CN110157120A - A kind of preparation method of the antibacterial isolation-type packaging material of high intensity - Google Patents
A kind of preparation method of the antibacterial isolation-type packaging material of high intensity Download PDFInfo
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Abstract
The present invention relates to a kind of preparation methods of the antibacterial isolation-type packaging material of high intensity, belong to packaging material preparation technical field.Sucrose, potato and inorganic salts mixed fermentation will be added after the root of ginkgo and stem grinding in the present invention, the endogenetic fungus in ginkgo is set to have good growing environment to be metabolized, bred, to obtain organic compound abundant in the metabolic secretion of these endogenetic fungus, improve the mechanical property of packaging material, to make the toughness of packaging material, shock resistance be improved, make isolation-type packaging material that there is antibacterial effect；The present invention first mixes kaolinite, hematite, under the corrosion modification of citric acid, part aluminium ion, iron ion dissolution, increase kaolinite and the enhancing of hematite surface roughness and interior porosity, heat insulation is set to be significantly improved, cryogenic freezing is utilized simultaneously, and the increase that hole increases with porosity effectively improves the heat-proof quality of packaging material, has a good application prospect.
Description
Technical field
The present invention relates to a kind of preparation methods of the antibacterial isolation-type packaging material of high intensity, belong to packaging material technology of preparing
Field.
Background technique
High barrier packaging, that is, have the packaging material of high barrier, industrializes or has industrial at present using with being in progress
The barrier material for changing prospect of production mainly has pvdc, evoh, pen, cyano resin, polyamide etc..Pvdcpvdc(gathers inclined two chloroethene
Alkene) the characteristics of be low permeability, barrier property and chemical resistance.
With the increasingly raising of the continual and steady development of China's economic and living standards of the people, requirement of the people to food is got over
Come higher.In order to improve circulation period and the shelf life of food, the effect of food packaging becomes more and more important.Therefore, it is used for food
The material of packaging is in addition to that will have a good mechanical performance, such as tensile strength, except tear-resistant, impact resistant strength etc., it is necessary to have compared with
High barrier property, especially oxygen-barrier property packaging material, which play food, guarantees the quality, is fresh-keeping, protecting flavor and extend the shelf longevity
Life plays a key role.And high-barrier packaging material is wet (such as drying in addition to that must have good resistance oxygen (such as fatty foods), resistance
Food) or flavor barrier (such as aromatise foods) other than, also to have good chemical stability, such as be suitble to food high-temperature sterilization
And the features such as cryopreservation.
Aseptic packaging material is a kind of laminated multi-layer packaging material, is mainly made of paper, plastic casing aluminium foil, is had excellent
It is oxygen barrier every wet function, so its packaging food include that food liquid has very long shelf life.But this multilayer is without bacterium bag
Package material has the limitation of its own, is first, needs directly to do printing receiving plane and supporting layer with cardboard, in this way to cardboard
The surface state and fibre morphology of itself have very high requirement, and common cardboard is extremely difficult to specific print request, and papermaking
A large amount of timber is consumed, chemicals used in papermaking is very big to the harm of environment；Secondly, it uses aluminium foil as gas barrier
Layer and light barriers, and aluminium foil as barrier layer on packaging material, being finished and will be thrown away, there is aluminium foil drop in this way
It solves problem, recycle the problems such as hardly possible, pollution environment.The existing generally existing fungistatic effect of isolation-type packaging material is bad, mechanical property
Deficiency easily leads to that toughness, shock resistance are poor, and the defect that heat-proof quality cannot be met the requirements.
There are various packaging materials on the market at present, the raw material mainly used is polyethylene terephthalate
It is the polycondensation product of terephthalic acid (TPA) and ethylene glycol, belongs to linear polyesters, " terylene " is also, due to excellent physical chemistry
It the advantages that energy and reclaiming, is therefore widely used in and prepares packaging material.
