CN110006560A - A kind of preparation method of pliable pressure sensor and pressure sensitive - Google Patents
A kind of preparation method of pliable pressure sensor and pressure sensitive Download PDFInfo
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- CN110006560A CN110006560A CN201910302948.5A CN201910302948A CN110006560A CN 110006560 A CN110006560 A CN 110006560A CN 201910302948 A CN201910302948 A CN 201910302948A CN 110006560 A CN110006560 A CN 110006560A
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- pressure
- pressure sensitive
- flexible substrate
- sensitive
- silver electrode
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- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 47
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052709 silver Inorganic materials 0.000 claims abstract description 36
- 239000004332 silver Substances 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 18
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 10
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims abstract description 10
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 10
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 8
- 229920005573 silicon-containing polymer Polymers 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 13
- 238000013019 agitation Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 8
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 239000002071 nanotube Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2287—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges constructional details of the strain gauges
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses the preparation methods of a kind of pliable pressure sensor and pressure sensitive, including Kapton, silver electrode, pressure sensitive and silicone filler layer；The present invention, which uses for silver electrode to be grown on Kapton, constitutes flexible substrate, pressure sensitive is mixed and made into using carbon nanotube and dimethyl silicone polymer, front and back in pressure sensitive is bonded with the circular head of silver electrode in two panels flexible substrate respectively, and silicone filler layer is filled in two panels flexible substrate between the tail portion of long lead, and is wrapped in the circular piece periphery of pressure sensitive.Pressure sensitive and flexible substrate cooperation have better flexibility and a bending resistance, and the present invention has that electric property is good, linear characteristic is good, intensity is high, temperature resistant range is big, make simple, at low cost and the advantages of be convenient for industrialized production.
Description
Technical field
The present invention relates to sensor technical field, the preparation side of especially a kind of pliable pressure sensor and pressure sensitive
Method.
Background technique
With the development of science and technology, pressure sensor is widely used in the fields such as national defence, medical treatment, industry, life.Particularly with
Current high-tech special dimension, flexible sensor have become a big hot topic research direction.The present invention is based on flexible substrates and material
Material, the pliable pressure sensor being made into have preferable bending and stretch-resistance.With Patent No. 201611144675.9
Pliable pressure sensor is compared, and present invention production is simple, and chemical reagent used is few, and range is bigger, and sensitivity is higher；With the patent No.
Compared for 201610606324.9 pliable pressure sensor, low manufacture cost of the present invention, using silk-screen printing PDMS layer more
Thin, up to 0.1mm, and range is larger, and electric property and the linearity are more preferable.The prior art mostly uses polytetrafluoroethylene material surface
The electrode for smearing silver paste, uses ZnO etc. as pressure sensitive, the problem is that, firstly, silver paste is due to being to be applied to substrate
On, adhesiveness is bad；Secondly, silver paste is a kind of biggish material of rigidity, the silver paste after solidification easily occurs in the process of bending
Fracture.It uses ZnO to be easily damaged as pressure sensitive the disadvantage is that energy capacity is low small, slight pressure is difficult to detect.And it is straight
It connects using ZnO as pressure drag material, without any coupler and reinforcing agent, material structure is easily broken off, without good repeatability
And bending strength.For pliable pressure sensor, these are the disadvantage is that fatal.In addition, application No. is
201611061023.9 patent discloses a kind of preparation of pressure sensitive material based on carbonization sponge, which exists
Experimental implementation difference and preparation process are complicated, and preparation process is cumbersome, the disadvantage of stability of material difference.
Summary of the invention
The purpose of the present invention is a kind of pliable pressure sensors and pressure sensitive that provide in view of the deficiencies of the prior art
Preparation method, the present invention constitutes flexible substrate using silver electrode to be grown on Kapton, using carbon nanotube with
Dimethyl silicone polymer is mixed and made into pressure sensitive, in the front and back electric with silver in two panels flexible substrate respectively of pressure sensitive
Extremely circular head fitting, and silicone filler layer is filled in two panels flexible substrate between the tail portion of long lead, and is wrapped in pressure
The circular piece periphery of quick material.Pressure sensitive and flexible substrate cooperation have better flexibility and bending resistance, the present invention
It is good with electric property, linear characteristic is good, stability of material is good, intensity is high, temperature resistant range is big, make simple, at low cost and just
In the industrialized production the advantages of.
