CN107629251A - Anti-corrosion degradable composite material film for packaging material and preparation method thereof - Google Patents
Anti-corrosion degradable composite material film for packaging material and preparation method thereof Download PDFInfo
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- CN107629251A CN107629251A CN201710814920.0A CN201710814920A CN107629251A CN 107629251 A CN107629251 A CN 107629251A CN 201710814920 A CN201710814920 A CN 201710814920A CN 107629251 A CN107629251 A CN 107629251A
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- bacteria cellulose
- curcumin
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Abstract
The invention provides a kind of anti-corrosion degradable composite material film for packaging material and preparation method thereof, the composite material film primary raw material includes bacteria cellulose and curcumin；Preparation process includes：(1) by bacteria cellulose film, with 0.5 1.5wt% sodium hydrate aqueous solution heating, to seething with excitement, deionized water is cleaned to neutrality, refrigeration, stand-by for boiling repeatedly；(2) 0.5wt% of configuration concentration scope 0.02 curcumin ethanol solution, electromagnetic agitation makes it fully dissolve, by stand-by bacteria cellulose in (1), add in above-mentioned curcumin ethanol solution, ultrasonic disperse, it is cleaned to nondiscoloration, produce bacteria cellulose/curcumin composite material film.The film that the present invention obtains has antiseptic property, is a kind of excellent packaging material, maintains intensity, gas permeability, degradable green environmental protection of bacteria cellulose etc..The present invention also has the advantages of process is simple, technology controlling and process is easy, has prominent application prospect.
Description
Technical field
It is multiple more particularly, to a kind of bacteria cellulose/curcumin the invention belongs to packaging material and its preparing technical field
Condensation material method for manufacturing thin film.
Background technology
Native biopolymer material gets more and more people's extensive concerning in technical field of biological material, and development and application are to tissue work
Journey and other association areas.Numerous native biopolymers, such as collagen, hyaluronic acid, gelatin, chitosan and cellulose etc.
Due to its unique structure, the performance of protrusion and it is green the advantages of, in every field, especially field of tissue engineering technology all
There is good progress.Cellulose is natural biological high polymer extremely abundant on a kind of earth, except plant cellulose, wood
The multiple-microorganisms such as acetobacter, peacock bacillus, agrobacterium also possess the ability of synthetic cellulose, define this fiber
Element is collectively referred to as bacteria cellulose (bacterial cellulose, BC).BC is as structure bionic nano organizational project branch of new generation
The ideal material of frame has many unique performances, its high mechanical properties, contains substantial amounts of intramolecular and intermolecular hydrogen bonding, its poplar
Family name's modulus can be up to 15GPa, high-crystallinity, high-purity (up to 99%, do not contain the impurity such as lignin and hemicellulose), tool
There are preferable three-dimensional net structure and pore structure, high-specific surface area and porosity etc..These outstanding features make it in group
The industries such as engineering field, paper-making industry, membrane material, filtering material, packaging material and battery are knitted all to be widely used, and effect
It is preferable.
The present invention is entered natural drug curcumin inside BC by absorption method in situ, and curcumin is a kind of from some plants
The natural phenolic material of middle extraction.It is quite varied with the multiple functions such as antibacterial, anti-inflammatory, anti-oxidant, antitumor, application.From
Curcumin and BC absorption are compound, and first using BC strong absorption property, curcumin is introduced, obtained with Antimicrobial preservative performance
Degradable BC/ curcumins composite, these excellent performances, it is expected to make it in packaging material or tissue engineering bracket material
Aspect has more excellent performance.
The content of the invention
In view of this, the technical problems to be solved by the invention are intended to propose that a kind of bacteria cellulose/curcumin is compound
Material film preparation method, this method preparation process is simple, and technology controlling and process is easy, prepared bacteria cellulose/curcumin tool
There is antibacterial, anti-inflammatory, anti-mildew, also with bacteria cellulose strong mechanical performance, retentiveness and permeable breathable be high, shape
The advantages that maintenance ability is strong, be it is a kind of have answer promising composite material film.
To achieve the above object, the technical scheme is that：A kind of bacteria cellulose/curcumin composite material film system
Preparation Method, step include：
(1) by bacteria cellulose film, with 0.5-1.5wt% sodium hydrate aqueous solution, boiling is extremely seethed with excitement repeatedly, deionized water
Boiling is cleaned to neutrality, refrigerates, be stand-by；
(2) curcumin powder, configuration concentration 0.02-0.5wt% curcumin ethanol solution, in solution concentration scope are selected
Inside weigh a certain amount of curcumin to add in ethanol solution, turmeric is made using 80-300 revs/min of magnetic stirrer of rotating speed
Element is fully dissolved to transparency liquid；
(3) the stand-by bacteria cellulose that will be treated in (1), add in (2) in the curcumin ethanol solution of configuration, ultrasound
Scattered 5-10 minutes, 5-10 minutes are spaced, take out film after circulating 3-5 times, cleaned with deionized water to nondiscoloration, produce bacterium
Cellulose/curcumin composite material film, according to requirements can drying process or directly use.
