Composite material plate

Abstract

The present application relates to the field of composite material, and particularly relates to a composite material plate, comprising: a substrate and an oxidation layer. The oxidation layer is connected on at least one side surface of the substrate, and the surface opposite to the substrate is provided with a bonding surface, and the bonding surface has a first barb part, and the first barb part is used for enhancing the bonding force between the bonding surface and the oxidation layer. The composite material plate of the present application, the oxidation layer is tightly combined with the substrate through the first barb part, and the first barb part can greatly increase the bonding degree between the oxidation layer and the substrate, thereby effectively improving the strength of the composite material plate and preventing the cracking phenomenon. Therefore, the composite material plate of the present application can tightly combine the structures between the layers, increase the toughness of the composite material plate, and improve the service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of composite materials, in particular to a composite material plate. BACKGROUND

[0002] The composite material plates on the market at present mostly use the form of heating and pressing to bond two or more materials together, and the materials are mostly rubber, color steel and the like. Such composite materials have the defect of unstable connection, and in order to make the connection of the two materials more stable, welding and the like are mostly used, which leads to a relatively complex procedure and high cost, and is thus limited to only being suitable for small and medium-sized products. Moreover, color steel and the like will crack after long-term use due to their own weight and the processes of heating and pressing and the like. SUMMARY

[0003] Therefore, it is necessary to provide a composite material plate in view of the problems of insufficient adhesion and easy falling off of the traditional composite material.

[0004] The above-mentioned purpose is achieved by the following technical solutions.

[0005] A composite material plate, characterized in that it comprises a substrate and an oxidation layer, the oxidation layer being connected to at least one side surface of the substrate, the surface opposite to the substrate and the oxidation layer being provided with a bonding surface, the bonding surface being provided with a first barb portion, the first barb portion being used to enhance the bonding force between the bonding surface and the oxidation layer.

[0006] In one of the embodiments, the bonding surface comprises a first protrusion formed on the surface of the substrate, the cross section of the first protrusion is in the shape of an inverted trapezoid, the side wall of the first protrusion forms the first barb portion, and the oxidation layer is tightly connected to the substrate through the first protrusion.

[0007] In one of the embodiments, the bonding surface comprises a second protrusion formed on the surface of the substrate, the cross section of the second protrusion is in the shape of an inverted T, the side wall of the second protrusion forms the first barb portion, and the oxidation layer is tightly connected to the substrate through the second protrusion.

[0008] In one of the embodiments, the oxidation layer is a film layer formed on the bonding surface of the substrate by using micro-arc oxidation technology or anodic oxidation technology.

[0009] In one of the embodiments, the composite material plate further comprises a protective layer, the protective layer being connected to the surface of the oxidation layer away from the substrate.

[0010] In one of the embodiments, the surface opposite to the protective layer of the oxidation layer is formed with a connecting surface, the connecting surface is provided with a second barb portion, and the second barb portion is used to enhance the bonding force between the connecting surface and the protective layer.

[0011] In one of the embodiments, the connecting surface comprises a third protrusion formed on the surface of the oxidation layer, the third protrusion has an inverted trapezoidal cross section, the sidewall of the third protrusion forms a second hook portion, and the protective layer is tightly connected with the oxidation layer through the third protrusion.

[0012] In one of the embodiments, the protective layer is a silicon dioxide film layer or a titanium dioxide film layer.

[0013] In one of the embodiments, the composite material plate further comprises a protective film layer, the protective film layer is connected to the surface of the protective layer away from the oxidation layer.

[0014] In one of the embodiments, the protective film layer comprises a PE film and an adhesive layer, the PE film is connected to the surface of the protective layer through the adhesive layer.

[0015] The composite material plate has at least the following technical effects:

[0016] The composite material plate comprises a substrate, an oxidation layer and a protective layer, a connecting surface is arranged between the substrate and the oxidation layer, and the connecting surface has a first hook portion, which greatly increases the bonding degree between the oxidation layer and the substrate, thereby effectively improving the strength of the composite material plate and preventing cracking.

[0017] Further, the composite material plate further comprises a protective layer arranged on the surface of the oxidation layer away from the substrate, the oxidation layer is provided with a third protrusion, and the third protrusion has a second hook portion, which greatly increases the bonding degree between the oxidation layer and the protective layer. Therefore, the toughness of the entire composite material plate and the bonding degree between the film layers are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure schematic diagram of the composite material plate provided by one embodiment of the present application is shown;

[0019] Figure 2 The structure schematic diagram of the composite material plate provided by another embodiment of the present application is shown.

