CN107890841A - A kind of inside is compound microcapsules of multinuclear and preparation method thereof - Google Patents
A kind of inside is compound microcapsules of multinuclear and preparation method thereof Download PDFInfo
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- CN107890841A CN107890841A CN201711462658.4A CN201711462658A CN107890841A CN 107890841 A CN107890841 A CN 107890841A CN 201711462658 A CN201711462658 A CN 201711462658A CN 107890841 A CN107890841 A CN 107890841A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
- B01J13/043—Drying and spraying
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Abstract
The invention discloses the compound microcapsules that a kind of inside is multinuclear, it is made up of water-based wall material solution, liquid essence and polymer microcapsule/microballoon, the quality of the liquid essence is the 5~30% of water-based wall material solution quality, the quality of the polymer microcapsule/microballoon is the 7~80% of water-based wall material solution quality, and the quality of wall material is the 10~60% of water quality in the water-based wall material solution.The invention also discloses the preparation method of above-mentioned compound microcapsules.Coat while realizing the variform material such as liquid and solid-state and be independent of each other between cladding material, discharged with can having levels to each other, it is versatile and simple to operate, it is suitable for large-scale production.
Description
Technical field
The present invention relates to microcapsules technology field, more particularly to internal package liquid essence and polymer microcapsule/microballoon
Compound microcapsules of multinuclear and preparation method thereof.
Background technology
Microcapsules can form separation layer on target substance surface isolates it with external environment, and under given conditions
Discharge core.Using this feature of microcapsules, people have been widely applied to household chemicals, food, biology doctor
Medicine, catalysis add the industry fields such as loading, coating.
With the needs of social production, many researchers have developed the microcapsules of various morphosis.Wherein, it is more
Core microcapsules can coat more active materials and special feature, increasingly be favored by people.Publication No.
CN102256588A Chinese invention patent discloses a kind of micro- glue of the multinuclear containing spices with internal aqueous phase and internal oil phase
The production method of capsule, it is dispersed in the core of the aqueous phase composition of the oil-continuous phase containing perfuming component or perfume composition, gathered
Isocyanates and organic compound comprising permanent quaternary ammonium group and primary ammonium or hydroxyl contain spices by interfacial polymerization formation
The polyureas or polyurethane microcapsule of multinuclear.It is more that Publication No. CN104353401A Chinese invention patent discloses a kind of multiple cohesion
Core plants essential oil slow-release microcapsule, wrapped from chitosan and Arabic gum as compound wall materialses outside plants essential oil core
Wrap up in, obtain the slow release microcapsules of regular spherical coenocytism.Publication No. CN103769020A Chinese invention patent discloses
It is a kind of first to wrap up the first core with melamino-formaldehyde prepolymer, by adjusting pH value react to obtain the micro- glue of melamino-formaldehyde
Capsule, then itself and the second core are added in chitosan solution, drop is formed with syringe pump, collected solid in CaCl2 solution
Change, and then obtain the preparation method of double-core microcapsules.
Multinuclear microcapsules can be prepared by above method, so as to improve the loading capacity of microcapsules.But above method is present
Following defect：1st, for the preparation method used for interfacial polymerization or coacervation, operating condition is strict, is unfavorable for large-scale production；
2nd, wrapped material is single, and the material of variform can not be coated.Therefore it is, it is necessary to a kind of easy, it is adapted to scale
Production, wrap up the universal method of the compound microcapsules of variform material.
The content of the invention
For overcome the deficiencies in the prior art, liquid essence has been wrapped up simultaneously and has been gathered it is an object of the invention to provide a kind of
The compound microcapsules of multinuclear of complex microcapsule/microballoon, while realizing the variform material such as liquid and solid-state cladding and
It is independent of each other between cladding material, discharges with can having levels to each other, it is versatile and simple to operate, it is suitable for scale
Production.
In order to achieve the above object, the technical solution adopted in the present invention is as follows：
A kind of inside be multinuclear compound microcapsules, its by water-based wall material solution, liquid essence and polymer microcapsule/
Microballoon is made, and the quality of the liquid essence is the 5~30% of water-based wall material solution quality, the polymer microcapsule/microballoon
Quality be the 7~80% of water-based wall material solution quality, in the water-based wall material solution quality of wall material for water quality 10~
60%.
