Benzotriazole compound ultraviolet absorber and its preparation method and application

A technology of benzotriazole and compounds, which is applied in the field of new benzotriazole compounds, can solve the problems of lack of active groups, affecting the anti-ultraviolet durability of fabrics, etc., to improve wearing experience, excellent anti-ultraviolet function, and overcome easy The effect of migration

Active Publication Date: 2020-02-11
EASTERN LIAONING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Benzotriazole UV absorbers have excellent UV protection properties, but their molecular structure lacks active groups, so when they are used in fabric finishing, they greatly affect the UV durability of the finished fabrics.

Method used

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  • Benzotriazole compound ultraviolet absorber and its preparation method and application
  • Benzotriazole compound ultraviolet absorber and its preparation method and application
  • Benzotriazole compound ultraviolet absorber and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 100mL there-necked bottle, add 1.84g cyanuric chloride to 30mL water, fully stir to form a uniform suspension, then slowly dropwise add 6.75g of 2-(2-hydroxyphenyl)-5-aminobenzotriazole in the there-necked bottle For sodium hydroxide solution, the optimal rate of dropping is controlled at 0.5-1ml / min. During the dropping, react at a temperature of 0-5°C for 2 hours, then raise the temperature to 40°C, and react for 2 hours. At a temperature of 80°C, React for 6 hours. After the reaction, cool to room temperature, pour the reaction solution into water, and a yellow solid precipitates out. Let stand, filter with suction, wash with water, ethanol, and acetone, and dry to obtain a light yellow solid powder. Wherein, the sodium hydroxide solution can also be potassium hydroxide solution, sodium bicarbonate solution or sodium carbonate solution, and the acid generated by the dropwise equilibrium reaction;

[0025] Anti-ultraviolet finishing of polyester fabrics:

[0026] Its...

Embodiment 2

[0029] 100mL there-necked bottle, add 1.84g cyanuric chloride to 30mL water, stir well to form a uniform suspension, then slowly add dropwise sodium hydroxide containing 7.17g of 2-(2-hydroxyphenyl)-5-aminobenzotriazole Solution, the best rate of dropping is controlled at 0.5-1ml / min, during the dropping, react at 0-5°C for 2h, then raise the temperature to 60°C, react for 2h, and react at 90°C for 5h, After the reaction, the reaction solution was poured into water, and a yellow solid precipitated out. After standing still, suction filtration, washing with water, ethanol and acetone, and drying, a light yellow solid powder was obtained. Wherein, the sodium hydroxide solution can also be potassium hydroxide solution, sodium bicarbonate solution or sodium carbonate solution, and the acid generated by the dropwise equilibrium reaction;

[0030] Anti-ultraviolet finishing of polyester fabrics:

[0031] The composition of the finishing agent includes light yellow solid powder obta...

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Abstract

The invention provides a benzotriazole compound ultraviolet light absorber as well as a preparation method and application thereof. A molecular formula structure of the ultraviolet light absorber is as shown in the specification. In the formula, R represents -H, -CH3 and -C2H5; and R' represents -H and -OH. The invention further discloses a preparation method of the ultraviolet light absorber and finishing application of the ultraviolet light absorber on a polyester fabric. According to the technical scheme, the novel benzotriazole compound has strong ultraviolet light absorption capacity in a wavelength range of 300-400nm. When being applied to finishing a fabric with an ultraviolet resistant function in the polyester fabric, the ultraviolet light absorber has an excellent ultraviolet resistant function, the polyester fabric is endowed with good hygroscopicity and antistatic property, and the discomfort feeling of polyester clothing which is poor in hygroscopicity and stuffy to wear and easily causes static electricity is changed.

Description

technical field [0001] The application of the present invention relates to a novel benzotriazole compound, its preparation method and application, using the compound as an anti-ultraviolet functional finishing agent for fabrics, and the finishing application of the polyester fabric. Background technique [0002] The destruction of the atmosphere due to pollution has greatly increased the amount of ultraviolet radiation in the sun. Exposure to the ultraviolet environment for a long time will greatly increase the probability of skin lesions. Therefore, ultraviolet protection is becoming more and more important. Among them, the additional ultraviolet protection function of clothing or its fabric is particularly important. In the prior art, there are many kinds of ultraviolet absorbers. The introduction of ultraviolet absorbers can improve the absorption capacity of fabrics to ultraviolet rays and convert ultraviolet energy to low energy levels, thereby reducing or eliminating t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D403/14D06M13/352D06M101/32
CPCC07D403/14D06M13/352D06M2101/32D06M2200/25
Inventor 卢声侯江波
Owner EASTERN LIAONING UNIV
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