CN115323781B - Preparation method of single yarn temperature sensor - Google Patents
Preparation method of single yarn temperature sensor Download PDFInfo
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- CN115323781B CN115323781B CN202210720261.5A CN202210720261A CN115323781B CN 115323781 B CN115323781 B CN 115323781B CN 202210720261 A CN202210720261 A CN 202210720261A CN 115323781 B CN115323781 B CN 115323781B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000005530 etching Methods 0.000 claims abstract description 18
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 10
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012188 paraffin wax Substances 0.000 claims abstract description 8
- 239000000178 monomer Substances 0.000 claims abstract description 7
- -1 acrylic ester Chemical class 0.000 claims abstract description 6
- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims abstract description 4
- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 claims abstract description 4
- 239000003999 initiator Substances 0.000 claims abstract description 4
- 238000001291 vacuum drying Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 239000011231 conductive filler Substances 0.000 claims description 8
- 229910021389 graphene Inorganic materials 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical group C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 6
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 6
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- JTHZUSWLNCPZLX-UHFFFAOYSA-N 6-fluoro-3-methyl-2h-indazole Chemical compound FC1=CC=C2C(C)=NNC2=C1 JTHZUSWLNCPZLX-UHFFFAOYSA-N 0.000 claims description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002082 metal nanoparticle Substances 0.000 claims description 3
- 239000002070 nanowire Substances 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 229940065472 octyl acrylate Drugs 0.000 claims description 3
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002243 precursor Substances 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- 150000003624 transition metals Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000035935 pregnancy Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 208000002330 Congenital Heart Defects Diseases 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 208000005107 Premature Birth Diseases 0.000 description 1
- 206010036590 Premature baby Diseases 0.000 description 1
- 206010000210 abortion Diseases 0.000 description 1
- 231100000176 abortion Toxicity 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 208000028831 congenital heart disease Diseases 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/28—Halides of elements of Groups 8, 9, 10 or 18 of the Periodic System
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/16—Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/20—Clinical contact thermometers for use with humans or animals
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
Abstract
The invention relates to the field of yarn temperature sensors, and discloses a preparation method of a single yarn temperature sensor, which comprises the following steps: the first step: etching on a carrier, packaging and protecting a part which does not need to be etched by adopting solid paraffin, etching insulating channels with different widths on the carrier by using a solution, and dissolving paraffin by adopting chloroform after etching is finished, and cleaning; and a second step of: the preparation method comprises the steps of taking acrylic ester as a monomer, taking AIBN as an initiator, polymerizing at a polymerization temperature of 75 ℃ for 12 hours, dropwise adding a polymerization solution into ethanol after polymerization, and carrying out vacuum drying on an obtained thermosensitive polymer to obtain a solid powdery thermosensitive polymer. The single yarn temperature sensor prepared by the invention has the advantages of extremely high sensitivity, quick response time, good cyclical stability, bending resistance, good resolution and capability of monitoring slight fluctuation of 0.1 ℃.
Description
Technical Field
The invention relates to the technical field of yarn temperature sensors, in particular to a preparation method of a single yarn temperature sensor.
Background
Changes in human body temperature can reflect a large amount of physiological information about the metabolic or pathological state of the human body. Meanwhile, abrupt changes in ambient temperature or long-term heat exposure pose a significant health threat to people, particularly to the population of pregnant women, newborns, and the elderly. For example, exposure to high temperatures during pregnancy may increase the risk of abortions, premature birth, or congenital heart defects. Meanwhile, there may be a case where the lower limbs are cold during pregnancy due to a decrease in blood supply and physical activity during pregnancy. Therefore, continuous and accurate monitoring of temperature changes in human bodies and atmospheres can provide advice for future complex health diagnostics and protection of high risk populations.
