CN105754149A - High-toughness plastic bag for food packaging and production process of plastic bag - Google Patents
High-toughness plastic bag for food packaging and production process of plastic bag Download PDFInfo
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- CN105754149A CN105754149A CN201610181397.8A CN201610181397A CN105754149A CN 105754149 A CN105754149 A CN 105754149A CN 201610181397 A CN201610181397 A CN 201610181397A CN 105754149 A CN105754149 A CN 105754149A
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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
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/04—Alginic acid; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention relates to a high-toughness plastic bag for food packaging and a production process of the plastic bag. The high-toughness plastic bag is prepared from components in parts by weight as follows: 100 parts of stearic acid, 16-21 parts of diethyl phthalate, 4-9 parts of barium stearate, 15-23 parts of cholla stems, 24-30 parts of algae, 7-8 parts of a preservative, 1-3 parts of a crosslinking agent, 2-4 parts of a toughening agent, 3-5 parts of starch, 2-6 parts of citric acid and 10-16 parts of glycerol. The produced plastic bag has certain bearing capacity, the toughness of a traditional plastic bag is effectively improved, and the situation that the plastic bag is broken due to too much load is avoided. Extraction of cholla gum and seaweed gel is effectively reinforced, and the toughness of the plastic bag is effectively improved; due to addition of plant ingredients, the produced plastic bag has the functions of toughness improvement, bacterium resistance and corrosion resistance, the service life of the plastic bag can be effectively prolonged, raw materials of the plastic bag are extracted from plants, accordingly, the produced plastic bag is easy to degrade and secondary pollution to the environment cannot be caused.
Description
Technical field
The present invention relates to plastic products manufacturing technology field, a kind of high toughness plastic bag for packaging for foodstuff and
Its production technology.
Background technology
In we live, we are with polybag all the time, and people need, with plastic bag packaging food or food, to mould
Pocket is the most indispensable in daily life, when people at supermarket shopping and buy vegetables in food market, needs by moulding
Food is packed by pocket, and polybag has certain bearing capacity, but the weight that polybag contains thing is also limited, has
Polybag bearing capacity inadequate, when the thing of the carrying in polybag is too much, polybag can be because the weight of thing be excessive
Cannot bear the weight in polybag, therefore, polybag can rupture, and the life of people can be produced certain impact, have
Packaging for foodstuff outside be provided with tip, polybag can be poked in tip, polybag can be produced certain impact, can affect people
Life, in existing polybag manufacturing process, in order to improve the quality of polybag, can increase chemical toughening in the polybag produced
Agent increases the toughness of polybag, but too much chemical toughening agent is difficult to degrade, and environment can be produced certain impact, and
Chemical composition is added also certain side effect, human body can be produced certain impact, have a strong impact on the life of people.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that a kind of high toughness plastic bag for packaging for foodstuff and
Its production technology, to solve problems of the prior art.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of high toughness plastic bag for packaging for foodstuff, it is characterised in that be made up of by weight following component: stearic acid
100 parts, dicarboxylic acid ethyl ester 16-21 part, barium stearate 4-9 part, cactus 15-23 part, marine alga 24-30 part, preservative 7-8 part,
Crosslinking agent 1-3 part, toughener 2-4 part, starch 3-5 part, citric acid 2-6 part, glycerine 10-12 part.
As a modification of the present invention, described preservative is the mixture of fennel, the leaf of bamboo and rosemary.
As a modification of the present invention, described fennel, the leaf of bamboo, the weight ratio of rosemary are 2:7:1.
As a modification of the present invention, the production technology of described preservative is as follows: 1) fennel, the leaf of bamboo, rosemary are entered
Row cuts after cleaning, and is, after 2:7:1 mixes, to be put into by mixture by fennel, the leaf of bamboo, the weight ratio of rosemary
Microwave drier carries out sterilizing and drying, and makes mixture be thermally dried 3-5 time in the microwave drier of 700W,
After mixture after drying is pulverized by pulverizer, in crushed material, add water, and carry out steam distilling 3-5
Filtering after hour, the mixture after pulverizing is put in sealing device and is sealed, and is placed at 5-6 DEG C by mixture
After 30-50 minute, carry out filtering and putting in drying device by mixture being dried；
2) mixture of step 1) is placed in ethanol solution carries out soaking after 38-50 minute, mixture is put into water-bath
In Guo, and make mixture heating and refluxing extraction 1.5-2 hour at 73-85 DEG C, go forward side by side after carrying out being cooled to room temperature by mixture
Row filters, and collects filtrate, adds ethanol and filter residue is carried out secondary back 28-36 minute in filter residue, and liquid to be mixed is cooled to
After room temperature, mixed liquor is filtered, and the filtrate after filtering be placed on 2-3 DEG C at carry out sealing and place after 15-20 minute
Filter, collect filtrate；
3) take off heavy liquid after adding petroleum ether in filtrate and mixture being extracted, then addition petroleum ether enters in mixture
Row reextraction, and seal extract to preserve and carry out to place after 10-20 minute and filter, the filtrate after filtering adds first
Alcohol, and carry out concentrate drying in mixture is placed on Rotary Evaporators；
4) dried mixture centrifuge is rotated, and make mixture be centrifuged 10-15 minute at 20-23 DEG C, and
The rotary speed controlling centrifuge is 1350-1500r/min, takes supernatant, and put into by mixture after being filtered by solution
Filter filters, and the mixture after filtering carries out cooling and stands after 20-30 minute mixture is carried out two
Secondary filtration, i.e. can get preservative.
