Magnetic response microcapsule as well as preparation method and application thereof

Abstract

The invention relates to a magnetic response microcapsule and a preparation method and application thereof, the magnetic response microcapsule comprises a wall material and a core material, the wall material comprises a complex formed by a complexation reaction of a magnetic response material and polyphenol, and the core material is selected from at least one of a medicine, a perfume base and a cigarette smell agent; the magnetic response material comprises at least one of magnetic response metal ions and magnetic response metal oxide nanoparticles. The magnetic response microcapsule contains a magnetic response material and can realize controllable release under the action of a magnetic field.

Description

Technical Field

[0001] The present invention relates to the field of electronic atomization, and in particular to a magnetic responsive microcapsule and a preparation method and application thereof. Background Art

[0002] Compared with traditional cigarettes, electronic cigarettes are loved by cigarette lovers all over the world because they do not contain carcinogens such as tar and have rich flavors. Flavors and flavors are added to the atomizing liquid of electronic cigarettes. The volatility of flavor and flavor molecules is uncontrollable. During use, there is generally a phenomenon of poor durability and durability. As the number of puffs increases, due to sensory fatigue and the reduction of flavor substances in the atomizing liquid, the taste of the atomizing liquid decreases, which greatly affects the consumer's smoking experience. However, there is no effective way in the prior art to solve the problem of taste attenuation of the atomizing liquid caused by the increase in the number of puffs. In addition, different groups of people have different requirements for taste intensity, and the existing atomizing liquid cannot achieve adjustable release of taste intensity, and cannot meet the taste needs of different groups of people. Summary of the invention

[0003] In order to overcome the problems existing in the prior art, one of the objectives of the present invention is to provide a magnetic responsive microcapsule.

[0004] A second object of the present invention is to provide a method for preparing magnetic responsive microcapsules.

[0005] A third object of the present invention is to provide an electronic atomization liquid.

[0006] A fourth object of the present invention is to provide an application of a magnetically responsive microcapsule in the field of electronic atomization.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] The first aspect of the present invention provides a magnetically responsive microcapsule, which includes a wall material and a core material, wherein the wall material includes a complex formed by a complex reaction between a magnetically responsive material and a polyphenol, and the core material is selected from at least one of a drug, a fragrance base, and a tobacco flavoring agent; the magnetically responsive material includes at least one of a magnetically responsive metal ion and a magnetically responsive metal oxide nanoparticle.

[0009] The magnetically responsive material in the present invention refers to a material that heats up under the action of a magnetic field. There are two ways to release magnetically responsive microcapsules, specifically: (1) Under the action of a high-frequency (tens to hundreds of MHz) magnetic field, the magnetically responsive material in the magnetically responsive microcapsule generates local heat and destroys the microcapsule structure, thereby achieving controlled release of the microcapsule. (2) Under the action of a low-frequency alternating magnetic field, the magnetically responsive material moves locally under the action of the magnetic field, causing the microcapsule structure to change, thereby achieving controlled release of the microcapsule. The microcapsules in the present invention contain magnetically responsive materials, so that the microcapsules can release the active ingredient (i.e., the core material) under the action of a magnetic field, and then the released core material is heated and atomized to form an aerosol, thereby achieving the amount of active ingredient in the aerosol controlled by the magnetic field, so that the amount of active ingredient in the aerosol remains constant or adjustable, thereby avoiding the occurrence of taste attenuation. In addition, the magnetically responsive material in the microcapsule performs shear movement under the action of the magnetic field, the microcapsule is destroyed, and the core material in the microcapsule is released and atomized. The release amount of the microcapsule can be regulated by controlling the strength of the magnetic field, thereby achieving selective control of the release amount according to the needs of different users for odor concentration, thereby meeting the taste intensity needs of different consumers.

[0010] Preferably, the medicine includes Chinese medicine or Western medicine. Chinese medicine has a pungent smell, and many patients resist swallowing Chinese medicine. The present invention can encapsulate the medicine by magnetic responsive microcapsules to avoid the pungent smell of Chinese medicine.

