CN109334183A - Electromagnetic shielding composite material - Google Patents

Electromagnetic shielding composite material Download PDF

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Publication number
CN109334183A
CN109334183A CN201811232358.1A CN201811232358A CN109334183A CN 109334183 A CN109334183 A CN 109334183A CN 201811232358 A CN201811232358 A CN 201811232358A CN 109334183 A CN109334183 A CN 109334183A
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China
Prior art keywords
parts
layer
electromagnetic shielding
electromagnetic
composite material
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Application number
CN201811232358.1A
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Chinese (zh)
Inventor
李户林
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Chengdu Sidari Electronic Technology Co Ltd
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Chengdu Sidari Electronic Technology Co Ltd
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Priority to CN201811232358.1A priority Critical patent/CN109334183A/en
Publication of CN109334183A publication Critical patent/CN109334183A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06—Unsaturated polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C08K2003/387—Borates
    • 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
    • C08K2201/001—Conductive additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

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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)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of electromagnetic shielding composite materials, including electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, it is characterised in that；The absorbed layer includes 12-15 parts of conductive filler and 40-45 parts of matrix fillers in parts by weight；The ELECTROMAGNETIC REFLECTION layer includes 25-30 parts of fiber bottom and 50-55 points of rubber matrix filler；The separated type material is off-style paper layer or release film layer；The conductive filler includes nickel coated graphite powder, zinc powder and carbon fiber；Described matrix filler includes plasticizer and EVA；The fiber bottom is glass layer；The rubber base material unsaturated polyester resin, glycidyl ester epoxy resin and phenolic resin；It is using metal material as made of raw material that the technical solution that the present invention takes, which solves existing electromagnetic shielding material mostly, and not only expensive but also extension with service life can lead to the problem of effectiveness and gradually subside.

