CN105780169B - Glow the preparation method of long-afterglow fluorescent fiber - Google Patents
Glow the preparation method of long-afterglow fluorescent fiber Download PDFInfo
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- CN105780169B CN105780169B CN201610134614.8A CN201610134614A CN105780169B CN 105780169 B CN105780169 B CN 105780169B CN 201610134614 A CN201610134614 A CN 201610134614A CN 105780169 B CN105780169 B CN 105780169B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Luminescent Compositions (AREA)
- Artificial Filaments (AREA)
Abstract
The present invention relates to a kind of preparation method for the long-afterglow fluorescent fiber that glows, it is characterized in, comprises the following steps that：（1）Titanate coupling agent, absolute ethyl alcohol, the photothermal converting agent of oxygen anthracene structure and fluorescent material are mixed, the heating response under high speed dispersity, is filtered after reaction, is fully washed with absolute ethyl alcohol, dry, crush, photothermal converting agent/fluorescent material compound is made；（2）Premixed after PET powders are dried in vacuum drying oven with photothermal converting agent/fluorescent material compound, obtain fluorescent fiber agglomerate material；（3）After fluorescent fiber agglomerate material is dried, spinning master batch is made using double screw extruder melt pelletization；（4）PET master batch is uniformly mixed with spinning master batch, melt spinning is carried out after drying, the long-afterglow fluorescent fiber that glows is made through extruding, drawing-off, winding.Invention increases the adhesion with fiber base material PET macromoleculars, obtains favorable dispersibility and has long afterglow feux rouges fluorescent fiber material.
Description
Technical field
The present invention relates to a kind of preparation method for the long-afterglow fluorescent fiber that glows, and belongs to function textile material technology neck
Domain.
Background technology
With the development of science and technology, the fibrous raw material of single performance can not meet the growing feature of people
The demand of textile, and fiber security in itself and the feature of environmental protection are also increasingly valued by people simultaneously.Jiangsu Province's conduct
Weaving is big to save the development for leading national textile industry, in recent years, with the rapid development of our province industry, long-afterglow material species
Abundant improving with performance and spinning technique, the maturation of equipment, RE luminous fiber arise at the historic moment and achieve certain research
Achievement.Luminous fiber is a kind of new functional fiber material, and its is high in technological content, and itself light is sent in no light.It is dilute
Native luminous fiber is using fibre-forming polymer as base material, and luminescent material and colored pigment and spin finish aid are added in spinning process,
The new type functional fiber with storage light-lighting function being prepared using melt spinning method.RE luminous fiber lights
Process mainly absorbs luminous energy-luminous energy storage-luminous energy release, and when exciting light is irradiated to fiber surface, fibrous inside lights
Material absorbs luminous energy, and rare earth ion outer-shell electron transits to excitation state and stores luminous energy；Remove excitation source, electronics jump
Ground state is adjourned to, the energy of absorption is discharged in the form of light, produces transmitting light.Light material used by producing luminous fiber
Expect that for alkaline earth aluminate persistent luminescent material, the luminescent material has excellent luminescent properties, and does not have radioactivity, to people
Body and environment will not produce harm.Luminous fiber is used for garment for children, the security that children walk at night can be improved, simultaneously
The children's interesting of garment for children can also be increased；Luminous fiber is used for the work clothes of night work, such as the work of mine worker
Clothes, provide convenience, and when peril occurs, the self light emission function of luminous fiber is just for the work for the personnel of working at night
In the expansion of search-and-rescue work, help is provided for rescue work；Luminous fiber is used for the exploitation of embroidery product, is high-tech and biography
The perfect adaptation for technique of uniting, new approaches are proposed for the innovation of traditional embroidery product, the technique for being advantageous to improve embroidery product is beautiful
Art and reserve value；Luminous fiber is used for down toy, the enjoying nature of down toy is improved, widens down toy significantly
Selling market.Luminous fiber can be used for all kinds of daily lifes, amusement and recreation and communications and transportation etc., be provided more for the mankind
Convenient, abundant living condition.
