Photocureable magnetic-conductive and light-conductive pressure-sensitive adhesive, adhesive tape and preparation method of adhesive tape

A technology of light-curing and pressure-sensitive adhesives, applied in the direction of pressure-sensitive films/sheets, adhesives, non-polymer organic compound adhesives, etc., which can solve the problem of affecting the continued use of components, difficult to clean magnetically conductive adhesives, and damage to the surface of materials, etc. Problems, to achieve excellent light and magnetic conductivity, easy processing, low shrinkage effect

Pending Publication Date: 2021-01-15
恩平市盈嘉丰胶粘制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its good magnetic properties, magnetically conductive adhesives are widely used in instrumentation and other fields. Magnetically conductive adhesives are generally coated on the surface of materials that need to be shielded to form a shielding coating. These magnetically conductive adhesives are mostly thermosetting materials. After curing and crosslinking Adhering to the surface of the material without peeling off again, but when some components need frequent maintenance and replacement, these magnetically conductive adhesives are difficult to clean, and the cleaning will damage the surface of the material or leave glue on the surface of the material, which will affect the components. Continue to use, and in some occasions (such as component testing, etc.), magnetic conductive adhesive is required to temporarily shield components and equipment, and then removed after the work is completed, so thermosetting magnetic conductive adhesive is very unsuitable in these occasions, and Magnetic pressure-sensitive adhesive can solve these problems. The magnetic-conductive pressure-sensitive adhesive is made into a tape, which can be adhered to the surface of the material to be shielded when needed. When not needed, the tape can be peeled off

Method used

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  • Photocureable magnetic-conductive and light-conductive pressure-sensitive adhesive, adhesive tape and preparation method of adhesive tape
  • Photocureable magnetic-conductive and light-conductive pressure-sensitive adhesive, adhesive tape and preparation method of adhesive tape
  • Photocureable magnetic-conductive and light-conductive pressure-sensitive adhesive, adhesive tape and preparation method of adhesive tape

Examples

Experimental program
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Effect test

preparation example Construction

[0053] A preparation method of light-curing, magnetic-conducting and light-conducting pressure-sensitive adhesive tape, coating the above-mentioned light-curing, magnetic-conducting and light-conducting pressure-sensitive adhesive on a release film, drying at 120°C for 10 minutes, and then placing it under a UV lamp at a distance of 15cm Radiation cross-linking, that is, light-curing, magnetic-conducting and photo-conductive pressure-sensitive adhesive tape, which can be used for pasting on the surface of materials, which is equivalent to the usage of double-sided adhesive tape. The UV light source is preferably a light source produced by carbon arc lamps, ultra-high pressure mercury lamps, metal halide lamps, fluorescent lamps, and xenon lamps. The light source intensity, emission stability, and uniformity of spectral energy distribution are relatively good.

[0054] The proportioning of each component of Examples 1-3 is shown in Table 1.

[0055] The component formula of tab...

Embodiment 1

[0059] The functional monomer is N-methacrylamide, the tackifying resin is terpene resin, the diluent is ethanol, the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-acetone, and the light-conducting filler is Nano titanium dioxide, magnetic filler is nano iron powder, leveling agent is polybutyl acrylate, dispersant is sodium hydroxypropyl acrylate, coupling agent is propenyl butanone dichlorosiloxane, defoaming agent is benzoic acid Epoxypentanol esters.

Embodiment 2

[0061]The functional monomer is N-hydroxyethylacrylamide, the tackifying resin is petroleum resin, the diluent is ethanol + HDDA, and the photoinitiator is 2,2'-bis(2-chlorophenyl)-4,4',5 ,5'-Tetraphenyl-1,2'-biimidazole, the optical filler is nano-zinc oxide, the magnetic conductive filler is nano-carbonyl iron powder, the leveling agent is polyethylacrylate, and the dispersant is sodium carboxyethyl benzoate , the coupling agent is isobutyl vinyl dimethyl siloxane, and the defoamer is nitroheptyl laurate.

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Abstract

The invention discloses a photocureable magnetic-conductive and light-conductive pressure-sensitive adhesive, an adhesive tape and a preparation method of adhesive tape. The pressure-sensitive adhesive comprises the following components in parts by weight: 30-40 parts of modified functional resin, 60-80 parts of aliphatic epoxy modified acrylate resin, 5-15 parts of functional monomer, 10-30 partsof diluent, 0.5-1 part of photoinitiator, 5-10 parts of light-conductive filler, 8-12 parts of magnetic-conductive filler, 1-3 parts of rheological agent, 0.5-1.8 parts of leveling agent, 1-2.5 partsof dispersant, 0.8-2.4 parts of coupling agent, 1-3 parts of a defoaming, 0.2-1 part of a chain transfer agent and 20-50 parts of tackifying resin. The light-conductive and magnetic-conductive adhesive disclosed by the invention has the advantages of excellent light-conducting property and magnetic-conducting property, light crosslinking, easy adhesion, easy stripping and certain temperature resistance, and can be widely applied to adhesion of various products needing light conduction and magnetic conduction.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a photocurable, magnetically and photoconductive pressure-sensitive adhesive, an adhesive tape and a preparation method thereof. Background technique [0002] Transparent adhesive is a special adhesive used for bonding transparent optical components (touch screens, displays, optical lenses, etc.). Existing light-transmitting adhesives are too focused on light transmittance, which leads to shortcomings such as easy yellowing and inability to shield electromagnetic interference. [0003] With the wide application of electronic equipment, electromagnetic wave interference and information leakage have attracted more and more attention. Many equipment assembly, testing and other processes and some working environments require electromagnetic shielding to effectively reduce electromagnetic radiation. Therefore, electromagnetic shielding Materials are widely studied and applied. Due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J4/02C09J11/04C09J11/06C09J11/08C09J7/10C09J7/38
CPCC09J4/06C09J11/04C09J11/06C09J11/08C09J7/385C09J7/10C08K2201/011C08K2201/01C08K2003/2241C08K2003/0856C08K2003/2296C08K2003/2227C08K2003/0806
Inventor 齐登武吴卫均
Owner 恩平市盈嘉丰胶粘制品有限公司
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