CN112322043A - Preparation method and application of electromagnetic shielding rubber material with characteristics of wide frequency domain and high efficiency - Google Patents
Preparation method and application of electromagnetic shielding rubber material with characteristics of wide frequency domain and high efficiency Download PDFInfo
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- CN112322043A CN112322043A CN202011311926.4A CN202011311926A CN112322043A CN 112322043 A CN112322043 A CN 112322043A CN 202011311926 A CN202011311926 A CN 202011311926A CN 112322043 A CN112322043 A CN 112322043A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 88
- 239000000463 material Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 12
- 239000012763 reinforcing filler Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 229920002379 silicone rubber Polymers 0.000 claims description 10
- 229920005560 fluorosilicone rubber Polymers 0.000 claims description 8
- CCNDOQHYOIISTA-UHFFFAOYSA-N 1,2-bis(2-tert-butylperoxypropan-2-yl)benzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1C(C)(C)OOC(C)(C)C CCNDOQHYOIISTA-UHFFFAOYSA-N 0.000 claims description 6
- 239000002041 carbon nanotube Substances 0.000 claims description 6
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 2
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- WRXCBRHBHGNNQA-UHFFFAOYSA-N (2,4-dichlorobenzoyl) 2,4-dichlorobenzenecarboperoxoate Chemical compound ClC1=CC(Cl)=CC=C1C(=O)OOC(=O)C1=CC=C(Cl)C=C1Cl WRXCBRHBHGNNQA-UHFFFAOYSA-N 0.000 claims 1
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 claims 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims 1
- 229920002554 vinyl polymer Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 description 21
- 238000001816 cooling Methods 0.000 description 20
- 238000007747 plating Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 229910021485 fumed silica Inorganic materials 0.000 description 8
- 239000004945 silicone rubber Substances 0.000 description 8
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 239000002923 metal particle Substances 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- MXLBKVCGLRNKBW-UHFFFAOYSA-N C(=C)OO[Si](C(C)(C)C)(C(C)(C)C)C(C)(C)C Chemical compound C(=C)OO[Si](C(C)(C)C)(C(C)(C)C)C(C)(C)C MXLBKVCGLRNKBW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method and application of an electromagnetic shielding rubber material with the characteristics of wide frequency domain and high efficiency, and relates to a preparation method and application field of a shielding rubber material with three main components of a rubber matrix, a coupling agent and conductive particles. The rubber material is used as a continuous phase, the nickel-plated conductive particles are added into the rubber material as a disperse phase, the bonding fastness of the conductive particles and the rubber matrix can be improved by adding the coupling agent, and the rubber material for electromagnetic shielding is prepared by combining three components of the rubber matrix, the compatilizer and the conductive particles. The electromagnetic shielding rubber material prepared by the invention has good shielding effect on electromagnetic waves of 2MHz-40 GHz.
Description
Technical Field
The invention relates to a preparation method and application of an electromagnetic shielding rubber material with the characteristics of wide frequency domain and high efficiency.
Background
The invention relates to a preparation method of a shielding rubber material with three main components of a rubber matrix, a coupling agent and conductive particles, and the research background of the invention is described below.
With the development of modern science and technology, electronic, electrical and communication technologies are widely used, and the devices can generate electromagnetic radiation with various frequencies when in operation. Electromagnetic interference can affect the normal operation of information systems and sensitive equipment, and electromagnetic leakage can threaten the safety of electronic information. Therefore, it is of great significance to adopt effective measures to reduce the electromagnetic radiation intensity and reduce the magnetic radiation pollution. The electromagnetic radiation is reduced by two ways, namely electromagnetic shielding and electromagnetic absorption, wherein the electromagnetic shielding mainly reflects electromagnetic waves so that the electromagnetic waves cannot enter or escape from a range to be protected.
The metal particles are good electromagnetic shielding fillers, and can obtain a certain shielding effect by mixing the metal particles into rubber, plastic or dispersing the metal particles into a coating material. However, the defects of high density and high cost of the metal filler directly cause high density and high price of the electromagnetic shielding rubber, and limit the application of the electromagnetic shielding rubber. The electromagnetic shielding rubber compound prepared by adopting the nickel-plated carbon nanotube, the nickel-plated graphite and the nickel-plated glass bead has the characteristics of low price, low density and high shielding efficiency, and can remarkably expand the application range of the electromagnetic shielding rubber.
Disclosure of Invention
The invention provides a preparation method and application of an electromagnetic shielding rubber material based on nickel-plated nanoparticles, aiming at overcoming the defects of high density, high price and the like of the existing electromagnetic shielding rubber material.
The invention relates to a preparation method and application of an electromagnetic shielding rubber material with the characteristics of wide frequency domain and high efficiency.
