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Composite nanoparticle preparation method, composite nanoparticle and sunshade net

A composite nanoparticle and nanoparticle technology is applied in the fields of dye nanoparticles and sunshade nets, and achieves the effects of low cost, improved color fastness to sunlight, and simple preparation method.

Inactive Publication Date: 2018-12-18
JIANGSU HUACHANG YARNS & FABRICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the conditions of use of the sunshade net, its color fastness to sunlight is not lower than grade 5, and its color fastness to washing is not lower than grade 5.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] 2.1 Preparation of composite nanoparticles

[0027] Grind cationic red GTL, alumina and silica nanoparticles with a mass ratio of 1:1:1, and calcinate them at 350°C for 6 hours to obtain nanoparticles; prepare 10mmol / L 3,4-ethylenedioxythiophene monomer dispersion aqueous solution , add the nano-particles that account for 8% of the total amount of the dispersed aqueous solution system into the dispersed aqueous solution, ultrasonically disperse it evenly at a frequency of 25KHz, and add ammonium persulfate and hydrochloric acid with a molar ratio of 1:1 to the mixed solution, ammonium persulfate and The concentration of hydrochloric acid in the dispersion system was 30mmol / L, stirred at room temperature at 300rmp for 6h, the obtained mixed solution was centrifuged, the obtained precipitate was washed 3 times with water, and dried to obtain composite nanoparticles.

[0028] 2.2 Sample preparation

Embodiment 1

[0029] Example 1: 40 parts of polyethylene, 5 parts of polymer polyurethane block copolymer, 2 parts of PET, 1 part of polyvinyl alcohol, 1 part of sodium alginate, 0.1 part of chitosan, 1 part of coupling agent KH-550 , 0.5 parts of stearic acid, 1 part of titanium dioxide, and 4 parts of composite nanoparticles were added to a melt-blown machine for melt-blowing to prepare composite fibers, and a colored sunshade net was prepared with the obtained composite fibers.

Embodiment 2

[0030] Example 2: 50 parts of polyethylene, 10 parts of polymer polyurethane block copolymer, 5 parts of PET, 2 parts of polyvinyl alcohol, 2 parts of sodium alginate, 0.5 parts of chitosan, 3 parts of coupling agent KH-550 , 2 parts of stearic acid, 4 parts of titanium dioxide and 6 parts of composite nanoparticles were added to a melt-blown machine for melt-blowing to prepare composite fibers, and a colored sunshade net was prepared with the obtained composite fibers.

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Abstract

The invention discloses a composite nanoparticle preparation method and a composite nanoparticle prepared therethrough. The composite nanoparticle preparation method comprises the following steps: (1)grinding cationic red GTL, alumina and silica nanoparticles, and performing calcination at a high temperature to obtain nanoparticles; (2) dispersing a 3,4-ethylenedioxythiophene monomer in an aqueous solution, adding the nanoparticles to the obtained dispersed aqueous solution, and adding ammonium persulfate and hydrochloric acid to the obtained mixed solution; and (3) centrifuging the mixed solution, washing the obtained precipitate, and drying the washed precipitate to obtain the composite nanoparticle. The composite nanoparticle is applied to fibers, so a produced sunshade net has a highcolor fastness to washing and a high color fastness to sunlight.

Description

technical field [0001] The invention relates to an additive used in a sunshade net for agricultural planting and a sunshade net, in particular to dye nano particles used in the sunshade net and the sunshade net. Background technique [0002] The colored sunshade net can specifically change the radiation spectrum to improve the photosynthetic characteristics of crops, and increase the scattered light to improve the lighting conditions of crops and regulate the growth of plants. In addition, because insects tend to avoid certain colors, the colored sunshade net also has a certain insect-proof function in theory. However, due to the conditions of use of the sunshade net, its color fastness to sunlight is not lower than grade 5, and its color fastness to washing is not lower than grade 5. The color fastness to washing is related to the force between the dye and the fiber and the solubility in water. When an insoluble substance is formed between the dye and the fiber, the color ...

Claims

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Application Information

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IPC IPC(8): D01F1/06D01F1/10D01F8/06D01F8/16A01G13/02
CPCA01G13/0206D01F1/06D01F1/10D01F8/06D01F8/16
Inventor 李俊叶咏梅
Owner JIANGSU HUACHANG YARNS & FABRICS CO LTD
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