As a modification of the present invention, the production technology of described polybag is as follows: 1) takes marine alga 24-30 part and puts in distilled water
Being rinsed, the marine alga after cleaning carries out cutting into bulk, is then placed in the hot water that temperature is 85-96 DEG C the boiling hot 1-2 of leaching and divides
Zhong Hou, drains water, is put into sodium carbonate liquor by marine alga, and to make solid-to-liquid ratio be 1:8, and is soaked at 45 DEG C by marine alga
Carry 1 hour, after the mixture after extracting filters, after in mixture, addition hydrochloric acid stands 10-14 minute, by mixture
Being carried out with distilled water, and the marine alga after cleaning is put in dehydration device and is dehydrated, and the water content controlling marine alga is
20-30%；
2) taking cactus 15-23 part to put in distilled water and be rinsed, the cactus after cleaning carries out cutting into bulk, and puts
Enter after ethanol solution being carried out soak 10-13 minute, water is drained, cactus is put into hydrochloric acid solution, and make celestial being
After people's palm extracts 1.5 hours at 50-60 DEG C, in mixture, add activated carbon, calcium chloride and be stirred 4-6 hour,
Being put in filter by mixture and filter, cactus, activated carbon, the weight ratio of calcium chloride are 5:2:1；
3) by the marine alga processed through step 1) and through step 2) cactus that processed mixes, put by mixture
Enter in beater and pull an oar, and during making beating, in mixture, add distilled water, ethanol, and make marine alga: distilled water:
The weight ratio of ethanol is 2:5:1, after mixture being stirred making beating 6-8 minute, uses ultrasonic wave to extract in mixture, makes
After mixture stirs extraction 20-23 minute under 110W microwave reactor and ul-trasonic irradiation, in mixture, add pectase
1-3 part, citric acid 2-6 part after being stirred 1-2 minute, be heated to reflux carrying in mixture is placed on the water-bath of 65-70 DEG C
After taking 4 hours and filter, filtered fluid is put in rotary evaporator and is made mixture rotary evaporation 3 under the conditions of 72 DEG C little
Shi Hou, then mixture is put into filter filter；
4), after starch 3-5 part being added in filtered fluid and makes mixed liquor be stirred 5-8 minute at 86 DEG C, add in solution
Glycerine 10-12 part is also stirred 20-30 minute, and the reaction temperature controlling solution is 15-24 DEG C, by mixed solution aseptic
After standing 20-30 minute under environment, solution is filtered, in solution, add stearic acid 100 parts, dicarboxylic acid ethyl ester 16-21
Part, barium stearate 4-9 part, and make mixture be stirred 32-39 minute at 68-72 DEG C, mixture is cooled to 25-28 DEG C
After, mixture is put into and shear is carried out pulverize cutting, and the plastics of well cutting are carried out by the sieve of 10-100 mesh
Sieve；
5) plastics carrying out screening through step 4) are put in reactor, and make reactant melt at 180-195 DEG C
Afterwards, and make reactant become molten condition, and in mixture, put into preservative 7-8 part, crosslinking agent 1-3 part, toughener 2-4 part
And be stirred；
6) mixture that step 5) is produced is put into inflation film manufacturing machine carries out blown film and makes plastic sheeting, and by good the moulding of blown film
Material film, cuts through cutting machine, and the plastic sheeting of well cutting is carried out welding.
As a modification of the present invention, described toughener is any one in polybutadiene rubber, POE and polyisobutene
Plant or the mixture of combination of the above.
