CN105131612A - Self-adhesive conductive silicone rubber electromagnetic shielding material - Google Patents
Self-adhesive conductive silicone rubber electromagnetic shielding material Download PDFInfo
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- CN105131612A CN105131612A CN201510621948.3A CN201510621948A CN105131612A CN 105131612 A CN105131612 A CN 105131612A CN 201510621948 A CN201510621948 A CN 201510621948A CN 105131612 A CN105131612 A CN 105131612A
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- electromagnetic shielding
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Abstract
The invention relates to a self-adhesive conductive silicone rubber electromagnetic shielding material. The self-adhesive conductive silicone rubber electromagnetic shielding material is characterized in that the electromagnetic shielding material is prepared from the following components by weight percent: 10 to 40% of silicone rubber, 1 to 20% of tackifier, 1 to 10% of coupling agent, 1 to 10% of curing agent and 50 to 85% of functional filler, wherein the functional filler includes conductive particles of conductive carbon black, nickel coated graphite, nickel coated glass beads, silver coated aluminum powder and silver coated glass beads, the average particle diameter is 0.01 to 500 micrometers, the impurity content is lower than 0.1%, and the moisture content is lower than 0.5%. The self-adhesive conductive silicone rubber electromagnetic shielding material has the functions of conduction and electromagnetic shielding and has a self-adhesive characteristic, poor electromagnetic sealing generated by manual assembly can be eliminated, the electromagnetic shielding effect of a product is good, and automatic assembly can be realized.
Description
[technical field]
The present invention relates to electromagnetic shielding material, particularly relate to one and there is autohension, the electromagnetic sealing that manual assembly produces can be reduced bad, the problems such as shield effectiveness difference, and automatic production autohension conductive silicon rubber electromagnetic shielding material can be realized.
[background technology]
Current various types of electronics has been widely used in all respects of social life.For ensureing the stability that electronic product uses and feasibility, many electronicss, as Set Top Box, communication base station, mobile phone, military electronic product etc. all need to carry out electromagnetic shielding process.If this class of electronic devices is in use subject to the impact of same frequency electromagnetic waves, be easy to produce signal bad, cause use stability under degradation consequence.Existing standard practice uses conductive rubber sealing-ring to carry out electromagnetic shielding process.But due to problems such as manual operation error and assembling gimmicks, assembling is bad to make electromagnetic sealing circle easily occur, thus affects the shield effectiveness of product.Therefore, must eliminate electromagnetic interference as much as possible, reduce manual operation error, to ensure the feasibility of product, but universal electromagnetic shielding conductive elastomeric material cannot meet the requirement to product feasibility.
[summary of the invention]
The present invention is intended to solve the problem, and provides one to have autohension, and can eliminate the electromagnetic sealing that manual assembly produces bad, product effectiveness is good, and can realize the autohension conductive silicon rubber electromagnetic shielding material of Automated assembly.
For achieving the above object, the invention provides a kind of self bonding conductive silicon rubber electromagnetic shielding material, it is characterized in that, this electromagnetic shielding material is composited by following component by weight percentage:
This electromagnetic shielding material is mixed mutually the silicon rubber of described ratio, tackifier, coupling agent, vulcanizing agent and functional stuffing, and described mixture is preformed into the design shape of product.
Described silicon rubber is the mixture of a class in methyl vinyl silicone rubber, methyl phenyl silicone rubber, trifluoropropyl siloxane, dimethyl silicone rubber or a few class.
Described tackifier be boron-containing compound, hydrosilyl group-containing siloxane oligomer, containing the mixture of one or more in phenyl or fat radical siloxane oligopolymer, Silatrane Derivatives.
Described coupling agent is the mixture of one or more in silane coupling agent, titanate coupling agent.
Described vulcanizing agent is organosilicon vulcanizing agent, and it is the mixture of in organo-peroxide, containing hydrogen silicone oil, catalyst made from platonic two kinds.
