CN108312485A - A kind of mechanism and preparation method of biology base degradation cotton planting mulch - Google Patents
A kind of mechanism and preparation method of biology base degradation cotton planting mulch Download PDFInfo
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- CN108312485A CN108312485A CN201810114685.0A CN201810114685A CN108312485A CN 108312485 A CN108312485 A CN 108312485A CN 201810114685 A CN201810114685 A CN 201810114685A CN 108312485 A CN108312485 A CN 108312485A
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- China
- Prior art keywords
- staving
- charging basket
- raw material
- shaped bar
- speed mixer
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/22—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention is the mechanism and preparation method of a kind of biology base degradation cotton planting mulch, it is characterised in that：Including raw material, high-speed mixer, separation detection machine, comminutor, inflation film manufacturing machine, the raw material includes 5 25% polylactic acid, 43 48% poly terephthalic acid succinic acid-butanediol esters etc.；The charging basket of weighing includes holder, staving etc., U-shaped bar is installed in the staving, hairbrush is installed on the U-shaped bar, the U-shaped bar bottom surface is connect with rotating handle one end, the rotating handle other end is located on the outside of staving, the staving outer side bottom surface is equipped with bearing, and the rotating handle passes through bearing.The technical program weighs and is mounted with hairbrush in charging basket, when the raw material weighed in charging basket is poured into high-speed mixer, hairbrush can be made to sweep the raw material powder weighed on charging basket inner wall by rotating rotating handle and dropped into high-speed mixer.
Description
Technical field
The invention belongs to the mechanism and system of degrade technical field of membrane more particularly to a kind of biology base degradation cotton planting mulch
Preparation 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 complete biodegradable plastics, utilize Microbe synthesis material, natural macromolecular material and synthesis macromolecule
The technologies such as material are manufactured.
Currently, the method for traditional manufacture biodegradable plastic is predominantly first stirred raw material by high-speed mixer
It is even, then be granulated by comminutor, most afterwards through inflation film manufacturing machine blowfilm shaping.But due to some raw material microparticulates, some are former
Material is powdered, therefore there are the bad phenomenons of mixed effect, in addition, after dusty raw materials are weighed, can be sticked to material of weighing
A bucket inner wall part, this part will not pour into high-speed mixer, and error and raw material occurs in the weight ratio for causing raw material
Waste.
Invention content
The present invention provides a kind of mechanism and preparation method of biology base degradation cotton planting mulch, it is characterised in that：
Including raw material, plastic grinder, weigher, charging basket of weighing, high-speed mixer, comminutor, inflation film manufacturing machine, the plastics milling
Machine is connect with weigher, and charging basket of weighing is placed on the weigher, and the charging basket of weighing is connect with high-speed mixer, the height
Fast mixing machine is connect with comminutor, and the comminutor is connect with inflation film manufacturing machine；
The charging basket of weighing includes holder, staving, U-shaped bar, hairbrush, and staving is equipped on the holder, is equipped on the outside of staving
The rib of prismatoid, the prismatoid is rounding corner structure, and fixed block is equipped on the outside of the staving, and the fixed block is cut with scissors with baffle
Link, the staving madial wall are equipped with protrusion, U-shaped bar are equipped in the staving, is equipped with hairbrush on the U-shaped bar, institute
It states U-shaped bar bottom surface to connect with rotating handle one end, the rotating handle other end is located on the outside of staving, the staving outer side bottom surface
Bearing is installed, the rotating handle passes through bearing；
Skewback is provided on the outside of the high-speed mixer, the skewback is equipped with dovetail groove.
Rubber pad is installed in the dovetail groove.
Handle is installed on the outside of the staving.
The raw material includes polylactic acid, poly terephthalic acid-tetramethylene adipate, reactive assistant, antioxidant, profit
Lubrication prescription, ultraviolet absorber and light stabilizer.
Beneficial effects of the present invention are：
1 the technical program increases plastic grinder, and can clay into power feed particulate material shape so that later stage various raw materials
The effect mixed in high-speed mixer is more preferable.
