CN108827136B - A method of flexible strain transducer is prepared using waste and old thermosetting resin - Google Patents
A method of flexible strain transducer is prepared using waste and old thermosetting resin Download PDFInfo
- Publication number
- CN108827136B CN108827136B CN201810335615.8A CN201810335615A CN108827136B CN 108827136 B CN108827136 B CN 108827136B CN 201810335615 A CN201810335615 A CN 201810335615A CN 108827136 B CN108827136 B CN 108827136B
- Authority
- CN
- China
- Prior art keywords
- waste
- thermosetting resin
- strain transducer
- char
- old
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Carbon And Carbon Compounds (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of methods for preparing flexible strain transducer using waste and old thermosetting resin, after including the following steps: S1, waste and old thermosetting resin being processed into designated shape, high temperature cabonization processing is carried out in an inert atmosphere, obtains the char-forming material with porous structure；S2, scale copper is bonded on char-forming material as electrode, and welding metal conducting wire constitutes the access outside connection on scale copper；S3, configuration polymer elastomer liquid；S4, char-forming material electrode is put into the mold of designated shape, carries out casting encapsulation with polymeric liquid, obtains flexible strain transducer.The present invention is based on waste and old thermosetting resins as the flexible strain transducer of raw material preparation, has many advantages, such as that flexible, high sensitivity, response time are short, fatigue durability is good, and realize scrap concrete recycling, significant to environmental protection.
Description
Technical field
The invention belongs to field of sensing technologies, and in particular to a kind of to prepare flexible strain sensing using waste and old thermosetting resin
The method of device.
Background technique
Strain transducer be it is a kind of dependent variable is converted into electric signal, for measure strain, displacement, pressure, torsion etc.
The functional electric device of behavior.Traditional strain transducer is mostly based on metal and semiconductor material, but its rigidity is larger,
Deflection is small, is not suitable for detecting a wide range of deformation and the various compound movements of human body.Flexible strain transducer overcomes tradition
The disadvantages of strain transducer is frangible, and deformation range is small, while being also equipped with biocompatibility, big deformability and can be worn at the transparency
The advantages such as the property worn have obtained very fast development in recent years.Flexible sensor is mainly by the active material of conductive energy
Material and the flexible base material for playing packaging protection to active material form, wherein the selection of active material passes flexibility
The performance of sensor has a major impact.The active material for the flexible strain transducer reported at present includes: metal nano material (metal
Nanoparticle, metal nanometer line), nano-carbon material (carbon black, carbon nanotube, graphene) and organic material etc..
Thermosetting resin is extensive because it has many advantages, such as that rigidity is big, hardness is high, heatproof is high, product size stability is good
Applied to household electric appliances, automobile manufacture, construction material etc..However, the large-scale production and use of thermosetting plastics will produce
Raw a large amount of waste product, and since thermosetting plastics has the characteristic of indissoluble infusibility, so that recycling extremely difficult.It is useless
The continuous accumulation of old thermosetting plastics will bring huge environmental pressure to society, generate harm to the ecosystem.Therefore add
By force to the research of the recycling of thermosetting plastics and recycling, have great importance to protecting environment and economizing on resources.
Summary of the invention
The object of the present invention is to provide a kind of sides that flexible strain transducer is prepared using waste and old thermosetting resin as raw material
Method not only solves the problem of waste and old thermosetting resin recycling and reusing difficulty, also compensates for existing sensor in the scope of application
With the deficiency of have a single function etc..
In order to realize these purposes and other advantages of the invention, waste and old thermosetting resin system is utilized the present invention provides a kind of
Waste and old thermosetting resin is carried out high temperature cabonization processing in an inert atmosphere and carbonization material is made by the method for standby flexibility strain transducer
Material；It is installed on char-forming material and electrode and connects outer lead, reused polymer elastomer and be packaged solidification to get to soft
Property strain transducer.
