CN108760099A - Preparation process for high sensitivity voltage sensitive sensor - Google Patents

Preparation process for high sensitivity voltage sensitive sensor Download PDF

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Publication number
CN108760099A
CN108760099A CN201810313722.0A CN201810313722A CN108760099A CN 108760099 A CN108760099 A CN 108760099A CN 201810313722 A CN201810313722 A CN 201810313722A CN 108760099 A CN108760099 A CN 108760099A
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China
Prior art keywords
polyurethane foam
high sensitivity
sensitive sensor
mixed liquor
conductive electrode
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CN201810313722.0A
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Chinese (zh)
Inventor
涂大记
杨晓明
杨慧慧
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Zhejiang Ouren New Material Co Ltd
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Zhejiang Ouren New Material Co Ltd
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Priority to CN201810313722.0A priority Critical patent/CN108760099A/en
Publication of CN108760099A publication Critical patent/CN108760099A/en
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    • 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
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/38—Paints containing free metal not provided for above in groups C09D5/00 - C09D5/36
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/08—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of piezoelectric devices, i.e. electric circuits therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243—Coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B32B2255/102—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer synthetic resin or rubber layer being a foamed layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/24—Organic non-macromolecular coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • 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
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nanotechnology (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The present invention discloses a kind of flexible pressure-sensitive sensor, including upper conductive electrode, sensing medium layer, lower conductive electrode, the sensing medium layer are obtained by following steps：After nano silver wire aqueous dispersions, water-based acrylic resin, ethyl alcohol, polyvinylpyrrolidone, alkyl phenol polyoxyethylene ether, polyethylene glycol mix isooctyl phenyl ether, isooctyl acid bismuth, toluene di-isocyanate(TDI), disperseed to obtain mixed liquor by ultrasonic wave；Mixed liquor is injected in polyurethane foam ontology, then the polyurethane foam ontology for being injected with mixed liquor is immersed in mixed liquor；Repeatedly repeatedly extrude the polyurethane foam ontology by step 2；The polyurethane foam ontology for being soaked with mixed liquor Jing Guo step 3 is positioned in oven and is dried.Flexible, bend-resistance of the invention can perceive slight pressure, while still have high sensitivity at elevated pressures, also allow for the device for designing various sensitivity and range, and synthesis precision is less than 0.2%FS, and reliability is high.