[0011] Preferably, the fragrance base includes at least one of essence and essential oil. The essences used in the present invention are all food-grade spices and flavors. The fragrance base contains unstable components such as esters and aldehydes, which are easy to volatilize or oxidize and deteriorate under high temperature environment. When atomized to form an aerosol, the fragrance flavor characteristics disappear, and there is a phenomenon of poor persistence and durability, and even unpleasant odors such as "fermentation taste" may appear. Therefore, the present invention uses magnetic responsive microcapsules to embed the core materials such as fragrance bases, which can completely solve the problem of fragrance base volatilization, and then solve the problem of poor persistence and durability of fragrance bases. On the other hand, the use of magnetic responsive microcapsules to embed the core material can also achieve controlled release of microcapsules, thereby meeting the taste intensity and taste diversity needs of different consumers.

[0012] Preferably, the flavor includes at least one of blueberry flavor, banana flavor, mint flavor, strawberry flavor, and coconut flavor.

[0013] Preferably, the essential oil includes at least one of sweet orange essential oil, lemon essential oil, peppermint essential oil, lavender essential oil and grapefruit essential oil.

[0014] Preferably, the tobacco flavoring agent is selected from at least one of nicotine and nicotine salt.

[0015] Preferably, the magnetic responsive microcapsules include the following raw materials in parts by weight: 0.01 to 0.05 parts of magnetic responsive material, 0.04 to 0.1 parts of polyphenol, 0.01 to 0.1 parts of emulsifier, 89 to 100 parts of solvent, and 0.1 to 10 parts of core material.

[0016] Polyphenol is a compound with a phenolic hydroxyl group content of not less than 2. The magnetic responsive material and the polyphenol undergo a complexation reaction to form a complexation product, which is coated on the outside of the emulsion made of the core material, the emulsifier and the solvent. On the one hand, it can avoid the occurrence of decomposition, volatilization or oxidation of the core material, and on the other hand, it can make the microcapsule controllably released under the action of the magnetic field.

[0017] Preferably, the polyphenol is at least one selected from compounds containing phenolic hydroxyl functional groups.

[0018] Preferably, the polyphenol is selected from at least one of tannic acid, ellagic acid, gallic acid, anthocyanin, and dopamine. The present invention uses polyphenols with good biocompatibility as one of the wall materials, which not only achieves the adjustable release of the core material, but also the polyphenols themselves have multiple functions such as anti-oxidation and antibacterial, so that the electronic atomization liquid has certain antioxidant and antibacterial effects, avoids the oxidation of components in the electronic atomization liquid or the growth of microorganisms in the electronic atomization liquid, and is healthier and safer to use.

[0019] Preferably, based on the total mass percentage of the magnetically responsive microcapsules being 100%, the mass percentage of the magnetically responsive material is 0.1-5%.

[0020] Preferably, the magnetically responsive metal ions include Fe 3+ ion.

[0021] Preferably, the magnetically responsive metal oxide nanoparticles include Fe3O4 nanoparticles.

[0022] Fe 3+ Ions and Fe3O4 nanoparticles used as magnetically responsive materials in magnetically responsive microcapsules have high safety and will not pose a safety hazard to consumers.

[0023] The emulsifier is selected from at least one of Tween 80, Span 60, Span 80, triglyceride, propylene glycol fatty acid ester, lauric acid monoglyceride, and sodium stearoyl lactylate.

[0024] Preferably, the solvent is water.

[0025] The second aspect of the present invention is to provide a method for preparing the magnetic responsive microcapsules provided in the first aspect of the present invention, comprising the following steps:

[0026] S1: homogenizing and emulsifying the emulsifier, the solvent and the core material to prepare an emulsion;

[0027] S2: Mixing the emulsion, the magnetic responsive material and the polyphenol to prepare the magnetic responsive microcapsule.

[0028] Preferably, the preparation method further comprises the step of performing step S3 after step S2, and step S3 is: adjusting the pH to 7-9.

[0029] Preferably, the preparation method further comprises performing step S4 after step S3, wherein step S4 comprises: washing with water, and then centrifuging at a speed of 2000-10000 rpm to separate the magnetic responsive microcapsules.

[0030] Preferably, the water washing times are no less than two times; more preferably, the water washing times are 2 to 5 times.

[0031] Preferably, the homogenization and emulsification step takes 5 to 40 minutes.

[0032] Preferably, the step S3 specifically comprises: adjusting the pH to 7-9 and standing for 1-5 hours.

[0033] Preferably, the mixing step in step S2 is specifically: mixing with a vortex mixer for 10 to 30 seconds.

[0034] The third aspect of the present invention provides an electronic atomization liquid, comprising the magnetically responsive microcapsules provided by the first aspect of the present invention.

[0035] Preferably, the electronic atomization liquid also includes a polyol.

