High fluorescent flat polyester fiber based on polystyrene and preparation method thereof

A polystyrene and polyester fiber technology, which is applied in fiber processing, fiber chemical characteristics, and single-component polyester rayon, etc., to achieve the effects of simple preparation method, high fluorescence quantum yield, and high brightness

Active Publication Date: 2022-03-25
CHANGSHU POLYESTER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the technical problems of flat polyester fiber with simple and easy operation, high brightness, high refractive reflectance and excellent mechanical properties in the prior art, and provides a polystyrene high fluorescent flat fiber and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of preparation method of 1,7-vinyl-perylene imide derivative is as follows:

[0042] Insertion method of bulky substituent at imide position:

[0043] Add crude product PTCDA-Br in 250mL three-necked flask (0.50g, 0.91mmol) and 1-methyl-2-pyrrolidone (NMP) 15.00mL and the solid was dissolved and stirred at 25°C for 1h. Then add 2-ethylhexylamine (4.5mmol), glacial acetic acid (16mL, 140mmol). Under the protection of nitrogen, the temperature was raised to 85°C, and the reaction was continued for 7h. After the reaction was completed, it was cooled to room temperature, and then 120.00 mL of methanol was added thereto and stirred overnight. After suction filtration, a red solid was obtained, which was dried in vacuum for 24 hours at 85°C, and 1,7-Br-PDI-X was obtained after column chromatography.

[0044] The access method of the double bond substituent at the bay position:

[0045] Take 1,7-Br-PDI-X (77.4mg, 0.10mmol) in a 50mL eggplant-shaped flask, add HP...

Embodiment 2

[0048] A kind of preparation method of 1,7-vinyl-perylene imide derivative is as follows:

[0049] Insertion method of bulky substituent at imide position:

[0050] Add crude product PTCDA-Br in 250mL three-necked flask (0.50g, 0.91mmol) and 1-methyl-2-pyrrolidone (NMP) 15.00mL and the solid was dissolved and stirred at 25°C for 1h. then join (4.5mmol), glacial acetic acid (16mL, 140mmol). Under the protection of nitrogen, the temperature was raised to 85°C, and the reaction was continued for 7h. After the reaction was completed, it was cooled to room temperature, and then 120.00 mL of methanol was added thereto and stirred overnight. After suction filtration, a red solid was obtained, which was dried in vacuum for 24 hours at 85°C, and 1,7-Br-PDI-X was obtained after column chromatography.

[0051] The access method of the double bond substituent at the bay position:

[0052] Take 1,7-Br-PDI-X (77.4mg, 0.10mmol) in a 50mL eggplant-shaped flask, add HPLC grade THF (20m...

Embodiment 3

[0055] A kind of preparation method of 1,7-vinyl-perylene imide derivative is as follows:

[0056] Insertion method of bulky substituent at imide position:

[0057] Add crude product PTCDA-Br in 250mL three-necked flask (0.50g, 0.91mmol) and 1-methyl-2-pyrrolidone (NMP) 15.00mL and the solid was dissolved and stirred at 25°C for 1h. Then add 2-ethylhexylamine (4.5mmol), glacial acetic acid (16mL, 140mmol). Under the protection of nitrogen, the temperature was raised to 85°C, and the reaction was continued for 7h. After the reaction was completed, it was cooled to room temperature, and then 120.00 mL of methanol was added thereto and stirred overnight. After suction filtration, a red solid was obtained, which was dried in vacuum for 24 hours at 85°C, and 1,7-Br-PDI-X was obtained after column chromatography.

[0058] The access method of the double bond substituent at the bay position:

[0059] Take 1,7-Br-PDI-X (77.4mg, 0.10mmol) in a 50mL eggplant-shaped flask, add HP...

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Abstract

The invention relates to a flat polyester fiber based on polystyrene high fluorescent microspheres and a preparation method thereof. When preparing flat polyester fibers, polyester masterbatches mixed with high fluorescent quantum yield polystyrene microspheres and polystyrene are used. Ester blending, melt spinning to obtain flat polyester fibers through flat spinneret micro-holes. The 1,7-vinyl-perylene imide derivative in polystyrene microspheres with high fluorescence quantum yield acts as a cross-linking agent and also makes the microspheres have fluorescence. The flat yarn uses the flat structure of the fiber to produce a mirror reflection effect of light, so that the total amount of reflected light of the fiber is greatly enhanced, and the refractive reflectance reaches the highest, so that the fiber has a strong shining effect. Combining the properties of blended fluorescent microspheres and flat fibers. The invention successfully prepares the polyester fiber with high brightness and high fluorescence quantum yield by mixing polystyrene microspheres with high fluorescence quantum yield into polyester fiber and through flat fiber spinning technology.

Description

technical field [0001] The invention belongs to the technical field of fiber preparation, and relates to a polystyrene-based high-fluorescence flat polyester fiber and a preparation method thereof. Background technique [0002] Fluorescent fibers have attracted much attention because of their functionality to display a specific color of light when illuminated by a specific light. Fluorescent fibers refer to fibers made by blending fluorescent substances with fiber-forming polymers or by chemically combining fluorescent substances with polymer chains. Fluorescent substances generally choose rare earths, small organic molecules, organic polymer fluorescent substances, quantum dots or nano-clusters, etc. The applications of fluorescent fibers mainly include sensors, color displays, luminescent materials, anti-counterfeiting materials and other fields. [0003] At present, the preparation methods of fluorescent fibers can be roughly divided into two categories: one is to add f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10D01D5/253C08F212/08C08F212/34C08F230/08
CPCD01F6/92D01F1/10D01D5/253C08F212/08C08F212/34C08F230/08
Inventor 钱志强孙宾徐建新朱美芳吴志刚纪晓寰陈珈
Owner CHANGSHU POLYESTER
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