The development of luminous fiber can trace back to 1998 earliest, and German a company develops one kind unglazed first
Launch the fiber of green glow according in the case of, use zinc sulphide as luminescent material, luminescent material, spin finish aid etc. are added to spinning base
It is prepared in material, the fiber original intensity prepared using the method is higher but persistence is too short, and is placed on air
In be easy to aging, therefore the fiber is not widely used.2002, a company of the U.S. used to cover the shortage
The zinc sulphide for adding radio isotope hard iron 147 is luminescent material, a kind of luminous fiber is made, the luminosity of luminous fiber obtains
A certain degree of raising is arrived, but the addition of radioactive element generates corresponding harm, therefore the night to human body and environment
Fiber optics does not obtain research application well yet.At the beginning of 21 century (2000), Japanese researcher is to luminous fiber
Research and development be made that significant contribution, 2004, E.Shim have developed a kind of sheath-core bicomponent luminous fiber, and the fiber is with the material that lights
Material does core component or shell component, does shell component or core component with fibre substrate, the noctilucence of skin-core structure is made up of extraordinary spinning
Fiber, and the luminescent properties and mechanical performance of the fiber are studied.Also noctilucence of some Japanese scholars to skin-core structure
The not luminous component of fiber is dyed so that fiber shows colourful color, but the stock-dye when there is illumination
Brightness afterwards largely reduces.
At home, department's spring thunder in 2003 employs thermoplastic polypropylene and the blending of rare earth aluminate luminescent material, melts
The method for melting spinning is prepared for long persistence luminous polypropylene fiber.Result of study is shown：The fiber has preferable luminescent properties,
Persistence can reach more than 10 hours；In fiber light-storing material content increase, its physical and mechanical properties decline, persistence and
Brightness increase；When light-storing material content is 5%, properties are preferable, but then have no report.Southern Yangtze University in 2004 and river
Su Guoda companies, which combine, successfully have developed RE luminous fiber, and industrialization, then be widely used research.By grinding
Study carefully and point out that inorganic pigment can optionally be absorbed to light, cause the emission spectrum of fiber different.Transparent inorganic pigment pair
The selection of light, which absorbs, can influence propagation of the light in fibrous inside, and SrAl in fiber2O4:Eu2+, Dy3+Rare earth luminescent material and face
The active force of material is different, and the spectral radiation curves for causing to add the fiber of different colours have differences.With grinding for luminous fiber
Study carefully development, fiber Photochromic Properties turn into main study subject, Yan Yanhong etc. by studying pigment to luminous fiber Photochromic Properties
Influence is drawn a conclusion：The color form and aspect of luminous fiber determine by the tone of the pigment added, the luminous fiber of yellow and green
Brightness value is similar.Degree on luminescent fibre pigment color hatching effect is higher bigger on luminosity influence；Pigment color
Deeper, the luminosity of luminescent fibre is lower；Pigment color is more shallow, and luminosity is higher.Light of the colored pigment to luminous fiber
Color form and aspect influence unobvious, are still yellow-green light.The photochromic of luminous fiber is compound photochromic based on yellow-green light, excitation
All relatively low, color developing is preferable.
Due to the addition of colored pigment in spinning process, luminous fiber can show colourful face when there is illumination
Color, and at dark, the luminous and Photochromic Properties of luminous fiber depend on the performance of used luminescent material.Noctilucence is fine at present
Wesy's luminescent material has Sr2MgSi2O7:Eu2+, Dy3+、SrAl2O4:Eu2+, Dy3+Two kinds, blue light and green glow are mainly sent, and it is red
The effect of color luminescent ceramic matrix lattice structure and the low-energy ransition of rare earth ion outer-shell electron cause its luminescent properties poor, reach
Less than the performance requirement for preparing luminous fiber.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of long-afterglow fluorescent fiber that glows
Preparation method, by the way of master batch addition, and change the complex method of red light flourescent material, add and fiber base material PET
The adhesion of macromolecular, obtain favorable dispersibility and there is long afterglow feux rouges fluorescent fiber material.