[0020] Wherein:

[0021] 100 - substrate;

[0022] 110 - connecting surface;

[0023] 111 - first protrusion; 112 - second protrusion;

[0024] 101 - first hook portion;

[0025] 200 - oxidation layer;

[0026] 210 - connecting surface;

[0027] 211 - third protrusion;

[0028] 201 - second barb;

[0029] 300 - protective layer;

[0030] 400 - protective film layer;

[0031] 410 - PE film;

[0032] 420 - adhesive layer. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the present application clearer, the composite material plate of the present application is further described in detail below with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0034] The serial numbers of components in the present application, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only used to facilitate the description of the present application and simplify the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0036] As Figure 1As shown, the composite plate of an embodiment of the present application comprises a substrate 100 and an oxidation layer 200, the oxidation layer 200 is connected to at least one side surface of the substrate 100, the surface opposite to the substrate 100 is provided with a bonding surface 110, the bonding surface 110 has a first barb part 101, the first barb part 101 is used to enhance the bonding force between the bonding surface 110 and the oxidation layer 200.

[0037] Wherein the substrate 100 can be a metal material. The oxidation layer 200 is connected to at least one side surface of the substrate 100, which means that Figure 1 As shown, the oxidation layer 200 can be connected to one side surface of the substrate 100, or as shown Figure 2 As shown, the oxidation layer 200 can be connected to the surfaces on both sides of the substrate 100, and the setting mode can be flexibly selected according to actual needs. The surface opposite to the substrate 100 is provided with a bonding surface 110, the bonding surface 110 has a first barb part 101, which can be understood as that the first barb part 101 is in the shape of a barb or similar to the shape of a barb, and the oxidation layer 200 can be embedded into the gap of the first barb part 101. Therefore, in addition to increasing the adhesion between the oxidation layer 200 and the substrate 100, a resistance caused by the special shape of the first barb part 101 is also increased, so that the combination between the oxidation layer 200 and the substrate 100 is more firm.

[0038] Referring to Figure 1 As shown, the bonding surface 110 provided on the surface of the substrate 100 has a first protrusion 111 and / or a second protrusion 112. The cross section of the first protrusion 111 can be in the shape of an inverted trapezoid, and the cross section of the second protrusion 112 can be in the shape of an inverted T. The side walls of the first protrusion 111 and the second protrusion 112 respectively form the first barb part 101, and the oxidation layer 200 is tightly connected with the substrate 100 through the first protrusion 111 and the second protrusion 112.

[0039] The number of the first protrusion 111 and the second protrusion 112 provided on the substrate 100 is not limited. In addition, the cross section of the first protrusion 111 in the shape of an inverted trapezoid can be an inverted right trapezoid, an inverted isosceles trapezoid or other trapezoids. The cross section of the second protrusion 112 in the shape of an inverted T can be any cross section of the second protrusion 112 in any direction, as long as it has a larger surface area and forms the first barb part 101. By providing the first protrusion 111 and / or the second protrusion 112 on the substrate 100 to form the first barb part 101, the bonding force between the oxidation layer 200 and the substrate 100 is greatly increased in function.

[0040] The oxide layer 200 can be formed in various ways. In one embodiment, it can be formed on the bonding surface 110 of the substrate 100 using micro-arc oxidation technology. In other embodiments, it can also be formed on the bonding surface 110 of the substrate 100 using anodic oxidation technology. Compared with traditional oxidation technology, it has advantages such as simple process, high production efficiency, and applicability to industrial production.

[0041] See Figure 1 As shown, as one feasible approach, the composite material panel also includes a protective layer 300, which is attached to the surface of the oxide layer 200 remote from the substrate 100. It is understood that the oxide layer 200 typically has two surfaces, one of which is attached to the substrate 100, and the other surface, the surface of the oxide layer 200 remote from the substrate 100, is attached to the protective layer 300. The protective layer 300 enhances the fire resistance, corrosion resistance, and other properties of the composite material panel.

[0042] like Figure 1 As shown, in one embodiment, the oxide layer 200 has a connecting surface 210 formed on the surface opposite to the protective layer 300. The connecting surface 210 has a second barb portion 201, which is used to enhance the bonding force between the connecting surface 210 and the protective layer 300. It is easy to understand that the shape of the second barb portion 201 is barb-shaped or barb-like. During the formation process, the protective layer 300 is embedded in the gap of the second barb portion 201, increasing the contact surface area between the oxide layer 200 and the protective layer 300. Moreover, the structural shape of the second barb portion 201 makes the protective layer 300 subject to a resistance when it detaches from the oxide layer 200, thereby increasing the toughness of the composite material plate.

