CN106280383A - A kind of electromagnetic protection Special flexible material - Google Patents
A kind of electromagnetic protection Special flexible material Download PDFInfo
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- CN106280383A CN106280383A CN201610681540.XA CN201610681540A CN106280383A CN 106280383 A CN106280383 A CN 106280383A CN 201610681540 A CN201610681540 A CN 201610681540A CN 106280383 A CN106280383 A CN 106280383A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
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- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- 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
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- 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
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- 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
- H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a kind of electromagnetic protection Special flexible material and preparation method thereof, described electromagnetic protection Special flexible material, includes modified resin 26 32 parts, polypropylene 20 25 parts, methyl hydroxybenzoate 8 12 parts, dodecylbenzene sodium sulfonate 15 parts, 0.1 0.5 parts of improved silica powder, glycerin ether 0.1 0.5 parts, white carbon black 0.1 0.5 parts, stalk fibre 26 parts according to the primary raw material of weight portion.Electromagnetic protection Special flexible material excellent combination property in the present invention, has the advantages such as molding processibility is good, pliability is good, with low cost.
Description
Technical field
The present invention relates to a kind of technical field of polymer materials, specifically a kind of electromagnetic protection Special flexible material and system thereof
Preparation Method.
Background technology
The application of current electromagnetic protective material is more and more, but owing to its pliability is the highest, these problems all have a strong impact on
The life and reliability of microwave defense material.Flexible material is not only to meet the requirement folding, bending, and to have certain
Intensity is to ensure the application request of product.
Summary of the invention
It is an object of the invention to provide electromagnetic protection Special flexible material and preparation method thereof, to solve above-mentioned background skill
The problem proposed in art.
For achieving the above object, the present invention provides following technical scheme:
A kind of electromagnetic protection Special flexible material, includes according to the primary raw material of weight portion: modified resin 26-32 part, polypropylene
20-25 part, methyl hydroxybenzoate 8-12 part, dodecylbenzene sodium sulfonate 1-5 part, improved silica powder 0.1-0.5 part,
Glycerin ether 0.1-0.5 part, white carbon black 0.1-0.5 part, stalk fibre 2-6 part.
As the further scheme of the present invention: include according to the primary raw material of weight portion: modified resin 27 parts, polypropylene 22
Part, methyl hydroxybenzoate 11 parts, dodecylbenzene sodium sulfonate 3 parts, 0.4 part of improved silica powder, glycerin ether 0.3 part,
White carbon black 0.2 part, stalk fibre 4 parts.
As the further scheme of the present invention: the preparation method of described modified resin is: by Polyethylene Glycol, poly-terephthaldehyde
Acid butanediol ester, Merlon join reactor with acrylic resin, 113 DEG C of constant temperature 1h, are subsequently added citric acid stirring, cold
Obtain the most afterwards.
As the further scheme of the present invention: the preparation method of described improved silica powder is: by ceramic particle, height
Ridge soil carries out vortex mixing with SiO 2 powder, is subsequently added difluoro-benzoic acid, reacts 30min, cool down post-drying under 27MPa
Obtain.
The preparation method of described electromagnetic protection Special flexible material, concretely comprises the following steps:
(1) first, improved silica powder, white carbon black and stalk fibre 80 DEG C are vacuum dried 6h, are subsequently added to modified tree
In fat and stir, it is allowed to dispersion and obtains mixture；Then, mixture is added polypropylene, methyl hydroxybenzoate, 12
Carry out sucking filtration after sodium alkyl benzene sulfonate, fully mixing, put into 30 DEG C of oven drying 12h, obtain mixture I；
(2) then, with glycerin ether, mixture I being carried out water-bath, the temperature of water-bath is 42 DEG C-60 DEG C, and the time is 15min-
30min, is subsequently added to double screw extruder, and screw speed is set as 452r/min, and through melt extruding, water-cooled pelletizing obtains
Pellet；Then, forced air drying 2h at 110 DEG C, uses injection machine injection mo(u)lding, obtains electromagnetic protection Special flexible material.
As the further scheme of the present invention: in step (2), the temperature of water-bath is 53 DEG C, the time is 21min.