Owing to have employed above technology, the present invention compared with the prior art, has the advantage that as follows:
Invention provides a kind of high toughness plastic bag for packaging for foodstuff and production technology thereof, the present invention produces
Polybag, the polybag produced has certain bearing capacity, is effectively increased the toughness of conventional plastic bag, prevent polybag because
Bearing capacity is too high and ruptures, and the life of people can be produced certain impact；By cactus, marine alga are entered in the present invention
Row cleans, extracts, pulls an oar, ultrasonic wave extraction, heating and refluxing extraction, rotary evaporation, effectively strengthen cactus and marine alga
The extraction of middle colloidality material, i.e. can obtain the mixture of cactus and the marine alga with high tenacity, the mixture ratio of generation
The film forming of tradition cactus or seaweed mix is high by 50%, adhesivity is high by 60%, can be formed and have highly-water-soluble, high water holding
The mixture of property, the mixture of generation preferably mixes with stearic acid, dicarboxylic acid ethyl ester, barium stearate, can generate height
The polybag of toughness, the elongation at break of the polybag processed can reach more than 360%, hot strength >=35MPa, generates
Mixture there is antibiotic property, can kill 100% bacillus subtilis, Escherichia coli, staphylococcus aureus, and energy
Enough kill 90% head mold, aspergillus, mould, Mucor, saccharomyces cerevisiae, can effectively prevent the residue of plastics inner owing to placing
Time produces certain bacterium too for a long time, can be the most antibacterial up to 20-25, can effectively make every 100cm2Bacterial population few
In 200, be effectively improved the antibiotic property of polybag itself, and this antiseptic be nontoxic, can packaging direct to food,
Harmless to human body itself；After fennel, the leaf of bamboo and rosemary are mixed, and through over cleaning, microwave drying, be heated to reflux,
Reextraction, concentrate drying, filtration, the anti-corrosive antibacterial composition can being effectively improved in fennel, the leaf of bamboo and rosemary, Ke Yiyou
Effect prevents the residue within polybag from rotting in bacterium, and anticorrosion time 19-23 longer than existing polybag；This
Invention is by the interpolation to plant component, and the polybag produced has effect of increasing tougheness, antibiotic property and anti-corrosive properties, permissible
It is effectively increased the service life of polybag, the polybag produced can be made easily to degrade, and the present invention is to be entered by plant
Row extracts, and after adding calcium chloride and ethanol, can form tool in the present invention in the mixture of cactus and marine alga
Having the mixture of high degradability, after reacting with stearic acid, dicarboxylic acid ethyl ester, barium stearate, the polybag produced is easy
Degraded, will not produce secondary pollution to environment.
Detailed description of the invention
Below in conjunction with detailed description of the invention, it is further elucidated with the present invention.
Embodiment 1:
A kind of high toughness plastic bag for packaging for foodstuff, is made up of by weight following component: stearic acid 100 parts, dioctyl phthalate
Ethyl ester 16 parts, barium stearate 9 parts, 15 parts of cactus, marine alga 30 parts, preservative 7 parts, crosslinking agent 3 parts, toughener 2 parts, starch 5
Part, citric acid 2 parts, glycerine 12 parts.
Described preservative is the mixture of fennel, the leaf of bamboo and rosemary.
Described fennel, the leaf of bamboo, the weight ratio of rosemary are 2:7:1.
Described toughener is the mixture of polybutadiene rubber, POE and polyisobutene.
The production technology of described preservative is as follows: 1) be carried out cutting afterwards by fennel, the leaf of bamboo, rosemary, and
It is, after 2:7:1 mixes, mixture to be put in microwave drier and kills by fennel, the leaf of bamboo, the weight ratio of rosemary
Bacterium is dried, and makes mixture be thermally dried in the microwave drier of 700W 3 times, and the mixture after drying passes through powder
After broken machine is pulverized, in crushed material, add water, and filter after steam being distilled 5 hours, mixed after pulverizing
Compound is put in sealing device and is sealed, and after carrying out mixture at 5 DEG C placing 50 minutes, is filtered by mixture
And put in drying device and be dried；
2), after the mixture of step 1) is placed in ethanol solution carrying out soaking 38 minutes, mixture is put into water-bath
In, and make mixture heating and refluxing extraction 1.5 hours at 85 DEG C, after carrying out being cooled to room temperature by mixture and filter,
Collect filtrate, in filter residue, add ethanol and filter residue is carried out secondary back 36 minutes, after liquid to be mixed is cooled to room temperature, will be mixed
Close liquid to filter, and the filtrate after filtering is placed at 2 DEG C to carry out sealing placing after 20 minutes and filters, and collects filter
Liquid；
3) take off heavy liquid after adding petroleum ether in filtrate and mixture being extracted, then addition petroleum ether enters in mixture
Row reextraction, and extract is sealed preserve and filter after carrying out placing 10 minutes, the filtrate after filtering adds methyl alcohol,
And carry out concentrate drying in mixture is placed on Rotary Evaporators；
4) dried mixture centrifuge is rotated, and makes mixture at 23 DEG C centrifugal 10 minutes, and control from
The rotary speed of scheming is 1500r/min, takes supernatant, and be placed in filter by mixture after being filtered by solution
Filter, and the mixture after filtering carries out cooling and stands after 20 minutes mixture is carried out secondary filter, the most available
Preservative.
