Preparation method of nanoparticles and application thereof

A nanoparticle and particle size technology, applied in grain processing, etc., can solve problems such as unstable shelf life of finished products, complex nanoparticle process, etc., achieve excellent anti-sag ability, wide application range, and solve unstable effects

Inactive Publication Date: 2020-12-01
珠海市瑞龙水墨有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved in one aspect of the present invention is to provide a method for preparing nanoparticles, which solves the technical problems of complex preparation of nanoparticles in the prior art, unstable finished products and short shelf life, and realizes high stability of finished products and long shelf life. Technical effect of long and simplified process

Method used

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  • Preparation method of nanoparticles and application thereof
  • Preparation method of nanoparticles and application thereof

Examples

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Embodiment 1

[0033] The user operates according to a method for preparing nanoparticles proposed by the present invention, wherein the user uses an inorganic black pigment as the raw material of this embodiment, first, prepares the following components in weight percentages:

[0034]

[0035] In this example, the dispersant used is Tego 740 water-based dispersant from Germany, the polyamide wax is Changxing Xiehe, and the lithium magnesium silicate is Guangzhou Shengxin Chemical. There are many types of water-based pigments that can be used, including domestic The imported ones can also be used.

[0036] Then follow the steps below:

[0037] (1) Coarse grinding: use a dispersion cylinder for grinding,

[0038] A. Put 14Kg dispersant and 45Kg water into the dispersing tank and stir for 20 minutes. In this embodiment, German Digo 740 water-based dispersant is used. The dispersant has electrostatic shielding effect and steric hindrance effect, which can prevent agglomeration , to maintai...

Embodiment 2

[0058] The preparation method of embodiment 2 is identical with embodiment 1, and difference is only in the present embodiment, and the raw material that we adopt is cocoa powder, and, the weight proportion of each component, altogether 20Kg, is as follows:

[0059]

[0060] We measured d(0.1) as 0.035um, d(0.5) as 0.068um, and d(0.9) as 0.098um by Malvern particle size analyzer (model: MASTERSIZER 2000).

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Abstract

The invention discloses a preparation method of nanoparticles. The preparation method comprises the following steps of (1) raw material preparation, specifically, a main material, a dispersing agent,polyamide wax, lithium magnesium silicate and water are prepared; (2) rough grinding, specifically, the raw materials are ground to form a crude product which is characterized in that the particle size is smaller than or equal to 3 micrometers; and (S3) fine grinding, specifically, the crude product is continuously ground until the particle size distribution reaches the following standards, a nanoparticle finished product can be obtained, d(0.1) is 0.030 micrometer to 0.060 micrometer, d(0.5) is 0.060 micrometer to 0.090 micrometer, and d(0.9) is 0.090 micrometer to 0.190 micrometer. When grinding operation is conducted, the rough grinding and fine grinding two-step grinding method is selected, when rough grinding operation is conducted, the raw materials are ground to enable the particlesize of each particle to be smaller than 3 micrometers, and then the required nanometer level is achieved through fine grinding operation. The preparation method achieves the beneficial effects that the technology of preparing the nanoparticles is simplified, the stability of the nanoparticles is high, the shelf life of the product is long, and the application range is wide. The preparation methodcan be applied to the fields of food materials, cosmetic materials, pigments and medicines, and is wide in application field.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a method for preparing nanoparticles, especially a method for preparing nanoparticles and applications thereof. Background technique [0002] Nanoparticles refer to microscopic particles of nanometer scale, which are defined as particles smaller than 200nm in at least one dimension, and more stringent requirements are smaller than 100nm. Nanoparticles have many properties different from ordinary particles, and have attracted more and more attention. At the same time, the properties of nanoparticles have been applied to many fields, including food, medicine, cosmetics, and even pigments. In the field of food, such as making chocolate powder, the finer the chocolate powder is, the smoother the taste will be. In the field of pigments, the smaller the particles, the higher the brightness of the paint spraying and the finer the picture quality. [0003] With the cont...

Claims

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Application Information

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IPC IPC(8): B02C21/00B02C23/16
CPCB02C21/00B02C23/16B02C2023/165
Inventor 袁伟袁建穗
Owner 珠海市瑞龙水墨有限公司
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