The above-mentioned method for preparing flexible strain transducer using waste and old thermosetting resin, specifically comprises the following steps:
S1, after waste and old thermosetting resin is processed into designated shape, high temperature cabonization processing, heating are carried out in an inert atmosphere
It is 1-5 DEG C/min with rate of temperature fall, heat treatment temperature is 400-1200 DEG C, and constant temperature 1-4h obtains the carbonization with porous structure
Material, as the active material of flexible sensor, the inert atmosphere is nitrogen or argon gas；
S2, scale copper is bonded on char-forming material by conductive silver paste, and as electrode, and on scale copper, welding metal is led
Line constitutes the access outside connection；Or the bonded metal conducting wire directly on char-forming material, char-forming material electrode is made；
S3, polymer elasticity liquid solution for encapsulating char-forming material is prepared；
S4, the char-forming material electrode that step S2 is obtained is put into the mold of designated shape, the polymerization prepared with step S3
Object elastomer solution carries out casting encapsulation, obtains flexible strain transducer.
Preferably, the above method further includes carrying out pre-treatment step, concrete operations to waste and old thermosetting resin are as follows: will
Waste and old thermosetting resin raw material are screened, and removal of impurities is dried after then being cleaned with ethyl alcohol and deionized water, to following process
Molding and high temperature cabonization processing.
Preferably, the waste and old thermosetting resin be epoxy resin, phenolic resin, benzoxazine resin, Lauxite,
Melamine formaldehyde resin, polyurethane and its foamed material are one such.
Preferably, in the step S1, machine-shaping is determined according to the shape size of waste and old thermosetting resin raw material
Method.If waste and old thermosetting resin raw material are smaller piece shape or graininess, by Mechanical Crushing, it is ground into thermosetting property powder
End, then powder is placed on progress high temperature cabonization processing in designated shape mold；If waste and old thermosetting resin raw material are larger
Bulk or plate, be cut directly into after designated shape and carry out high temperature cabonization processing.
Preferably, the polymer elastomer be rubber, silicon-based polymer elastomer, polyurethane or polyvinyl alcohol wherein
One kind.
It may further be preferable that the polymer elastomer is dimethyl silicone polymer, solidification temperature is 80-100 DEG C,
Curing time is 30-60min.
Preferably, the step S4 specifically: the char-forming material electrode that step S2 is obtained is put into the mould of designated shape
In tool, it is cast into mold with polymer elasticity liquid solution prepared by step S3, is put into vacuum drying oven, removed under reduced pressure gas under room temperature
Bubble, then solidifies 40min at 100 DEG C, obtains flexible strain transducer.
It may further be preferable that using waste and old benzoxazine resin as raw material, the step S1 specifically: after pretreatment
Waste and old benzoxazine resin be cut into the square block of the long 10mm of size, width 10mm, high 3mm, tubular heater is put into, with nitrogen
For inert gas, nitrogen flow rate 120mL/min is raised to 200 DEG C from room temperature with the heating rate of 5 DEG C/min first, then with 2
DEG C/heating rate of min is raised to 800 DEG C, constant temperature 120min is finally down to room temperature with the rate of temperature fall of 5 DEG C/min, is had
The square block char-forming material of porous structure.
The invention has the beneficial effects that:
(1) the highly cross-linked network structure that thermosetting resin strand has, by high warm in inert ambient environment
Solution processing will obtain keeping former shaped porous structure char-forming material substantially.On the one hand, thermosetting resin carbonization after have compared with
Good electric conductivity；On the other hand, there are a large amount of stomatas in char-forming material, so that the diaphragm between adjacent air holes is relatively thin, arris is crisp
Weak, when material is in the deformation such as Tensile or compression, pore structure is easy to happen collapsing and destruction, seriously affects char-forming material
Electric conductivity, characteristic of this electric conductivity vulnerable to influence of crust deformation impart the good strain sensing performance of char-forming material, are allowed into
The active material of flexible strain transducer is preferably used to prepare for one kind；In another aspect, the porous structure of char-forming material, favorably
It infiltrates in polymer elastomer prepolymer liquid to material internal, can combine closely with char-forming material after solidifying it, guarantee
Porous structure can effectively restore after disruption, and flexible sensor is made to have preferable fatigue performance.
(2) flexible strain transducer is prepared using the method for the present invention, shape and size can pass through the shape of change mold
Shape is adjusted, it can be achieved that answer deformation type to be monitored and (stretch, bending, torsion, compression etc.) to different, compensates for current biography
Sensor the scope of application and in terms of deficiency；The strain transducer has flexible, high sensitivity, response simultaneously
The advantages that time is short, fatigue durability is good, and can be realized by being directly affixed on skin or clothing to human body joint motion, face
The monitoring of the motion informations such as expression and sounding vibration；And process of preparing is simple, method is reliable and stable.
