CN109929250A - A kind of polyethylene film and its preparation process - Google Patents
A kind of polyethylene film and its preparation process Download PDFInfo
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- CN109929250A CN109929250A CN201910090078.XA CN201910090078A CN109929250A CN 109929250 A CN109929250 A CN 109929250A CN 201910090078 A CN201910090078 A CN 201910090078A CN 109929250 A CN109929250 A CN 109929250A
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- polyethylene film
- calcium carbonate
- preparation process
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- solid powder
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Abstract
The invention discloses a kind of polyethylene film and its preparation processes, belong to polyethylene film preparation process field, a kind of polyethylene film and its preparation process, nanometer grade calcium carbonate is modified by staff first, then polyethylene solution stirring finally is granulated to obtain modified calcium carbonate master batch using extruder, then the preparation of organic plastics particle is carried out, neutrality is washed to after starch and acid solution are mixed, vacuum drying obtains nanometer starch crystal solid powder, then by nanometer starch crystal solid powder, camphorwood solid powder and the mixing of quassia plant fiber powder add the mixing of vinyl silicone oil homogeneous through catalyst action, organic plastics particle is obtained after centrifuge separation and vacuum drying, finally calcium carbonate master batch and organic plastics particle are uniformly mixed and inflation film manufacturing machine are added, polyethylene film is made, it may be implemented that polyethylene film is made to have expelling parasite Insect prevention performance also makes polyethylene film have bitter taste, child is made to be not easy to swallow the article that polyethylene film is covered.
Description
Technical field
The present invention relates to polyethylene film preparation process fields, more specifically to a kind of polyethylene film and its system
Standby technique.
Background technique
With the increasingly promotion of packing technique, people no longer content just to pack simple protection product, extend product
The necessary functions such as shelf-life, and higher and higher want is proposed to the protective of certain specialities packaging in actual use
It asks.For example, the content of specific use this kind of for purified water powder, the requirement to packaging, which does not require nothing more than, has high resistance
Wet performance, is stored in the environment of high temperature and humidity for a long time to avoid the effective component in powder and the moisture absorption fails, existing packaging film
In polyethylene film abbreviation PE film, the thermoplastic polyester as obtained from vinyl polymerization, polyethylene film is colourless, it is tasteless,
Nontoxic, the shape that is translucent with the development of science and technology, the range of polyethylene film utilization is more and more wider, all can by more and more products
Covering polyethylene film protects product on the surface of product, and some products and is easy to be damaged by insects at present, and polyethylene film have compared with
Thin, insect is easy for damaging product across polyethylene film after polyethylene film abrasion.
When in manager by child, since child has extraneous things very big curiosity, so usually can be to one
A little articles are bitten and are swallowed, and the trunnion of child is narrow, and choke is easy for when child swallows some biggish articles
Firmly, so that child's expiratory dyspnea be made even to generate life danger, and some articles itself also have toxicity, after child bites
It is easy poisoning, although article has polyethylene film covering that article is isolated from the outside mostly, the thin intensity of the thickness of polyethylene film
It is low, it is easy to be damaged, so that article be made to be exposed to the external world
Summary of the invention
1. technical problems to be solved
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of polyethylene film and its preparation works
Skill, it may be implemented to make polyethylene film to have Vermins-expelling vermins-proof performance, and polyethylene film is also made to have bitter taste, make child be easy to bite and
Swallow the article that polyethylene film is covered.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
2. a kind of polyethylene film and its preparation process, comprising the following steps:
The first step, the preparation for being modified calcium carbonate master batch；
