CN106117609A - A kind of green bio elastomer-modified γ polyglutamic acid grafting arghan packaging film and preparation method thereof - Google Patents
A kind of green bio elastomer-modified γ polyglutamic acid grafting arghan packaging film and preparation method thereof Download PDFInfo
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- CN106117609A CN106117609A CN201610516185.0A CN201610516185A CN106117609A CN 106117609 A CN106117609 A CN 106117609A CN 201610516185 A CN201610516185 A CN 201610516185A CN 106117609 A CN106117609 A CN 106117609A
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- polyglutamic acid
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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
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Biological Depolymerization Polymers (AREA)
Abstract
The invention discloses a kind of green bio elastomer-modified γ polyglutamic acid grafting arghan packaging film, including following parts by weight of component: arghan 118 120, exocellulase 6.5 7, nano medical stone powder 4.8 5, citric acid 45, γ polyglutamic acid 50 51, nano silver particles 4.5 5, Rhizoma amorphophalli powder 3.5 4, curcumin 2.4 2.5, procyanidin 1.5 2, green bio elastomer 25 30, tributyl citrate 3.5 4, octadecanol 34, appropriate deionized water, appropriate water, appropriate glycerol.The present invention uses green bio elastomer, modified γ polyglutamic acid graft modification arghan element to prepare packaging film so that membrane structure is stable, exquisite quality；Green bio elastomer adds toughness and the stretch-proof performance of film；By the hydrophobically modified of nano silver particles inorganic nano ion pair γ polyglutamic acid, increase film sustained-release antibacterial effect.
Description
Technical field
The present invention relates to arghan packaging film technical field, particularly relate to a kind of green bio elastomer-modification γ-
Polyglutamic acid grafting arghan packaging film and preparation method thereof.
Background technology
With cellulose as raw material, the different macromolecule member material of processability is at necks such as medical science, biology and food medicine
Territory plays an important role, and has become as the focus of current research.China often produces substantial amounts of Fructus Ananadis comosi per year, and arghan has
The health-care effecies such as antibacterial, smelly eliminating, utilize arghan to prepare macromolecule member material and have huge development prospect.Pineapple leaves is fine
The fiber macromolecular alignment of dimension crystallization song is neat, regular, and the polyhydroxy structure of fiber molecule and strong hydrogen bonding effect make it clean
Cleanliness and the degree of orientation are higher, and chemical reactivity is low, thus cause its application to be restricted." the agriculture in south such as Wei Xiaoyi, Yang Qin
Journal ", 2016,47(1): 101-106 " arghan element film preparation process optimization " utilizes emulsifying cut mode to make pineapple leaves
Cellulose dissolution improves the chemical reactivity of arghan in ionic liquid, it is achieved the preparation of cellulose membrane, specifically does
Method is: be ground into cotton shape with Universalpulverizer after first being dried by arghan element, and alkali processes and acid treatment realizes it respectively
Purification process, is then being placed in together with ionic liquid in mulser, is carrying out shear treatment, acquisition prepare the cellulose of film from
Sub-liquid homogeneous phase solution, is layered on homogeneous phase solution on the carrier scribbling politef afterwards, through casting solution (glycerol, second
Alcohol) etc. soak drying and forming-film；This process technique improves the chemical reaction activity of arghan element, improves the equal of coating solution
Phase, but operate and employ substantial amounts of acidizer and alkali inorganic agent, adds somewhat to pollute, add Fructus Ananadis comosi
Leaf fibre element film preparation cost, the cellulose membrane function singleness simultaneously prepared.Nano-cellulose have high-crystallinity, high intensity,
The excellent properties such as high-specific surface area, environmental friendliness and low cost, also exist substantial amounts of-OH in its molecular structure, with other skies
So macromole is easily formed intermolecular and intramolecular hydrogen bond when being blended, and when being used for making membrane material, can make the formation of intermingling material
Membrane structure more stable.Gamma-polyglutamic acid-(γ-PGA) is the homopolymer of glutamic acid, is a kind of water soluble polymer, by D-
Glutamic acid or Pidolidone form, by alpha-amido and γ-carboxyl, the anionic polymer that γ-amido link is combined into, and have
The feature features such as good biocompatibility, good water solubility, degradable, edible, film property, as the life of a kind of new green environment protection
Thing material receives much concern, but readily soluble because meeting water, and certain degree limits its application.Micro-nano bubble refers to that diameter is between micron
Bubble (bubble of a diameter of 10-50um in water body) and nano bubble (a diameter of bubble less than 200nm in water body) it
Between bubble, have big specific surface area, can in water body the time of staying long, and micro-nano bubble is when shrinking, it is possible to
Producing substantial amounts of hydroxyl radical free radical, these substantial amounts of hydroxyl radical free radicals can attract the hydrogen in arghan element to a certain extent
Key, plays equivalent acidifying alkalization and destroys the effect that hydrogen bond is identical, the nanorize promoting arghan is improved its chemical reaction
Activity has certain facilitation.
