CN115726193A - Preparation method of stretchable and pressable luminescent multi-axis flexible luminescent fiber - Google Patents
Preparation method of stretchable and pressable luminescent multi-axis flexible luminescent fiber Download PDFInfo
- Publication number
- CN115726193A CN115726193A CN202211319291.1A CN202211319291A CN115726193A CN 115726193 A CN115726193 A CN 115726193A CN 202211319291 A CN202211319291 A CN 202211319291A CN 115726193 A CN115726193 A CN 115726193A
- Authority
- CN
- China
- Prior art keywords
- fiber
- luminescent
- powder
- pdms
- zns
- 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.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 308
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 119
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 117
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 117
- 239000010410 layer Substances 0.000 claims abstract description 72
- 238000001035 drying Methods 0.000 claims abstract description 58
- 239000012792 core layer Substances 0.000 claims abstract description 52
- 239000002245 particle Substances 0.000 claims abstract description 52
- 239000011159 matrix material Substances 0.000 claims abstract description 49
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 38
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 38
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 34
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000002791 soaking Methods 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 210000001124 body fluid Anatomy 0.000 claims abstract description 12
- 239000010839 body fluid Substances 0.000 claims abstract description 12
- -1 Polydimethylsiloxane Polymers 0.000 claims abstract description 11
- 238000001238 wet grinding Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 91
- 238000003756 stirring Methods 0.000 claims description 32
- 238000004020 luminiscence type Methods 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 21
- 238000003490 calendering Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 238000007711 solidification Methods 0.000 claims description 11
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 8
- 238000005470 impregnation Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 39
- 238000007598 dipping method Methods 0.000 description 25
- 239000012530 fluid Substances 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 12
- 238000005166 mechanoluminescence Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 5
- 239000002105 nanoparticle Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Abstract
The invention discloses a preparation method of a stretchable and pressable luminescent multi-axis flexible luminescent fiber, which comprises the following steps: wet grinding ZnS, namely Cu powder and absolute ethyl alcohol, and then drying; mixing a Polydimethylsiloxane (PDMS) main agent and an auxiliary agent in proportion to obtain a fiber-based body fluid; curing the fiber matrix liquid to obtain PDMS fibers, and impregnating the cured PDMS fibers again and adhering polymethyl methacrylate particles to obtain core layer fibers; adding isopropanol, znS, cu powder and Al into the fiber matrix liquid 2 O 3 A powder configured to press the light emitting layer solution, impregnated and cured to obtain a fiber A capable of exciting green light upon pressing; adding pretreated ZnS, cu powder and polytetrafluoroethylene powder into a fiber matrix solution to prepare a stretched light-emitting layer solution, soaking the fiber A into the stretched light-emitting layer solution, and curing to obtain the multi-axis flexible light-emitting fiber capable of stretching light-emitting and pressing light-emitting.
Description
Technical Field
The invention relates to the field of mechanical stress luminescent fibers, in particular to a preparation method of a stretchable and pressable luminescent multiaxial flexible luminescent fiber.
Background
The method of converting mechanical energy into light emission is promising in the fabrication and application of displays and stress sensors, and the traditional strain-induced luminescence, also known as Mechanoluminescence (ML), is the most common method of achieving this energy conversion, however, this mechanism has several limitations that affect its practical application: first, high strength ML materials are typically inorganic materials such as quartz, rare earth ion doped aluminates, and zinc sulfide doped metal particles, the large young's modulus of the material itself leading to high threshold pressures on the scale of several MPa in order to produce ML; second, ML is usually accompanied by material damage and a decay in luminous intensity, which affects the reproducibility of ML, but since mechanical force luminescence acts in the human body to provide real-time personal communication and portability, ML fibers that are capable of sensing and responding to environmental changes are attracting attention in the sense that luminescent textiles are the preferred personal safety and attractive signals for high visibility devices, being mutual identification or new forms of communication. However, most of the light emitting textiles on the market today, including wearable optical fibers and optical fiber shaped light emitting devices, are less numerous and mostly rely on power supply for their light emission. The functionality of the film of the light-emitting device manufactured at present is richer than that of the fiber, but the fitness and the aesthetic property of the film light-emitting device acting on the fabric are poor.
In patent document CN108093535B, a luminescent active layer with tensile properties can be obtained by mixing luminescent powder with an elastomer, but the electroluminescent powder doped with zinc sulfide is excited by alternating current, so that power supply lead elements are added, and comfort is reduced. In patent document CN110592711A, a luminescent fiber prepared by using an Aggregation Induced Emission (AIE) material can be directly woven, has high elasticity but is too soft to provide a function of not providing light emission by pressing at the same time.
In conclusion, in the fibers emitting light by current mechanical force, the soft fibers are difficult to emit light when being stretched, and the hard fibers cannot emit light when being stretched.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a preparation method of a multi-axis flexible luminous fiber capable of stretching and pressing to emit light.
In order to achieve the purpose, the invention adopts the technical scheme that: a preparation method of a stretchable and pressable luminescent multi-axis flexible luminescent fiber is characterized by comprising the following steps: s1: powder pretreatment: wet grinding ZnS, cu powder and absolute ethyl alcohol and drying; s2: mixing a Polydimethylsiloxane (PDMS) main agent and an auxiliary agent in proportion to prepare a fiber-based body fluid; s3: curing the fiber matrix liquid to obtain PDMS fibers, soaking the cured PDMS fibers in the fiber matrix liquid again, adhering polymethyl methacrylate (PMMA) particles, and curing to obtain core layer fibers; s4: on-fiberAdding isopropanol into the vitamin base solution, and adding pretreated ZnS, cu powder and Al 2 O 3 Powder, which is prepared into a pressing luminescent layer solution, and the core layer fiber is soaked and then fished out for curing to obtain a fiber A capable of exciting green light during pressing; s5: adding pretreated ZnS: cu powder and Polytetrafluoroethylene (PTFE) powder into a fiber matrix solution to prepare a stretched luminescent layer solution, soaking the fiber A into the stretched luminescent layer solution, and fishing out and solidifying to obtain the multi-axis flexible luminescent fiber capable of stretching luminescence and pressing luminescence.