(3) the waste and old thermosetting resin raw material sources that the present invention uses are extensive, cheap, due to being to waste and old resin
Recycling and reusing, thus it is significant to environmental protection.
Detailed description of the invention
Fig. 1, waste and old thermosetting resin prepare the preparation flow schematic diagram of flexible strain transducer.
Fig. 2, a are the scanning electron microscope diagram of benzoxazine resin carbonization sample in embodiment 1；B is phenolic aldehyde in embodiment 2
The scanning electron microscope diagram of resin foam carbonization sample.
The structural schematic diagram of flexible compression strain transducer prepared by Fig. 3, embodiment 1.
The structural schematic diagram of Fig. 4, soft stretch prepared by embodiment 2 and bending strain sensor.
The motion conditions testing result of flexible strain transducer prepared by Fig. 5, embodiment 2 to right human hand index finger.
The motion conditions testing result of flexible strain transducer prepared by Fig. 6, embodiment 2 to the right knee of human body.
The testing result of flexible strain transducer prepared by Fig. 7, embodiment 2 to human body face blink motor message.
The testing result of flexible strain transducer prepared by Fig. 8, embodiment 2 to human body face smiling movement signal.
Flexible strain transducer prepared by Fig. 9, embodiment 2 speaks the testing result of behavior to tester.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Fig. 1 is seen using the preparation flow schematic diagram that waste and old thermosetting resin prepares flexible strain transducer.
Embodiment 1
Flexible compression strain transducer is prepared through high-temperature heat treatment using benzoxazine resin as raw material, specific steps are such as
Under:
Step S1, waste and old benzoxazine resin raw material are screened, cleans, is then cleaned with ethyl alcohol and deionized water
After dry, the waste and old benzoxazine resin then dried is cut into 10 × 10 × 3mm3The square block of size is put into tubular type heating
Furnace；Using nitrogen as inert atmosphere (nitrogen flow rate 120mL/min), high temperature cabonization handles benzoxazine resin at 800 DEG C；Specifically
Heat treatment process: being raised to 200 DEG C from room temperature with the heating rate of 5 DEG C/min first, is then raised to the heating rate of 2 DEG C/min
800 DEG C, constant temperature 120min is finally down to room temperature with the rate of temperature fall of 5 DEG C/min；Though having after the carbonization of benzoxazine resin square block
It is expanded, but preferably keeps the shape of its square block.The scanning electron microscopy of benzoxazine resin carbonization sample internal pore structure
Mirror figure is shown in that a schemes in Fig. 2.
Step S2, the upper and lower surface with conductive silver paste in benzoxazine resin carbonization sample adheres to sizeable thin copper
Then piece is welded to plain conductor on scale copper with scolding tin, constitute the access outside connection, obtains carbonization sample electrode, spare.
Step S3, polymer elasticity liquid solution select DOW CORNING casting glue (product name: SYLGARD 184) configuration and
At.The casting glue is two-component mobility liquid, including host agent (dimethyl silicone polymer) and curing agent, by polydimethylsiloxanes
Alkane and curing agent 10:1 in mass ratio mixing, after stirring and evenly mixing, are put in vacuum drying oven, and decompression abjection bubble 10 divides under room temperature
Clock to get arrive polymer elasticity liquid solution.
Step S4, carbonization sample electrode prepared by step S2 is fixed in compression original mold tool, then gathered what step S3 was obtained
It closes object elastomer solution and is cast into mold, be put into vacuum drying oven, removed under reduced pressure bubble under room temperature；Then solidify at 100 DEG C
40min obtains the flexible compression strain transducer based on benzoxazine resin.The structural schematic diagram of the sensor is shown in Fig. 3, figure
In, 1 it is polymer elastomer, 2 be resin carbonation sample, 3 be copper sheet, 4 is plain conductor.
