CN115056725A - Automobile interior and exterior decoration luminous product with coating structure and preparation method thereof - Google Patents

Automobile interior and exterior decoration luminous product with coating structure and preparation method thereof Download PDF

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Publication number
CN115056725A
CN115056725A CN202210606218.6A CN202210606218A CN115056725A CN 115056725 A CN115056725 A CN 115056725A CN 202210606218 A CN202210606218 A CN 202210606218A CN 115056725 A CN115056725 A CN 115056725A
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layer
product
coating structure
transparent
pur
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刘杰
傅相林
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Jiaxing Minhui Automotive Parts Co Ltd
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Jiaxing Minhui Automotive Parts Co Ltd
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Priority to CN202210606218.6A priority Critical patent/CN115056725A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/20—Metallic material, boron or silicon on organic substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers

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  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
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  • Manufacturing & Machinery (AREA)
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Abstract

The invention relates to an automobile interior and exterior decoration luminous product with a coating structure and a preparation method thereof, belonging to the technical field of coating technology. The invention discloses an automobile interior and exterior trim luminous product with a coating structure, which comprises a 4-6 layer structure, and specifically comprises the following components: a transparent protective layer (5), a transparent base material (1), a PUR layer (2), a PVD layer (3) and a protective layer (4); the number of the protective layers (4) is 1 or 2; the number of layers of the transparent protective layer (5) is 0 or 1; the thickness of the automobile interior and exterior trim luminous product with the coating structure is 1-6 mm; the transparent base material (1) and the PUR layer (2) are subjected to double-color injection molding in a mold; the thickness of the PUR layer (2) is 0.3-2mm, and the transmittance is 90-95%. The invention also discloses a preparation method of the automobile interior and exterior decoration luminous product with the coating structure.

Description

Automobile interior and exterior decoration luminous product with coating structure and preparation method thereof
Technical Field
The invention belongs to the technical field of coating technology, and relates to an automobile interior and exterior trim luminescent product with a coating structure and a preparation method thereof.
Background
With the increasing development of new energy vehicles, the host factory not only focuses on the decoration effect of the interior and exterior trim, but also focuses on the increase of functions and the technological sense. At present, many automobile interior and exterior decorations are developed towards a light emitting module, such as an interior atmosphere lamp, an exterior lighting grille, a lighting decoration strip and the like. The current structural design mainly focuses on processes such as single-piece split assembly, IML, PVD and the like, but the processes all have certain limitations. If the hardness of the plastic substrate is low, the surface of the part is not smooth enough when the PVD process is performed. In addition, the PVD metal layer is directly contacted with the plastic base material, the adhesive force between the PVD metal layer and the plastic base material cannot meet the automobile performance standard, and the method for solving the problems at present is to add a layer of primer, then cover a metal layer through a PVD process, and finally spray a layer of protective paint on the surface of the metal layer. But the defects such as particles, pollution and the like can be caused on the surface in the processes of spraying transparent primer and transporting, and the nanometer-level PVD metal layer can not cover the defects, so that the appearance defects of the part are obvious. In the light emitting state, these defects are amplified, and pinhole defects also occur, resulting in a decrease in product yield. Therefore, a new manufacturing method is needed to make up for the drawbacks of the prior art and to obtain a product with high performance and high yield.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an automobile interior and exterior trim luminescent product with a coating structure, which has good light transmission, wear resistance, corrosion resistance and adhesion.
The purpose of the invention can be realized by the following technical scheme:
the automobile interior and exterior trim luminous product with the coating structure is of a 4-6-layer structure and specifically comprises: a transparent protective layer 5, a transparent base material 1, a PUR layer 2, a PVD layer 3 and a protective layer 4; the number of the protective layers 4 is 1 or 2; the number of the layers of the transparent protective layer 5 is 0 or 1; the thickness of the automobile interior and exterior trim luminous product with the coating structure is 1-6 mm; the transparent base material 1 and the PUR layer 2 are subjected to double-color injection molding in a mold; the thickness of the PUR layer 2 is 0.3-2mm, and the transmittance is 90-95%.