The production technology of described polybag is as follows: 1) takes marine alga 30 parts and puts in distilled water and be rinsed, the marine alga after cleaning
Carry out cutting into bulk, after being then placed in the hot water that temperature is 96 DEG C leaching boiling hot 1 minute, water is drained, marine alga is put into
To sodium carbonate liquor, and to make solid-to-liquid ratio be 1:8, and is extracted 1 hour at 45 DEG C by marine alga, and the mixture after extracting is carried out
After filtration, in mixture, add hydrochloric acid stand after 14 minutes, mixture distilled water is carried out, and the sea after cleaning
Algae is put in dehydration device and is dehydrated, and the water content controlling marine alga is 30%；
2) taking 15 parts of cactus to put in distilled water and be rinsed, the cactus after cleaning carries out cutting into bulk, and puts into
After ethanol solution being carried out soak 13 minutes, water is drained, cactus is put into hydrochloric acid solution, and make cactus exist
After extracting 1.5 hours at 50 DEG C, in mixture, add activated carbon, calcium chloride and be stirred 4 hours, mixture is put into
Filtering in filter, cactus, activated carbon, the weight ratio of calcium chloride are 5:2:1；
3) by the marine alga processed through step 1) and through step 2) cactus that processed mixes, put by mixture
Enter in beater and pull an oar, and during making beating, in mixture, add distilled water, ethanol, and make marine alga: distilled water:
The weight ratio of ethanol is 2:5:1, after being stirred mixture pulling an oar 6 minutes, uses ultrasonic wave to extract in mixture, makes to mix
After compound stirs extraction 20 minutes under 110W microwave reactor and ul-trasonic irradiation, in mixture, add pectase 1 part, lemon
Lemon acid 2 parts after being stirred 2 minutes, in mixture is placed on the water-bath of 65 DEG C, heating and refluxing extraction after 4 hours and is carried out
Filter, filtered fluid is put in rotary evaporator and made mixture rotary evaporation after 3 hours under the conditions of 72 DEG C, then by mixture
Put into filter to filter；
4), after being added in filtered fluid and make mixed liquor be stirred 5 minutes at 86 DEG C by starch 5 parts, in solution, glycerine is added
12 parts and be stirred 20 minutes, and the reaction temperature controlling solution is 24 DEG C, and mixed solution stands 20 in an aseptic environment
After minute, solution is filtered, in solution, add stearic acid 100 parts, dicarboxylic acid ethyl ester 16 parts, barium stearate 9 parts, and make
Mixture is stirred 39 minutes at 68 DEG C, after mixture is cooled to 25 DEG C, is put into by mixture in shear and carries out
Pulverize cutting, and the plastics of well cutting are sieved by the sieve of 100 mesh；
5) plastics carrying out screening through step 4) are put in reactor, and after making reactant melt at 180 DEG C,
And make reactant become molten condition, and in mixture, put into preservative 7 parts, crosslinking agent 3 parts, toughener 2 parts and be stirred；
6) mixture that step 5) is produced is put into inflation film manufacturing machine carries out blown film and makes plastic sheeting, and by good the moulding of blown film
Material film, cuts through cutting machine, and the plastic sheeting of well cutting is carried out welding.
Embodiment 2:
A kind of high toughness plastic bag for packaging for foodstuff, is made up of by weight following component: stearic acid 100 parts, dioctyl phthalate
Ethyl ester 21 parts, barium stearate 4 parts, 23 parts of cactus, marine alga 24 parts, preservative 8 parts, crosslinking agent 1 part, toughener 4 parts, starch 3
Part, citric acid 6 parts, glycerine 10 parts.
Described preservative is the mixture of fennel, the leaf of bamboo and rosemary.
Described fennel, the leaf of bamboo, the weight ratio of rosemary are 2:7:1.
