CN106039361B - Air freshener and preparation method thereof - Google Patents
Air freshener and preparation method thereof Download PDFInfo
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- CN106039361B CN106039361B CN201610502474.5A CN201610502474A CN106039361B CN 106039361 B CN106039361 B CN 106039361B CN 201610502474 A CN201610502474 A CN 201610502474A CN 106039361 B CN106039361 B CN 106039361B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
Abstract
The present invention relates to a kind of air fresheners and preparation method thereof, the air freshener is by mass percentage, it is prepared by the raw material for including following components: 0.4%~6% crosslinking agent, 0.5%~10% gelling agent, 1%~15% solubilizer, 0.1%~15% cosolvent, 0.05%~0.5% preservative, 0.5%~6% flavors and fragrances, surplus are water.Air freshener of the present invention is the gel solids with appearance of oozing, and has good high-temperature stability, and elasticity is good for colloid, slow release, can be permanent fragrant, pleasant mental and body.
Description
Technical field
The present invention relates to daily chemical product fields, more particularly to a kind of air freshener and preparation method thereof.
Background technique
In recent years, with the continuous improvement of China's lives of the people level, people are also more next to health and domestic environment
More pay attention to.Air quality has become the another focus of attention after food safety.Keep the clean of air and environment with
It is pure and fresh, it is everyone hope.Possess pure and fresh air, fatigue on the one can be eliminated, the nervous body and mind of relaxation is beneficial to
Human body is physically and mentally healthy.Mainly there are liquid-type, aerosol and gel from form in the air freshener of sale on the market at present
Type.Wherein most common and practical is gel-type, can be easy to use with the smell of slow release fragrance.At present in China
In the market, air freshener Market competition.Many consumers are not simply as a kind of fragrance using air freshener
Agent, also more focuses on product whole design and appearance, and air freshener can be used as a kind of ornament and have both fragrance and decorative beauty
It sees.Therefore, the exploitation of air freshener new product also will increasingly consider different consumer demands.
Have prior art discloses a kind of long effective air freshener, which employs hydroexpansivity resins and long-acting gelling agent system
Standby available gel type air freshener, fragrance obtain slow release.But it is still added simultaneously using fragrance as fragrance ingredient
Have the auxiliary agents such as virose ethylene glycol, safety needs to be investigated.As people's lives level is higher and higher, product is wanted
Ask also higher and higher.Therefore, a excellent air freshener not only has a purification air, pleasant mental and body, but also will safely,
Have no toxic side effect, store and it is easy to use, with certain aesthetics and decorative performance.Have that prior art discloses a kind of gels
Air freshener, the invention are related to substantially rigid, clear gel matrix air freshener product.It uses gelinite tree
Glue, polysaccharide transparent matrix material and gelatin, nonylphenol polyoxyethylene ether class surfactant carry out solubilising.Gelatin is used alone
Although can be with gel under low-temperature condition, gel be very unstable at high operating temperatures, therefore its practical application effect
Less.And presently, there are the regulations technical requirements such as environmental protection for nonylphenol polyoxyethylene ether class surfactant, apply clear in air
There are certain regulation risks for new agent.Have prior art discloses a kind of compound adhesive and air freshener as made from it, adopts
It is compounded with low-acyl gellan gum and carragheen, is prepared for the gel air fresher of a kind of high grade of transparency and thermal stability, fragrance
Emission capabilities are strong, stablize under thermal environment, will not melt and bleed.Low-acyl gellan gum is with higher in hydrophilic colloid
Light rate, but its gel needs ion induction, the type and additive amount of ion have great influence to its transparency.And
And the higher gellan gum of light transmittance, for light transmittance generally 80% or so, needing to further increase its transparency is technically to have one
Fixed difficulty.
