CN108727636A - A kind of Degradable master batch, the preparation method of the plastic film comprising the master batch and plastic film - Google Patents
A kind of Degradable master batch, the preparation method of the plastic film comprising the master batch and plastic film Download PDFInfo
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- CN108727636A CN108727636A CN201810275379.5A CN201810275379A CN108727636A CN 108727636 A CN108727636 A CN 108727636A CN 201810275379 A CN201810275379 A CN 201810275379A CN 108727636 A CN108727636 A CN 108727636A
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- plastic film
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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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/223—Packed additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
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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
- C08K5/092—Polycarboxylic acids
Abstract
A kind of Degradable master batch, the processing method of the plastic film comprising the master batch and plastic film.It is related to the processing method of a kind of field of plastics processing more particularly to Degradable master batch, the plastic film comprising the master batch and plastic film.It can degrade in many ways, degradation speed is fast and efficient.The raw material of a kind of Degradable master batch, the Degradable master batch includes ferrocene, calcium carbonate, citric acid, dispersant and photosensitizer, and by weight percentage, the group of the raw material is divided into：Ferrocene 8%-12%, calcium carbonate 72%-76%, citric acid 4%-8%, dispersant 1%-5% and photosensitizer 4%-8%.The dispersant is barium stearate, zinc stearate, calcium stearate, cadmium stearate, magnesium stearate, compounding one or more of in copper stearate.The present invention can promote plastic film to realize that multidimensional is degradable while improving degradation rate so that the degradation condition of plastic film further relaxes, and can degrade in many ways and degradation speed is fast, efficient.
Description
Technical field
The present invention relates to a kind of field of plastics processing more particularly to Degradable master batch, the plastic film comprising the master batch and
The preparation method of plastic film.
Background technology
Polybag, preservative film are the articles for daily use in people's life, are generally made of high-molecular compounds such as polyethylene,
Although plastics belong to recyclable rubbish, but the excessive use due to plastics in life, and the unit take-back cost of plastics is relatively low, makes
It is not in place at the recovery operation of plastics, due to using high molecular material, molecular structure stabilized to be difficult to degrade under field conditions (factors),
The huge pollution to environment is caused, great damage is caused to environment for human survival.
For this problem, an application for a patent for invention (CN disclosed in State Intellectual Property Office 2016-10-26
A kind of easy-degradation environment-friendlyplastic plastic bags of 106046490A and preparation method thereof) disclose easy-degradation environment-friendlyplastic plastic bag using polyethylene,
Polyolefin copolymer, biodegradable plastic and regenerated polythene are primary raw material, auxiliary to be prepared in color masterbatch and drier, are had
Excellent toughness temperature resistance and acid-alkali-resistant degree, it is capable of being fast degraded in the natural environment, and can recycle.But wherein
Raw material only with biodegradable plastic as production polybag only has effect to the microorganism in soil, and degradation speed is slow, imitates
Rate is low.
Invention content
The present invention in view of the above problems, provide it is a kind of can degrade in many ways, degradation speed is fast and it is efficient can
The preparation method of degradation master batch, the plastic film comprising the master batch and plastic film.
The technical scheme is that：The raw material of a kind of Degradable master batch, the Degradable master batch includes ferrocene, carbonic acid
Calcium, citric acid, dispersant and photosensitizer, by weight percentage, the group of the raw material are divided into：Ferrocene 8%-12%, carbonic acid
Calcium 72%-76%, citric acid 4%-8%, dispersant 1%-5% and photosensitizer 4%-8%.
The dispersant is one in barium stearate, zinc stearate, calcium stearate, cadmium stearate, magnesium stearate, copper stearate
Kind or several compoundings；
The photosensitizer is benzophenone, acetophenone hexachloroacetone, tetramethyl -4,4- diamino ketone, four fourth of curing
One or more of compounding in Ji Qiuzhi ketone, diphenylamine.