But packaging material of the PET as some specialities, for example, for beverage, beer etc. packaging when, be not able to satisfy but
Packaged beverage, the vial of beer, pop can etc. require special circumferential full barrier, the high efficiency buffer etc. of packaging material,
PET packaging material not only will affect the taste or mouthfeel of filled food and beverage etc. in bottle, and PET packaging material itself has
It is also extremely short to imitate the service life；Packaging material is wanted in addition, PET packaging material barrier property is also unable to reach product to be packaged with heat resistance
It asks.Meanwhile the polyphenyl second largely used in the packaging such as household electrical appliance, precision instrument, electronic computer, electronic component at present
Alkenes foamed damping packing material, is a kind of high-molecular compound, and packaging waste is unable to natural degradation and completely recycling.With
Global trade integration and great attention of the various countries to environmental problem, these are unable to the buffers packet of natural degradation and recycling
Package material will receive increasing limitation, finally be eliminated.
Therefore, invent that a kind of intensity is high, the isolation-type packaging material of good antimicrobial effect and good heat-insulation effect is to packaging material
Preparation technical field has positive effect.
Summary of the invention
The technical problems to be solved by the invention:, mechanical property bad for current isolation-type packaging material fungistatic effect
Deficiency leads to toughness, shock resistance difference and the insufficient defect of heat-proof quality, provides a kind of antibacterial isolation-type packet of high intensity
The preparation method of package material.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of antibacterial isolation-type packaging material of high intensity the preparation method comprises the following steps:
Prefabricated slurries are placed in frozen vacuum dryer, extremely -50~-40 DEG C of reduction temperature, constant temperature 2~3h of standing, after standing
Being evacuated to vacuum degree is 30~50Pa, and constant temperature stands 10~12h, and hybrid solid is made, weighs hybrid solid, borax, dioxy
In SiClx, calcium stearate and calcium chloride investment double screw extruder, temperature is 120~140 DEG C, revolving speed is 100~120r/
Under conditions of min in extruding pelletization investment mold, mold is placed in hot press, is 140~150 DEG C, suppresses pressure in temperature
To suppress 30~40min under conditions of 15~18MPa, discharge up to high-intensitive antibacterial isolation-type packaging material；
Prefabricated slurries the preparation method comprises the following steps:
(1) by mixed grinding in kaolinite and hematite investment planetary ball mill, 50 meshes are crossed after grinding and obtain sieving, it will
The citric acid solution that sieving and mass fraction are 15~18% is put into three-necked flask, and three-necked flask, which is placed in bath temperature, is
In 50~60 DEG C of water-bath, 3~5h is mixed with the revolving speed of 600~650r/min with blender, mixed serum is made；
(2) organic liquor is added into three-necked flask, three-necked flask is placed in sonic oscillation instrument, is 30~35kHz's in frequency
Under the conditions of 60~80min of sonic oscillation, obtain dispersion liquid, by dispersion liquid and Vingon investment reaction kettle in, increase kettle in
Temperature is mixed 40~50min with blender with the revolving speed of 400~500r/min and prefabricated slurries is made to 120~140 DEG C；
Organic liquor the preparation method comprises the following steps:
(1) it will be pulverized and mixed to obtain mixture in the root of ginkgo and stem investment pulverizer, be successively 10~14% with mass fraction
Liquor natrii hypochloritis and deionized water washed mixture 3~5 times, weigh mixture, sucrose, potato block, odium stearate, sulfuric acid
Obtained solidliquid mixture is uniformly mixed in potassium and water investment beaker；
(2) solidliquid mixture is putted into fermenter, the salt acid for adjusting pH value that mass fraction is 5~8% is added dropwise into fermentor,
Fermentor sealing is placed in the greenhouse that temperature is 35~38 DEG C, stands 7~9 days, filtrate is obtained by filtration after standing, will filter
Liquid is placed in 50~60min of irradiation under ultraviolet sterilizing lamp, while being mixed with blender with the revolving speed of 300~350r/min,
Stir postposition in a vacuum drying oven, under conditions of temperature is 35~40 DEG C, vacuum degree is 30~50Pa be concentrated in vacuo 20~
22h obtains organic liquor.