In a preferred embodiment of the present invention, in step S1, znS: cu powder having a particle size of 20 to 35 μm is used.
In a preferred embodiment of the present invention, in step S2, the ratio of the PDMS base material to the additive is 10.
In a preferred embodiment of the present invention, in step S2, the mixing conditions are: and (3) violently stirring the main agent and the auxiliary agent for 30min at normal temperature, fully and uniformly mixing, and standing for defoaming for later use.
In a preferred embodiment of the present invention, in step S3, PMMA particles have a size of 100-500 μm.
In a preferred embodiment of the present invention, in step S3, the processing conditions are: injecting foamless PDMS solution into a mould, drying to obtain PDMS fiber, immersing the PDMS fiber into the fiber matrix liquid again, fishing out and drying until the PDMS fiber is in a non-flowing micro-solidification state, uniformly attaching PMMA particles on the surface of the PDMS fiber, and curing to obtain the core layer fiber.
In a preferred embodiment of the present invention, in step S4, the content of isopropyl alcohol is 20wt% to 70wt%, the content of ZnS: cu powder is 50wt% to 90wt%, al 2 O 3 The content of the powder is 1wt% -9wt%.
In a preferred embodiment of the present invention, in step S4, the processing conditions are: adding 20-70 wt% of isopropanol into the fiber matrix solution, violently stirring at normal temperature to fully and uniformly mix the isopropanol, and then mixing the pretreated ZnS and Cu powder according to the content of 50-90 wt% and the Al content of 1-9 wt% 2 O 3 Adding the powder into the mixed solution, and vigorously stirring at room temperature to obtain a mixtureThe optical layer is impregnated with the solution.
In a preferred embodiment of the present invention, in step S5, the content of ZnS: cu powder is 50wt% to 90wt% and the content of PTFE powder is 10wt% to 30wt%.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) The invention uses PDMS as the fiber matrix, the solution preparation is simple, the dipping process is simple to operate when the fiber is prepared, the parameters are easy to control, and the continuous production can be realized.
(2) Compared with the existing other fibers which emit light by mechanical force, the fiber provided by the invention can realize bidirectional synergistic light emission and has hydrophobic property, znS: cu powder is easy to absorb moisture and agglomerate in air to influence the light emitting property of the fiber, and PDMS has hydrophobic property to protect the stability and the long-term light emitting property of the fiber.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a SEM image and a light-emitting object image of a first embodiment of the present invention;
FIG. 2 shows Al of example two of the present invention 2 O 3 Adding a content of real object comparison graph of luminous intensity;
FIG. 3 is a real comparison graph of luminescence intensity with different ZnS: cu particle sizes added in example three of the present invention;
FIG. 4 is a real comparison graph of luminescence intensity of different PTFE additive contents in example four of the present invention;
FIG. 5 is a schematic flow chart of the preparation of the preferred embodiment of the present invention.
Detailed Description
Reference throughout this specification to "one embodiment," "an embodiment," or "other embodiments" means that a particular feature or characteristic described in connection with the embodiment is included in at least some embodiments, but not necessarily all embodiments, of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
A preparation method of a stretchable and pressable luminescent multi-axis flexible luminescent fiber comprises the following steps:
s1: pretreatment of ZnS and Cu powder: wet grinding ZnS: cu powder with the particle size of 20-35 μm and a certain amount of absolute ethyl alcohol in a mortar, and drying the powder in an oven for later use.
In a preferred embodiment, the process conditions are: the particle size of ZnS: cu powder is 25 μm, and the ZnS: cu powder and absolute ethyl alcohol are ground at a ratio of 1.
S2: configuration of fiber-based body fluids: adding a Polydimethylsiloxane (PDMS) main agent and an auxiliary agent into a beaker according to the proportion of 10.
In a preferred embodiment, under the condition of normal temperature, the main agent and the auxiliary agent are mixed according to the proportion of 10.
S3: preparing core layer fiber: and (3) injecting the fiber matrix liquid obtained in the step (S2) into a polytetrafluoroethylene tubular fiber mold with the diameter of 0.05mm, curing at high temperature, demolding after curing is finished to obtain PDMS fibers, soaking the PDMS fibers in the fiber matrix liquid again, drying until the PDMS fibers are in a non-flowing micro-solidification state, taking out, uniformly adhering polymethyl methacrylate (PMMA) particles to the whole fibers, and curing to obtain the core layer fibers.
Preferably, the PMMA particles are 100-500 μm in size.
In a preferred embodiment, the core fiber is prepared by the steps of: injecting the foamless PDMS solution into the fiber mold by using the injector for the fiber matrix fluid obtained in the step S2, putting the fiber mold into a drying oven at 90 ℃ for drying to obtain PDMS fibers, immersing the cured PDMS fibers into the fiber matrix fluid again, taking out the PDMS fibers, putting the PDMS fibers into the drying oven at 90 ℃ for drying until the PDMS fibers are in a non-flowing micro-solidification state, putting the PDMS fibers into a sealing bag filled with PMMA particles, and uniformly attaching the PMMA particles to the surfaces of the fibers to obtain the core layer fibers.
S4: preparation of a pressed light-emitting layer: adding a certain amount of isopropanol into the fiber matrix liquid to dilute the fiber matrix liquid, and then adding pretreated ZnS-Cu powder and Al in a certain proportion 2 O 3 A powder configured to press the light emitting layer solution. The core layer fiber is dipped into the solution, and is fished out to be solidified so that the fiber can excite green light when being pressed.