The inside of the present invention is the compound microcapsules of multinuclear, can be with by controlling the type and proportioning of water-soluble wall material
The compound microcapsules with different dissolution properties are prepared, the characteristics of being dissolved only in hot water using wall material or be dissolved in cold water, according to not
Same use environment and application target, the ratio of different dissolution properties wall materials is adjusted, realize the control release for being wrapped by material：When
During from being dissolved in cold water and compounded insoluble in cold water but hot water soluble two kinds of wall materials, hot-melting type constituent content is low, obtains
Compound microcapsules quickly dissolve or rupture in cold water, so as to discharge liquid essence and polymer microcapsule/microballoon；Instead
It, hot-melting type constituent content is high, and obtained compound microcapsules are swelled in cold water or dissolved slowly, but in the hot water can be fast
Instant solution, the liquid essence being wrapped by and polymer microcapsule/microballoon are discharged.
Preferably, the water-based wall material solution is aqueous gelatin solution, chitosan aqueous solution, the Arabic gum aqueous solution, marine alga
One or both of acid sodium aqueous solution, polyvinyl alcohol water solution are mixed above.Above-mentioned wall material have be dissolved in cold water, be dissolved in hot water
, can be selected according to use environment, rate of release using the wall material of cold water is dissolved in, either hot water soluble wall material or
The wall material for being dissolved in cold water mixes with hot water soluble wall material.
Preferably, the liquid essence be caryophyllus oil, menthol, tea oil, lavender oil, lemongrass oil, Rosa Damascana,
One or both of litsea citrate oil, orange oil, fennel oil, jasmine oil, Michelia oil, Java Cananga Oil are mixed above.
Preferably, the structure of the polymer microcapsule/microballoon is core shell structure or loose structure, particle diameter 100nm-80
Between μm, more preferably particle diameter is between 500nm~30 μm.
Preferably, the wall material of the polymer microcapsule/microballoon is melamine resin, Lauxite, polyurethane, polyacrylic acid
One kind in ester, polystyrene.
Another object of the present invention is to provide the preparation method for the compound microcapsules that above-mentioned inside is multinuclear, it includes
Following steps：
(1) water-based wall material solution is prepared：Wall material is dissolved in deionized water；
(2) liquid essence is added in hydrotropism's wall material solution；
(3) emulsifying；
(4) polymer microcapsule/microballoon is added, is uniformly mixed；
(5) it is spray-dried.
Preferably, using the reactor with agitator and heater when step (1) prepares water-based wall material solution, add
After deionized water, wall material is added, then heating stirring is down to room temperature to being completely dissolved.
Preferably, step (3) emulsifying 5-15min under 5000-12000rpm/min rotating speed, it is fragrant to obtain emulsification
Essence.
Preferably, step (4) adds polymer microcapsule/microballoon, fully stirred under 300-2000rpm/min rotating speed
Mix, polymer microcapsule/microballoon is well mixed with emulsifying essence.By controlling mixing speed, polymer microcapsule/micro- is realized
Ball stable dispersion in emulsifying essence solution.Stir speed (S.S.) is too high, and polymer microcapsule/micro- is easily destroyed in dispersion process
Ball, cause to be wrapped by material leakage；Stir speed (S.S.) is too low, and polymer microcapsule/microballoon disperses uneven.
Preferably, the EAT of step (5) spray drying is 140-190 DEG C, and leaving air temp is 60-90 DEG C, charging speed
Rate is 20ml/min.
Compared with prior art, the beneficial effects of the present invention are：
1st, it is coenocytism inside compound microcapsules of the invention, while has coated liquid essence and solid particle, it is real
Show the parcel of different type active material, improve the LOADING RATES of microcapsules.
2nd, compound microcapsules of the invention discharge liquid essence and polymer microcapsule/microballoon first, and discharge
Polymer microcapsule/the microballoon come is in applied external force, the effect of such as mechanical damage, then discharges polymer microcapsule/micro-
Material is wrapped by inside ball so that different material is independent of each other between different phase release, and difference are wrapped by material, ensures
The stabilization of product quality, and assign product special performance, in family or personal care articles, cosmetics, food, medicine
Product, functional form field are with a wide range of applications.
3rd, the inventive method by spray drying, liquid essence and polymer microcapsule or microballoon can be wrapped up simultaneously, its
It is simple to operate, it is versatile, it is suitable for large-scale production.
