CN106854292A - A kind of preparation method of the anti-bacterial packaging film based on montmorillonite - Google Patents
A kind of preparation method of the anti-bacterial packaging film based on montmorillonite Download PDFInfo
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- CN106854292A CN106854292A CN201611243396.8A CN201611243396A CN106854292A CN 106854292 A CN106854292 A CN 106854292A CN 201611243396 A CN201611243396 A CN 201611243396A CN 106854292 A CN106854292 A CN 106854292A
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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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
- 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
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- 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
- C08K5/13—Phenols; Phenolates
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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
- C08K5/13—Phenols; Phenolates
- C08K5/136—Phenols containing halogens
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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Abstract
The invention discloses a kind of preparation method of the anti-bacterial packaging film based on montmorillonite, comprise the following steps：Represent by weight（a）Small molecule organic antibacterial agent is stirred and mixed in ethanol with montmorillonite, and centrifugation is made the montmorillonite material for loading small molecule organic antibacterial agent；（b）By step（a）The montmorillonite of the loading small molecule organic antibacterial agent being made, is added in resin, adds HDI curing agent, is made the antimicrobial coating of packaging film；（c）By step（b）Obtained antimicrobial coating is coated on conventional PET packaging films, and drying is obtained anti-bacterial packaging film.Antiseptic is coated on packaging film can effectively reduce the consumption of preservative in the commodity such as food, facial mask essence；Small molecule organic antibacterial agent is loaded in inside the meso-hole structure of montmorillonite the rate of release that can slow down small molecule organic antibacterial agent simultaneously, reduces toxicity and improves the shelf-life.
Description
Technical field
The invention belongs to antimicrobial packaging technical field, the preparation side of more particularly to a kind of anti-bacterial packaging film based on montmorillonite
Method.
Background technology
With the development of science and technology and the improvement of people's living standards, the health perception of people constantly strengthens, to articles for daily use
Especially food security and environment sustainable development give more concerns.
All ensure that antibacterial is protected in articles for daily use in existing market, including food, cosmetics containing substantial amounts of preservative
The effect of matter.Therefore this problem is directed to, the method for main flow is exploitation antimicrobial packaging, to reduce the use of preservative, is saved into
This environmental protection and health.
Small molecule organic antibacterial agent is current most popular antiseptic, because its effect with low cost is powerful.Extensively
Anti-microbial property, effectively suppress staphylococcus aureus, Escherichia coli, the harmful microorganism such as mould, while the effect of antibacterial is bright
Really, efficiently, quickly.But these chemicals easily cause environmental pollution and the health to human body simultaneously certain harm
Effect.
Montmorillonite is surface electronegative silicate lamella of the class by nano thickness, the heap by the electrostatic interaction of interlayer
The earthy mineral that product is constituted together, the structure cell in its crystal structure is by one layer of alumina octahedral of folder in the middle of two-layer silicon-oxy tetrahedron
Body is constituted.With unique one-dimensional layered nano-structure and cation exchange characteristic, so that it is many modified to assign montmorillonite
May be with the expansion of application field.Because its receive stratiform rice structure characteristic, the organic antibacterial agent of small molecule can be loaded it
In, so as to protect antiseptic, it is not inactivated during coating packaging film while also can effectively control antiseptic
Rate of release, extends the expiration date.
The content of the invention
A kind of preparation method of it is an object of the invention to provide simple general-purpose, anti-bacterial packaging film based on montmorillonite.
In order to realize the purpose of foregoing invention, the present invention provides following technical scheme：
A kind of preparation method of the anti-bacterial packaging film based on montmorillonite, comprises the following steps：
（a）0.5-2.5 parts of small molecule organic antibacterial agent is stirred and mixed in ethanol with 100 parts of montmorillonites, and it is small that centrifugation is made loading
The montmorillonite material of molecule organic antibacterial agent；The particle diameter of the montmorillonite is less than 25 nanometers；
（b）By 5 parts through step（a）The montmorillonite of the loading small molecule organic antibacterial agent being made, is added in 10 parts of hydroxy resins,
Add 12-15 parts of HDI curing agent and stirring solvent is well mixed, be made the antimicrobial coating of packaging film；
（c）By step（b）Obtained antimicrobial coating is coated on PET packaging films, and drying is obtained anti-bacterial packaging film；The antibacterial bag
The thickness for filling film is 20 ~ 50 μm.
