Preparation method of gel bead
A small ball and gel technology, applied in gel preparation, chemical instruments and methods, colloid chemistry, etc., can solve the problems of preparing sol particles, low friction coefficient of gel, and several orders of magnitude difference in size range, etc., to achieve operation The effect of simple method and small size difference
Active Publication Date: 2019-11-05
JINHUA VOCATIONAL TECH COLLEGE
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Problems solved by technology
[0002] Gel particles have important applications in many scientific fields. For example, their porous structure is especially suitable for drug release, and many gels have a low coefficient of friction, which can be used in basic research on the mechanical properties of materials. A preparation gel The particle method is to solidify the pre-prepared droplets to finally obtain the gel particles of the required size, but the current technology is difficult to prepare sol particles through a single distributed droplet with a diameter of about 1 mm
The disadvantages of existing technology are: traditional emulsification technology uses high energy input to obtain relatively dispersed droplets, but the size range of droplets usually differs by several orders of magnitude; in recent years, microfluidic technology can produce single distributed droplets, But it can usually only be used to generate droplets with a diameter of less than a few hundred microns, and it is difficult for the device to work for several hours to produce a large number of particles
Method used
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Embodiment Construction
[0019] Such as figure 1 It is a schematic diagram of the present invention, including cavity (1), airflow cover (2), air outlet pipe (3), nozzle (4), syringe pump (5), liquid storage tank I (6), liquid storage tank II (7) , air inlet pipe (8), flow meter (9), thermostat (10), liquid storage tank III (11) and infusion tube (12), xyz is a three-dimensional coordinate system, syringe pump (5), liquid storage tank I ( 6) and the liquid reservoir II (7) are located inside the chamber (1), and the thermostat (10) is located above the chamber (1), capable of maintaining a temperature range of 10 to 60 degrees Celsius in the chamber (1) , there is deionized water in the liquid storage tank II (7), one end of the air inlet pipe (8) is located under the deionized water in the liquid storage tank II (7), and the other end is located outside the cavity (1), the flow meter (9) Installed on the air intake pipe (8) outside the cavity (1); the airflow cover (2) is located outside the cavity ...
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The invention relates to the fields of research and development of new materials and new structures, and concretely relates to a preparation method of a gel bead. A preparation device of the gel beadscomprises a cavity, an airflow cover, an air outlet pipe, a nozzle, a syringe pump, liquid storage tanks, an air inlet tube, a flow meter, a thermostat and a liquid conveying tube. A liquid raw material for gel beads to be prepared is placed in the first liquid storage tank, and the thermostat is turned on to maintain the temperature in the chamber at 30 DEG C; the flow rate of the flow meter isadjusted to 2 L / min to make air sequentially go through the second liquid storage tank and the air outlet tube from the air inlet tube and be downwards blown out from the airflow cover; a liquid in the first liquid storage pool is transported to the nozzle by the syringe pump, and the liquid forms a drop at the lower end of the nozzle; a part of air in the airflow cover enters a main tube throughfour slits at the nozzle, and generates a pulling force to the liquid drops at the lower end of the nozzle; and the liquid drop at the lower end of the nozzle is separated from the nozzle, drips intoan oily liquid in the third liquid storage tank, and moves downwards under the action of gravity, and the liquid drop gradually solidifies in the dripping process to form the gel bead.
Description
technical field [0001] The invention relates to the field of research and development of new materials and new structures, in particular to a method for preparing gel beads capable of preparing individually distributed millimeter-scale gel beads. Background technique [0002] Gel particles have important applications in many scientific fields. For example, their porous structure is especially suitable for drug release, and many gels have a low coefficient of friction, which can be used in basic research on the mechanical properties of materials. A preparation gel The particle method is to solidify the pre-prepared droplets to finally obtain the gel particles of the required size, but the current technology is difficult to prepare sol particles through a single distributed droplet with a diameter of about 1 mm. The disadvantages of existing technology are: traditional emulsification technology uses high energy input to obtain relatively dispersed droplets, but the size range ...
Claims
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IPC IPC(8): B01J13/00
CPCB01J13/0052
Inventor 索奕双郭强张向平
Owner JINHUA VOCATIONAL TECH COLLEGE
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