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Preparation method and application of antireflection coating liquid containing raspberry-shaped hierarchical structure latex particles

An anti-reflection coating and hierarchical structure technology, applied in textiles and papermaking, can solve the problems of obvious anti-reflection effect, heat-resistant textile finishing, reducing the reflectivity of substrates, etc., and achieve easy large-scale industrial production and finishing processes. Simple and easy to implement, the effect of reaction conditions is not harsh

Active Publication Date: 2020-12-25
ZHEJIANG KEFENG ORGANIC SILICON CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has obvious selectivity in the wavelength corresponding to the maximum transmittance in the visible light wavelength range, and at wavelengths corresponding to non-maximum transmittance, the anti-reflection rate drops very obviously; and the anti-reflection effect on polyester fabrics has no The anti-reflection effect is obvious on flat substrates
In particular, these patents use latex particles as structural units to construct anti-reflection coating films. Although good results have been achieved, the coating films do not have a hierarchical structure because the latex particles do not have a hierarchical structure.
Literature "Synthesis of Raspberry-Like SiO 2 -TiO 2 Nanoparticles towardAntireflective and Self-Cleaning Coatings" (ACS applied materials and interfaces, 2013, 3, 5282-5290.) found that the "raspberry-like" hierarchical structure SiO formed on the glass surface 2 -TiO 2 Particles reduce the reflectivity of the substrate, but this method cannot be used for heat-labile textile finishing

Method used

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  • Preparation method and application of antireflection coating liquid containing raspberry-shaped hierarchical structure latex particles
  • Preparation method and application of antireflection coating liquid containing raspberry-shaped hierarchical structure latex particles
  • Preparation method and application of antireflection coating liquid containing raspberry-shaped hierarchical structure latex particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Weigh 0.03g of γ-methacryloxypropyltrimethoxysilane and add it to 84.76g of water. After mixing evenly with mechanical stirring, add 10g of methyl methacrylate and 1g of divinylbenzene, mechanically After stirring evenly, put it into a water bath, turn on N 2 After 15 minutes, the temperature was raised to 70°C and kept for 3 hours; after that, 0.08g of potassium persulfate was dissolved in 5g of water and added to the reaction mixture. After 8 hours of reaction, a latex product 1 with a "raspberry-like" hierarchical structure was obtained. The solid content is 11%.

[0050] (2) Weigh 1g of sodium dodecylbenzene sulfonate and add it to 83.94g of water. After mechanical stirring and mixing, add 10g of butyl acrylate to the solution. After mechanical stirring, put it into a water bath to pass N 2 15min, after heating up to 70°C, dissolve 0.06g of potassium persulfate in 5g of water and add it to the above reaction mixture, after reacting for 2.5h, raise the temperatu...

Embodiment 2

[0055] (1) Weigh 0.7g of vinyltriethoxysilane and add it to 74.78g of water. After mechanically stirring and mixing uniformly, add 7.5g of styrene and 0.13g of allyl methacrylate to the solution. After mechanically stirring uniformly, Put into the water bath and pass N 2 After 15 minutes, the temperature was raised to 85° C., and after 3 hours of reaction, 0.06 g of potassium persulfate was dissolved in 5 g of water and added to the above reaction mixture, and the reaction was continued for 8 hours to obtain a latex product 3 with a “raspberry-like” hierarchical structure. The solid content is 10%.

[0056] (2) Weigh 2g of sodium lauryl sulfate and add it to 72.94g of water. After mechanical stirring and mixing, add 20g of isooctyl acrylate to the solution. After mechanical stirring, put it into a water bath to pass N 2 15min, after heating up to 75°C, dissolve 0.06g of potassium persulfate in 5g of water and add it to the above reaction mixture, after reacting for 2.5h, rais...

Embodiment 3

[0058] (1) Weigh 0.06g of sodium lauryl sulfate and 0.14g of isooctylphenyl glycoside and add them to 69.88g of water. After mechanically stirring and mixing evenly, add 1.3g of vinyl tri(methoxy)ethyl alcohol to the solution successively. Oxysilane, 8g of isobornyl acrylate and 0.7g of ethylene glycol dimethacrylate, after mechanical stirring, put into a water bath and pass N 2 15min, heat up to 80°C, and keep warm for 2.5h; then dissolve 0.08g of potassium persulfate in 5g of water and add it to the above reaction mixture, and continue the reaction for 9h to obtain a latex product with a "raspberry-like" hierarchical structure 5 , with a solid content of 12.5%.

[0059] (2) Weigh 0.2g of sodium lauryl sulfate and add it to 69.72g of water. After mechanical stirring and mixing, add 25g of butyl acrylate to the solution. After mechanical stirring, put it into a water bath to pass N 2 15min, after heating up to 80°C, dissolve 0.08g of ammonium persulfate in 5g of water and add...

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Abstract

The invention discloses a preparation method of antireflection coating liquid containing raspberry-shaped hierarchical structure latex particles and application of the antireflection coating liquid topolyester fabrics. The method comprises the steps that a silane coupling agent, water and an selectively-added emulsifier are fully mixed, a monomer 1 and a monomer 2 are added into a mixed solution,after nitrogen is introduced to remove oxygen, heating is carried out for hydrolysis, an initiator is added, and after reacting, raspberry-shaped latex particle aqueous dispersion liquid is obtained;soft latex particle aqueous dispersion liquid is prepared; and the raspberry-shaped latex particle aqueous dispersion liquid and the soft latex particle aqueous dispersion liquid are mixed to obtainthe antireflection coating liquid containing the raspberry-shaped hierarchical structure latex particles. The antireflection coating liquid is finished on the surface of fabric, the raspberry-shaped particles have high glass-transition temperature, the original raspberry shapes can be kept unchanged, a film is formed after the soft latex particles are heated, and the raspberry-shaped latex particles are bonded to the surface of the fabric. Therefore, the coating liquid forms an antireflection coating of a hierarchical structure on the surface of the fabric, the reflectivity of the fabric is reduced, and the apparent color depth of the fabric is improved.

Description

technical field [0001] The invention relates to the field of textile auxiliaries and its preparation, in particular to a preparation method of an anti-reflection coating liquid containing raspberry-like hierarchical structure latex particles and its application on polyester fabrics. Background technique [0002] Polyester fiber (n f =1.73) and air (n 0 = 1.0) the difference in refractive index is large, so that the incident light is largely reflected on the surface of the polyester fiber. Since the reflected light is not selectively absorbed by the dye, colored light cannot be formed, resulting in poor color saturation of the polyester fabric, and it is difficult to present such as dark green, Dark blue, purple red, jet black and other dark colors, especially as the fiber size decreases, the area of ​​the fabric reflective surface increases sharply, and the enhanced reflected light makes the dyed fabric often present a "white" visual effect. At present, the post-finishing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/04D06N3/12
CPCD06N3/042D06N3/12D06N3/0061D06N3/0077D06N3/0036D06N2209/0876
Inventor 李剑浩章云菊翁艳芳熊春贤杨雷沈一峰周青姜建堂
Owner ZHEJIANG KEFENG ORGANIC SILICON CO LTD
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