Rear-earth silicate red long afterglow polyarmide fiber and preparation method thereof

A technology of afterglow polyamide and polyamide, which is applied in the field of rare earth magnesium silicate red long afterglow polyamide luminescent fiber and its preparation technology, which can solve the problems of rare earth aluminate luminous fiber application limitation, single luminous color, and affecting luminous efficiency , to achieve the effect of ensuring continuous spinnability, low preparation cost and small escape probability

Inactive Publication Date: 2013-10-23
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, relativ

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] After drying the polyamide chips at 100°C for 19 hours, add rare earth magnesium silicate luminescent powder in a proportion of 30wt%, and then add flow stabilizer fatty acid monoglyceride 0.03%, oxidation stabilizer triphosphite 0.04% phenyl ester, 0.05% anti-ultraviolet agent benzotriazole, 0.04% crosslinking agent trimethylolpropane trimethacrylate, 0.3% dispersant barium stearate, and then melt and cast at 200°C Tape, pelletize, and make 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 luminescent masterbatch and polyamide chips were formulated into spinning raw materials in a mass ratio of 1:3, and after drying at a temperature of 100°C for 19 hours, the melting temperature was 260°C in a screw extruder. Spinning and winding at a winding speed of 2900 m / min to make rare earth luminescent POY filaments.

Embodiment 2

[0016] After drying the polyamide chips at a temperature of 110°C for 17 hours, add rare earth magnesium silicate luminescent powder in a proportion of 25 wt%, and then add flow stabilizer fatty acid monoglyceride 0.02%, oxidation stabilizer triphosphite 0.03% of phenyl ester, 0.03% of anti-ultraviolet agent benzotriazole, 0.03% of crosslinking agent trimethylolpropane trimethacrylate, 0.2% of dispersant barium stearate, and then melt and cast at 190°C Tape, pelletize, and make 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 luminescent masterbatch and polyamide chips 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 luminous POY filaments.

[0018] ...

Embodiment 3

[0020] After drying the special polyamide chips for spinning at 120°C for 15 hours, add rare earth magnesium silicate luminescent powder in a proportion of 20wt%, and then add flow stabilizer fatty acid monoglyceride 0.01%, oxidation stabilizer 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 ℃ Melting, casting, and pelletizing to make masterbatch, in which the additives composed of flow stabilizer, oxidation stabilizer, anti-ultraviolet agent and crosslinking agent are nano-scale;

[0021] The above-mentioned luminescent masterbatch and polyamide chips are formulated into spinning raw materials at a mass ratio of 1:4, and after drying at a temperature of 120°C for 15 hours, the melting temperature of 220°C in a screw extruder, Spinning and winding at a winding speed of 2500 m / min to make rare earth luminous POY filaments.

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PUM

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Abstract

The invention discloses rear-earth red long afterglow polyarmide fiber and a preparation method thereof. The rear-earth red long afterglow polyarmide fiber is characterized by consisting of the following materials in percentage by weight: 90wt%-96wt% of polyarmide spinning materials, 3wt%-10wt% of rear-earth magnesium silicate luminescent material and less than 1wt% of nanometer functional auxiliaries. The preparation method of the rear-earth red long afterglow polyarmide fiber comprises the following steps of: mixing luminescent master batch prepared from the materials with polyarmide slices in proportion; spinning and winding by utilizing a screw extruder through a special spinning process after drying for a certain time and temperature to prepare POY (Polyester Pre-Oriented Yarn); and texturing the POY to prepare DTY (Draw Textured Yarn) or stretching the POY to prepare FDY (Fully Drawn Yarn). The polyarmide fiber prepared by utilizing the method can emit red afterglow with wavelength of 600nm-750nm after being excited by daylight or fluorescent light, wherein the afterglow initial brightness is 2cd/m<2>/3cd/m<.2>, and the afterglow service life can reach 4 hours to 6 hours. Moreover, the luminescent fiber is non-toxic and harmless, and free of any bad interference to body and environment.

Description

technical field [0001] The invention relates to the field of textile products and technology, in particular to a rare-earth magnesium silicate red long-lasting polyamide light-emitting 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 their disadvanta...

Claims

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Application Information

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IPC IPC(8): D01F6/90D01F1/10C09K11/79
Inventor 罗军高大海葛明桥李永贵
Owner JIANGNAN UNIV
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