Description

Electromagnetic shielding composite material
Technical field
The present invention relates to technical field of electromagnetic shielding, and in particular to a kind of electromagnetic shielding composite material.
Background technique
With the improvement of living standards, more and more electric equipment products enter family；These electric appliances more or less can all produce Raw electromagnetic radiation, will lead to people more than electromagnetic radiation more than 2 milligauss and suffers from the disease, fuel factor, no fuel factor and accumulative effect The crowd that the compound injury of reply human body causes modern sub-health state is more and more, therefore the radiation pollution of household electrical appliance obtains More and more pay attention to people；The electromagnetic shielding material used both at home and abroad at present is mostly made of using metal material as raw material , not only expensive but also extension with service life can lead to the problem of effectiveness and gradually subside.
Summary of the invention
The purpose of the present invention is to provide a kind of electromagnetic shielding composite material, solve existing electromagnetic shielding material mostly and be with Metal material is made of raw material, and not only expensive but also extension with service life can generate effectiveness gradually The problem of recession.
In order to solve the above technical problems, the invention adopts the following technical scheme: a kind of electromagnetic shielding composite material, including Electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, it is characterised in that；The absorbed layer in parts by weight, includes The matrix fillers of 12-15 parts of conductive filler and 40-45 part；The ELECTROMAGNETIC REFLECTION layer include 25-30 parts fiber bottom and 50-55 points of rubber matrix filler；The separated type material is off-style paper layer or release film layer；The conductive filler includes nickel packet Graphite powder, zinc powder and carbon fiber；Described matrix filler includes plasticizer and EVA；The fiber bottom is glass layer；Institute State rubber base material unsaturated polyester resin, glycidyl ester epoxy resin and phenolic resin；
Further, the plasticizer include para Toluic Acid, methyl benzoate, P-hydroxybenzoic acid, dibutyl ester, ethylenediamine, Zinc borate, paraffin, glycerol and soda ash；
Further, the EVA is the ethylene-vinyl acetate copolymer that vinyl acetate content is 20%-28%；
Further, the nickel coated graphite powder is 40-45 parts；The zinc powder is 10-18 parts；The carbon fiber is 25-36 parts；
Further, the plasticizer in parts by weight, including 26-28 para Toluic Acid, 35-40 parts of P-hydroxybenzoic acid, 15-20 parts of dibutyl esters, 16-18 parts of ethylenediamines, 3-5 parts of zinc borates, 10-15 parts of paraffin, 12-15 parts of glycerol and 5-7 parts of soda ash；
Further technical solution is that the glass layer is chopped carbon fiber；The chopped carbon fiber length is 10- 13mm；The filament diameter of the chopped carbon fiber is 5um.
Compared with prior art, the beneficial effects of the present invention are:
1, electromagnetic absorption layer and reflecting layer are combined, can either electromagnetic wave absorption again can reflection electromagnetic wave, enhance pair The shield effectiveness of electromagnetism；
2, nickel coated graphite powder is selected in conductive filler, while further increasing electric conductivity, can reduce cost；
3, the raw material used is reusable, improves sustainability.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to Limit the present invention.
Embodiment 1: a kind of electromagnetic shielding composite material, including electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, It is characterized in that；The absorbed layer includes 12-15 parts of conductive filler and 40-45 parts of matrix fillers in parts by weight； The ELECTROMAGNETIC REFLECTION layer includes 25-30 parts of fiber bottom and 50-55 points of rubber matrix filler；The separated type material be from Type paper layer or release film layer；The conductive filler includes nickel coated graphite powder, zinc powder and carbon fiber；Described matrix filler includes Plasticizer and EVA；The fiber bottom is glass layer；The rubber base material unsaturated polyester resin, glycidol Esters epoxy resin and phenolic resin；Electromagnetic absorption layer and reflecting layer are combined, can either electromagnetic wave absorption again can be anti- Radio magnetic wave enhances the shield effectiveness to electromagnetism；Nickel coated graphite powder is selected in conductive filler, is further increasing electric conductivity While energy, cost can reduce；The raw material of use is reusable, improves sustainability.
Embodiment 2: a kind of electromagnetic shielding composite material, including electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, It is characterized in that；The absorbed layer includes 12-15 parts of conductive filler and 40-45 parts of matrix fillers in parts by weight； The ELECTROMAGNETIC REFLECTION layer includes 25-30 parts of fiber bottom and 50-55 points of rubber matrix filler；The separated type material be from Type paper layer or release film layer；The conductive filler includes nickel coated graphite powder, zinc powder and carbon fiber；Described matrix filler includes Plasticizer and EVA；The fiber bottom is glass layer；The rubber base material unsaturated polyester resin, glycidol Esters epoxy resin and phenolic resin；The plasticizer includes para Toluic Acid, methyl benzoate, P-hydroxybenzoic acid, two fourths Ester, ethylenediamine, zinc borate, paraffin, glycerol and soda ash；The raw material acquisition of plasticizer is simple and convenient, and without carcinogen and has Malicious composition can reduce the harm to human body with being widely applied with the equipment such as household electrical appliances.
Embodiment 3: a kind of electromagnetic shielding composite material, including electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, It is characterized in that；The absorbed layer includes 12-15 parts of conductive filler and 40-45 parts of matrix fillers in parts by weight； The ELECTROMAGNETIC REFLECTION layer includes 25-30 parts of fiber bottom and 50-55 points of rubber matrix filler；The separated type material be from Type paper layer or release film layer；The conductive filler includes nickel coated graphite powder, zinc powder and carbon fiber；Described matrix filler includes Plasticizer and EVA；The fiber bottom is glass layer；The rubber base material unsaturated polyester resin, glycidol Esters epoxy resin and phenolic resin；The EVA is the ethylene-vinyl acetate copolymer that vinyl acetate content is 20%-28%；Second Sour ethylene contents are that the EVA of 20%-28% can play optimal adhesive force in matrix fillers.
Embodiment 4: a kind of electromagnetic shielding composite material, including electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, It is characterized in that；The absorbed layer includes 12-15 parts of conductive filler and 40-45 parts of matrix fillers in parts by weight； The ELECTROMAGNETIC REFLECTION layer includes 25-30 parts of fiber bottom and 50-55 points of rubber matrix filler；The separated type material be from Type paper layer or release film layer；The conductive filler includes nickel coated graphite powder, zinc powder and carbon fiber；Described matrix filler includes Plasticizer and EVA；The fiber bottom is glass layer；The rubber base material unsaturated polyester resin, glycidol Esters epoxy resin and phenolic resin；The nickel coated graphite powder is 40-45 parts；The zinc powder is 10-18 parts；The carbon fiber is 25-36 parts；
Embodiment 5: a kind of electromagnetic shielding composite material, including electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, feature It is；The absorbed layer includes 12-15 parts of conductive filler and 40-45 parts of matrix fillers in parts by weight；It is described ELECTROMAGNETIC REFLECTION layer includes 25-30 parts of fiber bottom and 50-55 points of rubber matrix filler；The separated type material is release paper Layer or release film layer；The conductive filler includes nickel coated graphite powder, zinc powder and carbon fiber；Described matrix filler includes plasticising Agent and EVA；The fiber bottom is glass layer；The rubber base material unsaturated polyester resin, glycidol esters Epoxy resin and phenolic resin；The plasticizer in parts by weight, including 26-28 para Toluic Acid, 35-40 parts of para hydroxybenzenes Formic acid, 15-20 part dibutyl ester, 16-18 parts of ethylenediamines, 3-5 parts of zinc borates, 10-15 parts of paraffin, 12-15 parts of glycerol and 5-7 parts are pure Alkali.
Embodiment 6: a kind of electromagnetic shielding composite material, including electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, It is characterized in that；The absorbed layer includes that 12-15 parts of conductive filler and 40-45 parts of matrix are filled out in parts by weight Material；The ELECTROMAGNETIC REFLECTION layer includes 25-30 parts of fiber bottom and 50-55 points of rubber matrix filler；The separated type material For off-style paper layer or release film layer；The conductive filler includes nickel coated graphite powder, zinc powder and carbon fiber；Described matrix filler packet Plasticizer and EVA are included；The fiber bottom is glass layer；The rubber base material unsaturated polyester resin shrinks Glyceride type epoxy resin and phenolic resin；The glass layer is chopped carbon fiber；The chopped carbon fiber length is 10- 13mm；The filament diameter of the chopped carbon fiber is 5um.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this Shen It please be within disclosed scope and spirit.It more specifically, within the scope of the present disclosure and claims, can be to master The building block and/or layout for inscribing composite configuration carry out a variety of variations and modifications.In addition to what is carried out to building block and/or layout Outside modification and improvement, to those skilled in the art, other purposes also be will be apparent.