When the automobile interior and exterior lighting product with the coating structure has a 4-layer structure, the structure is schematically shown in fig. 1, wherein 4 in fig. 1 is only one of 4.1 or 4.2; when the automotive interior and exterior luminous product with the coating structure has a 5-layer structure, the structure is schematically shown in fig. 2-3, wherein 4 in fig. 2 is only one of 4.1 or 4.2; when the automotive interior and exterior luminous product having the coating structure has a 6-layer structure, a schematic view of the structure is shown in fig. 4.
Preferably, the transparent substrate 1 comprises one or more of PC and PMMA, and has a thickness of 1.5-4 mm.
Further preferably, the transparent substrate 1 has a light transmittance of 90 to 95%.
Preferably, the PUR layer 2 has a thickness of 0.3 to 2mm and a light transmittance of 90 to 95%.
A PUR coating that is too thick may result in increased cost, limited structure, and color shift; too thin can affect coating integrity and current dies cannot achieve coatings below 0.3mm thickness. And if the light transmittance is lower than the above value, the light emitting effect required for the light emitting product cannot be achieved due to the occurrence of light loss.
More preferably, the thickness ratio of the transparent substrate 1 to the PUR layer 2 is (0.8 to 3): 1.
generally, a single-layer substrate needs to be pretreated, and if the pretreatment of the substrate is not good, the surface of the material is not flat. The transparent primer is added in the existing coating structure to enable the surface to be smooth, the PVD layer 3 is easy to spray and maintain attractive appearance, but harmful gas can be generated in the spraying process of the primer to pollute the environment, even if the primer is sprayed, the defects of pinholes, particles, pollution and the like can be generated, and the spraying of the primer can cause environmental pollution. The PVD layer 3 is directly coated on the substrate, which cannot meet the requirement of adhesion performance. The invention omits the primer, and the substrate and the PUR layer 2 are molded in a mold through double-color injection, thereby avoiding the defects of pollution, unevenness and the like caused in the primer spraying process, and simultaneously realizing the purposes of smooth surface and easy subsequent coating coverage. Too thick a PUR coating can result in increased cost, limited structure, and color shift; too thin can affect coating integrity. And if the light transmittance is lower than the above value, the light emitting effect required for the light emitting product cannot be achieved due to the occurrence of light loss.
The thickness of the base material needs to be kept within a certain range, and the problems of difficult mold forming, shrinkage and the like caused by too thick base material are solved; too thin a substrate results in insufficient filling and poor molding. And the light transmittance may affect the light emitting effect of the product, so the light transmittance needs to be controlled.
Preferably, the light transmittance of the automobile interior and exterior trim luminous product with the coating structure is 85-95%.
Preferably, the PVD layer 3 is a metal layer, and the metal includes one or more of indium, aluminum, chromium, tin, and copper, and has a thickness of 15-100 nm.
Further preferably, the PVD layer 3 is covered on the PUR layer 2 by means of physical vapor deposition.
Preferably, the protective layer 4 has a single-layer structure or a multi-layer structure, and the thickness is 15-100 nm.
Preferably, the protective layer 4 comprises one or more of an oxide layer 4.1 and a transparent coating 4.2.
Further preferably, the oxide layer 4.1 comprises one or more of silicon oxide and titanium oxide, and has a thickness of 15-100 nm.
Further preferably, the transparent coating 4.2 comprises one or more of low-temperature thermosetting acrylic resin and UV acrylic resin, and the thickness is 10-60 μm.
Preferably, the transparent protective layer 5 comprises one or more of low-temperature thermosetting acrylic resin and UV acrylic resin, and has a thickness of 10-60 μm.
Preferably, both sides of the automotive interior and exterior lighting product having the coating structure may be used as outer sides.
