CN106480525B - A kind of rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure and preparation method thereof - Google Patents

A kind of rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure and preparation method thereof Download PDF

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CN106480525B
CN106480525B CN201610896731.8A CN201610896731A CN106480525B CN 106480525 B CN106480525 B CN 106480525B CN 201610896731 A CN201610896731 A CN 201610896731A CN 106480525 B CN106480525 B CN 106480525B
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rare earth
aluminic acid
skin
acid strontium
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CN106480525A (en
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田银彩
王明
高风仙
于翔
迟长龙
杨秀琴
梁欠倩
李博琛
林秋虎
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Henan Institute of Engineering
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • 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
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent

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Abstract

The invention discloses rare earth aluminic acid strontium long afterglow luminescent fibres of a kind of skin-core structure and preparation method thereof, as mass fraction, sandwich layer 70-85%, cortex 15-30%；Sandwich layer is to be made of the following components: rare earth aluminic acid strontium luminescent powder 10 ~ 30%, phosphite ester 0.02-0.05%, antioxidant 0.02-0.2%, silane coupling agent 0.5-1%, surplus are polyamide；Cortex is using transparent polymethyl methacrylate, polycarbonate or the polystyrene resin for adding toughener.Luminescent fibre prepared by the present invention is in sandwich layer due to all rare earth aluminic acid strontium luminescent materials, effectively prevent falling off for rare earth aluminic acid strontium luminescent material, guarantee the light emission luminance of fiber, and improve the water-fastness and wearability of luminescent fibre, the cortex resin excellent using transparency simultaneously, so that the luminescent fibre surface of preparation is smooth, and further improve the illumination effect of luminescent fibre.