Compared with prior art, the invention has the beneficial effects as follows:
Electromagnetic protection Special flexible material excellent combination property in the present invention, has that molding processibility is good, pliability is good, low cost
The advantage such as honest and clean.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Embodiment 1
A kind of electromagnetic protection Special flexible material, includes according to the primary raw material of weight portion: modified resin 26 parts, polypropylene 20
Part, methyl hydroxybenzoate 8 parts, dodecylbenzene sodium sulfonate 1 part, 0.1 part of improved silica powder, glycerin ether 0.1 part, charcoal
Black 0.1 part, stalk fibre 2 parts；The preparation method of described modified resin is: by Polyethylene Glycol, polybutylene terephthalate (PBT),
Merlon and acrylic resin join reactor, 113 DEG C of constant temperature 1h, are subsequently added citric acid stirring, obtain after cooling；Institute
The preparation method stating improved silica powder is: with SiO 2 powder, ceramic particle, Kaolin are carried out vortex mixing, with
Rear addition difluoro-benzoic acid, reacts 30min, cools down post-drying and get final product under 27MPa.
The preparation method of described electromagnetic protection Special flexible material, concretely comprises the following steps:
(1) first, improved silica powder, white carbon black and stalk fibre 80 DEG C are vacuum dried 6h, are subsequently added to modified tree
In fat and stir, it is allowed to dispersion and obtains mixture；Then, mixture is added polypropylene, methyl hydroxybenzoate, 12
Carry out sucking filtration after sodium alkyl benzene sulfonate, fully mixing, put into 30 DEG C of oven drying 12h, obtain mixture I；
(2) then, with glycerin ether, mixture I being carried out water-bath, the temperature of water-bath is 42 DEG C, and the time is 15min, is subsequently added to
Double screw extruder, screw speed is set as 452r/min, and through melt extruding, water-cooled pelletizing obtains pellet；Then, 110
Forced air drying 2h at DEG C, uses injection machine injection mo(u)lding, obtains electromagnetic protection Special flexible material.
Embodiment 2
A kind of electromagnetic protection Special flexible material, includes according to the primary raw material of weight portion: modified resin 27 parts, polypropylene 22
Part, methyl hydroxybenzoate 11 parts, dodecylbenzene sodium sulfonate 3 parts, 0.4 part of improved silica powder, glycerin ether 0.3 part,
White carbon black 0.2 part, stalk fibre 4 parts；The preparation method of described modified resin is: by Polyethylene Glycol, polybutylene terephthalate
Ester, Merlon and acrylic resin join reactor, 113 DEG C of constant temperature 1h, are subsequently added citric acid stirring, after cooling
Arrive；The preparation method of described improved silica powder is: ceramic particle, Kaolin are carried out vortex with SiO 2 powder and mixed
Even, it is subsequently added difluoro-benzoic acid, reacts 30min under 27MPa, cool down post-drying and get final product.
The preparation method of described electromagnetic protection Special flexible material, concretely comprises the following steps:
(1) first, improved silica powder, white carbon black and stalk fibre 80 DEG C are vacuum dried 6h, are subsequently added to modified tree
In fat and stir, it is allowed to dispersion and obtains mixture；Then, mixture is added polypropylene, methyl hydroxybenzoate, 12
Carry out sucking filtration after sodium alkyl benzene sulfonate, fully mixing, put into 30 DEG C of oven drying 12h, obtain mixture I；
(2) then, with glycerin ether, mixture I being carried out water-bath, the temperature of water-bath is 53 DEG C, and the time is 21min, is subsequently added to
Double screw extruder, screw speed is set as 452r/min, and through melt extruding, water-cooled pelletizing obtains pellet；Then, 110
Forced air drying 2h at DEG C, uses injection machine injection mo(u)lding, obtains electromagnetic protection Special flexible material.
Embodiment 3
A kind of electromagnetic protection Special flexible material, includes according to the primary raw material of weight portion: modified resin 32 parts, polipropene 25
Part, methyl hydroxybenzoate 12 parts, dodecylbenzene sodium sulfonate 5 parts, 0.5 part of improved silica powder, glycerin ether 0.5 part,
White carbon black 0.5 part, stalk fibre 6 parts；The preparation method of described modified resin is: by Polyethylene Glycol, polybutylene terephthalate
Ester, Merlon and acrylic resin join reactor, 113 DEG C of constant temperature 1h, are subsequently added citric acid stirring, after cooling
Arrive；The preparation method of described improved silica powder is: ceramic particle, Kaolin are carried out vortex with SiO 2 powder and mixed
Even, it is subsequently added difluoro-benzoic acid, reacts 30min under 27MPa, cool down post-drying and get final product.