Further preferably, when the side of the substrate PC1 having the PUR layer 2 is the inside of the luminescent product, the other side of the substrate PC has a transparent protective layer 5.
Further preferably, when the transparent substrate 1 is the outer side, the transparent substrate 1 cannot be PC; when one of the protective layer 4, the oxide layer 4.1, the transparent coating 4.2 is the outside, the transparent substrate 1 may be PC, PMMA, and the transparent protective layer 5 may be omitted.
Since the metal layer in the PVD layer 3 is easily oxidized and peeled off, a protective layer needs to be covered. And when one side of the base material PMMA coating is the inner side of the luminescent product, the product performance is not greatly influenced by the existence of the protective layer on the outer side of the luminescent product. Because PMMA material has better performances of aging resistance, wear resistance and the like, the excellent performance of the product can be maintained even without a protective layer, and the PC material needs to be protected by the protective layer due to the inherent property of the PC material. When the side of the coating is the outer side of the luminescent product, the protective layer on the inner side is not necessary, because the inner side is a sealing structure, the affected factors are less, and the performance is not greatly changed by the existence of the protective layer.
Both sides of the automobile interior and exterior trim luminescent product with the coating structure can be used as the inner side or the outer side of the luminescent product, and the specific coating can be slightly changed according to the base material, the coating and the application, but good service performance can be realized.
The invention also discloses a preparation method of the automobile interior and exterior trim luminescent product with the coating structure, which comprises the following steps:
s1, performing double-shot injection molding in a mold, wherein one shot is a transparent base material 1, and the other shot is a PUR layer 2;
s2, carrying out tool shielding on the other side of the PUR layer 2, and covering the PVD layer 3 on the PUR layer 2 by a physical vapor deposition method;
s3, spraying a protective layer 4 on the PVD layer 3;
s4, spraying the transparent protective layer 5 on the uncoated side of the transparent substrate 1 to obtain the automobile interior and exterior decoration luminous product with the coating structure.
The purpose of the PVD layer 3 is to add aesthetic and decorative effects, and the product has various colors by adding a metal layer. But too thick a PVD layer 3 will affect the light transmission; too thin loses metallic luster, so the thickness needs to be controlled. And, the PVD layer 3 is obtained by carrying out physical vapor deposition in a vacuum furnace, and the region without a coating needs to be shielded by a tool, so that the influence on the appearance and performance of the product due to coating is avoided.
Compared with the prior art, the invention has the following beneficial effects:
1. the automobile interior and exterior trim luminescent product with the coating structure has good wear resistance, aging resistance, stability and adhesiveness.
2. Both sides of the automobile interior and exterior trim luminous product with the coating structure can be used as the outer sides, and excellent performance can be kept.
3. The transparent base material 1 and the PUR layer 2 are directly manufactured by adopting double-color injection molding in a mold, so that the surface of the base material is smooth and is easy to cover by a subsequent coating; and the process is simple and environment-friendly, and is easy for large-scale production.
Drawings
Fig. 1 is a 4-layer structure of an automotive interior and exterior lighting product with a coating structure according to the present invention.
Fig. 2 is a 5-layer structure of the automotive interior and exterior lighting product with a coating structure prepared by the invention.
Fig. 3 is a 5-layer structure of the luminous product with a coating structure for the interior and exterior of an automobile manufactured by the invention.
Fig. 4 is a 6-layer structure of the automotive interior and exterior trim light-emitting product with a coating structure prepared by the invention.
In the figure: 1. a transparent substrate; 2. a PUR layer; 3. a PVD layer; 4. a protective layer; 4.1, an oxide layer; 4.2, transparent coating; 5. and a transparent protective layer.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples. The product obtained was obtained in two ways: one side of the transparent substrate 1 without the PUR layer 2 is the outer side of a luminescent product; and secondly, taking one side of the transparent substrate 1 with the PUR layer 2 as the outer side of a luminescent product, and carrying out conventional corresponding performance detection.