Description

A kind of rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure and preparation method thereof
Technical field
The invention belongs to functional fibre technical field, in particular to a kind of rare earth aluminic acid strontium long afterglow with skin-core structure The preparation method of luminescent fibre.
Background technique
RE luminous material is using functional environment-friendly new material made of rare earth luminescent material, is a kind of important light- The energy-saving material of light conversion, i.e. rare earth luminescent material absorb energy from the external world, then by the transition of electronics by the energy of absorption It stores, in the dark continuous illumination.Aluminate class rare earth luminescent material is only needed since quantum conversion rate is up to 90% or more 10 min of daylight or light-illuminating, sustainable 10 h or more that shine are wanted, so, rare earth aluminate is current main commercialization night Luminescent material.
Currently, luminous fiber mainly uses PET, PA or PP for substrate, by adding rare earth luminescent material and some Function additive passes through the luminescent fibre (103361756 A of ZL02112859.6, CN) of spinning preparation, due to rare earth luminescent material Partial size is big, and the fiber of preparation is thicker, and intensity is low, poor toughness, if PET fiber intensity is not as good as the half of common PET fibre strength, It is also easy to produce lousiness, fracture of wire during subsequent applications, and water resistance is poor.Chinese patent CN 1349007A discloses a kind of with poly- Olefin resin is core, and luminescent material and polyolefin resin are the luminescent fibre of the skin-core structure of skin, mechanical property 2.5-3.2 cN/ Dtex, but rare earth luminescent material is in cortex, the shortcomings that making this fiber there are still obvious poor water resistances.Chinese patent CN 1328177A discloses a kind of using the mixture of rare earth elements europium and strontium aluminate as ultraviolet fluorescent material, and hair is made with polyester Light master batch is as sandwich layer, and cortex uses normal polyester, and polyester is easy to crystallize, opaque, influences its illumination effect.
Summary of the invention
The technical problem to be solved by the present invention is to ask for current luminescent fibre there are poor water resistance, mechanical property are low etc. Topic, proposition prepare a kind of rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure, which has water-fastness, wear-resisting, mechanics The good feature of performance, and the material that cortex is excellent using transparency, are obviously improved the illumination effect of luminescent fibre.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure, the rare earth aluminic acid strontium long afterglow hair of the skin-core structure Fiber optics, as mass fraction, sandwich layer account for 70-85%, and cortex accounts for 15-30%；
The sandwich layer of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure is by the component of following weight percentage It is manufactured: rare earth aluminic acid strontium luminescent powder 10 ~ 30%, phosphite ester 0.02-0.05%, antioxidant
0.02-0.2%, silane coupling agent 0.5-1%, surplus are polyamide；
The cortex of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure is gathered using the transparent of addition toughener Methyl methacrylate adds the transparent polycarbonate of toughener or adds the transparent polystyrene resin of toughener, with On the basis of the gross mass of the rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure, the additive amount of toughener is 0.1-0.4%.
The transmitting main peak of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure is at 519 nm, using xenon lamp For excitation light source, 1000 lx of illumination, 10 min of firing time, after stopping 10 s after excitation, brightness values are in 1000-2500mcd/ m2。
The polyamide is polyamide 6 or polyamide 66 resin.
The partial size of the rare earth aluminic acid strontium luminescent powder is less than 1-7 μm.
The antioxidant is that antioxidant 1010 and the 1:1 in mass ratio of antioxidant 168 are mixed.
The toughener is A-608, A-612 or A-662.
The silane coupling agent is KH-560.
Eu in the rare earth aluminic acid strontium luminescent powder2+And Dy3+For activator.
The preparation method of the rare earth aluminic acid strontium long afterglow luminescent fibre, steps are as follows:
(1) shine master batch preparation: being by weight ratio uniformly mixed sandwich layer each component using high-speed mixer, then uses Double screw extruder and Cast Strip pelleter polyamide 6 of the preparation containing rare earth aluminic acid strontium or the luminous master batch of polyamide 66, wherein melting Melting temperature is 240-270oC；
(2) prepared by preoriented yarn: the preoriented yarn of specific skin-core structure is prepared using composite spinning machine, cortex is using addition The transparent polymethyl methacrylate of toughener is added the transparent polycarbonate of toughener or the transparent of toughener is added Polystyrene resin, sandwich layer use step (1) preparation luminous master batch, melting temperature 250-280oC, spinning speed are 1000-3000 m/min；
(3) prepared by luminescent fibre: to the preoriented yarn of step (2) preparation carries out drawing-off, thermal finalization prepares luminescent fibre, Middle drawing temperature is 70-120oC, heat setting temperature 100-160oC, 2-5 times of total draft multiple.
Beneficial effects of the present invention: in the rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure prepared by the present invention, All rare earth aluminic acid strontium luminescent materials are in sandwich layer, effectively prevent falling off for rare earth aluminic acid strontium luminescent material, improve luminous The water-wash resistance and wearability of fiber, and guarantee the light emission luminance of fiber, and the resin that cortex is excellent using transparency, so that system Standby luminescent fibre surface is smooth, and further improves the illumination effect of luminescent fibre.
