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Nano-silica-modified composite water-based ink and preparation method thereof

A technology of nano-silica and water-based ink, which is applied in inks, applications, household appliances, etc., can solve the problems of poor effect and insufficient chemical resistance of inks, and achieve low harm to human body, better modification effect, and chemical resistance. Improvement of performance and wear resistance

Active Publication Date: 2015-05-13
长兴艾飞特科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The weak point of this invention is: although added anti-scratch agent, the anti-scratch agent that just adds when preparing can't improve the wear resistance of water-based acrylic resin itself, and the effect is poor, and the chemical resistance of printing ink also has deficiency simultaneously

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Preparation of silane coupling agent modified inorganic nanoparticles

[0020] Mix nano-silica, ethanol, water and γ-methacryloxypropyltrimethoxysilane with a weight ratio of 1:30:5:1, and then reflux in a water bath at 60°C for 8 hours, then drop to At room temperature, the product is centrifuged and washed to obtain silane coupling agent modified inorganic nanoparticles. The particle size of the nano silicon dioxide is 10nm.

[0021] (2) Preparation of nano-silica modified waterborne acrylic resin

[0022] Put 30 parts of water and 1 part of emulsifier into the reactor and heat to 80°C, then change 20 parts of methyl methacrylate, 10 parts of hydroxyethyl methacrylate, and 5 parts of the silane coupling agent obtained in step (1) to Inorganic nanoparticles, 3 parts of polyethylene glycol and 0.25 parts of water-soluble initiator were put into the reactor and stirred evenly. After 0.5 hours of heat preservation, 0.25 parts of water-soluble initiator was added at ...

Embodiment 2

[0036] (1) Preparation of silane coupling agent modified inorganic nanoparticles

[0037] Mix nano-silica, ethanol, water and γ-methacryloxypropyltrimethoxysilane with a weight ratio of 1:50:15:3, and then reflux in a water bath at 60°C for 16 hours, then drop to At room temperature, the product is centrifuged and washed to obtain silane coupling agent modified inorganic nanoparticles. The particle size of the nano silicon dioxide is 20nm.

[0038] (2) Preparation of nano-silica modified waterborne acrylic resin

[0039] Put 60 parts of water and 3 parts of emulsifier into the reactor and heat to 80°C, then modify the inorganic Nanoparticles, 5 parts of polyethylene glycol and 0.5 parts of water-soluble initiator are put into the reactor and stirred evenly. After 1 hour of heat preservation, 0.5 part of water-soluble initiator is added at a uniform speed within 2 hours, and then kept for 8 hours and then filtered to obtain nanometer particles. Silica modified waterborne acr...

Embodiment 3

[0053] (1) Preparation of silane coupling agent modified inorganic nanoparticles

[0054] Mix nano-silica, ethanol, water and γ-methacryloxypropyltrimethoxysilane at a weight ratio of 1:40:10:2, and then reflux in a water bath at 60°C for 12 hours, then drop to At room temperature, the product is centrifuged and washed to obtain silane coupling agent modified inorganic nanoparticles. The particle size of the nano silicon dioxide is 40nm.

[0055] (2) Preparation of nano-silica modified waterborne acrylic resin

[0056]Put 45 parts of water and 2 parts of emulsifier into the reactor and heat to 80°C, then change 27.5 parts of ethyl methacrylate, 15 parts of hydroxypropyl methacrylate, and 7.5 parts of the silane coupling agent obtained in step (1) to Inorganic nanoparticles, 4 parts of polyethylene glycol and 0.4 parts of water-soluble initiator were put into the reactor and stirred evenly. After 1 hour of heat preservation, 0.4 part of water-soluble initiator was added at a ...

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Abstract

The invention relates to the field of water-based ink and discloses nano-silica-modified composite water-based ink. The ink comprises components as follows: nano-silica-modified water-based acrylic resin, water-based polyester resin, water, ethanol, a pigment, an antifoaming agent, a dispersing agent, a leveling agent and a buffering agent. A preparation method of the ink comprises steps as follows: firstly, preparing silane coupling agent modified inorganic nanoparticles from nano-silica, the ethanol, the water and gamma-methacryloxy propyl trimethoxyl silane; then preparing nano-silica-modified water-based acrylic resin from an alkyl acrylate monomer, a hydroxyalkyl acrylate monomer, the silane coupling agent modified inorganic nanoparticles, polyethylene glycol, a water-soluble initiator, an emulsifier and the water; finally, preparing the nano-silica-modified composite water-based ink from the nano-silica-modified water-based acrylic resin, the water-based polyester resin, the water, the ethanol, the pigment, the antifoaming agent, the dispersing agent, the leveling agent and the buffering agent. The water-based ink has excellent wear resistance and chemical resistance.

Description

technical field [0001] The invention relates to the field of water-based ink, in particular to a composite water-based ink modified by nano-silica and a preparation method thereof. Background technique [0002] Water-based ink is an ink made of water as a solvent. It is prepared by combining specific water-based polymer resins, pigments, water and co-solvents through physical and chemical processes. Compared with oily and organic solvent-based inks, water-based inks do not cause a large amount of volatilization of organic solvents, have low toxicity, and have little impact on the health of production workers. Today, as more and more attention is paid to environmental protection and personal health, water-based inks have a huge potential. development prospects. However, since the development of water-based inks is not as mature as that of solvent-based inks, there are deficiencies in many properties. [0003] Authorized announcement number CN 102040884 B, the Chinese invent...

Claims

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Application Information

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IPC IPC(8): C09D11/107C09D11/104C08F292/00
CPCC09D11/104C09D11/107C08F292/00C08F220/18C08F220/1804C08F220/1802
Inventor 杨俊波杨志德
Owner 长兴艾飞特科技股份有限公司
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