Example 1
Performing injection molding, performing double-color filling injection molding by an in-mold spray molding machine, wherein one shot is a transparent base material PC1, the light transmittance is 92%, and the thickness is 2.5 mm; the second shot was transparent PUR coating material 2, having a light transmittance of 91% and a thickness of 0.5mm on the front surface of the substrate. Carrying out tool shielding on the other side of the PUR coating, and covering an indium metal layer 3 on the surface of the PUR layer 2 through physical vapor deposition, wherein the thickness is 20 nm; spraying an acrylic resin transparent protective layer 4.2 with the thickness of 40 mu m on the surface of the indium metal layer 3; the transparent substrate 1 without the PUR layer 2 has a transparent protective layer 5 of low-temperature thermosetting acrylic resin. Namely, the automobile interior and exterior decorative luminous product with the coating structure has a 5-layer structure and is sequentially provided with a transparent protective layer 5; a transparent substrate (1-PC); a PUR layer 2; an indium metal layer 3; acrylic transparent protective layer 4.2. Tests are carried out in the first and second modes, and the test results show that the product has good wear resistance and corrosion resistance, and is not easy to discolor, become brittle and fall off.
Example 2
Compared with the embodiment 1, the difference is that the surface of the indium metal layer 3 is covered with a silicon oxide layer 4.1 with the thickness of 30nm and an acrylic resin transparent protective layer 4.2 with the thickness of 50 mu m; the automobile interior and exterior decorative luminous product with the coating structure is of a 6-layer structure, and sequentially comprises the following components: a transparent protective layer 5; a transparent substrate (1-PC); a PUR layer 2; an indium metal layer 3; a silicon oxide layer 4.1 and an acrylic resin transparent protective layer 4.2. Tests are carried out in the first and second modes, and the test results show that the product has good wear resistance and corrosion resistance, and is not easy to discolor, become brittle and fall off.
Example 3
Compared with the embodiment 1, the difference is that only the titanium oxide layer 4 with the thickness of 40nm covers the surface of the indium metal layer 3; the automobile interior and exterior decorative luminous product with the coating structure is of a 5-layer structure, and sequentially comprises the following components: a transparent protective layer 5; a transparent substrate (1-PC); a PUR layer 2; an indium metal layer 3; silicon oxide layer 4.1. Tests are carried out in the first and second modes, and the test results show that the product has good wear resistance and corrosion resistance, and is not easy to discolor, become brittle and fall off.
Example 4
Compared with the example 1, the difference is that the transparent substrate 1 is PMMA, and the side of the transparent substrate 1 without the PUR layer 2 is not provided with the transparent protective layer 5; the automobile interior and exterior decorative luminous product with the coating structure is of a 4-layer structure, and sequentially comprises the following components: a transparent substrate (1-PMMA); a PUR layer 2; an indium metal layer 3; acrylic resin protective layer 4.2. Tests are carried out in the first and second modes, and the test results show that the product has good wear resistance and corrosion resistance, and is not easy to discolor, become brittle and fall off.
Example 5
Compared with the example 1, the difference is that the transparent substrate 1 is PMMA, and the transparent protective layer 5 is arranged on the transparent substrate 1 on the side without the PUR layer 2, that is, the automotive interior and exterior trim luminescent product with the coating structure has a 5-layer structure, and sequentially comprises: a transparent protective layer 5; a transparent substrate (1-PMMA); a PUR layer 2; an indium metal layer 3; acrylic resin protective layer 4.2. Tests are carried out in the first and second modes, and the test results show that the product has good wear resistance and corrosion resistance, and is not easy to discolor, become brittle and fall off.
Comparative example 1
Compared with the example 1, the difference is that a transparent UV primer is coated on the surface of the transparent substrate 1 without using a two-color injection molding process, and the PUR layer 2 is added. The surface was observed to have pinhole-like defects.