The fibrous membrane that arghan based on modified gamma-polyglutamic acid-and high chemical reactivity combines is to improving Fructus Ananadis comosi
Comprehensive utilization and the abundant packaging film kind of leaf are significant.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of green bio elastomer-modification γ-poly-
Glutamic acid grafting arghan packaging film and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of green bio elastomer-modification gamma-polyglutamic acid-grafting arghan packaging film, including following weight portion group
Point: arghan 118-120, exocellulase 6.5-7, nano medical stone powder 4.8-5, citric acid 4-5, γ-polyglutamic
Acid 50-51, nano silver particles 4.5-5, Rhizoma amorphophalli powder 3.5-4, curcumin 2.4-2.5, procyanidin 1.5-2, green bio are elastic
Body 25-30, tributyl citrate 3.5-4, octadecanol 3-4, appropriate deionized water, appropriate water, appropriate glycerol.
A kind of green bio elastomer-modification gamma-polyglutamic acid-is grafted arghan packaging film preparation method, including with
Lower step:
(1), will arghan dry after become cotton shape by pulverization process 30min in Universalpulverizer, afterwards with citric acid with
And the water mixing and stirring of gross weight 2-3 times to obtain slurry standby；By nano medical stone powder, exocellulase and gross weight
The water mixing and stirring of 1-2 times, be spray-dried modified, high temperature resistant exocellulase is standby；Slurry is heated to 80 DEG C,
And it is continuously added into modified, high temperature resistant exocellulase mix and blend enzymolysis 40min, after 100 DEG C of enzyme denaturing, use funnel sucking filtration to dry
Dry, obtain modified arghan element standby；
(2), the deionized water of nano silver particles, Rhizoma amorphophalli powder and gross weight 2-3 times is mixed, 40 DEG C of heated and stirred uniformly it
After, adding gamma-polyglutamic acid-at 80 DEG C, continues heated and stirred 1h, the least fiery literary composition boils 1-1.2h and obtains inorganic nano-particle and change
The hydrophobic gamma-polyglutamic acid-of property is standby；
(3), by hydrophobic gamma-polyglutamic acid-plain for modification arghan, inorganic nano particle modified, curcumin, procyanidin, green
Stir, then after the deionized water mixing of colour biological elastomer, tributyl citrate, octadecanol and gross weight 3-4 times
Put into and the mulser with intense ultrasonic wave carries out ultrasonic assistant emulsifying shear treatment 40min obtain homogeneous membrane solution for standby, its
Middle ultrasonic power 1000W, emulsifying shear rate 15000r/min；
(4), the deionized water coagulating bath of homogeneous membrane solution is solidified, take out after film water is washed again with the glycerol liquor of concentration 28%-30%
Solution soaks 2h at 40 DEG C and carries out plastics processing, afterwards dried 2h and get final product under 45 DEG C of constant temperature.