Embodiment 2
Soft stretch and bending strain sensor are prepared through high-temperature heat treatment using phenolic resin foam as raw material, it is specific to walk
It is rapid as follows:
Step S1, waste and old phenolic resin foam raw material are screened, cleans, is then cleaned with ethyl alcohol and deionized water
After dry, the waste and old phenolic resin foam after drying is then cut into 20 × 7 × 2.5mm3The rectangular tab of size, is put into pipe
Formula heating furnace, using nitrogen as inert atmosphere (nitrogen flow rate 120mL/min), the high temperature cabonization processing phenolic resin bubble at 700 DEG C
Foam；Specific heat treatment process: being raised to 200 DEG C from room temperature with the heating rate of 5 DEG C/min first, then with the heating of 2 DEG C/min
Rate is raised to 700 DEG C and constant temperature 120min, then is down to room temperature with 5 DEG C/min of rate of temperature fall, obtains the phenolic aldehyde of rectangular sheet
Foam carbonization sample.The scanning electron microscope diagram of phenol formaldehyde foam carbonization sample internal pore structure is shown in Fig. 2 b.
Step S2, sizeable scale copper is adhered in the left and right ends of phenol formaldehyde foam carbonization sample with conductive silver paste, so
Plain conductor is welded on scale copper with scolding tin afterwards, is prepared into carbonization sample electrode, it is spare.
Step S3, polymer elasticity liquid solution select DOW CORNING casting glue (product name: SYLGARD 184) configuration and
At.The casting glue is two-component mobility liquid, including host agent (dimethyl silicone polymer) and curing agent, by polydimethylsiloxanes
Alkane and curing agent 10:1 in mass ratio mixing, after stirring and evenly mixing, are put in vacuum drying oven, and decompression abjection bubble 10 divides under room temperature
Clock to get arrive polymer elasticity liquid solution.
Step S4, carbonization sample electrode prepared by step S2 is fixed in specified mold, then the polymerization that step S3 is obtained
Object elastomer solution is cast into mold, is put into vacuum drying oven, removed under reduced pressure bubble under room temperature；Then solidify at 100 DEG C
40min obtains the soft stretch and bending strain sensor based on phenolic resin foam.The structural schematic diagram of the sensor is shown in figure
4, in figure, 1 it is polymer elastomer, 2 is resin carbonation sample, 3 is copper sheet, 4 is plain conductor.
Embodiment 3
Soft stretch and bending strain sensor are prepared through high-temperature heat treatment using benzoxazine resin powder as raw material, is had
Steps are as follows for body:
Step S1, firstly, using high speed Universal pulverizer will by pretreated waste and old benzoxazine resin be ground into compared with
Fine grained, single grinding time are no more than 15 seconds, crush three times；Then, benzoxazine resin fine grained is placed in planetary ball
Ball milling is carried out in grinding machine, specific mechanical milling process: being dry grinded with stainless steel ball under solvent-free conditions, revolving speed 400rpm, when
Between be 6h；After ball milling, the standard analysis of levigate benzoxazine resin powder 100-300 mesh is sieved through sieve, it is equal to obtain partial size
Even benzoxazine resin fine powder；It takes appropriate benzoxazine resin fine powder in the mold of designated shape, sprawls uniformly, then put
High-temperature heat treatment is carried out to tubular heater, specific heat treatment process: (nitrogen flow rate 120mL/ minutes) in a nitrogen atmosphere, it is first
200 DEG C first are raised to from room temperature with 5 DEG C/min of heating rate, is then raised to 1000 DEG C with 2 DEG C/min of heating rate, constant temperature
120 minutes, room temperature is finally down to 5 DEG C/min of rate of temperature fall, benzoxazine resin fine powder sinters into through high-temperature heat treatment
Block.
Step S2, blocking carbonization sample will be sintered and is cut into 20 × 7 × 2.5mm3The rectangular tab of size, and use conductive silver
Cream adheres to sizeable scale copper in thin slice left and right ends, and then plain conductor is welded on scale copper with scolding tin, system
It is standby at carbonization sample electrode, it is spare.
Step S3, polymer elastomer encapsulating material selects polyurethane elastomer, takes appropriate polyurethane elastomer (BASF
1185A) in single port bottle, it is put into oil bath pan, heating stirring is extremely melted at 180 DEG C；It, will be single after polyurethane elastomer melts completely
Mouth bottle is transferred to vacuum drying oven, and decompression deviates from bubble 10 minutes to get polymer elasticity liquid solution is arrived at 180 DEG C.
