CN108437499A - A kind of mechanism and preparation method of biology base degradation courier bag - Google Patents
A kind of mechanism and preparation method of biology base degradation courier bag Download PDFInfo
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- CN108437499A CN108437499A CN201810114796.1A CN201810114796A CN108437499A CN 108437499 A CN108437499 A CN 108437499A CN 201810114796 A CN201810114796 A CN 201810114796A CN 108437499 A CN108437499 A CN 108437499A
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- layer
- storehouse
- external mold
- stirring
- collecting bin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention belongs to biology base degradation technique fields, more particularly to a kind of mechanism and preparation method of biology base degradation courier bag, including agitating device, dust collecting, comminutor, coextrusion film blowing machine, the dust collecting includes collecting bin, collection conduit is equipped at the top of the collecting bin, the collection conduit other end is arranged at the top of agitating device, spray piping is equipped in the collecting bin, the spray piping bottom is equipped with spray head, the collecting bin bottom is connected with recycling bins, the collecting bin side is connected with purge pipe, the purge pipe is connected with cleaning position, prefilter layer is equipped in the cleaning position, HEPA filter layer, activated carbon filter layer, exhaust outlet is equipped at the top of the cleaning position.
Description
Technical field
The invention belongs to the mechanism and preparation of biology base degradation technique field more particularly to a kind of biology base degradation courier bag
Method.
Background technology
With economic rapid development, people are to the destruction getting worse of environment, especially nondegradable plastics, by people
Arbitrarily throw out without care after, due to being not easy, by soil microbial degradation, to be deposited in soil for a long time, caused to ecological environment serious
Pollution.Disposable tableware, Phthalates and agricultural mulching etc. are difficult to be recycled, traditional processing method with
Based on burning and burying.Burning will produce a large amount of pernicious gas, pollute environment；It buries in the then polymer short time therein not
It can be decomposed by the microorganisms, also pollute environment.The residual plastic foil abandoned is present in soil, hinders the development of crop root system and to water
Divide, the absorption of nutrient, so that the gas permeability of soil is reduced, lead to crop production reduction；After action eats the residual plastic foil abandoned, intestines can be caused
Obstruction and it is dead；The synthetic netting and fishline being lost in ocean or discard in ocean cause phase to marine organisms
When harm, therefore advocate green consumption with reinforcement environmental protection it is imperative.
In order to reduce white pollution, preserving the ecological environment, people start to study degredation plastic, and the of research
Generation degradative plastics is degradation plastic, and this degradation plastic is added to dropping for sub-fraction on the basis of original raw material
Solution masterbatch or starch-based initial material, major part cannot degrade, and also be unfavorable for the recycling and reconstruction of plastics；The of research
Two generation degradative plastics are biology base controllable full-degradable plastics, and using resourceful, reproducible biomass as raw material, degradation process is green
Color, cleaning also help the benign cycle in structure soil and environmental system, are to alleviate oil crisis, eliminate having for white pollution
Effect approach,
Currently, the method for manufacture biology base controllable full-degradable plastics predominantly first dries raw material, then filled by stirring
Stirring is set, is then granulated by comminutor, will produce in raw material whipping process finally by coextrusion film blowing machine blowfilm shaping
A large amount of dust is directly discharged to can cause environmental pollution in air.
Invention content
The present invention provides a kind of mechanism and preparation method of biology base degradation courier bag, to solve to carry in above-mentioned background technology
The problem of dust gone out pollutes the environment.
