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Preparation method of modified nano silicon dioxide anti-ultraviolet super-hydrophobic cellulose fabric

A technology of nano-silica and cellulose fabrics, applied in the direction of light-resistant fibers, liquid-repellent fibers, and fiber treatments, which can solve the problems of inability to apply textile finishing and achieve excellent UV resistance, low cost, and small impact Effect

Active Publication Date: 2020-06-02
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The superhydrophobic silica prepared by this method has no hydrophilic groups and cannot be applied to textile finishing

Method used

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  • Preparation method of modified nano silicon dioxide anti-ultraviolet super-hydrophobic cellulose fabric
  • Preparation method of modified nano silicon dioxide anti-ultraviolet super-hydrophobic cellulose fabric
  • Preparation method of modified nano silicon dioxide anti-ultraviolet super-hydrophobic cellulose fabric

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Embodiment 1

[0025] The invention provides a technical solution: a method for preparing a modified nano-silica anti-ultraviolet superhydrophobic cellulose fabric, wherein the anti-ultraviolet superhydrophobic cellulose fabric fiber includes a cellulose fabric matrix, and the cellulose fabric There are dispersed modified nano-silica particles in the matrix, and the size of the nano-zinc oxide powder is 50-400nm.

[0026] In the present embodiment, the preparation method of modified nano-silica anti-ultraviolet superhydrophobic cellulose fabric is:

[0027] A. 45g of absolute ethanol and 1.5g of TEOS are fully stirred and mixed, respectively added with 0.01mol of diethylenetriamine and methyl acrylate, dripped with aqueous ammonia, and reacted for 4 hours under magnetic stirring at 400rpm to obtain a nano-silica precursor;

[0028] B. Put the nano-silica precursor into the rotary evaporator, continue the reaction at 160°C, 0.09Mpa reduced pressure for 4h, stop the reaction, and prepare the p...

Embodiment 2

[0035] A modified nano silicon dioxide anti-ultraviolet ultra-hydrophobic cellulose fabric is prepared, which includes a cellulose matrix, and the modified nano silicon dioxide particles are dispersed in the cellulose matrix. The size of the nanometer zinc oxide powder is 50-400nm.

[0036] In the present embodiment, the preparation method of modified nano-silica anti-ultraviolet superhydrophobic cellulose fabric is:

[0037] A. 45g of absolute ethanol and 2g of ethyl orthosilicate were fully stirred and mixed, respectively added 0.01mol tetraethylenepentamine and methyl acrylate, dripped ammonia water, and reacted for 4 hours under magnetic stirring at 400rpm to obtain a nano-silicon dioxide precursor ;

[0038] B. Put the nano-silica precursor into a rotary evaporator, continue to react at a temperature of 160 ° C, 0.09Mpa under reduced pressure for 4 hours, stop the reaction, and prepare a polyamino-loaded nano-silica powder, take it out and put it in an oven Bake at 120°...

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Abstract

The invention discloses a preparation method of a modified nano silicon dioxide anti-ultraviolet super-hydrophobic cellulose fabric. The surface of the cellulose fabric is covered with functional nanosilicon dioxide. The preparation method comprises the following steps of taking a silanol salt as a precursor, taking absolute ethyl alcohol as a solvent, adding a polyamino compound and a double-bond ester group or anhydride, preparing silica sol, putting the silica sol into a rotary evaporator for polymerization, so as to obtain an amino-coated nano silicon dioxide particle; enabling the aminonano silicon dioxide to react with long-chain fatty acid in a methanol solution to obtain an amphiphilic nano silicon dioxide powder; and impregnating the cellulose fabric in an amphiphilic silica solution by adopting an impregnation method, and carrying out drying to obtain the silicon dioxide-loaded anti-ultraviolet super-hydrophobic cellulose fabric.

Description

technical field [0001] The invention relates to the technical field of functional nanometer materials and textile materials, in particular to a method for preparing a modified nano silicon dioxide anti-ultraviolet superhydrophobic cellulose fabric. Background technique [0002] Cellulose fiber is a widely used textile material with good hygroscopicity and air permeability. It is mainly used in clothing, home textiles, medical materials and other fields. The functional finishing of cellulose fibers has been the subject of numerous studies in recent years. Nanomaterials can endow many new functions, such as antibacterial and deodorizing, UV protection properties, superhydrophobicity, self-cleaning, photocatalytic degradation and other functions. nano-SiO 2 Not only the particle size is small, but the specific surface area is large, and the surface polarity is large, which is prone to agglomeration and has insufficient affinity for fibers. By physical adsorption, nano-SiO 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/79D06M101/06
CPCD06M11/79D06M2101/06D06M2200/12D06M2200/25
Inventor 张广宇肖瑶王道张伟臧传锋
Owner NANTONG UNIVERSITY