Realizing the specific technical solution of the present invention is:
A kind of pliable pressure sensor, feature include Kapton, silver electrode, pressure sensitive and silicone filler layer；Institute
State silver electrode and be made of tadpole shape the tail portion on circular head and long lead, silver electrode be grown on Kapton constitute it is soft
Property substrate, the pressure sensitive be disc-shaped, the flexible substrate be two panels, the pressure sensitive it is front and back respectively with
The circular head fitting of silver electrode, silicone filler layer are filled in the tail portion of long lead in two panels flexible substrate in two panels flexible substrate
Between, and it is wrapped in the circular piece periphery of pressure sensitive.
A kind of preparation method of pressure sensitive, it is characterized in that, the preparation step of the pressure sensitive is as follows:
Step 1: 4g dimethyl silicone polymer being instilled in 20ml n-hexane, magnetic agitation, the time is 20min~30min, is turned
Speed is 1500r/min, forms mixed solution；
Step 2: 0.8g carbon nanotube being put into above-mentioned mixed solution, magnetic agitation is continued, the time is 20min~30min；Shape
At carbon nano-tube solution；
Step 2: taking carbon nano-tube solution and DOW CORNING curing agent to match by the weight ratio of 10:1, DOW CORNING curing agent is instilled into carbon
In nanotube solution, magnetic agitation, the time is 50min~60min；Form pressure sensitive；
Step 3: pressure sensitive being prepared into flexible substrate with silk screen print method, a piece of flexible substrate is placed in platform first
On, pressure-sensitive disk mold is placed in the circular head of flexible substrate silver electrode, the silk of 300 mesh is covered on pressure-sensitive disk mold
Net instills pressure sensitive in pressure-sensitive disk mold on the i.e. circular head of silver electrode, is pressurizeed with soft scraper plate, removes silk
The circular head of another flexible substrate silver electrode is covered on pressure-sensitive disk mold, forms pressure-sensitive wafer substrate simultaneously by net
It is placed in warm table solidification, temperature is 150 DEG C, and the time is 60min~90min；
Step 4: removing pressure-sensitive disk mold, complete the preparation of disc-shaped pressure sensitive.
The present invention, which uses for silver electrode 2 to be grown on Kapton 1, constitutes flexible substrate, using carbon nanotube and gathers
Dimethyl siloxane is mixed and made into pressure sensitive, in the front and back electric with silver in two panels flexible substrate respectively of pressure sensitive 3
The fitting of the circular head in pole 2, and silicone filler layer 4 is filled in two panels flexible substrate between the tail portion of long lead, and is wrapped in
The circular piece periphery of pressure sensitive 3.Pressure sensitive 3 and flexible substrate cooperation have better flexibility and bending resistance, this
Invention has that electric property is good, linear characteristic is good, intensity is high, temperature resistant range is big, makes simple, at low cost and convenient for industrial metaplasia
The advantages of production.
The present invention is mixed and made into pressure sensitive using carbon nanotube and dimethyl silicone polymer, under different pressures effect,
Resistance value inside carbon nanotube changes, and makes have linear corresponding relation between pressure and resistance.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the cross-sectional view of Fig. 1；
Fig. 3 is the structural schematic diagram of flexible substrate of the present invention；
Fig. 4 is the structural schematic diagram under the microscope of pressure sensitive of the present invention；
Fig. 5 is the performance diagram of electric current of the present invention and operating pressure.
Specific embodiment
Refering to fig. 1, Fig. 2, Fig. 3, the present invention include Kapton 1, silver electrode 2, pressure sensitive 3 and silicone filler layer
4；The silver electrode 2 is made of tadpole shape the tail portion on circular head and long lead, and silver electrode 2 is grown in Kapton 1
Upper composition flexible substrate, the pressure sensitive 3 be disc-shaped, the flexible substrate be two panels, the pressure sensitive 3 front with
Reverse side is bonded with the circular head of silver electrode 2 in two panels flexible substrate respectively, and silicone filler layer 4 is filled in two panels flexible substrate
Between the tail portion of long lead, and it is wrapped in the circular piece periphery of pressure sensitive 3.