The preparation method of described electromagnetic protection Special flexible material, concretely comprises the following steps:
(1) first, improved silica powder, white carbon black and stalk fibre 80 DEG C are vacuum dried 6h, are subsequently added to modified tree
In fat and stir, it is allowed to dispersion and obtains mixture；Then, mixture is added polypropylene, methyl hydroxybenzoate, 12
Carry out sucking filtration after sodium alkyl benzene sulfonate, fully mixing, put into 30 DEG C of oven drying 12h, obtain mixture I；
(2) then, with glycerin ether, mixture I being carried out water-bath, the temperature of water-bath is 60 DEG C, and the time is 30min, is subsequently added to
Double screw extruder, screw speed is set as 452r/min, and through melt extruding, water-cooled pelletizing obtains pellet；Then, 110
Forced air drying 2h at DEG C, uses injection machine injection mo(u)lding, obtains electromagnetic protection Special flexible material.
Comparative example 1
A kind of electromagnetic protection Special flexible material, includes according to the primary raw material of weight portion: epoxy resin 27 parts, polypropylene 22
Part, methyl hydroxybenzoate 11 parts, dodecylbenzene sodium sulfonate 3 parts, SiO 2 powder 0.4 part, glycerin ether 0.3 part, white carbon black
0.2 part, stalk fibre 4 parts.
The preparation method of described electromagnetic protection Special flexible material, concretely comprises the following steps:
(1) first, SiO 2 powder, white carbon black and stalk fibre 80 DEG C are vacuum dried 6h, are subsequently added in modified resin
And stir, it is allowed to dispersion and obtains mixture；Then, mixture is added epoxy resin, polypropylene, hydroxy benzoic acid first
Carry out sucking filtration after ester, dodecylbenzene sodium sulfonate, fully mixing, put into 30 DEG C of oven drying 12h, obtain mixture I；
(2) then, with glycerin ether, mixture I being stirred mixing, be subsequently added to double screw extruder, screw speed sets
For 452r/min, through melt extruding, water-cooled pelletizing obtains pellet；Then, at 110 DEG C, forced air drying 2h, notes with injection machine
Molded, obtain electromagnetic protection Special flexible material.
Comparative example 2
A kind of electromagnetic protection Special flexible material, includes according to the primary raw material of weight portion: epoxy resin 27 parts, polypropylene 22
Part, dodecylbenzene sodium sulfonate 3 parts, SiO 2 powder 0.4 part, glycerin ether 0.3 part, white carbon black 0.2 part, stalk fibre 4 parts.
The preparation method of described electromagnetic protection Special flexible material, concretely comprises the following steps:
(1) first, SiO 2 powder, white carbon black and stalk fibre 80 DEG C are vacuum dried 6h, are subsequently added in modified resin
And stir, it is allowed to dispersion and obtains mixture；Then, mixture is added epoxy resin, polypropylene, DBSA
Carry out sucking filtration after sodium, fully mixing, put into 30 DEG C of oven drying 12h, obtain mixture I；
(2) then, with glycerin ether, mixture I being stirred mixing, be subsequently added to double screw extruder, screw speed sets
For 452r/min, through melt extruding, water-cooled pelletizing obtains pellet；Then, at 110 DEG C, forced air drying 2h, notes with injection machine
Molded, obtain electromagnetic protection Special flexible material.
Comparative example 3
A kind of electromagnetic protection Special flexible material, includes according to the primary raw material of weight portion: modified resin 27 parts, polypropylene 22
Part, methyl hydroxybenzoate 11 parts, dodecylbenzene sodium sulfonate 3 parts, 0.4 part of improved silica powder, glycerin ether 0.3 part,
White carbon black 0.2 part, stalk fibre 4 parts；The preparation method of described modified resin is: by Polyethylene Glycol, polybutylene terephthalate
Ester, Merlon and acrylic resin join reactor, 113 DEG C of constant temperature 1h, are subsequently added citric acid stirring, after cooling
Arrive；The preparation method of described improved silica powder is: ceramic particle, Kaolin are carried out vortex with SiO 2 powder and mixed
Even, it is subsequently added difluoro-benzoic acid, reacts 30min under 27MPa, cool down post-drying and get final product.
