CN106675057A - Preparation method of hard-shell calcium alginate oil sac - Google Patents
Preparation method of hard-shell calcium alginate oil sac Download PDFInfo
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- CN106675057A CN106675057A CN201710121536.2A CN201710121536A CN106675057A CN 106675057 A CN106675057 A CN 106675057A CN 201710121536 A CN201710121536 A CN 201710121536A CN 106675057 A CN106675057 A CN 106675057A
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- oil
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0084—Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates
Abstract
The invention provides a preparation method of a hard-shell calcium alginate oil sac. The method comprises the following steps: a. preparing emulsion: stirring soluble alginate, liquid oil and deionized water at high speed so as to form the uniform emulsion; b. molding a wet oil sac: dropwise adding the emulsion, obtained in the step a, into a soluble calcium salt solution, and stirring for carrying out reaction to obtain the wet oil sac which takes calcium alginate gel as a shell; c. dehydrating: filtering out the wet oil sac obtained in the step b, and then drying to constant weight so as to obtain the hard-shell calcium alginate oil sac. The oil sac prepared by the method is molded at a time, and the preparation technology is simple; the prepared hard-shell calcium alginate oil sac is controllable in size and uniform in shape; the raw materials used by the preparation method do not need to be specially processed, and the emulsion for preparing the oil sac is formed by directly carrying out high-speed mechanical agitation on the raw materials, so that the use of chemicals such as an emulsifying agent and a surface active agent is avoided, the after-treatment process is simplified, and the after-treatment cost is lowered; the preparation method is easy in raw material obtaining, simple in device, convenient to operate and low in cost, thus being suitable for being widely used.
Description
Technical field
The present invention relates to a kind of preparation method of the oil sac for road engineering asphalt material selfreparing, and in particular to a kind of
The preparation method of duricrust calcium alginate oil sac.
Background technology
Alginic acid is the natural biological polysaccharide extracted from Brown algae or antibacterial.Due to alginate have it is excellent gentle molten
Glue-gel process, relatively low production cost make it suitable as embedding or discharge the capsule of medicine, therefore in chemistry, biological, doctor
The fields such as medicine, food are widely used.But prepared as cyst material with alginate and carry oil capsule in road
Engineering field is used as the self-repair material of asphalt material and is rarely reported.
Existing capsule preparation method thereof is comparatively laborious, and such as Chinese patent CN103041397A, CN103006616A is disclosed
Preparation method be first to prepare dip in a mold after mixed glue solution gum forming, will also be through the step such as pulling out shell, cut, re-assemblying
Capsule is ultimately formed, this capsule needs post forming and process is loaded down with trivial details, is unfavorable for large-scale production.Additive method is used mostly
Emulsifying agent makes emulsion particle, and such as Chinese patent CN104906049A applications emulsifying agent and solvent are mixed into continuous phase, then with
Sodium alginate soln (discrete phase), calcium chloride solution (solidify liquid) are reacted together by micro fluidic device, prepare alginic acid
Sodium microsphere, this capsule simplifies the oil mixing with water of early stage using surfactant, but to the oil-water separation after capsule shaping
It is unfavorable, be difficult to form the oil sac shell with preferable mechanical strength, and add irrelevant material, increased preparation into
This.
Accordingly, it would be desirable to inventing, a kind of raw material is easy to get, device is simple and convenient to operate, duricrust alginic acid calcicoater with low cost
The preparation method of capsule, it is not necessary to add the chemical drugss such as emulsifying agent and surfactant, it is not necessary to introduce acoustic wave device, high pressure micro-
The special instrument such as capsule shaped device, it is not necessary to loaded down with trivial details post forming process, just can prepare with certain thermostability and machine
The duricrust calcium alginate oil sac of tool intensity, and prepared duricrust calcium alginate oil sac can not only be applied to road engineering neck
Domain, the self-repair material as asphalt material, it is also possible to be applied to food, medicine and other needs and use the item for carrying oil capsule
In mesh.
The content of the invention
In view of this, a kind of raw material of present invention offer is easy to get, device is simple and convenient to operate, duricrust Sargassum with low cost
The preparation method of sour calcicoater capsule, the oil sac one-shot forming of preparation, process is simple, it is not necessary to add emulsifying agent and surfactant etc.
Chemical drugss, can just prepare the duricrust calcium alginate oil sac with certain thermostability and mechanical strength.