It in summary it can be seen, air freshener has not only been merely a kind of aromatic product, and more beautiful appearance attribute can
To assign the added value outside turnout.A kind of solid air freshening agent with appearance of oozing can have both fragrance and beautiful decoration
Function meets different consumer demands.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of air freshener and preparation method thereof.The present invention passes through spy
Determine the isobutyiene-maieic anhydride alternate copolymer and aminosal gel-type vehicle gelatin with amide segment of molecular weight ranges
Crosslinked action, overcome and be used alone gelatin the shortcomings that there are non-refractories, the air freshener of preparation is with oozing outside
The gel solids of sight not only provide fragrant atmosphere experience, pleasant mental and body, and appearance is glittering and translucent, and high-temperature stability is good, can be with
As home decoration products.
To realize the above-mentioned technical purpose, specific technical solution is as follows:
A kind of air freshener is prepared by the raw material for including following components by mass percentage:
0.4%~6% crosslinking agent, 0.5%~10% gelling agent, 1%~15% solubilizer, 0.1%~15%
Cosolvent, 0.05%~0.5% preservative, 0.5%~6% essence, surplus is water；
The crosslinking agent is the isobutyiene-maieic anhydride with amide segment that number-average molecular weight is 120000~250000
Alternate copolymer；The gelling agent is the aminosal gel-type vehicle gelatin that isoelectric point is 4~7；The solubilizer is one kind
Or more than one nonionic surfactant；The cosolvent is at least a kind of polyol solvent.
In wherein some embodiments, by mass percentage, it is prepared by the raw material for including following components:
0.5%~2% crosslinking agent, 1%~4% gelling agent, 2%~8% solubilizer, 3%~14% hydrotropy
Agent, 0.08%~0.2% preservative, 3%~5% essence, surplus are water.
In wherein some embodiments, by mass percentage, it is prepared by the raw material for including following components:
1%~1.5% crosslinking agent, 2%~3% gelling agent, 5%~7% solubilizer, 13%~14% hydrotropy
Agent, 0.09%~0.11% preservative, 3%~3.5% essence, surplus are water.
The solubilizer is sldium lauryl sulfate, sorbitan fatty acid ester, Crodaret, fatty alcohol
Any one of polyoxyethylene ether, sorbitan fatty acid ester polyoxyethylene ether or more than one mixture.
Preservative in the present invention is preferably in sodium benzoate, methylparaben, Phenoxyethanol and isothiazolinone
It is a kind of.Essence odor type of the present invention may include jasmine fragrance, osmanthus flower fragrant, green tea odor type, rose scent, lavender odor type, lily
The odor types such as odor type, orchid odor type and lemon flavor and lemon tea tree ethereal oil, Rosa Damascana and Lavender.
In wherein some embodiments, the number-average molecular weight of the crosslinking agent is 150000~180000.
In wherein some embodiments, the number-average molecular weight of the crosslinking agent is 160000~170000.
In wherein some embodiments, the solubilizer is Crodaret, fatty alcohol polyoxyethylene ether, mistake
One of water Span, sorbitan fatty acid ester polyoxyethylene ether or more than one mixture.
In wherein some embodiments, the solubilizer is Crodaret and/or aliphatic alcohol polyethenoxy
Ether.
In wherein some embodiments, the cosolvent is the mixing of one or more of ethyl alcohol, propylene glycol, glycerol
Object.
The present invention also provides the above-mentioned preparation methods with air freshener, comprising the following steps:
(1) preparation of A phase solution: first the gelling agent is stirred well in 70~75 DEG C of suitable quantity of water transparent molten
Liquid, is then cooled to 35~45 DEG C, and insulated and stirred obtains A phase solution；
(2) preparation of B phase solution: the crosslinking agent is stirred in the remaining water of room temperature to clear solution, B is obtained and mixes
Liquid；
(3) preparation of C phase solution: the solubilizer, cosolvent, essence are mixed, is stirred to transparency liquid, is obtained C and mix
Liquid；
(4) three mix: first the C phase solution is added in the A phase solution, stirs evenly, is maintained at 35~45 DEG C,
Then the B phase solution, preservative are added, is stirred evenly；
(5) discharge, be placed in 0~18 DEG C of environment be cooled to solid to get.