According to technical scheme provided by the invention, a kind of preparation method for the long-afterglow fluorescent fiber that glows, it is characterized in, wraps
Include following processing step：
(1) preparation of photothermal converting agent/fluorescent material compound：By titanate coupling agent, absolute ethyl alcohol, oxygen anthracene structure light
Conversion agent and fluorescent material in mass ratio 0.5~1.5:60~80:0.03~0.07:10 mixing, in closing, high speed dispersity
Under be heated to 50~80 DEG C, react 20~60min, filter after completion of the reaction, and fully washed, dried with absolute ethyl alcohol, be made
Photothermal converting agent/fluorescent material compound；
(2) grinding of photothermal converting agent/fluorescent material compound：Photothermal converting agent/fluorescent material compound is crushed, obtained
To 10~200nm of particle diameter powder；
(3) premixed, used with photothermal converting agent/fluorescent material compound after PET powders are dried in vacuum drying oven
The premixing machine that rotating speed is 50~500r/min carries out batch mixing, obtains fluorescent fiber agglomerate material；Wherein photothermal converting agent/fluorescent material
The mass percent of compound is 10~40%；
(4) after fluorescent fiber agglomerate material is dried, spinning master batch is made using double screw extruder melt pelletization；
(5) PET master batch is uniformly mixed with the spinning master batch that step (4) obtains, the spinning master batch that wherein step (4) obtains
Mass percent be 2~20%；Carry out melt spinning after drying, melt temperature is 270~290 DEG C during spinning, through extruding, leading
Stretch, wind the long-afterglow fluorescent fiber that glows is made.
In a detailed embodiment, the fluorescent material is SrAl2O4:Eu2+, Dy3+。
In a detailed embodiment, step (2) photothermal converting agent/fluorescent material compound passes through mechanical milling method
Crushed with comminution by gas stream.
In a detailed embodiment, PET powder dryings temperature is 110~120 DEG C in the step (3), when drying
Between be 2~4h.
In a detailed embodiment, in the step (4) drying temperature of fluorescent fiber agglomerate material for 110~
120 DEG C, drying time is 2~10h.
In a detailed embodiment, the extruder temperature of double screw extruder is 260~290 DEG C in the step (4),
Screw speed is 200-600r/min.
In a detailed embodiment, mixing apparatus uses rotating speed as the pre- of 50~500r/min in the step (5)
Mixed machine.
In a detailed embodiment,：Drying temperature is 110~120 DEG C in the step (5), drying time 10
~24h.
In a detailed embodiment, the photothermal converting agent of the oxygen anthracene structure is
The preparation method of the long-afterglow fluorescent fiber of the present invention that glows, do not damaging PET physics and chemically
The problem of PET can not glow is not only solved on the basis of energy, more changed by way of chemical modification glow it is glimmering
The complex method of luminescent material and photothermal converting agent, its application in the range of weaving is also extended while adding fiber added value
Field.
Brief description of the drawings
Figure 1A and Figure 1B is that the SEM of photothermal converting agent/fluorescent material compound schemes, and the engineer's scale length in Figure 1A is unit 20
μm, Figure 1B engineer's scale length is 10 μm.
Fig. 2 is luminous fiber decay curve figure；Abscissa is the time, unit s；Ordinate is brightness, unit cd
m- 2。
Fig. 3 is luminous fiber spectral radiation curves；Abscissa is wavelength, unit nm；Ordinate is relative intensity, unit
For a.u..
Embodiment
With reference to specific drawings and examples, the invention will be further described.
