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Lavender essential oil-loaded methyl methacrylate cross-linked polymer particles and preparation method thereof

A technology of methyl methacrylate and lavender essential oil, which is applied in the field of microparticles loaded with lavender essential oil and the field of preparation thereof, can solve problems such as decomposition or oxidative deterioration of aroma, and achieve the effects of not easy aggregation, little influence of temperature, and high entrapment rate.

Inactive Publication Date: 2015-09-09
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Like other plant essential oils, lavender essential oil is extremely volatile at room temperature and is sensitive to air, sunlight, humidity (moisture) and temperature, etc. It is easily decomposed or oxidized during storage, causing the aroma to deteriorate
There is no relevant report on methyl methacrylate cross-linked polymer particles loaded with lavender essential oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of methyl methacrylate cross-linked polymer particles loaded with lavender essential oil, the raw materials used in the preparation process are calculated in parts by weight, and the composition and content of the raw materials are as follows:

[0040] Surfactant 18 parts

[0041] 1 part lavender essential oil

[0042] 5 parts methyl methacrylate

[0043] 0.6 parts of divinylbenzene

[0044] Initiator 1 part

[0045] 80 parts of deionized water;

[0046] Described tensio-active agent is anionic surfactant sodium lauryl sulfate;

[0047] The initiator is a water-soluble initiator, and the water-soluble initiator is a redox initiation system mixed with potassium persulfate and sodium bisulfite, calculated by mass ratio, wherein potassium persulfate: hydrogen sulfite Sodium is 4:3;

[0048] The concrete steps of its preparation process are as follows:

[0049] (1) Dissolve 18g of surfactant in 80g of deionized water at room temperature, and stir to fully diss...

Embodiment 2

[0055] A kind of methyl methacrylate cross-linked polymer particles loaded with lavender essential oil, the raw materials used in the preparation process are calculated in parts by weight, and the composition and content of the raw materials are as follows:

[0056] Surfactant 18 parts

[0057] Lavender essential oil 4.5 parts

[0058] 4.5 parts of methyl methacrylate

[0059] 0.6 parts of divinylbenzene

[0060] Initiator 1 part

[0061] 80 parts of deionized water;

[0062] Described tensio-active agent is anionic surfactant sodium lauryl sulfate;

[0063] The initiator is a water-soluble initiator, and the water-soluble initiator is a redox initiation system mixed with potassium persulfate and sodium bisulfite, calculated by mass ratio, wherein potassium persulfate: hydrogen sulfite Sodium is 4:3;

[0064] The concrete steps of its preparation process are as follows:

[0065] (1) Dissolve 18g of surfactant in 80g of deionized water at room temperature, and stir to fu...

Embodiment 3

[0071] A kind of methyl methacrylate cross-linked polymer particles loaded with lavender essential oil, the raw materials used in the preparation process are calculated in parts by weight, and the composition and content of the raw materials are as follows:

[0072] Surfactant 18 parts

[0073] 3 parts lavender essential oil

[0074] Methyl methacrylate 6 parts

[0075] Initiator 1 part

[0076] 80 parts of deionized water;

[0077] Described tensio-active agent is anionic surfactant sodium lauryl sulfate;

[0078] The initiator is a water-soluble initiator, and the water-soluble initiator is a redox initiation system mixed with potassium persulfate and sodium bisulfite, calculated by mass ratio, wherein potassium persulfate: hydrogen sulfite Sodium is 4:3;

[0079] The concrete steps of its preparation process are as follows:

[0080] (1) Dissolve 18g of surfactant in 80g of deionized water at room temperature, and stir to fully dissolve the surfactant in deionized wate...

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Abstract

The invention discloses lavender essential oil-loaded methyl methacrylate cross-linked polymer particles and a preparation method thereof. The lavender essential oil-loaded methyl methacrylate cross-linked polymer particle has a core-shell structure, the core comprises lavender essential oil and the shell comprises a methyl methacrylate cross-linked polymer. At a temperature of 25 DEG C, the particle sizes are in a range of 136.6-554.9nm and an encapsulation rate is in a range of 2.76-22.5%. The preparation method comprises dissolving a surfactant in deionized water at a room temperature, carrying out stirring dissolution to obtain a water phase, mixing lavender essential oil, methyl methacrylate and divinyl benzene as a cross-linking agent to obtain a uniform oil phase, mixing the water phase and the oil phase, carrying out homogeneous ultrasonic emulsification to obtain an emulsion, adding an initiator into the emulsion, carrying out stirring at a temperature of 30-75 DEG C, and after a reaction for 4-8h, orderly carrying out demulsification, filtration, cleaning, pumping filtration and drying to obtain the lavender essential oil-loaded methyl methacrylate cross-linked polymer particles.

Description

technical field [0001] The invention relates to a microparticle loaded with lavender essential oil and a preparation method thereof, in particular to a methyl methacrylate crosslinked polymer microparticle loaded with lavender essential oil and a preparation method thereof. Background technique [0002] Lavender, also known as "Lavenda", is a perennial herb or semi-irrigation of Lamiaceae, with a strong aromatic smell. The main producing area of ​​lavender is along the Mediterranean coast, and it is cultivated in many parts of our country. Lavender essential oil is extracted from the whole plant of lavender, and it is an important spice raw material for blending soap and cosmetic essence. Lavender is an aromatic plant. The aromatic oil extracted from flowers can be used to make chemical products such as soap, toilet water, and cooling oil; it can also treat nervous heartbeat and flatulence, and has the effects of calming, driving wind, and relieving stress; [0003] In rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F212/36C08F2/26C08F4/40B01J13/14
Inventor 章苏宁王文扬
Owner SHANGHAI INST OF TECH
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