquer, the particle size of the coarse lime is 40-100 mesh, the coating of the fine mortar layer comprises first fine lime, raw lacquer and electrically and thermally conductive material, the particle size of the first fine lime is 120-180 mesh, the coating of the clean mortar layer comprises second fine lime, raw lacquer and electrically and thermally conductive material, the particle size of the second fine lime is 200-240 mesh, and the electrically and thermally conductive material in the fine mortar layer and the clean mortar layer independently comprises one or more of graphite powder, graphene and carbon nanotubes. In the coating of the coarse mortar layer, the weight ratio of the coarse lime to the raw lacquer is (1-2):1, the weight ratio of the first fine lime, the raw lacquer and the electrically and thermally conductive material is (1-2):1:(0.1-0.5), and in the coating of the clean mortar layer, the weight ratio of the second fine lime, the raw lacquer and the electrically and thermally conductive material is (1-2):1:(0.1-0.5).

2. The painted article of claim 1, wherein, The particle size of the graphite powder is 200-240 mesh; and / or, The flake size of the graphene is 1-20 μm; and / or, The diameter of the carbon nanotube is 5-30 nm, and the length is 5-200 μm.

3. The painted article of claim 1, wherein, In the coating of the coarse mortar layer, the weight ratio of the coarse lime to the raw lacquer is 2:

1.

4. The painted article of claim 1, wherein, In the coating of the fine mortar layer, the weight ratio of the first fine lime, the raw lacquer and the electrically and thermally conductive material is (1-2):1:(0.2-0.4).

5. The painted article of claim 1, wherein, In the coating of the clean mortar layer, the weight ratio of the second fine lime, the raw lacquer and the electrically and thermally conductive material is (1-2):1:(0.2-0.4).

6. The painted article of any of claims 1 to 5, wherein, The coating of the coarse mortar layer, the fine mortar layer and the clean mortar layer further independently comprises a solvent, and the solvent is water or kerosene.

7. The painted article of claim 6, wherein, The weight ratio of the solvent in the coating of the coarse mortar layer, the fine mortar layer and the clean mortar layer to the raw lacquer in the corresponding coating is (0.1-0.5):

1.

8. The lacquered article of any one of claims 1 to 5, wherein, One or more of the following conditions are met: (1) the thickness of the coarse mortar layer is 0.2-0.6 mm; (2) the thickness of the fine mortar layer is 0.1-0.5 mm; (3) the thickness of the clean mortar layer is 0.1-0.3 mm; (4) the thickness of the color paint layer is 10-50 μm; (5) the thickness of the decorative layer is 5-500 μm; (6) the thickness of the transparent paint layer is 100-500 μm.

9. The painted article of any of claims 1 to 5, wherein, The decorative layer is formed by one or more of the following processes: color drawing, gold drawing, halo gold, gold and silver color drawing and inlaying.

10. A method of preparing a lacquer article, characterized by, The coating product is as claimed in any one of claims 1-9, and the preparation method comprises the following steps: coating the substrate with the coating of the coarse mortar layer to form the coarse mortar layer; coating the coarse mortar layer with the coating of the fine mortar layer to form the fine mortar layer; coating the fine mortar layer with the coating of the clean mortar layer to form the clean mortar layer; and coating the clean mortar layer with the coating of the color paint layer to form the color paint layer. The color paint layer, the decorative layer and the transparent paint layer are sequentially formed on the soot cleaning layer.

11. An automobile characterized by comprising: A painted article comprising any one of claims 1 to 9.

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