Preparation method of copper foil electricity-conducting, heat-conducting, anti-shock and shielding adhesive tape

Abstract

The invention discloses a preparation method of copper foil electricity-conducting, heat-conducting, anti-shock and shielding adhesive tape. The preparation method includes the following steps that S1, copper foil is selected and prepared into a base material layer; S2, 20-30 parts by weight of nano-scale metal powder and 10-15 parts by weight of nano-scale graphite powder are mixed, then 40-60 parts by weight of methylbenzene is added, after the materials are stirred for 5-10 min, 10 wt% to 15 wt% of electricity-conducting and heat-conducting liquid is added, the materials are stirred for 15-20 min, and an electricity-conducting and heat-conducting adhesive is prepared; S3, a release material is selected and prepared into a release material layer, the release material layer is coated with the electricity-conducting and heat-conducting adhesive through a coating machine, then the release material layer is cured in an oven at the temperature of 80-100 DEG C for 5-10 min, the electricity-conducting and heat-conducting adhesive is cured into electricity-conducting and heat-conducting adhesive layers, the electricity-conducting and heat-conducting adhesive layers are transferred to the two faces of the base material layer, and the copper coil double-faced adhesive tape with the two sides provided with the release material layers is prepared. The structure is simple, an omni-bearing electricity-heating sponge layer and the electricity-conducting and heat-conducting adhesive layers are arranged, and the electricity-conducting, heat-conducting, anti-shock and shielding effects can be achieved.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a method for preparing a copper foil conductive, thermally conductive, shock-resistant and shielding adhesive tape. Background technique [0002] With the rapid development of society, various adhesive tapes have become indispensable items in the electronics industry; in the electronic product industry such as mobile phones, notebook computers, tablet computers, and digital cameras, they can be used for fixing flexible circuits and frames. However, Ordinary adhesive tape is often used, which does not have the functions of electric conduction, heat conduction, shock resistance, and shielding, which affects the performance of electronic products. [0003] The conductive and thermally conductive tapes used in the market are generally made of conductive and thermally conductive substrates coated with conductive and thermally conductive adhesives. The use effect of the prepare...

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Problems solved by technology

[0002] With the rapid development of society, various adhesive tapes have become indispensable items in the electronics industry; in the electronic product industry such as mobile phones, notebook computers, tablet computers, and digital cameras, they can be used for fixing flexible circuits and frames. However, Ordinary adhesive tape is often used, which does not have the functions of electric conduction, heat conduction, shock resistance, and shielding, which affects the performance of electronic products

[0003] The conductive and thermally conductive tapes used in the market are generally made of conductive and thermally conductive substrates coated with conductive and thermally conductive adhesives. The use effect of the prepared conductive tape is not satisfactory; the foam used in the anti-seismic tape is relatively soft, and its tensile performance is very poor. Die-cutting and punching are easy to deform and cause dimensional changes during use.

[0004] These tape products have single performance and cannot meet the needs of the rapid development of the electronics industry. Therefore, it is necessary to develop a copper foil conductive, thermal conductive, shock-resistant, and shielding tape.

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