Above-mentioned steps are the scheme that preferably feeds intake of the invention, and the present invention is not limited to above-mentioned feeding sequences.
Air freshener of the present invention have the following advantages compared with the prior art and the utility model has the advantages that
1) the isobutyiene-maieic anhydride alternating copolymerization with amide segment that the present invention passes through preferred specified molecular weight range
Crosslinked action of the object as crosslinking agent and specific aminosal gel-type vehicle gelatin, obtained air freshener are with oozing
The gel solids of saturating appearance, excellent transparency, light transmittance can achieve 95% or more, and appearance is glittering and translucent, have good
Aesthetics.
2) air freshener prepared by the present invention has good high-temperature stability, passes through lasting 50 DEG C of high temperature of tolerance
30 days period measurings, elasticity is good for colloid, slow release, can be permanent fragrant, pleasant mental and body.
Specific embodiment
Below by way of specific preferred embodiment, air freshener of the invention is described in further detail, but the present invention
It is not limited in embodiment below.
Raw materials used in the embodiment of the present invention is commercially available common product.
In the embodiment of the present invention essence odor type used may include jasmine fragrance, osmanthus flower fragrant, green tea odor type, rose scent,
Lavender odor type, lily odor type, orchid odor type and lemon flavor and lemon tea tree ethereal oil, Rosa Damascana and Lavender
Equal odor types.
Examples 1 to 3
According to 1 formulation content of table, the air freshener of Examples 1 to 3 is prepared respectively, preparation method includes following step
It is rapid:
(1) preparation of A phase solution: first by aminosal gel-type vehicle gelatin in 70~75 DEG C of appropriate amount of deionized water
It is stirred well to clear solution, is then cooled to 35~45 DEG C, insulated and stirred obtains A phase solution；
(2) preparation of B phase solution: by the isobutyiene-maieic anhydride alternate copolymer with amide segment in the surplus of room temperature
It is stirred in remaining deionized water, until clear solution, obtains B phase solution；
(3) preparation of C phase solution: essence, Crodaret and ethyl alcohol are mixed, stirring to transparency liquid,
Obtain C phase solution；
(4) three mix: first C phase solution being added in A phase solution, stirs evenly；Temperature is measured, is maintained at 35~45 DEG C
In, then B phase solution is added in the AC mixed liquor that A phase solution and C phase solution are formed, preservative isothiazolinone is added,
It stirs evenly；Discharge canned, by product be placed in 0~18 DEG C of environment cooling 4~8h to solid to get.
The formula composition of the air freshener of 1 Examples 1 to 3 of table
Embodiment 4~6
According to 2 formulation content of table, the air freshener of embodiment 4~6 is prepared respectively, preparation method includes following step
It is rapid:
(1) preparation of A phase solution: first aminosal gel-type vehicle gelatin is filled in 70~75 DEG C of appropriate amount of deionized water
Divide stirring to clear solution, is then cooled to 35~45 DEG C, insulated and stirred obtains A phase solution；
(2) preparation of B phase solution: by the isobutyiene-maieic anhydride alternate copolymer with amide segment in the surplus of room temperature
It is stirred in remaining deionized water, until clear solution, obtains B phase solution；
(3) preparation of C phase solution: essence, Crodaret, AEO9 and ethyl alcohol are mixed, and are stirred to transparent
Liquid obtains C phase solution；
(4) three mix: first C phase solution being added in A phase solution, stirs evenly；Temperature is measured, is maintained at 35-45 DEG C
In, then B phase solution is added in the AC mixed liquor that A phase solution and C phase solution are formed, preservative methylparaben is added,
It stirs evenly；Discharge canned, by product be placed in 0-18 DEG C of environment cooling 4~8h to solid to get.