[0036] Preferably, taking the total weight percentage of the electronic atomization liquid as 100%, the electronic atomization liquid comprises the following components in weight percentage: 90 to 99.99% of polyol and 0.01 to 10% of magnetic responsive microcapsules.

[0037] Preferably, the polyol is selected from at least one of glycerol, propylene glycol, triethylene glycol and ethanol.

[0038] Preferably, the polyols are glycerol and propylene glycol, and the mass ratio of glycerol to propylene glycol is 1:(0.1-8).

[0039] The fourth aspect of the present invention provides the application of the magnetic responsive microcapsules provided in the first aspect of the present invention in the field of electronic atomization.

[0040] The beneficial effects of the present invention are as follows: the magnetically responsive microcapsules of the present invention contain magnetically responsive materials, which can achieve controllable release under the action of a magnetic field. Specifically, the present invention uses metal polyphenol complex products as wall materials to embed the core material, and the core material can be controlled to release through a magnetic field, thereby meeting the taste requirements of different consumers. The polyphenol material also has antibacterial and antioxidant effects, which can make the storage of magnetically responsive microcapsules more stable, avoid oxidation of active ingredients or the growth of microorganisms during storage, and have higher safety.

[0041] The electronic atomization liquid of the present invention adopts magnetic responsive microcapsules, which not only solves the problem of flavor attenuation, but also can achieve adjustable and diversified choices of flavor intensity for different consumers, and better match with consumer taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a test chart of the release rate of the magnetic response release fragrance atomized liquid in Application Example 1 under the action of a magnetic field. DETAILED DESCRIPTION

[0043] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples, but the implementation and protection of the present invention are not limited thereto. It should be noted that if there are processes that are not particularly described in detail below, they can be implemented or understood by those skilled in the art with reference to the prior art. The reagents or instruments used that do not indicate the manufacturer are all conventional products that can be purchased commercially.

[0044] Example 1

[0045] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0046] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0047] (1) 99 g of deionized water, 0.94 g of sweet orange essential oil, and 0.01 g of Tween 80 were emulsified in a homogenizer for 10 min to prepare an emulsion;

[0048] (2) 0.01 g FeCl3·6H2O and 0.04 g tannic acid were added to the above emulsion, and the liquid was vigorously mixed for 10 s using a vortex mixer;

[0049] (3) Adjust the pH to 8 using phosphate buffer solution and let stand for 3 h;

[0050] (4) washing three times to remove excess FeCl3·6H2O and tannic acid;

[0051] (5) The magnetically responsive microcapsules in this example were prepared by centrifugation at 2000 rpm. The magnetically responsive microcapsules in this example were rich in sweet orange essential oil.

[0052] Example 2

[0053] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0054] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0055] (1) 89.75 g of deionized water, 10 g of lemon essential oil, and 0.1 g of Span 60 were emulsified in a homogenizer for 10 min to prepare an emulsion;

[0056] (2) 0.05 g FeCl3·6H2O and 0.1 g ellagic acid were added to the above emulsion, and the liquid was vigorously mixed for 10 s using a vortex mixer;

[0057] (3) Adjust the pH to 7.5 with phosphate buffer solution and let stand for 4 h;

[0058] (4) washing three times with water to remove excess FeCl3·6H2O and ellagic acid;

[0059] (5) The magnetically responsive microcapsules in this example are prepared by centrifugation at 4000 rpm. The magnetically responsive microcapsules in this example are rich in lemon essential oil.

[0060] Example 3

[0061] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0062] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0063] (1) 99.79 g of deionized water, 0.1 g of peppermint essential oil, and 0.01 g of Span 80 were emulsified in a homogenizer for 15 min to prepare an emulsion;

[0064] (2) 0.04 g FeCl3·6H2O and 0.06 g gallic acid were added to the above emulsion, and the liquid was vigorously mixed using a vortex mixer for 10 s;

[0065] (3) Adjust the pH to 8.5 with phosphate buffer solution and let stand for 2 h;

[0066] (4) washing three times to remove excess FeCl3·6H2O and gallic acid;

[0067] (5) The magnetically responsive microcapsules in this example were prepared by centrifugation at 3000 rpm. The magnetically responsive microcapsules in this example were rich in peppermint essential oil.