The raw material of the Degradable master batch includes ferrocene, calcium carbonate, citric acid, dispersant and photosensitizer, by weight hundred
Divide than meter, the group of the raw material is divided into：Ferrocene 11%, calcium carbonate 76%, citric acid 4%, dispersant 4% and photosensitizer 5%.
The raw material of the Degradable master batch includes ferrocene, calcium carbonate, citric acid, dispersant and photosensitizer, by weight
Meter, the group of the raw material are divided into：Ferrocene 12%, calcium carbonate 72%, citric acid 8%, dispersant 4% and photosensitizer 4%.
The raw material of the Degradable master batch includes ferrocene, calcium carbonate, citric acid, dispersant and photosensitizer, by weight
Meter, the group of the raw material are divided into：Ferrocene 10%, calcium carbonate 74%, citric acid 6%, dispersant 4% and photosensitizer 6%.
Include the plastic film of Degradable master batch, the raw material of the plastic film include polyethylene and Degradable master batch
The weight proportion of compounding, the polyethylene and the Degradable master batch is 1:1.
The raw material include polyethylene 50%, ferrocene 5%, calcium carbonate 37%, citric acid by weight percentage
3%, dispersant 2% and photosensitizer 3%.
A kind of processing method of the plastic film comprising Degradable master batch, which is characterized in that process as follows：
1) feeding；
2) it melts；
2.1) Degradable master batch and polyethylene particle are put into heating devices heat,
2.2) mixture for being heated into molten condition is stirred, is uniformly mixed,
3) machine-shaping；
3.1) mixture of molten condition is subjected to blown film operation, forms film bubble,
3.2) film bubble obtained in step 3.1) is formed to the certain plastic film of thickness after repressed at high operating temperatures,
3.3) plastic film obtained in step 3.2) is cooled down, forms semi-finished plastic film；
4) it prints, semi-finished plastic film is put into printing equipment printed patterns, finished product is formed, finishes.
9, a kind of processing method of plastic film comprising Degradable master batch according to claim 8, feature exist
In the step 1) feeding comprises the concrete steps that：
1.1) polyethylene particle and master batch are separated, are sucked polyethylene particle and master batch not respectively by vacuum intake
Same hopper,
1.2) it is weighed respectively by the metering device below different hoppers,
1.3) agitating device stirring is fallen into after weighing,
1.4) step 2) is fallen into after stirring, is finished.
10, a kind of processing method of plastic film comprising Degradable master batch according to claim 8, feature exist
In the temperature heated in the step 2.1) is 200 DEG C -250 DEG C.
Mixing plastic film made of post-processing thoroughly with vinyon particle using the master batch in the present invention can be a variety of
Plastic film is promoted to be explained under natural environmental condition, so that the degradation rate of plastic film improves.Wherein ferrocene
It is acted on sunlight so that plastic film is degraded fragmentation under the radiation of daylight, is carried out with wherein calcium carbonate in combination
It using, calcium carbonate decomposes under the irradiation of daylight, promotes the cracking of plastic film strand when decomposing, and coordinates with ferrocene,
The time of plastic film cracking can be shortened, lysis efficiency is promoted, so as to effectively increase plastic film in solar radiation
Under degradation speed.When plastic film crack under light illumination fragmentate fall in the soil when, citric acid is as bacterium in soil
Culture medium, bacterium destroys the strand of plastic film during eating citric acid, makes using citric acid as Major Foods
Plastic film is further decomposed under the action of bacterium in the soil, improve degradation efficiency.Photosensitizer improves plastics
Sensibility of the film to daylight so that the degradation rate under illumination condition is further speeded up, to promote degradation speed.Dispersion
Agent enables to each component to be dispersed in polyethylene film so that performance is identical everywhere for polyethylene film so that polyethylene
The performance of film is more stablized.Simultaneously because using various ingredients mixing, polyethylene film can be a variety of in illumination, biology etc.