In the step (1), bacteria cellulose can directly purchase finished product or the secretion of culture acetobacter xylinum and obtain.
In the step (1), determined from the number of sodium hydroxide solution boiling according to the thickness of bacterial cellulose film
At 3-6 times, visually observe, film is pure.
In the step (2), the purity of curcumin is 90-99%.
In the step (3), the drying mode of bacteria cellulose/curcumin composite material film can use freeze-drying
Mode or direct low temperature drying, freeze-drying first use -50 to -70 DEG C of refrigerator pre-freezes 24 hours, or liquid nitrogen pre-freeze, then use
Freeze drier is dried, and the direct drying temperature scope of low temperature is 50-80 DEG C.
Relative to prior art, a kind of bacteria cellulose/curcumin composite material film of the present invention, have following
Advantage：
(1) present invention can keep the good gas permeability of bacterial fibers, retentiveness and intensity, while introduce curcumin and make
It has the characteristics such as antibacterial, anti-mildew change, anti-inflammatory；
(2) present invention is with preparation process is simple, preparation technology controllability is strong, raw material are easy to get, are nontoxic, be degradable, ring
The advantages that guarantor；
(3) there is good micro nano structure inside bacteria cellulose prepared by the present invention/curcumin composite material film,
Have broad application prospects.
Brief description of the drawings
Fig. 1 is the scanned photograph of bacteria cellulose/curcumin composite material film prepared in embodiment 1.
Embodiment
In addition to being defined, technical term used has universal with those skilled in the art of the invention in following examples
The identical meanings of understanding.Test reagent used, is routine biochemistry reagent unless otherwise specified in following examples；It is described
Experimental method, it is conventional method unless otherwise specified.Embodiment is merely to illustrate the present invention rather than limits the present invention's
Scope.
The present invention is described in detail with reference to embodiment：
Embodiment one
From a diameter of 1cm, thickness is 3mm bacterial cellulose film disk, respectively with mass fraction 1wt% hydrogen-oxygen
Change sodium solution to boil repeatedly to seething with excitement 3 times (reconfiguring sodium hydroxide solution every time), deionized water boiling is cleaned to neutrality；
From the curcumin powder of purity 95%, 0.04g is weighed, is placed in 200ml ethanol solutions, electromagnetism glue stick device is set
Rotating speed be 100 revs/min, stir to solution transparent and stable；
10 neutral bacterial fibers films of above-mentioned cleaning are taken to be placed in curcumin ethanol solution, ultrasonic disperse 5 minutes is quiet
Only 5 minutes, 3 times repeatedly, film is taken out, is cleaned from deionized water stand-by to nondiscoloration, 50 DEG C of drying of low temperature.
Embodiment two
From width 1cm, length 5cm, thickness is 3mm bacterial cellulose film, respectively with mass fraction 1wt% hydrogen
Sodium hydroxide solution is boiled to boiling 4 times (reconfiguring sodium hydroxide solution every time), deionized water boiling and cleaned to neutrality repeatedly；
From the curcumin powder of purity 95%, 0.2g is weighed, is placed in 400ml ethanol solutions, electromagnetism glue stick device is set
Rotating speed be 200 revs/min, stir to solution transparent and stable；
5 neutral bacterial fibers films of above-mentioned cleaning are taken to be placed in curcumin ethanol solution, ultrasonic disperse 8 minutes is quiet
Only 5 minutes, 3 times repeatedly, film is taken out, is cleaned from deionized water to nondiscoloration, -50 DEG C freeze 24 hours, freeze-drying 24
Hour, it is stand-by.
Embodiment three
From a diameter of 2cm, thickness is 5mm bacterial cellulose film disk, respectively with mass fraction 1wt% hydrogen-oxygen
Change sodium solution to boil repeatedly to seething with excitement 5 times (reconfiguring sodium hydroxide solution every time), deionized water boiling is cleaned to neutrality；
From the curcumin powder of purity 95%, 0.2g is weighed, is placed in 100ml ethanol solutions, electromagnetism glue stick device is set
Rotating speed be 220 revs/min, stir to solution transparent and stable；
5 neutral bacterial fibers films of above-mentioned cleaning are taken to be placed in curcumin ethanol solution, ultrasonic disperse 10 minutes is quiet
Only 10 minutes, 3 times repeatedly, film is taken out, is cleaned from deionized water stand-by to nondiscoloration, 50 DEG C of drying of low temperature.
