CN215203824U

CN215203824U - High-toughness spliced aluminum-based copper-clad plate

Info

Publication number: CN215203824U
Application number: CN202121019250.1U
Authority: CN
Inventors: 况小军; 曾杰书; 叶志
Original assignee: Jiangxi Ruigong New Material Co ltd
Current assignee: Jiangxi Ruigong New Material Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-12-17
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a concatenation formula aluminium base copper-clad plate that toughness is strong, including aluminium base copper-clad plate body, aluminium base copper-clad plate body includes that outside-in has set gradually copper foil layer, goes up the back up coat, goes up insulating glutinous layer that glues. Through adopting the multilayer composite construction of the two-sided hot pressing of upper and lower floor, the surface at upper and lower copper foil layer scribbles polyurethane paint film anti-corrosion coating, make aluminium base copper-clad plate body have good chemical corrosion resistance, oil resistance, wearability and high adhesive force, improve toughness and the electrical insulation of aluminium base copper-clad plate body to a certain extent, back up coat through high fibre elastic fiber net improves the toughness and the wholeness of aluminium base copper-clad plate body greatly, thermosetting polyimide resin layer through setting up, make aluminium base copper-clad plate body have high heat resistance, wearability, ageing resistance, fire resistance and chemical resistance, and then the thermal diffusivity of aluminium base copper-clad plate body has been improved, whole structure production and processing easy operation, therefore, the clothes hanger is strong in practicability, and convenient popularization.

Description

High-toughness spliced aluminum-based copper-clad plate

Technical Field

The utility model relates to an aluminium base copper-clad plate technical field of concatenation formula especially relates to an aluminium base copper-clad plate of concatenation formula that toughness is strong.

Background

The manufacturing industry of the aluminum-based copper-clad plate is a rising industry, along with the electronic information and communication industry, the copper-clad aluminum-clad plate has wide development prospect, the manufacturing technology is a high and new technology with multiple disciplines of interdigitation, interpenetration and mutual promotion, the copper-clad aluminum-clad plate is synchronously developed with the electronic information industry, particularly with the printed circuit industry, and is unsegmentable, and the progress and development of the copper-clad plate is driven by the innovation and development of electronic complete machine products, semiconductor manufacturing technology, electronic installation technology and printed circuit board manufacturing technology.

With the rapid development of the electronic industry, the single aluminum-based copper-clad plate cannot meet different requirements of electronic products of different models, so that the spliced aluminum-based copper-clad plate is invented to improve the production requirement; because the volume size of electronic product is more and more little, and power density is more and more big, therefore radiating problem is urgently needed to be solved, but current aluminium base copper-clad plate of concatenation formula heat dispersion is relatively poor, and heat resistance is not high, leads to panel ageing easily, and then leads to the mechanical properties of panel poor, and traditional aluminium base copper-clad plate's toughness is not strong, breaks easily to corrosion resisting property is relatively poor, is unfavorable for processing production, and the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an aluminium base copper-clad plate of concatenation formula that toughness is strong has solved the problem that above-mentioned background art provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a spliced aluminum-based copper-clad plate with strong toughness comprises an aluminum-based copper-clad plate body, wherein the aluminum-based copper-clad plate body comprises an upper copper foil layer, an upper reinforcing layer, an upper insulating adhesive layer, an upper thermosetting polyimide resin layer, an aluminum-based material layer, a lower thermosetting polyimide resin layer, a lower insulating adhesive layer, a lower reinforcing layer and a lower copper foil layer which are sequentially arranged from outside to inside, an aluminum substrate layer is arranged in the middle layer of the aluminum-based copper-clad plate body, the upper thermosetting polyimide resin layer and the lower thermosetting polyimide resin layer are arranged on the upper surface and the lower surface of the aluminum substrate layer, the upper insulating adhesive layer is arranged on the top surface of the upper thermosetting polyimide resin layer, the lower insulating adhesive layer is arranged on the bottom surface of the lower thermosetting polyimide resin layer, the upper reinforcing layer is arranged on the top surface of the upper insulating adhesive layer, the lower reinforcing layer is arranged on the bottom surface of the lower insulating adhesive layer, the top surface of going up the back up coat is provided with the copper foil layer, the bottom surface of back up coat is provided with down the copper foil layer.

Preferably, the aluminum-based copper-clad plate body is a plate-shaped material with a double-sided multi-layer composite structure through hot pressing.

Preferably, the thickness of the aluminum substrate layer is 0.8-30 μm.

