A preparation method of impact-resistant and heat-conducting aluminum alloy-carbon fiber-graphene laminate

A graphene layer and aluminum alloy technology, which is applied in the preparation of composite materials and electronic fields, can solve the problems of easy delamination of laminates, poor interlayer performance, poor fatigue resistance, etc., and achieve stable preparation performance, improved fatigue performance, The effect of stable performance of the finished product
CN107984838BActive Publication Date: 2019-08-09NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2019-08-09

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Abstract

The invention discloses a preparation method for impact-resistant and heat-conducting aluminum alloy-carbon fiber-graphene laminates. The preparation method comprises the following steps: 1) carryingout different surface treatment on the inner surface and the outer surface of an aluminum alloy blank, and carrying out surface treatment on a graphene heat-conducting film; 2) paving the aluminum alloy blank subjected to the surface treatment, an epoxy resin glue film and the graphene heat-conducting film in multiple layers; and 3) putting laminates obtained after pavement is completed into a vulcanizing machine, adopting a preset heating system, and carrying out epoxy resin curing and aluminum alloy ageing forming at the same time, so that preparation of the aluminum alloy-carbon fiber-graphene laminates is realized. The invention firstly puts forward a preparation scheme, applicable to mass production, of aluminum alloy-carbon fiber-graphene laminates used for an electronic product, preparation process is simple, the prepared finished product is stable in performance, interlayer performance is better, layering is difficult, and the aluminum alloy-carbon fiber-graphene laminates areapplicable to long-time application in electronic components.
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Description

technical field

[0001] The invention relates to the electronic field, in particular to a method for preparing an aluminum alloy-carbon fiber-graphene laminate, and belongs to the field of composite material preparation. Background technique

[0002] When mobile phones, computers and other electronic products are frequently used or played games, the heat inside the hand will become very serious, especially chips, batteries, graphics cards, etc. Excessive heat generation will cause discomfort when holding it, and on the other hand, the performance of the mobile phone may also be affected, or even restart or freeze. Therefore, in order to dissipate the heat of electronic products faster, many mobile phone manufacturers will paste graphite heat sinks on mobile phones, which is what we often call graphite heat dissipation.

[0003] Thermally conductive graphite sheet, also known as heat sink, is a high thermal conductivity and heat dissipation material. The chemical composition ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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