Described toughener is the mixture of polybutadiene rubber, POE and polyisobutene.
The production technology of described preservative is as follows: 1) be carried out cutting afterwards by fennel, the leaf of bamboo, rosemary, and
It is, after 2:7:1 mixes, mixture to be put in microwave drier and kills by fennel, the leaf of bamboo, the weight ratio of rosemary
Bacterium is dried, and makes mixture be thermally dried in the microwave drier of 700W 5 times, and the mixture after drying passes through powder
After broken machine is pulverized, in crushed material, add water, and filter after steam being distilled 5 hours, mixed after pulverizing
Compound is put in sealing device and is sealed, and after carrying out mixture at 5 DEG C placing 30 minutes, is carried out by mixture
Filter and put in drying device and be dried；
2), after the mixture of step 1) is placed in ethanol solution carrying out soaking 50 minutes, mixture is put into water-bath
In, and make mixture heating and refluxing extraction 2 hours at 73 DEG C, after carrying out being cooled to room temperature by mixture and filter, receive
Collection filtrate, adds ethanol in filter residue and filter residue is carried out secondary back 28 minutes, after liquid to be mixed is cooled to room temperature, and will mixing
Liquid filters, and the filtrate after filtering is placed at 2 DEG C to carry out sealing placing after 15 minutes and filters, and collects filtrate；
3) take off heavy liquid after adding petroleum ether in filtrate and mixture being extracted, then addition petroleum ether enters in mixture
Row reextraction, and extract is sealed preserve and filter after carrying out placing 10 minutes, the filtrate after filtering adds methyl alcohol,
And carry out concentrate drying in mixture is placed on Rotary Evaporators；
4) dried mixture centrifuge is rotated, and makes mixture at 23 DEG C centrifugal 15 minutes, and control from
The rotary speed of scheming is 1350r/min, takes supernatant, and be placed in filter by mixture after being filtered by solution
Filter, and the mixture after filtering carries out cooling and stands after 30 minutes mixture is carried out secondary filter, the most available
Preservative.
The production technology of described polybag is as follows: 1) takes marine alga 24 parts and puts in distilled water and be rinsed, the marine alga after cleaning
Carry out cutting into bulk, after being then placed in the hot water that temperature is 96 DEG C leaching boiling hot 1 minute, water is drained, marine alga is put into
To sodium carbonate liquor, and to make solid-to-liquid ratio be 1:8, and is extracted 1 hour at 45 DEG C by marine alga, and the mixture after extracting is carried out
After filtration, in mixture, add hydrochloric acid stand after 10 minutes, mixture distilled water is carried out, and the sea after cleaning
Algae is put in dehydration device and is dehydrated, and the water content controlling marine alga is 30%；
2) taking 23 parts of cactus to put in distilled water and be rinsed, the cactus after cleaning carries out cutting into bulk, and puts into
After ethanol solution being carried out soak 10 minutes, water is drained, cactus is put into hydrochloric acid solution, and make cactus exist
After extracting 1.5 hours at 60 DEG C, in mixture, add activated carbon, calcium chloride and be stirred 4 hours, mixture is put into
Filtering in filter, cactus, activated carbon, the weight ratio of calcium chloride are 5:2:1；
3) by the marine alga processed through step 1) and through step 2) cactus that processed mixes, put by mixture
Enter in beater and pull an oar, and during making beating, in mixture, add distilled water, ethanol, and make marine alga: distilled water:
The weight ratio of ethanol is 2:5:1, after being stirred mixture pulling an oar 8 minutes, uses ultrasonic wave to extract in mixture, makes to mix
After compound stirs extraction 20 minutes under 110W microwave reactor and ul-trasonic irradiation, in mixture, add pectase 3 parts, lemon
Lemon acid 6 parts after being stirred 1 minute, in mixture is placed on the water-bath of 70 DEG C, heating and refluxing extraction after 4 hours and is carried out
Filter, filtered fluid is put in rotary evaporator and made mixture rotary evaporation after 3 hours under the conditions of 72 DEG C, then by mixture
Put into filter to filter；
4), after being added in filtered fluid and make mixed liquor be stirred 5 minutes at 86 DEG C by starch 3 parts, in solution, glycerine is added
10 parts and be stirred 30 minutes, and the reaction temperature controlling solution is 24 DEG C, and mixed solution stands 20 in an aseptic environment
After minute, solution is filtered, in solution, add stearic acid 100 parts, dicarboxylic acid ethyl ester 21 parts, barium stearate 4 parts, and make
Mixture is stirred 39 minutes at 68 DEG C, after mixture is cooled to 25 DEG C, is put into by mixture in shear and carries out
Pulverize cutting, and the plastics of well cutting are sieved by the sieve of 100 mesh；
5) plastics carrying out screening through step 4) are put in reactor, and after making reactant melt at 195 DEG C,
And make reactant become molten condition, and in mixture, put into preservative 8 parts, crosslinking agent 1 part, toughener 4 parts and be stirred；
6) mixture that step 5) is produced is put into inflation film manufacturing machine carries out blown film and makes plastic sheeting, and by good the moulding of blown film
Material film, cuts through cutting machine, and the plastic sheeting of well cutting is carried out welding.
