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Polymer microsphere as well as preparation method and application thereof

A polymer and microsphere technology, applied in dyeing, textile and papermaking, etc., can solve the problems of poor light fastness and water immersion fastness, structural damage, etc., and achieve good brightness, improved anti-aging performance, light fastness and water fastness. The effect of increasing the degree of

Pending Publication Date: 2021-11-30
烟台明远创意生活科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When exposed to light and oxygen, it is prone to hydrolysis and oxidation, thereby destroying the structure and causing the fading reaction of the dye, resulting in the shortcomings of gardenia yellow dyeing with poor light fastness and water immersion color fastness, which restricts its use in functional textiles. application on
There are no relevant reports on polymer microspheres suitable for adsorption of gardenia yellow dyes

Method used

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  • Polymer microsphere as well as preparation method and application thereof
  • Polymer microsphere as well as preparation method and application thereof
  • Polymer microsphere as well as preparation method and application thereof

Examples

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preparation example Construction

[0034] One aspect of the present invention provides a method for preparing polymer microspheres, the method comprising the following steps:

[0035] (1) Stir and mix silicon-containing methylamine, chloropropene and absolute ethanol, then heat to 40-55°C under nitrogen atmosphere for 24-30h, and then perform vacuum rotary evaporation to remove small molecular low-boiling substances to obtain yellow transparent liquid, then cooled to obtain a white solid, which was washed, recrystallized, vacuum filtered and vacuum dried in sequence to obtain a silicon cationic monomer;

[0036] (2) Add hydrophilic white carbon black to the ethanol aqueous solution, the weight ratio of the hydrophilic white carbon black to the ethanol aqueous solution is 1: (20-50), stir and disperse, and then add silane The coupling agent is heated to 100-120°C for condensing and reflux. The time for condensing and reflux is 2.5-4 hours. After the condensing and reflux is completed, cool to room temperature, s...

Embodiment 1

[0080] (1) When equipped with a stirrer, a thermometer, a reflux condenser (the upper end is equipped with a calcium chloride drying tube) and N 2 Add 11.727g N-(trimethylsilyl) dimethylamine and 22.956g chloropropene in the drying four-necked flask of protective device (the mol ratio of N-(trimethylsilyl) dimethylamine and chloropropene is 1: 3), then add 37.4576g of absolute ethanol, and mix evenly under electric stirring (the ratio of the weight of absolute ethanol to the weight of N-(trimethylsilyl)dimethylamine and chloropropene is 1.08:1) , then feed nitrogen and heat to 45°C for 24 hours under a nitrogen atmosphere, then use a rotary evaporator to carry out rotary evaporation under reduced pressure (the pressure of rotary evaporation is 0.11mPa, the temperature of rotary evaporation is 72°C, and the time of rotary evaporation is 5h) Remove small molecules and low boilers to obtain a yellow transparent liquid, then place it in a freezer to cool to obtain a white solid, w...

Embodiment 2

[0084] (1) When equipped with a stirrer, a thermometer, a reflux condenser (the upper end is equipped with a calcium chloride drying tube) and N 2 Add 11.727g N-(trimethylsilyl) dimethylamine and 20.660g chloropropene in the drying four-necked flask of protective device (the mol ratio of N-(trimethylsilyl) dimethylamine and chloropropene is 1: 2.7), then add 34.0064g of absolute ethanol, and mix evenly under electric stirring (the ratio of the weight of absolute ethanol to the weight of N-(trimethylsilyl)dimethylamine and chloropropene is 1.05:1) , then feed nitrogen and heat to 40°C for 30h under a nitrogen atmosphere, then use a rotary evaporator to carry out rotary evaporation under reduced pressure (the pressure of rotary evaporation is 0.14mpa, the temperature of rotary evaporation is 65°C, and the time of rotary evaporation is 3.5h ) to remove small molecule low boilers to obtain a yellow transparent liquid, then place it in a freezer to cool to obtain a white solid, was...

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Abstract

The invention relates to the technical field of polymer microspheres, and discloses a polymer microsphere as well as a preparation method and application thereof. The method comprises the following steps: (1), stirring and mixing silicon-containing methylamine, chloropropene and absolute ethyl alcohol, then carrying out heating reaction in a nitrogen atmosphere, and then carrying out rotary evaporation, cooling, washing, recrystallization, reduced-pressure suction filtration and vacuum drying to obtain a silicon cationic monomer; (2), adding the hydrophilic white carbon black into an ethanol water solution, performing stirring and dispersing, adding a silane coupling agent in a stirring state, performing heating, carrying out condensation reflux, performing cooling to room temperature, stopping stirring, performing washing, and then performing drying to obtain modified white carbon black; and (3), mixing styrene, N-tert-butyl acrylamide, a silicon cationic monomer, the modified white carbon black, a cross-linking agent and 2, 2'-azo (2-methyl propyl amidine) dihydrochloride, and adding water for reaction. The polymer microsphere prepared by the method can be combined with gardenia yellow dye, so that the anti-aging performance of the dye is greatly improved, and a series of indexes after dyeing are also improved.

Description

technical field [0001] The invention relates to the technical field of polymer microspheres, in particular to a polymer microsphere and its preparation method and application. Background technique [0002] Natural dyes are derived from animals, plants or minerals. They have good environmental compatibility, fast degradation, and antibacterial properties. They are one of the main colorants in the field of ecological textiles. Gardenia yellow has a natural color and high saturation, and is one of the widely used yellow-brown natural dyes. The long-chain structure of gardenia yellow dye contains a large number of conjugated double bonds, so the property of gardenia yellow in aqueous solution is unstable. When exposed to light and oxygen, it is prone to hydrolysis and oxidation, thereby destroying the structure and causing the fading reaction of the dye, resulting in the shortcomings of gardenia yellow dyeing with poor light fastness and water immersion color fastness, which re...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F214/14C08F220/54C08F226/02C08F222/38C08F220/58D06P1/34D06P1/52D06P3/60
CPCC08F212/08D06P1/34D06P1/5207D06P3/6058C08F214/14C08F220/54C08F226/02C08F222/385C08F220/58
Inventor 姜会钰张艳张长城马小强周绚丽
Owner 烟台明远创意生活科技股份有限公司
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