CN107652473A - A kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film - Google Patents
A kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film Download PDFInfo
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- CN107652473A CN107652473A CN201710749680.0A CN201710749680A CN107652473A CN 107652473 A CN107652473 A CN 107652473A CN 201710749680 A CN201710749680 A CN 201710749680A CN 107652473 A CN107652473 A CN 107652473A
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- Prior art keywords
- hydroxymethyl cellulose
- degradable
- preparation technology
- packaging film
- certain
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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
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
- C08L1/28—Alkyl ethers
- C08L1/284—Alkyl ethers with hydroxylated hydrocarbon radicals
-
- 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
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/08—Cellulose derivatives
- C08J2301/26—Cellulose ethers
- C08J2301/28—Alkyl ethers
-
- 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
- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
- C08J2305/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film, its preparation method are as follows：A certain amount of hydroxymethyl cellulose is weighed, certain concentration ethanol water is added by a certain percentage, stirs to whole dissolvings.Add a certain amount of chitosan and/or potassium sorbate, 30% polyethylene glycol 400, stir 30 minutes at 60 DEG C.Deaeration processing is carried out with vacuum degasing machine.The coating solution of processing, which is poured on glass, by more than prolongs stream, allows to cool to room temperature.Glass is toasted 5 hours in 45 DEG C.Take off film.The beneficial effects of the present invention are：Using hydroxymethyl cellulose as matrix, using the structure-activity relationship between each composition, help preferably to be prepared into Methyl Cellulose Hydrogel Films by ethanol water, and by optimization, obtain optimal film forming formulation, there is good physical and mechanical properties.Simultaneously, chitosan is added in coating solution, can make film that there is the performance of antibacterial.Increase the application of hydroxymethyl cellulose.
Description
Technical field
The present invention relates to packaging technical field of membrane, more particularly to a kind of system of degradable hydroxymethyl cellulose anti-bacterial packaging film
Standby its preparation process.
Background technology
Carboxymethyl cellulose is a kind of important anionic cellulose ether that natural fiber obtains after chemical modification
Class compound, there is good water-retaining property, film forming, biodegradability and safe and nontoxic, it is extensive in recent years
For meat products, birds, beasts and eggs, fruits and vegetables etc. it is fresh-keeping in.
The antibacterial activity of chitosan is relevant with its positively charged amino, and positively charged amino and electronegative microorganism are thin
After birth interaction causes the increase of microbial cell membrane permeability, and destroying the osmotic equilibrium inside and outside cell membrane causes cell dead
Die.Chitosan can suppress many spoilage organisms, pathogenic bacteria, yeast and fungus growth.It is often added other antibacterial in chitosan film
Agent (such as potassium sorbate, nisin and essential oil) strengthens its bacteriostasis.
The content of the invention
The technical problem to be solved of the present invention is to provide, to solve caused drawbacks described above in the prior art.
In order to realize the purpose of the present invention, a kind of system of degradable hydroxymethyl cellulose anti-bacterial packaging film provided by the invention
Standby technique, its preparation method are as follows：A certain amount of hydroxymethyl cellulose is weighed, it is water-soluble to add certain concentration ethanol by a certain percentage
Liquid, stir to whole dissolvings.Add a certain amount of chitosan and/or potassium sorbate, 30% PEG-4000, stir at 60 DEG C
Mix 30 minutes.Deaeration processing is carried out with vacuum degasing machine.The coating solution of processing is poured into special glass clamping plate by more than, makes its cold
But to room temperature.Glass plywood is removed, toasted 5 hours at 45 DEG C.Room temperature is cooled to, glass clamp is opened, takes off film.
Preferably, the certain proportion is that to add ethanol water be 100ml-10L, preferably for every 100g hydroxymethyl celluloses
For 2L-5L.
Preferably, the ethanol water of the certain concentration, the concentration of ethanol can be 1%-20%, preferably 5%-
10%.
Preferably, the addition for adding a certain amount of chitosan and/or potassium sorbate can be final concentration 0.1%-
10%, preferably 1%-5%.
The beneficial effects of the present invention are：Using hydroxymethyl cellulose as matrix, using the structure-activity relationship between each composition, lead to
Cross ethanol water to help preferably to be prepared into Methyl Cellulose Hydrogel Films, and by optimization, obtain optimal film forming formulation, have good
Physical and mechanical properties.Simultaneously, chitosan is added in coating solution, can make film that there is the performance of antibacterial.Increase hydroxyl first
The application of base cellulose.
Brief description of the drawings
Fig. 1 is the preparation technology flow chart of hydroxymethyl cellulose film.
