Method for preparation of inorganic mineralized microcapsule based on liquid drops obtained by dissolution of ethanol's crystal nucleuses 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: 2015-02-04
宜兴环保产业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Method for preparation of inorganic mineralized microcapsule based on liquid drops obtained by dissolution of ethanol's crystal nucleuses in water
  • Method for preparation of inorganic mineralized microcapsule based on liquid drops obtained by dissolution of ethanol's crystal nucleuses in water

Examples

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Embodiment 1

[0018] Inject 10 μL of saturated sodium carbonate solution (0.38 M) into 1 mL of vigorously stirred ethanol, stir evenly to form sodium carbonate crystals, take 1 mL of 0.3 M calcium iodide ethanol solution, mix well, then add 2 mL of water, gently Shake, centrifuge the precipitate and wash it three times with deionized water, and store the precipitate in ethanol at room temperature to obtain calcium carbonate microcapsules ( figure 1 ).

Embodiment 2

[0020] Inject 10 μL of saturated dipotassium hydrogen phosphate solution (4 M) into 1 mL of vigorously stirred ethanol, stir evenly to form crystals of dipotassium hydrogen phosphate, then add 1 mL of 0.7 M calcium iodide ethanol solution, mix well, add 2mL 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 preparation of an inorganic mineralized microcapsule based on liquid drops obtained by dissolution of ethanol's crystal nucleuses in water. The method includes: 1. preparing sodium carbonate or dipotassium hydrogen phosphate into a saturated water solution, injecting the saturated solution into an ethanol solution and conducting violent stirring for 3-12h till crystals of the sodium carbonate or dipotassium hydrogen phosphate are evenly distributed in ethanol; 2. dissolving calcium iodide in ethanol to make a calcium iodide-ethanol solution; 3. mixing 1-4mL of an ethanol solution of sodium carbonate salt or dipotassium hydrogen phosphate crystals with 1-4mL of an ethanol solution of calcium iodide evenly, and adding 2-10mL of water to form precipitate; and 4. cleaning the precipitate by a natural settling or centrifugation method, thus obtaining the microcapsule of calcium phosphate or calcium carbonate. The method has the advantages of simplicity, strong repeatability, and loose requirements for experimental conditions, and can realize drug loading and pH control 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 Applications(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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