Embodiment
Below, by embodiment, the present invention is described further：
The LOADING RATES of compound microcapsules in following examples, is determined as follows：
A certain amount of sample is taken, with the finely ground rear load for adding a small amount of alcohol, dissolving compound microcapsules of mortar, micropore
, will be fixed molten with distilled water diluting dissolved with the filtrate of load after membrane filtration solution, added with ultraviolet-uisible spectrophotometer measure
The absorbance of loading, convert to obtain the concentration of load by calibration curve equation, LOADING RATES is further calculated.
Embodiment 1
A kind of inside is the compound microcapsules of multinuclear, and it is made by the following method：
Into the reactor with agitator and heater, 500g deionized waters are added, add 150g gelatin, heated
System temperature is down to room temperature by stirring to after being completely dissolved.Then 32.5g menthols are added into system, in 8000rpm/min
Rotating speed under emulsifying 10min, obtain menthol emulsifying essence.Then under 300rpm/min rotating speed, add 45.5g and put down
The melamine resin essence microcapsule that equal particle diameter is 1.0 μm, is sufficiently stirred, melamine resin microcapsules is mixed with menthol emulsifying essence
Close uniform.It it is finally 140 DEG C in EAT, leaving air temp is 80 DEG C, and feed rate is sprayed dry under conditions of being 20ml/min
It is dry, obtain the internal compound microcapsules for multinuclear.
Compound microcapsules obtained above, it is using the compound micro- of gelatin coatings menthol and melamine resin microcapsules
Capsule, it is powdered, good fluidity, the LOADING RATES for measuring the compound microcapsules is 34%.
And under similarity condition, save that above-mentioned " and then under 300rpm/min rotating speed, adding 45.5g average grain diameters is
1.0 μm of melamine resin essence microcapsule, is sufficiently stirred, and melamine resin microcapsules is well mixed with menthol emulsifying essence "
The step of, when preparing the only microcapsules of parcel menthol, obtained microscapsule powder LOADING RATES only has 16%.
Therefore, the compound microcapsules improve the LOADING RATES of core.The microcapsules can quickly dissolve in the hot water, release
Go out menthol and melamine resin microcapsules.Under external force friction, melamine resin microcapsules further discharge essence.
Embodiment 2
A kind of inside is the compound microcapsules of multinuclear, and it is made by the following method：
Into the reactor with agitator and heater, 1000g deionized waters are added, add 450g Arabic gums
With 100g polyvinyl alcohol 1788, heating stirring is down to room temperature to after being completely dissolved, by system temperature.Then added into system
300g Rosa Damascanas, the emulsifying 5min under 10000rpm/min rotating speed, obtain Rosa Damascana emulsifying essence.Then exist
Under 500rpm/min rotating speed, the polystyrene essence microballoon that 450g average grain diameters are 500nm is added, is sufficiently stirred, makes polyphenyl
Ethene microballoon is well mixed with emulsifying essence.Then it is 180 DEG C in EAT, leaving air temp is 75 DEG C, and feed rate is
It is spray-dried under conditions of 20ml/min, obtains the internal compound microcapsules for multinuclear.
Compound microcapsules obtained above, it is that Rosa Damascana and polyphenyl are wrapped up using Arabic gum and polyvinyl alcohol 1788
The compound microcapsules of ethene microballoon, it is powdered, there is good fluidity, its LOADING RATES is 57%.
And under similarity condition, save above-mentioned steps " and then into system add 300g Rosa Damascanas, in 10000rpm/
Emulsifying 5min under min rotating speed, obtains Rosa Damascana emulsifying essence.Then under 500rpm/min rotating speed, add
450g average grain diameters are 500nm polystyrene essence microballoon, are sufficiently stirred, polystyrene microsphere is mixed with emulsifying essence
It is even " microcapsules for only wrapping up Rosa Damascana are prepared, obtained microscapsule powder LOADING RATES only has 28%.
Therefore, the compound microcapsules improve the LOADING RATES of core.The microcapsules are dissolved in cold water, discharge Rosa Damascana
And polystyrene microsphere.Under external force friction, polystyrene essence microballoon further discharges essence.