Fluorescent material used in the present invention is SrAl2O4:Eu2+, Dy3+.The photothermal converting agent of oxygen anthracene structure of the present invention
For
Embodiment 1：A kind of preparation method for the long-afterglow fluorescent fiber that glows, is comprised the following steps that：
(1) preparation of photothermal converting agent/fluorescent material compound：By titanate coupling agent, absolute ethyl alcohol, oxygen anthracene structure light
Conversion agent and fluorescent material in mass ratio 1:70:0.05:10 mixing, 70 DEG C are heated under closing, high speed dispersity, reaction
40min, filter after completion of the reaction, and fully washed, dried with absolute ethyl alcohol, photothermal converting agent/fluorescent material compound is made；
(2) grinding of photothermal converting agent/fluorescent material compound：Photothermal converting agent/fluorescent material compound is passed through into mechanical grinding
Mill method and comminution by gas stream are crushed, and obtain particle diameter 60nm powder；
(3) PET powders are dried in vacuum drying oven, drying temperature is 110 DEG C, drying time 3h；After drying with light
Conversion agent/fluorescent material compound is premixed, and is used rotating speed to carry out batch mixing for 200r/min premixing machine, is obtained fluorescent fiber
Agglomerate material；Wherein the mass percent of photothermal converting agent/fluorescent material compound is 25%；
(4) fluorescent fiber agglomerate material is dried, drying temperature is 110 DEG C, drying time 5h；Using double spiral shells after drying
Spinning master batch is made in bar extruder melt pelletization, and the extruder temperature of double screw extruder is 275 DEG C, screw speed 400r/
min；
(5) PET master batch is uniformly mixed with the spinning master batch that step (4) obtains, the spinning master batch that wherein step (4) obtains
Mass percent be 10%, mixing apparatus uses premixing machine of the rotating speed for 200r/min；Melt spinning is carried out after drying, is dried
Temperature is 110 DEG C, drying time 18h；Melt temperature is 285 DEG C during spinning, and the length that glows is made through extruding, drawing-off, winding
Twilight sunset fluorescent fiber.
Performance test：
(1) ESEM：The step of embodiment 1 (2) is obtained into photothermal converting agent/fluorescent material compound and is scanned Electronic Speculum survey
Examination, it can be seen that light transforming agent/fluorescent material compound interface cohesion is good from Figure 1A, Figure 1B, form complex table
Face pattern, the fine particle particle diameter of attachment in 60nm sizes and are evenly distributed.
(2) the long-afterglow fluorescent fiber that glows for obtaining embodiment 1 carries out long afterglow and fluorescent emission test test, its
As a result as shown in Figures 2 and 3.As shown in Fig. 2 afterglow intensity is 0.1/cdm when decay curve tends towards stability2, this value
Much larger than the afterglow intensity 0.001/cdm of eye recognition2, therefore the needs of fluorescent product can be met.It is as shown in figure 3, glimmering
The maximum emission wavelength of light is herein red light district in 600nm or so, therefore fiber prepared by the present invention is red long-afterglow fluorescence
Fiber.
Embodiment 2：A kind of preparation method for the long-afterglow fluorescent fiber that glows, is comprised the following steps that：
(1) preparation of photothermal converting agent/fluorescent material compound：By titanate coupling agent, absolute ethyl alcohol, oxygen anthracene structure light
Conversion agent and fluorescent material in mass ratio 0.5:60:0.03:10 mixing, are heated to 50 DEG C, instead under closing, high speed dispersity
60min is answered, is filtered after completion of the reaction, and is fully washed, dried with absolute ethyl alcohol, photothermal converting agent/fluorescent material compound is made；
(2) grinding of photothermal converting agent/fluorescent material compound：Photothermal converting agent/fluorescent material compound is passed through into mechanical grinding
Mill method and comminution by gas stream are crushed, and obtain particle diameter 10nm powder；
(3) PET powders are dried in vacuum drying oven, drying temperature is 110 DEG C, drying time 4h；After drying with light
Conversion agent/fluorescent material compound is premixed, and is used rotating speed to carry out batch mixing for 50r/min premixing machine, is obtained fluorescent fiber
Agglomerate material；Wherein the mass percent of photothermal converting agent/fluorescent material compound is 10%；
(4) fluorescent fiber agglomerate material is dried, drying temperature is 110 DEG C, drying time 10h；Using double after drying
Spinning master batch is made in screw extruder melt pelletization, and the extruder temperature of double screw extruder is 260 DEG C, screw speed 200r/
min；
(5) PET master batch is uniformly mixed with the spinning master batch that step (4) obtains, the spinning master batch that wherein step (4) obtains
Mass percent be 2%, mixing apparatus uses premixing machine of the rotating speed for 50r/min；Melt spinning is carried out after drying, dries temperature
Spend for 110 DEG C, drying time 24h；Melt temperature is 270 DEG C during spinning, is made through extruding, drawing-off, winding more than the length that glows
Brightness fluorescent fiber.
