CN106984511A - Bionical super-hydrophobic interface of edible and preparation method thereof - Google Patents
Bionical super-hydrophobic interface of edible and preparation method thereof Download PDFInfo
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- CN106984511A CN106984511A CN201710283331.4A CN201710283331A CN106984511A CN 106984511 A CN106984511 A CN 106984511A CN 201710283331 A CN201710283331 A CN 201710283331A CN 106984511 A CN106984511 A CN 106984511A
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- edible
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- polysaccharide
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- bionical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
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- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Jellies, Jams, And Syrups (AREA)
Abstract
The invention discloses a kind of bionical super-hydrophobic interface of edible, it is made up of microcosmic micro-nano two-dimensional structure two parts of edible polysaccharide elastic layer and edible wax；Polysaccharide of the edible polysaccharide elastic layer using molecular weight more than 2000 is prepared as raw material；The edible polysaccharide elastic layer is to spray, the method for dip-coating or drop coating is attached to substrate surface；By the micro-nano dimensional structure of the edible wax is with form of suspension dip-coating or is sprayed at the microcosmic micro-nano two-dimensional structure that the elastic layer surface of the edible polysaccharide is the edible wax.Present invention also offers the preparation method at the above-mentioned bionical super-hydrophobic interface of edible.Interface of the present invention meets nontoxic, edible feature；Interface shows as super thin characteristic, such as Yoghourt, honey, fruit juice, royal jelly, tea to multiple fluid food, and static contact angle is more than 150 °, and roll angle is less than 10 °；Interface is applied to a variety of substrate surfaces, such as plastics, metal, paper and timber.
Description
Technical field
The invention belongs to field of food science, and in particular to a kind of design at the bionical super-hydrophobic interface of edible, prepare and
Its application in food storage, packaging field.
Background technology
It is biological in order to adapt to the environment being continually changing by the accumulation of 1 years, evolved form in different poses and with different expressions and
Function.The treasure-house of bio-diversity provides endlessly material and inspiration for researcher.People are various to organism
Special construction and function carry out careful observation and in-depth analysis, Learning from Nature, surmount naturally, and have developed advanced bionical boundary
Face is Scientific Research Service, and convenience is created in production, the life of the more mankind.As its name suggests, bionical interface tech just refers to life
The distinctive function epidermis of object, antenna etc. carry out artificial imitation, constructed, to obtain and organism structure, intimate people
Work interface.Wherein, the bionical interface application of superhydrophobic property is possessed widely.First, super-hydrophobic interface can be with self cleaning
Its spot is attached to, as " the going out mud without dye " of lotus；Secondly, super-hydrophobic interface can also be prepared in metal surface
Play the purpose of waterproof, anti-corrosion and antirust；Third, based on the research to insect, super-hydrophobic interface can also make overwater flight into
For possibility, super-hydrophobic film is prepared in hull surface to reduce resistance and saves the energy.
According to incompletely statistics, number is wasted caused by toppling over not exclusively after the annual storage due to slop in world wide
In terms of hundred million, such as honey, Yoghourt high added value, the fluid food of high viscosity are particularly.And solving problems just becomes
Improve People's livelihood, the primary goal economized on resources.The preparation and application at bionic super-hydrophobic interface, which just become, solves problems
Best approach.However, nanometer, the mineral crystal of micro-meter scale and organic/inorganic compound interface prepared by traditional chemical routes are deposited
Cost is high, processing technology is complicated, be difficult large area production, can not flexible application and the defect such as inedible, it is impossible to apply
In field of food.Therefore, developing a kind of super-hydrophobic interface of bionical edible just becomes a brand-new challenge.
The content of the invention
It is an object of the invention to provide a kind of available for food storage, the super-hydrophobic boundary of bionical edible of packaging field
Face, simultaneously, it is ensured that the super-hydrophobic interface is nontoxic, edible, flexibility and super thin characteristic is shown as to multiple fluid food, prepares work
Skill is simple, cost is low.
To reach above-mentioned purpose, the present invention provides a kind of bionical super-hydrophobic interface of edible, by edible polysaccharide elastic layer
And microcosmic micro-nano two-dimensional structure two parts composition of edible wax；
Polysaccharide of the edible polysaccharide elastic layer using molecular weight more than 2000 is prepared as raw material；The polysaccharide is preferably
One or more combination in starch, modified starch, cellulose, chitosan, xylose, Arabic gum；
The edible polysaccharide elastic layer is to spray, the method for dip-coating or drop coating is attached to substrate surface；The base material is excellent
Choosing includes plastics, metal, paper, glass or timber；
By the micro-nano dimensional structure of the edible wax is with form of suspension dip-coating or is sprayed at many sugarcoated bullets of the edible
Property layer surface is the microcosmic micro-nano two-dimensional structure of the edible wax；The preferred honeycomb of micro-nano dimensional structure of the edible wax
One or more combination in wax, coconut wax, soya wax is prepared for raw material.