Embodiment 3
A kind of inside is the compound microcapsules of multinuclear, and it is made by the following method：
Into the reactor with agitator and heater, 1000g deionized waters are added, add 350g sodium alginates
With 50g polyvinyl alcohol 1799, heating stirring is down to room temperature to after being completely dissolved, by system temperature.Then added into system
420g caryophyllus oils, the emulsifying 5min under 12000rpm/min rotating speed, obtain caryophyllus oil emulsifying essence.Then exist
Under 1000rpm/min rotating speed, the polyacrylate essence microballoon that 700g average grain diameters are 100nm is added, is sufficiently stirred, makes to gather
Acrylate microspheres are well mixed with emulsifying essence.It it is finally 170 DEG C in EAT, leaving air temp is 60 DEG C, feed rate
To be spray-dried under conditions of 20ml/min, the internal compound microcapsules for multinuclear are obtained.
Compound microcapsules obtained above, it is that caryophyllus oil and polypropylene are wrapped up using sodium alginate and polyvinyl alcohol 1799
The compound microcapsules of acid esters microballoon, it is powdered, there is good fluidity, its LOADING RATES is 70%.
And the microcapsules for only wrapping up caryophyllus oil are prepared under similarity condition, obtained microscapsule powder LOADING RATES only has
40%.
Therefore, the compound microcapsules improve the LOADING RATES of core.The microcapsules are swelled in cold water, in the hot water soon
Instant solution, discharge caryophyllus oil and polyacrylic acid ester microsphere.Under external force friction, polyacrylic acid ester microsphere further discharges perfume (or spice)
Essence.
Embodiment 4
A kind of inside is the compound microcapsules of multinuclear, and it is made by the following method：
Into the reactor with agitator and heater, 800g deionized waters are added, add 30g polyvinyl alcohol
1788 and 50g polyvinyl alcohol 1799, heating stirring is down to room temperature to after being completely dissolved, by system temperature.Then add into system
Enter 176g Java Cananga Oils, the emulsifying 15min under 5000rpm/min rotating speed, obtain Java Cananga Oil emulsifying essence.Then exist
Under 2000rpm/min rotating speed, the polyurethane essence microcapsule that 264g average grain diameters are 300 μm is added, is sufficiently stirred, makes poly- ammonia
Ester microcapsules are well mixed with emulsifying essence.It it is finally 190 DEG C in EAT, leaving air temp is 85 DEG C, and feed rate is
It is spray-dried under conditions of 20ml/min, obtains the internal compound microcapsules for multinuclear.
Compound microcapsules obtained above, it is that Java Cananga Oil is wrapped up using polyvinyl alcohol 1788 and polyvinyl alcohol 1799 and gathered
The compound microcapsules of urethane microcapsules, it is powdered, there is good fluidity, its LOADING RATES is 84%.
The microcapsules for only wrapping up Java Cananga Oil are prepared under similarity condition, obtained microscapsule powder LOADING RATES only has 48%.
Therefore, the compound microcapsules improve LOADING RATES.The microcapsules are swelled in cold water, fast instant in the hot water
Solution, discharges Java Cananga Oil and polyurethane microcapsule.Under external force friction, polyurethane microcapsule further discharges essence.
Embodiment 5
Into the reactor with agitator and heater, 900g deionized waters are added, 540g chitosans is added, adds
Thermal agitation is down to room temperature to after being completely dissolved, by system temperature.Then 144g tea oils are added into system, in 8000rpm/
Emulsifying 10min under min rotating speed, obtains tea oil emulsifying essence.Then under 700rpm/min rotating speed, add
1152g average grain diameters are 5 μm of polyacrylate essence microcapsule, are sufficiently stirred, and make polyacrylate microcapsules fragrant with emulsification
Essence is well mixed.It it is finally 180 DEG C in EAT, leaving air temp is 90 DEG C, and feed rate is sprayed under conditions of being 20ml/min
Mist is dried, and obtains the internal compound microcapsules for multinuclear.
Compound microcapsules obtained above, be using chitosan parcel tea oil and polyacrylate microcapsules it is compound
Type microcapsules are the powder with good fluidity, and its LOADING RATES is 70%.
And the microcapsules for only wrapping up tea oil are prepared under similarity condition, obtained microscapsule powder LOADING RATES only has
21%.
Therefore, the compound microcapsules improve the LOADING RATES of core.The microcapsules are dissolved in hot water, discharge tea oil and
Polyacrylate microcapsules.Under external force friction, polyacrylate microcapsules further discharge essence.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of inside is the compound microcapsules of multinuclear, it is characterised in that by water-based wall material solution, liquid essence and polymer
Microcapsules/microballoon is made, and the quality of the liquid essence is the 5~30% of water-based wall material solution quality, the micro- glue of polymer
The quality of capsule/microballoon is the 7~80% of water-based wall material solution quality, and the quality of wall material is water quality in the water-based wall material solution
10~60%.