Technical problem solved by the invention is realized using following technical scheme：
The mechanism and preparation method of a kind of biology base degradation courier bag, including agitating device, dust collecting, comminutor, altogether
Extrusion film machine, the agitating device are connect with dust collecting, and the dust collecting is connect with comminutor, the granulation
Machine is connect with coextrusion film blowing machine；
The agitating device includes stirring casing, and the stirring cabinet top is equipped with stirring cover, and the blender side of covering is set
There are stirring motor, the blender to cover equipped with straight slot, the stirring motor bottom is equipped with rotary shaft, and the rotary shaft passes through logical
Slot is located in stirring casing, and the rotary shaft side is equipped with stirring rod；
The dust collecting includes collecting bin, and collection conduit, the collection conduit other end are equipped at the top of the collecting bin
It is arranged in the top of agitating device, the collecting bin and is equipped with spray piping, the spray piping bottom is equipped with spray head, described
Collecting bin bottom is connected with recycling bins, and the collecting bin side is connected with purge pipe, and the purge pipe is connected with cleaning position,
It is equipped with prefilter layer, HEPA filter layer, activated carbon filter layer in the cleaning position, exhaust outlet is equipped at the top of the cleaning position；
The comminutor includes conveying storehouse, cutting storehouse, output storehouse, and the top in the conveying storehouse is equipped with feed inlet, the conveying storehouse
Interior to be equipped with conveying screw rod, described conveying screw rod one end is connected with feeder motor, and the conveying storehouse other end is connect with cutting storehouse, institute
It states and is equipped with cutter in cutting storehouse, described cutter one end is connected with cutting motor, and the bottom in the cutting storehouse is connect with output storehouse, institute
It states in output storehouse and is equipped with output screw, the output screw is connected with output motor；
The coextrusion film blowing machine includes outer die body, is equipped with core model in the external mold body, and the outer die body includes first layer external mold, the
Two layers of external mold, third layer external mold, bed die, between the first layer external mold, second layer external mold be equipped with first layer runner, described second
It is equipped with second layer runner between layer external mold, third layer external mold, third layer runner, institute are equipped between the third layer external mold, bed die
It states and is equipped with mouth mold above first layer external mold, top layer runner, the top layer runner, the first laminar flow are equipped between the mouth mold and core model
Road, second layer runner, third layer runner communicate.
The HEPA filter layer is between prefilter layer, activated carbon filter layer.
Further include raw material, the raw material includes that polylactic acid, poly terephthalic acid-tetramethylene adipate, reactivity help
Agent, antioxidant, lubricant, ultraviolet absorber and light stabilizer.
Beneficial effects of the present invention are：
1 the technical program can effectively receive the dust generated in whipping process by the setting of dust collecting
Collection and purification, implementation result are ideal.
The setting of 2 spray pipings can dissolve the dust in gas, and then recycling can utilize again, economize on resources.
The setting of 3 cleaning positions can remove the harmful substance in air, to which free of contamination gas is discharged into air
In.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of agitating device of the present invention, dust collecting；
Fig. 3 is the structural schematic diagram of comminutor of the present invention；
Fig. 4 is the structural schematic diagram of coextrusion film blowing machine of the present invention.In figure：1- agitating devices, 2- dust collectings, 3- are granulated
Machine, 4- coextrusion film blowing machines, 5- stirring casings, 6- stirring covers, 7- stirring motors, 8- rotary shafts, 9- stirring rods, 10- convey storehouse,
11- cuts storehouse, and 12- exports storehouse, 13- feed inlets, 14- conveying screw rods, 15- feeder motors, 16- cutters, 17- cutting motors, 18-
Output screw, 19- output motors, the outer die bodys of 20-, 21- core models, 22- first layer external molds, 23- second layer external molds, 24- third layer
External mold, 25- bed dies, 26- first layer runners, 27- second layer runners, 28- third layer runners, 29- mouth molds, 30- top layer runners,
31- collection conduits, 32- collecting bins, 33- spray pipings, 34- spray heads, 35- recycling bins, 36- purge pipes, 37- cleaning positions,
38- prefilter layers, 39-HEPA filter layers, 40- activated carbon filter layers, 41- exhaust outlets.