Specific embodiment
Combined with specific embodiments below, the present invention will be further described.It should be understood that following embodiment is merely to illustrate this The person skilled in the art of the range of invention and is not intended to limit the present invention, the field can make one according to the content of foregoing invention A little nonessential modifications and adaptations.
Embodiment 1
The rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment, as mass fraction, sandwich layer accounts for 70%, Cortex accounts for 30%；Wherein, sandwich layer is made of the raw material of following weight percentage:
PA6 89.46%, rare earth aluminic acid strontium 10%, phosphite ester 0.02%, antioxidant 1010 0.01%, antioxidant 168 0.01%, KH-560 silane coupling agent 0.5%；Cortex is using the polystyrene for accounting for luminescent fibre gross mass 29.6% and accounts for the fibre that shines Tie up the toughener A-662 of gross mass 0.4%.
Steps are as follows for the preparation method of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment:
(1) PA6 shines master batch preparation: PA6 is sliced 89.46%, rare earth aluminic acid strontium 10%, phosphite ester 0.02%, anti-oxidant The mass of agent 1010 and 168 is respectively that 0.01%, KH-560 silane coupling agent 0.5% is uniformly mixed using high-speed mixer, is then used Double screw extruder is 250 oCLower melt blending, cooling granulation；
(2) prepared by preorientation fiber: the PA6 of step (1) preparation shines master batch as sandwich layer and accounts for 70%, polystyrene conduct Cortex accounts for 29.6%, and addition toughener A-662 is 0.4% in cortex, 250 oCIt is lower that specific core-skin knot is prepared using composite spinning machine The preoriented yarn of structure, wherein winding speed is 2000 m/min；
(3) prepared by luminescent fibre: carrying out drawing and heat-setting to preoriented yarn obtained by step (2), wherein drawing temperature 70oC, heat setting temperature 100oC, 4 times of total draft multiple.
3.6 cN/dtex of luminescent fibre intensity prepared by this example, uses xenon lamp for excitation light source, in illumination 1000 10 min are excited under lx, after stopping 10 s after excitation, 1080 mcd/m of brightness values2。
Embodiment 2
The rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment, as mass fraction, sandwich layer accounts for 80%, Cortex accounts for 20%；Wherein, sandwich layer is made of the raw material of following weight percentage:
PA6 79.09%, rare earth aluminic acid strontium 20%, phosphite ester 0.03%, antioxidant 1010 and antioxidant 168 are respectively 0.04%, KH-560 silane coupling agent 0.8%；Cortex using account for luminescent fibre gross mass 19.7% polymethyl methacrylate and Account for the toughener A-608 of luminescent fibre gross mass 0.3%.
Steps are as follows for the preparation method of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment:
(1) PA6 shines master batch preparation: PA6 is sliced 79.09%, rare earth aluminic acid strontium 20%, phosphite ester 0.03%, anti-oxidant The mass of agent 1010 and 168 is respectively that 0.04%, KH-560 silane coupling agent 0.8% is uniformly mixed using high-speed mixer, is then used Double screw extruder is 245 oCLower melt blending, cooling granulation, wherein the quality of all raw materials accounts for the percentage of gross mass；
(2) prepared by preorientation fiber: the PA6 of step (1) preparation shines master batch as sandwich layer and accounts for 80%, polymethylacrylic acid Methyl esters accounts for 19.7% as cortex, and addition toughener A-608 is 0.3% in cortex, 260 oCIt is lower to be had using composite spinning machine preparation The preoriented yarn of body skin-core structure, wherein winding speed is 2500 m/min；
(3) prepared by luminescent fibre: carrying out drawing and heat-setting to preoriented yarn obtained by step (2), wherein drawing temperature 90oC, heat setting temperature 110oC, 3 times of total draft multiple.
3.4 cN/dtex of luminescent fibre intensity prepared by this example, uses xenon lamp for excitation light source, in illumination 1000 10 min are excited under lx, after stopping 10 s after excitation, 1420 mcd/m of brightness values2。
Embodiment 3
The rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment, as mass fraction, sandwich layer accounts for 85%, Cortex accounts for 15%；Wherein, sandwich layer is made of the raw material of following weight percentage:
PA6 68.8%, rare earth aluminic acid strontium 30%, phosphite ester 0.04%, antioxidant 1010 and antioxidant 168 are respectively 0.08%, KH-560 silane coupling agent 1%；Cortex is using the polycarbonate for accounting for luminescent fibre gross mass 14.8% and accounts for luminescent fibre The toughener A-612 of gross mass 0.2%.
Steps are as follows for the preparation method of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment:
(1) PA6 shines master batch preparation: PA6 is sliced 68.8%, rare earth aluminic acid strontium 30%, phosphite ester 0.04%, anti-oxidant The mass of agent 1010 and 168 is respectively that 0.08%, KH-560 silane coupling agent 1% is uniformly mixed using high-speed mixer, then using double Screw extruder is 240 oCLower melt blending, cooling granulation, wherein the quality of all raw materials accounts for the percentage of gross mass；
(2) prepared by preorientation fiber: the PA6 of step (1) preparation shines master batch as sandwich layer and accounts for 85%, polycarbonate conduct Cortex accounts for 14.8%, and addition toughener A-612 is 0.2% in cortex, 270 oCIt is lower that specific core-skin knot is prepared using composite spinning machine The preoriented yarn of structure, wherein winding speed is 1500 m/min；
(3) prepared by luminescent fibre: carrying out drawing and heat-setting to preoriented yarn obtained by step (2), wherein drawing temperature 100oC, heat setting temperature 120oC, 3.5 times of total draft multiple.
4.2 cN/dtex of luminescent fibre intensity prepared by this example, uses xenon lamp for excitation light source, in illumination 1000 10 min are excited under lx, after stopping 10 s after excitation, 1950 mcd/m of brightness values2。