A kind of preparation method of duricrust calcium alginate oil sac that the present invention is provided, comprises the following steps：
It is prepared by a emulsions：High-speed stirred soluble alginate, fluid oil and deionized water obtain uniform emulsion；
B wet oil capsule molding：Gained emulsion in step a is dropwise added drop-wise in solubility calcium saline solution, stirring reaction is obtained
Shell is the wet oil capsule of calcium alginate gel；
Further, also including step：
C is dehydrated：After the wet oil capsule of gained in step b is leached, it is dried to constant weight, that is, obtains duricrust calcium alginate oil sac；
Further, in step a, first by soluble alginate be added in liquid oil it is fully dispersed after, add from
Sub- water；
Further, in step a, the soluble alginate, fluid oil and deionized water ratio by weight is：2-
4：10-50：100；
Further, in step a, high-speed stirred speed be 3000r/min~5000r/min, the high-speed stirred time be 15~
45min；
Further, in step a, high-speed stirred speed is 4000r/min, and the high-speed stirred time is 30min；
Further, in step b, the concentration of the solubility calcium saline solution is 1%~5%；
Further, in step b, after emulsion is added dropwise to complete, solution is placed at a temperature of 3 DEG C~25 DEG C, stirring reaction 2h~
6h；
Further, described soluble alginate is sodium alginate；Described soluble calcium salt is calcium chloride.
Beneficial effects of the present invention：The present invention is formed by high-speed stirred soluble alginate, fluid oil and distilled water
Uniform emulsion, then gained emulsion is dropwise added drop-wise in solubility calcium saline solution, stirring reaction obtains shell for calcium alginate
The wet oil capsule of gel, then by the drying of wet oil capsule after, that is, it is controllable to obtain size, the uniform duricrust calcium alginate oil sac of profile；This
Oil sac one-shot forming prepared by invention, process is simple；The present invention is raw materials used not to need special handling, directly by high speed machine
Stirring formed for preparing the emulsion of oil sac, it is to avoid use the chemical drugss such as emulsifying agent and surfactant, simplifies the later stage
Processing procedure, reduces post processing cost；And the present invention need not to introduce acoustic wave device, high pressure microcapsule shaped device etc. special
Instrument, it is only necessary to use conventional Laboratory Instruments such as beaker, high shear agitation machine, baking oven etc., simple to operate, low cost
It is honest and clean；The time that the inventive method prepares oil sac is shorter, is adapted to a large amount of productions；The present invention is carried for the preparation of duricrust calcium alginate oil sac
Simpler effective approach is supplied.The present invention it is raw materials used be easy to get, device is simple and convenient to operate, with low cost, with wide
Application prospect, be adapted to commonly use.
Duricrust calcium alginate oil sac size prepared by the present invention is controllable, and profile is uniform, with good thermostability and
Mechanical strength.The intensity of oil sac shell can reasonably be controlled by the inventive method so as to asphalt can be resisted in drip
Green grass or young crops is mixed and stirred, construction rolling, be open to traffic during need the load that bears, and be prepared into oil sac there is good thermostability, can
To ensure its use in asphalt material；The oil sac being prepared by the method for the present invention can be applicable in asphalt, also may be used
It is used as the self-repair material of asphalt material in field of road.The inventive method can also be applied to food, medicine and its
It is needed using the project for carrying oil capsule, is had a extensive future.
Specific embodiment
Technical scheme is described in further detail with reference to specific embodiment：
Embodiment one
A, 2.5 parts of sodium alginate is added in the beaker equipped with 50 portions of Oleum Brassicae campestriss by weight, makes sodium alginate exist
In oil it is fully dispersed after, then in beaker add 100 parts of deionized waters, while being obtained using high shear agitation machine high-speed stirred
Uniform emulsion, mixing speed is 4000r/min, and mixing time is 30min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 2%, after emulsion is added dropwise to complete, solution is placed in into 4 DEG C
At a temperature of, stirring reaction 4h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 50 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape, the average diameter of gained oil sac is 4mm, and the uniaxial compressive power of oil sac is 142.2g.
In the present embodiment, in step a, the time for adding of the emulsion is less than 30min, specifically can be by arranging emulsion droplets
The caliber size of feeder apparatus and/or it is controlled using multiple emulsion Dropping feeders；Because what is formed using high-speed stirred mode
Homogeneous latex emulsion is metastable state, to avoid occurring as soon as oil-water separation in calcium chloride solution is not instilled, so needing emulsion as early as possible
In being added drop-wise to calcium chloride solution；In step b, after emulsion is added dropwise to complete, it is placed in stirring reaction under uniform temperature and shell is obtained for sea
The wet oil capsule of calcium alginate gel, for preparing duricrust calcium alginate oil sac, alr mode now is conventional laboratory blender
Mode.