Specific implementation mode
A kind of mechanism and preparation method of biology base degradation courier bag, including raw material, agitating device 1, dust collecting
2, comminutor 3, coextrusion film blowing machine 4, agitating device 1 are connect with dust collecting 2, and dust collecting 2 connects with comminutor 3
It connects, comminutor 3 is connect with coextrusion film blowing machine 4；
The raw material include polylactic acid, poly terephthalic acid-tetramethylene adipate, reactive assistant, antioxidant, lubricant,
Ultraviolet absorber and light stabilizer；
The reactive assistant is dibenzoyl peroxide, cumyl peroxide, peroxidating 2- ethylhexyl acid uncle penta
Ester, peroxidating 2- ethylhexyls tert-butyl acrylate, peroxidating acetic acid tert-pentyl ester, peroxide acid tert-amyl acetate, two uncle of peroxidating
Butyl or 2, any one in bis- hexane of 5- dimethyl -2,5-.
The antioxidant is Hinered phenols antioxidant 1010, antioxidant 1076, antioxidant BHT, phosphorous acid esters antioxygen
Any one in agent 168, antioxidant 626, antioxidant phenyl-phosphite.
The lubricant is N, and N- ethylene bis stearamides, oleamide, zinc stearate, calcium stearate or epoxy are big
Any one in soya-bean oil.
The ultraviolet absorber is any one in UV531, UV320, UV326 or UV327.
The light stabilizer be light stabilizer 622, light stabilizer 770, light stabilizer 783, light stabilizer 791,
Any one in light stabilizer 944 or light stabilizer 3853.
Agitating device 1 includes stirring casing 5, and 5 top of stirring casing is equipped with stirring cover 6, and 6 top of stirring cover, which is equipped with, to be stirred
Motor 7 is mixed, stirring cover 6 is equipped with straight slot, and 7 bottom of stirring motor is equipped with rotary shaft 8, and rotary shaft 8 passes through straight slot to be located at stirring
In casing 5,8 side of rotary shaft is equipped with stirring rod 9.
Dust collecting 2 includes collecting bin 32, and 32 top of collecting bin is equipped with collection conduit 31,31 other end of collection conduit
It is arranged in the top of agitating device 1, collecting bin 32 and is equipped with spray piping 33,33 bottom of spray piping is equipped with spray head 34, receives
Collection 32 bottom of storehouse is connected with recycling bins 35, and 32 side of collecting bin is connected with purge pipe 36, and purge pipe 36 is connected with cleaning position
37, cleaning position 37 is interior to be equipped with prefilter layer 38, HEPA filter layer 39, activated carbon filter layer 40, before HEPA filter layer 39 is located at
It sets between filter layer 38, activated carbon filter layer 40,37 top of cleaning position is equipped with exhaust outlet 41.
Comminutor 3 includes conveying storehouse 10, cutting storehouse 11, output storehouse 12, and the top in conveying storehouse 10 is equipped with feed inlet 13, conveying
Conveying screw rod 14 is equipped in storehouse 10,14 one end of conveying screw rod is connected with feeder motor 15, conveying 10 other end of storehouse and cutting storehouse 11
Connection cuts and is equipped with cutter 16 in storehouse 11, and 16 one end of cutter is connected with cutting motor 17, cuts bottom and the output storehouse 12 in storehouse 11
Connection, output are equipped with output screw 18 in storehouse 12, and output screw 18 is connected with output motor 19.
Coextrusion film blowing machine 4 includes outer die body 20, and core model 21 is equipped in outer die body 20, and outer die body 20 includes first layer external mold
22, second layer external mold 23, third layer external mold 24, bed die 25 are equipped with the first laminar flow between first layer external mold 22, second layer external mold 23
Road 26 is equipped with second layer runner 27, is set between third layer external mold 24, bed die 25 between second layer external mold 23, third layer external mold 24
There are third layer runner 28,22 top of first layer external mold to be equipped with mouth mold 29, top layer runner 30, top are equipped between mouth mold 29 and core model 21
Laminar flow road 30, first layer runner 26, second layer runner 27, third layer runner 28 communicate.
Implementation principle：
Biology base controllable full-degradable plastics can be divided into starch, polyesters and other classes, the technical program according to raw material point
For polyesters, polylactic acid（PLA）Also referred to as polylactide, belongs to polyester family, and structural formula is（-O-CHCH3-CO-)n.