Step S4, the electrode prepared in step S2 is fixed in specified mold, then by the polymer elastomer of step S3
Solution Quick pouring progressive die tool, is then placed in vacuum drying oven, removed under reduced pressure bubble 10 minutes at 180 DEG C；Close vacuum drying oven
Heater, and it is put into air, make polymer elastomer cooled to room temperature under normal pressure, obtains thin based on benzoxazine resin
The soft stretch and bending strain sensor of powder sintering sample.
Embodiment 4
It is that raw material prepare flexible compression strain through high-temperature heat treatment with melamine formaldehyde resin foam (melamine foams)
Sensor, the specific steps are as follows:
S1, pretreated waste and old melamine foams are cut into 15 × 15 × 4mm3The square block of size is put into tubular type and adds
Hot stove, using nitrogen as inert atmosphere (nitrogen flow rate 120mL/ minutes), high temperature cabonization handles melamine foams at 800 DEG C, specifically
Heat treatment process: being raised to 200 DEG C from room temperature with 5 DEG C/min of heating rate first, then with 2 DEG C/min of heating rate liter
To 800 DEG C, constant temperature 120 minutes, room temperature is finally down to 5 DEG C/min of rate of temperature fall；Body after the heat treatment of melamine foams square block
There is larger contraction in product, but can preferably keep its original shape.
S2, with conductive silver paste melamine foams carbonization sample upper and lower surface adhere to sizeable scale copper, then
Plain conductor is welded on scale copper with scolding tin, preparation carbonization sample electrode, spare.
S3, polymer elasticity liquid solution select the casting glue (product name: SYLGARD 184) of DOW CORNING to configure.
The casting glue is two-component mobility liquid, including host agent (dimethyl silicone polymer) and curing agent, by dimethyl silicone polymer
It mixes with curing agent 10:1 in mass ratio, after stirring and evenly mixing, is put in vacuum drying oven, decompression abjection bubble 10 minutes under room temperature,
Obtain polymer elastomer solution.
S4, the carbonization sample electrode that step S2 is prepared is fixed in compression original mold tool, then polymerization prepared by step S3
Object elastomer solution is cast into mold, is put into vacuum drying oven, removed under reduced pressure bubble under room temperature；Then solidify 40 points at 100 DEG C
Clock obtains the flexible compression strain transducer based on melamine foams.
The soft stretch based on phenolic resin foam prepared using embodiment 2 and bending strain sensor for human detection are closed
Save motor message.The strain transducer is fixed on to the right hand index finger joint of tester, the index finger of tester with adhesive tape
- bending-movement stretched continuously is stretched, during this, the electric current of the real time measure strain transducer is opposite to change feelings
Condition, measurement result are shown in Fig. 5.Strain transducer is fixed on to the right knee of tester with adhesive tape, tester carries out continuous
Stretch-bending knee-movement stretched, during this, the curent change situation of the real time measure strain transducer, measurement result is shown in
Fig. 6.From figs. 5 and 6, it can be seen that flexible strain transducer can accurate measurements significantly Bending Deformation (movement of counting on one's fingers it is curved
Bent angle is greater than 90 °), and when joint motions return to original state, electric current relative changing value also substantially completely restores, and says
The bright flexibility strain transducer can not only effectively monitor Bending Deformation, and have preferable stability in use；It can from Fig. 5
Out, (3.) when tester's right hand index finger, which maintains, counts on one's fingers state, current signal keeps horizontal substantially, more stable, illustrates
It determines under strain, the conductive network (porous structure) of sensor internal has preferable structural stability.
Using the soft stretch based on phenolic resin foam of the preparation of embodiment 2, bending strain sensor for human detection face
The micro- expression motor message in portion.The strain transducer is fixed on to the eyes tail position of tester with adhesive tape, tester connects
It is continuous close one's eyes-eye opening-close one's eyes movement.During this, the electric current of the real time measure strain transducer is with respect to situation of change, measurement
As a result see Fig. 7.With adhesive tape by the strain transducer be fixed on tester on the face close to corners of the mouth position, tester continuously into
The movement of the normal expression of the normal expression-smile-of row.During this, the curent change situation of the real time measure strain transducer is surveyed
Determine result and sees Fig. 8.It can be seen that by Fig. 7 and Fig. 8, flexible strain transducer can monitor lesser tensile deformation, illustrate the sensing
Device monitoring sensitivity with higher.