In the present embodiment, in step a, first by sodium alginate be added in Oleum Brassicae campestriss it is fully dispersed after, add deionization
Water；Sodium alginate can be avoided to be directly added in water the problem for causing viscosity excessive, advantageously reduce the time of high-speed stirred, as early as possible
Homogeneous latex emulsion is obtained, is conducive to shortening the preparation time of duricrust calcium alginate oil sac.
In the present embodiment, in step b, after being added dropwise to complete, stirring reaction at solution is placed in into 4 DEG C is stirred at a lower temperature
Reaction is mixed, calcium alginate long-time immersion breed bacteria can be avoided, affect oil sac strength character and encapsulating effect etc..
In the present embodiment, the calcium chloride solution can enough soak the emulsion of institute's Deca so that sodium alginate and calcium from
Son can fully react, and duricrust calcium alginate oil sac is obtained.
In the present embodiment, in step c, to avoid affecting oil sac performance, wet oil capsule forced air drying temperature is 30 DEG C~80 DEG C,
Constant weight is reached by oil sac drying time to be defined.
In the present embodiment, in step c, forced air drying is carried out by air dry oven.
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, raw materials used sodium alginate and calcium chloride can be easily obtained, with low cost, be adapted to widely use；Adopt
With neutral calcium chloride solution, impact of the Acidity of Aikalinity of solution to oil sac preparation process can be avoided, affect oil sac strength character and
Encapsulating effect etc..
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
In the present embodiment, the jacket ingredients of resulting duricrust calcium alginate oil sac are only calcium alginate；So that prepare
Oil sac good properties, with good thermostability and mechanical strength.
In the present embodiment, prepared duricrust calcium alginate oil sac size is controllable, and its size is instilled the mouth of device by emulsion
The material fiting ratio of footpath size and oil sac is determined.
In the present embodiment, by adjusting material fiting ratio, cyst wall can be prepared there is good thermostability and mechanical strength
Duricrust calcium alginate oil sac, good thermostability can ensure that the use in asphalt material；Wherein：Soluble alginate,
Fluid oil and deionized water ratio by weight is preferably：2-4：10-50：100, more preferably：3-3.5：25-40：100.
In the present embodiment, during other plant oil, animal oil, mineral oil, the artificial oil being in a liquid state under room temperature also may be selected
The mixture replacing Oleum Brassicae campestriss of one or more compositions；Calcium alginate can be used to wrapping up oil that various normal temperature states are liquid to
Duricrust calcium alginate oil sac is prepared, and duricrust calcium alginate oil sac prepared herein is mainly used for Colophonium material in road engineering
The selfreparing of material, therefore above-mentioned fluid oil can be used.
It is raw materials used not need special handling in the present embodiment, directly stir to be formed for preparing oil by high speed machine
The emulsion of capsule, it is to avoid use the chemical drugss such as emulsifying agent and surfactant, simplify end processing sequences, locates after reducing
Reason cost.
In the present embodiment, the oil sac one-shot forming of preparation, preparation time is shorter, obtained duricrust calcium alginate oil sac size
Controllable, profile is uniform.
In the present embodiment, it is not necessary to introduce the special instruments such as acoustic wave device, high pressure microcapsule shaped device, it is only necessary to use
Conventional Laboratory Instruments such as beaker, high shear agitation machine, air dry oven etc., device is simple, with low cost.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
In the present embodiment, the uniaxial compressive power of oil sac determines reference side one et al. and exists《Microcapsule mechanical performance characterizing method
Research》(Beijing Printing Institute's journal, 2008,16 (6)：The single shaft pressure pressing maneuver discussed in 34-37).In electronics day during measure
Flat upper to place a piece of filter paper, oil sac is placed on filter paper, zero suppression, and with a flat probe oil sac is applied pressure to, and is just started on record filter paper
It was observed that load during oil stain, takes the uniaxial compressive power of the meansigma methodss as oil sac of 10 measure.