Present invention also offers the preparation method at the above-mentioned bionical super-hydrophobic interface of edible, comprise the following steps that：
(1) one or more of polysaccharide mixing of the molecular weight more than 2000 is taken, solvent dissolving is added, is adjusted by solid content
Solution viscosity is to 50~100cps.；By obtained polysaccharide solution to spray, the method for dip-coating or drop coating is made in substrate surface can
Edible polysaccharide elastic layer；
Under preferred embodiment, the polysaccharide is included in starch, modified starch, cellulose, chitosan, xylose, Arabic gum
One or more combination；The solvent includes the one or more combination in water, glycerine, ethanol, acetone, ether；The polysaccharide
The optimal solid content of solution is 2%~25%；The base material includes plastics, metal, paper, timber or glass.
Under preferred embodiment, the spraying parameter is 8~14MPa of air pressure, 1.0~3.0mm of jet hole diameter, reason
By 1.0~60.0m of coating rate2/kg；The dipping process parameter is that Immersion time is 5~20min, pull rate is 0.1~
6.0cm/s；The drop coating technological parameter is 5~150min of Self-leveling time.
(2) the heating melting of edible wax is taken, solvent is subsequently added and is stirred vigorously acquisition edible wax micro-nano dimensional structure
Suspension；By the edible wax micro-nano dimensional structure suspension dip-coating or it is sprayed at many sugarcoated bullets of edible made from step (1)
Property layer surface film forming, as edible wax microcosmic micro-nano two-dimensional structure, the edible polysaccharide elastic layer and edible wax
The combination of microcosmic micro-nano two-dimensional structure is the super-hydrophobic interface of bionical edible.
Under preferred embodiment, the edible wax includes the one or more combination in honeycomb wax, coconut wax, soya wax；Institute
Stating solvent includes the one or more combination in water, glycerine, ethanol, acetone, ether；The edible wax micro-nano dimensional structure hangs
Optimal solid content is 0.1%~5% in supernatant liquid.
Further optimization, step (2) mixing speed being stirred vigorously is 500~5000r/min, and mixing time is 10
~30min；Step (2) described spraying parameter is 8~14MPa of air pressure, 1.0~3.0mm of jet hole diameter, theoretical painting
Cover 1.0~60.0m of rate2/kg；The dipping process parameter is that draw speed is 0.1~6.0cm/s.
The static contact angle of Product Interface and water of the present invention is more than 150 degree, and dynamic rolling angle is below 10 degree.Meanwhile,
The interface shows as super thin characteristic, such as Yoghourt, honey, fruit juice, royal jelly, tea to multiple fluid food.
Compared to prior art, product of the present invention has following advantage：
1st, super-hydrophobic interface of the invention meets nontoxic, edible feature.
2nd, super-hydrophobic interface of the invention shows as super thin characteristic, such as Yoghourt, honey, fruit juice, queen bee to multiple fluid food
Slurry, tea etc.；Static contact angle is more than 150 °, and roll angle is less than 10 °.
3rd, super-hydrophobic interface of the invention is by the super-hydrophobic microstructure of edible wax and edible polysaccharide elastic layer two parts group
Into wherein the super-hydrophobic microstructure of edible wax is implemented on edible polysaccharide elastic layer；The super-hydrophobic interface of the present invention can be steady
Surely a variety of substrate surfaces, such as plastics, metal, paper, timber are attached to.
4th, the present invention adjusts polysaccharide elastic layer solution viscosity by solid content, can obtain preferable film-formation result.
Embodiment
Fig. 1：The surface scan electron microscope at the super-hydrophobic interface of bionical edible prepared by embodiment 1；
Fig. 2：The water contact angle figure at the super-hydrophobic interface of bionical edible prepared by embodiment 1；
Fig. 3：Infiltration behavior of the multiple fluid food of embodiment 1 at the super-hydrophobic interface of bionical edible of preparation；
Fig. 4：The polypropylene cup (left side) at the super-hydrophobic interface of bionical edible prepared by embodiment 2 is bionical edible with not preparing
With the polypropylene cup (right side) at super-hydrophobic interface for the comparing result in honey toppling process；
Fig. 5：The water infiltration behavior of the super-hydrophobic interface of bionical edible prepared by embodiment 3 on flexible parent metal.
