Reversible phase change atomized liquid gel containing hydrocarbyl-amino-glycosyl three-stage glycosyl gelling agent as well as preparation method and application thereof

A technology of atomized liquid and gelling agent, applied in the field of atomized liquid gel and its preparation, can solve the problem of irreversible phase change performance or low phase change temperature, increased research and development costs, and cooling to a lower temperature (such as 40°C) ) to restore the original solid state (semi-solid state, etc.), to improve thermal stability and gel phase transition temperature, inhibit hydrogen bond competition, and weaken the effect of solvation

Active Publication Date: 2020-09-18
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former brings the practical problems of increased R&D costs, complicated structure and manufacturing process. In addition, air circulation is required during the use of the atomizer, and it is impossible to completely isolate the atomizer from the outside atmosphere, so it is still difficult to control the leakage of e-liquid; The solid (semi-solid) e-liquid involved in the latter not only has a complicated preparation process, but also has no reversible phase transition performance or a low phase transition temperature, that is, it can only be melted by heat and cannot return to the ori

Method used

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  • Reversible phase change atomized liquid gel containing hydrocarbyl-amino-glycosyl three-stage glycosyl gelling agent as well as preparation method and application thereof
  • Reversible phase change atomized liquid gel containing hydrocarbyl-amino-glycosyl three-stage glycosyl gelling agent as well as preparation method and application thereof
  • Reversible phase change atomized liquid gel containing hydrocarbyl-amino-glycosyl three-stage glycosyl gelling agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] This embodiment is an atomized liquid gel 1 with thermally reversible phase change characteristics, which includes: sugar-based gelling agent, 0.8wt%; atomized liquid, 99.2wt%; based on the mass percentage of the atomized liquid, the The atomized liquid includes: an atomizing agent, which accounts for 92.0 wt% of the atomized liquid; nicotine, which accounts for 2.0 wt% of the atomized liquid; spices, which accounts for 6.0 wt% of the atomized liquid; The atomizer is a mixture of glycerin and propylene glycol, wherein the volume ratio of glycerin and propylene glycol is 5:5.

[0051] The chemical structural formula of the sugar-based gelling agent is:

[0052]

[0053] Directly inject the molten atomizing liquid gel 1 solution of this embodiment into the liquid storage chamber of the electronic cigarette atomizer, and after the solution is cooled and gelled, the atomizing liquid gel cartridge 1 suitable for electronic cigarettes is prepared, and the For electronic c...

Embodiment 2

[0056] This embodiment is an atomized liquid gel 2 with shear reversible phase transition characteristics, and the chemical structural formula of the sugar-based gelling agent used in it is:

[0057]

[0058] Other preparation conditions, the distribution ratio of each component are the same as in Example 1.

[0059] Directly inject the molten atomized liquid gel 1 solution of this example into the liquid storage tank of the atomizer, and after the solution is cooled and gelled, the atomized liquid gel pod 1 is prepared, which is used for high-frequency bulk acoustic wave In the oscillating atomization device, the critical shear stress of the gel-sol phase transition is 200Pa. Under high shear and violent oscillation (sonic frequency 2.4MHz), the gel network structure is destroyed, the gel viscosity decreases, and the trapped The atomized liquid is released to produce an inhalable aerosol; after a few puffs, the vibration is stopped, and the gel can be quickly self-assemble...

Embodiment 3

[0062] This embodiment is an atomized liquid gel 3 with thermally reversible phase transition characteristics, and the chemical structural formulas of the sugar-based gelling agents used are:

[0063]

[0064] Other preparation conditions are identical with embodiment 1.

[0065] Directly inject the molten atomized liquid gel 3 solution of this embodiment into the aerosol generating device made of porous material, and fix the solution into the porous material after cooling and gelling, and the gel-sol phase transition temperature is 155 °C, after repeated puffing several times, the phase change performance of the atomized liquid gel 3 is still obvious, so the atomized liquid gel 3 prepared in this example is suitable for electronic cigarettes that require high-temperature atomization of the atomized liquid middle.

[0066] The test method of the gel-sol phase transition temperature in this embodiment is the same as that in Example 1.

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Abstract

The invention discloses a reversible phase change atomized liquid gel containing a hydrocarbyl-amino-glycosyl three-stage glycosyl gelling agent, which comprises the following components in percentageby mass: 0.1-3.0 wt% of a glycosyl gelling agent and 97.0-99.9 wt% of atomized liquid. The chemical structural formula of the glycosyl gelling agent is shown in the specification, wherein R1 and R2 are hydrocarbyl. The atomized liquid gel disclosed by the invention has a thermal reversible phase change characteristic and/or a shear reversible phase change characteristic, the gel-sol phase changetemperature is 135-160 DEG C, and the gel-sol phase change critical shear stress is 55-330Pa. Under heating and/or oscillation, the atomized liquid gel is changed into a sol state from a gel state, and an atomizing agent fixed in the gel is released to form inhalable aerosol; and when heating and/or oscillation is stopped, the sol-state gel rapidly recovers to a gel state, and the atomizing agentwhich is not atomized in the gel is fixed in the gel network again. The atomized liquid gel disclosed by the invention can solve the problem of smoke condensate after suction is stopped and the problem of smoke liquid leakage of an atomizer caused by air pressure change or external force action in transportation.

Description

technical field [0001] The invention belongs to the technical field of gels, and in particular relates to an atomized liquid gel with reversible phase transition characteristics and a preparation method and application thereof containing a hydrocarbon-amino-glycosyl three-stage sugar-based gelling agent derived from carbohydrates . Background technique [0002] Supramolecular organogels are non-glassy, ​​non-crystalline thermoreversible solid materials comprising a three-dimensional network (solid phase) made of entangled and self-assembled gelling agent fibers and their immobilized organic continuous phase ( liquid phase). Supramolecular organogels contain mainly organic liquids with rheological behavior and solid appearance. The continuous organic phase includes organic solvents, vegetable oils or mineral oils, and the organic solvents that can be gelled include aliphatic and aromatic hydrocarbons, alcohols, silicone oil, dimethyl sulfoxide, and the like. The gelling ag...

Claims

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Application Information

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IPC IPC(8): B01J13/00C09K5/02A24B15/167A24D1/00A24D1/20
CPCB01J13/0065C09K5/02A24B15/167A24D1/002A24D1/20
Inventor 巩效伟赵伟韩熠朱东来张霞李寿波李廷华洪鎏陈永宽吕茜廖思尧
Owner CHINA TOBACCO YUNNAN IND
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