Embodiment 4
The rare earth aluminic acid strontium long afterglow luminescent fibre of the present embodiment, as mass fraction, sandwich layer accounts for 75%, and cortex accounts for 25%； Wherein, sandwich layer is made of the raw material of following weight percentage:
PA66 84.36%, rare earth aluminic acid strontium 15%, phosphite ester 0.02%, antioxidant 1010 and antioxidant 168 are respectively 0.01%, KH-560 silane coupling agent 0.6%；Cortex is using the polystyrene for accounting for luminescent fibre gross mass 24.7% and accounts for the fibre that shines Tie up the toughener A-662 of gross mass 0.3%.
Steps are as follows for the preparation method of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment:
(1) PA66 the luminous master batch preparation of PA66: is sliced 84.36%, rare earth aluminic acid strontium 15%, phosphite ester 0.02%, antioxygen The mass of agent 1010 and 168 is respectively that 0.01%, KH-560 silane coupling agent 0.6% is uniformly mixed using high-speed mixer, is then adopted With double screw extruder 270 oCLower melt blending, cooling granulation, wherein the quality of all raw materials accounts for the percentage of gross mass Number；
(2) prepared by preorientation fiber: the PA66 of step (1) preparation shines master batch as sandwich layer and accounts for 75%, polystyrene conduct Cortex accounts for 24.7%, and addition toughener A-662 is 0.3% in cortex, 270 oCIt is lower that specific core-skin knot is prepared using composite spinning machine The preoriented yarn of structure, wherein winding speed is 1000 m/min；
(3) prepared by luminescent fibre: carrying out drawing and heat-setting to preoriented yarn obtained by step (2), wherein drawing temperature 105oC, heat setting temperature 140oC, 5 times of total draft multiple.
3.1 cN/dtex of luminescent fibre intensity prepared by this example, uses xenon lamp for excitation light source, in illumination 1000 10 min are excited under lx, after stopping 10 s after excitation, 1260 mcd/m of brightness values2。
Embodiment 5
The rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment, as mass fraction, sandwich layer accounts for 80%, Cortex accounts for 20%；Wherein, sandwich layer is made of the raw material of following weight percentage:
PA66 73.94%, rare earth aluminic acid strontium 25%, phosphite ester 0.04%, antioxidant 1010 and antioxidant 168 are respectively 0.06%, KH-560 silane coupling agent 0.9%；Cortex using account for luminescent fibre gross mass 19.7% polymethyl methacrylate and Account for the toughener A-608 of luminescent fibre gross mass 0.3%.
Steps are as follows for the preparation method of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment:
(1) PA66 the luminous master batch preparation of PA66: is sliced 73.94%, rare earth aluminic acid strontium 25%, phosphite ester 0.04%, antioxygen The mass of agent 1010 and 168 is respectively that 0.06%, KH-560 silane coupling agent 0.9% is uniformly mixed using high-speed mixer, is then adopted With double screw extruder 260 oCLower melt blending, cooling granulation, wherein the quality of all raw materials accounts for the percentage of gross mass Number；
(2) prepared by preorientation fiber: the PA66 of step (1) preparation shines master batch as sandwich layer and accounts for 80%, polymethylacrylic acid Methyl esters accounts for 19.7% as cortex, and addition toughener A-608 is 0.3% in cortex, 265 oCIt is lower to be had using composite spinning machine preparation The preoriented yarn of body skin-core structure, wherein winding speed is 1500 m/min；
(3) prepared by luminescent fibre: carrying out drawing and heat-setting to preoriented yarn obtained by step (2), wherein drawing temperature 110oC, heat setting temperature 160oC, 2 times of total draft multiple.
3.5 cN/dtex of luminescent fibre intensity prepared by this example, uses xenon lamp for excitation light source, in illumination 1000 10 min are excited under lx, after stopping 10 s after excitation, 1640 mcd/m of brightness values2。
Embodiment 6
The rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment, as mass fraction, sandwich layer accounts for 85%, Cortex accounts for 15%；Wherein, sandwich layer is made of the raw material of following weight percentage:
PA66 68.75%, rare earth aluminic acid strontium 30%, phosphite ester 0.05%, antioxidant 1010 and antioxidant 168 are respectively 0.1%, KH-560 silane coupling agent 1%；Cortex is using the polycarbonate for accounting for luminescent fibre gross mass 14.9% and to account for luminescent fibre total The toughener A-612 of quality 0.1%.
Steps are as follows for the preparation method of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure of the present embodiment:
(1) PA66 the luminous master batch preparation of PA66: is sliced 68.75%, rare earth aluminic acid strontium 30%, phosphite ester 0.05%, antioxygen The mass of agent 1010 and 168 is respectively that 0.1%, KH-560 silane coupling agent 1% is uniformly mixed using high-speed mixer, then using double Screw extruder is 260 oCLower melt blending, cooling granulation, wherein the quality of all raw materials accounts for the percentage of gross mass.
(2) prepared by preorientation fiber: the PA66 of step (1) preparation shines master batch as sandwich layer and accounts for 85%, polycarbonate conduct Cortex accounts for 14.9%, and addition toughener A-612 is 0.1% in cortex, 280 oCIt is lower that specific core-skin knot is prepared using composite spinning machine The preoriented yarn of structure, wherein winding speed is 3000 m/min；
(3) prepared by luminescent fibre: carrying out drawing and heat-setting to preoriented yarn obtained by step (2), wherein drawing temperature 120oC, heat setting temperature 180oC, 2.5 times of total draft multiple.
4.4 cN/dtex of luminescent fibre intensity prepared by this example, uses xenon lamp for excitation light source, in illumination 1000 10 min are excited under lx, after stopping 10 s after excitation, 2180 mcd/m of brightness values2。
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and Its equivalent thereof.