Description

Preparation process for high sensitivity voltage sensitive sensor
Technical field
The present invention relates to sensor technical fields, more particularly to a kind of preparation work for high sensitivity voltage sensitive sensor Skill.
Background technology
Pressure sensor according to material can be divided into piezoelectric transducer based on piezoelectric material and based on pressure drag material Piezoresistance sensor.It is made for sensing element by piezoelectric ceramics, piezo-electric crystal, piezo-electric electret and organic piezoelectric film etc. Piezoelectric transducer generate transferable charge in material surface when under pressure, voltage when charge passes through detection device can With the size of direct reaction pressure.Using the materials such as alloy sensitive grid, semiconductor be the piezoresistance sensor of sensing element be pressurized when Deformation is generated, deformation causes the resistance of sensing element to change, and the variation of sensitive original paper resistance is detected by Wheatstone bridge It can detect the pressure size being applied on voltage sensitive sensor.
Existing pressure sensor is not often resistant to bending, and sensitivity is also inadequate, and the sensor of pressure sensitive measures pressure Error can reach 20% or so, and accuracy of measurement is poor, how to overcome above-mentioned technical problem and improve, become people in the art The direction that member makes great efforts.
Invention content
It is an object of the present invention to provide a kind of preparation process for high sensitivity voltage sensitive sensor, what this preparation process obtained High sensitivity voltage sensitive sensor is flexible, bend-resistance, can perceive slight pressure, while still having at elevated pressures highly sensitive Degree, accuracy of detection is reproducible, also allows for the device for designing various sensitivity and range.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of system for high sensitivity voltage sensitive sensor Standby technique, the high sensitivity voltage sensitive sensor includes upper conductive electrode, sensing medium layer, lower conductive electrode, the upper conduction Electrode, lower conductive electrode pass through the first conductive adhesive layer, the second conductive gluing with sensing medium layer upper and lower surface respectively Layer connection, the sensing medium layer include polyurethane foam ontology and are filled in polyurethane foam body surface and intrapore sense Coat is answered to form, the induction coat is composed of the following components：
100 parts of nano silver wire aqueous dispersions,
3 ~ 5 parts of water-based acrylic resin,
20 ~ 30 parts of ethyl alcohol,
0.4 ~ 0.6 part of polyvinylpyrrolidone,
0.2 ~ 0.5 part of alkyl phenol polyoxyethylene ether,
Polyethylene glycol to 0.4 ~ 0.8 part of isooctyl phenyl ether,
0.2 ~ 0.5 part of isooctyl acid bismuth,
0.1 ~ 0.3 part of toluene di-isocyanate(TDI)；
The sensing medium layer is obtained by following steps：
Step 1: by 100 parts of nano silver wire aqueous dispersions, 3 ~ 5 parts of water-based acrylic resin, 20 ~ 30 parts of ethyl alcohol, polyvinyl pyrrole 0.4 ~ 0.6 part of alkanone, 0.2 ~ 0.5 part of alkyl phenol polyoxyethylene ether, polyethylene glycol are to 0.4 ~ 0.8 part of isooctyl phenyl ether, different pungent After 0.1 ~ 0.3 part of 0.2 ~ 0.5 part of sour bismuth, toluene di-isocyanate(TDI) mixing, disperseed to obtain mixed liquor by ultrasonic wave；
Step 2: the mixed liquor is injected in polyurethane foam ontology, then the polyurethane foam ontology that mixed liquor will be injected with It immerses in mixed liquor；
Step 3: squeezing the polyurethane foam ontology Jing Guo step 2；
It is dried Step 4: the polyurethane foam ontology for being soaked with mixed liquor Jing Guo step 3 is positioned in oven, to obtain There is the polyurethane foam ontology of induction coat in surface and hole.
It is as follows that technical solution is further improved in above-mentioned technical proposal：
1, in said program, the polyurethane foam ontology is provided with the first through hole of a perforation upper and lower surface, it is described on There is conductive electrode a branch electrodes item, this branch electrodes one end to be electrically connected with upper conductive electrode, and the other end is to lower conduction Extend second through hole of electrode.
2, in said program, the branch electrodes item is located at the middle section of upper conductive electrode.
3, in said program, the upper conductive electrode, lower conductive electrode by flexible base film and are coated on flexible base film surface Nano silver wire coating composition.
4, in said program, the flexible base film is PET film or TPU film.
5, in said program, the lower conductive electrode lower surface is provided with several and is electrically connected solder joint.
6, in said program, the extrusion passes of the step 3 at least 2 times.
7, in said program, the step 2 immerses quiet to 2 ~ 5 minutes in mixed liquor.
Since above-mentioned technical proposal is used, the present invention has following advantages and effect compared with prior art：
The present invention is used for the preparation process of high sensitivity voltage sensitive sensor, and it is flexible, resistance to obtain high sensitivity voltage sensitive sensor Bending can perceive slight pressure, while still have high sensitivity at elevated pressures, also allow for designing various sensitivity and amount The device of journey, synthesis precision are less than 0.2%FS, and reliability is high, durability is good；Secondly, induction coat contains isooctyl acid bismuth 0.2 ~ 0.5 part, 0.1 ~ 0.3 part of toluene di-isocyanate(TDI) are conducive to improve induction coat and polyurethane foam ontology adhesive force, To ensure that, by 10000 cyclic tests, detection data is stablized, and accuracy of detection is reproducible.
Description of the drawings
Attached drawing 1 is the high sensitivity voltage sensitive sensor structural schematic diagram that preparation process of the present invention obtains；
Attached drawing 2 is the partial structural diagram of attached drawing 1.
In the figures above：1, upper conductive electrode；2, sensing medium layer；21, polyurethane foam ontology；3, lower conductive electrode； 4, the first conductive adhesive layer；5, the second conductive adhesive layer；6, first through hole；7, branch electrodes item；8, the second through-hole；9, electrically connect Connect solder joint；10, flexible base film；11, nano silver wire coating.
Specific implementation mode
With reference to embodiment, the invention will be further described：
Embodiment 1 ~ 4：A kind of preparation process for high sensitivity voltage sensitive sensor, the high sensitivity voltage sensitive sensor include Upper conductive electrode 1, sensing medium layer 2, lower conductive electrode 3, the upper conductive electrode 1, lower conductive electrode 3 respectively with sensor information 2 upper and lower surface of layer are connected by the first conductive adhesive layer 4, the second conductive adhesive layer 5, and the sensing medium layer 2 includes It polyurethane foam ontology 21 and is filled in 21 surface of polyurethane foam ontology and intrapore induction coat and forms, the induction Coat is composed of the following components, as shown in table 1：
Table 1
The sensing medium layer 2 is obtained by following steps：
Step 1: by 100 parts of nano silver wire aqueous dispersions, 3 ~ 5 parts of water-based acrylic resin, 20 ~ 30 parts of ethyl alcohol, polyvinyl pyrrole 0.4 ~ 0.6 part of alkanone, 0.2 ~ 0.5 part of alkyl phenol polyoxyethylene ether, polyethylene glycol are to 0.4 ~ 0.8 part of isooctyl phenyl ether, different pungent After 0.1 ~ 0.3 part of 0.2 ~ 0.5 part of sour bismuth, toluene di-isocyanate(TDI) mixing, disperseed to obtain mixed liquor by ultrasonic wave；
Step 2: the mixed liquor is injected in polyurethane foam ontology 21, then the polyurethane foam sheet that mixed liquor will be injected with Body 21 immerses in mixed liquor, quiet to 2 ~ 5 minutes；
Step 3: repeatedly repeatedly extruding the polyurethane foam ontology 21 by step 2；
It is dried Step 4: the polyurethane foam ontology 21 for being soaked with mixed liquor Jing Guo step 3 is positioned in oven, to obtain Obtaining has the polyurethane foam ontology 21 of induction coat in surface and hole.
When being used for the preparation process of high sensitivity voltage sensitive sensor using the present invention, high sensitivity voltage sensitive sensor is obtained Flexible, bend-resistance can perceive slight pressure, while still have high sensitivity at elevated pressures, also allow for designing various The device of sensitivity and range, synthesis precision are less than 0.2%FS, and reliability is high, durability is good；Secondly, induction coat contains 0.2 ~ 0.5 part of isooctyl acid bismuth, 0.1 ~ 0.3 part of toluene di-isocyanate(TDI) are conducive to improve induction coat and polyurethane foam sheet Body adhesive force, to ensure that, by 10000 cyclic tests, detection data is stablized, and accuracy of detection is reproducible.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.