Described functional stuffing is the mixture of one or more in conductive carbon black, nickel bag graphite, nickel bag granulated glass sphere, silver-colored aluminium powder, silver-colored bag granulated glass sphere.
Described functional stuffing is the conductive particle of conductive graphitized carbon black, nickel bag graphite, nickel bag granulated glass sphere, silver-colored aluminium powder, silver-colored bag granulated glass sphere, and its median size is 0.01 ~ 500 micron, and foreign matter content is lower than 0.1%, and water content is lower than 0.5%.
Contribution of the present invention is, it efficiently solves traditional problem existing for manual electromagnetic shielding mode.Autohension conductive silicon rubber electromagnetic shielding material of the present invention premolding can be processed into the shape of customer need, between the position that two need that this electromagnetic shielding material can be placed in electronics by user connect or two-layer housing, with pressing machine pressurization, baking, by mutually bonding for connecting portion, and need not fix by the web member such as screw.It is bad that electromagnetic shielding material of the present invention can eliminate the electromagnetic sealing that manual assembly produces, and the effectiveness of product is good, and can realize Automated assembly, also can reduce cost of labor.
[embodiment]
The following example is further explanation of the present invention, does not constitute any limitation the present invention.
Embodiment 1
Get the graphitized carbon black powder that weight is 7kg, the nickel coated graphite powder of 12kg, the trimethyl borate of 0.4kg, 0.4kg silane coupling A-151, the methyl vinyl silicone rubber of 13kg mixes 30 minutes, after in two roller mill, add two two or four vulcanizing agents of 0.5kg open refining 20 minutes, form autohension conductive silicon rubber electromagnetic shielding material of the present invention, then this electromagnetic shielding material be pressed on vulcanizing press the joint strip of diameter 100mm.Joint strip is contained in the middle of bilevel metal cover board, covers cover plate, with the precompressed of 30kgf power, then put into baking box 160 DEG C of sulfurations 15 minutes, make double layer of metal cover plate firmly bonding.
After testing, the resistivity of this autohension conductive silicon rubber electromagnetic shielding material is 0.5 Ω * cm, and the bonding force of upper and lower double layer of metal cover plate is greater than 2MPa.Sample is in 85% humidity, and under 85 DEG C of temperature condition, after 1000 hours, bonding force and resistivity remain unchanged.
Embodiment 2
Get the silver powder that weight is 10kg, the nickel coated graphite powder of 10kg, the Silatrane Derivatives of 1kg, 0.5kg silane coupling A-171, the methyl vinyl silicone rubber of 10kg adds the containing hydrogen silicone oil 0.5kg of hydrogen content 0.36% in two roller mill, the Pt catalyzer of 0.05kg double-seal head Pt content 3000ppm carries out out refining 20 minutes, this matrix material is pressed on vulcanizing press the joint strip of diameter 100mm.Joint strip is arranged in the middle of bilevel metal cover board, covers cover plate, with the precompressed of 30kgf power, then put into baking box 120 DEG C of sulfurations 15 minutes.
After testing, this conductive rubber mixture resistivity is 0.05 Ω * cm, and upper and lower double layer of metal cover plate bonding force is greater than 4MPa.Sample is in 85% humidity, and under 85 DEG C of temperature condition, after 1000 hours, bonding force and resistivity remain unchanged.
Claims (8)
1. an autohension conductive silicon rubber electromagnetic shielding material, is characterized in that, this electromagnetic shielding material is composited by following component by weight percentage:
2. autohension conductive silicon rubber electromagnetic shielding material as claimed in claim 1, it is characterized in that, this electromagnetic shielding material is mixed mutually the silicon rubber of described ratio, tackifier, coupling agent, vulcanizing agent and functional stuffing, and described mixture is preformed into the design shape of product.
3. autohension conductive silicon rubber electromagnetic shielding material as claimed in claim 1 or 2, is characterized in that, described silicon rubber is the mixture of a class in methyl vinyl silicone rubber, methyl phenyl silicone rubber, trifluoropropyl siloxane, dimethyl silicone rubber or a few class.