Claims (6)
1. a kind of preparation method of the degradable bacteria cellulose/curcumin composite material film of anti-corrosion for packaging material, bag
Include：
Step 1: by bacteria cellulose film with the heating of 0.5-1.5wt% sodium hydrate aqueous solution repeatedly boiling to seething with excitement, go from
Sub- water is cleaned to neutrality, refrigeration, stand-by；
Step 2: configuration concentration scope 0.02-0.5wt% curcumin ethanol solution, electromagnetic agitation (rotating speed be 80-300 turn/
Minute) make its dissolving fully to transparency liquid；
Step 3: by stand-by bacteria cellulose in (1), add in the curcumin ethanol solution of above-mentioned various concentrations, ultrasonic disperse
5-10 minutes, 5-10 minutes are spaced, take out film after circulating 3-5 times, cleaned with deionized water to nondiscoloration, produce bacterial fibers
Element/curcumin composite material film, use can be dried according to requirements or is directly used.
2. the degradable bacteria cellulose/curcumin composite of the anti-corrosion according to claim 1 for packaging material is thin
The preparation method of film, it is characterised in that：The commercially available finished product of bacteria cellulose or fermented and cultured acetobacter xylinum point in the step (1)
Secrete and obtain.
3. the degradable bacteria cellulose/curcumin composite of the anti-corrosion according to claim 1 for packaging material is thin
The preparation method of film, it is characterised in that：Bacteria cellulose uses the concentration of sodium hydroxide boiling as 0.5- in the step (1)
1.5wt%, boiling process are boiling repeatedly to boiling 4-6 times, deionization boiling to neutrality.
4. the degradable bacteria cellulose/curcumin composite of the anti-corrosion according to claim 1 for packaging material is thin
The preparation method of film, it is characterised in that：Curcumin ethanol solution concentration is 0.02-0.5wt% in the step (2), and electromagnetism stirs
The rotating speed mixed is 80-300 revs/min.
5. the degradable bacteria cellulose/curcumin composite of the anti-corrosion according to claim 1 for packaging material is thin
The preparation method of film, it is characterised in that：Bacteria cellulose needs ultrasonic disperse after adding curcumin ethanol solution in the step (3)
5-10 minutes, 5-10 minutes are spaced, circulate 3-5 times, obtain composite material film.
6. the degradable bacteria cellulose/curcumin composite of the anti-corrosion according to claim 1 for packaging material is thin
The preparation method of film, it is characterised in that：The drying mode of bacteria cellulose/curcumin composite material film in the step (3)
Freeze-drying mode or direct low temperature drying, 50-80 DEG C of temperature can be used.
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| CN201710814920.0A CN107629251A (en) | 2017-09-08 | 2017-09-08 | Anti-corrosion degradable composite material film for packaging material and preparation method thereof |
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| CN201710814920.0A CN107629251A (en) | 2017-09-08 | 2017-09-08 | Anti-corrosion degradable composite material film for packaging material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113024892A (en) * | 2021-03-24 | 2021-06-25 | 上海海洋大学 | Cellulose-based membrane with photodynamic antibacterial activity, preparation and application thereof |
| CN116218042A (en) * | 2022-12-30 | 2023-06-06 | 广东工业大学 | Biodegradable intelligent packaging film material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384957A (en) * | 2015-12-24 | 2016-03-09 | 南京林业大学 | Preparation method of orderly nanofiber membrane based on bacterial cellulose |
| CN105885075A (en) * | 2016-04-06 | 2016-08-24 | 洪思仪 | Preparation method of quasi-chitosan anti-bacterial nanobacterium cellulose |
| CN107298773A (en) * | 2017-06-05 | 2017-10-27 | 江苏大学 | The frequency sweep ultrasonic ripple preparation method of rapeseed protein chitosan nano particle |
-
2017
- 2017-09-08 CN CN201710814920.0A patent/CN107629251A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384957A (en) * | 2015-12-24 | 2016-03-09 | 南京林业大学 | Preparation method of orderly nanofiber membrane based on bacterial cellulose |
| CN105885075A (en) * | 2016-04-06 | 2016-08-24 | 洪思仪 | Preparation method of quasi-chitosan anti-bacterial nanobacterium cellulose |
| CN107298773A (en) * | 2017-06-05 | 2017-10-27 | 江苏大学 | The frequency sweep ultrasonic ripple preparation method of rapeseed protein chitosan nano particle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113024892A (en) * | 2021-03-24 | 2021-06-25 | 上海海洋大学 | Cellulose-based membrane with photodynamic antibacterial activity, preparation and application thereof |
| CN116218042A (en) * | 2022-12-30 | 2023-06-06 | 广东工业大学 | Biodegradable intelligent packaging film material and preparation method thereof |
| CN116218042B (en) * | 2022-12-30 | 2024-03-22 | 广东工业大学 | Biodegradable intelligent packaging film material and preparation method thereof |
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