The electromagnetic shielding rubber material prepared by the invention has the characteristics of low price, low density and high shielding efficiency, and also has the characteristic of wide frequency domain. The method comprises the following specific steps:
(1) taking 100 parts of any one of silicon rubber, fluorosilicone rubber, borosilicate rubber and ethylene propylene rubber, and thinly passing the mixture on an open mill. (2) And sequentially adding 20-30 parts of reinforcing filler, 200-350 parts of nickel-plated nano particles, 2-4 parts of coupling agent and 1-3 parts of vulcanizing agent into the rubber matrix, wherein the number of triangular packages is not less than 8 in the mixing process, and the mixing time is not less than 40 min.
(3) And (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
The invention has the beneficial effects that:
the invention adopts the electromagnetic shielding rubber material with the shielding effect on electromagnetic waves, has the characteristic of wide shielding frequency band and has strong electromagnetic wave shielding capability in the range of 2MHz to 40 GHz.
Secondly, the electromagnetic shielding rubber material based on the nickel-plated nano particles has the characteristics of low price, low density and high shielding efficiency.
Detailed Description
The following examples are further illustrative of the present invention and are not intended to limit the scope of the present invention.
Example 1: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of silicone rubber, and thinly passing the silicone rubber on an open mill.
(2): 30 parts of reinforcing filler fumed silica, 270 parts of nickel-plated graphite flakes (the nickel plating amount is 30% and the particle size is 20 mu m), 3 parts of vinyl tri-tert-butyl peroxy silane and 2 parts of dicumyl peroxide are sequentially added into a rubber matrix, the number of triangular packages is not less than 8 in the mixing process, and the mixing time is 45 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 41-70 dB in the frequency range of 2MHz-40 GHz.
Example 2: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of silicone rubber, and thinly passing the silicone rubber on an open mill.
(2): 20 parts of reinforcing filler fumed silica, 200 parts of nickel-plated glass beads (the nickel plating amount is 20% and the particle size is 40 mu m), 2 parts of gamma-aminopropyltriethoxysilane and 1 part of 2, 4-dichloroperoxybenzoyl are sequentially added into a rubber matrix, the number of triangular packages in the mixing process is not less than 8, and the mixing time is 40 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 30-50 dB within the frequency range of 2MHz-40 GHz.
Example 3: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of fluorosilicone rubber, and thinly passing the fluorosilicone rubber on an open mill.
(2): 20 parts of reinforcing filler fumed silica, 200 parts of nickel-plated carbon nanotubes (the nickel plating amount is 5 percent, and the particle size is 15 mu m), 4 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane and 3 parts of di- (tert-butyl peroxy isopropyl) benzene are sequentially added into a rubber matrix, the number of triangular packages is not less than 8 in the mixing process, and the mixing time is 40 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 43-55 dB in the frequency range of 2MHz-40 GHz.
Example 4: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of fluorosilicone rubber, and thinly passing the fluorosilicone rubber on an open mill.
(2): 20 parts of reinforcing filler fumed silica, 200 parts of nickel-plated carbon nanotubes (the nickel plating amount is 5 percent, and the particle size is 15 mu m), 4 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane and 3 parts of di- (tert-butyl peroxy isopropyl) benzene are sequentially added into a rubber matrix, the number of triangular packages is not less than 8 in the mixing process, and the mixing time is 40 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 43-55 dB in the frequency range of 2MHz-40 GHz.
Example 5: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of borosilicate rubber, and thinly passing the borosilicate rubber on an open mill.
(2): 25 parts of reinforcing filler fumed silica, 350 parts of nickel-plated glass beads (the nickel plating amount is 5 percent and the particle size is 1 mu m), 4 parts of gamma-methacryloxypropyltrimethoxysilane and 3 parts of 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane are sequentially added into a rubber matrix, the number of triangular packages is not less than 8 in the mixing process, and the mixing time is 50 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 75-85dB in the frequency range of 2MHz-40 GHz.
Example 6: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of ethylene propylene rubber, and thinly passing the ethylene propylene rubber on an open mill.
(2): 20 parts of reinforcing filler super wear-resistant carbon black, 200 parts of nickel-plated graphite sheets (the nickel plating amount is 5 percent and the particle size is 40 mu m), 4 parts of vinyl triethoxysilane and 3 parts of 2, 5-dimethyl-2, 5-bis (tert-butyl peroxide) hexane are sequentially added into a rubber matrix, the number of triangular packages is not less than 8 in the mixing process, and the mixing time is 40 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 35-50 dB within the frequency range of 2MHz-40 GHz.
Example 7: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of silicone rubber, and thinly passing the silicone rubber on an open mill.
(2): 20 parts of reinforcing filler fumed silica, 350 parts of nickel-plated glass beads (the nickel plating amount is 30% and the particle size is 1 mu m), 4 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane and 3 parts of di- (tert-butyl peroxy isopropyl) benzene are sequentially added into a rubber matrix, the number of triangular packages is not less than 8 in the mixing process, and the mixing time is 50 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 65-80 dB in the frequency range of 2MHz-40 GHz.