One, nanometer grade calcium carbonate is put into high speed mixing smelting machine high-speed rotation in advance by staff, then by titanate coupling agent
It is sprayed into high speed mixing smelting machine with Sprayable after mixing with atent solvent, then stirs 10-30 under conditions of 120 DEG C
It discharges after minute, modified calcium carbonate will be obtained after gained raw material stoving；
Two, then modified calcium carbonate, polyethylene solution and adjuvant are put into high-speed mixer, and in 60-100 DEG C of temperature
It is blended uniformly, after mixing, is cooled down using water cooling plant, then by gained raw material under conditions of degree and 1200r/min
Extruder extruding pelletization is added and obtains modified calcium carbonate master batch；
Second step, the preparation for carrying out organic plastics particle:
Four, starch is added in acid solution by staff, then acquired solution is placed in 40-60 DEG C of thermostatical oil
In bath, stirred 5-7 days with the speed of 100-200r/min；
Five, washing is repeated in the reaction product of previous step until the pH value of solution becomes neutral, it then will be above-mentioned
Product is dried in vacuo, and nanometer starch crystal solid powder is obtained；
Six, nanometer starch crystal solid powder, camphorwood solid powder and quassia plant fiber powder that previous step obtains are added
Enter in deionized water, then acquired solution is carried out to ultrasonic wave dispersion in 5-10 minute using ultrasonic disperse machine, then by vinyl
Silicone oil and containing hydrogen silicone oil are poured into after mixing in above-mentioned solution, then under the conditions of on homogenizer with 9000-13000r/min
Homogeneous mixing 10-15 minutes, catalyst is added, 1-3 hours, after reaction, warp are then stirred under conditions of 40-60 DEG C
The organic plastics particle coated with camphorwood powder and quassia plant fiber is obtained after centrifuge separation and vacuum drying；
Modified calcium carbonate master batch and second step that the first step obtains are obtained organic plastics particle in mixed at high speed by third step
It is uniformly mixed in machine, then through pellet conveying, fusion plastification, extrusion, inflation, corona, winding on inflation film manufacturing machine, finally
A kind of anti-pest polyethylene film with bitter taste is made.
Further, it is first washed 1-3 times, then used using sodium bicarbonate aqueous solution in the water-washing step in the second step
Salt water is washed 1-3 times, then adds activated alumina ball desiccant, it is possible to reduce the number of washing shortens the time of washing, mentions
High working efficiency reduces the dosage of water, can save water resource.
Further, the adjuvant in the first step is antistatic agent and color masterbatch.
Further, the vinyl silicone oil is high-vinyl silicone oil, and the viscosity of high-vinyl silicone oil is larger, can be more preferable
Adherency camphorwood solid powder and quassia plant fiber powder.
Further, the revolving speed of homogenizer is 9000-13000r/min in the second step.
Further, the catalyst is chromium-based catalysts.
Further, the starch, calcium carbonate powder, camphorwood solid powder and quassia plant fiber powder use nanometer
Grade grinder is pre-processed.
Further, the revolving speed of the first step high speed blender is 400-600r/min.
3. beneficial effect
Compared with the prior art, the present invention has the advantages that
(1) present invention in the preparation of organic plastics grain, be added in organic plastics grain sufficient camphorwood solid powder and
Quassia plant fiber powder contains camphor ingredient in camphorwood solid powder, and camphorwood solid powder, which covers organic plastic pellet, can make to blow
Making molding polyethylene film has the function of that Vermins-expelling vermins-proof, quassia plant fiber itself have biggish bitter taste, and quassia plant is fine
Dimension powder, which covers organic plastic pellet, can make the polyethylene film of blow molding have bitter taste, since some child's curiosity are larger usually
Some other articles are stung or swallowed to meeting mouth, may result in child's poisoning or throat blocking, stings polyethylene with mouth when child swallows
It can get one's bitters when the article that film is covered, child can spue article in mouth according to instinct, make child will not be because wrongly taking foreign matter
And be poisoned or choke, and camphorwood solid powder and quassia plant fiber are biological material, discarded in polyethylene film
After facilitate natural degradation.
