Electroconductive light-shielding adhesive tape and preparation method thereof
A technology of shading tape and conductive adhesive layer, applied in the direction of conductive adhesives, adhesives, adhesive types, etc., can solve the problems of not meeting people's needs, inconvenient operation, easy curling and bonding, etc., to improve the effective utilization High efficiency, good adherence, easy preparation
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[0055] The preparation method of above-mentioned conductive light-shielding adhesive tape, comprises the steps:
[0056] Step 1: Prepare black PET coating 1 material;
[0057] Step 2: Prepare black conductive adhesive layer 4 material;
[0058] Step 3: apply the double-sided adhesive layer 32 between the first aluminum foil layer and the second aluminum foil layer respectively to form a double aluminum foil base material layer;
[0059] Step 4: Apply the black PET coating 1 material on one side of the double aluminum foil substrate layer by dimple coating;
[0060] Step 5: Set a release film 4 on the other side of the double aluminum foil substrate layer, and roll it up to obtain a conductive light-shielding tape.
[0061] further,
[0062] In step one, the steps for preparing the black PET coating 1 material are as follows:
[0063] 1) Take the raw materials according to the proportioning ratio for subsequent use;
[0064] 2) Put the raw materials into the high-speed sti...
Embodiment 1
[0082] The specific proportioning of the double-sided adhesive layer material wherein is:
[0083] Polyurethane glue (Henkel LA3640), isocyanate curing agent (Henkel LA6800), butanone, the corresponding mass ratio is: (50): (1): (49); in the present embodiment, the first aluminum foil Mylar layer 31 The thickness of the Mylar layer of the second aluminum foil is respectively set to 9 microns, and the thickness of the double-sided adhesive layer 32 is set to 3 microns. When coating the double-sided adhesive layer 32, the temperature of the oven is controlled at 110 ° C, and the baking time is 1.5 minutes to make a double aluminum foil substrate layer;
[0084]The specific ratio of the black PET coating material is:
[0085] Low-functionality UV resin (Sartomer CN 8000), high-functionality resin (allnex EB8296), thermoplastic acrylic resin (DOW solid resin Paraloid A-11), photoinitiator (2,4,6-trimethyl ethyl benzoyl phosphonate), anti-fingerprint additives (DIASON RS-72-K), m...
Embodiment 2
[0089] The specific proportioning of the double-sided adhesive layer material wherein is:
[0090] Polyurethane glue (WANEXEL 760A), isocyanate curing agent (Bayer L-75), methyl ethyl ketone, the corresponding mass ratio is: (45): (0.8): (54.2); in this embodiment, the first aluminum foil Mylar The thicknesses of the layer 31 and the second aluminum foil Mylar layer are respectively set to 9 microns, and the thickness of the double-sided adhesive layer 32 is set to 3 microns. When the double-sided adhesive layer 32 is coated, the temperature of the oven is controlled at 110 ° C, and the baking The time is 1 minute, and the double aluminum foil substrate layer is made;
[0091] The specific ratio of the black PET coating material is:
[0092] Low-functionality UV resin (Changxing 6175-3), high-functionality resin (allnex EB8296), thermoplastic acrylic resin (Dow DOW solid resin Paraloid A-11), photoinitiator (2,4,6 (trimethyl Benzoyl) diphenyl phosphine oxide), anti-fingerpri...
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