[0068] Example 4

[0069] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0070] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0071] (1) 99.84 g of deionized water, 0.1 g of blueberry flavor, and 0.01 g of triglyceride were emulsified in a homogenizer for 5 min to prepare an emulsion;

[0072] (2) 0.01 g FeCl3·6H2O and 0.04 g anthocyanin were added to the above emulsion, and the liquid was vigorously mixed for 10 s using a vortex mixer;

[0073] (3) Adjust the pH to 7.5 with phosphate buffer solution and let stand for 3 h;

[0074] (4) washing three times to remove excess FeCl3·6H2O and anthocyanins;

[0075] (5) The magnetically responsive microcapsules in this example were prepared by centrifugation at 6000 rpm. The magnetically responsive microcapsules in this example were rich in blueberry flavor.

[0076] Example 5

[0077] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0078] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0079] (1) 97.82 g of deionized water, 2 g of banana essence, and 0.08 g of propylene glycol fatty acid ester were emulsified in a homogenizer for 15 min to prepare an emulsion;

[0080] (2) 0.02 g FeCl3·6H2O and 0.08 g dopamine were added to the above emulsion, and the liquid was vigorously mixed using a vortex mixer for 15 s;

[0081] (3) Adjust the pH to 7.5 with phosphate buffer solution and let stand for 4 h;

[0082] (4) washing three times with water to remove excess FeCl3·6H2O and dopamine;

[0083] (5) The magnetically responsive microcapsules in this example were prepared by centrifugation at 6000 rpm. The magnetically responsive microcapsules in this example were rich in banana flavor.

[0084] Example 6

[0085] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0086] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0087] (1) 94.85 g of deionized water, 0.5 g of lavender essential oil, and 0.06 g of monolaurin were emulsified in a homogenizer for 10 min to prepare an emulsion;

[0088] (2) 0.03 g FeCl3·6H2O and 0.06 g tannic acid were added to the above emulsion, and the liquid was vigorously mixed for 10 s using a vortex mixer;

[0089] (3) Adjust the pH to 7 using phosphate buffer solution and let stand for 3 h;

[0090] (4) washing three times to remove excess FeCl3·6H2O and tannic acid;

[0091] (5) The magnetically responsive microcapsules in this example are prepared by centrifugation at 10000 rpm. The magnetically responsive microcapsules in this example are rich in lavender essential oil.

[0092] Example 7

[0093] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0094] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0095] (1) 93.89 g of deionized water, 0.6 g of grapefruit essential oil, and 0.04 g of sodium stearoyl lactylate were emulsified in a homogenizer for 10 min to prepare an emulsion;

[0096] (2) 0.02 g FeCl3·6H2O and 0.05 g tannic acid were added to the above emulsion, and the liquid was vigorously mixed for 15 s using a vortex mixer;

[0097] (3) Adjust the pH to 7.5 with phosphate buffer solution and let stand for 3 h;

[0098] (4) washing three times to remove excess FeCl3·6H2O and tannic acid;

[0099] (5) The magnetically responsive microcapsules in this example were prepared by centrifugation at 6000 rpm. The magnetically responsive microcapsules in this example were rich in grapefruit essential oil.

[0100] Example 8

[0101] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0102] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0103] (1) Take 91.79 g of deionized water, 8 g of mint essence, and 0.1 g of Tween 80, and emulsify them in a homogenizer for 10 min to prepare an emulsion;

[0104] (2) 0.04 g FeCl3·6H2O and 0.07 g gallic acid were added to the above emulsion, and the liquid was vigorously mixed using a vortex mixer for 15 s;

[0105] (3) Adjust the pH to 8 using phosphate buffer solution and let stand for 3 h;

[0106] (4) washing three times to remove excess FeCl3·6H2O and gallic acid;

[0107] (5) The magnetic responsive microcapsules in this example are prepared by rotating the microcapsules at 8000 rpm. The magnetic responsive microcapsules in this example are rich in mint flavor.

[0108] Example 9

[0109] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0110] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0111] (1) Take 91.98 g of deionized water, 7 g of strawberry essence, and 0.9 g of Tween 80, and emulsify them in a homogenizer for 10 min to prepare an emulsion;

[0112] (2) 0.05 g FeCl3·6H2O and 0.07 g gallic acid were added to the above emulsion, and the liquid was vigorously mixed using a vortex mixer for 10 s;

[0113] (3) Adjust the pH to 8 using phosphate buffer solution and let stand for 3 h;

[0114] (4) washing three times to remove excess FeCl3·6H2O and gallic acid;

[0115] (5) The magnetically responsive microcapsules in this example were prepared by centrifugation at 6000 rpm. The magnetically responsive microcapsules in this example were rich in strawberry flavor.

