CN109181304A - It is electromagnetically shielded polyether sulfone and preparation method thereof - Google Patents
It is electromagnetically shielded polyether sulfone and preparation method thereof Download PDFInfo
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- CN109181304A CN109181304A CN201810999647.8A CN201810999647A CN109181304A CN 109181304 A CN109181304 A CN 109181304A CN 201810999647 A CN201810999647 A CN 201810999647A CN 109181304 A CN109181304 A CN 109181304A
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- polyether sulfone
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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
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
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Abstract
The present invention relates to a kind of electromagnetic shielding polyether sulfones and preparation method thereof, belong to technical field of composite materials.Electromagnetic shielding polyether sulfone of the invention, it is pressed and molded and obtains through hybrid particles, the composition and parts by weight of hybrid particles: 100 parts by weight polyether sulfones, 5-10 parts by weight nitrile rubber, 30-40 parts by weight partial size are 50-500 microns of aluminium balls, 3-5 parts by weight antioxidant, 4-8 parts by weight polytetrafluoroethylene (PTFE), 1-3 parts per weight dispersing agent, 2-5 parts by weight of phosphoric acid front three phenyl ester, 2-6 parts by weight of crosslinking agent, 1-3 parts by weight coupling agent and 2-10 parts by weight of plasticizer.Electromagnetic shielding polyether sulfone of the invention has good electromagnetic shielding performance, and the electromagnet shield effect value after 8GHz to 40GHz, electromagnet shield effect value 62-77dB, 200 DEG C of heat treatment 36h remains to reach 59-73dB.
Description
Technical field
The invention belongs to technical field of composite materials, and in particular to a kind of electromagnetic shielding polyether sulfone and preparation method thereof.
Background technique
Polyether sulfone is to be made by 4,4 '-bis- sulfonephthalein chlorodiphenyl ethers under anhydrous ferric chloride catalysis with diphenyl ether condensation.Polyethers
The fine heat-resisting performance of sulfone, 225 DEG C of glass transition temperature, 203 DEG C of heat distortion temperature (1.82MPa), heat resistance is between polysulfones and gathers
Between fragrant sulfone, 180-200 DEG C of long-term use temperature；Ageing-resistant performance is excellent, at 180 DEG C using up to 20 years；Flame resistance is good, i.e.,
Make also not smoke of burning；Creep resistant is good, and the strain under 150 DEG C and 20MPa pressure only has 2.55%；Chemical resistance is good
Good, the resistance to common organic solvents in addition to chlorohydrocarbon, ketone, acids stablize general acid, alkali, aliphatic hydrocarbon, grease, alcohols etc.；Power
Learn performance, excellent insulation performance and easily processed into type；Therefore in electronics, electric appliance, machinery, automobile, medical apparatus, food processing
And not the fields such as stickness paint oneself through being used widely.
Today's society is in the information age, and the extensive use of electric equipment products forms complicated electromagnetic environment, thus
Caused electromagnetic interference and electromagnetic compatibility problem are got worse, at the same electromagnetic wave to the pollution of human work and living environment oneself at
For a kind of new environmental hazard, the health of the mankind threaten.If polyether sulfone electromagnetic shielding performance can be assigned, can further widen
The application field of polyether sulfone keeps its function more comprehensive.
Summary of the invention
In view of this, the present invention provides a kind of electromagnetic shielding polyether sulfone and preparation method thereof.
Electromagnetic shielding polyether sulfone of the invention is pressed and molded through hybrid particles and obtains, the composition and parts by weight of hybrid particles:
Preferably, the degree of polymerization that the polyethers is soughed is 1200-15000.
Preferably, the antioxidant is Hinered phenols antioxidant or phosphite ester antioxidant.
Preferably, the dispersing agent is silicone or ethylene dilaurate phthalein amine.
Preferably, the crosslinking agent is cumyl peroxide or cumyl peroxide.
Preferably, the coupling agent is vinyl three (2- methoxy ethoxy) silane, vinyltrimethoxysilane
Or vinyltriethoxysilane.
Preferably, the plasticizer is selected from dibutyl sebacate, diisooctyl phthalate, two nonyl of phthalic acid
One of ester, two tricaprylate of triethylene glycol, butyl epoxy stearate, octyl epoxy stearate, triethyl citrate；
The present invention also provides the preparation methods of above-mentioned electromagnetic shielding polyether sulfone, and steps are as follows:
Step 1: by composition and proportion, by nitrile rubber, antioxidant, polytetrafluoroethylene (PTFE), dispersing agent, tricresyl phosphate,
Crosslinking agent and plasticizer, which are added in mixer, to be premixed, and open mill is then added and is uniformly mixed, through extruder extruding pelletization, is changed
Property particle；
Step 2: polyether sulfone, coupling agent, aluminium ball and modified particles are added in extruder, extrusion is made by composition and proportion
Grain, obtains hybrid particles；
Step 3: hybrid particles are filled in the mold of vulcanizing press, it is pressed and molded, obtains electromagnetic shielding polyethers
Sulfone.