The invention have the advantage that
The present invention uses green bio elastomer, modified gamma-polyglutamic acid-graft modification arghan element to prepare packaging film, changes
The high film build synergic nano arghan of property gamma-polyglutamic acid-so that membrane structure is stable, exquisite quality；Green bio
Elastomer, as one of the main component of membrane material, on the one hand adds toughness and the stretch-proof performance of film, on the other hand helps
Homogeneity in the coating solution ensured in emulsifying shear history；By nano silver particles inorganic nano ion pair gamma-polyglutamic acid-
Hydrophobically modified, add its sustained-release antibacterial effect, it is achieved that the gamma-polyglutamic acid-extensive application in packaging film.The present invention
In preparation process, by means of the enzyme that nano medical stone powder is modified, decrease the dirt that traditional fibre element soda acid purification process causes
Dye and expense cost, it is achieved that environmental protection produces, meanwhile, nano medical stone powder synergic nano arghan element is collaborative to be strengthened
The barrier property of film, improves the toughness of film；In preparation process, ultrasonic assistant emulsifying shear treatment one step achieves spinach
The further nanorize of trailing plants leaf fibre and coating solution homogeneous, the micro-nano bubble that intense ultrasonic wave effect produces is in coating solution
Existence, promote the nanorize of arghan, increase its dissolubility, improve the homogeneous degree of coating solution, for cellulose
The uniform and stable of membrane structure provides guarantee, and this physical treatment method decreases conventional homogeneous liquid preparation process intermediate ion liquid
Use.
Detailed description of the invention
A kind of green bio elastomer-modified γ polyglutamic acid grafting arghan packaging film, including following weight portion group
Point: arghan 118, exocellulase 6.5, nano medical stone powder 4.8, citric acid 4, γ polyglutamic acid 50, nanometer silver
Particle 4.5, Rhizoma amorphophalli powder 3.5, curcumin 2.4, procyanidin 1.5, green bio elastomer 25, tributyl citrate 3.5,18
Alcohol 3, appropriate deionized water, appropriate water, appropriate glycerol.
A kind of green bio elastomer-modified γ polyglutamic acid grafting arghan packaging film preparation method, including following
Step:
(1), will arghan dry after become cotton shape by pulverization process 30min in Universalpulverizer, afterwards with citric acid with
And the water mixing and stirring of gross weight 2 times to obtain slurry standby；By nano medical stone powder, exocellulase and gross weight 1
Times water mixing and stirring, be spray-dried modified, high temperature resistant exocellulase is standby；Slurry is heated to 80 DEG C, and holds
Continuous addition modified, high temperature resistant exocellulase mix and blend enzymolysis 40min, after 100 DEG C of enzyme denaturing, uses funnel sucking filtration to dry,
Modified arghan element is standby；
(2), the deionized water of nano silver particles, Rhizoma amorphophalli powder and gross weight 2 times is mixed, 40 DEG C of heated and stirred uniformly it
After, adding γ polyglutamic acid at 80 DEG C, continue heated and stirred 1h, the least fire literary composition boils 1h and obtains inorganic nano particle modified dredging
Water γ polyglutamic acid is standby；
(3), by hydrophobic γ polyglutamic acid plain for modification arghan, inorganic nano particle modified, curcumin, procyanidin, green
Stir after the deionized water mixing of colour biological elastomer, tributyl citrate, octadecanol and gross weight 3 times, then put
Enter the mulser with intense ultrasonic wave is carried out ultrasonic assistant emulsifying shear treatment 40min and obtain homogeneous membrane solution for standby, wherein
Ultrasonic power 1000W, emulsifying shear rate 15000r/min；
(4), the deionized water coagulating bath of homogeneous membrane solution is solidified, take out after film water is washed again with the glycerine water solution of concentration 28%%
Soak 2h at 40 DEG C and carry out plastics processing, afterwards dried 2h and get final product under 45 DEG C of constant temperature.
After tested, the maximum tensile strength of this packaging film is 18.7MPa, and now elongation at break is 32.1%；The minimum of film
OTR oxygen transmission rate is reached for 1.6 × 10-5cm3/(m2D Pa), antibacterial time is up to 65d, after soil buries 150d, its biodegradation
Rate reaches 94%, demonstrates excellent biological degradability.