Using the soft stretch based on phenolic resin foam of the preparation of embodiment 2, bending strain sensor for human detection face
Portion micro- expression motor message detection people speaks behavior signal.The flexibility strain transducer is fixed on tester with adhesive tape
Neck Adam's apple on, tester pronunciation successively say " hi ", " sen/sor ", " won/der/ful ", during this, in real time
The curent change situation of strain transducer is measured, measurement result is shown in Fig. 9.As can be seen that the flexibility strain transducer can be accurately
The behavior of speaking that reflection is complicated and amplitude is small, and different pronunciations corresponds to the waveform of the opposite variation of different electric currents, and this has
There may be the potentiality of application on speech identifying function device.
In conclusion the present invention prepares the flexible strain transducer based on thermosetting resin, can monitor including stretching,
Bending, a variety of coping behaviors such as compression, and skin or clothing realization can be directly affixed on to the various joint motions of human body, facial table
The real-time monitoring of the motion informations such as feelings, sounding vibration.And the recycling and reusing of waste and old thermosetting resin is promoted, thus to ring
Border protection is significant.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (7)
1. a kind of method for preparing flexible strain transducer using waste and old thermosetting resin, which comprises the steps of:
S1, after waste and old thermosetting resin is processed into designated shape, high temperature cabonization processing, heating and drop are carried out in an inert atmosphere
Warm rate is 1-5 DEG C/min, and heat treatment temperature is 400-1200 DEG C, and constant temperature 1-4h obtains the char-forming material with porous structure,
Active material as flexible sensor；The waste and old thermosetting resin be epoxy resin, phenolic resin, benzoxazine resin,
Lauxite, melamine formaldehyde resin, polyurethane and its foamed material are one such；If waste and old thermosetting resin is former
Material is smaller piece shape or graininess, by Mechanical Crushing, is ground into powder thermosetting, then powder is placed on designated shape mold
Middle progress high temperature cabonization processing；If waste and old thermosetting resin raw material are biggish blocky or plates, it is cut directly into finger
High temperature cabonization processing is carried out after setting shape；
S2, scale copper is bonded as electrode on char-forming material by conductive silver paste, and the welding metal conducting wire structure on scale copper
At the access outside connection, or the bonded metal conducting wire directly on char-forming material, char-forming material electrode is made；
S3, polymer elasticity liquid solution for encapsulating char-forming material is prepared；
S4, the char-forming material electrode that step S2 is obtained is put into the mold of designated shape, the polymer bullet prepared with step S3
Property liquid solution carries out casting encapsulation, obtains flexible strain transducer.
2. the method for preparing flexible strain transducer using waste and old thermosetting resin as described in claim 1, which is characterized in that
Further include the pre-treatment step of waste and old thermosetting resin: waste and old thermosetting resin raw material are screened, cleans, then use
It is dried after ethyl alcohol and deionized water cleaning, to following process molding and high temperature cabonization processing.
3. the method for preparing flexible strain transducer using waste and old thermosetting resin as described in claim 1, which is characterized in that
The inert atmosphere is nitrogen or argon gas.
4. the method for preparing flexible strain transducer using waste and old thermosetting resin as described in claim 1, which is characterized in that
The polymer elastomer is that rubber, silicon-based polymer elastomer, polyurethane or polyvinyl alcohol are one such.
5. the method for preparing flexible strain transducer using waste and old thermosetting resin as claimed in claim 4, which is characterized in that
The polymer elastomer is dimethyl silicone polymer, and solidification temperature is 80-100 DEG C, curing time 30-60min.
6. the method for preparing flexible strain transducer using waste and old thermosetting resin as described in claim 1, which is characterized in that
The step S4 specifically: the char-forming material electrode that step S2 is obtained is put into the mold of designated shape, is prepared with step S3
Polymer elasticity liquid solution be cast into mold, be put into vacuum drying oven, removed under reduced pressure bubble under room temperature is then solid at 100 DEG C
Change 40min, obtains flexible strain transducer.