Embodiment 3:
A kind of high toughness plastic bag for packaging for foodstuff, is made up of by weight following component: stearic acid 100 parts, dioctyl phthalate
Ethyl ester 20 parts, barium stearate 6 parts, 18 parts of cactus, marine alga 30 parts, preservative 7 parts, crosslinking agent 3 parts, toughener 2 parts, starch 3
Part, citric acid 4 parts, glycerine 10 parts.
Described preservative is the mixture of fennel, the leaf of bamboo and rosemary.
Described fennel, the leaf of bamboo, the weight ratio of rosemary are 2:7:1.
Described toughener is the mixture of polybutadiene rubber, POE and polyisobutene.
The production technology of described preservative is as follows: 1) be carried out cutting afterwards by fennel, the leaf of bamboo, rosemary, and
It is, after 2:7:1 mixes, mixture to be put in microwave drier and kills by fennel, the leaf of bamboo, the weight ratio of rosemary
Bacterium is dried, and makes mixture be thermally dried in the microwave drier of 700W 4 times, and the mixture after drying passes through powder
After broken machine is pulverized, in crushed material, add water, and filter after steam being distilled 5 hours, mixed after pulverizing
Compound is put in sealing device and is sealed, and after carrying out mixture at 5 DEG C placing 30 minutes, is carried out by mixture
Filter and put in drying device and be dried；
2), after the mixture of step 1) is placed in ethanol solution carrying out soaking 38 minutes, mixture is put into water-bath
In, and make mixture heating and refluxing extraction 1.9 hours at 85 DEG C, after carrying out being cooled to room temperature by mixture and filter,
Collect filtrate, in filter residue, add ethanol and filter residue is carried out secondary back 28 minutes, after liquid to be mixed is cooled to room temperature, will be mixed
Close liquid to filter, and the filtrate after filtering is placed at 3 DEG C to carry out sealing placing after 15 minutes and filters, and collects filter
Liquid；
3) take off heavy liquid after adding petroleum ether in filtrate and mixture being extracted, then addition petroleum ether enters in mixture
Row reextraction, and extract is sealed preserve and filter after carrying out placing 20 minutes, the filtrate after filtering adds methyl alcohol,
And carry out concentrate drying in mixture is placed on Rotary Evaporators；
4) dried mixture centrifuge is rotated, and makes mixture at 20 DEG C centrifugal 15 minutes, and control from
The rotary speed of scheming is 1350r/min, takes supernatant, and be placed in filter by mixture after being filtered by solution
Filter, and the mixture after filtering carries out cooling and stands after 30 minutes mixture is carried out secondary filter, the most available
Preservative.