Degradation is realized under natural conditions, and plastic film can be promoted to realize that multidimensional is degradable while improving degradation rate so that
The degradation condition of plastic film further relaxes, and can degrade in many ways and degradation speed is fast, efficient.
Specific implementation mode
The raw material of a kind of Degradable master batch in the present invention, the Degradable master batch includes ferrocene, calcium carbonate, lemon
Acid, dispersant and photosensitizer, by weight percentage, the group of the raw material is divided into：Ferrocene 8%-12%, calcium carbonate 72%-
76%, citric acid 4%-8%, dispersant 1%-5% and photosensitizer 4%-8%.It is mixed using the master batch and vinyon particle
Plastic film made of even post-processing can promote plastic film to be explained under a variety of natural environmental conditions, so that modeling
Expect that the degradation rate of film improves.Wherein ferrocene is acted on sunlight so that radiation of the plastic film in daylight
Lower degradation fragmentation, is used with wherein calcium carbonate in combination, and calcium carbonate decomposes under the irradiation of daylight, promotes plastics when decomposing
The cracking of membrane molecular chain coordinates with ferrocene, can shorten the time of plastic film cracking, promotes lysis efficiency, so as to
Enough effectively increase degradation speed of the plastic film under solar radiation.It is fallen when plastic film cracks to fragmentate under light illumination
When in soil, culture medium of the citric acid as bacterium in soil, bacterium is using citric acid as Major Foods, in the mistake of citric acid of eating
The strand of plastic film is destroyed in journey so that plastic film is further decomposed under the action of bacterium in the soil, is carried
Degradation efficiency is risen.Photosensitizer improves sensibility of the plastic film to daylight so that degradation rate under illumination condition into
One step is accelerated, to promote degradation speed.Dispersant enables to each component to be dispersed in polyethylene film so that poly- second
Performance is identical everywhere for alkene film so that the performance of polyethylene film is more stablized.Simultaneously because using various ingredients mixing, gather
Vinyl film can realize degradation under a variety of natural conditions such as illumination, biology, can promote while improving degradation rate
Plastic film is set to realize that multidimensional is degradable so that the degradation condition of plastic film further relaxes, and can degrade in many ways
And degradation speed is fast, efficient.
The dispersant is one in barium stearate, zinc stearate, calcium stearate, cadmium stearate, magnesium stearate, copper stearate
Kind or several compoundings；Suitable for a variety of plastic films, the compatibility of the ingredient and vinyon in master batch can be promoted, is prevented
Only each component in master batch is assembled in plastic film, and the good fluidity in processing, will not cause color drift, thin in plastics
Certain thermal stability can be kept in film process, do not interfere with the performance of plastic film.Also it ensures that and manufactures
Plastic film performance is identical everywhere so that the performance of sealed polyethylene plastic more stablize.
The photosensitizer is benzophenone, acetophenone hexachloroacetone, tetramethyl -4,4- diamino ketone, four fourth of curing
One or more of compounding in Ji Qiuzhi ketone, diphenylamine.Improve sensibility of the plastic film to illumination so that plastic film
Cracking is more prone to quick under illumination condition, to promote the degradation efficiency of plastic film entirety.Several implementations are enumerated below
Invention is further explained for example.
Take a certain number of master batches, with etc. the polyethylene of weight carry out being mixed and made into plastic film sample, in similarity condition
Under in each embodiment plastic film carry out Degrading experiment.
Embodiment one
The raw material of the Degradable master batch includes ferrocene, calcium carbonate, citric acid, dispersant and photosensitizer, by weight hundred
Divide than meter, the group of the raw material is divided into：Ferrocene 11%, calcium carbonate 76%, citric acid 4%, dispersant 4% and photosensitizer 5%.
The percentage of each component in embodiment one is that the weight of each component accounts for the percentage of master batch total weight.With listed in embodiment one
Plastic film is tested made of the master batch of act and the polyethylene of identical weight, and test result is as shown in Table 1.