The formula composition of the air freshener of 2 embodiment 4~6 of table
Embodiment 7~9
According to 3 formulation content of table, the air freshener of embodiment 7~9 is prepared respectively, preparation method includes following step
It is rapid:
(1) preparation of A phase solution: first aminosal gel-type vehicle gelatin is filled in 70~75 DEG C of appropriate amount of deionized water
Divide stirring to clear solution, is then cooled to 35~45 DEG C, insulated and stirred obtains A phase solution；
(2) preparation of B phase solution: by the isobutyiene-maieic anhydride alternate copolymer with amide segment in room temperature residue
Deionized water in stir, until clear solution, obtains B phase solution；
(3) preparation of C phase solution: essence, Crodaret, ethyl alcohol and mixed with propylene glycol are stirred to saturating
Prescribed liquid obtains C phase solution；
(4) three mix: first C phase solution being added in A phase solution, stirs evenly；Temperature is measured, is maintained at 35~45 DEG C
In, then B phase solution is added in the AC mixed liquor that A phase solution and C phase solution are formed, preservative Phenoxyethanol is added, stirs
It mixes uniformly；Discharge canned, by product be placed in 0~18 DEG C of environment cooling 4~8h to solid to get.
The formula composition of the air freshener of 3 embodiment 7~9 of table
Embodiment 10~12
According to 4 formulation content of table, the air freshener of embodiment 10~12 is prepared respectively, preparation method includes following step
It is rapid:
(1) preparation of A phase solution: first by aminosal gel-type vehicle gelatin in 70~75 DEG C of appropriate amount of deionized water
It is stirred well to clear solution, is then cooled to 35~45 DEG C, insulated and stirred obtains A phase solution；
(2) preparation of B phase solution: by the isobutyiene-maieic anhydride alternate copolymer with amide segment in the surplus of room temperature
It is stirred in remaining deionized water, until clear solution, obtains B phase solution；
(3) preparation of C phase solution: by essence, Crodaret, AEO9, ethyl alcohol and mixed with propylene glycol, stirring
To transparency liquid, C phase solution is obtained；
(4) three mix: first C phase solution being added in A phase solution, stirs evenly；Temperature is measured, is maintained at 35~45 DEG C
In, then B phase solution is added in the AC mixed liquor that A phase solution and C phase solution are formed, preservative methylparaben is added,
It stirs evenly；Discharge canned, by product be placed in 0~18 DEG C of environment cooling 4~8h to solid to get.
The formula composition of the air freshener of 4 embodiment 10~12 of table
Embodiment 13~15
According to 5 formulation content of table, the air freshener of embodiment 13~15 is prepared respectively, preparation method includes following step
It is rapid:
(1) preparation of A phase solution: first by aminosal gel-type vehicle gelatin in 70~75 DEG C of appropriate amount of deionized water
It is stirred well to clear solution, is then cooled to 35~45 DEG C, insulated and stirred obtains A phase solution；
(2) preparation of B phase solution: by the isobutyiene-maieic anhydride alternate copolymer with amide segment in the surplus of room temperature
It is stirred in remaining deionized water, until clear solution, obtains B phase solution；
(3) preparation of C phase solution: essence, Crodaret, AEO9 and mixed with propylene glycol are stirred to saturating
Prescribed liquid obtains C phase solution；
(4) three mix: first C phase solution being added in A phase solution, stirs evenly；Temperature is measured, is maintained at 35~45 DEG C
In, then B phase solution is added in the AC mixed liquor that A phase solution and C phase solution are formed, preservative isothiazolinone is added,
It stirs evenly；Discharge canned, by product be placed in 0~18 DEG C of environment cooling 4~8h to solid to get.
The formula composition of the air freshener of 5 embodiment 13~15 of table
Comparative example 1
A kind of air freshener, substantially the same manner as Example 11, difference is: the used isobutyl with amide segment
Alkene-maleic anhydride alternate copolymer number-average molecular weight is 100000.
Comparative example 2
A kind of air freshener, substantially the same manner as Example 11, difference is: the used isobutyl with amide segment
Alkene-maleic anhydride alternate copolymer number-average molecular weight is 270000.
Comparative example 3
A kind of air freshener, substantially the same manner as Example 11, difference is: used gelling agent is carragheen.