The wearable electronic textile product has the advantages of flexibility, comfort, portability and ventilation, and can continuously and real-time monitor the change of human physiological signals. The temperature sensor based on the single fiber/thread/yarn can be directly used for weaving and integrating electronic fabrics, however, the wearable temperature sensor based on the single yarn is less in research and is difficult to meet the requirements of high sensitivity and resolution, and therefore, the invention provides a preparation method of the temperature sensor based on the single yarn.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a preparation method of a single yarn temperature sensor, which aims to solve the problems.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions:
the preparation method of the single yarn temperature sensor comprises the following steps:
the first step: etching on a carrier, packaging and protecting a part which does not need to be etched by adopting solid paraffin, etching insulating channels with different widths on the carrier by using a solution, and dissolving paraffin by adopting chloroform after etching is finished, and cleaning;
and a second step of: the preparation method comprises the steps of (1) taking acrylic ester as a monomer, taking AIBN as an initiator, and taking the polymerization temperature at 75 ℃ for 12 hours, dropwise adding a polymerization solution into ethanol after polymerization, and carrying out vacuum drying on an obtained thermosensitive polymer to obtain a solid powdery thermosensitive polymer;
and a third step of: mixing solid powdery temperature-sensitive polymer with conductive filler, and then mixing by using a solvent to obtain temperature-sensitive slurry;
fourth step: coating the temperature-sensitive slurry on the etching channel of the single yarn, and naturally airing;
fifth step: and packaging by adopting PDMS, coating a PDMS precursor solution on the temperature-sensitive channel, immersing the temperature-sensitive channel in 180-degree silicone oil for 5s, and rapidly curing to obtain the single yarn temperature sensor.
Preferably, in the first step, the carrier is silver-plated nylon yarn, and FeCl3 solution with the concentration of 0.1mol/L is used as the solution.
Preferably, the width of the insulation channel in the first step is 0.1mm, 0.2mm, 0.5mm, 1mm, 2mm, and 4mm, respectively.
Preferably, the acrylic ester in the second step is one or two of polymerization of butyl acrylate, octyl acrylate, dodecyl acrylate and stearyl acrylate, wherein the ratio of the two copolymerization is 0% to 100%.
Preferably, the conductive filler in the third step is graphene, carbon nanotubes, transition metal carbon/nitride, conductive metal nanoparticles or nanowires, and the solvent is tetrahydrofuran.
Preferably, the proportion of the conductive filler and the temperature-sensitive polymer in the third step is 20-50wt%.
(III) beneficial effects
Compared with the prior art, the preparation method of the root yarn temperature sensor provided by the invention has the following beneficial effects:
1. the preparation method of the single yarn temperature sensor has the advantages of extremely high sensitivity, quick response time, good cyclical stability, bending resistance, good resolution and capability of monitoring slight fluctuation of 0.1 ℃.
2. According to the preparation method of the single yarn temperature sensor, the single yarn temperature sensor can realize the detection of temperatures in different temperature intervals by changing the proportion and the types of monomers.
3. According to the preparation method of the single yarn temperature sensor, the temperature sensor is designed by adopting a single yarn, so that the weaving and integration of the sensor and the fabric can be easily realized.
Drawings
Fig. 1 is a schematic diagram of temperature sensing curves with different graphene ratios according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sensing curve of a temperature sensor for channels with different etching widths according to an embodiment of the present invention;
FIG. 3 is a schematic view of a cycling stabilization of a temperature sensor according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a temperature sensor scanning in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of an embodiment of the present invention with a temperature sensor look and weave onto a fabric.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-5, the method for manufacturing a single yarn temperature sensor provided in this embodiment includes the following steps:
1. the silver-plated nylon yarn is used as a carrier, feCl3 solution with the concentration of 0.1mol/L is used for etching insulating channels with different widths (0.1, 0.2,0.5,1,2 and 4mm widths) on the silver-plated nylon yarn, the parts which do not need to be etched are packaged and protected by adopting solid paraffin, and after the etching is finished, the paraffin is dissolved by adopting chloroform and is cleaned.
2. Preparing a temperature-sensitive polymer: the acrylic ester is adopted as a monomer, and comprises butyl acrylate, octyl acrylate, dodecyl acrylate, stearyl acrylate and the like, AIBN is adopted as an initiator in the polymerization process, the polymerization temperature is 75 ℃, and the monomer is polymerized or copolymerized by one or two of the acrylic esters, wherein the ratio of the two monomers is 0% to 100%. And (3) dropwise adding the polymerization solution into ethanol after the polymerization is completed for 12 hours, and carrying out vacuum drying on the obtained temperature-sensitive polymer to obtain solid powder.
