Double-sided foam tape with electromagnetic shielding function

A double-sided foam tape, electromagnetic shielding technology, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of high adhesion cushioning, easy removal, etc., achieve excellent resilience performance, meet The effect of cushioning and shock absorption requirements and good electromagnetic shielding effect

Pending Publication Date: 2020-05-01
江苏晶华新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no foam tape with high adhesion, high cushioning, easy removal, electromagnetic shielding function, and low shedding in the market

Method used

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  • Double-sided foam tape with electromagnetic shielding function
  • Double-sided foam tape with electromagnetic shielding function
  • Double-sided foam tape with electromagnetic shielding function

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Embodiment Construction

[0023] In order to fully understand the technical content of the present invention, the technical solution of the present invention will be further introduced and illustrated through specific examples below.

[0024] In addition, in the following description, unless otherwise specified, "%" and "part" which show an amount are based on weight. Unless otherwise indicated, all numbers expressing characteristic dimensions, quantities and physical properties used in the specification and claims are to be understood as being modified in all instances by the term "about". Therefore, unless stated to the contrary, the numerical parameters listed in the foregoing specification and appended claims are all approximations, and those skilled in the art can use the teachings disclosed herein to seek to obtain the desired properties and make appropriate changes to these parameters. approximation. The use of numerical ranges by endpoints includes all numbers within that range and any range w...

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Abstract

The invention discloses a double-sided foam adhesive tape with an electromagnetic shielding function. The double-sided foam adhesive tape comprises a first adhesive layer, a polyurethane elastomer layer, a polyurethane foam layer, a conductive substrate layer, a second adhesive layer and a release layer which are sequentially arranged from top to bottom, wherein the polyurethane foam layer is prepared from the following raw materials in percentage by weight: 87-97% of polyether polyol, 1-4% of isocyanate, 0.5-3% of a foaming agent, 0.5-3% of a catalyst and 0.5-3% of a foam stabilizer. The double-sided foam adhesive tape provided by the invention has good buffering and damping performance; and meanwhile, the electromagnetic shielding performance and the removability are good.

Description

technical field [0001] The invention relates to a double-sided adhesive tape, in particular to a double-sided foam adhesive tape with electromagnetic shielding function. Background technique [0002] In the 5G era, the transmission rate, frequency, and signal strength of communication equipment have changed significantly compared with the past. From core chips to radio frequency devices, from body materials to internal structures, components will usher in new changes. According to the key capability indicators of 5G released by the ITU (International Telecommunication Union), the main improvements compared with 4G are as follows: Compared with 4G, in terms of transmission rate, the peak rate of 5G is 10-20Gbps, which is 10-20 times higher. The rate will reach 0.1Gbps-1Gbps, an increase of 10-100 times. Due to the significant increase in signal transmission density, the electromagnetic interference solution to solve the internal space of 5G mobile phones (smart phones of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/26C09J7/25C09J7/28C09J7/21C08G18/48C08J9/12C08J9/14C08G101/00C08L75/08
CPCC09J7/29C08G18/4825C08G18/4829C08G18/4854C08G18/4837C08J9/125C08J9/146C09J2400/243C09J2475/006C09J2400/163C09J2400/263C09J2423/045C08G2101/00C08J2375/08C08J2203/142C08J2203/162C09J2433/00C08G2110/0083
Inventor 陆佳桢李洁周晓南
Owner 江苏晶华新材料科技有限公司
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