Embodiment
The present invention is described in further details below by embodiment.
Case study on implementation 1：
Take 100g hydroxymethyl celluloses to be added to 3L 10% ethanol water, stir to whole dissolvings.Add 3% shell
Glycan, 30% PEG-4000, stir 30 minutes at 60 DEG C.Deaeration processing is carried out with vacuum degasing machine.Handled by more than
Coating solution pour into special glass clamping plate, allow to cool to room temperature.Glass plywood is removed, toasted 5 hours at 45 DEG C.Cooling
To room temperature, glass clamp is opened, takes off film.
Case study on implementation 2：
Take 100g hydroxymethyl celluloses to be added to 3L 10% ethanol water, stir to whole dissolvings.Add 3% shell
Glycan and potassium sorbate mixture, both ratios are 1:1,30% PEG-4000, stir 30 minutes at 60 DEG C.With vacuum
Deaeration machine carries out deaeration processing.The coating solution of processing is poured into special glass clamping plate by more than, allows to cool to room temperature.By glass
Clamping plate is removed, and is toasted 5 hours at 45 DEG C.Room temperature is cooled to, glass clamp is opened, takes off film.
Case study on implementation 3：
Take 100g hydroxymethyl celluloses to be added to 5L 8% ethanol water, stir to whole dissolvings.3% shell is added to gather
Sugar and potassium sorbate mixture, both ratios are 1:1,30% PEG-4000, stir 30 minutes at 60 DEG C.Taken off with vacuum
Bubble machine carries out deaeration processing.The coating solution of processing is poured into special glass clamping plate by more than, allows to cool to room temperature.By glass clamp
Plate is removed, and is toasted 5 hours at 45 DEG C.Room temperature is cooled to, glass clamp is opened, takes off film.
Case study on implementation 4：
Take 100g hydroxymethyl celluloses to be added to 5L 8% ethanol water, stir to whole dissolvings.Add 3% sorb
Sour potassium mixture, 30% PEG-4000, stir 30 minutes at 60 DEG C.Deaeration processing is carried out with vacuum degasing machine.Will be with
The coating solution of upper processing is poured into special glass clamping plate, allows to cool to room temperature.Glass plywood is removed, it is small in 45 DEG C of bakings 5
When.Room temperature is cooled to, glass clamp is opened, takes off film.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, for each side, all it is merely illustrative, is not only.Institute
Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.
Claims (4)
1. a kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film, it is characterised in that specific preparation method is as follows：
(1) a certain amount of hydroxymethyl cellulose is weighed, adds certain concentration ethanol water by a certain percentage, is stirred to all molten
Solution；
(2) add a certain amount of chitosan and/or potassium sorbate, 30% PEG-4000, stir 30 minutes at 60 DEG C；
(3) deaeration processing is carried out with vacuum degasing machine；
(4) coating solution handled by more than, which is poured on glass, prolongs stream, allows to cool to room temperature；
(5) glass is toasted 5 hours in 45 DEG C, takes off film.
2. a kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film according to claim 1, its feature exist
In：The certain proportion is that every 100g hydroxymethyl celluloses addition ethanol water is 100ml-10L.
3. a kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film according to claim 1, its feature exist
In：The ethanol water of the certain concentration, the concentration of ethanol is 1%-20%.
4. a kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film according to claim 1, its feature exist
In：The addition for adding a certain amount of chitosan and/or potassium sorbate is final concentration 0.1%-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749680.0A CN107652473A (en) | 2017-08-28 | 2017-08-28 | A kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749680.0A CN107652473A (en) | 2017-08-28 | 2017-08-28 | A kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107652473A true CN107652473A (en) | 2018-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710749680.0A Pending CN107652473A (en) | 2017-08-28 | 2017-08-28 | A kind of preparation technology of degradable hydroxymethyl cellulose anti-bacterial packaging film |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788693A (en) * | 2015-03-28 | 2015-07-22 | 桐城市新丰彩印包装有限公司 | Preparation method of renewable and degradable packaging film |
| CN105131338A (en) * | 2015-08-18 | 2015-12-09 | 南宁市聚祥塑料制品有限责任公司 | Edible packing material |
-
2017
- 2017-08-28 CN CN201710749680.0A patent/CN107652473A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788693A (en) * | 2015-03-28 | 2015-07-22 | 桐城市新丰彩印包装有限公司 | Preparation method of renewable and degradable packaging film |
| CN105131338A (en) * | 2015-08-18 | 2015-12-09 | 南宁市聚祥塑料制品有限责任公司 | Edible packing material |
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Application publication date: 20180202 |
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