Preferably, the temperature of compression molding is 300-350 DEG C, under 5-16MPa pressure, is molded 10-20min.
Preferably, extruder temperature is 270-330 DEG C.
Compared with the prior art, the invention has the benefit that
Electromagnetic shielding polyether sulfone provided by the invention has good electromagnetic shielding performance, in 8GHz to 40GHz, electromagnetic screen
Efficiency value 62-77dB is covered, the electromagnet shield effect value after 200 DEG C of heat treatment 36h remains to reach 59-73dB.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described below with reference to embodiment, still
It should be appreciated that these descriptions are only further explanation the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
Embodiment 1
It is electromagnetically shielded polyether sulfone, is pressed and molded and obtains through hybrid particles, hybrid particles are by 100 parts by weight polyether sulfones, 5 weight
Part nitrile rubber, 30 parts by weight partial sizes are 50 microns of aluminium balls, 3 parts by weight antioxidant 1010s, 4 parts by weight polytetrafluoroethylene (PTFE), 2 weight
Part silicone, 4 parts by weight of phosphoric acid front three phenyl esters, 4 parts by weight cumyl peroxides, 2 parts by weight of ethylene base, three (2- methoxyl group ethoxy
Base) silane and 5 parts by weight diisooctyl phthalates composition.
The preparation method of above-mentioned electromagnetic shielding polyether sulfone, steps are as follows:
Step 1: by composition and proportion, by nitrile rubber, antioxidant, polytetrafluoroethylene (PTFE), dispersing agent, tricresyl phosphate,
Crosslinking agent and plasticizer, which are added in mixer, to be premixed, and open mill is then added and is uniformly mixed, through extruder extruding pelletization, is changed
Property particle；
Step 2: polyether sulfone, coupling agent, aluminium ball and modified particles are added in extruder, extrusion is made by composition and proportion
Grain, obtains hybrid particles；
Step 3: hybrid particles are filled in the mold of vulcanizing press, it is pressed and molded, obtains electromagnetic shielding polyethers
Sulfone.
Embodiment 2
It is electromagnetically shielded polyether sulfone, is pressed and molded and obtains through hybrid particles, hybrid particles are by 100 parts by weight polyether sulfones, 6 weight
Part nitrile rubber, 35 parts by weight partial sizes are 150 microns of aluminium balls, 4 parts by weight antioxidant 1010s, 4 parts by weight polytetrafluoroethylene (PTFE), 3 weights
Measure part silicone, 2 parts by weight of phosphoric acid front three phenyl esters, 2 parts by weight cumyl peroxides, 1 parts by weight of ethylene base, three (2- methoxyl group second
Oxygroup) silane and 2 parts by weight diisooctyl phthalates composition.
The preparation method of above-mentioned electromagnetic shielding polyether sulfone, steps are as follows:
Step 1: by composition and proportion, by nitrile rubber, antioxidant, polytetrafluoroethylene (PTFE), dispersing agent, tricresyl phosphate,
Crosslinking agent and plasticizer, which are added in mixer, to be premixed, and open mill is then added and is uniformly mixed, through extruder extruding pelletization, is changed
Property particle；
Step 2: polyether sulfone, coupling agent, aluminium ball and modified particles are added in extruder, extrusion is made by composition and proportion
Grain, obtains hybrid particles；
Step 3: hybrid particles are filled in the mold of vulcanizing press, it is pressed and molded, obtains electromagnetic shielding polyethers
Sulfone.
Embodiment 3
It is electromagnetically shielded polyether sulfone, is pressed and molded and obtains through hybrid particles, hybrid particles are by 100 parts by weight polyether sulfones, 8 weight
Part nitrile rubber, 38 parts by weight partial sizes are 300 microns of aluminium balls, 3 parts by weight antioxidant 1010s, 6 parts by weight polytetrafluoroethylene (PTFE), 3 weights
Measure part silicone, 3.6 parts by weight of phosphoric acid front three phenyl esters, 5 parts by weight cumyl peroxides, 3 parts by weight of ethylene base, three (2- methoxyl group
Ethyoxyl) silane and 6 parts by weight diisooctyl phthalates composition.
The preparation method of above-mentioned electromagnetic shielding polyether sulfone, steps are as follows:
Step 1: by composition and proportion, by nitrile rubber, antioxidant, polytetrafluoroethylene (PTFE), dispersing agent, tricresyl phosphate,
Crosslinking agent and plasticizer, which are added in mixer, to be premixed, and open mill is then added and is uniformly mixed, through extruder extruding pelletization, is changed
Property particle；
Step 2: polyether sulfone, coupling agent, aluminium ball and modified particles are added in extruder, extrusion is made by composition and proportion
Grain, obtains hybrid particles；
Step 3: hybrid particles are filled in the mold of vulcanizing press, it is pressed and molded, obtains electromagnetic shielding polyethers
Sulfone.
