Electromagnetic shielding adhesive tape and preparation method thereof
An electromagnetic shielding and adhesive tape technology, applied in the direction of adhesives, other rubber adhesives, film/sheet adhesives, etc., can solve problems such as inability to adapt to electronic components, difficulty in repeated recycling, and residual tapes, etc., to achieve Improve the effect of shielding effect
Inactive Publication Date: 2022-07-12
苏州萍升源电子科技有限公司
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Problems solved by technology
The traditional tape is aluminum foil or copper foil tape, which has insufficient electromagnetic shielding energy efficiency, and is easy to break due to repeated use of copper foil or aluminum foil, and there will be residue when the tape falls off, which cannot be completely peeled off, making it difficult to recycle, use and tear at will. open, and the tensile strength is not enough to adapt to various shapes of electronic components
Method used
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[0037] like Figures 1 to 2 As shown, an electromagnetic shielding tape includes: peeling adhesive layer 2, plastic layer 3, first shielding layer 5, second shielding layer 6, and insulating layer 7 arranged in order from bottom to top; first shielding layer 5 It is composed of a mixture of adhesive and conductive powder, and the peeling adhesive layer 2 is composed of the following components in parts by weight: 15-30 parts of synthetic rubber, 10-20 parts of hydrogenated modified alicyclic hydrocarbon resin, phthalimethylene 10-30 parts of base diisocyanate, 5-15 parts of polyurethane, 0.2-1 part of vinyl bis-stearamide, 0.05-0.2 part of catalyst, and 20-30 parts of solvent.
[0038]Further, the material of the insulating layer 7 is low-density polyethylene, the insulating layer 7 is coated on the top of the second shielding layer 6, and the low-density polyethylene has good flexibility, electrical insulation, easy processing, and its chemical stability. Preferably, it is r...
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Abstract
The invention relates to an electromagnetic shielding adhesive tape and a preparation method thereof. The electromagnetic shielding adhesive tape comprises a stripping bonding layer, a molding layer, a first shielding layer, a second shielding layer and an insulating layer which are sequentially arranged from bottom to top, the first shielding layer is formed by mixing an adhesive and conductive powder, and the stripping adhesive layer is prepared from the following components in parts by weight: 15 to 30 parts of synthetic rubber, 10 to 20 parts of hydrogenated modified alicyclic hydrocarbon resin, 10 to 30 parts of xylylene diisocyanate, 5 to 15 parts of polyurethane, 0.2 to 1 part of ethylene bis stearamide, 0.05 to 0.2 part of a catalyst and 20 to 30 parts of a solvent. Through the arrangement, the adhesive tape has the advantages that the adhesive tape can be randomly overlapped for use and disassembled to control the electromagnetic shielding effect according to requirements, and meanwhile, the adhesive tape is convenient to recycle and high in tensile strength.
Description
technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to an electromagnetic shielding adhesive tape and a preparation method thereof. Background technique [0002] With the continuous development of science and technology, 3C products such as notebook computers, GPS, IPAD and mobile phones have become an indispensable part of people's daily life. While they bring convenience to our lives, they also bury people's health. To avoid hidden dangers, these electronic products emit high-frequency electromagnetic waves when they are in use. If the human body is exposed to strong electromagnetic waves for a long time, it will affect the health of the body and even induce cancer lesions. In addition, due to the increasingly complex working environment of modern electronic products, many electronic products The product itself is a complex digital and analog mixed system with many systems, so the electromagnetic radiation from the outside o...
Claims
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IPC IPC(8): C09J7/29C09J7/30C09J7/40C09J121/00C09J145/00C09J175/04C09J11/06
CPCC09J7/29C09J7/30C09J7/40C09J121/00C09J11/06C09J2301/16C09J2301/122C09J2301/408C08L45/00C08L75/04C08K5/20C08K5/29
Inventor 郭海涛闫李张旭
Owner 苏州萍升源电子科技有限公司