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Rare-earth silicate blue long-afterglow light-emitting polypropylene fiber and preparation process thereof

A long afterglow, rare earth technology, applied in textile products and fields, can solve the problems of rare earth aluminate luminous fiber application limitations, single luminous color, and affecting luminous efficiency, etc., to ensure continuous spinnability, low preparation cost, and escape probability small effect

Inactive Publication Date: 2012-06-13
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commercially produced luminescent fibers are mainly rare earth aluminate luminescent fibers, which have good long afterglow properties and relatively stable chemical properties, but their disadvantages are also obvious: poor water resistance, relatively single luminous color, and poor sensitivity to luminescent particles. The secondary treatment (such as surface coating) increases the cost and affects the luminous efficiency
Therefore, the application of rare earth aluminate luminous fiber is greatly restricted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] After drying the polypropylene slices at 100°C for 19 hours, add rare earth magnesium strontium silicate luminescent powder in a proportion of 30wt%, and then add flow stabilizer fatty acid monoglyceride 0.03%, oxidation stabilizer phosphorous acid 0.04% triphenyl ester, 0.05% anti-ultraviolet agent benzotriazole, 0.04% crosslinking agent trimethylolpropane trimethacrylate, 0.3% dispersant barium stearate, and then melted at a temperature of 200°C, Tape casting, pelletizing, and making masterbatch, in which the additives composed of flow stabilizer, oxidation stabilizer, anti-ultraviolet agent and cross-linking agent are nano-scale;

[0014] The above-mentioned luminous masterbatch and polypropylene slices were formulated into spinning raw materials at a mass ratio of 1:3, and after drying at a temperature of 100°C for 19 hours, they were melted in a screw extruder at a melting temperature of 260°C. Spinning and winding at a winding speed of 2900 m / min to make rare eart...

Embodiment 2

[0016] After drying the polypropylene slices at a temperature of 110°C for 17 hours, add rare earth magnesium strontium silicate luminescent powder in a proportion of 25 wt%, and then add flow stabilizer fatty acid monoglyceride 0.02%, oxidation stabilizer phosphorous acid 0.03% triphenyl ester, 0.03% anti-ultraviolet agent benzotriazole, 0.03% crosslinking agent trimethylolpropane trimethacrylate, 0.2% dispersant barium stearate, and then melt at a temperature of 190°C, Tape casting, pelletizing, and making masterbatch, in which the additives composed of flow stabilizer, oxidation stabilizer, anti-ultraviolet agent and cross-linking agent are nano-scale;

[0017] The above-mentioned luminous masterbatch and polypropylene slices were formulated into spinning raw materials at a mass ratio of 1:3.5. After drying for 17 hours at a temperature of 110°C, the melting temperature was 240°C in a screw extruder. Spinning and winding at a winding speed of 2700 m / min to make rare earth l...

Embodiment 3

[0020] After drying the polypropylene slices for spinning at 120°C for 15 hours, add rare earth magnesium strontium silicate luminescent powder in a proportion of 20wt%, and then add flow stabilizer fatty acid monoglyceride 0.01%, oxidation stability Agent triphenyl phosphite 0.02%, anti-ultraviolet agent benzotriazole 0.01%, crosslinking agent trimethylolpropane trimethacrylate 0.03%, dispersant barium stearate 0.1%, and then at a temperature of 185 ℃ Down-melting, casting, pelletizing to make master batches, in which the additives composed of flow stabilizer, oxidation stabilizer, anti-ultraviolet agent and cross-linking agent are nano-scale;

[0021] The above-mentioned luminescent masterbatch and polypropylene slices were formulated into spinning raw materials at a mass ratio of 1:4. After drying at a temperature of 120°C for 15 hours, the melting temperature of 220°C was used in a screw extruder. Spinning and winding at a winding speed of 2500 m / min to make rare earth lum...

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Abstract

The invention relates to a rare-earth silicate blue long-afterglow fiber and a production method thereof. The fiber is characterized by being composed of 90-96wt% of polypropylene spinning raw material, 3-10wt% of rare earth strontium magnesium silicate light-emitting material and less than 1wt% of nano functional auxiliary agent. The fiber is prepared by the steps of: preparing the raw material into light-emitting master batches, then mixing with polypropylene slices according to a ratio, baking and drying at a certain temperature for a certain time, carrying out spinning and winding utilizing a screw extruder through a specific spinning process to prepare POY (Partially Oriented Yarn), and carrying out elasticity enhancing on the POY to obtain DTY (Draw Textured Yarn) or drawing the POY to obtain FDY(Fully Drawn Yarn). The polypropylene fiber prepared by the method can emit blue afterglow with wavelength of 435-500 nm after being excited by sunlight or fluorescence; the initial intensity of the afterglow is 2-3 cd / m<2> and the afterglow life is up to 10-15 hours; and the light-emitting fiber is nontoxic and harmless, and has no any adverse effects to human bodies and environment.

Description

technical field [0001] The invention relates to the field of textile products and technology, in particular to a rare earth magnesium strontium silicate blue long afterglow polypropylene luminescent fiber and a preparation process thereof. Background technique [0002] Long afterglow luminescent fiber, also known as luminous fiber, is a kind of light-induced energy storage type made of polyester, nylon or polypropylene resin by adding rare earth long afterglow luminescent materials and nano-scale functional additives through special spinning technology. Glowing fibers. The fiber is green, environmentally friendly and energy-saving, and can be widely used in aviation and navigation, defense industry, building decoration, transportation, night work and clothing and other fields. At present, the commercially produced luminescent fibers are mainly rare earth aluminate luminescent fibers, which have good long afterglow properties and relatively stable chemical properties, but th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10C09K11/59D01D5/08D01D1/00
Inventor 罗军葛明桥高大海张开砚
Owner JIANGNAN UNIV
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