7. the method for preparing flexible strain transducer using waste and old thermosetting resin as described in claim 1, which is characterized in that
The step S1 specifically: pretreated waste and old benzoxazine resin is cut into the long 10mm of size, width 10mm, high 3mm
Square block is put into tubular heater, using nitrogen as inert gas, nitrogen flow rate 120mL/min, first with the heating of 5 DEG C/min
Rate is raised to 200 DEG C from room temperature, then 800 DEG C, constant temperature 120min is raised to the heating rate of 2 DEG C/min, finally with 5 DEG C/min
Rate of temperature fall be down to room temperature, obtain the square block char-forming material with porous structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810335615.8A CN108827136B (en) | 2018-04-16 | 2018-04-16 | A method of flexible strain transducer is prepared using waste and old thermosetting resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810335615.8A CN108827136B (en) | 2018-04-16 | 2018-04-16 | A method of flexible strain transducer is prepared using waste and old thermosetting resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108827136A CN108827136A (en) | 2018-11-16 |
| CN108827136B true CN108827136B (en) | 2019-07-02 |
Family
ID=64154729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810335615.8A Active CN108827136B (en) | 2018-04-16 | 2018-04-16 | A method of flexible strain transducer is prepared using waste and old thermosetting resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108827136B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781151B (en) * | 2019-01-22 | 2021-10-26 | 苏州大学 | Sensor with integrated processing of sensing element and elastic sensing element and preparation thereof |
| CN110551308B (en) * | 2019-09-09 | 2022-03-18 | 西南石油大学 | Method for preparing flexible strain sensor by using biomass material |
| CN112629401B (en) * | 2020-12-04 | 2022-04-01 | 山东大学 | Method for manufacturing road surface structure strain sensor and sensor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0772023A (en) * | 1991-08-15 | 1995-03-17 | Shimizu Corp | Distortion/stress detector and distortion/stress detection method of construction using the same |
| JPH10141910A (en) * | 1996-11-15 | 1998-05-29 | Yokohama Rubber Co Ltd:The | Strain measuring instrument |
| CN1519555A (en) * | 2003-09-02 | 2004-08-11 | 郑州大学 | Tester for measuiring bending stress and strain of refractory materials under high temperature |
| WO2004068095A8 (en) * | 2003-01-31 | 2004-09-23 | Fabio Sarchi | Wireless structural health monitoring with elongated carbon fiber or matrix sensor |
| CN1995926A (en) * | 2006-12-22 | 2007-07-11 | 西安森舍电子科技有限责任公司 | High-temperature-resistant high-pressure-resistant ceramic strain gauge sensor and its package curing method |
| CN202582797U (en) * | 2012-03-13 | 2012-12-05 | 东莞市五峰科技有限公司 | Impact-resistance pressure sensor |
| CN103225135A (en) * | 2013-05-09 | 2013-07-31 | 中国科学院化学研究所 | Porous carbon fiber, and preparation method and application thereof |
| CN104882613A (en) * | 2015-03-30 | 2015-09-02 | 中国科学院金属研究所 | Preparation method for flexible and highly-conductive composite carbon fiber cloth |
| CN105482176A (en) * | 2016-01-28 | 2016-04-13 | 深圳市慧瑞电子材料有限公司 | Conductive rubber material for flexible sensor and preparation method and application of conductive rubber material |
| CN105841601A (en) * | 2016-04-26 | 2016-08-10 | 清华大学 | Flexible wearable strain sensor based on fabrics and preparation method thereof |
-
2018
- 2018-04-16 CN CN201810335615.8A patent/CN108827136B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0772023A (en) * | 1991-08-15 | 1995-03-17 | Shimizu Corp | Distortion/stress detector and distortion/stress detection method of construction using the same |
| JPH10141910A (en) * | 1996-11-15 | 1998-05-29 | Yokohama Rubber Co Ltd:The | Strain measuring instrument |
| WO2004068095A8 (en) * | 2003-01-31 | 2004-09-23 | Fabio Sarchi | Wireless structural health monitoring with elongated carbon fiber or matrix sensor |