[0043] In one embodiment, see Figure 1 As shown, the connecting surface 210 includes a third protrusion 211 formed on the surface of the oxide layer 200. The cross-section of the third protrusion 211 is an inverted trapezoid, and the sidewall of the third protrusion 211 forms a second barb portion 201. The protective layer 300 is tightly connected to the oxide layer 200 through the third protrusion 211.

[0044] The third protrusion 211 on the surface of the oxide layer 200 refers to the protrusion structure of the oxide layer 200 on the side away from the substrate 100. The cross section of the third protrusion 211 is inverted trapezoidal, which means that one of the cross sections of the third protrusion 211 is inverted trapezoidal, and the number of the third protrusion 211 arranged on the oxide layer 200 is not limited. The cross section of the third protrusion 211 can also be inverted right trapezoidal, inverted isosceles trapezoidal, or other trapezoidal, or the cross section of the third protrusion 211 can also be inverted T-shaped. The structure of the third protrusion 211 arranged on the surface of the oxide layer 200 makes the protective layer 300 and the oxide layer 200 not easy to fall off, and greatly increases the bonding force between the structure layers of the composite material plate.

[0045] The material selection of the protective layer 300 can be various. In one embodiment, the protective layer 300 can be selected as a silicon dioxide film layer. In other embodiments, the protective layer 300 can be selected as a titanium dioxide film layer. The protective layer 300 can be formed on the connecting surface 210 of the oxide layer 200 by micro-arc oxidation technology or anodic oxidation technology.

[0046] As shown in one of the embodiments, Figure 1 The protective film layer 400 is connected to the surface of the protective layer 300 away from the oxide layer 200. The color of the protective film layer 400 can be transparent or colored. The protective film layer 400 arranged outside the protective layer 300 can effectively improve the dustproof and antiskid functions of the composite material plate.

[0047] In one of the embodiments, as shown in Figure 1 The protective film layer 400 includes a PE film 410 and an adhesive layer 420, and the PE film 410 is connected to the surface of the protective layer 300 through the adhesive layer 420. The PE film 410 can better maintain the original luster of the protected material or product than other protective films, and also has the functions of corrosion resistance and slip resistance. The adhesive layer 420 is located between the PE film 410 and the protective layer 300, and the adhesion between the adhesive layer 420 and the PE film 410 is greater than the adhesion between the adhesive layer 410 and the protective layer 300, so as to prevent the adhesive layer 420 from being left on the composite material plate when the protective film layer 400 is removed.

[0048] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0049] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the patent scope of the present application. It should be noted 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.

Claims

1. A composite panel, characterized in that, The application relates to a substrate and an oxide layer connected to at least one side surface of the substrate, wherein the surface opposite to the substrate is provided with a bonding surface, and the bonding surface has a first hook portion for enhancing the bonding force between the bonding surface and the oxide layer. The bonding surface comprises a first protrusion formed on the surface of the substrate, the cross section of the first protrusion is in the shape of an inverted trapezoid, the side wall of the first protrusion forms the first hook portion, and the oxide layer is tightly connected to the substrate through the first protrusion. The application further relates to a protective layer connected to the surface of the oxide layer away from the substrate. The surface opposite to the oxide layer forms a connecting surface, and the connecting surface has a second hook portion for enhancing the bonding force between the connecting surface and the protective layer. The connecting surface comprises a second protrusion formed on the surface of the substrate, the cross section of the second protrusion is in the shape of an inverted T, the side wall of the second protrusion forms the first hook portion, and the oxide layer is tightly connected to the substrate through the second protrusion. The oxide layer is a film layer formed on the bonding surface of the substrate by micro-arc oxidation technology or anodic oxidation technology. The connecting surface comprises a third protrusion formed on the surface of the oxide layer, the cross section of the third protrusion is in the shape of an inverted trapezoid, the side wall of the third protrusion forms the second hook portion, and the protective layer is tightly connected to the oxide layer through the third protrusion. The protective layer is a silicon dioxide film layer or a titanium dioxide film layer. The application further relates to a protective film layer connected to the surface of the protective layer away from the oxide layer. The protective film layer comprises a PE film and a bonding adhesive layer, and the PE film is connected to the surface of the protective layer through the bonding adhesive layer. ​

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