According to parts by weight, hybrid solid is 20~23 parts, borax is 2~4 parts, silica is 1~2 part, stearic acid
Calcium is 1~2 part, calcium chloride is 0.6~0.9 part.
The mass ratio of kaolinite and hematite is 3:1 in the preparation method of prefabricated slurries.
The mass ratio for the citric acid solution that sieving and mass fraction are 15~18% in the preparation method of prefabricated slurries is 1:
10。
The quality for the organic liquor being added in the preparation method of prefabricated slurries into three-necked flask is the 15 of mixed serum quality
~20%, the mass ratio of dispersion liquid and Vingon is 1:5.
The mass ratio of the root and stem of ginkgo is 1:5 in the preparation method of organic liquor.
In the preparation method of organic liquor according to parts by weight, the mixture is 11~13 parts, sucrose is 2~3 parts, soil
Beans block is 7~9 parts, odium stearate is 0.3~0.6 part, potassium sulfate is 1~2 part, water is 20~25 parts.
It is 6.3~6.8 that the pH value that matter hydrochloric acid is adjusted is added dropwise in the preparation method of machine liquid into fermentor.
The method have the benefit that:
(1) root of ginkgo and stem are pulverized and mixed by the present invention first, and glucose, potato, sodium salt and sylvite are added after mixing
It being blended and solidliquid mixture is made, solidliquid mixture is placed in fermentation cylinder for fermentation, organic liquor is made in ultraviolet disinfection after fermentation, with
Afterwards by kaolinite and bloodstone mixed grinding, grinding is placed on citric acid solution high temperature and impregnates obtained mixed serum, then will
Organic liquor is mixed with mixed serum, adds Vingon high-temperature fusion and prefabricated slurries are made, by prefabricated slurry freeze, vacuum
Hybrid solid, is finally mixed extruding pelletization in investment double screw extruder, then throw by dry obtained hybrid solid with other auxiliary materials
Enter hot press high temperature to suppress up to high-intensitive antibacterial isolation-type packaging material, the present invention adds after grinding the root of ginkgo and stem
Enter sucrose, potato and inorganic salts mixed fermentation, the endogenetic fungus in ginkgo is made to have good growing environment be metabolized, be numerous
It grows, so that organic compound abundant is obtained in the metabolic secretion of these endogenetic fungus, wherein having Bilobalide, biology
Alkali, ginkegetin, organic acid, polyene alcohols and other organic principles, these organic principles have abundant using itself
Functional group, to molecule each in isolation-type packaging material formed hydrogen bond, intermolecular force, to the chelation of metal ion with
And other Chemical bondings, the mechanical property of packaging material is improved, so that the toughness of packaging material, shock resistance be made to be mentioned
Height, while metabolite itself has the function of good restraining and sterilizing bacteria, and isolation-type packaging material is made to have antibacterial effect；
(2) present invention first mixes kaolinite, hematite, under the corrosion modification of citric acid, part aluminium ion, iron ion
Dissolution increases kaolinite and the enhancing of hematite surface roughness and interior porosity, thus more fully viscous
The organic matter that polymer and gingko endogenous fungus metabolic secretion generate is tied, the organic matter that gingko endogenous fungus secretion generates is filled high
Hole in ridge stone and hematite, makes heat insulation be significantly improved, while utilizing cryogenic freezing, makes in mixed serum
Hydrone freezing and crystallizing destroys hydrogen bond, and the spacing between hydrone and organic molecule increases, so that expansion becomes Micro porosity
Greatly, the increase that hole increases with porosity effectively improves the heat-proof quality of packaging material, has a good application prospect.