Preferably, the content of isopropanol is 20wt% to 70wt%, the content of ZnS: cu powder is 50wt% to 90wt%, and the content of Al2O3 powder is 1wt% to 9wt%;
in one embodiment, the step of preparing the light emitting layer includes: adding 20-70 wt% of isopropanol into the fiber matrix solution, and vigorously stirring for 30min at normal temperature to mix the mixture uniformly. Then the ZnS-Cu powder pretreated in the step S1 is added according to the content of 50-90 wt% and the Al content of 1-9 wt% 2 O 3 Adding the powder into the solution, and stirring vigorously at room temperature for 30min to obtain a calendaring layer dipping solution. And finally, soaking the core layer fiber obtained in the step S3 into a calendaring layer solution, taking out the core layer fiber, and putting the core layer fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multiaxial luminescent fiber capable of realizing press luminescence.
S5: preparing a stretched luminescent layer: adding pretreated ZnS: cu powder and Polytetrafluoroethylene (PTFE) powder in a certain ratio into a fiber matrix solution to prepare a stretched light-emitting layer solution, soaking the fiber obtained in the step S4 into the solution, taking out and solidifying the fiber to enable the fiber to emit green light during stretching, and obtaining the stretchable and pressable light-emitting multi-axis flexible light-emitting fiber.
Preferably, the content of ZnS: cu powder is 50wt% to 90wt%, and the content of PTFE powder is 10wt% to 30wt%.
In one embodiment, the step of preparing the stretched light-emitting layer comprises: adding the pretreated ZnS: cu powder with the content of 50-90 wt% and the PTFE powder with the content of 10-30 wt% into the prepared fiber matrix liquid, and violently stirring for 30min at normal temperature to fully and uniformly mix the ZnS: cu powder and the PTFE powder to obtain a stretching light-emitting layer dipping solution. And finally, dipping the flexible multi-axis luminescent fiber which is obtained in the step S4 and emits light by pressing into the luminescent solution of the stretching layer, taking out the flexible multi-axis luminescent fiber, and putting the flexible multi-axis luminescent fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multi-axis luminescent fiber which can be stretched and emit light by pressing.
In the following examples, SEM and EDS were used to demonstrate the multiaxial structure of the fibers and the distribution of the elements; a light spot photo of a ball falling method is used for visually representing the luminous intensity under the pressing stress; the emission spectra at the compressive stress and the tensile stress were measured by a spectrometer.
Example 1
1) Pretreatment of ZnS and Cu powder: under normal temperature conditions, znS: cu powder with a particle size of 25 μm and absolute ethyl alcohol were ground at a ratio of 1.
2) Configuration of fiber-based body fluids: under the condition of normal temperature, mixing the PDMS main agent and the auxiliary agent according to the proportion of 10.
3) Preparing core layer fiber: injecting the fiber base fluid obtained in the step 2) into a fiber mold by using an injector to obtain a non-foam PDMS solution, and drying in an oven at 90 ℃ to obtain the PDMS fiber. And soaking the cured PDMS fiber into the fiber matrix fluid again, taking out the PDMS fiber, putting the PDMS fiber into a 90 ℃ oven, drying the PDMS fiber until the PDMS fiber is in a non-flowing micro-solidification state, putting the PDMS fiber into a sealed bag filled with PMMA particles, and uniformly attaching the PMMA particles to the surface of the PDMS fiber to obtain the core layer fiber.
4) Preparation of the pressed luminescent layer: adding 25wt% of isopropanol into the prepared fiber matrix solution in the step 2), and violently stirring for 30min at normal temperature to fully and uniformly mix. Then the ZnS-Cu powder pretreated in the step 1) is mixed according to the content of 70wt percent and the Al content of 7wt percent 2 O 3 Adding the powder into the solution, and vigorously stirring for 30min at normal temperature to obtain a calendered layer impregnation solution. And finally, soaking the core layer fiber obtained in the step 3) into a calendaring layer solution, taking out the core layer fiber, and putting the core layer fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multiaxial luminescent fiber capable of realizing press luminescence.
5) Preparing a stretched luminescent layer: adding the ZnS-Cu powder pretreated in the step 1) into the fiber matrix solution prepared in the step 2) according to the content of 80wt% and the PTFE powder of 10wt%, and vigorously stirring for 30min at normal temperature to fully and uniformly mix the ZnS-Cu powder and the PTFE powder to obtain a stretched light-emitting layer dipping solution. And finally, dipping the flexible multi-axis luminescent fiber which is obtained in the step 4) and emits light by pressing into the luminescent solution of the stretching layer, taking out the flexible multi-axis luminescent fiber, and putting the flexible multi-axis luminescent fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multi-axis luminescent fiber which can be stretched and emit light by pressing.
Comparative example 1
Comparative example 1 differs from example 1 in that: whether PMMA particles are adhered to the outer layer of the core layer fiber is specifically as follows:
1) Pretreatment of ZnS and Cu powder: under normal temperature conditions, znS: cu powder with a particle size of 25 μm and absolute ethyl alcohol were ground at a ratio of 1.
2) Preparation of fiber-based body fluid: under the condition of normal temperature, mixing a main agent of PDMS and an auxiliary agent according to the proportion of 10.
Then, the product is processed
3) Preparing core layer fiber: injecting the fiber base fluid obtained in the step 2) into a fiber mold through an injector to obtain a non-foam PDMS solution, and drying the fiber base fluid in a drying oven at 90 ℃ to obtain PDMS fiber, namely the required core layer fiber.
