Copper foil tape is a metal tape, mainly used for electromagnetic shielding, electrical signal shielding and magnetic signal shielding. Electrical signal shielding mainly depends on the excellent electrical conductivity of copper itself, while magnetic shielding requires the adhesive surface of copper foil tape The conductive material "nickel" is used to achieve magnetic shielding, and is therefore widely used in mobile phones, notebook computers and other digital products.

The general inspection performance of the most commonly used copper foil tape on the market is as follows:

Copper foil tape

Material: CU 99.98% Base material thickness: 0.015mm-0.1mm; Adhesive thickness: 0.035mm ~ 0.04mm; Colloid composition: ordinary pressure-sensitive adhesive (non-conductive) and conductive pressure acrylic pressure-sensitive adhesive; peeling force: 1.0 ～ 1.5kg / 25mm (180 degree reverse peel strength test); temperature resistance -10 ℃ --- 120 ℃; tensile strength 4.5 ～ 4.8kg / mm; elongation 7% ～ 10% MIN

Remarks:

1. The test conditions are normal temperature 25 ℃ and relative humidity below 65 ℃ using the results of American ASTMD-1000.

2. When storing the goods, please keep the room dry and ventilated. The domestic copper is generally stored for 6 months, and the importing country can be stored for a longer time and not easy to oxidize.

3. The product is mainly used to eliminate electromagnetic interference EMI, isolate the harm of electromagnetic waves to human body, mainly used in computer peripheral wire, computer monitor and transformer manufacturers.

4. Copper foil tape is divided into single-sided adhesive and double-sided adhesive. Single-sided coated copper foil tape is divided into single-conductor copper foil tape and double-conductor copper foil tape. Single-conductor copper foil tape means that the coated surface is non-conductive, and only the other side is copper conductive, so single-conductor is single-sided conductive ; Double-conducting copper foil tape means that the rubber-coated surface is conductive, and the copper on the other side is also conductive, so it is called double-conducting. There are also double-sided coated copper foil tape used to process into more expensive composite materials with other materials. The double-sided coated copper foil is also divided into conductive and non-conductive. The customer can according to their own needs for conductive To choose.