Claims (8)

1. a kind of preparation process for high sensitivity voltage sensitive sensor, it is characterised in that：The high sensitivity voltage sensitive sensor Including upper conductive electrode（1）, sensing medium layer（2）, lower conductive electrode（3）, the upper conductive electrode（1）, lower conductive electrode（3） Respectively with sensing medium layer（2）Upper and lower surface passes through the first conductive adhesive layer（4）, the second conductive adhesive layer（5）Connection, The sensing medium layer（2）Including polyurethane foam ontology（21）Be filled in polyurethane foam ontology（21）In surface and hole Induction coat composition, the induction coat is composed of the following components：100 parts of nano silver wire aqueous dispersions, aqueous acrylamide 3 ~ 5 parts of acid resin, 20 ~ 30 parts of ethyl alcohol, 0.2 ~ 0.5 part of alkyl phenol polyoxyethylene ether, gather 0.4 ~ 0.6 part of polyvinylpyrrolidone Ethylene glycol is to 0.4 ~ 0.8 part of isooctyl phenyl ether, 0.2 ~ 0.5 part of isooctyl acid bismuth, 0.1 ~ 0.3 part of toluene di-isocyanate(TDI)；
The sensing medium layer（2）It is obtained by following steps：
Step 1: by 100 parts of nano silver wire aqueous dispersions, 3 ~ 5 parts of water-based acrylic resin, 20 ~ 30 parts of ethyl alcohol, polyvinyl pyrrole 0.4 ~ 0.6 part of alkanone, 0.2 ~ 0.5 part of alkyl phenol polyoxyethylene ether, polyethylene glycol are to 0.4 ~ 0.8 part of isooctyl phenyl ether, different pungent After 0.1 ~ 0.3 part of 0.2 ~ 0.5 part of sour bismuth, toluene di-isocyanate(TDI) mixing, disperseed to obtain mixed liquor by ultrasonic wave；
Step 2: the mixed liquor is injected polyurethane foam ontology（21）Polyurethane foam that is interior, then mixed liquor will being injected with Ontology（21）It immerses in mixed liquor；
Step 3: squeezing the polyurethane foam ontology Jing Guo step 2（21）；
Step 4: by the polyurethane foam ontology for being soaked with mixed liquor Jing Guo step 3（21）It is positioned in oven and dries, to Obtaining has the polyurethane foam ontology of induction coat in surface and hole（21）.
2. the preparation process according to claim 1 for high sensitivity voltage sensitive sensor, it is characterised in that：The poly- ammonia Ester foam ontology（21）It is provided with the first through hole of a perforation upper and lower surface（6）, the upper conductive electrode is with a branch Electrode strip（7）, this branch electrodes item（7）One end is electrically connected with upper conductive electrode, and the other end is to lower conductive electrode（3）Second Through-hole（8）Extend at place.
3. the preparation process according to claim 2 for high sensitivity voltage sensitive sensor, it is characterised in that：The branch Electrode strip（7）Positioned at the middle section of upper conductive electrode.
4. the preparation process according to claim 2 for high sensitivity voltage sensitive sensor, it is characterised in that：It is led on described Electrode（1）, lower conductive electrode（3）By flexible base film（10）With coated on flexible base film（10）The nano silver wire coating on surface （11）Composition.
5. the preparation process according to claim 4 for high sensitivity voltage sensitive sensor, it is characterised in that：The flexibility Basement membrane is PET film or TPU film.
6. the preparation process according to claim 1 for high sensitivity voltage sensitive sensor, it is characterised in that：It is led under described Electrode lower surface is provided with several and is electrically connected solder joint（9）.
7. the preparation process according to claim 1 for high sensitivity voltage sensitive sensor, it is characterised in that：The step Three extrusion passes at least 2 times.
8. the preparation process according to claim 1 for high sensitivity voltage sensitive sensor, it is characterised in that：The step It is quiet to 2 ~ 5 minutes in two immersion mixed liquors.
CN201810313722.0A 2018-04-10 2018-04-10 Preparation process for high sensitivity voltage sensitive sensor Pending CN108760099A (en)

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