4) Preparation of a pressed light-emitting layer: adding 25wt% of isopropanol into the prepared fiber matrix liquid in the step 2), and vigorously stirring for 30min at normal temperature to fully and uniformly mix. Then the ZnS-Cu powder pretreated in the step 1) is mixed according to the content of 70wt percent and the Al content of 7wt percent 2 O 3 The powder is added to the solution and,and vigorously stirring for 30min at normal temperature to obtain a calendered layer impregnation solution. And finally, dipping the core layer fiber obtained in the step 3) into a calendaring layer solution, fishing out, and drying in a 90 ℃ drying oven for 30min to obtain the flexible multiaxial luminescent fiber capable of press luminescence.
5) Preparing a stretched light-emitting layer: adding the ZnS-Cu powder pretreated in the step 1) into the fiber matrix solution prepared in the step 2) according to the content of 80wt% and the PTFE powder of 10wt%, and vigorously stirring for 30min at normal temperature to fully and uniformly mix the ZnS-Cu powder and the PTFE powder to obtain a stretched light-emitting layer dipping solution. And finally, dipping the flexible multiaxial luminescent fiber capable of pressing luminescence obtained in the step 4) into a stretching layer luminescent solution, taking out, and then putting into a 90 ℃ oven for drying for 30min to obtain the flexible multiaxial luminescent fiber capable of stretching and pressing luminescence.
As can be seen from fig. 1, the multiaxial structure of the fibers is evident from the SEM image in example 1 in comparison to comparative example 1. (b) The clear degree of light spots in the falling ball method can obviously show that the light spots added with PMMA particles are clearer, because PMMA hard particles can provide a reaction force when the fiber is integrally stressed, and the core layer without PMMA particles is PDMS elastic fiber and cannot provide the reaction force, the luminous intensity is weak. It is also evident from the light spot pattern of the fiber without PMMA particles added in (c) that the addition of PMMA particles provides better luminous intensity.
Example 2
1) Pretreatment of ZnS and Cu powder: under normal temperature conditions, znS: cu powder with a particle size of 25 μm and absolute ethyl alcohol are ground according to a ratio of 1.
2) Preparation of fiber-based body fluid: under the condition of normal temperature, mixing the PDMS main agent and the auxiliary agent according to the proportion of 10.
3) Preparing core layer fiber: injecting the fiber base fluid obtained in the step 2) into a fiber mold by using an injector to obtain a foamless PDMS solution, and drying the foamless PDMS solution in a drying oven at 90 ℃ to obtain the PDMS fiber. And soaking the cured PDMS fiber into the fiber matrix fluid again, taking out the PDMS fiber, putting the PDMS fiber into a 90 ℃ drying oven, drying the PDMS fiber until the PDMS fiber is in a non-flowing micro-solidification state, putting the PDMS fiber into a sealed bag filled with PMMA particles, and uniformly attaching the PMMA particles to the surface of the fiber to obtain the core layer fiber.
4) Preparation of the pressed luminescent layer: adding 25wt% of isopropanol into the prepared fiber matrix liquid in the step 2), and vigorously stirring for 30min at normal temperature to fully and uniformly mix. Then the ZnS-Cu powder pretreated in the step 1) is mixed according to the content of 70wt percent and the Al content of 7wt percent 2 O 3 Adding the powder into the solution, and stirring vigorously at room temperature for 30min to obtain a calendaring layer dipping solution. And finally, soaking the core layer fiber obtained in the step 3) into a calendaring layer solution, taking out the core layer fiber, and putting the core layer fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multiaxial luminescent fiber capable of realizing press luminescence.
5) Preparing a stretched light-emitting layer: adding the ZnS: cu powder pretreated in the step 1) into the fiber matrix solution prepared in the step 2) according to the content of 80wt% and 10wt% of PTFE powder, and violently stirring for 30min at normal temperature to fully and uniformly mix the ZnS: cu powder and the PTFE powder to obtain a stretching luminescent layer dipping solution. And finally, dipping the flexible multi-axis luminescent fiber which is obtained in the step 4) and emits light by pressing into the luminescent solution of the stretching layer, taking out the flexible multi-axis luminescent fiber, and putting the flexible multi-axis luminescent fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multi-axis luminescent fiber which can be stretched and emit light by pressing.
Comparative example 2
Comparative example 2 differs from example 2 in that: al in the press-coating layer 2 O 3 The different addition contents are as follows:
1) Pretreatment of ZnS and Cu powder: under normal temperature conditions, znS: cu powder with a particle size of 25 μm and absolute ethyl alcohol are ground according to a ratio of 1.
2) Configuration of fiber-based body fluids: under the condition of normal temperature, mixing a main agent of PDMS and an auxiliary agent according to the proportion of 10.
Then, the product is processed
3) Preparing core layer fiber: injecting the fiber base fluid obtained in the step 2) into a fiber mold by using an injector to obtain a foamless PDMS solution, and drying the foamless PDMS solution in a drying oven at 90 ℃ to obtain the PDMS fiber. And soaking the cured PDMS fiber into the fiber matrix fluid again, taking out the PDMS fiber, putting the PDMS fiber into a 90 ℃ oven, drying the PDMS fiber until the PDMS fiber is in a non-flowing micro-solidification state, putting the PDMS fiber into a sealed bag filled with PMMA particles, and uniformly attaching the PMMA particles to the surface of the PDMS fiber to obtain the core layer fiber.
4) Preparation of the pressed luminescent layer: adding 25wt% of isopropanol into the prepared fiber matrix liquid in the step 2), and vigorously stirring for 30min at normal temperature to fully and uniformly mix. Then mixing the ZnS-Cu powder pretreated in the step 1) according to the content of 70wt% and Al of 2wt%, 5wt% and 9wt% 2 O 3 Adding the powder into the solution, and stirring vigorously at room temperature for 30min to obtain a calendaring layer dipping solution. And finally, soaking the core layer fiber obtained in the step 3) into a calendaring layer solution, taking out the core layer fiber, and putting the core layer fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multiaxial luminescent fiber capable of realizing press luminescence.