Preferably, the thickness of the upper thermosetting polyimide resin layer and the thickness of the lower thermosetting polyimide resin layer are both 1.5-3.5 μm, and the Polyimide (PI) is a thermosetting high-temperature-resistant aromatic heterocyclic plastic material and has high heat resistance, wear resistance, aging resistance, flame resistance and chemical resistance.

Preferably, the upper insulating adhesive layer and the lower insulating adhesive layer are both formed by immersing an electronic epoxy glass fiber cloth adhesive sheet in a high-thermal-conductivity epoxy resin material.

Preferably, the upper reinforcing layer and the lower reinforcing layer are both made of high-fiber elastic fiber net materials, and the thickness of the upper reinforcing layer and the thickness of the lower reinforcing layer are both 0.5-8 mu m.

Preferably, the thicknesses of the upper copper foil layer and the lower copper foil layer are both 5-70 μm, the outer surfaces of the upper copper foil layer and the lower copper foil layer are coated with polyurethane paint film anti-corrosion layers, the paint film toughness and the electrical insulation property are good, the highest heat resistance of the polyurethane paint is 155 ℃, and the polyurethane paint has good chemical corrosion resistance, oil resistance, wear resistance and adhesive force.

Compared with the prior art, the beneficial effects of the utility model are that: this aluminium base copper-clad plate of concatenation formula that toughness is strong, multilayer composite structure through having adopted the two-sided hot pressing of upper and lower layer, the surface at upper and lower copper foil layer scribbles polyurethane paint film anti-corrosion coating, make aluminium base copper-clad plate body have good chemical corrosion resistance, wearability, high adhesive force, the toughness and the electrical insulation nature of aluminium base copper-clad plate body have been improved to a certain extent, back up coat through high fibre elastic fiber net has improved the toughness and the wholeness of aluminium base copper-clad plate body greatly, through the thermosetting polyimide resin layer that sets up, make aluminium base copper-clad plate body have high heat resistance, wearability, ageing resistance, fire resistance and chemical resistance, and then the thermal diffusivity of aluminium base copper-clad plate body has been improved, whole structure production and processing easy operation, therefore, the clothes hanger is strong in practicability, and convenient for popularization.

Drawings

Fig. 1 is a schematic view of the cross-sectional structure of the present invention.

In the figure: 1 aluminium base copper-clad plate body, 2 go up copper foil layer, 3 go up the back up coat, 4 go up insulating gluing layer, 5 go up thermosetting polyimide resin layer, 6 aluminium substrate layer, 7 lower thermosetting polyimide resin layer, 8 lower insulating gluing layer, 9 back up coat, 10 lower copper foil layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a spliced aluminum-based copper-clad plate with strong toughness comprises an aluminum-based copper-clad plate body 1, wherein the aluminum-based copper-clad plate body 1 is a plate-shaped material which is formed by hot pressing a double-sided multilayer composite structure, the aluminum-based copper-clad plate body 1 comprises an upper copper foil layer 2, an upper reinforcing layer 3, an upper insulating adhesive layer 4, an upper thermosetting polyimide resin layer 5, an aluminum-based material layer 6, a lower thermosetting polyimide resin layer 7, a lower insulating adhesive layer 8, a lower reinforcing layer 9 and a lower copper foil layer 10 which are sequentially arranged from outside to inside, an aluminum substrate layer 6 is arranged in the middle layer of the aluminum-based copper-clad plate body 1, the thickness of the aluminum substrate layer 6 is 0.8-30 mu m, the upper thermosetting polyimide resin layer 5 and the lower thermosetting polyimide resin layer 7 are arranged on the upper surface and the lower surface of the aluminum substrate layer 6, the thicknesses of the upper thermosetting polyimide resin layer 5 and the lower thermosetting polyimide resin layer 7 are 1.5-3.5 mu m, the Polyimide (PI) is made of thermosetting high-temperature-resistant aromatic heterocyclic plastic and has high heat resistance, wear resistance, aging resistance, flame resistance and chemical resistance, an upper insulating adhesive layer 4 is arranged on the top surface of an upper thermosetting polyimide resin layer 5, a lower insulating adhesive layer 8 is arranged on the bottom surface of a lower thermosetting polyimide resin layer 7, the upper insulating adhesive layer 4 and the lower insulating adhesive layer 8 are both made of electronic epoxy glass fiber cloth adhesive sheets soaked with high-heat-conduction epoxy resin materials, an upper reinforcing layer 3 is arranged on the top surface of the upper insulating adhesive layer 4, a lower reinforcing layer 9 is arranged on the bottom surface of the lower insulating adhesive layer 8, the upper reinforcing layer 3 and the lower reinforcing layer 9 are both made of high-fiber elastic fiber mesh materials, the thicknesses of the upper reinforcing layer 3 and the lower reinforcing layer 9 are both 0.5-8 mu m, an upper copper foil layer 2 is arranged on the top surface of the upper reinforcing layer 3, the bottom surface of the lower reinforcing layer 9 is provided with a lower copper foil layer 10, the thicknesses of the upper copper foil layer 2 and the lower copper foil layer 10 are both 5-70 mu m, the outer surfaces of the upper copper foil layer 2 and the lower copper foil layer 10 are both coated with polyurethane paint film anti-corrosion layers, the paint film toughness and the electric insulation property are good, the highest heat resistance of the polyurethane paint is 155 ℃, and the polyurethane paint has good chemical corrosion resistance, oil resistance, wear resistance and adhesive force.