(2) it is first washed 1-3 times, is passed through using sodium bicarbonate aqueous solution in water-washing step of the present invention in organic plastics
So that the pH value of solution is quickly tended to neutral using sodium bicarbonate aqueous solution, then washed 1-3 times with salt water, salt water is for diluting
Solution makes the pH value of solution carry out a step reduction, then adds activated alumina ball desiccant, activated alumina ball desiccant
Desiccation, which can not only be played, can also carry out desalination, it is possible to reduce the number of washing shortens the time of washing, improves work effect
Rate reduces the dosage of water, can save water resource.
(3) present invention is modified calcium carbonate using titanate coupling agent, makes calcium carbonate surface non-polarization, to mention
The compatibility of Gao Qiyu resin, and then the mechanical property of compound last molding polyethylene film is improved, of the invention uses height
Vinyl silicone oil is primary raw material, and the viscosity of high-vinyl silicone oil is larger, can preferably adhere to camphorwood solid powder and quassia
Plant fiber powder.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously；Described embodiments are only a part of the embodiments of the present invention；Instead of all the embodiments, it is based on
Embodiment in the present invention；It is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment；It shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "inner", "outside", " top/bottom end "
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only, and cannot understand
For indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Be equipped with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1:
Referring to Fig. 1, a kind of polyethylene film and its preparation process, include the following steps
The first step, the preparation for being modified calcium carbonate master batch；
One, nanometer grade calcium carbonate is put into high speed mixing smelting machine high-speed rotation in advance by staff, then by titanate coupling agent
It is sprayed into high speed mixing smelting machine with Sprayable after mixing with atent solvent, then stirs 10-30 under conditions of 120 DEG C
It discharges after minute, modified calcium carbonate will be obtained after gained raw material stoving；
Two, then modified calcium carbonate, polyethylene solution and adjuvant are put into high-speed mixer, adjuvant is antistatic
Agent and color masterbatch, color masterbatch are used for the toning of organic plastics grain, and antistatic agent is used to improve the antistatic effect of product, and in 60-100
It is blended uniformly, after mixing, is cooled down using water cooling, then by gained raw material under conditions of DEG C temperature and 1200r/min
Extruder extruding pelletization is added and obtains modified calcium carbonate master batch；
Calcium carbonate is modified using titanate coupling agent, makes calcium carbonate surface non-polarization, to improve itself and tree
The compatibility of rouge, and then improve the mechanical property of compound last molding polyethylene film；
Second step, the preparation for carrying out organic plastics particle:
One, starch is added in acid solution by staff, then acquired solution is placed in 40-60 DEG C of constant temperature oil bath
In pot, stirred 5-7 days with the speed of 100-200r/min；
Two, washing is repeated in the reaction product of previous step until the pH value of solution becomes neutral, it then will be above-mentioned
Product is dried in vacuo, and nanometer starch crystal solid powder is obtained；
First acquired solution is added in centrifuge in water-washing step, sodium bicarbonate aqueous solution is then added and washes 1-3 times,
Add salt water wash 1-3 time, finally add activated alumina ball desiccant, after filtering progress next step vacuum drying,
Wherein activated alumina ball desiccant can not only play desiccation can also carry out desalination to solution, and salt water is molten for diluting
Liquid further decreases the pH value of solution, it is possible to reduce the number of washing shortens the time of washing, improves working efficiency, subtracts
The dosage of few water, can save water resource.
Seven, nanometer starch crystal solid powder, camphorwood solid powder and quassia plant fiber powder that previous step obtains are added
Enter in deionized water, then acquired solution is carried out to ultrasonic wave dispersion in 5-10 minute using ultrasonic disperse machine, then by high ethylene
Base silicone oil and containing hydrogen silicone oil are poured into after mixing in above-mentioned solution, then with 9000-13000r/min condition on homogenizer
Lower homogeneous mixing 10-15 minutes, adds catalyst, then stirs 1-3 hours under conditions of 40-60 DEG C, after reaction,
The organic plastics particle coated with camphorwood powder and quassia plant fiber, organic plastics are obtained after centrifuge separates and is dried in vacuo
Particle facilitates natural degradation using biological material as primary raw material.