Claims (2)
1. green bio elastomer-modification gamma-polyglutamic acid-grafting arghan packaging film, it is characterised in that include
Following parts by weight of component: arghan 118-120, exocellulase 6.5-7, nano medical stone powder 4.8-5, citric acid 4-
5, gamma-polyglutamic acid-50-51, nano silver particles 4.5-5, Rhizoma amorphophalli powder 3.5-4, curcumin 2.4-2.5, procyanidin 1.5-2, green
Colour biological elastomer 25-30, tributyl citrate 3.5-4, octadecanol 3-4, appropriate deionized water, appropriate water, appropriate
Glycerol.
2. green bio elastomer-modification gamma-polyglutamic acid-grafting arghan packaging film preparation method, its feature exists
In, comprise the following steps:
(1), will arghan dry after become cotton shape by pulverization process 30min in Universalpulverizer, afterwards with citric acid with
And the water mixing and stirring of gross weight 2-3 times to obtain slurry standby；By nano medical stone powder, exocellulase and gross weight
The water mixing and stirring of 1-2 times, be spray-dried modified, high temperature resistant exocellulase is standby；Slurry is heated to 80 DEG C,
And it is continuously added into modified, high temperature resistant exocellulase mix and blend enzymolysis 40min, after 100 DEG C of enzyme denaturing, use funnel sucking filtration to dry
Dry, obtain modified arghan element standby；
(2), the deionized water of nano silver particles, Rhizoma amorphophalli powder and gross weight 2-3 times is mixed, 40 DEG C of heated and stirred uniformly it
After, adding gamma-polyglutamic acid-at 80 DEG C, continues heated and stirred 1h, the least fiery literary composition boils 1-1.2h and obtains inorganic nano-particle and change
The hydrophobic gamma-polyglutamic acid-of property is standby；
(3), by hydrophobic gamma-polyglutamic acid-plain for modification arghan, inorganic nano particle modified, curcumin, procyanidin, green
Stir, then after the deionized water mixing of colour biological elastomer, tributyl citrate, octadecanol and gross weight 3-4 times
Put into and the mulser with intense ultrasonic wave carries out ultrasonic assistant emulsifying shear treatment 40min obtain homogeneous membrane solution for standby, its
Middle ultrasonic power 1000W, emulsifying shear rate 15000r/min；
(4), the deionized water coagulating bath of homogeneous membrane solution is solidified, take out after film water is washed again with the glycerol liquor of concentration 28%-30%
Solution soaks 2h at 40 DEG C and carries out plastics processing, afterwards dried 2h and get final product under 45 DEG C of constant temperature.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219348A (en) * | 2007-09-12 | 2008-07-16 | 昆山华科生物高分子材料研究所有限公司 | Gama-polyglutamic acid compound film producing method |
| CN103102419A (en) * | 2013-01-25 | 2013-05-15 | 浙江理工大学 | Method for preparing nano microcrystalline cellulose by hydrolyzing phyllostachys edulis fiber with cellulase |
| CN103254469A (en) * | 2013-06-08 | 2013-08-21 | 中国国旅贸易有限责任公司 | Edible film material containing nanocellulose, edible film and preparation method of edible film |
| CN105131632A (en) * | 2015-09-21 | 2015-12-09 | 高瑞杰 | Environment-friendly food package film based on modified elastic aloe gel micro powder and preparation method |
-
2016
- 2016-07-04 CN CN201610516185.0A patent/CN106117609A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219348A (en) * | 2007-09-12 | 2008-07-16 | 昆山华科生物高分子材料研究所有限公司 | Gama-polyglutamic acid compound film producing method |
| CN103102419A (en) * | 2013-01-25 | 2013-05-15 | 浙江理工大学 | Method for preparing nano microcrystalline cellulose by hydrolyzing phyllostachys edulis fiber with cellulase |
| CN103254469A (en) * | 2013-06-08 | 2013-08-21 | 中国国旅贸易有限责任公司 | Edible film material containing nanocellulose, edible film and preparation method of edible film |
| CN105131632A (en) * | 2015-09-21 | 2015-12-09 | 高瑞杰 | Environment-friendly food package film based on modified elastic aloe gel micro powder and preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 张莉等: "纤维素纳米改性技术及其性能研究", 《中国印刷与包装研究》 * |
| 魏晓奕等: "菠萝叶纤维素膜制备工艺优化", 《南方农业学报》 * |
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Application publication date: 20161116 |