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High self-dispersion stability airtight fragrant essence microcapsule and preparation and application thereof

A technology of flavor microcapsules and microcapsules, which is applied in the directions of microcapsule preparation, microsphere preparation, textile and papermaking, etc., can solve the problems of easy delamination of flavor microcapsules, etc., and achieves improved dispersion stability, increased temperature, and reduced stirring speed. Effect

Active Publication Date: 2020-08-14
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a highly self-dispersing stable airtight essence microcapsule and its preparation and application, so as to overcome the defect that the essence microcapsules are easy to delaminate in the prior art

Method used

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  • High self-dispersion stability airtight fragrant essence microcapsule and preparation and application thereof
  • High self-dispersion stability airtight fragrant essence microcapsule and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] At room temperature, measure 174 grams of TDI into the three-necked flask, add 80 grams of anhydrous acetone at the same time, add 67 grams of anhydrous DMPA after stirring evenly, and heat to 60 degrees at a speed of 2 degrees per minute under stirring conditions. After reacting for 90 minutes, add 0.05 grams of dehydrated dibutyltin dilaurate, and continue to react for 2 hours. After measuring the NCO group in the reaction system to reach the theoretical value, the temperature is raised to 80 degrees under reduced pressure to remove the acetone solvent in the system and then cooled to 10 degrees.

[0036] Add 120 grams of natural lavender essential oil to the above system, stir evenly, add a mixed solution of 40 grams of diethylenetriamine and 250 grams of water, emulsify at 2000-3000 rpm, and keep warm for 40 minutes , then be warming up to 30 °, continue to insulate at a low speed (350-400 rpm) and stir after 6 hours to finish the reaction.

[0037] Through this em...

Embodiment 2

[0039] At room temperature, measure 168 grams of HDI and add it to a three-necked flask, add 100 grams of anhydrous acetone at the same time, add 67 grams of anhydrous DMPA after stirring evenly, heat to 60 degrees at a speed of 2 degrees per minute under stirring conditions, and react After 90 minutes, add 0.03 grams of dehydrated dibutyltin dilaurate, and continue to react for 3 hours. After measuring the NCO group of the reaction system to reach the theoretical value, the temperature is raised to 80 degrees under reduced pressure to remove the acetone solvent in the system and then cooled to 10 Spend.

[0040]Add 160 grams of natural chamomile essential oil to the above system, after stirring evenly, add a mixed solution of 40 grams of diethylenetriamine and 250 grams of water, emulsify under the condition of 2000-3000 rpm, and keep it warm for 40 minutes, then Warm up to 35°C, keep warm and stir at a low speed (350-400 rpm) for 6 hours and then finish the reaction.

[004...

Embodiment 3

[0043] Get the natural lavender essence microcapsule solution of above-mentioned embodiment 1, be configured into functional finishing agent padding solution by following formula, with plain weave cotton woven cloth (150 grams / meter) 2 ) Padding and finishing working solution, dry at 105 degrees for 3 minutes.

[0044] Natural lavender essence microcapsule solution: 30 g / L;

[0045] Acrylate adhesive (40%): 20 g / l;

[0046] Penetrant: 3 g / L;

[0047] Silicone softener: 10 g / l.

[0048] The fabric obtained in this example kept a recognizable lavender fragrance under mechanical friction conditions after being stored for 6 months.

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Abstract

The invention relates to a high self-dispersion stability airtight fragrant essence microcapsule and a preparation method and application thereof. The preparation method comprises the steps that diisocyanate and dimethylolpropionic acid (DMPA) react under the presence of a catalyst to obtain a diisocyanate prepolymer containing carboxyl; and the diisocyanate prepolymer is mixed with natural plantessential oil, emulsification is carried out in an aqueous solution containing diethylenetriamine, and finally an addition polymerization reaction is carried out. The fragrant essence microcapsule synthetic by the method has high self-dispersion stability and leakproofness; a fragrant essence microcapsule aqueous dispersion system is stored without stratification for a long time; and after the obtained fragrant essence microcapsule is arranged on fabrics, the long-time fragrance-retention time of the fragrant essence on the fabrics can be ensured.

Description

technical field [0001] The invention belongs to the field of microcapsules and their preparation and application, in particular to a highly self-dispersing stable airtight essence microcapsule and its preparation method and application. Background technique [0002] Microcapsule technology is a technology that uses film-forming materials to wrap solid or liquid into small particles. Its essence is to isolate the core material from the external environment through a closed or semi-closed wall membrane, so as to protect and stabilize the core material. Odor and color masking, controlled release core material purpose. The significance of microencapsulation is that it can effectively and permanently reduce the influence of external environmental factors such as oxygen, humidity, heat, light and other substances on the core material, effectively prevent these external factors from damaging the core material and reduce the leakage of the core material to the environment. Diffusio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/12D06M13/00D06M15/564C08G18/34C08G18/32C08G18/10B01J13/14
CPCD06M23/12D06M13/005D06M15/564C08G18/348C08G18/3228C08G18/10B01J13/14
Inventor 闵洁陈晓旋郑丽娟苏梦许晓敏孙潇夏浩宇
Owner DONGHUA UNIV