Claims (7)

1. a kind of rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure, it is characterised in that: the rare earth aluminic acid of the skin-core structure Strontium long afterglow luminescent fibre, as mass fraction, sandwich layer account for 70-85%, and cortex accounts for 15-30%；The rare earth aluminium of the skin-core structure The sandwich layer of sour strontium long afterglow luminescent fibre is made of the component of following weight percentage: rare earth aluminic acid strontium luminescent powder 10 ~ 30%, phosphite ester 0.02-0.05%, antioxidant 0.02-0.2%, silane coupling agent 0.5-1%, surplus are polyamide；Institute The cortex stated using addition toughener transparent polymethyl methacrylate or add toughener transparent polycarbonate or The transparent polystyrene resin of toughener is added, the gross mass with the rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure is Benchmark, the additive amount of toughener are 0.1-0.4%；
For the transmitting main peak of the rare earth aluminic acid strontium long afterglow luminescent fibre of the skin-core structure at 519 nm, it is sharp for using xenon lamp Light emitting source, 1000 lx of illumination, 10 min of firing time, after stopping 10 s after excitation, brightness values are in 1000-2500mcd/m2。
2. the rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure according to claim 1, it is characterised in that: described Polyamide is polyamide 6 or polyamide 66 resin.
3. the rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure according to claim 1, it is characterised in that: described dilute The partial size of native strontium aluminate luminescent powder is less than 1 μm.
4. the rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure according to claim 1, it is characterised in that: described Antioxidant is that antioxidant 1010 and the 1:1 in mass ratio of antioxidant 168 are mixed.
5. the rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure according to claim 1, it is characterised in that: described Toughener is A-608, A-612 or A-662.
6. the rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure according to claim 1, it is characterised in that: described Silane coupling agent is KH-560.
7. the preparation method of any rare earth aluminic acid strontium long afterglow luminescent fibre according to claim 1 ~ 6, it is characterised in that Steps are as follows:
(1) shine master batch preparation: being by weight ratio uniformly mixed sandwich layer each component using high-speed mixer, then using double spiral shells Bar extruder and Cast Strip pelleter polyamide 6 of the preparation containing rare earth aluminic acid strontium or the luminous master batch of polyamide 66, wherein melting temperature Degree is 240-270oC；
(2) prepared by preoriented yarn: the preoriented yarn of specific skin-core structure is prepared using composite spinning machine, cortex is using addition toughening The transparent polymethyl methacrylate of agent or the transparent polycarbonate of addition toughener or the transparent of addition toughener gather Styrene resin, sandwich layer use the luminous master batch of step (1) preparation, melting temperature 250-280oC, spinning speed 1000- 3000 m/min；
(3) prepared by luminescent fibre: to the preoriented yarn of step (2) preparation carries out drawing-off, thermal finalization prepares luminescent fibre, wherein leading Stretching temperature is 70-120oC, heat setting temperature 100-160oC, 2-5 times of total draft multiple.
CN201610896731.8A 2016-10-14 2016-10-14 A kind of rare earth aluminic acid strontium long afterglow luminescent fibre of skin-core structure and preparation method thereof Active CN106480525B (en)

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