Embodiment two
A, 2.5 parts of sodium alginate is added in the beaker equipped with 25 parts of mineral oil by weight, makes sodium alginate exist
In oil it is fully dispersed after, then in beaker add 100 parts of deionized waters, while being obtained using high shear agitation machine high-speed stirred
Uniform emulsion, mixing speed is 4000r/min, and mixing time is 30min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 2%, after emulsion is added dropwise to complete, solution is placed in into 4 DEG C
At a temperature of, stirring reaction 4h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 45 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape, the average diameter of gained oil sac is 3mm, and the uniaxial compressive power of oil sac is 439.9g.
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
Embodiment three
A, 3 parts of sodium alginate is added in the beaker equipped with 12.5 parts of synthetic motor oils by weight, makes sodium alginate
In oil it is fully dispersed after, then in beaker add 100 parts of deionized waters, while being obtained using high shear agitation machine high-speed stirred
To uniform emulsion, mixing speed is 4000r/min, and mixing time is 30min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 2%, after emulsion is added dropwise to complete, solution is placed in into 4 DEG C
At a temperature of, stirring reaction 4h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 60 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape, the average diameter of gained oil sac is 2.5mm, and the uniaxial compressive power of oil sac is
929.7g。
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
Example IV
A, 3 parts of sodium alginate is added in the beaker equipped with 10 parts of Semen Maydis oil by weight, makes sodium alginate in oil
In it is fully dispersed after, then in beaker add 100 parts of deionized waters, while being obtained using high shear agitation machine high-speed stirred
Even emulsion, mixing speed is 4000r/min, and mixing time is 30min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 2%, after emulsion is added dropwise to complete, solution is placed in into 4 DEG C
At a temperature of, stirring reaction 4h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 30 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape, the average diameter of gained oil sac is 2mm, and the uniaxial compressive power of oil sac is 1253.5g.
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
Embodiment five
A, 3.5 parts of sodium alginate is added to equipped with 50 parts of miscellas being made up of Oleum Brassicae campestriss and mineral oil by weight
Beaker in, after making sodium alginate fully dispersed in oil, then 100 parts of deionized waters are added in beaker, while using at a high speed
Shear mixer high-speed stirred obtains uniform emulsion, and mixing speed is 4000r/min, and mixing time is 30min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 3%, after emulsion is added dropwise to complete, solution is placed in into 4 DEG C
At a temperature of, stirring reaction 4h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 80 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape.
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
Embodiment six
A, 2 parts of sodium alginate is added to equipped with 10 parts of miscellas being made up of mineral oil and synthetic motor oil by weight
Beaker in, after making sodium alginate fully dispersed in oil, then 100 parts of deionized waters are added in beaker, while using at a high speed
Shear mixer high-speed stirred obtains uniform emulsion, and mixing speed is 5000r/min, and mixing time is 15min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 2%, after emulsion is added dropwise to complete, solution is placed in into 3 DEG C
At a temperature of, stirring reaction 6h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 60 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape.
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
Embodiment seven
A, 4 parts of sodium alginate is added to is made up of mineral oil, synthetic motor oil and Oleum Brassicae campestriss equipped with 50 parts by weight
Miscella beaker in, after making sodium alginate fully dispersed in oil, then in beaker add 100 parts of deionized waters, while
Uniform emulsion is obtained using high shear agitation machine high-speed stirred, mixing speed is 3000r/min, and mixing time is 45min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 5%, after emulsion is added dropwise to complete, solution is placed in into 25 DEG C
At a temperature of, stirring reaction 2h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 60 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape.
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
Embodiment eight
A, 4 parts of sodium alginate is added to equipped with 40 parts of miscellas being made up of Semen Maydis oil and Oleum Brassicae campestriss by weight
In beaker, after making sodium alginate fully dispersed in oil, then 100 parts of deionized waters are added in beaker, while cutting using high speed
Cut blender high-speed stirred and obtain uniform emulsion, mixing speed is 4000r/min, and mixing time is 30min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 1%, after emulsion is added dropwise to complete, solution is placed in into 12 DEG C
At a temperature of, stirring reaction 3h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 30 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape.
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
Embodiment nine
A, 3 parts of sodium alginate is added in the beaker equipped with 30 portions of Oleum Brassicae campestriss by weight, makes sodium alginate in oil
In it is fully dispersed after, then in beaker add 100 parts of deionized waters, while being obtained using high shear agitation machine high-speed stirred
Even emulsion, mixing speed is 3000r/min, and mixing time is 45min；
B, emulsion is dropwise instilled in the calcium chloride solution that concentration is 4%, after emulsion is added dropwise to complete, solution is placed in into 10 DEG C
At a temperature of, stirring reaction 3h promotes oil-water separation, and wet oil capsule of the shell for calcium alginate gel is obtained；
C, by step b gained wet oil capsule leach after, the forced air drying at a temperature of 50 DEG C obtains semi-transparent to oil sac constant weight
The spherical duricrust calcium alginate oil sac of bright shape.