Embodiment 3：A kind of preparation method for the long-afterglow fluorescent fiber that glows, is comprised the following steps that：
(1) preparation of photothermal converting agent/fluorescent material compound：By titanate coupling agent, absolute ethyl alcohol, oxygen anthracene structure light
Conversion agent and fluorescent material in mass ratio 1.5:80:0.07:10 mixing, are heated to 80 DEG C, instead under closing, high speed dispersity
20min is answered, is filtered after completion of the reaction, and is fully washed, dried with absolute ethyl alcohol, photothermal converting agent/fluorescent material compound is made；
(2) grinding of photothermal converting agent/fluorescent material compound：Photothermal converting agent/fluorescent material compound is passed through into mechanical grinding
Mill method and comminution by gas stream are crushed, and obtain particle diameter 200nm powder；
(3) PET powders are dried in vacuum drying oven, drying temperature is 120 DEG C, drying time 2h；After drying with light
Conversion agent/fluorescent material compound is premixed, and is used rotating speed to carry out batch mixing for 500r/min premixing machine, is obtained fluorescent fiber
Agglomerate material；Wherein the mass percent of photothermal converting agent/fluorescent material compound is 40%；
(4) fluorescent fiber agglomerate material is dried, drying temperature is 120 DEG C, drying time 2h；Using double spiral shells after drying
Spinning master batch is made in bar extruder melt pelletization, and the extruder temperature of double screw extruder is 290 DEG C, screw speed 600r/
min；
(5) PET master batch is uniformly mixed with the spinning master batch that step (4) obtains, the spinning master batch that wherein step (4) obtains
Mass percent be 20%, mixing apparatus uses premixing machine of the rotating speed for 500r/min；Melt spinning is carried out after drying, is dried
Temperature is 120 DEG C, drying time 10h；Melt temperature is 290 DEG C during spinning, and the length that glows is made through extruding, drawing-off, winding
Twilight sunset fluorescent fiber.
Embodiment 4：A kind of preparation method for the long-afterglow fluorescent fiber that glows, is comprised the following steps that：
(1) preparation of photothermal converting agent/fluorescent material compound：By titanate coupling agent, absolute ethyl alcohol, oxygen anthracene structure light
Conversion agent and fluorescent material in mass ratio 0.6:65:0.04:10 mixing, are heated to 60 DEG C, instead under closing, high speed dispersity
30min is answered, is filtered after completion of the reaction, and is fully washed, dried with absolute ethyl alcohol, photothermal converting agent/fluorescent material compound is made；
(2) grinding of photothermal converting agent/fluorescent material compound：Photothermal converting agent/fluorescent material compound is passed through into mechanical grinding
Mill method and comminution by gas stream are crushed, and obtain particle diameter 100nm powder；
(3) PET powders are dried in vacuum drying oven, drying temperature is 115 DEG C, drying time 3h；After drying with light
Conversion agent/fluorescent material compound is premixed, and is used rotating speed to carry out batch mixing for 250r/min premixing machine, is obtained fluorescent fiber
Agglomerate material；Wherein the mass percent of photothermal converting agent/fluorescent material compound is 20%；
(4) fluorescent fiber agglomerate material is dried, drying temperature is 115 DEG C, drying time 3h；Using double spiral shells after drying
Spinning master batch is made in bar extruder melt pelletization, and the extruder temperature of double screw extruder is 270 DEG C, screw speed 300r/
min；
(5) PET master batch is uniformly mixed with the spinning master batch that step (4) obtains, the spinning master batch that wherein step (4) obtains
Mass percent be 5%, mixing apparatus uses premixing machine of the rotating speed for 150r/min；Melt spinning is carried out after drying, is dried
Temperature is 115 DEG C, drying time 12h；Melt temperature is 280 DEG C during spinning, and the length that glows is made through extruding, drawing-off, winding
Twilight sunset fluorescent fiber.