The most important two kinds of polymerizations of polylactic acid are direct polymerization method and ring-opening polymerisation method.Direct polymerization method is typical
Polycondensation reaction.Using the activity of lactic acid, by heating, dehydration condensation occurs between lactic acid molecules, obtains polylactic acid.It is directly poly-
Legal simple production process, production cost is low, is not required to the intermediate of reaction to be separated.But the molecular weight of polylactic acid is relatively low, molecule
Measure distributed more widely, poor performance.Lactide ring-opening polymerisation method produces polylactic acid using two-step method.It is cyclized and is made by acid by dehydrating lactic first
Then polylactic acid is made by refined lactide ring-opening polymerisation again in lactide.Polylactic acid physical force made from ring-opening polymerisation method
Better performances are learned, the production cost of the method is higher than direct polymerization method.
The degradation of polylactic acid is divided into simple hydrolysis（Acid-base catalysis）It degrades with enzymatic hydrolysis.The principal degradation side of polylactic acid
Formula is bulk erosion.Hydrophobic polymer passes through labile bond on main chain（C-O keys）Hydrolysis become low relative molecular weight, water
Then soluble molecule and monomer are further degraded to water and carbon dioxide under the action of enzyme.The degradation of polylactic acid right and wrong first
The hydrolysis of crystalline region, followed by crystalline region.Hydrolysis can because carboxyl there are due to accelerate.There are autocatalysis inside polylactic acid,
Inside degradation speed specific surface it is fast.When degrading beginning, the hydrolysis of ester bond is isotropic in matrix.In degradation process
In, end carboxyl is to having hydrolyzed catalytic action.With the progress of degradation, end carboxyl amount increases, and degradation rate is accelerated.
Implementation process：
First by raw material according to configuring by weight：Including 15-60 parts of polylactic acid, poly terephthalic acid-adipic acid fourth
40-85 parts of diol ester, 0.1-0.5 parts of reactive assistant, 0.1-0.5 parts of antioxidant, 0.1-0.5 parts of lubricant, ultraviolet suction
Receive 0.1-0.5 parts of 0.1-0.5 parts of agent and light stabilizer.
Then raw material is dried, puts agitating device after drying into and is stirred, the time is 3-5 hours, is stirred evenly
After be put into comminutor and be granulated, obtain degradative plastics particle, head temperature is 110-150 DEG C, then by degradative plastics particle
It is put into coextrusion film blowing machine and carries out blown film, wherein the temperature of blown film is 150 DEG C -200 DEG C.
Experiment process：
Water flea acute toxicity test
1. experiment is summarized
Water flea acute toxicity test biology base compost and standard compost compare experiment, and detection contains biology base degradative plastics
Toxic effect of the degradation compost to water flea.Biology base degradative plastics usually contains various metabolites, portion after polyester is degraded
Divide undegraded complete product and inorganic matter.Degrade compost toxicity can with water flea degradation compost and standard compost in surviving
Rate is weighed.
2. test specification
This experiment uses the OECD chemicals test rules #202 " water flea class biological activity test and reproduction test " of OECD.
3. test procedure
（1）Compost eluate 1 part of compost and 4 parts of water, through 60oC is heated 2 hours, is made.The coefficient of dilution of this liquid is set to
4。
（2）Diluted concentration determines that the experiment coefficient of dilution is 4,8,16,32,64 dilutions.
（3）It is packed into 20ml diluent liquids in test tube, is put into 5 water fleas, each tests 4 repetitions.
（4）Test temperature is 18 ~ 22oC.It is protected from light.
（5）The survival rate of water flea is detected after 24 hours.If water flea is in heaven or recumbency bottom, do not lived in 10 second observation period
It is dynamic, it is also considered as in heaven.
（6）If in the fresh water of standard, the death rate of water flea is more than 10%, and experiment is invalid.It need to test again.
Diluted concentration determines that the result of trial test is：
Standard fresh water：100% standard compost 4 of survival rate：Survival rate 30%
Standard compost 8：70% standard compost 16 of survival rate：Survival rate 100%
Standard compost 32：100% standard compost 64 of survival rate：Survival rate 100%
Experiment diluted concentration is selected as 4 ~ 20.Such as 4,8,12,16,20, experiment carries out 24 hours.It is shown respectively according to test result
Kind degradation compost dilution does not have significant adverse effect to the survival rate of water flea.When the degradation compost that diluted concentration is 4X and 8X
The survival rate of dilution, water flea is more than corresponding standard compost dilution.