[0116] Example 10

[0117] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0118] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0119] (1) Take 96.4 g of deionized water, 3 g of coconut essence, and 0.5 g of Tween 80, and emulsify them in a homogenizer for 15 min to prepare an emulsion;

[0120] (2) 0.01 g FeCl3·6H2O and 0.09 g gallic acid were added to the above emulsion, and the liquid was vigorously mixed using a vortex mixer for 10 s;

[0121] (3) Adjust the pH to 8 using phosphate buffer solution and let stand for 3 h;

[0122] (4) washing three times to remove excess FeCl3·6H2O and gallic acid;

[0123] (5) The magnetically responsive microcapsules in this example were prepared by centrifugation at 5000 rpm. The magnetically responsive microcapsules in this example were rich in coconut flavor.

[0124] Embodiment 11

[0125] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0126] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0127] (1) 97.11 g of deionized water, 2 g of Momordica grosvenori extract, and 0.8 g of Tween 80 were emulsified in a homogenizer for 15 min to prepare an emulsion;

[0128] (2) 0.03 g FeCl3·6H2O and 0.06 g tannic acid were added to the above emulsion, and the liquid was vigorously mixed for 10 s using a vortex mixer;

[0129] (3) Adjust the pH to 8 using phosphate buffer solution and let stand for 3 h;

[0130] (4) washing three times to remove excess FeCl3·6H2O and tannic acid;

[0131] (5) The magnetic responsive microcapsules in this example were prepared by centrifugation at 5000 rpm.

[0132] Example 12

[0133] The components and amounts of raw materials for preparing the magnetic responsive microcapsules in this example are shown in Table 1.

[0134] The magnetic responsive microcapsules in this example are prepared by the following preparation method, which specifically includes the following steps:

[0135] (1) 97.8 g of deionized water, 1.5 g of a Chinese medicine honeysuckle extract, and 0.5 g of Tween 80 were emulsified in a homogenizer for 15 min to prepare an emulsion;

[0136] (2) 0.1 g of FeCl3·6H2O and 0.1 g of tannic acid were added to the above emulsion, and the liquid was vigorously mixed for 10 s using a vortex mixer;

[0137] (3) Adjust the pH to 8 using phosphate buffer solution and let stand for 3 h;

[0138] (4) washing three times to remove excess FeCl3·6H2O and tannic acid;

[0139] (5) The magnetic responsive microcapsules in this example were prepared by centrifugation at 5000 rpm.

[0140] Table 1 Preparation materials and proportions of magnetic responsive microcapsules in Examples 1 to 12 (unit: g)

[0141]

[0142] Application Example 1

[0143] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 10 g of glycerol, 80 g of propylene glycol, and 10 g of the magnetically responsive microcapsules in Example 1.

[0144] Application Example 2

[0145] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 80 g of glycerol, 10 g of propylene glycol, and 10 g of the magnetically responsive microcapsules in Example 2.

[0146] Application Example 3

[0147] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 40 g of glycerol, 55 g of propylene glycol, and 5 g of the magnetically responsive microcapsules in Example 3.

[0148] Application Example 4

[0149] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 40 g of glycerol, 59 g of propylene glycol, and 1 g of the magnetically responsive microcapsules in Example 4.

[0150] Application Example 5

[0151] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 40 g of glycerol, 59.5 g of propylene glycol, and 0.5 g of the magnetically responsive microcapsules in Example 5.

[0152] Application Example 6

[0153] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 45 g of glycerol, 54.9 g of propylene glycol, and 0.1 g of the magnetically responsive microcapsules in Example 6.

[0154] Application Example 7

[0155] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 35 g of glycerol, 64.99 g of propylene glycol, and 0.01 g of the magnetically responsive microcapsules in Example 7.

[0156] Application Example 8

[0157] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 30 g of glycerol, 67 g of propylene glycol, and 3 g of the magnetically responsive microcapsules in Example 8.

[0158] Application Example 9

[0159] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 45 g of glycerol, 47 g of propylene glycol, and 8 g of the magnetically responsive microcapsules in Example 9.

[0160] Application Example 10

[0161] The components of the magnetically responsive flavor-releasing atomized liquid in this example are: 50 g of glycerol, 48 g of propylene glycol, and 2 g of the magnetically responsive microcapsules in Example 10.