The production technology of described polybag is as follows: 1) takes marine alga 30 parts and puts in distilled water and be rinsed, the marine alga after cleaning
Carry out cutting into bulk, after being then placed in the hot water that temperature is 96 DEG C leaching boiling hot 1 minute, water is drained, marine alga is put into
To sodium carbonate liquor, and to make solid-to-liquid ratio be 1:8, and is extracted 1 hour at 45 DEG C by marine alga, and the mixture after extracting is carried out
After filtration, in mixture, add hydrochloric acid stand after 14 minutes, mixture distilled water is carried out, and the sea after cleaning
Algae is put in dehydration device and is dehydrated, and the water content controlling marine alga is 20%；
2) taking 18 parts of cactus to put in distilled water and be rinsed, the cactus after cleaning carries out cutting into bulk, and puts into
After ethanol solution being carried out soak 10 minutes, water is drained, cactus is put into hydrochloric acid solution, and make cactus exist
After extracting 1.5 hours at 60 DEG C, in mixture, add activated carbon, calcium chloride and be stirred 5 hours, mixture is put into
Filtering in filter, cactus, activated carbon, the weight ratio of calcium chloride are 5:2:1；
3) by the marine alga processed through step 1) and through step 2) cactus that processed mixes, put by mixture
Enter in beater and pull an oar, and during making beating, in mixture, add distilled water, ethanol, and make marine alga: distilled water:
The weight ratio of ethanol is 2:5:1, after being stirred mixture pulling an oar 7 minutes, uses ultrasonic wave to extract in mixture, makes to mix
After compound stirs extraction 20 minutes under 110W microwave reactor and ul-trasonic irradiation, in mixture, add pectase 1 part, lemon
Lemon acid 4 parts after being stirred 1 minute, in mixture is placed on the water-bath of 70 DEG C, heating and refluxing extraction after 4 hours and is carried out
Filter, filtered fluid is put in rotary evaporator and made mixture rotary evaporation after 3 hours under the conditions of 72 DEG C, then by mixture
Put into filter to filter；
4), after being added in filtered fluid and make mixed liquor be stirred 8 minutes at 86 DEG C by starch 3 parts, in solution, glycerine is added
10 parts and be stirred 30 minutes, and the reaction temperature controlling solution is 20 DEG C, and mixed solution stands 30 in an aseptic environment
After minute, solution is filtered, in solution, add stearic acid 100 parts, dicarboxylic acid ethyl ester 20 parts, barium stearate 6 parts, and make
Mixture is stirred 32 minutes at 70 DEG C, after mixture is cooled to 25 DEG C, is put into by mixture in shear and carries out
Pulverize cutting, and the plastics of well cutting are sieved by the sieve of 100 mesh；
5) plastics carrying out screening through step 4) are put in reactor, and after making reactant melt at 190 DEG C,
And make reactant become molten condition, and in mixture, put into preservative 7 parts, crosslinking agent 3 parts, toughener 2 parts and be stirred；
6) mixture that step 5) is produced is put into inflation film manufacturing machine carries out blown film and makes plastic sheeting, and by good the moulding of blown film
Material film, cuts through cutting machine, and the plastic sheeting of well cutting is carried out welding.
Table 1 polybag the performance test results
Above-described embodiment is only the preferred technical solution of the present invention, and is not construed as the restriction for the present invention, the guarantor of the present invention
The technical scheme that the scope of protecting should be recorded with claim, replaces including the equivalent of technical characteristic in the technical scheme that claim is recorded
The scheme of changing is protection domain, and equivalent the most in this range is improved, also within protection scope of the present invention.
Claims (6)
1. the high toughness plastic bag for packaging for foodstuff, it is characterised in that be made up of by weight following component: stearic acid
100 parts, dicarboxylic acid ethyl ester 16-21 part, barium stearate 4-9 part, cactus 15-23 part, marine alga 24-30 part, preservative 7-8 part,
Crosslinking agent 1-3 part, toughener 2-4 part, starch 3-5 part, citric acid 2-6 part, glycerine 10-12 part.
A kind of high toughness plastic bag for packaging for foodstuff the most according to claim 1, it is characterised in that: described preservative
Mixture for fennel, the leaf of bamboo and rosemary.
A kind of high toughness plastic bag for packaging for foodstuff the most according to claim 2, it is characterised in that: described fennel,
The leaf of bamboo, the weight ratio of rosemary are 2:7:1.
A kind of high toughness plastic bag for packaging for foodstuff the most according to claim 3, it is characterised in that described preservative
Production technology as follows: 1) be carried out cutting afterwards by fennel, the leaf of bamboo, rosemary, and by fennel, the leaf of bamboo, rosemary
Weight ratio be after 2:7:1 mixes, mixture is put into microwave drier carries out sterilizing and drying, and make mixture exist
The microwave drier of 700W is thermally dried 3-5 time, after the mixture after drying is pulverized by pulverizer, to
Adding water in crushed material, and carry out steam distilling filtration after 3-5 hour, the mixture after pulverizing puts into sealing device
In seal, and carry out mixture placing after 30-50 minute at 5-6 DEG C, carry out mixture filtering and put into dry
Device is dried；
2) mixture of step 1) is placed in ethanol solution carries out soaking after 38-50 minute, mixture is put into water-bath
In Guo, and make mixture heating and refluxing extraction 1.5-2 hour at 73-85 DEG C, go forward side by side after carrying out being cooled to room temperature by mixture
Row filters, and collects filtrate, adds ethanol and filter residue is carried out secondary back 28-36 minute in filter residue, and liquid to be mixed is cooled to
After room temperature, mixed liquor is filtered, and the filtrate after filtering be placed on 2-3 DEG C at carry out sealing and place after 15-20 minute
Filter, collect filtrate；
3) take off heavy liquid after adding petroleum ether in filtrate and mixture being extracted, then addition petroleum ether enters in mixture
Row reextraction, and seal extract to preserve and carry out to place after 10-20 minute and filter, the filtrate after filtering adds first
Alcohol, and carry out concentrate drying in mixture is placed on Rotary Evaporators；
4) dried mixture centrifuge is rotated, and make mixture be centrifuged 10-15 minute at 20-23 DEG C, and
The rotary speed controlling centrifuge is 1350-1500r/min, takes supernatant, and put into by mixture after being filtered by solution
Filter filters, and the mixture after filtering carries out cooling and stands after 20-30 minute mixture is carried out two
Secondary filtration, i.e. can get preservative.