In the present embodiment, the drying mode of wet oil capsule also may be selected vacuum lyophilization in step c.
In the present embodiment, it is also possible to use potassium alginate and substitute sodium alginate, it is also possible to use calcium bicarbonate solution and substitute chlorination
Calcium solution.
It is raw materials used commercially to carry out purchase acquisition in the present embodiment.
Finally illustrate, above example is only unrestricted to illustrate technical scheme, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (9)
1. a kind of preparation method of duricrust calcium alginate oil sac, it is characterised in that：Comprise the following steps：
It is prepared by a emulsions：High-speed stirred soluble alginate, fluid oil and deionized water obtain uniform emulsion；
B wet oil capsule molding：Gained emulsion in step a is dropwise added drop-wise in solubility calcium saline solution, stirring reaction is obtained shell
For the wet oil capsule of calcium alginate gel.
2. the preparation method of duricrust calcium alginate oil sac according to claim 1, it is characterised in that：Also include step：
C is dehydrated：After the wet oil capsule of gained in step b is leached, it is dried to constant weight, that is, obtains duricrust calcium alginate oil sac.
3. the preparation method of duricrust calcium alginate oil sac according to claim 1, it is characterised in that：In step a, first may be used
Solubility alga hydrochlorate be added to it is fully dispersed in liquid oil after, add deionized water.
4. the preparation method of duricrust calcium alginate oil sac according to claim 1, it is characterised in that：In step a, it is described can
Solubility alga hydrochlorate, fluid oil and deionized water ratio by weight is：2-4：10-50：100.
5. the preparation method of duricrust calcium alginate oil sac according to claim 4, it is characterised in that：In step a, high-speed stirring
It is 3000r/min~5000r/min to mix speed, and the high-speed stirred time is 15~45min.
6. the preparation method of duricrust calcium alginate oil sac according to claim 5, it is characterised in that：In step a, high-speed stirring
It is 4000r/min to mix speed, and the high-speed stirred time is 30min.
7. the preparation method of duricrust calcium alginate oil sac according to claim 1, it is characterised in that：In step b, it is described can
The concentration of dissolubility calcium salt soln is 1%~5%.
8. the preparation method of duricrust calcium alginate oil sac according to claim 5, it is characterised in that：In step b, emulsion droplets
Plus after the completion of, solution is placed at a temperature of 3 DEG C~25 DEG C, stirring reaction 2h~6h.
9. the preparation method of the duricrust calcium alginate oil sac according to any one of claim 1-8 claim, its feature
It is：Described soluble alginate is sodium alginate；Described soluble calcium salt is calcium chloride.
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| CN112588539A (en) * | 2020-10-27 | 2021-04-02 | 吉林大学 | Spraying method of anticorrosive paint for inner surface of marine pipeline of ship |
| CN113461976A (en) * | 2021-05-14 | 2021-10-01 | 扬州大学 | Calcium alginate self-healing capsule containing waste oil and preparation method thereof |
| CN113999434A (en) * | 2021-11-10 | 2022-02-01 | 招商局重庆交通科研设计院有限公司 | Preparation method of calcium alginate asphalt self-healing capsule with excellent thermal stability |
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| CN112588539A (en) * | 2020-10-27 | 2021-04-02 | 吉林大学 | Spraying method of anticorrosive paint for inner surface of marine pipeline of ship |
| CN112588539B (en) * | 2020-10-27 | 2021-10-29 | 吉林大学 | Spraying method of anticorrosive paint for inner surface of marine pipeline of ship |
| CN113461976A (en) * | 2021-05-14 | 2021-10-01 | 扬州大学 | Calcium alginate self-healing capsule containing waste oil and preparation method thereof |
| CN113999434A (en) * | 2021-11-10 | 2022-02-01 | 招商局重庆交通科研设计院有限公司 | Preparation method of calcium alginate asphalt self-healing capsule with excellent thermal stability |
| CN113999434B (en) * | 2021-11-10 | 2022-07-05 | 招商局重庆交通科研设计院有限公司 | Preparation method of calcium alginate asphalt self-healing capsule with excellent thermal stability |
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