The preparation method of described electromagnetic protection Special flexible material, concretely comprises the following steps:
(1) first, improved silica powder, white carbon black and stalk fibre 80 DEG C are vacuum dried 6h, are subsequently added to modified tree
In fat and stir, it is allowed to dispersion and obtains mixture；Then, mixture is added polypropylene, methyl hydroxybenzoate, 12
Carry out sucking filtration after sodium alkyl benzene sulfonate, fully mixing, put into 30 DEG C of oven drying 12h, obtain mixture I；
(2) then, with glycerin ether, mixture I being stirred mixing, be subsequently added to double screw extruder, screw speed sets
For 452r/min, through melt extruding, water-cooled pelletizing obtains pellet；Then, at 110 DEG C, forced air drying 2h, notes with injection machine
Molded, obtain electromagnetic protection Special flexible material.
Test experience
Product prepared by Example 1-3 and comparative example 1-3, hot strength and percentage elongation measure according to GB/T1040-2006.
Material property prepared by above-described embodiment 1-3 and comparative example 1-3 is as shown in table 1.
Material property prepared by table 1 embodiment 1-3 and comparative example 1-3
| Performance | Embodiment 1 | Comparative example 1 | Embodiment 2 | Comparative example 2 | Embodiment 3 | Comparative example 3 |
| Hot strength (MPa) | 2.8 | 1.1 | 4.5 | 0.5 | 4.0 | 2.1 |
| Elongation at break (%) | 528 | 432 | 599 | 270 | 562 | 476 |
Compared with traditional flexible material, the good (elongation at break of electromagnetic protection Special flexible material flexibility that the present invention provides
More than 500%), there is the stretch-proof performance (hot strength is more than 2.5MPa) of excellence simultaneously.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (6)
1. an electromagnetic protection Special flexible material, it is characterised in that include according to the primary raw material of weight portion: modified resin
26-32 part, polypropylene 20-25 part, methyl hydroxybenzoate 8-12 part, dodecylbenzene sodium sulfonate 1-5 part, improved silica
Powder 0.1-0.5 part, glycerin ether 0.1-0.5 part, white carbon black 0.1-0.5 part, stalk fibre 2-6 part.
Electromagnetic protection Special flexible material the most according to claim 1, it is characterised in that according to the primary raw material of weight portion
Including: modified resin 27 parts, polypropylene 22 parts, methyl hydroxybenzoate 11 parts, dodecylbenzene sodium sulfonate 3 parts, modified dioxy
0.4 part of SiClx powder, glycerin ether 0.3 part, white carbon black 0.2 part, stalk fibre 4 parts.
Electromagnetic protection Special flexible material the most according to claim 1 and 2, it is characterised in that the system of described modified resin
Preparation Method is: with acrylic resin, Polyethylene Glycol, polybutylene terephthalate (PBT), Merlon are joined reactor, 113
DEG C constant temperature 1h, is subsequently added citric acid stirring, obtains after cooling.
Electromagnetic protection Special flexible material the most according to claim 3, it is characterised in that described improved silica powder
Preparation method be: ceramic particle, Kaolin and SiO 2 powder are carried out vortex mixing, are subsequently added difluoro-benzoic acid,
React 30min under 27MPa, cool down post-drying and get final product.
5. the preparation method of the electromagnetic protection Special flexible material as described in claim 1-4 is arbitrary, it is characterised in that tool
Body step is:
(1) first, improved silica powder, white carbon black and stalk fibre 80 DEG C are vacuum dried 6h, are subsequently added to modified tree
In fat and stir, it is allowed to dispersion and obtains mixture；Then, mixture is added polypropylene, methyl hydroxybenzoate, 12
Carry out sucking filtration after sodium alkyl benzene sulfonate, fully mixing, put into 30 DEG C of oven drying 12h, obtain mixture I；
(2) then, with glycerin ether, mixture I being carried out water-bath, the temperature of water-bath is 42 DEG C-60 DEG C, and the time is 15min-
30min, is subsequently added to double screw extruder, and screw speed is set as 452r/min, and through melt extruding, water-cooled pelletizing obtains
Pellet；Then, forced air drying 2h at 110 DEG C, uses injection machine injection mo(u)lding, obtains electromagnetic protection Special flexible material.
Electromagnetic protection Special flexible material the most according to claim 5, it is characterised in that the temperature of water-bath in step (2)
Being 53 DEG C, the time is 21min.
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| CN201610681540.XA CN106280383A (en) | 2016-08-18 | 2016-08-18 | A kind of electromagnetic protection Special flexible material |
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Application publication date: 20170104 |
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