Table one
Although degradation speed is very fast compared to the prior art it can be seen from table one, and (the light either under sunshine condition
According to) or (soil) can degrade under water vapor condition (humidity) or under microbiological condition, realize the multidimensional of plastic products
Degradation, but cracked still not enough uniformly under air and illumination effect by can be derived that practical in table one, crack the broken of formation
Piece cause not of uniform size so that the time cracked under the effect of later stage Soil Microorganism is uneven, influences integral plastics product drop
The efficiency of solution.
Embodiment two
The raw material of the Degradable master batch includes ferrocene, calcium carbonate, citric acid, dispersant and photosensitizer, by weight
Meter, the group of the raw material are divided into：Ferrocene 12%, calcium carbonate 72%, citric acid 8%, dispersant 4% and photosensitizer 4%.
It is tested, is tested with plastic film made of the polyethylene of master batch and identical weight cited in embodiment two
As a result as shown in Table 2.
Table two
It is cracked still relatively slowly, although can finally realize more under illumination and air conditions it can be seen from watch two
It degrades simultaneously under the conditions of kind, but degradation time is long, efficiency is low, and degradation effect is caused to be deteriorated.
Embodiment three
The raw material of the Degradable master batch includes ferrocene, calcium carbonate, citric acid, dispersant and photosensitizer, by weight
Meter, the group of the raw material are divided into：Ferrocene 10%, calcium carbonate 74%, citric acid 6%, dispersant 4% and photosensitizer 6%.
It is tested, is tested with plastic film made of the polyethylene of master batch and identical weight cited in embodiment three
As a result as shown in Table 3.
Table three
By table three as it can be seen that the master batch in embodiment three be added to the plastic film formed in polyethylene cracking when it is the most steady
Fixed rapid, the chip size cracked out is uniform, and the degraded in soil time is short, and speed is fast and efficient.
Include the plastic film of Degradable master batch, the raw material of the plastic film include polyethylene and Degradable master batch
The weight proportion of compounding, the polyethylene and the Degradable master batch is 1:1.
The raw material include polyethylene 50%, ferrocene 5%, calcium carbonate 37%, citric acid by weight percentage
3%, dispersant 2% and photosensitizer 3%.This weight percent is account for plastic film total weight with each component in plastic film hundred
Divide ratio.Based on the master batch in embodiment three, with etc. the polyethylene particles of weight compound, manufactured plastic film is short
Degradation can be realized in time under a variety of natural conditions, so that the degradation rate of plastic film improves.Wherein ferrocene
It is acted on sunlight so that plastic film is degraded fragmentation under the radiation of daylight, is carried out with wherein calcium carbonate in combination
It using, calcium carbonate decomposes under the irradiation of daylight, promotes the cracking of plastic film strand when decomposing, and coordinates with ferrocene,
The time of plastic film cracking can be shortened, lysis efficiency is promoted, so as to effectively increase plastic film in solar radiation
Under degradation speed.When plastic film crack under light illumination fragmentate fall in the soil when, citric acid is as bacterium in soil
Culture medium, bacterium destroys the strand of plastic film during eating citric acid, makes using citric acid as Major Foods
Plastic film is further decomposed under the action of bacterium in the soil, improve degradation efficiency.Photosensitizer improves plastics
Sensibility of the film to daylight so that the degradation rate under illumination condition is further speeded up, to promote degradation speed.Dispersion
Agent enables to each component to be dispersed in polyethylene film so that performance is identical everywhere for polyethylene film so that polyethylene
The performance of film is more stablized.Simultaneously because using various ingredients mixing, polyethylene film can be a variety of in illumination, biology etc.
Degradation is realized under natural conditions, and plastic film can be promoted to realize that multidimensional is degradable while improving degradation rate so that
The degradation condition of plastic film further relaxes, and can degrade in many ways and degradation speed is fast, efficient.
