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Preparation of nano pearls powder

A pearl powder and nano-scale technology, which is applied in the field of preparation of nano-scale pearl powder, can solve the problems of low absorption and utilization efficiency and affect the efficacy of pearl powder, and achieve the effects of improving utilization rate, easy industrial production, and simple process

Inactive Publication Date: 2005-02-23
中科纳米技术工程中心有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Disclose the preparation method of soluble pearl powder as in the patent application of CN88105369 and CN1018615 in Chinese Publication No., but this method or dissolves pearl powder with acid, perhaps hydrolyzes under high temperature and pressure, has changed the original structure and composition of pearl, can Affect the efficacy of pearl powder
The Chinese publication number is that CN1351869 and CN1416821 disclose the preparation method of nano-scale pearl powder in the patent application, but the former still needs to dissolve pearl powder with acid earlier, and its method has above-mentioned defect equally; The particle diameter of the pearl powder of the latter gained Distribution is too wide (10 ~ 1000nm), the absorption and utilization efficiency of pearl powder particles with larger particle size is still low

Method used

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  • Preparation of nano pearls powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Wash and dry the pearls with clean water, process them to 300 mesh with high-frequency vibration mill, then mix with deionized water to prepare a 20wt% suspension, set the pressure of the high-pressure homogenizer to 100MPa, add the suspension to To the feeding tank of the high-pressure homogenizer, automatic feeding, the collected and processed suspension is sprayed into a drying room with a temperature of 100°C by means of centrifugal spray drying to obtain pearl powder with a particle size of 50-100nm. Its transmission electron microscope pictures are shown in figure 1 .

Embodiment 2

[0020] After the pearls are washed and dried with clear water, they are processed to 400 mesh by high-frequency vibration mill, and then mixed with deionized water to prepare a 10wt% suspension. The pressure of the high-pressure homogenizer is set to 120MPa, and the suspension is added to To the feeding tank of the high-pressure homogenizer, automatic feeding, the collected and processed suspension is sprayed into a drying room with a temperature of 100°C by means of centrifugal spray drying to obtain pearl powder with a particle size of 50-80nm.

Embodiment 3

[0022] Wash and dry the pearls with clean water, process them to 500 mesh with high-frequency vibration mill, then mix them with deionized water to prepare a 5wt% suspension, set the pressure of the high-pressure homogenizer to 140MPa, add the suspension to To the feeding tank of the high-pressure homogenizer, automatic feeding, the collected and processed suspension is sprayed into a drying room with a temperature of 100°C by means of centrifugal spray drying to obtain pearl powder with a particle size of 50-70nm.

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Abstract

A pearl nanoparticle is prepared from pearl through pulverizing by 300-500 meshes, adding deionized water to obtain suspension, and pulverizing in high-pressure homogenizing machine.

Description

technical field [0001] The invention belongs to the field of preparation methods of superfine pearl powder, in particular to a preparation method of nano-scale pearl powder. Background technique [0002] Pearl is a kind of precious Chinese medicinal material, which has the effects of calming the nerves, calming convulsions, improving eyesight and eliminating cloudiness, detoxifying and promoting muscle growth, and also has the effects of anti-aging, beauty and health care. Modern scientific analysis shows that pearls contain nearly 20 kinds of amino acids, more than 20 kinds of trace elements, porphyrins, vitamins and rich calcium. However, pearls have an organic / inorganic hybrid nanostructure. Two layers of aragonite-structured calcium carbonate sandwich a protein layer with a thickness of several to more than ten nanometers, which makes pearls have high hardness and toughness, and is very easy to process. difficulty. Traditional pearl powder proc...

Claims

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Application Information

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IPC IPC(8): A61K9/14A61K35/618
Inventor 马永梅范家起江雷
Owner 中科纳米技术工程中心有限公司
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