Due to containing camphor ingredient in camphorwood solid powder, camphorwood solid powder, which covers organic plastic pellet, can make to be blow molded into
The polyethylene film of type has the function of that Vermins-expelling vermins-proof, quassia plant fiber itself have biggish bitter taste, quassia plant fiber powder
Covering organic plastic pellet can make the polyethylene film of blow molding have bitter taste, sting polyethylene film when child swallows with mouth and covered
Article when can get one's bitters, child can spue article in mouth according to instinct, make child will not be poisoned because wrongly taking foreign matter or
Choke, and camphorwood solid powder and quassia plant fiber are biological material, facilitates certainly after polyethylene film is discarded
So degradation.
Above-mentioned starch, calcium carbonate powder, camphorwood solid powder and quassia plant fiber powder use nanoscale grinder
It is pre-processed, makes starch, calcium carbonate powder, camphorwood solid powder and quassia plant fiber powder sufficiently fineization.
Modified calcium carbonate master batch and second step that the first step obtains are obtained plastic pellet in a high speed mixer by third step
It is uniformly mixed, is then finally made on inflation film manufacturing machine through pellet conveying, fusion plastification, extrusion, inflation, corona, winding
A kind of anti-pest polyethylene film with bitter taste.
Sufficient camphorwood solid powder and quassia is added in the preparation of organic plastics grain in the present invention in organic plastics grain
Plant fiber powder contains camphor ingredient in camphorwood solid powder, and camphorwood solid powder, which covers organic plastic pellet, can make to be blow molded into
The polyethylene film of type has the function of that Vermins-expelling vermins-proof, quassia plant fiber itself have biggish bitter taste, quassia plant fiber powder
Cover organic plastic pellet can make blow molding polyethylene film have bitter taste, due to some child's curiosity are larger usually can mouth
Some other articles are stung or swallowed, child's poisoning or throat blocking is may result in, stings polyethylene film institute with mouth when child swallows
Can get one's bitters when the article of covering, child can spue article in mouth according to instinct, make child will not be due to wrongly taking foreign matter in
Poison is choked, and camphorwood solid powder and quassia plant fiber are biological material, are discarding rear in polyethylene film
Just natural degradation.
The foregoing is intended to be a preferred embodiment of the present invention；But scope of protection of the present invention is not limited thereto.
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change, should be covered by the scope of protection of the present invention.
Claims (8)
1. a kind of polyethylene film and its preparation process, include the following steps, it is characterised in that: the following steps are included:
The first step, the preparation for being modified calcium carbonate master batch；
One, nanometer grade calcium carbonate is put into high speed mixing smelting machine high-speed rotation in advance by staff, then by titanate coupling agent and lazy
Property solvent after mixing with Sprayable spray into high speed mixing smelting machine in, after then being stirred 10-30 minutes under conditions of 120 DEG C
Discharging, will obtain modified calcium carbonate after gained raw material stoving；
Two, then modified calcium carbonate, polyethylene solution and adjuvant are put into high-speed mixer, and in 60-100 DEG C of temperature and
It is blended uniformly under conditions of 1200r/min, after mixing, is cooled down using water cooling, then gained raw material is added and is squeezed out
Machine extruding pelletization obtains modified calcium carbonate master batch；
Second step, the preparation for carrying out organic plastics particle:
One, starch is added in acid solution by staff, then acquired solution is placed in 40-60 DEG C of thermostatical oil bath
In, it is stirred 5-7 days with the speed of 100-200r/min；
Two, washing is repeated in the reaction product of previous step until the pH value of solution becomes neutral,
Then above-mentioned product is dried in vacuo, obtains nanometer starch crystal solid powder；
Three, nanometer starch crystal solid powder, camphorwood solid powder and quassia plant fiber the powder addition that previous step obtains are gone
In ionized water, then acquired solution is carried out to ultrasonic wave dispersion in 5-10 minute using ultrasonic disperse machine, then by vinyl silicone oil
It pours into above-mentioned solution with containing hydrogen silicone oil and after mixing, then interior homogeneous mixing 10-15 minutes on homogenizer, add
Then catalyst is stirred 1-3 hours under conditions of 40-60 DEG C, after reaction, is obtained after centrifuge separates and is dried in vacuo
To the organic plastics particle for being coated with camphorwood powder and quassia plant fiber；
The modified calcium carbonate master batch that the first step obtains is obtained plastic pellet with second step and mixes in a high speed mixer by third step
Uniformly, then on inflation film manufacturing machine through pellet conveying, fusion plastification, extrusion, inflation, corona, winding, one kind is finally made
Anti-pest polyethylene film with bitter taste.
