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Device for preparing light-cured water-carrying capsule and preparation method of light-cured water-carrying capsule

A light-curing device and light-curing technology, applied in microcapsule preparations, microsphere preparation, etc., can solve the problems of incomplete curing, uncontrollable droplet falling speed, and difficult to control the sphericity of water-carrying capsules, and improve concentricity. degree and sphericity, the effect of high water-carrying capacity

Pending Publication Date: 2022-05-27
湖北特斯特乐新材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Application number CN201910618136.1 uses coaxial drop molding to prepare multi-layer UV light-curable water-carrying capsules with light-curable resin as the wall material, but when the droplets fall on the surface of the protective liquid, they will be impacted by the liquid surface And deformation occurs, which makes it difficult to control the sphericity of the water-carrying capsule, and the speed of the droplet falling cannot be controlled, and the light curing time is difficult to be guaranteed, which may easily cause the problem of incomplete curing.

Method used

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  • Device for preparing light-cured water-carrying capsule and preparation method of light-cured water-carrying capsule
  • Device for preparing light-cured water-carrying capsule and preparation method of light-cured water-carrying capsule
  • Device for preparing light-cured water-carrying capsule and preparation method of light-cured water-carrying capsule

Examples

Experimental program
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Effect test

Embodiment 1

[0070] The water-carrying capsules were prepared by the millifluidic method, and the millifluidic method was image 3 shown.

[0071] Using the aqueous solution of 1wt% Tween 80 as the inner phase, pumped by the inner phase pump 1, the flow rate is set to 0.20mL / min, and squeezed from the inner layer outlet 4 (inner diameter 0.67mm, outer diameter 1.07mm) of the three-layer coaxial needle 7 out;

[0072] 82% urethane acrylate prepolymer, 15% hydroxyethyl methacrylate, 3% diphenyl-(2,4,6-trimethylbenzoyl) oxyphosphorus as the mesophase (mesophase viscosity 1000mPa· s, 25°C), pumped by the mesophase pump 2, the flow rate is set to 0.04mL / min, and extruded from the middle outlet 5 (inner diameter 1.6mm, outer diameter 2.1mm) of the three-layer coaxial needle; with 3wt% polyethylene The alcohol solution (viscosity 100mPa·s) is the external phase, pumped by the external phase pump 3, the flow rate is set to 8mL / min, inhaled from the collector 8, from the three-layer coaxial needl...

Embodiment 2

[0075] The water-carrying capsules were prepared by the millifluidic method, and the millifluidic method was Figure 3-5 shown.

[0076] Take water as the inner phase, pump through the inner phase pump 1, the flow rate is set to 0.20mL / min, and extrude from the inner layer outlet 4 (inner diameter 0.67mm, outer diameter 1.07mm) of the three-layer coaxial needle 7; with 97% polyurethane Acrylate prepolymer (viscosity 14000mPa s, 25℃), 3% diphenyl-(2,4,6-trimethylbenzoyl) oxyphosphorus as mesophase, pumped by mesophase pump 2, flow rate Set to 0.04mL / min, extrude from the middle outlet 5 of the three-layer coaxial needle (inner diameter 1.6mm, outer diameter 2.1mm); take 3wt% polyvinyl alcohol solution (viscosity 100mPa·s) as the external phase, through the external phase pump 3 Pumping, the flow rate is set to 8 mL / min, sucked from the collector 8, and extruded from the outer layer outlet 6 of the three-layer coaxial needle (inner diameter 3mm, outer diameter 3.5mm). The thre...

Embodiment 3

[0078] Same as Example 1, the difference is that 95wt% epoxy acrylate prepolymer (viscosity 10000mPa s, 25°C), 5wt% diphenyl-(2,4,6-trimethylbenzoyl) ) oxyphosphorus as an intermediate phase.

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Abstract

The invention provides a device for preparing a photocuring water-carrying capsule, which comprises a three-layer coaxial needle head (7) and a forming pipe (11), one end of the three-layer coaxial needle head is vertically connected with one end of the forming pipe, so that substances extruded from the three-layer coaxial needle head are further subjected to forming reaction in the forming pipe; the three-layer coaxial needle head comprises an inner-phase pump (1), a middle-phase pump (2), an outer-phase pump (3), an inner-layer needle head (4), a middle-layer needle head (5) and an outer-layer needle head (6), the inner-layer needle head is arranged on the innermost layer, the middle-layer needle head is arranged on the outer layer of the inner-layer needle head in a sleeving mode, the outer-layer needle head is arranged on the outer layer of the middle-layer needle head in a sleeving mode, and therefore the inner-layer needle head, the middle-layer needle head and the outer-layer needle head jointly form the three-layer coaxial needle head. Furthermore, the method for preparing the light-cured water-carrying capsule can be applied to a device for preparing the light-cured water-carrying capsule. By means of the device, one-step forming of the water-carrying capsule can be achieved, the concentricity and sphericity of the water-carrying capsule prepared through the method can be improved, and meanwhile the storage stability of the water-carrying capsule is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of capsules, and in particular relates to a device for preparing light-cured water-carrying capsules and a preparation method of light-cured water-carrying capsules. Background technique [0002] Because of its large entrapment rate, good monodispersity and dimensional stability, water-carrying capsules have a wide range of applications in many industries, such as capsule skin care products in the daily chemical industry, drug-carrying capsules in the medical and health industry, and food capsules. In the industry, it is used for coating water-soluble food, as a capsule-type food additive, and in the tobacco industry as cigarette popping beads. [0003] Cigarette popping beads use natural polymer materials or synthetic polymer materials as the wall material, wrap all kinds of tobacco flavors in solid, liquid or gas form in a tiny closed spherical capsule, and implant them in the production process of the fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/04
CPCB01J13/046
Inventor 张謇赵瑾朝
Owner 湖北特斯特乐新材料科技有限责任公司
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