Comparative example 4
A kind of air freshener, substantially the same manner as Example 11, difference is: used gelling agent is gellan gum.
Effect application test example
Respectively to 1~15 gained air freshener of the embodiment of the present invention, commercially available normal air freshener and comparative example 1~
4 resulting air fresheners are tested for the property, and the specific test method is as follows:
1, the measuring method of light transmittance
In the cuvette that the sample that embodiment, comparative example are prepared is fitted into 10mm at hot solution at 60~80 DEG C respectively,
It is cooled to solution solidification (about 3~4h), using deionized water as reference, using ultraviolet specrophotometer, in 490 ± 1nm wave
Strong point measures its light transmittance.
2, using Time evaluation method
Sample and commercial product (about 80g) parallel (2 groups) that embodiment, comparative example are prepared are placed in half ventilation respectively
It volatilizees naturally in environment, records origination date.Observation daily and weighing, until the complete exhausted or weight constant weight of sample, is judged as
Using finishing, record date calculates and uses number of days.
3, stability test
High-temperature stability test: embodiment, the sample of comparative example preparation and commercial product are placed in (50 ± 1) respectively
DEG C incubator in place 30 days, take out when restoring to room temperature observation gel without infiltration situation.
Low-temperature stability test: embodiment, the sample of comparative example preparation and commercial product are placed in (0 ± 1) respectively
DEG C incubator in place 30 days, take out and observe gel flawless when restoring to room temperature.
The light transmittance and use time test result of air freshener obtained by 6 Examples 1 to 8 of table
7 embodiment of table, 9~15 gained air freshener with commercial product light transmittance and use time test result
8 comparative example of table, 1~4 gained air freshener light transmittance and use time test result
The stability test result of air freshener obtained by 9 Examples 1 to 8 of table
10 embodiment of table, 9~15 gained air freshener and commercial product stability test result
11 comparative example of table, 1~4 gained air freshener stability test result
The isobutyiene-maieic anhydride alternate copolymer with amide segment that the present invention passes through preferred specified molecular weight range
As the crosslinked action of crosslinking agent and specific aminosal gel-type vehicle gelatin, the air freshener of preparation is with oozing
The gel solids of appearance, appearance is glittering and translucent, and elasticity is good for colloid, high temperature resistant.It not only provides fragrant atmosphere to experience, pleasant mental and body, and
Colloid is glittering and translucent, mixes packaging material appropriate, can also become household Handicraft decorative articles.With traditional liquid type air freshener
It compares, air freshener of the present invention is the gel solids with appearance of oozing, and unlimited placement can continue fragrance 30 days or more, make
With conveniently.Also more environmentally-friendly, the health, safety of air freshener of the present invention in use.It is green to air to meet consumer
Color, pure and fresh, natural requirement.It is good that 6~table of consolidated statement, 11 test data can be seen that various embodiments of the present invention product stability,
50 DEG C of high temperature, 30 days period measurings are persistently resistant to, and very high light transmittance is kept to illustrate that product transparency is excellent up to 97% or more
It is different, it is also above commercial product using the time, and comparative example 1, comparative example 2 have the isobutene-of amide segment due to crosslinking agent
Maleic anhydride alternate copolymer molecular weight is different, and immanent structure is also different, prepares sample and is unable to gel.Comparative example 3 and right
Its light transmittance of ratio 4 is remarkably decreased, and carragheen gel sample is the defects of high-temperature stability tests easily infiltration, gellan gum gel sample
Product low-temperature stability is poor, and gel strength is a greater impact.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of air freshener, which is characterized in that by mass percentage, be prepared by the raw material for including following components:
0.4%~6% crosslinking agent, 0.5%~10% gelling agent, 1%~15% solubilizer, 0.1%~15% helps
Solvent, 0.05%~0.5% preservative, 0.5%~6% essence, surplus are water；
The crosslinking agent is the isobutyiene-maieic anhydride alternating with amide segment that number-average molecular weight is 120000~250000
Copolymer；The gelling agent is the aminosal gel-type vehicle gelatin that isoelectric point is 4~7；The solubilizer is one kind or one
Kind or more nonionic surfactant；The cosolvent is at least a kind of polyol solvent.