A kind of processing method of the plastic film comprising Degradable master batch, which is characterized in that process as follows：
1) feeding；It weighs in feeding process so that polyethylene particle enters in agitating device in proportion with master batch, makes
Each group distribution ratio it is more accurate, the degradation of plastic film produced is rapider.
2) it melts；
2.1) Degradable master batch and polyethylene particle are put into heating devices heat,
2.2) mixture for being heated into molten condition is stirred, is uniformly mixed, is carried out again under material melts state
Secondary stirring so that the proportioning of material entirety is more uniform, and the degradation of plastic film produced is rapider.
3) machine-shaping；
3.1) mixture of molten condition is subjected to blown film operation, forms film bubble,
3.2) film bubble obtained in step 3.1) is formed to the certain plastic film of thickness after repressed at high operating temperatures,
3.3) plastic film obtained in step 3.2) is cooled down, forms semi-finished plastic film；
4) it prints, semi-finished plastic film is put into printing equipment printed patterns, finished product is formed, finishes.
9, a kind of processing method of plastic film comprising Degradable master batch according to claim 8, feature exist
In the step 1) feeding comprises the concrete steps that：
1.1) polyethylene particle and master batch are separated, are sucked polyethylene particle and master batch not respectively by vacuum intake
Same hopper,
1.2) it is weighed respectively by the metering device below different hoppers,
1.3) agitating device stirring is fallen into after weighing,
1.4) it enters step 2), finishes after stirring.
10, a kind of processing method of plastic film comprising Degradable master batch according to claim 8, feature exist
In the temperature heated in the step 2.1) is 200 DEG C -250 DEG C.Master batch melts more with polyethylene particle at this temperature
Add thoroughly, and the dispersant in master batch will not be because of by heat modification, while dispersant can be played effectively at this temperature
Its performance promotes each component in master batch that can be uniformly dispersed in polyethylene rapidly, consistent to form performance everywhere
Plastic film reduces rejection rate.
Claims (10)
1. a kind of Degradable master batch, which is characterized in that the raw material of the Degradable master batch include ferrocene, calcium carbonate, citric acid,
Dispersant and photosensitizer, by weight percentage, the group of the raw material are divided into：Ferrocene 8%-12%, calcium carbonate 72%-
76%, citric acid 4%-8%, dispersant 1%-5% and photosensitizer 4%-8%.
2. a kind of Degradable master batch according to claim 1, which is characterized in that the dispersant is barium stearate, tristearin
One or more of compounding in sour zinc, calcium stearate, cadmium stearate, magnesium stearate, copper stearate；
The photosensitizer is benzophenone, acetophenone hexachloroacetone, tetramethyl -4,4- diamino ketone, curing tetrabutyl autumn
One or more of compounding in sesame ketone, diphenylamine.
3. a kind of Degradable master batch according to claim 1, which is characterized in that the raw material of the Degradable master batch includes two
Luxuriant iron, calcium carbonate, citric acid, dispersant and photosensitizer, by weight percentage, the group of the raw material are divided into：Ferrocene 11%,
Calcium carbonate 76%, citric acid 4%, dispersant 4% and photosensitizer 5%.
4. a kind of Degradable master batch according to claim 1, which is characterized in that the raw material of the Degradable master batch includes two
Luxuriant iron, calcium carbonate, citric acid, dispersant and photosensitizer, by weight, the group of the raw material are divided into：Ferrocene 12%, carbonic acid
Calcium 72%, citric acid 8%, dispersant 4% and photosensitizer 4%.
5. a kind of Degradable master batch according to claim 1, which is characterized in that the raw material of the Degradable master batch includes two
Luxuriant iron, calcium carbonate, citric acid, dispersant and photosensitizer, by weight, the group of the raw material are divided into：Ferrocene 10%, carbonic acid
Calcium 74%, citric acid 6%, dispersant 4% and photosensitizer 6%.