The embodiments of the present invention have been described in detail above, but content is only the preferred embodiment of the present invention,
Should not be construed as limiting the present invention practical range, any changes and modifications in accordance with the scope of the present application,
It should all still fall within the scope of the patent of the present invention.
Claims (3)
1. a kind of mechanism and preparation method of biology base degradation courier bag, it is characterised in that：
Including agitating device, dust collecting, comminutor, coextrusion film blowing machine, the agitating device connects with dust collecting
It connects, the dust collecting is connect with comminutor, and the comminutor is connect with coextrusion film blowing machine；
The agitating device includes stirring casing, and the stirring cabinet top is equipped with stirring cover, and the blender side of covering is set
There are stirring motor, the blender to cover equipped with straight slot, the stirring motor bottom is equipped with rotary shaft, and the rotary shaft passes through logical
Slot is located in stirring casing, and the rotary shaft side is equipped with stirring rod；
The dust collecting includes collecting bin, and collection conduit, the collection conduit other end are equipped at the top of the collecting bin
It is arranged in the top of agitating device, the collecting bin and is equipped with spray piping, the spray piping bottom is equipped with spray head, described
Collecting bin bottom is connected with recycling bins, and the collecting bin side is connected with purge pipe, and the purge pipe is connected with cleaning position,
It is equipped with prefilter layer, HEPA filter layer, activated carbon filter layer in the cleaning position, exhaust outlet is equipped at the top of the cleaning position；
The comminutor includes conveying storehouse, cutting storehouse, output storehouse, and the top in the conveying storehouse is equipped with feed inlet, the conveying storehouse
Interior to be equipped with conveying screw rod, described conveying screw rod one end is connected with feeder motor, and the conveying storehouse other end is connect with cutting storehouse, institute
It states and is equipped with cutter in cutting storehouse, described cutter one end is connected with cutting motor, and the bottom in the cutting storehouse is connect with output storehouse, institute
It states in output storehouse and is equipped with output screw, the output screw is connected with output motor；
The coextrusion film blowing machine includes outer die body, is equipped with core model in the external mold body, and the outer die body includes first layer external mold, the
Two layers of external mold, third layer external mold, bed die, between the first layer external mold, second layer external mold be equipped with first layer runner, described second
It is equipped with second layer runner between layer external mold, third layer external mold, third layer runner, institute are equipped between the third layer external mold, bed die
It states and is equipped with mouth mold above first layer external mold, top layer runner, the top layer runner, the first laminar flow are equipped between the mouth mold and core model
Road, second layer runner, third layer runner communicate.
2. the mechanism and preparation method of a kind of biology base degradation courier bag according to claim 1, it is characterised in that：It is described
HEPA filter layer is between prefilter layer, activated carbon filter layer.
3. the mechanism and preparation method of a kind of biology base degradation courier bag according to claim 1, it is characterised in that：Also wrap
Raw material is included, the raw material includes polylactic acid, poly terephthalic acid-tetramethylene adipate, reactive assistant, antioxidant, profit
Lubrication prescription, ultraviolet absorber and light stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114796.1A CN108437499A (en) | 2018-02-06 | 2018-02-06 | A kind of mechanism and preparation method of biology base degradation courier bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114796.1A CN108437499A (en) | 2018-02-06 | 2018-02-06 | A kind of mechanism and preparation method of biology base degradation courier bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108437499A true CN108437499A (en) | 2018-08-24 |
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ID=63191709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810114796.1A Withdrawn CN108437499A (en) | 2018-02-06 | 2018-02-06 | A kind of mechanism and preparation method of biology base degradation courier bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108437499A (en) |
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2018
- 2018-02-06 CN CN201810114796.1A patent/CN108437499A/en not_active Withdrawn
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Application publication date: 20180824 |