5) Preparing a stretched light-emitting layer: adding the ZnS: cu powder pretreated in the step 1) into the fiber matrix solution prepared in the step 2) according to the content of 80wt% and 10wt% of PTFE powder, and violently stirring for 30min at normal temperature to fully and uniformly mix the ZnS: cu powder and the PTFE powder to obtain a stretching luminescent layer dipping solution. And finally, dipping the flexible multi-axis luminescent fiber which is obtained in the step 4) and emits light by pressing into the luminescent solution of the stretching layer, taking out the flexible multi-axis luminescent fiber, and putting the flexible multi-axis luminescent fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multi-axis luminescent fiber which can be stretched and emit light by pressing.
As can be seen from FIG. 2, in example 2, as compared with comparative example 2, (a) is Al 2 O 3 Adding a spot pattern with the content of 2%; (b) Is Al 2 O 3 Adding a spot pattern with the content of 5%; (c) Is Al 2 O 3 Adding a facula graph with the content of 7%; (d) Is Al 2 O 3 The spot pattern was measured at an additive content of 9%. It is known that the maximum ML strength is found at a content of 7wt% for each sample group having the same particle diameter. This is attributable to the addition of Al 2 O 3 Nano meterThe particles change the ML strength, decreasing the elastic modulus of the PDMS matrix with the addition of more nanoparticles.
Example 3
1) Pretreatment of ZnS and Cu powder: under normal temperature conditions, znS: cu powder with the particle size of 20 μm and absolute ethyl alcohol are ground according to the proportion of 1.
2) Configuration of fiber-based body fluids: under the condition of normal temperature, mixing a main agent of PDMS and an auxiliary agent according to the proportion of 10.
Then
3) Preparing core layer fiber: injecting the fiber base fluid obtained in the step 2) into a fiber mold by using an injector to obtain a foamless PDMS solution, and drying the foamless PDMS solution in a drying oven at 90 ℃ to obtain the PDMS fiber. And soaking the cured PDMS fiber into the fiber matrix fluid again, taking out the PDMS fiber, putting the PDMS fiber into a 90 ℃ oven, drying the PDMS fiber until the PDMS fiber is in a non-flowing micro-solidification state, putting the PDMS fiber into a sealed bag filled with PMMA particles, and uniformly attaching the PMMA particles to the surface of the PDMS fiber to obtain the core layer fiber.
4) Preparation of the pressed luminescent layer: adding 25wt% of isopropanol into the prepared fiber matrix liquid in the step 2), and vigorously stirring for 30min at normal temperature to fully and uniformly mix. Then the ZnS-Cu powder pretreated in the step 1) is mixed according to the content of 70wt percent and the Al content of 7wt percent 2 O 3 Adding the powder into the solution, and vigorously stirring for 30min at normal temperature to obtain a calendered layer impregnation solution. And finally, soaking the core layer fiber obtained in the step 3) into a calendaring layer solution, taking out the core layer fiber, and putting the core layer fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multiaxial luminescent fiber capable of realizing press luminescence.
5) Preparing a stretched light-emitting layer: adding the ZnS: cu powder pretreated in the step 1) into the fiber matrix solution prepared in the step 2) according to the content of 80wt% and 10wt% of PTFE powder, and violently stirring for 30min at normal temperature to fully and uniformly mix the ZnS: cu powder and the PTFE powder to obtain a stretching luminescent layer dipping solution. And finally, dipping the flexible multi-axis luminescent fiber which is obtained in the step 4) and emits light by pressing into the luminescent solution of the stretching layer, taking out the flexible multi-axis luminescent fiber, and putting the flexible multi-axis luminescent fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multi-axis luminescent fiber which can be stretched and emit light by pressing.
Comparative example 3
Comparative example 3 differs from example 3 in that: cu particles are different in size, and specifically comprise the following components:
1) Pretreatment of ZnS and Cu powder: under normal temperature conditions, znS: cu powder with the particle size of 35 μm and absolute ethyl alcohol are ground according to the proportion of 1.
2) Configuration of fiber-based body fluids: under normal temperature, mixing the main agent and the auxiliary agent of PDMS according to the proportion of 10.
Then, the product is processed
3) Preparing core layer fiber: injecting the fiber base fluid obtained in the step 2) into a fiber mold by using an injector to obtain a foamless PDMS solution, and drying the foamless PDMS solution in a drying oven at 90 ℃ to obtain the PDMS fiber. And soaking the cured PDMS fiber into the fiber matrix fluid again, taking out the PDMS fiber, putting the PDMS fiber into a 90 ℃ oven, drying the PDMS fiber until the PDMS fiber is in a non-flowing micro-solidification state, putting the PDMS fiber into a sealed bag filled with PMMA particles, and uniformly attaching the PMMA particles to the surface of the PDMS fiber to obtain the core layer fiber.
4) Preparation of the pressed luminescent layer: adding 25wt% of isopropanol into the prepared fiber matrix liquid in the step 2), and vigorously stirring for 30min at normal temperature to fully and uniformly mix. Then the ZnS-Cu powder pretreated in the step 1) is mixed according to the content of 70wt percent and the Al content of 7wt percent 2 O 3 Adding the powder into the solution, and vigorously stirring for 30min at normal temperature to obtain a calendered layer impregnation solution. And finally, soaking the core layer fiber obtained in the step 3) into a calendaring layer solution, taking out the core layer fiber, and putting the core layer fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multiaxial luminescent fiber capable of realizing press luminescence.