6. a kind of plastic film including Degradable master batch described in claim 1, which is characterized in that the original of the plastic film
Material includes the compounding of polyethylene and Degradable master batch, and the weight proportion of the polyethylene and the Degradable master batch is 1:1.
7. the plastic film according to claim 6 for including Degradable master batch, which is characterized in that the raw material are by weight
Percentages include polyethylene 50%, ferrocene 5%, calcium carbonate 37%, citric acid 3%, dispersant 2% and photosensitizer 3%.
8. a kind of preparation method of the plastic film comprising Degradable master batch described in claim 6, which is characterized in that by as follows
Step is processed：
1) feeding；
2) it melts；
2.1) Degradable master batch and polyethylene particle are put into heating devices heat,
2.2) mixture for being heated into molten condition is stirred, is uniformly mixed,
3) machine-shaping；
3.1) mixture of molten condition is subjected to blown film operation, forms film bubble,
3.2) film bubble obtained in step 3.1) is formed to the certain plastic film of thickness after repressed at high operating temperatures,
3.3) plastic film obtained in step 3.2) is cooled down, forms semi-finished plastic film；
4) it prints, semi-finished plastic film is put into printing equipment printed patterns, finished product is formed, finishes.
9. a kind of preparation method of plastic film comprising Degradable master batch according to claim 8, which is characterized in that institute
State comprising the concrete steps that for step 1) feeding：
1.1) polyethylene particle and master batch are separated, are sucked polyethylene particle and master batch respectively by vacuum intake different
Hopper,
1.2) it is weighed respectively by the metering device below different hoppers,
1.3) agitating device stirring is fallen into after weighing,
1.4) step 2) is fallen into after stirring, is finished.
10. a kind of preparation method of plastic film comprising Degradable master batch according to claim 8, which is characterized in that
The temperature heated in the step 2.1) is 200 DEG C -250 DEG C.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090300A (en) * | 1993-12-27 | 1994-08-03 | 中国科学院上海有机化学研究所 | A kind of controllably graded polyolefine plastics, manufacturing and application that contains aminoalkyl ferrocene derivative |
| CN1239725A (en) * | 1999-06-22 | 1999-12-29 | 沈阳南阳经贸集团有限公司 | Polynary degradable resin composition and its preparation process |
| CN1267681A (en) * | 1999-03-19 | 2000-09-27 | 北京清大亚太科技研究中心 | Degradeable resin composition and its preparation and application |
| CN103408827A (en) * | 2013-08-29 | 2013-11-27 | 河北奥柯柏环保科技有限公司 | Degradable environmental-friendly mulching film and preparation method thereof |
| CN103819594A (en) * | 2014-01-28 | 2014-05-28 | 汕头大学 | Polyolefin plastic light-biodegradable modified additive as well as preparation and application thereof |
-
2018
- 2018-03-30 CN CN201810275379.5A patent/CN108727636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090300A (en) * | 1993-12-27 | 1994-08-03 | 中国科学院上海有机化学研究所 | A kind of controllably graded polyolefine plastics, manufacturing and application that contains aminoalkyl ferrocene derivative |
| CN1267681A (en) * | 1999-03-19 | 2000-09-27 | 北京清大亚太科技研究中心 | Degradeable resin composition and its preparation and application |
| CN1239725A (en) * | 1999-06-22 | 1999-12-29 | 沈阳南阳经贸集团有限公司 | Polynary degradable resin composition and its preparation process |
| CN103408827A (en) * | 2013-08-29 | 2013-11-27 | 河北奥柯柏环保科技有限公司 | Degradable environmental-friendly mulching film and preparation method thereof |
| CN103819594A (en) * | 2014-01-28 | 2014-05-28 | 汕头大学 | Polyolefin plastic light-biodegradable modified additive as well as preparation and application thereof |
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