4. autohension conductive silicon rubber electromagnetic shielding material as claimed in claim 1 or 2, it is characterized in that, described tackifier be boron-containing compound, hydrosilyl group-containing siloxane oligomer, containing the mixture of one or more in phenyl or fat radical siloxane oligopolymer, Silatrane Derivatives.
5. autohension conductive silicon rubber electromagnetic shielding material as claimed in claim 1 or 2, it is characterized in that, described coupling agent is the mixture of one or more in silane coupling agent, titanate coupling agent.
6. autohension conductive silicon rubber electromagnetic shielding material as claimed in claim 1 or 2, it is characterized in that, described vulcanizing agent is organosilicon vulcanizing agent, and it is the mixture of in organo-peroxide, containing hydrogen silicone oil, catalyst made from platonic two kinds.
7. autohension conductive silicon rubber electromagnetic shielding material as claimed in claim 1 or 2, it is characterized in that, described functional stuffing is the mixture of one or more in conductive carbon black, nickel bag graphite, nickel bag granulated glass sphere, silver-colored aluminium powder, silver-colored bag granulated glass sphere.
8. autohension conductive silicon rubber electromagnetic shielding material as claimed in claim 7, it is characterized in that, described functional stuffing is the conductive particle of conductive graphitized carbon black, nickel bag graphite, nickel bag granulated glass sphere, silver-colored aluminium powder, silver-colored bag granulated glass sphere, its median size is 0.01 ~ 500 micron, foreign matter content is lower than 0.1%, and water content is lower than 0.5%.
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| CN201510621948.3A CN105131612A (en) | 2015-09-25 | 2015-09-25 | Self-adhesive conductive silicone rubber electromagnetic shielding material |
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| CN201510621948.3A CN105131612A (en) | 2015-09-25 | 2015-09-25 | Self-adhesive conductive silicone rubber electromagnetic shielding material |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978102A (en) * | 2016-01-18 | 2017-07-25 | 深圳市海德讯科技有限公司 | A kind of high-performance liquid thermal transfer conducting resinl preparation method |
| CN107057367A (en) * | 2017-01-23 | 2017-08-18 | 青岛颐科密封材料有限公司 | One kind electromagnetic shielding sealing article and its manufacture craft |
| CN107546710A (en) * | 2016-02-25 | 2018-01-05 | 杨攀 | A kind of Waterproof cable joint |
| CN108314802A (en) * | 2018-01-24 | 2018-07-24 | 合肥尚强电气科技有限公司 | Electromagnetic shielding material for power supply equipment and preparation method thereof |
| CN108424653A (en) * | 2018-02-08 | 2018-08-21 | 东莞市雷兹盾电子材料有限公司 | A kind of SMD conductive rubber compositions can be used for alternative metals shrapnel |
| CN110003845A (en) * | 2019-04-17 | 2019-07-12 | 东莞市亚聚电子材料有限公司 | A kind of nickel bag graphite silicone resin electromagnetic shielding glue of high conductivity and preparation method thereof |
| CN110016230A (en) * | 2019-03-27 | 2019-07-16 | 深圳市腾顺电子材料有限公司 | A kind of solderability conductive rubber and preparation method thereof |
| CN110877424A (en) * | 2019-11-19 | 2020-03-13 | 樊伟 | Method for manufacturing silicon rubber |
| CN111961347A (en) * | 2020-08-27 | 2020-11-20 | 东莞市利群榕兴高分子科技有限公司 | High-conductivity fluorosilicone rubber composition, preparation method and electromagnetic shielding material |