Specific embodiment
The root of ginkgo and stem 1:5 in mass ratio are put into pulverizer and are pulverized and mixed to obtain mixture, successively uses quality
Score is 10~14% liquor natrii hypochloritis and deionized water washed mixture 3~5 times, according to parts by weight, weighs 11~13
Part mixture, 2~3 portions of sucrose, 7~9 parts of potato blocks, 0.3~0.6 part of odium stearate, 1~2 part of potassium sulfate and 20~25 parts of water
It puts into beaker and is uniformly mixed obtained solidliquid mixture；Above-mentioned solidliquid mixture is putted into fermenter, is added dropwise into fermentor
The salt acid for adjusting pH value that mass fraction is 5~8% is placed in the greenhouse that temperature is 35~38 DEG C to 6.3~6.8, by fermentor sealing
In, 7~9 days are stood, filtrate is obtained by filtration after standing, filtrate is placed in 50~60min of irradiation under ultraviolet sterilizing lamp, together
When be mixed with blender with the revolving speed of 300~350r/min, stirring postposition is 35~40 in temperature in a vacuum drying oven
DEG C, vacuum degree be 30~50Pa under conditions of vacuum concentration 20~22h obtain organic liquor, it is spare；By kaolinite and hematite
3:1 in mass ratio puts into mixed grinding in planetary ball mill, and 50 meshes are crossed after grinding and obtain sieving, by sieving and quality point
Number is put into three-necked flask for 15~18% citric acid solution 1:10 in mass ratio, and it is 50 that three-necked flask, which is placed in bath temperature,
In~60 DEG C of water-bath, 3~5h is mixed with the revolving speed of 600~650r/min with blender, mixed serum is made；Upwards
The spare organic liquor that mixed serum quality 15~20% is added in three-necked flask is stated, three-necked flask is placed in sonic oscillation instrument,
60~80min of sonic oscillation under conditions of frequency is 30~35kHz, obtains dispersion liquid, dispersion liquid and Vingon is pressed
Mass ratio 1:5 is put into reaction kettle, increases temperature in the kettle to 120~140 DEG C, with blender with the revolving speed of 400~500r/min
40~50min is mixed, prefabricated slurries are made；Above-mentioned prefabricated slurries are placed in frozen vacuum dryer, reduce temperature to-
50~-40 DEG C, constant temperature stands 2~3h, and it is 30~50Pa that vacuum degree is evacuated to after standing, and constant temperature stands 10~12h, is made mixed
It closes solid and weighs 20~23 parts of hybrid solids, 2~4 parts of boraxs, 1~2 part of silica, 1~2 part of tristearin according to parts by weight
In sour calcium and 0.6~0.9 part of calcium chloride investment double screw extruder, temperature is 120~140 DEG C, revolving speed is 100~120r/
Under conditions of min in extruding pelletization investment mold, mold is placed in hot press, is 140~150 DEG C, suppresses pressure in temperature
To suppress 30~40min under conditions of 15~18MPa, discharge up to high-intensitive antibacterial isolation-type packaging material.