[0162] Application Example 11

[0163] The components of the magnetic responsive Chinese medicine aerosol liquid in this example are: 50g glycerol, 48g propylene glycol, and 2g of the magnetic responsive microcapsules in Example 11.

[0164] Application Example 12

[0165] The components of the magnetic responsive Chinese medicine aerosol liquid in this example are: 50g glycerol, 48g propylene glycol, and 2g of the magnetic responsive microcapsules in Example 12.

[0166] The atomized liquid in application examples 1 to 12 is prepared by the following preparation method, which specifically includes the following steps: uniformly mixing the formulated amounts of glycerol, propylene glycol, and magnetically responsive microcapsules.

[0167] Performance Test:

[0168] The release rate of the magnetic response release fragrance atomized liquid in Application Example 1 under the action of an alternating magnetic field was tested. The specific test method is as follows: the atomized liquid in Application Example 1 is alternately subjected to a magnetic field and a stirring action, the alternating magnetic field frequency is fixed at 360 kHz, and the stirring rate is 1000 rpm; 0-15 min is the magnetic field action, 15-30 min is the stirring (without the magnetic field action), 30-45 min is the magnetic field action, 45-60 min is the stirring (without the magnetic field action), and 60-75 min is the magnetic field action. The specific test results are shown in FIG. Figure 1 As shown. Figure 1It can be seen that the atomized liquid in Application Example 1 breaks the microcapsules under the action of the magnetic field and begins to release the fragrance substances, while the release amount of the microcapsules is still very low even in a high-speed stirring environment without a magnetic field. The atomized liquids in Application Examples 2 to 12 have the same properties as the atomized liquid in Application Example 1, that is, the atomized liquid is stable without the action of a magnetic field, the release rate is still very low even in a high-speed stirring environment, and the release is controllable under the action of a magnetic field.

[0169] The above is a detailed description of the embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A magnetically responsive microcapsule, characterized in that: It comprises a wall material and a core material, wherein the wall material comprises a complex formed by a complex reaction between a magnetically responsive material and polyphenols, and the core material is selected from at least one of a drug, a fragrance base, and a tobacco flavoring agent; and the magnetically responsive material comprises at least one of a magnetically responsive metal ion and a magnetically responsive metal oxide nanoparticle.

2. The magnetically responsive microcapsule according to claim 1, characterized in that: The magnetic responsive microcapsule comprises the following raw materials in parts by weight: 0.01 to 0.05 parts of magnetic responsive material, 0.04 to 0.1 parts of polyphenol, 0.01 to 0.1 parts of emulsifier, 89 to 100 parts of solvent and 0.1 to 10 parts of core material.

3. The magnetically responsive microcapsule according to claim 1 or 2, characterized in that: The polyphenol is selected from at least one of compounds containing phenolic hydroxyl functional groups; preferably, the polyphenol is selected from at least one of tannic acid, ellagic acid, gallic acid, anthocyanin, and dopamine.

4. The magnetically responsive microcapsule according to claim 1, characterized in that: Taking the total mass percentage of the magnetic responsive microcapsules as 100%, the mass percentage of the magnetic responsive material is 0.1-5%.

5. The magnetically responsive microcapsule according to claim 1, characterized in that: The magnetically responsive metal ions include Fe 3+ ; and / or, the magnetically responsive metal oxide nanoparticles include Fe3O4 nanoparticles.

6. The magnetically responsive microcapsule according to claim 2, characterized in that: The emulsifier is selected from at least one of Tween 80, Span 60, Span 80, triglycerol, propylene glycol fatty acid ester, lauric acid monoglyceride, and sodium stearoyl lactylate; and / or the solvent is water; and / or the tobacco flavoring agent is selected from at least one of nicotine and nicotine salt; and / or the fragrance base includes at least one of essence and essential oil.

7. The method for preparing the magnetically responsive microcapsules according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: homogenizing and emulsifying the emulsifier, the solvent and the core material to prepare an emulsion; S2: Mixing the emulsion, the magnetic responsive material and the polyphenol to prepare the magnetic responsive microcapsule.

8. The method for preparing the magnetic responsive microcapsules according to claim 7, characterized in that: The preparation method further comprises the step of performing step S3 after step S2, wherein step S3 is: adjusting the pH to 7-9.

9. An electronic atomization liquid, characterized in that: The invention comprises the magnetically responsive microcapsule as described in any one of claims 1 to 6.

10. Use of the magnetically responsive microcapsule according to any one of claims 1 to 6 in the field of electronic atomization.

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