| CN112961499A (en) * | 2021-03-10 | 2021-06-15 | 深圳市中欧新材料有限公司 | Conductive silicone rubber and preparation method thereof |
| CN113429712A (en) * | 2021-07-14 | 2021-09-24 | 上海熹贾精密技术有限公司 | Low-resistivity fluororubber for automobile fuel pipeline system and preparation method thereof |
| CN113956838A (en) * | 2021-11-02 | 2022-01-21 | 中国科学院长春应用化学研究所 | Radiation modified electromagnetic shielding silicone rubber self-adhesive tape and preparation method thereof |
| CN114343652A (en) * | 2021-12-06 | 2022-04-15 | 中国科学院深圳先进技术研究院 | Viscoelastic body surface dry electrode, viscoelastic conductive material and preparation method thereof |
| CN114700490A (en) * | 2022-03-15 | 2022-07-05 | 东北大学 | Preparation method of nickel-coated graphite composite particles and application of nickel-coated graphite composite particles in electromagnetic shielding field |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978102A (en) * | 2016-01-18 | 2017-07-25 | 深圳市海德讯科技有限公司 | A kind of high-performance liquid thermal transfer conducting resinl preparation method |
| CN107546710A (en) * | 2016-02-25 | 2018-01-05 | 杨攀 | A kind of Waterproof cable joint |
| CN107556694A (en) * | 2016-02-25 | 2018-01-09 | 杨攀 | A kind of battery screen rubber of Waterproof cable joint |
| CN107611919A (en) * | 2016-02-25 | 2018-01-19 | 杨攀 | A kind of Waterproof cable joint |
| CN107611920A (en) * | 2016-02-25 | 2018-01-19 | 杨攀 | A kind of Waterproof cable joint |
| CN107057367A (en) * | 2017-01-23 | 2017-08-18 | 青岛颐科密封材料有限公司 | One kind electromagnetic shielding sealing article and its manufacture craft |
| CN108314802A (en) * | 2018-01-24 | 2018-07-24 | 合肥尚强电气科技有限公司 | Electromagnetic shielding material for power supply equipment and preparation method thereof |
| CN108424653A (en) * | 2018-02-08 | 2018-08-21 | 东莞市雷兹盾电子材料有限公司 | A kind of SMD conductive rubber compositions can be used for alternative metals shrapnel |
| CN110016230A (en) * | 2019-03-27 | 2019-07-16 | 深圳市腾顺电子材料有限公司 | A kind of solderability conductive rubber and preparation method thereof |
| CN110003845A (en) * | 2019-04-17 | 2019-07-12 | 东莞市亚聚电子材料有限公司 | A kind of nickel bag graphite silicone resin electromagnetic shielding glue of high conductivity and preparation method thereof |
| CN110877424A (en) * | 2019-11-19 | 2020-03-13 | 樊伟 | Method for manufacturing silicon rubber |
| CN111961347A (en) * | 2020-08-27 | 2020-11-20 | 东莞市利群榕兴高分子科技有限公司 | High-conductivity fluorosilicone rubber composition, preparation method and electromagnetic shielding material |
| CN112961499A (en) * | 2021-03-10 | 2021-06-15 | 深圳市中欧新材料有限公司 | Conductive silicone rubber and preparation method thereof |
| CN113429712A (en) * | 2021-07-14 | 2021-09-24 | 上海熹贾精密技术有限公司 | Low-resistivity fluororubber for automobile fuel pipeline system and preparation method thereof |
| CN113956838A (en) * | 2021-11-02 | 2022-01-21 | 中国科学院长春应用化学研究所 | Radiation modified electromagnetic shielding silicone rubber self-adhesive tape and preparation method thereof |
| CN114343652A (en) * | 2021-12-06 | 2022-04-15 | 中国科学院深圳先进技术研究院 | Viscoelastic body surface dry electrode, viscoelastic conductive material and preparation method thereof |
| CN114700490A (en) * | 2022-03-15 | 2022-07-05 | 东北大学 | Preparation method of nickel-coated graphite composite particles and application of nickel-coated graphite composite particles in electromagnetic shielding field |
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Application publication date: 20151209 |