Refering to fig. 1, the preparation step of Fig. 2, Fig. 3, pressure sensitive of the present invention are as follows:
Step 1: 4g dimethyl silicone polymer being instilled in 20ml n-hexane, magnetic agitation, the time is 20min~30min, is turned
Speed is 1500r/min, forms mixed solution；
Step 2: 0.8g carbon nanotube being put into above-mentioned mixed solution, magnetic agitation is continued, the time is 20min~30min；Shape
At carbon nano-tube solution；
Step 2: taking carbon nano-tube solution and DOW CORNING curing agent to match by the weight ratio of 10:1, DOW CORNING curing agent is instilled into carbon
In nanotube solution, magnetic agitation, the time is 50min~60min；Form pressure sensitive；
Step 3: pressure sensitive 3 being prepared into flexible substrate with silk screen print method, a piece of flexible substrate is placed in platform first
On, pressure-sensitive disk mold is placed in the circular head of flexible substrate silver electrode 2, covers 300 purposes on pressure-sensitive disk mold
Silk screen instills pressure sensitive 3 in pressure-sensitive disk mold on the i.e. circular head of silver electrode 2, is pressurizeed with soft scraper plate, removal
The circular head of another flexible substrate silver electrode 2 is covered on pressure-sensitive disk mold, forms pressure-sensitive wafer substrate by silk screen
And it is placed in warm table solidification, temperature is 150 DEG C, and the time is 60min~90min；
Step 4: removing pressure-sensitive disk mold, complete the preparation of disc-shaped pressure sensitive 3.
Refering to fig. 1, Fig. 4, the structural schematic diagram that the circular piece of pressure sensitive of the present invention is read under the microscope.
Embodiment 1
The preparation step of pressure sensitive of the present invention is as follows:
Step 1: 4g dimethyl silicone polymer being instilled in 20ml n-hexane, magnetic agitation, time 30min, revolving speed is
1500r/min forms mixed solution；
Step 2: 0.8g carbon nanotube being put into above-mentioned mixed solution, magnetic agitation, time 30min are continued；Carbon is formed to receive
Mitron solution；
Step 2: taking carbon nano-tube solution and DOW CORNING curing agent to match by the weight ratio of 10:1, DOW CORNING curing agent is instilled into carbon
In nanotube solution, magnetic agitation, time 60min；Form pressure sensitive；
Step 3: pressure sensitive 3 being prepared into flexible substrate with silk screen print method, a piece of flexible substrate is placed in platform first
On, pressure-sensitive disk mold is placed in the circular head of flexible substrate silver electrode 2, covers 300 purposes on pressure-sensitive disk mold
Silk screen instills pressure sensitive 3 in pressure-sensitive disk mold on the i.e. circular head of silver electrode 2, is pressurizeed with soft scraper plate, removal
The circular head of another flexible substrate silver electrode 2 is covered on pressure-sensitive disk mold, forms pressure-sensitive wafer substrate by silk screen
And it is placed in warm table solidification, temperature is 150 DEG C, time 1.5h；
Step 4: removing pressure-sensitive disk mold, complete the preparation of disc-shaped pressure sensitive 3.
Embodiment 2
Refering to fig. 1, Fig. 2, Fig. 3, Fig. 5, the present invention are mixed and made into pressure sensitive using carbon nanotube and dimethyl silicone polymer,
Under different pressures effect, the resistance value inside carbon nanotube changes, and makes have linear corresponding pass between operating pressure and electric current
System.
When work, ammeter is connected on the long lead of silver electrode 2 of the present invention, 3 position of pressure sensitive of the invention is placed in
The normal pressure direction of testing pressure meter side pressure contact, by the surface of side pressure contact pressure sensitive 3, to the table of pressure sensitive 3
Face applies the power of 1~10N.With the increase of pressure, the current value shown on ammeter linearly increases, and is proportional to positive pressure
Power.Present invention can apply to various curved interfaces, the pressure measurement of irregular interface.
