CN108976680A - A kind of preparation process being sustained oxidation-resistant film - Google Patents
A kind of preparation process being sustained oxidation-resistant film Download PDFInfo
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- CN108976680A CN108976680A CN201810667946.1A CN201810667946A CN108976680A CN 108976680 A CN108976680 A CN 108976680A CN 201810667946 A CN201810667946 A CN 201810667946A CN 108976680 A CN108976680 A CN 108976680A
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- film
- oxidation
- pva
- resistant film
- inorganic mineral
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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
-
- 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
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The invention discloses a kind of preparation processes for being sustained oxidation-resistant film, specifically describe its preparation process, it is substrate that the present invention, which is prepared using tea polyphenols as antioxidant, PVA, glycerol is plasticizer, is filled using diatomite, three kinds of inorganic mineral fillers to oxidation-resistant film compound.Mechanical property, barrier property, water imbibition and the sustained release performance etc. for studying the montmorillonite and kaolin sustained release oxidation-resistant film change the rate of release of antioxidant tea polyphenols by changing the type of inorganic mineral filler and additive amount in TP/PVA blend film.Purpose is to prepare the blend film with good comprehensive performance, while making it have preferable oxidation resistance and release behavior appropriate, plays the role of extending inner package shelf life.
Description
Technical field
The present invention relates to a kind of preparation processes for being sustained oxidation-resistant film.
Background technique
With the rapid development of social economy, all over the world food production is increasing, modern people's living standard
It increasingly improves, quality and safety issue pay attention to day by day for food, therefore the food of nutrition, health becomes the head of consumer
Select object.Due to being easy to be influenced by external environment during from food production to storage sale, so as to cause food quilt
Oxidative rancidity is not esthetically acceptable to the consumers.The oxidation of lipid not only reduces the nutritive value of food itself, food color in food
Also can be impacted with mouthfeel, it shortens so as to cause the shelf life of food, while certain toxic oxidation products can be generated, to human body
Health damages.Therefore, to avoid because of rotten food caused by foodstuff waste, cause economic loss, current food packaging applications
The hot and difficult issue of research is exactly to use which kind of measure that can effectively prevent Food Oxidation rotten to ensure its quality safety, is risen
To the effect for extending Shelf-life of Food-a Review.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation processes for being sustained oxidation-resistant film, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of preparation process for being sustained oxidation-resistant film, step
It is as follows:
S1 weighs certain mass 1% respectively, and 2%, 3%, 4% diatomite, kaolin and montmorillonite is placed in distilled water, with
350r·mir-1Speed lh is stirred at room temperature in constant temperature blender with magnetic force, break up it sufficiently, be made evenly dispersed inorganic
Mineral filler dispersion liquid；
S2 weighs 0.4%w/v glycerol, 7%W/V PVA and 1%W/V tea polyphenols in beaker under room temperature, and inorganic mineral filler is added
Dispersion liquid is placed in constant temperature blender with magnetic force from room temperature and rises to 85 DEG C, with 350r`min-1, speed stir 3 hours；
S3 will remove standing to defoaming at film liquid from blender, and measuring 20ml slowly uniformly to pour into diameter with graduated cylinder is 150mm
Culture dish in, be placed in 45 DEG C of thermostatic drying chamber and dry 8h i.e. drying and forming-film；
S4, it is 23 DEG C that film, which is placed in temperature, and relative humidity is pre-processed under conditions of being 50%RH.
