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Light-cured film dispersing device and polymer microcapsule preparation method

A light-curing and film-dispersing technology, used in microcapsule preparations, botanical equipment and methods, microsphere preparation, etc., can solve the problems of slow formation and failure of the wall layer, and achieve a wide range of applications, easy equipment operation, and fast curing. and thorough effect

Pending Publication Date: 2022-01-21
XUZHOU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the dispersed phase of the monomer, it is a chemical polymerization process. If the polymerization speed is slow, the formation of the wall layer will be slow, and the droplets will be more likely to coalesce into one, resulting in the failure of the membrane emulsification process.

Method used

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  • Light-cured film dispersing device and polymer microcapsule preparation method
  • Light-cured film dispersing device and polymer microcapsule preparation method
  • Light-cured film dispersing device and polymer microcapsule preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment provides a method for preparing phase-change microcapsules using a light-cured film dispersion device. Dissolve 5.0g of n-tetradecyl alcohol, 0.3g of modified epoxy acrylate, 0.15g of tripropylene glycol diacrylate, and 0.05g of α-hydroxyalkyl aryl ketone in the dark and heat up to 50°C to form a transparent solution as the dispersed phase; the dispersed phase is added For the dispersed phase storage tank 14, the temperature of the dispersed phase in the storage tank is controlled to be 40°C by a temperature sensor or thermometer 18 and a heating plate 19. Configure sodium dodecylbenzenesulfonate ion water with a mass ratio of 1 / 2000 as the continuous phase, and inject it into the continuous phase pipeline through the continuous phase feed / discharge valve 8. By controlling the continuous phase delivery pump 10, the flow rate of the continuous phase is 800 ml / min through the valve 9 and the flow meter 11, and the heat exchanger 7 is regulated to stabilize...

Embodiment 2

[0050] This embodiment provides a method for preparing epoxy resin microcapsules using a light-cured film dispersion device. Dissolve 1g of bisphenol A epoxy resin E51, 0.3g of modified epoxy acrylate, 0.1g of pentaerythritol triacrylate, 0.15g of tripropylene glycol diacrylate, and 0.05g of benzoin dimethyl ether in 10ml of acetone as a dispersed phase; The dispersed phase is added to the dispersed phase storage tank 14. Configure sodium dodecylsulfide ion water with a mass ratio of 1 / 1000 as the continuous phase, and inject it into the continuous phase pipeline through the continuous phase feed / discharge valve 8. By controlling the continuous phase delivery pump 10, the flow rate of the continuous phase is 500 ml / min through the valve 9 and the flow meter 11. Select a stainless steel metal membrane with a thickness of 2 mm and an aperture of 50 μm, open the ultrasonic part of the membrane module 3 and the LED ultraviolet light source arranged in an array in the light curing...

Embodiment 3

[0052] This example provides a method for preparing disperse dye microcapsules using a light-cured film dispersing device. Dissolve 5.0g Cuilan HBF, 2.0g methyl methacrylate, 0.05g 2-hydroxy-4-(2-hydroxyethoxy)-2-methylpropiophenone photoinitiator in 40mL of N,N' - in dimethylformamide as the dispersed phase. Configure a mass ratio of 1 / 1000 carboxymethylcellulose aqueous solution as the continuous phase, and the flow rate of the continuous phase is controlled to be 1000ml / min. A glass microporous membrane with a thickness of 1 mm and a pore size of 100 μm is selected, and the cycle curing time is 60 minutes. The specific process of preparing disperse dye microcapsules is as in Example 3. The laser particle size detection results of microcapsules are as follows: Figure 4 As shown, the average particle size is 32.17μm (d 50 ). The embedding rate was determined to be 48.1% by the solvent extraction method.

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Abstract

The invention discloses a light-cured film dispersing device and a polymer microcapsule preparation method, the light-cured film dispersing device comprises a dispersed phase feeding system, a continuous phase circulating system and a light-curing chamber system, the light-curing chamber system is internally provided with an ultraviolet light source and a pipeline; the continuous phase circulating system comprises a continuous phase pipeline and a treatment chamber, and the treatment chamber is arranged above the light-curing chamber system; one end of the continuous phase pipeline is connected with a pipeline of the light-curing chamber system, and the other end is connected with an inlet of the treatment chamber; the dispersed phase feeding system comprises a dispersed phase storage tank and a gas cylinder, the dispersed phase storage tank and the gas cylinder are connected through a pipeline, the bottom of the dispersed phase storage tank is connected with the membrane component of the treatment chamber through a pipeline, and a check valve is arranged in the pipeline. The device is simple and convenient to operate and wide in application range, and can be used for laboratory preparation and industrial production of various polymer microcapsules.

Description

technical field [0001] The invention relates to the technical field of preparation of microcapsules, in particular to a light-cured film dispersion device and a method for preparing polymer microcapsules. Background technique [0002] Microcapsules refer to micro-containers made of natural or synthetic polymer materials as outer wall materials. Because microcapsules can achieve functions such as protection, isolation, controlled release, and increased material stability, they have been widely used in medicine, life sciences, coatings, daily chemicals, food, biological products, and chemical industries in daily life. [0003] According to the formation mechanism of microcapsules, the traditional preparation methods can be mainly divided into three types of preparation methods: physical method, physicochemical method and chemical method. Wherein the physical method mainly includes spray drying method, spray cooling (or condensation) method, air suspension method, inclusion me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/02B01J19/12C08F222/20C08F283/10C08F120/14C08F112/08C08F2/48C09B67/02A01N25/28A01N47/34
CPCB01J13/02B01J19/123C08F222/1067C08F283/10C08F120/14C08F112/08C09B67/0097A01N25/28A01N47/34C08F222/102C08F222/104C08F2/48
Inventor 王仁丽董黎明于蕾王树臣史小琴蔡可迎朱文友万红日陆梦垚王诗雯朱澍蕊许立衡潘飞曹蓓茜吉大年汤嘉豪
Owner XUZHOU UNIV OF TECH
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