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Method for preparing inorganic mineralized microcapsules based on droplets obtained by dissolving crystal nuclei in ethanol in water

A technology of ethanol solution and microcapsules, applied in the direction of inorganic chemistry, microcapsule preparations, chemical instruments and methods, etc., to achieve the effects of good repeatability, strong operability and low cost

Active Publication Date: 2016-04-13
宜兴环保产业有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

There is no report on the preparation of inorganic mineralized microcapsules based on the droplets obtained after the crystal nuclei in ethanol are dissolved in water

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  • Method for preparing inorganic mineralized microcapsules based on droplets obtained by dissolving crystal nuclei in ethanol in water
  • Method for preparing inorganic mineralized microcapsules based on droplets obtained by dissolving crystal nuclei in ethanol in water

Examples

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Embodiment 1

[0018] Inject 10μL of saturated sodium carbonate solution (0.38M) into 1mL of vigorously stirred ethanol and stir evenly to form sodium carbonate crystals. At the same time, take 1mL of 0.3M calcium iodide ethanol solution and mix well, then add 2mL of water and shake slightly , the precipitate was centrifuged and washed three times with deionized water, and the precipitate was stored in ethanol at room temperature to obtain calcium carbonate microcapsules ( figure 1 ).

Embodiment 2

[0020] Inject 10 μL of saturated dipotassium hydrogen phosphate solution (4M) into 1 mL of vigorously stirred ethanol, stir well to form crystals of dipotassium hydrogen phosphate, then add 1 mL of 0.7M calcium iodide ethanol solution, mix well, add 2 mL of water, Shake slightly, centrifuge the precipitate and wash it three times with deionized water, and store the precipitate in deionized water at room temperature to obtain calcium phosphate microcapsules ( figure 2 ).

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Abstract

The invention discloses a method for preparing inorganic mineralized microcapsules based on droplets obtained after crystal nuclei in ethanol are dissolved in water. The method is as follows: 1. Sodium carbonate or dipotassium hydrogen phosphate is configured into a saturated aqueous solution, and the saturated solution is injected into the ethanol solution and vigorously stirred for 3 to 12 hours until the crystals of sodium carbonate or dipotassium hydrogen phosphate are evenly distributed in the ethanol ; 2. Dissolve calcium iodide in ethanol to form a calcium iodide-ethanol solution; 3. Take 1-4 mL of ethanol solution of sodium carbonate or dipotassium hydrogen phosphate crystals and mix with 1-4 mL of ethanol solution of calcium iodide , Add 2~10mL of water to form a precipitate; 4. Use natural sedimentation or centrifugation to wash the precipitate to obtain calcium phosphate or calcium carbonate microcapsules. The method is simple, highly repeatable, and has loose requirements on experimental conditions, and can realize drug loading and pH-regulated release.

Description

technical field [0001] The invention relates to a method for preparing inorganic mineralized microcapsules, in particular to a method for preparing inorganic mineralized microcapsules based on droplets obtained after crystal nuclei in ethanol are dissolved in water. Background technique [0002] Due to the various applications of microcapsules, it has attracted widespread attention, such as dyes and perfumes, luminescent hollow materials, chemical microreactors, photocomposite materials, chromatographic separation, drug sustained release, biological functions and environmental pollution control, etc. has significant application potential. Therefore, inventing a preparation method of microcapsules with simple process, good repeatability and high yield has important practical significance. Inorganic mineralized microcapsules have the advantages of low density, high specific surface area, high stability and high permeability. The preparation method includes the template metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/02C01B25/32C01F11/18
CPCB01J13/02C01B25/32C01F11/18
Inventor 韩晓军苏迎春
Owner 宜兴环保产业有限公司
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