5) Preparing a stretched luminescent layer: adding the ZnS-Cu powder pretreated in the step 1) into the fiber matrix solution prepared in the step 2) according to the content of 80wt% and the PTFE powder of 10wt%, and vigorously stirring for 30min at normal temperature to fully and uniformly mix the ZnS-Cu powder and the PTFE powder to obtain a stretched light-emitting layer dipping solution. And finally, dipping the flexible multi-axis luminescent fiber which is obtained in the step 4) and emits light by pressing into the luminescent solution of the stretching layer, taking out the flexible multi-axis luminescent fiber, and putting the flexible multi-axis luminescent fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multi-axis luminescent fiber which can be stretched and emit light by pressing.
As can be seen from FIG. 3, in example 3, the particle sizes of (a) and (c) are ZnS: cu of 35 μm and (b) and (d) are shown as ZnS: cu of 20 μm, compared with comparative example 3. From the speckle pattern, the maximum ML intensity was found at a particle size of 20 μm for each sample set of ZnS: cu having the same added content. This is attributable to the fact that the specific surface area of the particles increases due to the decrease in particle diameter of the particles, and the carriers accelerate in operation when the stress stimulus is generated, thereby increasing the light emission intensity.
Example 4
1) Pretreatment of ZnS and Cu powder: under normal temperature conditions, znS: cu powder with a particle size of 25 μmm and absolute ethyl alcohol are ground according to a ratio of 1.
2) Configuration of fiber-based body fluids: under the condition of normal temperature, mixing a main agent of PDMS and an auxiliary agent according to the proportion of 10.
Then
3) Preparing core layer fiber: injecting the fiber base fluid obtained in the step 2) into a fiber mold by using an injector to obtain a foamless PDMS solution, and drying the foamless PDMS solution in a drying oven at 90 ℃ to obtain the PDMS fiber. And soaking the cured PDMS fiber into the fiber matrix fluid again, taking out the PDMS fiber, putting the PDMS fiber into a 90 ℃ drying oven, drying the PDMS fiber until the PDMS fiber is in a non-flowing micro-solidification state, putting the PDMS fiber into a sealed bag filled with PMMA particles, and uniformly attaching the PMMA particles to the surface of the fiber to obtain the core layer fiber.
4) Preparation of a pressed light-emitting layer: adding 25wt% of isopropanol into the prepared fiber matrix liquid in the step 2), and vigorously stirring for 30min at normal temperature to fully and uniformly mix. Then the ZnS-Cu powder pretreated in the step 1) is mixed according to the content of 70wt percent and the Al content of 7wt percent 2 O 3 Adding the powder to the solution at room temperatureAnd under the following condition, the mixture is stirred vigorously for 30min to be fully and uniformly mixed, and the calendaring layer dipping solution is obtained. And finally, soaking the core layer fiber obtained in the step 3) into a calendaring layer solution, taking out the core layer fiber, and putting the core layer fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multiaxial luminescent fiber capable of realizing press luminescence.
5) Preparing a stretched luminescent layer: adding the ZnS: cu powder pretreated in the step 1) into the fiber matrix solution prepared in the step 2) according to the content of 80wt% and 10wt% of PTFE powder, and violently stirring for 30min at normal temperature to fully and uniformly mix the ZnS: cu powder and the PTFE powder to obtain a stretching luminescent layer dipping solution. And finally, dipping the flexible multi-axis luminescent fiber which is obtained in the step 4) and emits light by pressing into the luminescent solution of the stretching layer, taking out the flexible multi-axis luminescent fiber, and putting the flexible multi-axis luminescent fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multi-axis luminescent fiber which can be stretched and emit light by pressing.
Comparative example 4
Comparative example 4 differs from example 4 in that: the different addition amounts of PTFE powder in the stretched luminous layer are as follows:
1) Pretreatment of ZnS and Cu powder: under normal temperature conditions, znS: cu powder with a particle size of 25 μm and absolute ethyl alcohol were ground at a ratio of 1.
2) Preparation of fiber-based body fluid: under normal temperature, mixing the main agent and the auxiliary agent of PDMS according to the proportion of 10.
Then, the product is processed
3) Preparing core layer fiber: injecting the fiber base fluid obtained in the step 2) into a fiber mold by using an injector to obtain a foamless PDMS solution, and drying the foamless PDMS solution in a drying oven at 90 ℃ to obtain the PDMS fiber. And soaking the cured PDMS fiber into the fiber matrix fluid again, taking out the PDMS fiber, putting the PDMS fiber into a 90 ℃ drying oven, drying the PDMS fiber until the PDMS fiber is in a non-flowing micro-solidification state, putting the PDMS fiber into a sealed bag filled with PMMA particles, and uniformly attaching the PMMA particles to the surface of the fiber to obtain the core layer fiber.
4) Preparation of a pressed light-emitting layer: adding 25wt% of isopropanol into the prepared fiber matrix liquid in the step 2), and vigorously stirring for 30min at normal temperatureMixing completely and uniformly. Then the ZnS-Cu powder pretreated in the step 1) is mixed according to the content of 70wt percent and the Al content of 7wt percent 2 O 3 Adding the powder into the solution, and vigorously stirring for 30min at normal temperature to obtain a calendered layer impregnation solution. And finally, dipping the core layer fiber obtained in the step 3) into a calendaring layer solution, fishing out, and drying in a 90 ℃ drying oven for 30min to obtain the flexible multiaxial luminescent fiber capable of press luminescence.
5) Preparing a stretched light-emitting layer: adding the ZnS: cu powder pretreated in the step 1) into the fiber matrix solution prepared in the step 2) according to the content of 80wt% and the PTFE powder of 0wt%, 20wt% and 30wt%, and vigorously stirring for 30min at normal temperature to fully and uniformly mix the ZnS: cu powder and the PTFE powder to obtain the dipping solution for the tensile light-emitting layer. And finally, dipping the flexible multi-axis luminescent fiber which is obtained in the step 4) and emits light by pressing into the luminescent solution of the stretching layer, taking out the flexible multi-axis luminescent fiber, and putting the flexible multi-axis luminescent fiber into a 90 ℃ oven for drying for 30min to obtain the flexible multi-axis luminescent fiber which can be stretched and emit light by pressing.
