CN114957913A - Wave-transparent material - Google Patents
Wave-transparent material Download PDFInfo
- Publication number
- CN114957913A CN114957913A CN202210553435.3A CN202210553435A CN114957913A CN 114957913 A CN114957913 A CN 114957913A CN 202210553435 A CN202210553435 A CN 202210553435A CN 114957913 A CN114957913 A CN 114957913A
- Authority
- CN
- China
- Prior art keywords
- wave
- containing resin
- ether
- transparent material
- fluorine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012780 transparent material Substances 0.000 title claims description 15
- 229920005989 resin Polymers 0.000 claims abstract description 48
- 239000011347 resin Substances 0.000 claims abstract description 48
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 28
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011737 fluorine Substances 0.000 claims abstract description 18
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 18
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 8
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000001033 ether group Chemical group 0.000 claims abstract description 5
- 239000004734 Polyphenylene sulfide Substances 0.000 claims abstract description 4
- 150000002576 ketones Chemical class 0.000 claims abstract description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims abstract description 4
- 229920003235 aromatic polyamide Polymers 0.000 claims description 10
- 239000004760 aramid Chemical group 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001774 Perfluoroether Polymers 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical group FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 claims description 3
- 125000000732 arylene group Chemical group 0.000 claims description 3
- 229920006026 co-polymeric resin Polymers 0.000 claims description 3
- 229920001519 homopolymer Polymers 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 3
- 125000001174 sulfone group Chemical group 0.000 claims 1
- 229920006260 polyaryletherketone Polymers 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 150000003457 sulfones Chemical group 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 5
- 229920002530 polyetherether ketone Polymers 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920001652 poly(etherketoneketone) Polymers 0.000 description 2
- 229920003366 poly(p-phenylene terephthalamide) Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- MHSKRLJMQQNJNC-UHFFFAOYSA-N terephthalamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C=C1 MHSKRLJMQQNJNC-UHFFFAOYSA-N 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- 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
- C08L61/16—Condensation polymers of aldehydes or ketones with phenols only of ketones with phenols
-
- 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
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
-
- 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
- C08L81/02—Polythioethers; Polythioether-ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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 wave-transmitting material, which comprises ether-containing resin, fluorine-containing resin and aramid fiber, wherein the ether-containing resin can be selected from polyphenylene sulfide or comprises phenyl parts, ketone and/or sulfone parts and ether parts, the fluorine-containing resin contains a tetrafluoroethylene repeating unit, and the dielectric constant of the wave-transmitting material is less than 3. The invention has the beneficial effects that: the wave-transmitting material is prepared from the compound composition containing the ether resin, such as polyaryletherketone and the fluorine-containing resin, has the characteristics of high mechanical property and impact resistance, can transmit electromagnetic waves, hardly changes the properties of the electromagnetic waves, and has low dielectric constant and high temperature resistance.
Description
Technical Field
The invention relates to the technical field of engineering plastics, in particular to a wave-transmitting material.
Background
In the fields of 5G communication, war industry and aerospace and aviation, at present, a PTFE pure material is mainly used as a wave-transmitting material, when the PTFE pure material is used for the wave-transmitting material, the hardness is too soft, the material is not a thermoplastic material, and when the use temperature reaches the long-term use temperature of the material, the PTFE is directly gasified, so that an antenna or a microwave emitter is exposed in the air and directly participates in friction with the air, and the damage of a component is caused.
The wave-transmitting material not only requires that the material has high mechanical properties, impact resistance, environmental resistance and the like, but also requires that the material can transmit electromagnetic waves and hardly changes the properties of the electromagnetic waves, and requires that the material has low dielectric constant, high-temperature resistance and the like.
In the prior art, although the compound composition of ether-containing resin such as polyaryl ether ketone and fluorine-containing resin is utilized, but none can meet the performance requirements of wave-transparent materials, for example, patent CN201410746978.2 relates to a chopped carbon fiber/fluorine-containing resin/polyaryletherketone composite material for a gas compressor valve plate, which mainly utilizes chopped carbon fibers to increase the rigidity of the PEEK material, utilizes the dimensional stability and wear resistance of polytetrafluoroethylene to modify the PEEK, patent CN201110347338.0 discloses a composite material compounded by polyaryletherketone, carbon-graphite fibers, fluorine-containing resin and a coupling agent, which has excellent physical, mechanical, thermal, chemical and other properties, has better vibration damping effect than aluminum and steel, and simultaneously has low friction coefficient and excellent lubricating property, therefore, the research and development of a wave-transparent material with good performance and low cost applied to high-end fields is a technical problem which needs to be solved urgently.
Disclosure of Invention
The present invention is directed to a wave-transparent material to solve the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a wave-transmitting material comprising an ether-containing resin, which may be selected from polyphenylene sulfide or comprise phenyl moieties, ketone and/or sulfone moieties and ether moieties, a fluorine-containing resin comprising repeating units of tetrafluoroethylene, and aramid fibers, said wave-transmitting material having a dielectric constant < 3.
Preferably, the ether-containing resin is a homopolymer having a repeating unit of the following general formula (1) and/or (2):
preferably, E' represents an oxygen atom or a direct link, B and D are 0 or 1, m, w, r, s, z, t, v each independently represent 0 or 1, and the Ar group is selected from one or more of aryl, arylene and derivatives thereof.
Preferably, the ether containing resin has a molecular weight Mw of at least 2 ten thousand.
Preferably, the ether containing resin has a melt index of at least 5g/10 min.
Preferably, the fluorine-containing resin is perfluoroalkoxy tetrafluoroethylene resin, polytetrafluoroethylene resin or tetrafluoroethylene-hexafluoropropylene copolymer resin.
Preferably, the mesh number of the fluorine-containing resin is 120 or more.
Preferably, the aramid fiber is para-aramid fiber.
Preferably, the para-aramid fibers have a median length of 10 to 500 microns and a median diameter of 3 to 20 microns in the final shaped material.
Preferably, the para-aramid fibers have a median length of 50 to 300 microns and a median diameter of 5 to 14 microns in the final shaped material.
Advantageous effects
The wave-transmitting material provided by the invention is prepared from the compound composition containing the ether resin, such as polyaryletherketone and the fluorine-containing resin, has high mechanical property, impact resistance and environmental resistance, can transmit electromagnetic waves, hardly changes the property of the electromagnetic waves, and has low dielectric constant and high temperature resistance.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Examples
A wave-transmitting material comprises the following components of ether-containing resin, fluorine-containing resin and aramid fiber, wherein the ether-containing resin can be selected from polyphenylene sulfide or polymer materials comprising the following components: phenyl moieties, ketone and/or sulfone moieties, and ether moieties; the fluorine-containing resin contains a repeating unit of tetrafluoroethylene, wherein the dielectric constant of the prepared wave-transmitting material at the frequency of 1GHz is less than 3;
further, the ether-containing resin is a homopolymer having a repeating unit of the following general formula (1) and/or (2):
wherein E' represents an oxygen atom or a direct link, B and D are 0 or 1, m, w, r, s, z, t, v independently represent 0 or 1; the Ar group is selected from one or more of aryl, arylene and derivatives thereof.
Further, the ether containing resin preferably comprises repeating units of the formula:
wherein t is 1 And w 1 Independently represent 0 or 1, v 1 Represents 0, 1 or 2, preferred polymeric materials having such repeating units, wherein t 1 ＝1，v 1 0 and w 1 ＝0；t 1 ＝0，v 1 0 and w 1 ＝0；t 1 ＝0，w 1 ＝1，v 1 2; or t 1 ＝0，v 1 1 and w 1 0. More preferably t 1 ＝1，v 1 0 and w 1 0; or t 1 ＝0，v 1 0 and w 1 0, most preferably t 1 ＝1，v 1 0 and w 1 ＝0。
In a preferred embodiment, the ether containing resin is selected from the group consisting of polyetheretherketone, polyetherketone, polyetherketoneetherketoneketone, polyetheretherketoneketone, and polyetherketoneketone, in a more preferred embodiment, the polymeric material is selected from the group consisting of polyetherketone and polyetheretherketone; in a particularly preferred embodiment, the polymeric material is polyetheretherketone.
Molecular weight M of the ether-containing resin W At least 2 ten thousand or more, preferably 20 ten thousand or more, more preferably 30 ten thousand or more, and preferably in the range of 55 to 90 ten thousand.
The melt index of the ether containing resin is at least 5g/10min, preferably 7-25g/10 min.
The ether containing resin is used in an amount of 55 to 90 wt%, preferably at least 60 wt%, more preferably at least 70 wt%, most preferably at least 80 wt%.
Further, the ether-containing resin has a tensile strength of at least 50MPa, preferably at least 60MPa, more preferably at least 75MPa, and a tensile strength of preferably 85 to 120MPa, more preferably 85 to 95 MPa.
The ether-containing resin has a flexural strength of at least 120MPa, preferably 135 to 170MPa, more preferably 140 to 160 MPa.
Examples of the fluorine-containing resin include perfluoroalkoxy tetrafluoroethylene resin, polytetrafluoroethylene resin, and tetrafluoroethylene-hexafluoropropylene copolymer resin.
The perfluoroalkoxy polymer may be represented by the following general formula:
The tetrafluoroethylene/hexafluoropropylene copolymer can be represented by the following general formula:
In a preferred embodiment, the amount of the fluorine-containing resin is 5 to 30% by weight, preferably at least 10% by weight, and more preferably at least 15% by weight.
The aramid fibers of the present invention use fibers made from para-aramid, i.e., poly (p-phenylene terephthalamide), which has at least 85% of the amide (-CONH-) linkages attached directly to two aromatic rings, and "para-aramid" refers to copolymers having at most 10% of other diamines (substituted for the aramid diamines) or at most 10% of other diacid chlorides (substituted for the aramid diacid chlorides) oriented para-to each other along the molecular chain, for the process of making poly (p-phenylene terephthalamide) fibers of the present invention, as disclosed in U.S. patent nos. 3,869,430, 3,869,429, and 3,767,756.
The poly (paraphenylene terephthalamide) fibers have a median length in the final shaped composition of 10 to 500 microns, preferably 50 to 300 microns, more preferably 100 to 200 microns, and a median diameter of 3 to 20 microns, preferably 5 to 14 microns.
In a preferred embodiment, the aramid fiber is used in an amount of 5 to 35 wt%, preferably at least 10 wt%, and further preferably not more than 30 wt%.
Examples and performance tests table 1:
examples and performance tests table 2:
finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the scope of the protection of the present invention.
Claims (10)
1. A wave-transparent material, characterized by: comprising an ether-containing resin selected from polyphenylene sulfide or comprising phenyl moieties, ketone and/or sulfone moieties and ether moieties, a fluorine-containing resin comprising repeating units of tetrafluoroethylene, and aramid fibers, said wave-transmitting material having a dielectric constant < 3.
2. The wave-transparent material of claim 1, wherein: the ether-containing resin is a homopolymer having a repeating unit of the following general formula (1) and/or (2):
3. the wave-transparent material of claim 2, wherein: e' represents an oxygen atom or a direct link, B and D are 0 or 1, m, w, r, s, z, t, v each independently represent 0 or 1, and Ar group is selected from one or more of aryl, arylene and derivatives thereof.
4. The wave-transparent material of claim 1, wherein: the ether containing resin has a molecular weight Mw of at least 2 ten thousand.
5. The wave-transparent material of claim 1, wherein: the ether containing resin has a melt index of at least 5g/10 min.
6. The wave-transparent material of claim 1, wherein: the fluorine-containing resin is perfluoroalkoxy tetrafluoroethylene resin, polytetrafluoroethylene resin or tetrafluoroethylene-hexafluoropropylene copolymer resin.
7. The wave-transparent material of claim 1, wherein: the fluorine-containing resin has a mesh number of 120 or more.
8. The wave-transparent material of claim 1, wherein: the aramid fiber is para-aramid fiber.
9. The wave-transparent material of claim 8, wherein: the para-aramid fibers have a median length of 10 to 500 microns and a median diameter of 3 to 20 microns in the final shaped material.
10. The wave-transparent material of claim 9, wherein: the para-aramid fibers have a median length of 50 to 300 microns and a median diameter of 5 to 14 microns in the final shaped material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210553435.3A CN114957913A (en) | 2022-05-20 | 2022-05-20 | Wave-transparent material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210553435.3A CN114957913A (en) | 2022-05-20 | 2022-05-20 | Wave-transparent material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114957913A true CN114957913A (en) | 2022-08-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210553435.3A Pending CN114957913A (en) | 2022-05-20 | 2022-05-20 | Wave-transparent material |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558863A (en) * | 2012-01-04 | 2012-07-11 | 四川华通特种工程塑料研究中心有限公司 | Low-dielectric-property polyphenylene sulphide composite material and preparation method thereof |
| CN103709751A (en) * | 2013-12-26 | 2014-04-09 | 余姚中国塑料城塑料研究院有限公司 | Wave-penetrating polyphenylene sulfide composite material |
| CN106957528A (en) * | 2017-02-04 | 2017-07-18 | 王飞 | A kind of thermoplastic resin-based fibrous composite of low dielectric and application thereof |
| CN108250750A (en) * | 2016-12-29 | 2018-07-06 | 上海杰事杰新材料(集团)股份有限公司 | Wave transparent self lubricity polyphenyl thioether material and preparation method thereof |
| CN112280301A (en) * | 2020-10-27 | 2021-01-29 | 南京清研高分子新材料有限公司 | Low-dielectric-constant polyphenylene sulfide composite material and preparation process thereof |
| CN112592589A (en) * | 2020-12-15 | 2021-04-02 | 中广核高新核材科技（苏州）有限公司 | Modified engineering plastic for manufacturing 5G communication filter and preparation method thereof |
| CN112920588A (en) * | 2021-01-14 | 2021-06-08 | 深圳力越新材料有限公司 | PC/PAEK alloy with low dielectric constant and low dielectric loss for satellite antenna and preparation method thereof |
-
2022
- 2022-05-20 CN CN202210553435.3A patent/CN114957913A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| CN102558863A (en) * | 2012-01-04 | 2012-07-11 | 四川华通特种工程塑料研究中心有限公司 | Low-dielectric-property polyphenylene sulphide composite material and preparation method thereof |
| CN103709751A (en) * | 2013-12-26 | 2014-04-09 | 余姚中国塑料城塑料研究院有限公司 | Wave-penetrating polyphenylene sulfide composite material |
| CN108250750A (en) * | 2016-12-29 | 2018-07-06 | 上海杰事杰新材料(集团)股份有限公司 | Wave transparent self lubricity polyphenyl thioether material and preparation method thereof |
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| CN112592589A (en) * | 2020-12-15 | 2021-04-02 | 中广核高新核材科技（苏州）有限公司 | Modified engineering plastic for manufacturing 5G communication filter and preparation method thereof |
| CN112920588A (en) * | 2021-01-14 | 2021-06-08 | 深圳力越新材料有限公司 | PC/PAEK alloy with low dielectric constant and low dielectric loss for satellite antenna and preparation method thereof |
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