In conclusion, the splicing type aluminum-based copper-clad plate with high toughness adopts a multi-layer composite structure with hot pressing on the upper layer and the lower layer, the outer surfaces of the upper copper foil layer and the lower copper foil layer are coated with the polyurethane paint film anti-corrosion layer, so that the aluminum-based copper-clad plate body 1 has good chemical corrosion resistance, oil resistance, wear resistance and high adhesive force, the toughness and the electrical insulation of the aluminum-based copper-clad plate body 1 are improved to a certain extent, the toughness and the integrity of the aluminum-based copper-clad plate body 1 are greatly improved through the reinforcing layer of the high-fiber elastic fiber net, the aluminum-based copper-clad plate body 1 has high heat resistance, wear resistance, aging resistance, flame resistance and chemical resistance through the arranged thermosetting polyimide resin layer, and then improved aluminium base copper-clad plate body 1's thermal diffusivity, whole structure production processing easy operation, the practicality is strong, and the problem that above-mentioned background art provided has been solved to the facilitate promotion.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The spliced aluminum-based copper-clad plate with high toughness comprises an aluminum-based copper-clad plate body (1) and is characterized in that the aluminum-based copper-clad plate body (1) comprises an upper copper foil layer (2), an upper reinforcing layer (3), an upper insulating adhesive layer (4), an upper thermosetting polyimide resin layer (5), an aluminum-based material layer (6), a lower thermosetting polyimide resin layer (7), a lower insulating adhesive layer (8), a lower reinforcing layer (9) and a lower copper foil layer (10) which are sequentially arranged from outside to inside, an aluminum substrate layer (6) is arranged in the middle layer of the aluminum-based copper-clad plate body (1), an upper thermosetting polyimide resin layer (5) and a lower thermosetting polyimide resin layer (7) are arranged on the upper surface and the lower surface of the aluminum substrate layer (6), the upper insulating adhesive layer (4) is arranged on the top surface of the upper thermosetting polyimide resin layer (5), the lower insulating adhesive layer (8) is arranged on the bottom surface of the lower thermosetting polyimide resin layer (7), the top surface of going up insulating glutinous layer (4) is provided with back up coat (3), the bottom surface of insulating glutinous layer (8) is provided with down back up coat (9) down, the top surface of going up back up coat (3) is provided with copper foil layer (2), the bottom surface of back up coat (9) is provided with down copper foil layer (10) down.

2. The high-toughness spliced aluminum-based copper-clad plate as claimed in claim 1, wherein the aluminum-based copper-clad plate body (1) is a plate-shaped material with a double-sided multi-layer composite structure through hot pressing.

3. The high-toughness spliced aluminum-based copper-clad plate as claimed in claim 1, wherein the thickness of the aluminum substrate layer (6) is 0.8-30 μm.

4. The high-toughness spliced aluminum-based copper-clad plate as claimed in claim 1, wherein the thicknesses of the upper thermosetting polyimide resin layer (5) and the lower thermosetting polyimide resin layer (7) are both 1.5-3.5 μm.

5. The high-toughness spliced aluminum-based copper-clad plate according to claim 1, wherein the upper insulating adhesive layer (4) and the lower insulating adhesive layer (8) are both made of epoxy resin materials with high thermal conductivity and impregnated in an electronic epoxy glass fiber cloth adhesive sheet.

6. The high-toughness spliced aluminum-based copper-clad plate according to claim 1, wherein the upper reinforcing layer (3) and the lower reinforcing layer (9) are both made of high-fiber elastic fiber web materials, and the thicknesses of the upper reinforcing layer (3) and the lower reinforcing layer (9) are both 0.5-8 μm.

7. The tough spliced aluminum-based copper-clad plate according to claim 1, wherein the thickness of the upper copper foil layer (2) and the lower copper foil layer (10) is 5-70 μm, and the outer surfaces of the upper copper foil layer (2) and the lower copper foil layer (10) are coated with a polyurethane paint film anti-corrosion layer.