2. a kind of polyethylene film according to claim 1 and its preparation process, it is characterised in that: in the second step
It is first washed 1-3 times using sodium bicarbonate aqueous solution in water-washing step, then is washed 1-3 times with salt water, then add activated alumina
Ball desiccant.
3. a kind of polyethylene film according to claim 1 and its preparation process, it is characterised in that: in the first step
Adjuvant is antistatic agent and color masterbatch.
4. a kind of polyethylene film according to claim 1 and its preparation process, it is characterised in that: the vinyl silicone oil
Viscosity for high-vinyl silicone oil, high-vinyl silicone oil is larger, can preferably adhere to camphorwood solid powder and quassia plant is fine
Tie up powder.
5. a kind of polyethylene film according to claim 1 and its preparation process, it is characterised in that: in the second step
The revolving speed of matter machine is 9000-13000r/min.
6. a kind of polyethylene film according to claim 1 and its preparation process, it is characterised in that: the catalyst is chromium
Base catalyst.
7. a kind of polyethylene film according to claim 1 and its preparation process, it is characterised in that: the starch, carbonic acid
Calcium powder, camphorwood solid powder and quassia plant fiber powder are pre-processed using nanoscale grinder.
8. a kind of polyethylene film according to claim 1 and its preparation process, it is characterised in that: high in the first step
The revolving speed of fast blender is 400-600r/min.
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| CN201910090078.XA CN109929250A (en) | 2019-01-30 | 2019-01-30 | A kind of polyethylene film and its preparation process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910090078.XA CN109929250A (en) | 2019-01-30 | 2019-01-30 | A kind of polyethylene film and its preparation process |
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| CN109929250A true CN109929250A (en) | 2019-06-25 |
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| CN201910090078.XA Withdrawn CN109929250A (en) | 2019-01-30 | 2019-01-30 | A kind of polyethylene film and its preparation process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617915A (en) * | 2012-04-01 | 2012-08-01 | 安徽国风木塑科技有限公司 | Anti-mildew halogen-free flame-retardant smoke-suppression wood-plastic composite material and preparation method thereof |
| CN106009241A (en) * | 2016-07-21 | 2016-10-12 | 合肥市智源包装科技有限公司 | Environmentally friendly degradable tear-resistant polyethylene film material and preparation method thereof |
| CN106117772A (en) * | 2016-07-21 | 2016-11-16 | 合肥市智源包装科技有限公司 | A kind of toothpaste sheet material environment-friendly degradable type polyethylene coating materials and preparation method thereof |
-
2019
- 2019-01-30 CN CN201910090078.XA patent/CN109929250A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617915A (en) * | 2012-04-01 | 2012-08-01 | 安徽国风木塑科技有限公司 | Anti-mildew halogen-free flame-retardant smoke-suppression wood-plastic composite material and preparation method thereof |
| CN106009241A (en) * | 2016-07-21 | 2016-10-12 | 合肥市智源包装科技有限公司 | Environmentally friendly degradable tear-resistant polyethylene film material and preparation method thereof |
| CN106117772A (en) * | 2016-07-21 | 2016-11-16 | 合肥市智源包装科技有限公司 | A kind of toothpaste sheet material environment-friendly degradable type polyethylene coating materials and preparation method thereof |
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Application publication date: 20190625 |
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