Comparative example 2
Compared with example 1, the difference is that the side of the transparent substrate PC1 without the PUR layer 2 is free of the transparent protective layer 5; the luminous product of automotive interior and exterior trim with the coating structure is a 4-layer structure, and sequentially comprises the following components: a transparent substrate (1-PC); a PUR layer 2; an indium metal layer 3; acrylic resin protective layer 4.2. The test is carried out in the second way, and the test result shows that the product has good wear resistance and corrosion resistance, and is not easy to change color, become brittle and fall off; the test is carried out in the mode, and the PC surface without the protective layer is not wear-resistant and is easy to age.
Comparative example 3
Compared with example 1, the difference is that the surface of the metal layer 3 is free from other coatings, and the side of the transparent substrate PC1 without the PUR layer 2 is free from the transparent protective layer 5; the luminous product of automotive interior exterior trim that has the structure of scribbling promptly is 3 layers of structures, does in proper order: a transparent substrate (1-PC); a PUR layer 2; an indium metal layer 3. The test was carried out in the following manner: is not wear-resistant; the test was performed in a second way: wear-resistant but the metal layer is prone to discoloration.
Comparative example 4
Compared with the example 1, the difference is that the transparent substrate 1 is PMMA, no other coating is arranged on the surface of the metal layer 3, and the transparent protective layer 5 is arranged on the side of the transparent substrate PC1 without the PUR layer 2; the automobile interior and exterior decorative luminous product with the coating structure is of a 3-layer structure, and sequentially comprises the following components: a transparent substrate (1-PMMA); a PUR layer 2; an indium metal layer 3. The test was carried out in the following manner: the PMMA material is wear-resistant and ageing-resistant; the test was performed in a second way: the metal layer is prone to discoloration.
Comparative example 5
Compared with the example 1, the difference is that the transparent substrate PC1 has a transparent protective layer 5 on the side without the PUR layer 2, and the surface of the metal layer 3 has no other coating; the automobile interior and exterior decorative luminous product with the coating structure is of a 4-layer structure, and sequentially comprises the following components: a transparent protective layer 5; a transparent substrate (1-PC); a PUR layer 2; an indium metal layer 3. The test was performed in the following manner: wear resistance; the test was performed in a second way: the metal layer is wear resistant but is prone to discoloration.
Comparative example 6
Compared with the embodiment 1, the difference is that the transparent substrate 1 is PMMA, no other coating is arranged on the surface of the metal layer 3, and a transparent protective layer is arranged on one side of the substrate PMMA, which is not provided with the PUR layer 2; the automobile interior and exterior decorative luminous product with the coating structure is of a 4-layer structure, and sequentially comprises the following components: a transparent protective layer 5; a transparent substrate (1-PMMA); a PUR layer 2; an indium metal layer 3. The test was carried out in the following manner: wear resistance; the test was performed in a second way: the metal layer is wear resistant but is prone to discoloration.
Comparative example 7
Compared with the example 1, the difference is that the transparent substrate 1 is PMMA, the side of the transparent substrate 1 without the PUR layer 2 is not provided with the transparent protective layer 5, the side of the substrate PMMA with the PUR layer 2 is not provided with the metal layer 3, and only the PUR layer 2 is covered with the acrylic resin transparent protective layer 4.2 with the thickness of 50 μm; the automobile interior and exterior decorative luminous product with the coating structure is of a 3-layer structure, and sequentially comprises the following components: a transparent substrate (1-PMMA); a PUR layer 2; acrylic resin protective layer 4.2. The observation shows that the coating structure has no metallic luster, but the test is carried out by the methods I and II, and the test results show that the product still has certain wear resistance and corrosion resistance.