Small molecule organic antibacterial agent can be divided into phenols, aldehydes, organic acid, lipid, peroxide ring by molecular structure
Oxide-based, imidazoles, thiazoles, nitrile, pyridines, triazines, quaternary ammonium salt, organic metal class, biguanides etc.；This hair
Which kind of small molecule organic antibacterial agent is bright technical scheme is not limited using.Analyzed from microstructure, used in the present invention
Montmorillonite aperture is about tens nanometers, can load the molecule no more than 500,000 molecular weight.The specific small molecule that the present invention is enumerated has
Machine antiseptic only for citing, is not constituted to the limitation in the selection of small molecule organic antibacterial agent.
The medium effect of mixing is functioned only as due to ethanol, its usage amount has no strict demand, the consumption model that can be selected
Enclose wider；Preferably, the step（a）Middle ethanol consumption is 50 ~ 100 parts.The small molecule organic antibacterial agent and montmorillonite
Number is mass parts, and ethanol consumption is parts by volume；When small molecule organic antibacterial agent and the usage amount of montmorillonite are " gram ", correspondence
Ethanol consumption be " milliliter ".
Preferably, the step（a）In small molecule organic antibacterial agent include isopropanol, 3 methyl 4 isopropyl phenol,
Cresols, propionic acid, potassium sorbate, p-hydroxybenzoate, N- (fluorine dichloromethyl sulphur) titanium acid imide, 2-（4- thiazolyls）Benzo
Imidazoles, the ketone of 2- n-octyl -4- isothiazolines -3, the different peptide nitrile of 2,3,5,6- tetrachloros, methylene cyanate, 2- pyridols -1- oxidations
Sodium, N, N ＇ N "-trihydroxy Hexahydrotriazines, benzyldimethyldodecylammonium ammonium chloride, copper 8-quinolinolate, 1,1- hexamethylene bis
One or more in [5- (4- chlorphenyls) biguanides] digluconate or triclosan.
Preferably, the step（b）Hydroxy resin be PEPA or Hydroxylated acrylic resin.
Preferably, the step（a）The actual conditions of middle mixing is as follows：Small molecule organic antibacterial agent and montmorillonite are in ethanol
In with rotating speed mixing 0.5-4 hours of 600-2000rmp；It is centrifuged 20-40 minutes with the rotating speed of 8000-12000rmp after mixing.
Rotating speed is too low in blend step can be such that the small molecule organic antibacterial agent sufficiently cannot mixes with montmorillonite；And in centrifugation step, such as
When fruit centrifugation time is less than 20 minutes, solution is not sufficiently separated；During more than 40 minutes, the small molecule organic antibacterial agent meeting of loading
Depart from from montmorillonite inside.
Preferably, the step（b）Middle resin is 1 with the mass ratio of HDI curing agent：0.67-1：1.5.The ratio of curing agent
When example is more than 1.5, mixed liquor can be caused to solidify soon, mobility is very poor；When the ratio of curing agent is less than 0.67, mixed solution
It is not easy dry, it is necessary to the time of hour unit could dry, loses time.It is highly preferred that curing agent is with the mass ratio of resin
1：0.8-1：1.2.
Preferably, the step（b）Middle solvent load is 5 ~ 20 parts.The number of the hydroxy resin and HDI curing agent is
Mass parts, solvent load is parts by volume；When the usage amount of hydroxy resin and HDI curing agent is " gram ", corresponding solvent load
It is " milliliter ".
Preferably, the step（b）The solvent that middle resin curing agent is used in mixed way with montmorillonite is mixed for toluene-ethyl acetate
Bonding solvent, toluene and the volume ratio of ethyl acetate are 1 in the mixed solvent：4~2：4.
Preferably, the step（b）The middle montmorillonite for loading small molecule organic antibacterial agent, hydroxy resin and HDI curing agent
The rotating speed of mixing is 600-2000rmp, and the time is 1-4 hours.It is scattered not uniform enough when rotating speed is higher than 2000；Rotating speed is less than
When 600, it is unfavorable for coating, film can be thicker.
Preferably, the step（c）Middle antimicrobial coating is coated 2-4 times on a pet film.Ensure the suitable thickness of coating, apply
That smears it is critical only that from the bottom up, once smear, it is ensured that uniform, not carry out up and down repeatedly, can so ensure that repeatability is controllable
Property.Most preferably, antimicrobial coating is coated 3 times on a pet film.