Compared with prior art, the beneficial effects of the present invention are: present invention preparation is by antioxidant, PVA of tea polyphenols
Substrate, glycerol are plasticizer, are filled using diatomite, three kinds of inorganic mineral fillers to oxidation-resistant film compound.Study the illiteracy
Mechanical property, barrier property, water imbibition and the sustained release performance etc. of de- soil and kaolin sustained release oxidation-resistant film, by changing TP/PVA
The type of inorganic mineral filler and additive amount change the rate of release of antioxidant tea polyphenols in blend film.Purpose is to prepare to provide
There is the blend film of good comprehensive performance, while making it have preferable oxidation resistance and release behavior appropriate, plays extension
The effect of inner package shelf life.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention
A kind of preparation process being sustained oxidation-resistant film, steps are as follows:
S1 weighs certain mass 1% respectively, and 2%, 3%, 4% diatomite, kaolin and montmorillonite is placed in distilled water, with
350r·mir-1Speed lh is stirred at room temperature in constant temperature blender with magnetic force, break up it sufficiently, be made evenly dispersed inorganic
Mineral filler dispersion liquid；
S2 weighs 0.4%w/v glycerol, 7%W/V PVA and 1%W/V tea polyphenols in beaker under room temperature, and inorganic mineral filler is added
Dispersion liquid is placed in constant temperature blender with magnetic force from room temperature and rises to 85 DEG C, with 350r`min-1, speed stir 3 hours；
S3 will remove standing to defoaming at film liquid from blender, and measuring 20ml slowly uniformly to pour into diameter with graduated cylinder is 150mm
Culture dish in, be placed in 45 DEG C of thermostatic drying chamber and dry 8h i.e. drying and forming-film；
S4, it is 23 DEG C that film, which is placed in temperature, and relative humidity is pre-processed under conditions of being 50%RH.
Selecting polyvinyl alcohol is into film base material, and tea polyphenols are antioxidant, and glycerol is that plasticizer prepares oxidation-resistant film, and with
Tensile strength, elongation at break, moisture-vapor transmission, OTR oxygen transmission rate, water absorption rate and the anti-oxidant energy of TP/PVA oxidation-resistant film
Power etc. is index, investigates three glycerol additive amount, PVA solution concentration and tea polyphenols additive amount factor factors to TP/PVA antioxygen
Change the influence of film properties.Optimize oxidation-resistant film preparation by Responds Surface Methodology and show that preferred process parameter is glycerol additive amount
0.4%, PVA solution concentration 7%, tea polyphenols additive amount 1.0%.Simultaneously using infrared spectroscopy, X-ray diffraction analysis to bright TP with
PVA molecule generates interaction, reduces PVA crystallinity, and oxidation-resistant film carries out structural characterization, as a result says the compatibility of the two compared with
It is good.
Selection, which is blended with diatomite, kaolin and montmorillonite with TP/PVA film, to be filled, and is blended by investigating TP/PVA
Tensile strength, elongation at break, moisture-vapor transmission, OTR oxygen transmission rate, inoxidizability, water absorption rate and light transmittance of film etc. refer to
Mark studies influence of the inorganic mineral filler to TP/PVA blend film.And it is aobvious with Fourier transformation infrared spectrometer and scanning electron
Micro mirror characterizes TP/PVA and membrane structure is blended.The result shows that three kinds of inorganic mineral filler fillings improve TP/ to a certain extent
The performances such as barrier property, the water resistance of PVA composite membrane, wherein class montmorillonite filled preferable with 2%, moisture-vapor transmission, the oxygen of film are saturating
Crossing rate, water absorption rate and DPPH free radical scavenging ability does not reduce 7.30%, 7.10%, 9.51% and &39%.But it is excessive plus
Enter and blend film is adversely affected, increases water absorption rate while reducing mechanical property, barrier property and transmitance.TPIPVA
The infrared spectrogram and scanning electron microscope surface structure analysis of blend film show diatomite, kaolin and montmorillonite and TP/
The intermolecular light base of PVA generates certain interaction, and three and TPIPVA composite membrane have good compatibility, and it is flat that film surface is blended
Sliding, there is not obvious cavity and crack in compact structure.