In conclusion, both sides of the automobile interior and exterior trim luminous product with the coating structure prepared by the method can be used as the outer sides, and the excellent performance can be kept, if the partial coating is lacked, the corresponding performance can not be achieved; when the PMMA substrate is directly contacted with the outside environment, the good wear resistance and aging resistance can be still maintained due to the characteristics of the material, and the transparent protective layer can be omitted; when the PC substrate is directly contacted with the outside environment, scratch and aging resistance are easily caused, so that a transparent protective layer is required to be added.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (10)

1. The automobile interior and exterior trim luminous product with the coating structure is characterized by having a 4-6 layer structure, and specifically comprises: a transparent protective layer (5), a transparent base material (1), a PUR layer (2), a PVD layer (3) and a protective layer (4); the number of the protective layers (4) is 1 or 2; the number of layers of the transparent protective layer (5) is 0 or 1;
the thickness of the automobile interior and exterior trim luminous product with the coating structure is 1-6 mm;
the transparent base material (1) and the PUR layer (2) are subjected to double-color injection molding in a mold;
the thickness of the PUR layer (2) is 0.3-2mm, and the transmittance is 90-95%.
2. The automotive interior and exterior trim luminescent product with a coating structure according to claim 1, wherein the transparent substrate (1) comprises one or more of PC and PMMA and has a thickness of 1.5-4 mm.
3. The luminescent product with coating structure for automobile interior and exterior trim according to claim 1, wherein the transparent substrate 1 has a light transmittance of 90-95%.
4. The interior and exterior automotive trim lighting product with a coating structure of claim 1, wherein the interior and exterior automotive trim lighting product with a coating structure has a light transmittance of 85-95%.
5. The automotive interior and exterior trim luminescent product with a coating structure according to claim 1, wherein the protective layer (4) has a single-layer structure or a multi-layer structure and has a thickness of 15-100 nm.
6. The automotive interior and exterior trim luminescent product with a coating structure according to claim 1, characterized in that the protective layer (4) comprises one or more of an oxide layer (4.1), a transparent coating (4.2).
7. The automotive interior and exterior trim luminescent product with a coating structure according to claim 6, wherein the oxide layer (4.1) comprises one or more of silicon oxide and titanium oxide and has a thickness of 15-100 nm.
8. The automotive interior and exterior trim luminous product with the coating structure according to claim 6, wherein the transparent coating (4.2) comprises one or more of low-temperature thermosetting acrylic resin and UV acrylic resin and has a thickness of 10-60 μm.
9. The automotive interior and exterior trim luminous product with a coating structure according to claim 1, wherein the transparent protective layer (5) comprises one or more of low temperature thermosetting acrylic resin and UV acrylic resin and has a thickness of 10-60 μm.
10. A preparation method of an automobile interior and exterior lighting product with a coating structure is characterized by comprising the following steps:
s1, performing double-shot injection molding in a mold, wherein one shot is a transparent base material (1), and the other shot is a PUR layer (2);
s2, carrying out tool shielding on the other side of the PUR layer (2), and covering the PVD layer (3) on the PUR layer (2) by a physical vapor deposition method;
s3, spraying a protective layer (4) on the PVD layer (3);
s4, spraying a transparent protective layer (5) on the uncoated side of the transparent substrate (1) to obtain the automobile interior and exterior trim luminescent product with the coating structure.
CN202210606218.6A 2022-05-31 2022-05-31 Automobile interior and exterior decoration luminous product with coating structure and preparation method thereof Pending CN115056725A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112248944A (en) * 2020-09-27 2021-01-22 宁波信泰机械有限公司 Light-tight and light-tight automobile luminous exterior decoration
DE102023103624A1 (en) 2023-02-15 2024-08-22 Valeo Schalter Und Sensoren Gmbh Decorative component with a transparent cover layer and a protective layer arranged on a metal-optical layer and method for producing a decorative component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112248944A (en) * 2020-09-27 2021-01-22 宁波信泰机械有限公司 Light-tight and light-tight automobile luminous exterior decoration
DE102023103624A1 (en) 2023-02-15 2024-08-22 Valeo Schalter Und Sensoren Gmbh Decorative component with a transparent cover layer and a protective layer arranged on a metal-optical layer and method for producing a decorative component

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