Preferably, antimicrobial coating is coated on the PET packaging films using knife type coater.
Preferably, the step（c）The temperature of middle drying is 70-90 DEG C, and the time is 8-15 minutes.The temperature of drying is higher than
90 DEG C, when the time was more than 15 minutes, it is unfavorable for combining closely for coating and resin；Temperature is less than 70 DEG C, and the time is less than 8 minutes
When, coating is not dried completely.Most preferably, drying temperature is 80 DEG C, and the time is 10 minutes.
The anti-bacterial packaging film of preparation carries out the test of anti-microbial property to it, and succusion and inhibition zone method has been respectively adopted, side
Recommendation method of testing of the method with reference to the non-dissolving type antibiosis knitting product of FZ/T 73023- 2006.
The beneficial effects of the present invention are：The present invention is simple to operate, it is not necessary to complicated Film forming operations, goes to prepare macromolecule
Film, it is only necessary to mixed by simple stirring, smearing drying can be achieved with；Different small molecule organic antibacterial agents, and it is different
Package resin film anti-bacterial packaging film can be prepared according to method of the present invention, the present invention has good versatility.
Meanwhile, the present invention improves the practicality of organic molecule antiseptic using montmorillonite, anti-to organic molecule by montmorillonite
The loading of microbial inoculum can protect organic molecule antiseptic, it is to avoid it is inactivated in whole preparation process because high temperature is dried, together
When can avoid its quick release in actual use, harm health and reduce the shelf-life.Slow release can be continued
Antimicrobial molecule, plays the effect of antibacterial to reduce the use of preservative in daily product in existing market.The antimicrobial packaging being made
Film can effectively reduce the use of preservative, and reduces cost reduces the harm to human body.
Brief description of the drawings
Accompanying drawing is the antibacterial effect of the antibacterial PET film prepared by embodiment 1, and test bacterium is Escherichia coli, wherein：
Fig. 1 is control group, using the PET packaging films without antimicrobial coating；
Fig. 2 is the anti-bacterial packaging film group of embodiment 1 tested using succusion；
Fig. 3 is the anti-bacterial packaging film group of embodiment 1 tested using inhibition zone method.
Specific embodiment
To enable the above objects, features and advantages of the present invention more obvious understandable, with reference to of the invention specific
Implementation method is described in detail.Elaborate many details in order to fully understand the present invention in the following description.But
It is that the present invention can be implemented with being much different from other modes described here, those skilled in the art can be without prejudice to originally
Similar improvement is done in the case of invention intension, therefore the present invention is not limited by following public specific implementation.
Below by embodiment, the present invention will be further described.
Embodiment 1
Weigh 2g triclosans and 100g montmorillonites respectively in proportion, add in 50ml ethanol, mixing is stirred with the speed of 1000rmp
2 hours, the ethanol of supernatant is removed with the centrifugation 30 minutes of 10000rmp in Ultracentrifuge afterwards, filled
Carry the montmorillonite material of small molecule organic antibacterial agent；
Weigh the montmorillonite of the loading triclosan being made in 5g above-mentioned steps, and 10g Hydroxylated acrylic resins and 12g HDI
Curing agent, adds in 5ml toluene ethyl acetate mixed solutions, is mixed 4 hours with the speed stirring of 1000rmp, is made packaging film
Antimicrobial coating；Toluene and the volume ratio of ethyl acetate are 1 in toluene ethyl acetate mixed solution：4；
Antimicrobial coating obtained in above-mentioned steps is uniform, it is coated in the way of from the bottom up on conventional PET packaging films, it is ensured that
The amount for applying every time is consistent, the consistency of thickness of smearing, and after the operation of smearing is repeated 3 times, the packaging film that will be coated is put into 80 DEG C of baking ovens
Middle drying 15 minutes, just can be obtained anti-bacterial packaging film.Obtained anti-bacterial packaging film verifies there is good antibacterial by antibacterial test
Performance.
Embodiment 2
Weigh 0.5g triclosans and 100g montmorillonites respectively in proportion, add in 100ml ethanol, stirred with the speed of 1000rmp
Mixing 0.5 hour, removes the ethanol of supernatant in Ultracentrifuge with the centrifugation 20 minutes of 10000rmp afterwards,
Obtain loading the montmorillonite material of small molecule organic antibacterial agent.