The release performance of TP/PVA blend film is studies have shown that three kinds of inorganic mineral fillers affect to varying degrees
TP/PVA. in composite membrane tea polyphenols release, wherein class montmorillonite filled film effect is more excellent.With the increasing of the additive amount of montmorillonite
Greatly, when native additive amount is 2%, the tea polyphenols rate of release appearance in TP/PVA film first reduces the phenomenon that increasing afterwards, takes off tea when covering
Polyphenol rate of release is minimum, and film has preferable release performance.Find that different environment temperatures has the release of tea polyphenols simultaneously
Larger impact, temperature is higher, and tea polyphenols rate of release is then faster.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (1)
1. a kind of preparation process for being sustained oxidation-resistant film, characterized in that steps are as follows:
S1 weighs certain mass 1% respectively, and 2%, 3%, 4% diatomite, kaolin and montmorillonite is placed in distilled water, with
350r·mir-1Speed lh is stirred at room temperature in constant temperature blender with magnetic force, break up it sufficiently, be made evenly dispersed inorganic
Mineral filler dispersion liquid；
S2 weighs 0.4%w/v glycerol, 7%W/V PVA and 1%W/V tea polyphenols in beaker under room temperature, and inorganic mineral filler is added
Dispersion liquid is placed in constant temperature blender with magnetic force from room temperature and rises to 85 DEG C, with 350r`min-1, speed stir 3 hours；
S3 will remove standing to defoaming at film liquid from blender, and measuring 20ml slowly uniformly to pour into diameter with graduated cylinder is 150mm
Culture dish in, be placed in 45 DEG C of thermostatic drying chamber and dry 8h i.e. drying and forming-film；
S4, it is 23 DEG C that film, which is placed in temperature, and relative humidity is pre-processed under conditions of being 50%RH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667946.1A CN108976680A (en) | 2018-06-26 | 2018-06-26 | A kind of preparation process being sustained oxidation-resistant film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667946.1A CN108976680A (en) | 2018-06-26 | 2018-06-26 | A kind of preparation process being sustained oxidation-resistant film |
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| Publication Number | Publication Date |
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| CN108976680A true CN108976680A (en) | 2018-12-11 |
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| CN201810667946.1A Pending CN108976680A (en) | 2018-06-26 | 2018-06-26 | A kind of preparation process being sustained oxidation-resistant film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116920978A (en) * | 2023-07-10 | 2023-10-24 | 广东顺德中科优联医学检验有限公司 | Light-shielding antioxidant test tube for detecting catecholamine in serum and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949691A (en) * | 2016-06-21 | 2016-09-21 | 安庆市天虹新型材料科技有限公司 | Antibacterial polyvinyl alcohol film |
| CN106810808A (en) * | 2016-12-20 | 2017-06-09 | 安徽省阜阳市国泰彩印包装有限公司 | A kind of degradable plastic sheeting composite of Tea Polyphenols antibacterial and preparation method thereof |
| CN107266721A (en) * | 2017-07-10 | 2017-10-20 | 林毅平 | A kind of antioxidant food packaging film and preparation method thereof |
-
2018
- 2018-06-26 CN CN201810667946.1A patent/CN108976680A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949691A (en) * | 2016-06-21 | 2016-09-21 | 安庆市天虹新型材料科技有限公司 | Antibacterial polyvinyl alcohol film |
| CN106810808A (en) * | 2016-12-20 | 2017-06-09 | 安徽省阜阳市国泰彩印包装有限公司 | A kind of degradable plastic sheeting composite of Tea Polyphenols antibacterial and preparation method thereof |
| CN107266721A (en) * | 2017-07-10 | 2017-10-20 | 林毅平 | A kind of antioxidant food packaging film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 蓝鸿雁: "茶多酚缓释抗氧化膜的制备及其缓释性能研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116920978A (en) * | 2023-07-10 | 2023-10-24 | 广东顺德中科优联医学检验有限公司 | Light-shielding antioxidant test tube for detecting catecholamine in serum and preparation method thereof |
| CN116920978B (en) * | 2023-07-10 | 2024-03-22 | 广东顺德中科优联医学检验有限公司 | Light-shielding antioxidant test tube for detecting catecholamine in serum and preparation method thereof |
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Application publication date: 20181211 |