Example 1
The preparation of organic liquor:
The root of ginkgo and stem 1:5 in mass ratio are put into pulverizer and are pulverized and mixed to obtain mixture, successively uses mass fraction
11 parts of mixtures, 2 parts of sugarcanes are weighed according to parts by weight for 10% liquor natrii hypochloritis and deionized water washed mixture 3 times
Obtained solidliquid mixture is uniformly mixed in sugar, 7 parts of potato blocks, 0.3 part of odium stearate, 1 part of potassium sulfate and 20 parts of water investment beakers；
Above-mentioned solidliquid mixture is putted into fermenter, the salt acid for adjusting pH value that dropwise addition mass fraction is 5% into fermentor is extremely
6.3, fermentor sealing is placed in the greenhouse that temperature is 35 DEG C, stands 7 days, filtrate is obtained by filtration after standing, by filtrate
It is placed under ultraviolet sterilizing lamp and irradiates 50min, while being mixed with blender with the revolving speed of 300r/min, stirring is placed on true
In empty drying box, 20h is concentrated in vacuo under conditions of temperature is 35 DEG C, vacuum degree is 30Pa and obtains organic liquor, it is spare；
The preparation of prefabricated slurries:
By mixed grinding in kaolinite and hematite 3:1 in mass ratio investment planetary ball mill, 50 meshes are crossed after grinding and are obtained
The citric acid solution 1:10 in mass ratio that sieving and mass fraction are 15% is put into three-necked flask, three mouthfuls is burnt by sieving
Bottle is placed in the water-bath that bath temperature is 50 DEG C, and 3h is mixed with the revolving speed of 600r/min with blender, mixing slurry is made
Liquid；
The spare organic liquor of mixed serum quality 15% is added into above-mentioned three-necked flask, three-necked flask is placed in sonic oscillation
In instrument, sonic oscillation 60min under conditions of frequency is 30kHz obtains dispersion liquid, and dispersion liquid and Vingon are pressed quality
Than in 1:5 investment reaction kettle, increasing temperature in the kettle to 120 DEG C, 40min system is mixed with the revolving speed of 400r/min with blender
Obtain prefabricated slurries；
The preparation of high-intensitive antibacterial isolation-type packaging material:
Above-mentioned prefabricated slurries are placed in frozen vacuum dryer, reduce temperature to -50 DEG C, constant temperature stands 2h, takes out after standing true
Sky to vacuum degree is 30Pa, and constant temperature stands 10h, and hybrid solid is made and weighs 20 parts of hybrid solids, 2 parts of boron according to parts by weight
It is 120 DEG C, revolving speed in temperature in sand, 1 part of silica, 1 part of calcium stearate and 0.6 part of calcium chloride investment double screw extruder
It is put into mold for extruding pelletization under conditions of 100r/min, mold is placed in hot press, be 140 DEG C, suppress pressure in temperature
By force to suppress 30min under conditions of 15MPa, discharge up to high-intensitive antibacterial isolation-type packaging material.
Example 2
The preparation of organic liquor:
The root of ginkgo and stem 1:5 in mass ratio are put into pulverizer and are pulverized and mixed to obtain mixture, successively uses mass fraction
12 parts of mixtures, 2 parts of sugarcanes are weighed according to parts by weight for 12% liquor natrii hypochloritis and deionized water washed mixture 4 times
Obtained solidliquid mixture is uniformly mixed in sugar, 8 parts of potato blocks, 0.5 part of odium stearate, 1 part of potassium sulfate and 22 parts of water investment beakers；
Above-mentioned solidliquid mixture is putted into fermenter, the salt acid for adjusting pH value that dropwise addition mass fraction is 7% into fermentor is extremely
6.5, fermentor sealing is placed in the greenhouse that temperature is 37 DEG C, stands 8 days, filtrate is obtained by filtration after standing, by filtrate
It is placed under ultraviolet sterilizing lamp and irradiates 55min, while being mixed with blender with the revolving speed of 320r/min, stirring is placed on true
In empty drying box, 21h is concentrated in vacuo under conditions of temperature is 37 DEG C, vacuum degree is 40Pa and obtains organic liquor, it is spare；
The preparation of prefabricated slurries:
By mixed grinding in kaolinite and hematite 3:1 in mass ratio investment planetary ball mill, 50 meshes are crossed after grinding and are obtained
The citric acid solution 1:10 in mass ratio that sieving and mass fraction are 17% is put into three-necked flask, three mouthfuls is burnt by sieving
Bottle is placed in the water-bath that bath temperature is 55 DEG C, and 4h is mixed with the revolving speed of 620r/min with blender, mixing slurry is made
Liquid；
The spare organic liquor of mixed serum quality 17% is added into above-mentioned three-necked flask, three-necked flask is placed in sonic oscillation
In instrument, sonic oscillation 70min under conditions of frequency is 32kHz obtains dispersion liquid, and dispersion liquid and Vingon are pressed quality
Than in 1:5 investment reaction kettle, increasing temperature in the kettle to 130 DEG C, 45min system is mixed with the revolving speed of 450r/min with blender
Obtain prefabricated slurries；
The preparation of high-intensitive antibacterial isolation-type packaging material:
Above-mentioned prefabricated slurries are placed in frozen vacuum dryer, reduce temperature to -45 DEG C, constant temperature stands 2.5h, takes out after standing
Vacuum to vacuum degree is 40Pa, and constant temperature stands 11h, and hybrid solid is made and weighs 22 parts of hybrid solids, 3 parts according to parts by weight
It is 130 DEG C, turns in temperature in borax, 1 part of silica, 1 part of calcium stearate and 0.8 part of calcium chloride investment double screw extruder
Extruding pelletization is put into mold under conditions of speed is 110r/min, and mold is placed in hot press, is 145 DEG C, is suppressed in temperature
Pressure suppresses 35min under conditions of being 17MPa, discharges up to high-intensitive antibacterial isolation-type packaging material.
