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Anti-ultraviolet radiation lignin-based zinc oxide composite particles and preparation method and application thereof

An anti-ultraviolet radiation, lignin-based technology, which is applied in the field of lignin-based zinc oxide composite particles and its preparation, can solve the problems of weak fabric binding force, limited anti-ultraviolet protection ability, and uneven dispersion, so as to improve adhesion, Improve the performance of anti-ultraviolet radiation, good dispersion effect

Active Publication Date: 2016-09-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to overcome the disadvantages and deficiencies of serious agglomeration, uneven dispersion, weak bonding force with the fabric, and limited anti-ultraviolet protection ability of nano-zinc oxide in the preparation process of the above-mentioned prior art fabric anti-ultraviolet radiation, the primary purpose of the present invention is to provide A lignin-based zinc oxide composite particle for fabric UV protection

Method used

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  • Anti-ultraviolet radiation lignin-based zinc oxide composite particles and preparation method and application thereof
  • Anti-ultraviolet radiation lignin-based zinc oxide composite particles and preparation method and application thereof
  • Anti-ultraviolet radiation lignin-based zinc oxide composite particles and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Take 100g of sodium lignosulfonate solid and dissolve it in water, prepare a solution with a mass percent concentration of 30%, adjust the pH value to 9 with a 20% mass percent concentration of sodium hydroxide solution, heat to 60°C, add 2g of dioxygen Hexacyclic, continue to react for 0.5 hours. Dissolve 15g of sodium monochloroacetate in water to prepare a solution with a mass percent concentration of 10%, and add it to the aforementioned sodium lignosulfonate solution, and react at 60°C for 1 hour. The reaction solution is concentrated and dried to obtain carboxylated Lignosulfonate powder.

[0069] Dissolve a certain amount of carboxylated lignosulfonate powder obtained in the above steps into water to prepare an aqueous solution with a concentration of 20% by mass, and adjust the pH to 12 with a sodium hydroxide solution with a concentration of 20% by mass. 100 g of zinc acetate dihydrate was dissolved in water to obtain an aqueous solution with a concentration o...

Embodiment 2

[0072] Get 100g calcium lignosulfonate solid and dissolve in water, be mixed with the solution that weight percent concentration is 50%, be that the sodium hydroxide solution of 20% mass percent concentration is to adjust pH value to be 12, be heated to 90 ℃, add 10g ethanol, Reaction for 2 hours; 15g of sodium monochloroacetate and 5g of monobromoacetic acid were dissolved in water to prepare a solution with a concentration of 30% by weight and added to the aforementioned calcium lignosulfonate solution, and reacted for 3 hours at 90°C. Carboxylated lignosulfonate powder is obtained after concentration and drying.

[0073] Dissolve a certain amount of carboxylated lignosulfonate powder obtained in the above steps into water to prepare an aqueous solution with a concentration of 40% by mass, and adjust the pH to 14 with sodium hydroxide solution with a concentration of 20% by mass. 80 g of zinc acetate dihydrate was dissolved in water to obtain an aqueous solution with a conce...

Embodiment 3

[0076] Get 70g magnesium lignosulfonate and 30g sulfonated alkali lignin solid to be dissolved in water, be mixed with the solution that mass percentage concentration is 30%, adjust pH value to be 11 with the sodium hydroxide solution that mass percentage concentration is 20%, heat to At 70°C, 4g of acetone was added, and the reaction was continued for 1.5 hours. Dissolve 5g of iodoacetic acid and 10g of dichloroacetic acid in water to prepare a solution with a mass percentage concentration of 30%, and add it to the aforementioned magnesium lignosulfonate and sulfonated alkali lignin solution, react at 80°C for 1.5 hours, and react The solution is concentrated and dried to obtain carboxylated lignosulfonate powder.

[0077] Dissolve a certain amount of carboxylated lignosulfonate powder obtained in the above steps into water to prepare an aqueous solution with a concentration of 30% by mass, and adjust the pH to 13 with sodium hydroxide solution with a concentration of 20% by ...

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Abstract

The invention belongs to the technical field of nanocomposites, and discloses anti-ultraviolet radiation lignin-based zinc oxide composite particles for fabric and a preparation method and application in the fabric of the particles. The preparation method comprises the following steps that 1, pH of a lignin sulfonate aqueous solution is adjusted to be alkaline, heating is conducted, an active agent is added for reacting, a carboxylated reagent is added, an isothermal reaction is conducted, and carboxylated lignin sulfonate is obtained; 2, carboxylated lignin sulfonate prepared in the first step is prepared into an aqueous solution, the pH is adjusted to be alkaline, a zinc salt is added for reacting, reacting is conducted by heating, the pH is adjusted to be 9 to 11, reacting is conducted continuously, a cross-linking agent is added for reacting, cooling, ageing, separating and drying are conducted, and the lignin-based zinc oxide composite particles are obtained. According to the composite particles, agglomeration among nano zinc oxide particles is overcome, the particles are dispersed uniformly, adhesion to fabric fibers is improved, effective protection of UVA and UVB full-wave bands is provided, and the problem that the ultraviolet-protection capacity is limited is solved.

Description

technical field [0001] The invention belongs to the technical field of nanocomposite materials, and in particular relates to a lignin-based zinc oxide composite particle used for preventing ultraviolet radiation of fabrics, a preparation method thereof and an application in fabrics. Background technique [0002] With the development of modern industry and the extensive use of fluorocarbon refrigerants such as Freon, the ozone layer in the atmosphere has been severely damaged, and even local "holes" (such as the Antarctic and the Qinghai-Tibet Plateau) have appeared, resulting in harmful mid-wave radiation in sunlight. Ultraviolet rays (UVB) and long-wave ultraviolet rays (UVA) reach the ground in large quantities, seriously affecting human health. Experts pointed out that long-term exposure to a large amount of ultraviolet radiation can not only induce immune cell mutation, cause skin lesions and even skin cancer, but also increase the incidence of cataracts. Therefore, in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/00C08K3/22D06M11/44D06M15/01D06M101/34
CPCD06M11/44D06M15/01C08K3/22C08K2003/2296D06M2101/34D06M2200/25C08L97/00
Inventor 邱学青杨东杰钟锐生王欢钱勇欧阳新平易聪华
Owner SOUTH CHINA UNIV OF TECH
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