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Inorganic bio-based ultraviolet aging-resistant flame retardant and application thereof in textiles

An anti-photoaging, bio-based technology, applied in the field of flame retardant, can solve the problems of poor heat resistance, low melting point of salicylic acid, and rarely used

Pending Publication Date: 2021-07-30
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Salicylic acid has a low melting point, is volatile, and the absorption band is biased towards the low band, so it is rarely used
Benzophenone series has a reactive group -OH that can be freely controlled, and can ionically bond with fibers, but has poor heat resistance and is sometimes prone to yellowing

Method used

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  • Inorganic bio-based ultraviolet aging-resistant flame retardant and application thereof in textiles
  • Inorganic bio-based ultraviolet aging-resistant flame retardant and application thereof in textiles
  • Inorganic bio-based ultraviolet aging-resistant flame retardant and application thereof in textiles

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Weigh 10g of urea into a crucible, put it into an environment with a heating rate of 10°C / min, raise the temperature to 540°C, and keep it for 5h to obtain g-C 3 N 4 ;According to the mass ratio 1:1000, take g-C respectively 3 N 4 and deionized water, mix, ultrasonic 24h, take supernatant, get g-C 3 N 4 anionic suspension. According to the mass ratio of 1:49, weigh polyethyleneimine and deionized water respectively, mix them, stir at a speed of 400rpm for 12h, add HCl solution with a molar volume concentration of 1mol / L, and obtain polyethyleneimine with a pH value of 8 cationic solution. According to the mass ratio of 1:49, weigh phytic acid and deionized water respectively, mix them, stir at 400 rpm for 12 hours, then add NaOH solution with a molar volume concentration of 1 mol / L to obtain a phytic acid anion solution with a pH value of 7. According to the mass ratio of 1:5:25, respectively take phosphor, polyvinylpyrrolidone and absolute ethanol, mix and stir f...

Embodiment 2

[0029] Weigh 10g of urea into a crucible, put it into an environment with a heating rate of 10°C / min, raise the temperature to 550°C, and keep it for 6 hours to obtain g-C 3 N 4 ; According to the mass ratio 2: 1000, take g-C respectively 3 N 4 and deionized water, mix, ultrasonic 24h, take supernatant, get g-C 3 N 4 Anionic suspension: According to the mass ratio of 2:49, take polyethyleneimine and deionized water respectively, mix them, stir at a speed of 500rpm for 12h, add HCl solution with a molar volume concentration of 1mol / L, and obtain polyethylene with a pH of 7 imine cation solution. According to the mass ratio of 2:49, take phytic acid and deionized water respectively, mix them, stir at 450 rpm for 12 hours, then add 1 mol / L NaOH solution to obtain a phytic acid anion solution with a pH of 7. According to the mass ratio of 1:5:25, respectively take phosphor, polyvinylpyrrolidone and absolute ethanol, mix and stir for 24 hours to obtain a coating solution;

[...

Embodiment 3

[0032] Weigh 10g of urea in a crucible, put it into an environment with a heating rate of 10°C / min, raise the temperature to 545°C, and keep it for 5.5h to obtain g-C 3 N 4 ; According to the mass ratio of 1.5: 1000, take g-C respectively 3 N 4 and deionized water, mix, ultrasonic 24h, take supernatant, get g-C 3 N 4 anionic suspension. According to the mass ratio of 1.5︰49, take polyethyleneimine and deionized water respectively, mix them, stir at a speed of 450rpm for 18h, add HCl solution with a molar volume concentration of 1mol / L, and obtain a polyethyleneimine cationic solution with a pH of 7.5 . According to the mass ratio of 1.5:49, take phytic acid and deionized water respectively, mix them, stir at 500 rpm for 18 hours, then add NaOH solution with a molar volume concentration of 1 mol / L to obtain a phytic acid anion solution with a pH of 6.5. According to the mass ratio of 1:5:25, respectively take phosphor powder, polyvinylpyrrolidone and absolute ethanol, mix...

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Abstract

The invention discloses an inorganic bio-based ultraviolet aging-resistant flame retardant and application thereof in textiles. The flame retardant comprises a g-C3N4 anion suspension solution prepared from urea, a polyethyleneimine cation solution prepared from polyethyleneimine and deionized water, and a phytic acid anion solution prepared from phytic acid and deionized water. Fluorescent powder, polyvinylpyrrolidone and absolute ethyl alcohol are mixed, and stirring is performed to obtain a coating solution; and a cotton fabric is alternately soaked in the polyethyleneimine cation solution and the g-C3N4 anion solution and then is alternately soaked in the polyethyleneimine cation solution and the phytic acid anion solution, then the coating solution is uniformly applied, and drying is performed to obtain an ultraviolet aging-resistant and flame-retardant cotton fabric. According to the flame retardant, an inorganic bio-based hybrid self-assembly coating is constructed, so that the afterflame of a polyester-cotton fabric is effectively inhibited, and the char forming capacity of the cotton fabric is improved. Ultraviolet rays are effectively absorbed through the fluorescent powder, so that the ultraviolet aging resistance of the fabric is enhanced.

Description

technical field [0001] The invention belongs to the field of flame retardant technology, and relates to an inorganic-biological base anti-light aging flame retardant; the invention also relates to an application of the flame retardant in textiles. Background technique [0002] Cotton fabric is deeply loved by consumers because of its moisture absorption, breathability, antistatic, comfortable wearing, soft touch and other excellent properties and low price, and the market prospect is very broad. However, cotton textiles are extremely flammable, which is a serious hazard to human health and safety, and is prone to aging under light radiation conditions, which greatly reduces their wearability. Therefore, it is particularly important to improve the flame retardancy and anti-aging properties of cotton fabrics. [0003] In the prior art, methods for improving the flame-retardant and anti-aging properties of fabrics are usually flame-retardant finishing and the use of organic ul...

Claims

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Application Information

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IPC IPC(8): D06M15/61D06M11/58D06M13/292D06N3/04D06N3/00D06M101/06
CPCD06M15/61D06M11/58D06M13/292D06N3/04D06N3/0063D06N3/0088D06N3/0077D06N3/0015D06M2101/06D06M2200/30
Inventor 王育华马忠英王晨霖曹雅欣
Owner LANZHOU UNIVERSITY
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