Weigh the montmorillonite of the loading triclosan being made in 5g above-mentioned steps, and 10g polyester polyol resins and 15g
HDI curing agent, adds in 20ml toluene ethyl acetate mixed solutions, is mixed 3 hours with the speed stirring of 1000rmp, is made bag
Fill the antimicrobial coating of film；Toluene and the volume ratio of ethyl acetate are 2 in toluene ethyl acetate mixed solution：4；
Antimicrobial coating obtained in above-mentioned steps is uniform, it is coated in the way of from the bottom up on conventional PET packaging films, it is ensured that
The amount for applying every time is consistent, the consistency of thickness of smearing, and after the operation of smearing is repeated 2 times, the packaging film that will be coated is put into 70 DEG C of baking ovens
Middle drying 10 minutes, just can be obtained anti-bacterial packaging film.Obtained anti-bacterial packaging film verifies there is good antibacterial by antibacterial test
Performance.
Embodiment 3
Weigh 2.5g triclosans and 100g montmorillonites respectively in proportion, add in 60ml ethanol, mixed with the speed stirring of 2000rmp
Close 4 hours, the ethanol of supernatant is removed with the centrifugation 40 minutes of 10000rmp in Ultracentrifuge afterwards, obtain
Load the montmorillonite material of small molecule organic antibacterial agent.
Weigh the montmorillonite of the loading triclosan being made in 5g above-mentioned steps, and 10g Hydroxylated acrylic resins and
14gHDI curing agent, adds in 10ml toluene-ethyl acetate mixed solutions, is mixed 3 hours with the speed stirring of 2000rmp, system
Into the antimicrobial coating of packaging film；Toluene and the volume ratio of ethyl acetate are 2 in toluene ethyl acetate mixed solution：4；
Antimicrobial coating obtained in above-mentioned steps is uniform, it is coated in the way of from the bottom up on conventional PET packaging films, it is ensured that
The amount for applying every time is consistent, the consistency of thickness of smearing, and after the operation of smearing is repeated 4 times, the packaging film that will be coated is put into 90 DEG C of baking ovens
Middle drying 15 minutes, just can be obtained anti-bacterial packaging film.Obtained anti-bacterial packaging film verifies there is good antibacterial by antibacterial test
Performance.
Embodiment 4
Weigh 1.5g3- methyl -4- isopropyl-phenols and 100g montmorillonites respectively in proportion, in addition 50ml ethanol, with
The speed stirring mixing of 1000rmp 3 hours, afterwards with the centrifugation 30 minutes of 10000rmp in Ultracentrifuge, moves
The ethanol of supernatant is removed, obtains loading the montmorillonite material of small molecule organic antibacterial agent.
Weigh the montmorillonite of the loading 3 methyl 4 isopropyl phenol being made in 5g above-mentioned steps, and 10g hydroxies
Acid resin and 13 parts of HDI curing agent, add in 10ml toluene-ethyl acetate mixed solutions, are mixed with the speed stirring of 1000rmp
Close 4 hours, be made the antimicrobial coating of packaging film；Toluene and the volume ratio of ethyl acetate are 1 in toluene ethyl acetate mixed solution：
4；
Antimicrobial coating obtained in above-mentioned steps is uniform, it is coated in the way of from the bottom up on conventional PET packaging films, it is ensured that
The amount for applying every time is consistent, the consistency of thickness of smearing, and after the operation of smearing is repeated 3 times, the packaging film that will be coated is put into 90 DEG C of baking ovens
Middle drying 10 minutes, just can be obtained anti-bacterial packaging film.Obtained anti-bacterial packaging film verifies there is good antibacterial by antibacterial test
Performance.
Embodiment 5
Weigh 2g potassium sorbates and 100g montmorillonites respectively in proportion, add in 100ml ethanol, stirred with the speed of 2000rmp
Mixing 1 hour, removes the ethanol of supernatant in Ultracentrifuge with the centrifugation 30 minutes of 10000rmp afterwards, obtains
To the montmorillonite material for loading small molecule organic antibacterial agent.