Example 3
The preparation of organic liquor:
The root of ginkgo and stem 1:5 in mass ratio are put into pulverizer and are pulverized and mixed to obtain mixture, successively uses mass fraction
13 parts of mixtures, 3 parts of sugarcanes are weighed according to parts by weight for 14% liquor natrii hypochloritis and deionized water washed mixture 5 times
Obtained solidliquid mixture is uniformly mixed in sugar, 9 parts of potato blocks, 0.6 part of odium stearate, 2 parts of potassium sulfates and 25 parts of water investment beakers；
Above-mentioned solidliquid mixture is putted into fermenter, the salt acid for adjusting pH value that dropwise addition mass fraction is 8% into fermentor is extremely
6.8, fermentor sealing is placed in the greenhouse that temperature is 38 DEG C, stands 9 days, filtrate is obtained by filtration after standing, by filtrate
It is placed under ultraviolet sterilizing lamp and irradiates 60min, while being mixed with blender with the revolving speed of 350r/min, stirring is placed on true
In empty drying box, 22h is concentrated in vacuo under conditions of temperature is 40 DEG C, vacuum degree is 50Pa and obtains organic liquor, it is spare；
The preparation of prefabricated slurries:
By mixed grinding in kaolinite and hematite 3:1 in mass ratio investment planetary ball mill, 50 meshes are crossed after grinding and are obtained
The citric acid solution 1:10 in mass ratio that sieving and mass fraction are 18% is put into three-necked flask, three mouthfuls is burnt by sieving
Bottle is placed in the water-bath that bath temperature is 60 DEG C, and 5h is mixed with the revolving speed of 650r/min with blender, mixing slurry is made
Liquid；
The spare organic liquor of mixed serum quality 20% is added into above-mentioned three-necked flask, three-necked flask is placed in sonic oscillation
In instrument, sonic oscillation 80min under conditions of frequency is 35kHz obtains dispersion liquid, and dispersion liquid and Vingon are pressed quality
Than in 1:5 investment reaction kettle, increasing temperature in the kettle to 140 DEG C, 50min system is mixed with the revolving speed of 500r/min with blender
Obtain prefabricated slurries；
The preparation of high-intensitive antibacterial isolation-type packaging material:
Above-mentioned prefabricated slurries are placed in frozen vacuum dryer, reduce temperature to -40 DEG C, constant temperature stands 3h, takes out after standing true
Sky to vacuum degree is 50Pa, and constant temperature stands 12h, and hybrid solid is made and weighs 23 parts of hybrid solids, 4 parts of boron according to parts by weight
It is 140 DEG C, revolving speed in temperature in sand, 2 parts of silica, 2 parts of calcium stearates and 0.9 part of calcium chloride investment double screw extruder
It is put into mold for extruding pelletization under conditions of 120r/min, mold is placed in hot press, be 150 DEG C, suppress pressure in temperature
By force to suppress 40min under conditions of 18MPa, discharge up to high-intensitive antibacterial isolation-type packaging material.