3. Mixing the polymer or copolymer with graphene, carbon nano tube, transition metal carbon/nitride, conductive metal nano particles or nano wires, and adopting tetrahydrofuran as a solvent to obtain the temperature-sensitive slurry, wherein the proportion of the conductive filler and the temperature-sensitive polymer is adjustable, and the range is 20-50wt%.
4. The temperature-sensitive slurry is coated on the etching channel of the single yarn, and the temperature-sensitive slurry is naturally dried, so that the thickness of the coating can be changed to change the initial conductivity.
5. And packaging by adopting PDMS, coating a PDMS precursor solution on the temperature-sensitive channel, immersing the temperature-sensitive channel in 180-DEG silicone oil for 5s, and rapidly curing. Thereby obtaining a single yarn temperature sensor.
Referring to fig. 1, in the temperature sensing curves of different graphene ratios, when the conductive filler is graphene, the lower the graphene ratio is, the greater the resistance is.
Referring to fig. 2, the sensing curves of temperature sensors of channels with different etching widths, it is known that the wider the etching width is, the larger the resistance is.
Referring to fig. 3, it can be seen that the stability and the circulation of the solution are stable, and the circulation is always performed between three degrees celsius and thirty-five and twenty-five degrees celsius.
The single yarn temperature sensor prepared by the embodiment of the invention has the advantages of extremely high sensitivity, quick response time, good cycling stability, bending resistance, good resolution and capability of monitoring slight fluctuation of 0.1 ℃.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The preparation method of the single yarn temperature sensor is characterized by comprising the following steps of:
the first step: etching on a silver-plated nylon yarn carrier; the part which does not need etching adopts solid paraffin for encapsulation protection, and FeCl with concentration of 0.1mol/L is used 3 Etching insulating channels with the widths of 0.1mm, 0.2mm, 0.5mm, 1mm, 2mm and 4mm on the carrier by the solution, and dissolving paraffin by using chloroform after etching is finished, and cleaning;
and a second step of: the preparation method comprises the steps of (1) taking acrylic ester as a monomer, taking AIBN as an initiator, and taking the polymerization temperature at 75 ℃ for 12 hours, dropwise adding a polymerization solution into ethanol after polymerization, and carrying out vacuum drying on an obtained thermosensitive polymer to obtain a solid powdery thermosensitive polymer; the acrylic ester is one or two of butyl acrylate, octyl acrylate, dodecyl acrylate and stearyl acrylate which are polymerized or copolymerized;
and a third step of: mixing solid powdery thermosensitive polymer with conductive filler, wherein the proportion of the conductive filler to the thermosensitive polymer is 20-50wt%, and then mixing by using a solvent to obtain thermosensitive slurry;
fourth step: coating the temperature-sensitive slurry on the etching channel of the single yarn, and naturally airing;
fifth step: and packaging by adopting PDMS, coating a PDMS precursor solution on the temperature-sensitive channel, immersing the temperature-sensitive channel in 180-DEG silicone oil for 5s, and rapidly curing to obtain the single yarn temperature sensor.
2. The method of manufacturing a single yarn temperature sensor as in claim 1, wherein: in the third step, the conductive filler is graphene, carbon nano tube, transition metal carbon/nitride, conductive metal nano particles or nano wires, and the solvent is tetrahydrofuran.
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| CN110607683A (en) * | 2019-09-29 | 2019-12-24 | 中国科学院苏州纳米技术与纳米仿生研究所 | Temperature response fiber and preparation method thereof |
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2022
- 2022-06-23 CN CN202210720261.5A patent/CN115323781B/en active Active
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| CN104086085A (en) * | 2014-06-30 | 2014-10-08 | 常州大学 | Method for etching regular micro-well array on surface of glass slide |
| CN104733565A (en) * | 2015-03-24 | 2015-06-24 | 中建材浚鑫科技股份有限公司 | Etching method applied to crystalline silicon wet etching controlled edge |
| CN105039778A (en) * | 2015-07-10 | 2015-11-11 | 中国矿业大学(北京) | Powder metallurgy brass-based etching material with anti-paraffin-precipitation function and preparation method thereof |
| CN110607683A (en) * | 2019-09-29 | 2019-12-24 | 中国科学院苏州纳米技术与纳米仿生研究所 | Temperature response fiber and preparation method thereof |
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