Embodiment 4
It is electromagnetically shielded polyether sulfone, is pressed and molded and obtains through hybrid particles, hybrid particles are by 100 parts by weight polyether sulfones, 10 weights
Measure part nitrile rubber, 40 parts by weight partial sizes are 500 microns of aluminium balls, 5 parts by weight antioxidant 1010s, 8 parts by weight polytetrafluoroethylene (PTFE), 3
Parts by weight silicone, 5 parts by weight of phosphoric acid front three phenyl esters, 6 parts by weight cumyl peroxides, 3 parts by weight of ethylene base, three (2- methoxyl group
Ethyoxyl) silane and 10 parts by weight diisooctyl phthalates composition.
The preparation method of above-mentioned electromagnetic shielding polyether sulfone, steps are as follows:
Step 1: by composition and proportion, by nitrile rubber, antioxidant, polytetrafluoroethylene (PTFE), dispersing agent, tricresyl phosphate,
Crosslinking agent and plasticizer, which are added in mixer, to be premixed, and open mill is then added and is uniformly mixed, through extruder extruding pelletization, is changed
Property particle；
Step 2: polyether sulfone, coupling agent, aluminium ball and modified particles are added in extruder, extrusion is made by composition and proportion
Grain, obtains hybrid particles；
Step 3: hybrid particles are filled in the mold of vulcanizing press, it is pressed and molded, obtains electromagnetic shielding polyethers
Sulfone.
The electromagnetic shielding polyether sulfone of embodiment 1-4 is detected, instrument uses vector network analyzer, and testing result is such as
Shown in table 1.
The performance characterization of the electromagnetic shielding polyether sulfone of 1 embodiment 1-4 of table
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. being electromagnetically shielded polyether sulfone, which is characterized in that it is pressed and molded and obtains through hybrid particles, the composition and weight of hybrid particles
Part:
2. electromagnetic shielding polyether sulfone according to claim 1, which is characterized in that the degree of polymerization that the polyethers is soughed is 1200-
15000。
3. electromagnetic shielding polyether sulfone according to claim 1, which is characterized in that the antioxidant is Hinered phenols antioxidant
Or phosphite ester antioxidant.
4. electromagnetic shielding polyether sulfone according to claim 1, which is characterized in that the dispersing agent is that silicone or ethylene are bimonthly
Cinnamic acid phthalein amine.
5. electromagnetic shielding polyether sulfone according to claim 1, which is characterized in that the crosslinking agent is cumyl peroxide
Or cumyl peroxide.
6. electromagnetic shielding polyether sulfone according to claim 1, which is characterized in that the coupling agent is (the 2- first of vinyl three
Oxygroup ethyoxyl) silane, vinyltrimethoxysilane or vinyltriethoxysilane.
7. electromagnetic shielding polyether sulfone according to claim 1, which is characterized in that the plasticizer is selected from two fourth of decanedioic acid
Ester, diisooctyl phthalate, dinonyl phthalate, two tricaprylate of triethylene glycol, butyl epoxy stearate, epoxy
One of octyl stearate, triethyl citrate.
8. being electromagnetically shielded the preparation method of polyether sulfone described in claim 1-7 any one, which is characterized in that steps are as follows:
Step 1: by composition and proportion, by nitrile rubber, antioxidant, polytetrafluoroethylene (PTFE), dispersing agent, tricresyl phosphate, crosslinking
Agent and plasticizer, which are added in mixer, to be premixed, and open mill is then added and is uniformly mixed, and through extruder extruding pelletization, obtains modified
Grain；
Step 2: polyether sulfone, coupling agent, aluminium ball and modified particles are added in extruder, extruding pelletization by composition and proportion,
Obtain hybrid particles；
Step 3: hybrid particles are filled in the mold of vulcanizing press, it is pressed and molded, obtains electromagnetic shielding polyether sulfone.
9. the preparation method of electromagnetic shielding polyether sulfone according to claim 8, which is characterized in that the temperature of compression molding is
300-350 DEG C, under 5-16MPa pressure, it is molded 10-20min.
10. the preparation method of electromagnetic shielding polyether sulfone according to claim 8, which is characterized in that extruder temperature is
270-330℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810999647.8A CN109181304A (en) | 2018-08-30 | 2018-08-30 | It is electromagnetically shielded polyether sulfone and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810999647.8A CN109181304A (en) | 2018-08-30 | 2018-08-30 | It is electromagnetically shielded polyether sulfone and preparation method thereof |
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| CN109181304A true CN109181304A (en) | 2019-01-11 |
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| CN201810999647.8A Withdrawn CN109181304A (en) | 2018-08-30 | 2018-08-30 | It is electromagnetically shielded polyether sulfone and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106280461A (en) * | 2016-09-13 | 2017-01-04 | 北京市射线应用研究中心 | A kind of high temperature resistant neutron and gamma ray shielding composite and preparation method thereof |
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2018
- 2018-08-30 CN CN201810999647.8A patent/CN109181304A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106280461A (en) * | 2016-09-13 | 2017-01-04 | 北京市射线应用研究中心 | A kind of high temperature resistant neutron and gamma ray shielding composite and preparation method thereof |
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