A kind of high toughness plastic bag for packaging for foodstuff the most according to claim 4, it is characterised in that described polybag
Production technology as follows: 1) take marine alga 24-30 part and put in distilled water and be rinsed, the marine alga after cleaning carries out cutting into block
Shape, after being then placed in the hot water that temperature is 85-96 DEG C leaching boiling hot 1-2 minute, drains water, puts into marine alga to sodium carbonate
In solution, and to make solid-to-liquid ratio be 1:8, and is extracted 1 hour at 45 DEG C by marine alga, after the mixture after extracting filters,
In mixture, add hydrochloric acid stand after 10-14 minute, mixture distilled water is carried out, and the marine alga after cleaning is put
Enter to be dehydrated in device and be dehydrated, and the water content controlling marine alga is 20-30%；
2) taking cactus 15-23 part to put in distilled water and be rinsed, the cactus after cleaning carries out cutting into bulk, and puts
Enter after ethanol solution being carried out soak 10-13 minute, water is drained, cactus is put into hydrochloric acid solution, and make celestial being
After people's palm extracts 1.5 hours at 50-60 DEG C, in mixture, add activated carbon, calcium chloride and be stirred 4-6 hour,
Being put in filter by mixture and filter, cactus, activated carbon, the weight ratio of calcium chloride are 5:2:1；
3) by the marine alga processed through step 1) and through step 2) cactus that processed mixes, put by mixture
Enter in beater and pull an oar, and during making beating, in mixture, add distilled water, ethanol, and make marine alga: distilled water:
The weight ratio of ethanol is 2:5:1, after mixture being stirred making beating 6-8 minute, uses ultrasonic wave to extract in mixture, makes
After mixture stirs extraction 20-23 minute under 110W microwave reactor and ul-trasonic irradiation, in mixture, add pectase
1-3 part, citric acid 2-6 part after being stirred 1-2 minute, be heated to reflux carrying in mixture is placed on the water-bath of 65-70 DEG C
After taking 4 hours and filter, filtered fluid is put in rotary evaporator and is made mixture rotary evaporation 3 under the conditions of 72 DEG C little
Shi Hou, then mixture is put into filter filter；
4), after starch 3-5 part being added in filtered fluid and makes mixed liquor be stirred 5-8 minute at 86 DEG C, add in solution
Glycerine 10-12 part is also stirred 20-30 minute, and the reaction temperature controlling solution is 15-24 DEG C, by mixed solution aseptic
After standing 20-30 minute under environment, solution is filtered, in solution, add stearic acid 100 parts, dicarboxylic acid ethyl ester 16-21
Part, barium stearate 4-9 part, and make mixture be stirred 32-39 minute at 68-72 DEG C, mixture is cooled to 25-28 DEG C
After, mixture is put into and shear is carried out pulverize cutting, and the plastics of well cutting are carried out by the sieve of 10-100 mesh
Sieve；
5) plastics carrying out screening through step 4) are put in reactor, and make reactant melt at 180-195 DEG C
Afterwards, and make reactant become molten condition, and in mixture, put into preservative 7-8 part, crosslinking agent 1-3 part, toughener 2-4 part
And be stirred；
6) mixture that step 5) is produced is put into inflation film manufacturing machine carries out blown film and makes plastic sheeting, and by good the moulding of blown film
Material film, cuts through cutting machine, and the plastic sheeting of well cutting is carried out welding.
A kind of high toughness plastic bag for packaging for foodstuff the most according to claim 1, it is characterised in that: described toughener
For any one or the mixture of combination of the above in polybutadiene rubber, POE and polyisobutene.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003439A (en) * | 2017-12-28 | 2018-05-08 | 常盛杰 | A kind of anti-corrosion high toughness plastic bag |
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Application publication date: 20160713 |