Comparative example 1: it is essentially identical with the preparation method of example 2, it has only the difference is that lacking organic liquor.
Comparative example 2: it is essentially identical with the preparation method of example 2, it has only the difference is that lacking prefabricated slurries.
Comparative example 3: the antibacterial isolation-type packaging material of high intensity of Sichuan company production.
Mechanics Performance Testing is by GB/T1040.3-2006 " the measurement third portion of plastic tensile performance: film and thin slice
Experimental condition " it is detected.
Heat seal strength test is detected using heat seal strength tester.
Impact resistance test is detected using ball falling impact experiment.
Thermal insulation test: in the environment of the packaging material in example 1~3 and comparative example is placed in 110 DEG C, after 40min,
Measure whether temperature in bag increases.
Bacteriostasis rate test is detected by GB/T4768-2008 standard.
1 isolation-type packaging material performance measurement result of table
It is good according to the antibacterial isolation-type packaging material mechanical property of above-mentioned detection data high intensity produced by the present invention, toughness,
Good impact resistance, heat seal strength is high, and oxygen and steam penetrating capacity are low, good barrier property, and thermal insulation is good, and bacteriostasis rate is high, has wide
Wealthy application prospect.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of preparation method of the antibacterial isolation-type packaging material of high intensity, it is characterised in that specific preparation step are as follows:
Prefabricated slurries are placed in frozen vacuum dryer, extremely -50~-40 DEG C of reduction temperature, constant temperature 2~3h of standing, after standing
Being evacuated to vacuum degree is 30~50Pa, and constant temperature stands 10~12h, and hybrid solid is made, weighs hybrid solid, borax, dioxy
In SiClx, calcium stearate and calcium chloride investment double screw extruder, temperature is 120~140 DEG C, revolving speed is 100~120r/
Under conditions of min in extruding pelletization investment mold, mold is placed in hot press, is 140~150 DEG C, suppresses pressure in temperature
To suppress 30~40min under conditions of 15~18MPa, discharge up to high-intensitive antibacterial isolation-type packaging material；
The specific preparation step of the prefabricated slurries are as follows:
(1) by mixed grinding in kaolinite and hematite investment planetary ball mill, 50 meshes are crossed after grinding and obtain sieving, it will
The citric acid solution that sieving and mass fraction are 15~18% is put into three-necked flask, and three-necked flask, which is placed in bath temperature, is
In 50~60 DEG C of water-bath, 3~5h is mixed with the revolving speed of 600~650r/min with blender, mixed serum is made；
(2) organic liquor is added into three-necked flask, three-necked flask is placed in sonic oscillation instrument, is 30~35kHz's in frequency
Under the conditions of 60~80min of sonic oscillation, obtain dispersion liquid, by dispersion liquid and Vingon investment reaction kettle in, increase kettle in
Temperature is mixed 40~50min with blender with the revolving speed of 400~500r/min and prefabricated slurries is made to 120~140 DEG C；
The specific preparation step of the organic liquor are as follows:
(1) it will be pulverized and mixed to obtain mixture in the root of ginkgo and stem investment pulverizer, be successively 10~14% with mass fraction
Liquor natrii hypochloritis and deionized water washed mixture 3~5 times, weigh mixture, sucrose, potato block, odium stearate, sulfuric acid
Obtained solidliquid mixture is uniformly mixed in potassium and water investment beaker；
(2) solidliquid mixture is putted into fermenter, the salt acid for adjusting pH value that mass fraction is 5~8% is added dropwise into fermentor,
Fermentor sealing is placed in the greenhouse that temperature is 35~38 DEG C, stands 7~9 days, filtrate is obtained by filtration after standing, will filter
Liquid is placed in 50~60min of irradiation under ultraviolet sterilizing lamp, while being mixed with blender with the revolving speed of 300~350r/min,
Stir postposition in a vacuum drying oven, under conditions of temperature is 35~40 DEG C, vacuum degree is 30~50Pa be concentrated in vacuo 20~
22h obtains organic liquor.