As can be seen from FIG. 4, in example 4, compared with comparative example 4, (a) is a speckle pattern at 0% PTFE addition; (b) is a light spot diagram when the content of PTFE added is 10%; (c) is a light spot pattern when the content of PTFE added is 20%; (d) is a light spot pattern when the content of PTFE added is 30%; as the PTFE nanoparticle content increases, the luminescence intensity increases first and then decreases, resulting in an optimal weight percentage of 20%. Compared with the luminescent composite material without the polytetrafluoroethylene nano-particles, the luminescent intensity is obviously improved. This finding indicates that the addition of PTFE nanoparticles does promote triboelectric electrification between the contacting surfaces. However, the excess amount of teflon nanoparticles decreases the transparency of PDMS, thereby preventing the transmission of luminescence.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A preparation method of a stretchable and pressable luminescent multiaxial flexible luminescent fiber is characterized by comprising the following steps:
s1: powder pretreatment: wet grinding ZnS, cu powder and absolute ethyl alcohol and drying;
s2: mixing a Polydimethylsiloxane (PDMS) main agent and an auxiliary agent in proportion to prepare a fiber-based body fluid;
s3: curing the fiber matrix liquid to obtain PDMS fibers, impregnating the cured PDMS fibers in the fiber matrix liquid again, adhering polymethyl methacrylate (PMMA) particles, and curing to obtain core layer fibers;
s4: adding isopropanol into fiber matrix liquid, and pre-treating ZnS, cu powder and Al 2 O 3 Powder, which is prepared into a pressing luminescent layer solution, and the core layer fiber is soaked and then fished out for curing to obtain a fiber A capable of exciting green light during pressing;
s5: adding pretreated ZnS: cu powder and Polytetrafluoroethylene (PTFE) powder into a fiber matrix solution to prepare a stretched luminescent layer solution, soaking the fiber A into the stretched luminescent layer solution, and fishing out and solidifying to obtain the multi-axis flexible luminescent fiber capable of stretching luminescence and pressing luminescence.
2. The method for preparing the stretchable and pressable luminescent multiaxial flexible luminescent fiber according to claim 1, wherein the stretchable and pressable luminescent multiaxial flexible luminescent fiber comprises the following steps: in the step S1, the particle size of the adopted ZnS-Cu powder is 20-35 μm.
3. The method for preparing the stretchable and pressable luminescent multiaxial flexible luminescent fiber according to claim 1, wherein the stretchable and pressable luminescent multiaxial flexible luminescent fiber comprises the following steps: in step S2, the ratio of the PDMS base agent to the auxiliary agent is 10.
4. The method for preparing the multi-axis flexible luminescent fiber capable of stretching and pressing luminescence according to claim 1, wherein the method comprises the following steps: in step S2, the mixing conditions are: and (3) violently stirring the main agent and the auxiliary agent for 30min at normal temperature, fully and uniformly mixing, and standing for defoaming for later use.
5. The method for preparing the stretchable and pressable luminescent multiaxial flexible luminescent fiber according to claim 1, wherein the stretchable and pressable luminescent multiaxial flexible luminescent fiber comprises the following steps: in step S3, the PMMA particles have a size of 100-500 μm.
6. The method for preparing the stretchable and pressable luminescent multiaxial flexible luminescent fiber according to claim 1, wherein the stretchable and pressable luminescent multiaxial flexible luminescent fiber comprises the following steps: in step S3, the processing conditions are: injecting foamless PDMS solution into a mould, drying to obtain PDMS fiber, immersing the PDMS fiber into the fiber matrix liquid again, fishing out and drying until the PDMS fiber is in a non-flowing micro-solidification state, uniformly attaching PMMA particles on the surface of the PDMS fiber, and curing to obtain the core layer fiber.
7. The method for preparing the stretchable and pressable luminescent multiaxial flexible luminescent fiber according to claim 1, wherein the stretchable and pressable luminescent multiaxial flexible luminescent fiber comprises the following steps: in step S4, the content of isopropanol is 20wt% -70wt%, the content of ZnS: cu powder is 50wt% -90wt%, and Al 2 O 3 The content of the powder is 1wt% to 9wt%.
8. The method for preparing multi-axis flexible luminous fiber capable of stretching and pressing to emit light according to claim 7, wherein the method comprises the following steps: in step S4, the processing conditions are: adding 20-70 wt% of isopropanol into the fiber matrix liquid, vigorously stirring at normal temperature to mix the mixture uniformly, and adding the pretreated ZnS-Cu powder into the fiber matrix liquid according to the content of 50-90 wt% and the Al content of 1-9 wt% 2 O 3 Adding the powder into the mixed solution, and violently stirring at normal temperature to fully and uniformly mix the powder to obtain the calendaring layer impregnation solution.