Weigh the montmorillonite of the loading potassium sorbate being made in 5g above-mentioned steps, and 10g Hydroxylated acrylic resins and 14g
HDI curing agent, in adding the toluene-ethyl acetate mixed solution of 20g, with the speed of 2000rmp stirring mixing 2 hours, system
Into the antimicrobial coating of packaging film；Toluene and the volume ratio of ethyl acetate are 1 in toluene ethyl acetate mixed solution：4；
Antimicrobial coating obtained in above-mentioned steps is uniform, it is coated in the way of from the bottom up on conventional PET packaging films, it is ensured that
The amount for applying every time is consistent, the consistency of thickness of smearing, and after the operation of smearing is repeated 3 times, the packaging film that will be coated is put into 80 DEG C of baking ovens
Middle drying 10 minutes, just can be obtained anti-bacterial packaging film.Obtained anti-bacterial packaging film verifies there is good antibacterial by antibacterial test
Performance.
The above case study on implementation only expresses several embodiments of the invention, and its description is more specific and detailed, but
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for the ordinary skill people of this area
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection domain.Therefore, the protection domain of patent of the present invention should be defined by appended claim.
Claims (10)
1. a kind of preparation method of the anti-bacterial packaging film based on montmorillonite, it is characterised in that comprise the following steps：
（a）0.5-2.5 parts of small molecule organic antibacterial agent is stirred and mixed in ethanol with 100 parts of montmorillonites, and it is small that centrifugation is made loading
The montmorillonite material of molecule organic antibacterial agent；The particle diameter of the montmorillonite is less than 25 nanometers；
（b）By 5 parts through step（a）The montmorillonite of the loading small molecule organic antibacterial agent being made, is added in 10 parts of hydroxy resins,
Add 6-15 parts of HDI curing agent and stirring solvent is well mixed, be made the antimicrobial coating of packaging film；
（c）By step（b）Obtained antimicrobial coating is coated on PET packaging films, and drying is obtained anti-bacterial packaging film；The antibacterial bag
The thickness for filling film is 20 ~ 50 μm.
2. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：The step（a）In small point
Sub- organic antibacterial agent include isopropanol, 3 methyl 4 isopropyl phenol, cresols, propionic acid, potassium sorbate, p-hydroxybenzoate,
N- (fluorine dichloromethyl sulphur) titanium acid imide, 2-（4- thiazolyls）Benzimidazole, the ketone of 2- n-octyl -4- isothiazolines -3,2,3,5,
The different peptide nitrile of 6- tetrachloros, methylene cyanate, 2- pyridol -1- sodium oxide molybdenas, N, N ＇ N "-trihydroxy Hexahydrotriazines, benzyl dimethyl
Lauryl ammonium chloride, copper 8-quinolinolate, 1,1- hexamethylene bis [5- (4- chlorphenyls) biguanides] digluconate or three
One or more in chlorine life.
3. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：The step（b）Hydroxyl tree
Fat is PEPA or Hydroxylated acrylic resin.
4. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：The step（a）Middle mixing
Actual conditions is as follows：Small molecule organic antibacterial agent and montmorillonite are small with the rotating speed mixing 0.5-4 of 600-2000rmp in ethanol
When；It is centrifuged 20-40 minutes with the rotating speed of 8000-12000rmp after mixing.
5. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：Step（b）Middle resin is consolidated with HDI
The mass ratio of agent is 1：0.67-1.5.
6. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：Step（b）Middle resin curing agent
The solvent being used in mixed way with montmorillonite is toluene ethyl acetate mixed solvent, in the toluene ethyl acetate mixed solvent toluene with
The volume ratio of ethyl acetate is 1：4~2：4.
7. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：Step（b）Middle loading small molecule
The rotating speed of the montmorillonite, hydroxy resin and the mixing of HDI curing agent of organic antibacterial agent is 600-2000rmp, and the time is 1-4 hours.
8. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：Step（c）Middle antimicrobial coating exists
Coated 2-4 times on PET film.
9. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：Using knife type coater by antibacterial
Coating is coated on PET packaging films.
10. the preparation method of anti-bacterial packaging film according to claim 1, it is characterised in that：Step（c）The temperature of middle drying
It it is 70-90 DEG C, the time is 8-15 minutes.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423801A (en) * | 2019-01-10 | 2020-07-17 | 沈阳化工研究院有限公司 | Water-based nano heavy-duty coating for chemical sewage tank and preparation thereof |
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