2. a kind of preparation method of the antibacterial isolation-type packaging material of high intensity according to claim 1, it is characterised in that: excellent
According to parts by weight, the hybrid solid is 20~23 parts, borax is 2~4 parts, silica is 1~2 part, stearic for choosing
Sour calcium is 1~2 part, calcium chloride is 0.6~0.9 part.
3. a kind of preparation method of the antibacterial isolation-type packaging material of high intensity according to claim 1, it is characterised in that: pre-
The specific preparation step of slurrying liquid is 3:1 for the mass ratio of kaolinite described in (1) and hematite.
4. a kind of preparation method of the antibacterial isolation-type packaging material of high intensity according to claim 1, it is characterised in that: pre-
The quality for the citric acid solution that the specific preparation step of slurrying liquid is sieving described in (1) and mass fraction is 15~18%
Than for 1:10.
5. a kind of preparation method of the antibacterial isolation-type packaging material of high intensity according to claim 1, it is characterised in that: pre-
The specific preparation step of slurrying liquid is that the quality for the organic liquor being added described in (2) into three-necked flask is mixed serum quality
15~20%, the mass ratio of dispersion liquid and Vingon is 1:5.
6. a kind of preparation method of the antibacterial isolation-type packaging material of high intensity according to claim 1, it is characterised in that: have
The root of ginkgo described in the specific preparation step (1) of machine liquid and the mass ratio of stem are 1:5.
7. a kind of preparation method of the antibacterial isolation-type packaging material of high intensity according to claim 1, it is characterised in that: have
In the specific preparation step (1) of machine liquid preferably according to parts by weight, the mixture is 11~13 parts, sucrose is 2~3
Part, potato block are 7~9 parts, odium stearate is 0.3~0.6 part, potassium sulfate is 1~2 part, water is 20~25 parts.
8. a kind of preparation method of the antibacterial isolation-type packaging material of high intensity according to claim 1, it is characterised in that: machine
It is 6.3~6.8 that the pH value that matter hydrochloric acid is adjusted is added dropwise described in the specific preparation step (2) of liquid into fermentor.
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| US5115029A (en) * | 1988-07-15 | 1992-05-19 | The Dow Chemical Company | Extrudable polymeric composition |
| CN1390242A (en) * | 1999-11-12 | 2003-01-08 | 吴羽化学工业株式会社 | Film selectively permeable to carbon clioxidc and food packaging film comprising the same |
| WO2016174978A1 (en) * | 2015-04-30 | 2016-11-03 | 株式会社クレハ | Vinylidene-chloride-based resin film |
| CN106977864A (en) * | 2017-03-30 | 2017-07-25 | 合肥金同维低温科技有限公司 | A kind of waterproof packing material and preparation method based on boron mud |
| CN109208374A (en) * | 2018-08-31 | 2019-01-15 | 王成 | A kind of preparation method of the antibacterial ox-hide paper packing material of waterproof |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5115029A (en) * | 1988-07-15 | 1992-05-19 | The Dow Chemical Company | Extrudable polymeric composition |
| CN1390242A (en) * | 1999-11-12 | 2003-01-08 | 吴羽化学工业株式会社 | Film selectively permeable to carbon clioxidc and food packaging film comprising the same |
| WO2016174978A1 (en) * | 2015-04-30 | 2016-11-03 | 株式会社クレハ | Vinylidene-chloride-based resin film |
| CN106977864A (en) * | 2017-03-30 | 2017-07-25 | 合肥金同维低温科技有限公司 | A kind of waterproof packing material and preparation method based on boron mud |
| CN109208374A (en) * | 2018-08-31 | 2019-01-15 | 王成 | A kind of preparation method of the antibacterial ox-hide paper packing material of waterproof |
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Application publication date: 20190823 |