9. The method for preparing the multi-axis flexible luminescent fiber capable of stretching and pressing luminescence according to claim 1, wherein the method comprises the following steps: in step S5, the content of ZnS and Cu powder is 50wt% to 90wt%, and the content of PTFE powder is 10wt% to 30wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211319291.1A CN115726193B (en) | 2022-10-26 | 2022-10-26 | Preparation method of multiaxial flexible luminous fiber capable of stretching and pressing to emit light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211319291.1A CN115726193B (en) | 2022-10-26 | 2022-10-26 | Preparation method of multiaxial flexible luminous fiber capable of stretching and pressing to emit light |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115726193A true CN115726193A (en) | 2023-03-03 |
| CN115726193B CN115726193B (en) | 2024-02-20 |
Family
ID=85294010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211319291.1A Active CN115726193B (en) | 2022-10-26 | 2022-10-26 | Preparation method of multiaxial flexible luminous fiber capable of stretching and pressing to emit light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115726193B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354499A (en) * | 2022-09-02 | 2022-11-18 | 郑州大学 | Stress luminescent fiber and continuous preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479437A (en) * | 2015-01-06 | 2015-04-01 | 东华大学 | Preparation method for super-hydrophobic self-luminous coating |
| KR20190027161A (en) * | 2017-09-06 | 2019-03-14 | 국민대학교산학협력단 | Lateral emitting optical fiber and manufacturing method for thereof |
| US20200303682A1 (en) * | 2018-01-14 | 2020-09-24 | National Formosa University | Method of brightness enhancement layer with sub-wavelength structure for a light-emitting element |
| CN114456798A (en) * | 2021-12-23 | 2022-05-10 | 东华大学 | Stress luminescent material and preparation and application thereof |
| CN114672896A (en) * | 2022-03-16 | 2022-06-28 | 华中科技大学 | Polydimethylsiloxane fiber preparation method and polydimethylsiloxane fiber |
| CN115058791A (en) * | 2022-06-29 | 2022-09-16 | 华中科技大学 | Controllable light-guiding color-changing fiber, fabric and preparation method thereof |
-
2022
- 2022-10-26 CN CN202211319291.1A patent/CN115726193B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479437A (en) * | 2015-01-06 | 2015-04-01 | 东华大学 | Preparation method for super-hydrophobic self-luminous coating |
| KR20190027161A (en) * | 2017-09-06 | 2019-03-14 | 국민대학교산학협력단 | Lateral emitting optical fiber and manufacturing method for thereof |
| US20200303682A1 (en) * | 2018-01-14 | 2020-09-24 | National Formosa University | Method of brightness enhancement layer with sub-wavelength structure for a light-emitting element |
| CN114456798A (en) * | 2021-12-23 | 2022-05-10 | 东华大学 | Stress luminescent material and preparation and application thereof |
| CN114672896A (en) * | 2022-03-16 | 2022-06-28 | 华中科技大学 | Polydimethylsiloxane fiber preparation method and polydimethylsiloxane fiber |
| CN115058791A (en) * | 2022-06-29 | 2022-09-16 | 华中科技大学 | Controllable light-guiding color-changing fiber, fabric and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 青勇权;郑燕升;何易;胡传波;莫倩;: "ZnO/聚二甲基硅氧烷超疏水薄膜的制备及其性能研究", 塑料工业, no. 07, pages 108 - 111 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354499A (en) * | 2022-09-02 | 2022-11-18 | 郑州大学 | Stress luminescent fiber and continuous preparation method and application thereof |
| CN115354499B (en) * | 2022-09-02 | 2023-10-03 | 郑州大学 | Stress luminescent fiber, continuous preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115726193B (en) | 2024-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Qian et al. | Printable Skin‐driven mechanoluminescence devices via nanodoped matrix modification | |
| CN105968717B (en) | A kind of preparation of carbon fiber/graphite alkene/carbon nano tube/epoxy resin prepreg and carbon fibre composite | |
| CN115726193A (en) | Preparation method of stretchable and pressable luminescent multi-axis flexible luminescent fiber | |
| CN104479437B (en) | Preparation method for super-hydrophobic self-luminous coating | |
| US7999455B2 (en) | Luminescent device including nanofibers and light stimulable particles disposed on a surface of or at least partially within the nanofibers | |
| WO2005036563A3 (en) | Nanocomposites with controlled electrical properties | |
| ZA200701168B (en) | Fibre polymer composite (FPC) material | |
| CN108384078A (en) | A kind of preparation method of conductive protection rubber gloves | |
| CN100593550C (en) | Method for improving the elasticity of rare earth auxiliary agent modified rubber | |
| CN106673532B (en) | A kind of perception nickel nanofiber cement-base composite material certainly | |
| PH12020050046A1 (en) | Pellet of liquid crystal polyester resin composition and method for producing pellet of liquid crystal polyester resin composition | |
| CN108527572A (en) | A kind of transparent wood and preparation method thereof with optics adjusting function | |
| JP2004137351A (en) | Composite material, artificial luminous skin and artificial luminous body | |
| CN107059248A (en) | A kind of graphene oxide monolayer modifies the preparation method of polyacrylonitrile nanofiber film | |
| CN109265716A (en) | The processing method and thermosetting polymer composite material of thermoset macromolecule material | |
| Shi et al. | Investigation of the effects of adhesion promoters on the adhesion properties of rubber/steel cord by a new testing technique | |
| CN109425450B (en) | Sensor and electronic, bionic skin and bionic communication equipment applying same | |
| CN208370793U (en) | A kind of noctilucence mosquito expelling plaster | |
| CN105274828B (en) | A kind of method for rapidly and efficiently lifting aramid fiber antimildew and antibacterial | |
| CN106486571B (en) | A kind of preparation method of high heat conduction quantum dot film | |
| CN101891909B (en) | Multifunctional nano CaCO3 reinforced nitrile rubber | |
| CN114001637A (en) | Preparation method of elastic stress luminescence conductive strain sensor with dual-mode core-sheath structure | |
| CN109181311A (en) | A kind of asymmetric graphene silicon rubber dielectric composite material of multilayer and preparation method thereof | |
| CN110240898A (en) | A kind of preparation and application of flexible extensible stress irradiance device | |
| Zhang et al. | Design of MWCNTs and rGO co‐decorated elastic core‐spun yarn towards multifunctional flexible strain sensor with low detection limit and wide working range |
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 |