Embodiment
Following specific embodiment puts up with the preparation at the super-hydrophobic interface of bionical edible of the present invention and detailed using making
Explanation.But these embodiments are not intended to any mode and limit or limit the scope of the present invention, are also not considered as
Condition, parameter or the data of the present invention can be uniquely put into practice providing.
Embodiment 1
5.0g Arabic gums are dissolved in 20mL water, 40 DEG C are stirred 5 hours.Room temperature is down to, viscous liquid is obtained.Will be viscous
Thick liquid drop coating is placed obtain within 24 hours polysaccharide elastic layer at room temperature in glass sheet surface, standby.3.0g honeycomb waxes are placed in
Heating, drying 1 hour in 60 DEG C of baking ovens, the acquisition in 1 hour of addition 10mL acetone and 5mL ethanol mechanical agitation is then taken out while hot can
Edible wax micro-nano dimensional structure suspension.By 14MPa of air pressure, jet hole diameter 2.0mm, theoretical coating rate 40.0m2/
Kg is standard spray suspension in the elastic layer surface of polysaccharide.The super-hydrophobic boundary of the bionical edible of 24 acquisitions is put in room temperature decentralization after spraying
Face.
Fig. 1 is the surface scan electron microscope at the super-hydrophobic interface of bionical edible prepared by embodiment 1；Fig. 2 is that embodiment 1 is made
The water contact angle figure at the standby super-hydrophobic interface of bionical edible；To find out in terms of Fig. 1, the super-hydrophobic boundary of bionical edible obtained
Face surface is micro-nano two-dimensional structure.To find out in terms of Fig. 2, the bionical super-hydrophobic interface of edible shows as superhydrophobic characteristic.
Fig. 3 is infiltration behavior of the multiple fluid food of embodiment 1 at the super-hydrophobic interface of bionical edible of preparation；By a left side extremely
The right side is respectively Yoghourt, honey, water；To find out in terms of Fig. 3, the bionical super-hydrophobic interface of edible shows as surpassing to multiple fluid food
Dredge characteristic.
Embodiment 2
5.0g Arabic gums are dissolved in 20mL water, 40 DEG C are stirred 5 hours.Room temperature is down to, viscous liquid is obtained.Will be viscous
Thick liquid drop coating is placed in plain polypropylene plastic cup, at room temperature obtains polysaccharide elastic layer for 24 hours, standby.By 3.0g honeybees
Nest wax is placed in heating, drying 1 hour in 60 DEG C of baking ovens, then takes out addition 10mL acetone while hot and 5mL ethanol mechanical agitation 1 is small
When obtain edible wax micro-nano dimensional structure suspension.By 14MPa of air pressure, jet hole diameter 2.0mm, theoretical coating rate
40.0m2/ kg is standard spray suspension in the elastic layer surface of polysaccharide.Room temperature decentralization is put the bionical edible of 24 acquisitions and surpassed after spraying
Hydrophobic interfaces.
Fig. 4 be embodiment 2 prepare the super-hydrophobic interface of bionical edible polypropylene cup (left side) and do not prepare it is bionical can
The polypropylene cup (right side) at super-hydrophobic interface is eaten for the comparing result in honey toppling process；To find out in terms of Fig. 4, possess
The polypropylene cup at the bionical super-hydrophobic interface of edible does not have residual phenomena during honey is toppled over, super without bionical edible
The polypropylene cup residual phenomena of hydrophobic interfaces substantially, wastes serious.
Embodiment 3
2.0g Arabic gums, 3.0g gelatin, 3.0g glycerine are dissolved in 20mL water, 40 DEG C are stirred 5 hours, obtain thick
Liquid.By viscous liquid drop coating in polypropylene plastics tablet surface, place obtain within 24 hours elastic layer at room temperature, it is standby.Will
3.0g coconut palm waxes are placed in heating, drying 1 hour in 60 DEG C of baking ovens, then take out while hot and add 10mL acetone and 5mL ethanol mechanical agitations
Obtain edible wax micro-nano dimensional structure suspension within 1 hour.By 14MPa of air pressure, jet hole diameter 2.0mm, theoretical apply
Cover rate 40.0m2/ kg is standard spray suspension in the elastic layer surface of polysaccharide.To put 24 acquisitions bionical edible for room temperature decentralization after spraying
Use super-hydrophobic interface.