Claims (6)

1. a kind of electromagnetic shielding composite material, including electromagnetic absorption layer, ELECTROMAGNETIC REFLECTION layer and separated type material layer, it is characterised in that； The absorbed layer includes 12-15 parts of conductive filler and 40-45 parts of matrix fillers in parts by weight；The electromagnetism Reflecting layer includes 25-30 parts of fiber bottom and 50-55 points of rubber matrix filler；The separated type material be off-style paper layer or Release film layer；The conductive filler includes nickel coated graphite powder, zinc powder and carbon fiber；Described matrix filler include plasticizer and EVA；The fiber bottom is glass layer；The rubber base material unsaturated polyester resin, glycidol esters epoxy Resin and phenolic resin.
2. electromagnetic shielding composite material according to claim 1, it is characterised in that: the plasticizer includes to benzene first Acid, methyl benzoate, P-hydroxybenzoic acid, dibutyl ester, ethylenediamine, zinc borate, paraffin, glycerol and soda ash.
3. electromagnetic shielding composite material according to claim 1, it is characterised in that: the EVA is that vinyl acetate content is The ethylene-vinyl acetate copolymer of 20%-28%.
4. electromagnetic shielding composite material according to claim 1, it is characterised in that: the nickel coated graphite powder is 40-45 parts； The zinc powder is 10-18 parts；The carbon fiber is 25-36 parts.
5. electromagnetic shielding composite material according to claim 2, it is characterised in that: the plasticizer is according to parts by weight It calculates, including 26-28 para Toluic Acid, 35-40 parts of P-hydroxybenzoic acid, 15-20 parts of dibutyl esters, 16-18 parts of ethylenediamines, 3-5 parts of boron Sour zinc, 10-15 part paraffin, 12-15 parts of glycerol and 5-7 parts of soda ash.
6. electromagnetic shielding composite material according to claim 1, it is characterised in that: the glass layer is the carbon fiber that is chopped Dimension；The chopped carbon fiber length is 10-13mm；The filament diameter of the chopped carbon fiber is 5um.
CN201811232358.1A 2018-10-22 2018-10-22 Electromagnetic shielding composite material Withdrawn CN109334183A (en)

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Application Number Priority Date Filing Date Title
CN201811232358.1A CN109334183A (en) 2018-10-22 2018-10-22 Electromagnetic shielding composite material

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113185799A (en) * 2021-04-28 2021-07-30 衢州艾科科技有限公司 Composite material with electromagnetic shielding function and preparation method thereof
CN113429743A (en) * 2021-07-13 2021-09-24 郑州佛光发电设备有限公司 Electromagnetic shielding material and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113185799A (en) * 2021-04-28 2021-07-30 衢州艾科科技有限公司 Composite material with electromagnetic shielding function and preparation method thereof
CN113429743A (en) * 2021-07-13 2021-09-24 郑州佛光发电设备有限公司 Electromagnetic shielding material and preparation method thereof

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