2. air freshener according to claim 1, which is characterized in that by mass percentage, by including following components
Raw material be prepared:
0.5%~2% crosslinking agent, 1%~4% gelling agent, 2%~8% solubilizer, 3%~14% cosolvent,
0.08%~0.2% preservative, 3%~5% essence, surplus are water.
3. air freshener according to claim 2, which is characterized in that by mass percentage, by including following components
Raw material be prepared:
1%~1.5% crosslinking agent, 2%~3% gelling agent, 5%~7% solubilizer, 13%~14% cosolvent,
0.09%~0.11% preservative, 3%~3.5% essence, surplus are water.
4. described in any item air fresheners according to claim 1~3, which is characterized in that the equal molecule of the number of the crosslinking agent
Amount is 150000~180000.
5. air freshener according to claim 4, which is characterized in that the number-average molecular weight of the crosslinking agent is 160000
~170000.
6. described in any item air fresheners according to claim 1~3, which is characterized in that the solubilizer is polyoxyethylene
Rilanit special, fatty alcohol polyoxyethylene ether, sorbitan fatty acid ester, in sorbitan fatty acid ester polyoxyethylene ether
One or more kinds of mixtures.
7. air freshener according to claim 6, which is characterized in that the solubilizer is Crodaret
And/or fatty alcohol polyoxyethylene ether.
8. described in any item air fresheners according to claim 1~3, which is characterized in that the cosolvent is ethyl alcohol, the third two
One or more mixtures of alcohol, glycerol.
9. a kind of preparation method of air freshener according to any one of claims 1 to 8, which is characterized in that including following step
It is rapid:
(1) preparation of A phase solution: the gelling agent is first stirred well to clear solution in 70~75 DEG C of suitable quantity of water, so
After be cooled to 35~45 DEG C, insulated and stirred obtains A phase solution；
(2) preparation of B phase solution: the crosslinking agent is stirred in the remaining water of room temperature to clear solution, B phase solution is obtained；
(3) preparation of C phase solution: the solubilizer, cosolvent, essence are mixed, stirs to transparency liquid, obtains C phase solution；
(4) three mix: first the C phase solution being added in the A phase solution, stirs evenly, is maintained at 35~45 DEG C, then
The B phase solution, preservative are added, is stirred evenly；
(5) discharge, be placed in 0~18 DEG C of environment be cooled to solid to get.
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| CN106621761B (en) * | 2016-12-08 | 2019-11-08 | 广东爱车小屋电子商务科技有限公司 | The preparation method of gel air fresher |
| CN106880860A (en) * | 2017-01-18 | 2017-06-23 | 陆开云 | A kind of Luzhou-flavor air freshener |
| CN107519519A (en) * | 2017-09-15 | 2017-12-29 | 海门市琴键农产品有限公司 | A kind of solid air freshening agent |
| CN107973942B (en) * | 2017-11-28 | 2020-09-25 | 嘉兴普元新材料科技有限公司 | Isobutene-maleic anhydride alternating copolymer/sodium alginate hydrogel and preparation method thereof |
| CN107913426A (en) * | 2017-11-28 | 2018-04-17 | 嘉兴普元新材料科技有限公司 | A kind of aromatic and its method |
| CN107737360A (en) * | 2017-11-28 | 2018-02-27 | 嘉兴普元新材料科技有限公司 | A kind of purification of air gel combination and preparation method thereof |
| CN107903410B (en) * | 2017-11-28 | 2020-09-25 | 嘉兴普元新材料科技有限公司 | Isobutene-maleic anhydride alternating copolymer/sodium alginate hydrogel and preparation method thereof |
| CN107929783A (en) * | 2017-11-28 | 2018-04-20 | 嘉兴普元新材料科技有限公司 | A kind of gel combination and preparation method thereof |
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