2. the internal compound microcapsules for multinuclear as claimed in claim 1, it is characterised in that：The water-based wall material solution is
One kind in aqueous gelatin solution, chitosan aqueous solution, the Arabic gum aqueous solution, sodium alginate aqueous solution, polyvinyl alcohol water solution
Or two or more mixing.
3. the internal compound microcapsules for multinuclear as claimed in claim 1, it is characterised in that：The liquid essence is cloves
It is oil, menthol, tea oil, lavender oil, lemongrass oil, Rosa Damascana, litsea citrate oil, orange oil, fennel oil, jasmine oil, white
One or both of orchid oil, Java Cananga Oil are mixed above.
4. the internal compound microcapsules for multinuclear as claimed in claim 1, it is characterised in that：The polymer microcapsule/
The structure of microballoon is core shell structure or loose structure, between particle diameter is 100nm-80 μm.
5. the internal compound microcapsules for multinuclear as claimed in claim 1, it is characterised in that：The polymer microcapsule/
The wall material of microballoon is one kind in melamine resin, Lauxite, polyurethane, polyacrylate, polystyrene.
6. the inside described in claim 1 to 5 any one is the preparation method of the compound microcapsules of multinuclear, it is characterised in that
Comprise the following steps：
(1) water-based wall material solution is prepared：Wall material is dissolved in deionized water；
(2) liquid essence is added in hydrotropism's wall material solution；
(3) emulsifying；
(4) polymer microcapsule/microballoon is added, is uniformly mixed；
(5) it is spray-dried.
7. the preparation method of the internal compound microcapsules for multinuclear as claimed in claim 6, it is characterised in that：Step (1)
Using the reactor with agitator and heater when preparing water-based wall material solution, after adding deionized water, wall material is added,
Then heating stirring is down to room temperature to being completely dissolved.
8. the preparation method of the internal compound microcapsules for multinuclear as claimed in claim 6, it is characterised in that：Step (3)
Emulsifying 5-15min, obtains emulsifying essence under 5000-12000rpm/min rotating speed.
9. the preparation method of the internal compound microcapsules for multinuclear as claimed in claim 6, it is characterised in that：Step (4)
Under 300-2000rpm/min rotating speed, polymer microcapsule/microballoon is added, is sufficiently stirred, makes polymer microcapsule/microballoon
It is well mixed with emulsifying essence.
10. the preparation method of the internal compound microcapsules for multinuclear as claimed in claim 6, it is characterised in that：Step (5)
The EAT of spray drying is 140-190 DEG C, and leaving air temp is 60-90 DEG C, feed rate 20ml/min.
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| CN201711462658.4A CN107890841A (en) | 2017-12-28 | 2017-12-28 | A kind of inside is compound microcapsules of multinuclear and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915048A (en) * | 2021-01-19 | 2021-06-08 | 江西丰兰香精香料有限公司 | Composite essence and preparation method and application thereof |
| CN114732931A (en) * | 2022-05-06 | 2022-07-12 | 广州阜耀生物科技有限公司 | Preparation method of agilawood microcapsule sustained-release granules |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717438Y (en) * | 2004-06-04 | 2005-08-17 | 深圳职业技术学院 | Double-layer coating biological active-micro capsule for nutrients |
| CN102827586A (en) * | 2012-09-17 | 2012-12-19 | 上海菲康垫子制品厂 | Double-layer aromatic organic phase change material microcapsules and preparation method thereof |
-
2017
- 2017-12-28 CN CN201711462658.4A patent/CN107890841A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717438Y (en) * | 2004-06-04 | 2005-08-17 | 深圳职业技术学院 | Double-layer coating biological active-micro capsule for nutrients |
| CN102827586A (en) * | 2012-09-17 | 2012-12-19 | 上海菲康垫子制品厂 | Double-layer aromatic organic phase change material microcapsules and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 宋健等: "《微胶囊化技术及应用》", 30 September 2001 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915048A (en) * | 2021-01-19 | 2021-06-08 | 江西丰兰香精香料有限公司 | Composite essence and preparation method and application thereof |
| CN114732931A (en) * | 2022-05-06 | 2022-07-12 | 广州阜耀生物科技有限公司 | Preparation method of agilawood microcapsule sustained-release granules |
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Application publication date: 20180410 |