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Method for batch preparation of anisotropic particles by ink-jet printing and anisotropic particles thereof

An inkjet printing, anisotropic technology, applied in the direction of copying/marking method, printing, ink, etc., can solve problems such as difficult batch preparation and complicated process

Inactive Publication Date: 2014-09-24
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above preparation method can realize the preparation of anisotropic particles, there are disadvantages such as complicated process or difficult to realize batch preparation.

Method used

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  • Method for batch preparation of anisotropic particles by ink-jet printing and anisotropic particles thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] At room temperature, the polyvinyl alcohol, polyethylene glycol-diacrylic acid and polyethylene glycol were ultrasonically dispersed in water respectively, and the obtained aqueous dispersion of polyvinyl alcohol with a concentration of 10wt% and a polyethylene glycol with a concentration of 20wt% were obtained. Alcohol-diacrylic acid water dispersion and 30wt% polyethylene glycol water dispersion were used as inkjet printing inks; the obtained inkjet printing inks were loaded into the ink cartridges of three inkjet printers (the inkjet printer’s The aperture of the nozzle is 100μm), and the three kinds of inkjet printing inks are sprayed on the glass sheet (the contact angle with water is 30°) and the polyvinyl acetate film (the contact angle with water). 40°), polyvinyl chloride film (contact angle with water is 55°), polymethyl methacrylate film (contact angle with water is 65°), PET film (contact angle with water is 68°) , Polyethylene film (contact angle with water ...

Embodiment 2

[0051] At room temperature, the polyvinyl alcohol, polyethylene glycol-diacrylic acid and polyethylene glycol were ultrasonically dispersed in water respectively, and the prepared aqueous dispersion of polyvinyl alcohol with a concentration of 10wt% and a polyethylene glycol with a concentration of 20wt% were prepared. Glycol-diacrylic acid aqueous dispersion and 30wt% polyethylene glycol aqueous dispersion were used as inkjet printing inks; the obtained inkjet printing inks were loaded into the ink cartridges of three inkjet printers (inkjet printers). The nozzle diameter of the nozzle is 100μm), and the three kinds of inkjet printing inks are respectively sprayed on the super-hydrophobic and low-adhesive glass sheet (the clean glass sheet is placed in the concentration of 0.8-5wt% SiO 2 Soak in the water dispersion for 1 to 3 minutes to obtain a glass flake with a rough surface, and then place the rough glass flake in a fluorosilane atmosphere at 80°C for 3 to 8 hours. The cont...

Embodiment 3

[0053] At room temperature, the magnetic nanoparticles with a particle size of 20nm Fe 3 O 4 Dispersed into the aqueous dispersions of polyurethane, epoxy resin and polypyrrolidone to obtain a blended liquid with magnetic field responsiveness. The magnetic nanoparticles in the blended liquid Fe 3 O 4 The content of is 1wt%, the content of polyurethane is 20wt%, the balance is water; magnetic nanoparticles Fe 3 O 4 The content of is 8wt%, the content of epoxy resin is 20wt%, the balance is water; magnetic nanoparticles Fe 3 O 4 The content of polypyrrolidone is 15wt%, the content of polypyrrolidone is 20wt%, and the balance is water; the obtained blending liquid is used as inkjet printing ink, and the obtained inkjet printing ink with magnetic field responsiveness is loaded into three inkjet printing inks. In the ink cartridge of the printer (the aperture of the nozzle of the inkjet printer is 150μm). Spray three kinds of inkjet printing inks on silicon wafers with a contact angle...

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Abstract

The invention relates to a method for batch preparation of anisotropic particles by ink-jet printing and anisotropic particles thereof. The method is characterized in that a polymer aqueous dispersion is taken as an ink-jet printing ink for injecting to a solid base material, the formed ink droplet can form annular semispherical particles with different length diameter according to different wellability of solid base materials; or a response functional material is dispersed in the polymer aqueous dispersion, then is injected to the solid base material, and is deformed under the effect of outfield stimulation, so that taper shape or hat shape particles are formed; or the metal nanoparticles or inorganic oxide nanoparticles are dispersed in the polymer aqueous dispersion, then is injected to the solid base material, because that the metal nanoparticles or inorganic oxide nanoparticles are separated with a phase between the polymers, the anisotropic particles which are characterized in that one end of particle is metal nanoparticle or inorganic oxide nanoparticle, and the other end is the polymer. The method has the advantages of simple operation and low cost, and is suitable for large scale preparation of the anisotropic particles.

Description

Technical field [0001] The invention relates to the preparation of anisotropic particles, in particular to a method for preparing anisotropic particles in batches by inkjet printing. Background technique [0002] Different from isotropic particles, anisotropic particles refer to particles whose shape or chemical composition cannot be distributed isotropically. Particles with anisotropic shape include non-spherical particles such as linear particles, square particles, mushroom-headed particles, pear-shaped particles and dumbbell-shaped particles. Anisotropy of chemical composition means that the chemical composition of the two ends of the particle is different, including one end of the particle is metal and the other end is non-metal; or one end is hydrophilic and the other end is hydrophobic; or one end is organic and the other end is inorganic Wait. Anisotropic particles also include particles whose shape and chemical composition cannot be distributed isotropically. [0003] It...

Claims

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Application Information

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IPC IPC(8): C09D11/30B41M5/00
Inventor 王京霞王利彬宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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