Example 8: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of silicone rubber, and thinly passing the silicone rubber on an open mill.
(2): 30 parts of reinforcing filler fumed silica, 200 parts of nickel-plated carbon nanotubes (the nickel plating amount is 10 percent, and the particle size is 40 mu m), 4 parts of vinyltrimethoxysilane and 3 parts of di- (tert-butyl peroxy isopropyl) benzene are sequentially added into a rubber matrix, the number of triangular packages in the mixing process is not less than 8, and the mixing time is 45 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 45-55 dB within the frequency range of 2MHz-40 GHz.
Example 9: an electromagnetic shielding rubber material with wide frequency domain and high efficiency is prepared through the following steps.
(1): taking 100 parts of fluorosilicone rubber, and thinly passing the fluorosilicone rubber on an open mill.
(2): 30 parts of reinforcing filler fumed silica, 300 parts of nickel-plated carbon nanotubes (the nickel plating amount is 15% and the particle size is 10 mu m), 2 parts of gamma-aminopropyltriethoxysilane and 3 parts of di- (tert-butyl peroxy isopropyl) benzene are sequentially added into a rubber matrix, the number of triangular packages is not less than 8 in the mixing process, and the mixing time is 45 min.
(3): and (3) placing the mixed rubber material in air for cooling, and cooling to obtain the electromagnetic shielding rubber material.
(4): the electromagnetic shielding rubber has the shielding effectiveness of 50-65 dB within the frequency range of 2MHz-40 GHz.
Claims (6)
1. A preparation method and application of electromagnetic shielding rubber material with wide frequency domain and high efficiency are characterized in that the method comprises the following steps:
an electromagnetic shielding rubber material with wide frequency domain and high efficiency is characterized in that a large number of conductive particles are uniformly distributed in a rubber matrix, and the electromagnetic shielding rubber material comprises the following components in parts by mass: 100 parts of rubber matrix, 20-30 parts of reinforcing filler, 200-350 parts of conductive particles, 2-4 parts of coupling agent and 1-3 parts of vulcanizing agent.
2. An electromagnetic shielding rubber material according to claim 1, wherein: the nickel-plated conductive particles are any one or more of nickel-plated carbon nanotubes, nickel-plated graphite and nickel-plated glass beads.
3. An electromagnetic shielding rubber material according to claim 1, wherein: the content of nickel in the nickel-plated conductive particles is 5-30%, and the particle size of the silver (nickel) -plated conductive particles is 1-40 μm.
4. An electromagnetic shielding rubber material according to claim 1, wherein: the vulcanizing agents are dicumyl peroxide, 2, 4-dichloro benzoyl peroxide, di- (tert-butyl peroxy isopropyl) benzene and 2, 5-dimethyl-2, 5-bis (tert-butyl peroxide) hexane.
5. An electromagnetic shielding rubber material according to claim 1, wherein: the rubber material is silicon rubber, fluorosilicone rubber, borosilicate rubber and ethylene propylene rubber.
6. An electromagnetic shielding rubber material according to claim 1, wherein: the coupling agent is vinyl tri-tert-butylperoxy silane, gamma-aminopropyl triethoxysilane, gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane, gamma-methacryloxypropyl trimethoxysilane, vinyl triethoxysilane, and vinyl trimethoxysilane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011311926.4A CN112322043A (en) | 2020-11-20 | 2020-11-20 | Preparation method and application of electromagnetic shielding rubber material with characteristics of wide frequency domain and high efficiency |
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| CN202011311926.4A CN112322043A (en) | 2020-11-20 | 2020-11-20 | Preparation method and application of electromagnetic shielding rubber material with characteristics of wide frequency domain and high efficiency |
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| CN112322043A true CN112322043A (en) | 2021-02-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113980475A (en) * | 2021-10-08 | 2022-01-28 | 西北橡胶塑料研究设计院有限公司 | Low-density wide-frequency-band high-shielding-efficiency oil-resistant fluorosilicone rubber material and preparation method thereof |
| CN114085533A (en) * | 2021-10-08 | 2022-02-25 | 西北橡胶塑料研究设计院有限公司 | High-strength, wide-frequency-band and high-shielding-efficiency silicone rubber material and preparation method thereof |
-
2020
- 2020-11-20 CN CN202011311926.4A patent/CN112322043A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113980475A (en) * | 2021-10-08 | 2022-01-28 | 西北橡胶塑料研究设计院有限公司 | Low-density wide-frequency-band high-shielding-efficiency oil-resistant fluorosilicone rubber material and preparation method thereof |
| CN114085533A (en) * | 2021-10-08 | 2022-02-25 | 西北橡胶塑料研究设计院有限公司 | High-strength, wide-frequency-band and high-shielding-efficiency silicone rubber material and preparation method thereof |
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Application publication date: 20210205 |