Claims (4)
1. a kind of preparation method for the long-afterglow fluorescent fiber that glows, it is characterized in that, comprise the following steps that：
（1）The preparation of photothermal converting agent/fluorescent material compound：The light of titanate coupling agent, absolute ethyl alcohol, oxygen anthracene structure is changed
Agent and fluorescent material in mass ratio 0.5 ~ 1.5:60~80:0.03~0.07:10 mixing, are heated under closing, high speed dispersity
To 50~80 DEG C, 20~60min is reacted, is filtered after completion of the reaction, and fully washed, dried with absolute ethyl alcohol, light conversion is made
Agent/fluorescent material compound；
（2）The grinding of photothermal converting agent/fluorescent material compound：Photothermal converting agent/fluorescent material compound is crushed, obtains grain
10~200nm of footpath powder；
（3）It will be premixed after PET powder dryings with photothermal converting agent/fluorescent material compound, use rotating speed as 50~500r/
Min premixing machine carries out batch mixing, obtains fluorescent fiber agglomerate material；The wherein quality hundred of photothermal converting agent/fluorescent material compound
Fraction is 10~40%；
（4）After fluorescent fiber agglomerate material is dried, spinning master batch is made using double screw extruder melt pelletization；
（5）By PET master batch and step（4）Obtained spinning master batch uniformly mixes, wherein step（4）The matter of obtained spinning master batch
It is 2~20% to measure percentage；Carry out melt spinning after drying, melt temperature is 270~290 DEG C during spinning, through extruding, drawing-off, volume
Turn to the long-afterglow fluorescent fiber that glows；
The step（2）Photothermal converting agent/fluorescent material compound is crushed by mechanical milling method and comminution by gas stream；
The step（3）Middle PET powder dryings temperature is 110~120 DEG C, and drying time is 2~4h；
The step（4）The drying temperature of middle fluorescent fiber agglomerate material is 110~120 DEG C, and drying time is 2~10h；
The step（5）Middle mixing apparatus uses premixing machine of the rotating speed for 50~500r/min.
2. the preparation method of the long-afterglow fluorescent fiber as claimed in claim 1 that glows, it is characterized in that：The fluorescent material is
SrAl2O4:Eu2+, Dy3+。
3. the preparation method of the long-afterglow fluorescent fiber as claimed in claim 1 that glows, it is characterized in that：The step（4）In
The extruder temperature of double screw extruder is 260~290 DEG C, screw speed 200-600r/min.
4. the preparation method of the long-afterglow fluorescent fiber as claimed in claim 1 that glows, it is characterized in that：The step（5）In
Drying temperature is 110~120 DEG C, and drying time is 10~24h.
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| CN107904692A (en) * | 2017-11-09 | 2018-04-13 | 浙江花小匠网络科技有限公司 | A kind of preparation method of long-afterglow fluorescent composite filament |
| CN108407252B (en) * | 2018-03-16 | 2020-07-03 | 江南大学 | Preparation method of 3D printing material capable of emitting red light |
| CN108822830B (en) * | 2018-05-21 | 2020-11-27 | 江南大学 | Preparation method of rare earth aluminate-based composite red luminescent material and product thereof |
| CN109734940B (en) * | 2019-01-29 | 2021-07-16 | 江南大学 | Preparation method of rare earth silicate-based composite red light-emitting greenhouse film |
| CN110344150A (en) * | 2019-07-22 | 2019-10-18 | 南通汉卓纺织科技有限公司 | A kind of production method of high tensile flexible luminous yarn |
| CN110373738B (en) * | 2019-08-19 | 2021-12-03 | 闽江学院 | Preparation method of warm color light emitting optical fiber |
| CN110983482B (en) * | 2019-12-23 | 2021-12-28 | 江苏恒科新材料有限公司 | High-strength polyester fishing net with self-luminous function and preparation method thereof |
| CN111962180A (en) * | 2020-08-07 | 2020-11-20 | 闽江学院 | Red long afterglow luminous composite fiber filament and preparation method thereof |
| CN113563704A (en) * | 2021-08-03 | 2021-10-29 | 西北师范大学 | Polylactic acid-based 3D printing composite material capable of continuously emitting light and preparation thereof |
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