| CN1519555A (en) * | 2003-09-02 | 2004-08-11 | 郑州大学 | Tester for measuiring bending stress and strain of refractory materials under high temperature |
| CN1995926A (en) * | 2006-12-22 | 2007-07-11 | 西安森舍电子科技有限责任公司 | High-temperature-resistant high-pressure-resistant ceramic strain gauge sensor and its package curing method |
| CN202582797U (en) * | 2012-03-13 | 2012-12-05 | 东莞市五峰科技有限公司 | Impact-resistance pressure sensor |
| CN103225135A (en) * | 2013-05-09 | 2013-07-31 | 中国科学院化学研究所 | Porous carbon fiber, and preparation method and application thereof |
| CN104882613A (en) * | 2015-03-30 | 2015-09-02 | 中国科学院金属研究所 | Preparation method for flexible and highly-conductive composite carbon fiber cloth |
| CN105482176A (en) * | 2016-01-28 | 2016-04-13 | 深圳市慧瑞电子材料有限公司 | Conductive rubber material for flexible sensor and preparation method and application of conductive rubber material |
| CN105841601A (en) * | 2016-04-26 | 2016-08-10 | 清华大学 | Flexible wearable strain sensor based on fabrics and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《有机高分子树脂碳化过程中结构基团的变化》;汪树军;《石油大学学报(自然科学版)》;20010730;全文 |
| 《树脂基碳纤维应变传感一体化技术》;陈子鹏等;《华中科技大学学报（自然科学版）》;20150228;全文 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108827136A (en) | 2018-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108827136B (en) | A method of flexible strain transducer is prepared using waste and old thermosetting resin | |
| Wu et al. | Transparent polymeric strain sensors for monitoring vital signs and beyond | |
| CN109883583A (en) | A kind of elastomer thin film and preparation method thereof and the pliable pressure sensor comprising the elastomer thin film | |
| Nag et al. | Tactile sensing from laser-ablated metallized PET films | |
| CN108384327A (en) | It stretches and causes the conductive electrically conductive ink based on liquid metal particle, preparation method and application | |
| CN106840478B (en) | A kind of preparation method of the pliable pressure sensor based on regenerated collagen film | |
| KR101554543B1 (en) | A pressure sensor | |
| CN110146200A (en) | The preparation method and strain gauge of liquid metal matrix flexible structure unit | |
| Xu et al. | Piezoresistive sensors based on rGO 3D microarchitecture: coupled properties tuning in local/integral deformation | |
| CN109489875A (en) | A kind of pliable pressure sensor and its manufacturing method with alternating expression micro-structure | |
| CN201425478Y (en) | Instrument for measuring deformation of textile | |
| CN108553089B (en) | Method for preparing skin sensor based on sacrificial layer process and prepared product | |
| CN104325652A (en) | Polyurethane composite material doped by nickel-titanium memory alloy and carbon nanotube and preparation method thereof | |
| Wang et al. | A superhydrophobic hydrogel for self‐healing and robust strain sensor with liquid impalement resistance | |
| Huang et al. | A unique, flexible, and porous pressure sensor with enhanced sensitivity and durability by synergy of surface microstructure and supercritical fluid foaming | |
| CN111766001A (en) | Micro-wrinkle gold thin film flexible crack sensor with controllable scale | |
| CN101571465A (en) | Detection device for tension recoverability of textile | |
| Liu et al. | Superstretchable and Linear-Response Strain Sensors With Carbon Nanotubes Ultrasonically Assembled on Silicone Rubber Film | |
| Kamat et al. | 3D printed graphene-coated flexible lattice as piezoresistive pressure sensor | |
| CN109700440A (en) | Flexible wearable sensor and its corresponding wearable device and preparation method | |
| CN206303913U (en) | Vltrasonic device and the device of generation mechanical oscillation | |
| CN115593133A (en) | Transfer printing technology-based mobile phone middle frame 5G antenna printing process | |
| CN114166383B (en) | Flexible pressure sensor sensing element and preparation method and application thereof | |
| CN111087644B (en) | Multifunctional super-hydrophobic conductive rubber composite material and preparation method thereof | |
| Dyatkin | E-skin sensor self-heals and can be recycled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |