CN113736124A - Waterproof, breathable, conductive and insulating composite material and preparation method thereof - Google Patents
Waterproof, breathable, conductive and insulating composite material and preparation method thereof Download PDFInfo
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- CN113736124A CN113736124A CN202010473918.3A CN202010473918A CN113736124A CN 113736124 A CN113736124 A CN 113736124A CN 202010473918 A CN202010473918 A CN 202010473918A CN 113736124 A CN113736124 A CN 113736124A
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- waterproof
- composite material
- coating
- breathable
- silver paste
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- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 35
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 35
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims description 58
- 238000000576 coating method Methods 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 12
- 229910052709 silver Inorganic materials 0.000 claims description 12
- 239000004332 silver Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/06—Coating with compositions not containing macromolecular substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
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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)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a waterproof, breathable, conductive and insulating composite material, which comprises a PTFE waterproof breathable film and a conductive material, wherein the conductive material is nano silver paste, and the nano silver paste is coated on the surface of the PTFE waterproof breathable film and dried to prepare the composite material.
Description
Technical Field
The invention relates to the field of electronic equipment, in particular to a waterproof, breathable, conductive and insulating composite material and a preparation method thereof.
Background
In the field of sealed electronic devices (instruments), electronic circuits or housings for devices, and sensors. In order to ensure that the sealed equipment meets the protection level, the waterproof requirement needs to be met, meanwhile, the electronic circuit can generate heat in the running process, and the ventilation characteristic needs to be ensured; the PCB for etching the electronic circuit also needs insulation treatment; the etched circuit is also intended to be conductive, with a corresponding conductive function.
However, materials which integrate the functions are lacked in the market at present, and only the materials which are purely waterproof and breathable or purely conductive are available in the market at present. Therefore, it is desirable to provide a waterproof, breathable, conductive and insulating composite material and a method for preparing the same, which aim to solve the above problems.
Disclosure of Invention
In view of the defects in the prior art, an object of the embodiments of the present invention is to provide a waterproof, air-permeable, conductive and insulating composite material and a preparation method thereof, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a waterproof, ventilative, electrically conductive and insulating combined material, includes the waterproof ventilated membrane of PTFE and conducting material, conducting material is nanometer silver thick liquid, and the combined material is made in the waterproof ventilated membrane surface of PTFE and stoving of nanometer silver thick liquid coating.
As a further scheme of the invention, both surfaces of the PTFE waterproof and breathable film are coated with nano silver paste, and the coating thickness of the nano silver paste is 200 nm-500 nm.
According to a further scheme of the invention, the nano silver paste is clarified after being stirred by a high-speed stirrer, and the stirring speed of the high-speed stirrer is 1000-2000 r/min.
According to a further scheme of the invention, the nano silver paste is coated by coating equipment, and the coating thickness of the coating equipment is adjusted within the range of 200-500 nm.
As a further scheme of the invention, an oven is adopted for drying, the temperature of the oven is 80 ℃, and the time is 5 min.
A method for preparing a waterproof, breathable, conductive and insulating composite material, comprising the steps of:
1) pouring the nano silver paste into a high-speed stirrer for stirring, wherein the stirring speed of the high-speed stirrer is 1000-2000 r/min, and the stirred nano silver paste is in a clear state;
2) fixing the PTFE waterproof breathable film on unwinding equipment of coating equipment;
3) adjusting the coating thickness of the coating equipment to 200 nm-500 nm;
4) pouring the stirred nano silver paste in the step 1) into a feeding device of coating equipment;
5) starting the coating equipment, operating at the speed of 3-4 m/min, and coating the nano silver paste on the surface of the PTFE waterproof breathable film;
6) feeding the material coated in the step 5) into an oven, wherein the oven temperature is as follows: 80 ℃; time: 5 min; drying to obtain a composite material;
7) and (3) rolling the composite material dried in the step 6) by adopting rolling equipment.
As a further embodiment of the present invention, in step 1), the stirring speed of the high-speed stirrer is 1000 r/min.
As a further variant of the invention, in step 3), the coating thickness of the coating apparatus is adjusted to 200 nm.
In summary, compared with the prior art, the embodiment of the invention has the following beneficial effects:
the waterproof, breathable, conductive and insulating composite material meets the characteristics of waterproofness, breathability, conductivity and insulation, is not only purely waterproof and breathable or purely conductive, integrates the functions of waterproofness, breathability, conductivity and insulation, is suitable for being used on a sealed electronic device, an electronic circuit or a shell of the device, is also suitable for being used on a sensor, is convenient and fast in manufacturing method, composites multiple materials into one material, saves the production cost and improves the use performance.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a flow chart of a method of making a waterproof, breathable, electrically conductive, and insulating composite of the present invention.
Fig. 2 is a schematic structural view of a waterproof, breathable, conductive and insulating composite material according to the present invention.
Reference numerals: the production process comprises the following steps of 1-a PTFE waterproof and breathable film, 2-a conductive material, 3-unreeling equipment, 4-coating equipment, 5-an oven and 6-reeling equipment.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1
A waterproof, breathable, conductive and insulating composite material comprises a PTFE waterproof breathable film 1 and a conductive material 2, wherein the conductive material 2 is nano silver paste, the nano silver paste with the thickness of 200nm is coated on two surfaces of the PTFE waterproof breathable film 1, and the PTFE waterproof breathable film is dried to be made into the composite material.
A method for preparing a waterproof, breathable, electrically conductive and insulating composite material, as shown in fig. 1, comprising the steps of:
1) pouring the nano silver paste into a high-speed stirrer for stirring, wherein the stirring speed of the high-speed stirrer is 1000r/min, and the stirred nano silver paste is in a clear state;
2) fixing the PTFE waterproof and breathable film 1 on the unreeling device 3 of the coating device 4;
3) the coating thickness of the coating device 4 was adjusted to 200 nm;
4) pouring the stirred nano silver paste in the step 1) into a feeding device of a coating device 4;
5) starting the coating equipment 4, operating at the speed of 3m/min, and coating the nano silver paste on the surface of the PTFE waterproof breathable film 1;
6) feeding the coated material obtained in the step 5) into an oven 5, wherein the temperature of the oven 5 is as follows: 80 ℃; time: 5 min; drying to obtain a composite material;
7) and (3) rolling the composite material dried in the step 6) by using rolling equipment 6.
Example 2
The utility model provides a waterproof, ventilative, electrically conductive and insulating combined material, includes the waterproof ventilated membrane 1 of PTFE and conducting material 2, conducting material 2 is nanometer silver thick liquid, and the both sides of the waterproof ventilated membrane 1 of PTFE all coat and have the nanometer silver thick liquid of 300nm thickness to the combined material is made in the stoving.
A method for preparing a waterproof, breathable, conductive and insulating composite material, comprising the steps of:
1) pouring the nano silver paste into a high-speed stirrer for stirring, wherein the stirring speed of the high-speed stirrer is 1200r/min, and the stirred nano silver paste is in a clear state;
2) fixing the PTFE waterproof and breathable film 1 on the unreeling device 3 of the coating device 4;
3) the coating thickness of the coating apparatus 4 was adjusted to 300 nm;
4) pouring the stirred nano silver paste in the step 1) into a feeding device of a coating device 4;
5) starting the coating equipment 4, operating at the speed of 3m/min, and coating the nano silver paste on the surface of the PTFE waterproof breathable film 1;
6) feeding the coated material obtained in the step 5) into an oven 5, wherein the temperature of the oven 5 is as follows: 80 ℃; time: 5 min; drying to obtain a composite material;
7) and (3) rolling the composite material dried in the step 6) by using rolling equipment 6.
Example 3
The utility model provides a waterproof, ventilative, electrically conductive and insulating combined material, includes the waterproof ventilated membrane 1 of PTFE and conducting material 2, conducting material 2 is nanometer silver thick liquid, and the both sides of the waterproof ventilated membrane 1 of PTFE all coat and have the nanometer silver thick liquid of 300nm thickness to the combined material is made in the stoving.
A method for preparing a waterproof, breathable, conductive and insulating composite material, comprising the steps of:
1) pouring the nano silver paste into a high-speed stirrer for stirring, wherein the stirring speed of the high-speed stirrer is 1500r/min, and the stirred nano silver paste is in a clear state;
2) fixing the PTFE waterproof and breathable film 1 on the unreeling device 3 of the coating device 4;
3) the coating thickness of the coating apparatus 4 was adjusted to 300 nm;
4) pouring the stirred nano silver paste in the step 1) into a feeding device of a coating device 4;
5) starting the coating equipment 4, operating at the speed of 4m/min, and coating the nano silver paste on the surface of the PTFE waterproof breathable film 1;
6) feeding the coated material obtained in the step 5) into an oven 5, wherein the temperature of the oven 5 is as follows: 80 ℃; time: 5 min; drying to obtain a composite material;
7) and (3) rolling the composite material dried in the step 6) by using rolling equipment 6.
Example 4
The utility model provides a waterproof, ventilative, electrically conductive and insulating combined material, includes waterproof ventilated membrane 1 of PTFE and conducting material 2, conducting material 2 is nanometer silver thick liquid, and the both sides of waterproof ventilated membrane 1 of PTFE all coat with the nanometer silver thick liquid of 400nm thickness to the combined material is made in the stoving.
A method for preparing a waterproof, breathable, conductive and insulating composite material, comprising the steps of:
1) pouring the nano silver paste into a high-speed stirrer for stirring, wherein the stirring speed of the high-speed stirrer is 1700r/min, and the stirred nano silver paste is in a clear state;
2) fixing the PTFE waterproof and breathable film 1 on the unreeling device 3 of the coating device 4;
3) the coating thickness of the coating apparatus 4 was adjusted to 400 nm;
4) pouring the stirred nano silver paste in the step 1) into a feeding device of a coating device 4;
5) starting the coating equipment 4, operating at the speed of 4m/min, and coating the nano silver paste on the surface of the PTFE waterproof breathable film 1;
6) feeding the coated material obtained in the step 5) into an oven 5, wherein the temperature of the oven 5 is as follows: 80 ℃; time: 5 min; drying to obtain a composite material;
7) and (3) rolling the composite material dried in the step 6) by using rolling equipment 6.
Example 5
The utility model provides a waterproof, ventilative, electrically conductive and insulating combined material, includes the waterproof ventilated membrane 1 of PTFE and conducting material 2, conducting material 2 is nanometer silver thick liquid, and the both sides of the waterproof ventilated membrane 1 of PTFE all coat with the nanometer silver thick liquid of 500nm thickness to the combined material is made in the stoving.
A method for preparing a waterproof, breathable, conductive and insulating composite material, comprising the steps of:
1) pouring the nano silver paste into a high-speed stirrer for stirring, wherein the stirring speed of the high-speed stirrer is 2000r/min, and the stirred nano silver paste is in a clear state;
2) fixing the PTFE waterproof and breathable film 1 on the unreeling device 3 of the coating device 4;
3) the coating thickness of the coating apparatus 4 was adjusted to 500 nm;
4) pouring the stirred nano silver paste in the step 1) into a feeding device of a coating device 4;
5) starting the coating equipment 4, operating at the speed of 3m/min, and coating the nano silver paste on the surface of the PTFE waterproof breathable film 1;
6) feeding the coated material obtained in the step 5) into an oven 5, wherein the temperature of the oven 5 is as follows: 80 ℃; time: 5 min; drying to obtain a composite material;
7) and (3) rolling the composite material dried in the step 6) by using rolling equipment 6.
And (3) testing:
coating the nano silver paste of the embodiments 1 to 5 on the surface of the PTFE waterproof breathable film and drying to prepare a composite material, and testing by adopting a conductivity tester, a waterproof tester, a breathable tester and an insulation tester; the test structure is as follows:
in summary, the composite materials prepared in embodiments 1 to 5 of the present invention satisfy the characteristics of water resistance, air permeability, electrical conductivity, and insulation, and are no longer only waterproof, air permeability, or electrical conductivity, and the composite materials integrate the functions of water resistance, air permeability, electrical conductivity, and insulation, and are suitable for use in sealed electronic devices, electronic circuits, or housings of devices, and also suitable for use in sensors.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty, and such will fall within the scope of the invention.
Claims (8)
1. The utility model provides a waterproof, ventilative, electrically conductive and insulating combined material, its characterized in that, includes waterproof ventilated membrane of PTFE (1) and conducting material (2), conducting material (2) are nanometer silver thick liquid, and the combined material is made in the waterproof ventilated membrane of PTFE (1) surface of nanometer silver thick liquid coating and stoving.
2. The waterproof, breathable, conductive and insulating composite material according to claim 1, characterized in that both sides of the PTFE waterproof and breathable film (1) are coated with nano silver paste, the coating thickness of which is 200nm to 500 nm.
3. The waterproof, breathable, conductive and insulating composite material according to claim 2, wherein the nano silver paste is clarified after being stirred by a high-speed stirrer, and the stirring speed of the high-speed stirrer is 1000-2000 r/min.
4. The waterproof, breathable, conductive and insulating composite material according to claim 3, characterized in that the nano silver paste is coated by a coating device (4), and the coating thickness of the coating device (4) is adjusted within a range of 200-500 nm.
5. The waterproof, breathable, electrically conductive and insulating composite material according to claim 4, characterized in that drying employs an oven (5), the temperature of the oven (5) being 80 ℃ for 5 min.
6. A method of preparing the waterproof, breathable, electrically conductive and insulating composite material according to claim 5, characterized in that it comprises the following steps:
1) pouring the nano silver paste into a high-speed stirrer for stirring, wherein the stirring speed of the high-speed stirrer is 1000-2000 r/min, and the stirred nano silver paste is in a clear state;
2) fixing the PTFE waterproof breathable film (1) on the unreeling device (3) of the coating device (4);
3) adjusting the coating thickness of the coating equipment (4) to 200 nm-500 nm;
4) pouring the stirred nano silver paste in the step 1) into a feeding device of the coating equipment (4);
5) starting the coating equipment (4), operating at the speed of 3-4 m/min, and coating the nano silver paste on the surface of the PTFE waterproof breathable film (1);
6) feeding the coated material obtained in the step 5) into an oven (5), wherein the temperature of the oven (5) is as follows: 80 ℃; time: 5 min; drying to obtain a composite material;
7) and (3) rolling the composite material dried in the step 6) by adopting rolling equipment (6).
7. The method for preparing a waterproof, air-permeable, electrically conductive and insulating composite material according to claim 6, wherein in the step 1), the stirring speed of the high-speed stirrer is 1000 r/min.
8. The method for the preparation of a waterproof, breathable, conductive and insulating composite material according to claim 6, characterized in that in step 3) the coating thickness of the coating device (4) is adjusted to 200 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010473918.3A CN113736124A (en) | 2020-05-29 | 2020-05-29 | Waterproof, breathable, conductive and insulating composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010473918.3A CN113736124A (en) | 2020-05-29 | 2020-05-29 | Waterproof, breathable, conductive and insulating composite material and preparation method thereof |
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| CN113736124A true CN113736124A (en) | 2021-12-03 |
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| CN104213431A (en) * | 2014-09-26 | 2014-12-17 | 福建隆上超纤有限公司 | Manufacturing method of waterproof artificial leather |
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| CN107446156A (en) * | 2017-08-22 | 2017-12-08 | 江苏泛亚微透科技股份有限公司 | Composite, its preparation method and its preparation facilities of graphite ene coatings are coated with eptfe membrane face |
| CN107603188A (en) * | 2017-08-29 | 2018-01-19 | 广东工业大学 | A kind of enhanced self-healing flexible conduction high molecular composite material based on shape memory and its preparation method and application |
| WO2019022528A1 (en) * | 2017-07-28 | 2019-01-31 | 엘에프피 주식회사 | Polytetrafluoroethylene carbon nanotube composite having electro-conductive property and method for producing same |
| CN110517808A (en) * | 2019-08-05 | 2019-11-29 | 中国民用航空飞行学院 | A kind of composite conductive thin film and preparation method thereof based on silver nanowires |
| CN113667172A (en) * | 2020-05-13 | 2021-11-19 | 惠州市清鉴环保工程有限公司 | Waterproof, breathable, conductive and insulating composite material and preparation method thereof |
-
2020
- 2020-05-29 CN CN202010473918.3A patent/CN113736124A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213431A (en) * | 2014-09-26 | 2014-12-17 | 福建隆上超纤有限公司 | Manufacturing method of waterproof artificial leather |
| CN104464880A (en) * | 2014-11-17 | 2015-03-25 | 苏州斯迪克新材料科技股份有限公司 | Heat-resistant flexible transparent conductive film and preparation method thereof |
| WO2019022528A1 (en) * | 2017-07-28 | 2019-01-31 | 엘에프피 주식회사 | Polytetrafluoroethylene carbon nanotube composite having electro-conductive property and method for producing same |
| CN107446156A (en) * | 2017-08-22 | 2017-12-08 | 江苏泛亚微透科技股份有限公司 | Composite, its preparation method and its preparation facilities of graphite ene coatings are coated with eptfe membrane face |
| CN107603188A (en) * | 2017-08-29 | 2018-01-19 | 广东工业大学 | A kind of enhanced self-healing flexible conduction high molecular composite material based on shape memory and its preparation method and application |
| CN110517808A (en) * | 2019-08-05 | 2019-11-29 | 中国民用航空飞行学院 | A kind of composite conductive thin film and preparation method thereof based on silver nanowires |
| CN113667172A (en) * | 2020-05-13 | 2021-11-19 | 惠州市清鉴环保工程有限公司 | Waterproof, breathable, conductive and insulating composite material and preparation method thereof |
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