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Method for preparing water microcapsule

A technology of microcapsules and wall materials, applied in the field of preparation of water-encapsulated microcapsules

Active Publication Date: 2014-03-12
ENDIAN SCI & TECH DEV OF YUNNAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem that the existing oily wall material in the background technology is used to prepare water-encapsulated microcapsules, the wall material is prone to deterioration and mildew, and the core material, that is, water-embedded Strict, low utilization rate of core material, easy loss of water, short storage time and other problems, and the traditional water-encapsulated microcapsules use urea-formaldehyde prepolymer as the wall material, which is usually used in fertilizers, printing and other fields and has a small scope of application. It is not suitable for industries with high safety and health requirements. The purpose of the present invention is to provide a method for preparing water-wrapped microcapsules. The obtained microcapsules can achieve better pure water embedding effect, and the formed water-wrapped microcapsules It has the characteristics of tight embedding, high utilization rate of core material, not easy to lose water, and long storage time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment proceeds according to the following steps:

[0035] 1) Ingredients

[0036] Weigh 0.1 part of pullulan, 0.5 part of sorbitol, 0.6 part of xylitol, and 50 parts of silicon dioxide, and mix them thoroughly. The mass of the core material (20 parts of water, 28.8 parts of glycerin) in the corresponding proportion is fully mixed and set aside.

[0037] 2) Feeding

[0038] Slowly put the wall material into the granulation fluidized bed. Send the material cart to the corresponding position. The feeding hole is in the "pull open" state.

[0039] 3) Sealing equipment

[0040] Operate the control panel and seal the equipment to form a closed space in the fluidized bed. Adjust the wind force of the induced wind at 25HZ to make the wall material fully boil.

[0041] 4) Inlet

[0042] Turn on the peristaltic pump, adjust the liquid feed rate at 14rpm, so that the liquid is evenly sprayed in the fluidized bed. Adjust the spray gun pressure at 0.3Pa.

[0043...

Embodiment 2

[0047] This embodiment proceeds according to the following steps:

[0048] 1) Ingredients

[0049] Weigh 0.1 part of pullulan, 0.5 part of sorbitol, 0.6 part of xylitol, and 50 parts of silicon dioxide, and mix them thoroughly. The mass of the core material (20 parts of water, 28.8 parts of glycerin) in the corresponding proportion is fully mixed and set aside.

[0050] 2) Feeding

[0051] Slowly put the wall material into the granulation fluidized bed. Send the material cart to the corresponding position. The feeding hole is in the "pull open" state.

[0052] 3) Sealing equipment

[0053] Operate the control panel and seal the equipment to form a closed space in the fluidized bed. Adjust the wind force of the induced wind at 25HZ to make the wall material fully boil.

[0054] 4) Inlet

[0055] Turn on the peristaltic pump, adjust the liquid feed rate at 14rpm, so that the liquid is evenly sprayed in the fluidized bed. Adjust the spray gun pressure at 0.3Pa.

[00...

Embodiment 3

[0060] This embodiment proceeds according to the following steps:

[0061] 1) Ingredients

[0062] Weigh 0.2 parts of pullulan, 0.5 parts of sorbitol, 0.6 parts of xylitol, and 40 parts of silicon dioxide and mix them thoroughly. The corresponding proportions of core materials (20 parts of water and 38.7 parts of glycerin) are fully mixed and set aside.

[0063] 2) Feeding

[0064] Slowly put the wall material into the granulation fluidized bed. Send the material cart to the corresponding position. The feeding hole is in the "pull open" state.

[0065] 3) Sealing equipment

[0066] Operate the control panel and seal the equipment to form a closed space in the fluidized bed. Adjust the wind force of the induced wind at 25HZ to make the wall material fully boil.

[0067] 4) Inlet

[0068] Turn on the peristaltic pump, adjust the liquid feed rate at 14rpm, so that the liquid is evenly sprayed in the fluidized bed. Adjust the spray gun pressure at 0.3Pa.

[0069] 5) co...

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PUM

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Abstract

The invention provides a method for preparing a water microcapsule, in order to overcome the defects that the conventional oil-and-fat wall materials are easy to deteriorate and get mildew when used for preparing the water microcapsule, the core material, i.e., water is not embedded tightly, has low utilization rate, is easy to lose, and cannot be preserved for a long time and the like, and the conventional water microcapsule with urea-formaldehyde prepolymer as the wall materials, is generally applied to chemical fertilizers, printing and other fields, has small application range and is not be suitable for the industry having a high safety and hygienic requirement. The obtained microcapsule can achieve a good pure water embedding effect, and the formed water microcapsule is characterized by tight embedding, high core material utilization rate, un-losable water, long preservation time and the like. The following technical means is adopted, and the steps are as follows: 1) mixing, 2) feeding, 3) equipment sealing, 4) liquid feeding, and 5) collecting.

Description

Technical field [0001] The present invention involves the preparation of microcapsules and specifically involves a method of preparation of water -watery micro -capsule. Background technique [0002] Micro -capsule refers to the use of film formation materials to pocket solids, liquids, or gases in it, forming a tiny container with a diameter of tens of microns to thousands of microns.The material loaded inside the microcapsule is called the core material or the sac heart, and the wall membrane of the external bag is called the wall material or the bag material.There are many classification methods for micro -capsules: from the perspective of the core material, it can be divided into single -core and reviewing microcapsules; from the perspective of wall material structure, it can be divided into single -layer membrane and multi -layer membrane micro capsules;For the inorganic membrane and organic film microcapsules; from the perspective of sex, it can be divided into impervasing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/02
Inventor 何金星代家红孙绍彬
Owner ENDIAN SCI & TECH DEV OF YUNNAN