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Nano magnetic ink and preparation method and application thereof

A magnetic ink and nano-magnetic technology, applied in ink, applications, household appliances, etc., can solve the problems of environmental protection and magnetic instability of magnetic ink, and achieve the effect of enhancing dispersion stability, increasing specific surface area, and expanding performance advantages

Inactive Publication Date: 2019-04-05
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to solve the problems of environmental protection and magnetic instability of the current magnetic ink

Method used

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  • Nano magnetic ink and preparation method and application thereof
  • Nano magnetic ink and preparation method and application thereof
  • Nano magnetic ink and preparation method and application thereof

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preparation example Construction

[0052] In order to solve the problem of magnetic instability and easy precipitation of traditional ink, the invention provides a superparamagnetic ink and its preparation method and application.

[0053] In a preferred embodiment, the ink is prepared from the following raw materials and proportions (in parts by weight): 0.5-5 parts of modified (purified) carbon nanotubes, 18-35 parts of ethylene glycol, Ferric chloride hexahydrate (FeCl 3 ·6H 2 O) 5-20 parts, ethylenediamine 4-20 parts, sodium acetate 3-15 parts, ethanol 30-100 parts, deionized water 40-120 parts, water-based polyurethane 10-35 parts, methyl methacrylate 5- 20 parts, 3-13 parts of methyl acrylate, 2-12 parts of butyl acrylate, 1-5 parts of azobisisobutyronitrile, 1-8 parts of polyoxyethylene octylphenol ether-10 (OP-10), liquid 1-8 parts of paraffin, 1-8 parts of polysiloxane. Wherein, the modified (purified) carbon nanotubes are obtained by modifying the multi-walled carbon nanotubes in concentrated nitric...

Embodiment 1

[0069] In this embodiment, the raw materials in parts by weight in the following table are used to prepare magnetic ink.

[0070] Table 2 nanometer magnetic ink raw material ratio table (weight parts)

[0071]

[0072] (1) Weigh 3 parts of multi-walled carbon nanotubes (MWCNTs) into a 100mL beaker, add 10 parts of concentrated nitric acid solution, add 10 parts of deionized water to dilute, place in a 250W ultrasonic cleaner for 30 minutes, and disperse After uniformity, the MWCNTs were placed in a cooling reflux device and refluxed at 60°C for 12 hours to prepare purified MWCNTs; wherein, each part represented 1g;

[0073] (2) Weigh 1 part of purified MWCNTs into a beaker, add 25 parts of ethylene glycol as a dispersant, then seal the mouth of the beaker with a plastic film, place it in an ultrasonic cleaner, and ultrasonicate for 30 minutes in an ice bath environment ;

[0074] (3) 10 parts of FeCl 3 ·6H 2 O was ground into a powder in an agate mortar, and 5 parts of ...

Embodiment 2

[0085] In this embodiment, the raw materials in parts by weight in the following table are used to prepare magnetic ink

[0086] Table 3 nano magnetic ink raw material ratio table (weight parts)

[0087]

[0088] (1) Weigh 1 part of multi-walled carbon nanotubes (MWCNTs) into a 100mL beaker, add 5 parts of concentrated nitric acid solution, add 5 parts of deionized water to dilute, place in a 250W ultrasonic cleaner for 30 minutes, and disperse After uniformity, the MWCNTs were placed in a cooling reflux device and refluxed at 60°C for 12 hours to prepare purified MWCNTs; wherein, each part represented 1g;

[0089] (2) Weigh 0.5 parts of purified MWCNTs into a beaker, add 18 parts of ethylene glycol as a dispersant, then seal the mouth of the beaker with a plastic film, place it in an ultrasonic cleaner, and ultrasonicate for 30 minutes in an ice bath environment ;

[0090] (3) 5 parts of FeCl 3 ·6H 2 O was ground into powder in an agate mortar, and 3 parts of NaAc powd...

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Abstract

The invention relates to nano magnetic ink and a preparation method and application thereof. The nano magnetic ink is characterized by being made from, by weight, 12.5-60 parts of carbon nanotube magnetic pigment, 10-35 parts of waterborne polyurethane, 5-20 parts of a methacrylate, 5-25 parts of an acrylate, and 1-5 parts of an initiator, wherein the carbon nanotube magnetic pigment is made from0.5-5 parts of modified carbon nanotubes, 5-20 parts of ferric trichloride hexahydrate, 3-15 parts of sodium acetate, and 4-20 parts of ethanediamine. The nano magnetic ink helps overcome the defectsthat, for instance, traditional magnetic ink is unstable and precipitates easily; the nano magnetic ink is carbon nanotube-based environment-friendly superparamagnetic ink, has better performance advantages and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of packaging and printing materials, in particular to a nano magnetic ink and its preparation method and application. Background technique [0002] Since water-based ink does not contain or contain a small amount of volatile organic compounds (VOC), it has basically no adverse effects on the health of workers during the printing process, hardly pollutes the atmosphere, and also reduces the toxicity of substances remaining on the surface of printed matter, eliminating the need for production Odor in the workshop and hidden dangers of flammability and explosion, so water-based ink is a green and environmentally friendly printing material with the most application prospects. It has been widely used in cigarette packs, wine, food, beverages, medicines and children's toys. on the packaging print. Special printing ink is a kind of ink with anti-counterfeiting function and special function, including magnetic ink,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/102C09D11/107C09D11/03C09D11/52
CPCC09D11/03C09D11/102C09D11/107C09D11/52
Inventor 周星王晨曦方长青雷婉青王咚
Owner XIAN UNIV OF TECH
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