Claims (2)
1. a kind of pliable pressure sensor, which is characterized in that it includes Kapton (1), silver electrode (2), pressure sensitive
(3) and silicone filler layer (4)；The silver electrode (2) constitutes tadpole shape, silver electrode by the tail portion on circular head and long lead
(2) it is grown on Kapton (1) and constitutes flexible substrate, the pressure sensitive (3) is disc-shaped, and the flexible substrate is
Two panels, the front and back of the pressure sensitive (3) are bonded with silver electrode (2) circular head in two panels flexible substrate respectively,
Silicone filler layer (4) is filled in two panels flexible substrate between the tail portion of long lead, and is wrapped in the circular piece of pressure sensitive (3)
Periphery.
2. a kind of preparation method of pressure sensitive, which is characterized in that the preparation step of the pressure sensitive is as follows:
Step 1: 4g dimethyl silicone polymer being instilled in 20ml n-hexane, magnetic agitation, the time is 20min~30min, is turned
Speed is 1500r/min, forms mixed solution；
Step 2: 0.8g carbon nanotube being put into above-mentioned mixed solution, magnetic agitation is continued, the time is 20min~30min；Shape
At carbon nano-tube solution；
Step 2: taking carbon nano-tube solution and DOW CORNING curing agent to match by the weight ratio of 10:1, DOW CORNING curing agent is instilled into carbon
In nanotube solution, magnetic agitation, the time is 50min~60min；Form pressure sensitive；
Step 3: pressure sensitive (3) being prepared into flexible substrate with silk screen print method, is first placed in a piece of flexible substrate flat
On platform, pressure-sensitive disk mold is placed in the circular head of flexible substrate silver electrode (2), covers 300 on pressure-sensitive disk mold
Purpose silk screen, it is on the circular head of silver electrode (2), with soft scraper plate in pressure-sensitive disk mold that pressure sensitive (3), which are instilled,
Pressurization removes silk screen, the circular head of another flexible substrate silver electrode (2) is covered on pressure-sensitive disk mold, is formed
Pressure-sensitive wafer substrate is simultaneously placed in warm table solidification, and temperature is 150 DEG C, and the time is 60min~90min；
Step 4: removing pressure-sensitive disk mold, complete the preparation of disc-shaped pressure sensitive (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302948.5A CN110006560A (en) | 2019-04-16 | 2019-04-16 | A kind of preparation method of pliable pressure sensor and pressure sensitive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910302948.5A CN110006560A (en) | 2019-04-16 | 2019-04-16 | A kind of preparation method of pliable pressure sensor and pressure sensitive |
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| CN110006560A true CN110006560A (en) | 2019-07-12 |
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| CN201910302948.5A Pending CN110006560A (en) | 2019-04-16 | 2019-04-16 | A kind of preparation method of pliable pressure sensor and pressure sensitive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344861A (en) * | 2020-11-05 | 2021-02-09 | 辽宁大学 | Novel method for testing roadway surrounding rock support deformation |
| CN114964575A (en) * | 2022-05-24 | 2022-08-30 | 四川大学 | Composite membrane flexible pressure sensor doped with isopropanol and preparation method thereof |
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| CN108775979A (en) * | 2018-05-10 | 2018-11-09 | 西安建筑科技大学 | A kind of high sensitivity pliable pressure sensor and preparation method thereof |
| CN109489873A (en) * | 2018-10-19 | 2019-03-19 | 南京理工大学 | A method of pressure sensor is prepared using nano-Ag particles ink |
| CN209639868U (en) * | 2019-04-16 | 2019-11-15 | 华东师范大学 | A kind of pliable pressure sensor |
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2019
- 2019-04-16 CN CN201910302948.5A patent/CN110006560A/en active Pending
Patent Citations (5)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344861A (en) * | 2020-11-05 | 2021-02-09 | 辽宁大学 | Novel method for testing roadway surrounding rock support deformation |
| CN112344861B (en) * | 2020-11-05 | 2022-06-14 | 辽宁大学 | Novel method for testing roadway surrounding rock support deformation |
| CN114964575A (en) * | 2022-05-24 | 2022-08-30 | 四川大学 | Composite membrane flexible pressure sensor doped with isopropanol and preparation method thereof |
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