Fig. 5 is the surface water infiltration situation at the super-hydrophobic interface of bionical edible prepared by embodiment 3.As can be seen from Figure 5
The bionical super-hydrophobic interface of edible also shows stronger hydrophobic effect on flexible parent metal.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of super-hydrophobic interface of bionical edible, it is characterised in that by the microcosmic of edible polysaccharide elastic layer and edible wax
Micro-nano two-dimensional structure two parts are constituted；
Polysaccharide of the edible polysaccharide elastic layer using molecular weight more than 2000 is prepared as raw material；
The edible polysaccharide elastic layer is to spray, the method for dip-coating or drop coating is attached to substrate surface；
By the micro-nano dimensional structure of the edible wax is with form of suspension dip-coating or is sprayed at the edible polysaccharide elastic layer
Surface is the microcosmic micro-nano two-dimensional structure of the edible wax.
2. the super-hydrophobic interface of bionical edible according to claim 1, it is characterised in that the polysaccharide is preferably starch, changed
One or more combination in property starch, cellulose, chitosan, xylose, Arabic gum；
The base material preferably includes plastics, metal, paper, glass or timber；
One or more combination in the preferred honeycomb wax of micro-nano dimensional structure of the edible wax, coconut wax, soya wax is original
It is prepared by material.
3. the preparation method at the bionical super-hydrophobic interface of edible described in claim 1, it is characterised in that comprise the following steps that：
(1) one or more of polysaccharide mixing of the molecular weight more than 2000 is taken, solvent dissolving is added, solution is adjusted by solid content
Viscosity is to 50~100cps.；By obtained polysaccharide solution to spray, the method for dip-coating or drop coating edible is made in substrate surface
Polysaccharide elastic layer；
(2) the heating melting of edible wax is taken, solvent is subsequently added and is stirred vigorously the dimensional structure suspension of acquisition edible wax micro-nano
Liquid；By the edible wax micro-nano dimensional structure suspension dip-coating or it is sprayed at edible polysaccharide elastic layer made from step (1)
The microcosmic micro-nano two-dimensional structure of surface filming, as edible wax, the edible polysaccharide elastic layer is microcosmic with edible wax
The combination of micro-nano two-dimensional structure is the super-hydrophobic interface of bionical edible.
4. the preparation method at the super-hydrophobic interface of bionical edible according to claim 3, it is characterised in that step (1) is described
Polysaccharide includes the one or more combination in starch, modified starch, cellulose, chitosan, xylose, Arabic gum；
The solvent includes the one or more combination in water, glycerine, ethanol, acetone, ether；
The base material includes plastics, metal, paper, timber or glass.
5. the preparation method at the super-hydrophobic interface of bionical edible according to claim 4, it is characterised in that step (1) is described
The optimal solid content of polysaccharide solution is 2%~25%.
6. the preparation method at the super-hydrophobic interface of bionical edible according to claim 3, it is characterised in that step (1) is described
Spraying parameter is 8~14MPa of air pressure, 1.0~3.0mm of jet hole diameter, 1.0~60.0m of theoretical coating rate2/kg；
The dipping process parameter is that Immersion time is 5~20min, and pull rate is 0.1~6.0cm/s；
The drop coating technological parameter is 5~150min of Self-leveling time.
7. the preparation method at the super-hydrophobic interface of bionical edible according to claim 3, it is characterised in that step (2) is described
Edible wax includes the one or more combination in honeycomb wax, coconut wax, soya wax；
The solvent includes the one or more combination in water, glycerine, ethanol, acetone, ether.
8. the preparation method at the super-hydrophobic interface of bionical edible according to claim 7, it is characterised in that step (2) is described
Optimal solid content is 0.1%~5% in edible wax micro-nano dimensional structure suspension.
9. the preparation method at the super-hydrophobic interface of bionical edible according to claim 3, it is characterised in that step (2) is acutely
The mixing speed of stirring is 500~5000r/min, and mixing time is 10~30min；
Step (2) described spraying parameter is 8~14MPa of air pressure, 1.0~3.0mm of jet hole diameter, theoretical coating rate
1.0~60.0m2/kg；
The dipping process parameter is that draw speed is 0.1~6.0cm/s.
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Cited By (4)
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| CN108587193A (en) * | 2018-04-16 | 2018-09-28 | 江南大学 | A kind of pair of distributed compound wax emulsion and preparation method thereof |
| CN109233639A (en) * | 2018-08-24 | 2019-01-18 | 大连工业大学 | A kind of preparation method of edible super hydrophobic surface |
| CN110453526A (en) * | 2019-08-19 | 2019-11-15 | 东北林业大学 | A method of utilizing edible used additives building automatically cleaning and super hydrophobic functional paper |
| CN116144061A (en) * | 2023-02-27 | 2023-05-23 | 南京财经大学 | Super-hydrophobic food packaging material with self-cleaning surface and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108587193A (en) * | 2018-04-16 | 2018-09-28 | 江南大学 | A kind of pair of distributed compound wax emulsion and preparation method thereof |
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Application publication date: 20170728 |