2 the technical program weigh and are mounted with hairbrush in charging basket, and the raw material weighed in charging basket is poured into high-speed mixer
When, hairbrush can be made to sweep the raw material powder weighed on charging basket inner wall by rotation rotating handle and drop into high-speed mixer, keep away
Exempt from the waste of the error for raw material weight ratio occur and raw material.
The protrusion of 3 inner wall of barrel can generate the power stirred, the original that will be glued on hairbrush when hairbrush is rotated to hairbrush
Feed powder end pulls out.
4 put prismatoid in dovetail groove into, can be held in the when of the falling raw material charging basket that will weigh, and do not have to again artificial laborious, rubber
The design of rubber cushion can prevent from generating friction texturizing between prismatoid and dovetail groove.
5 baffles play the role of blocking raw material powder, prevent raw material powder from disorderly flying when being toppled over.
Description of the drawings
Fig. 1 is flow diagram of the present invention；
Fig. 2 is that the present invention weighs charging basket side sectional view；
Fig. 3 is the side schematic view that charging basket of the invention of weighing is mounted on high-speed mixer；
Fig. 4 is baffle vertical view of the present invention；
In figure：Plastic grinder -1, weigher -2, charging basket -3 of weighing, holder -3-1, staving -3-2, protrusion -3-3, U-shaped bar -3-
4
Hairbrush -3-5, rotating handle -3-6, bearing -3-7, prismatoid -3-8, fixed block -3-9, baffle -3-10, handle -3-11
High-speed mixer -4, skewback -4-1, dovetail groove -4-2, rubber pad -4-3, comminutor -5, inflation film manufacturing machine -6.
Specific implementation mode
Embodiment 1
A kind of mechanism and preparation method of biology base degradation cotton planting mulch, including raw material, plastic grinder, weigher, title
Heavy burder bucket, high-speed mixer, comminutor, inflation film manufacturing machine, plastic grinder 1 are connect with weigher, and material of weighing is placed on weigher 2
Bucket 3, charging basket 3 of weighing is connect with high-speed mixer, and high-speed mixer 4 is connect with comminutor 5, and comminutor 5 is connect with inflation film manufacturing machine 6；
Raw material includes 5-25% polylactic acid, 43-48% poly terephthalic acids -co- succinic acid-butanediol ester, the poly- 3- of 15-30%
Butyric ester 4- butyric esters, 0-30% tapiocas, 1-2% biology bases couplant, 0.5-2% response type increase-volumes
Agent, 0.5-1% biology base slipping agents；
Charging basket of weighing includes holder 3-1, staving 3-2, U-shaped bar 3-4, hairbrush 3-5, and staving is rack-mount, prismatoid installation
On the outside of staving, the rib of prismatoid 3-8 is rounding corner structure, and fixed block 3-9 is mounted on the outside of staving, fixed block and baffle hinge
It connects, staving madial wall is equipped with raised 3-3, and U-shaped bar is mounted in staving, and hairbrush is mounted on U-shaped bar, U-shaped bar bottom surface and rotation
The connection of the one end handle 3-6 is changed hands, the rotating handle other end is located on the outside of staving, and staving outer side bottom surface is equipped with bearing 3-7, rotates hand
Handle passes through bearing, skewback to be mounted on high-speed mixer 4, and skewback 4-1 is equipped with dovetail groove 4-2, and rubber pad 4-3 is mounted on trapezoidal
In slot.
Embodiment 2
When preparation, first puts particulate material into shape of claying into power in plastic grinder 1, then put powder raw material into charging basket of weighing
In 3, weigher 2 weighs to raw material, and the charging basket that then will weigh, which lifts, to be placed on skewback 4-1, while prismatoid 3-8 is placed on
In dovetail groove 4-2, flapper is simultaneously kept off above the bung hole for charging basket of weighing, after raw material is poured into high-speed mixer 4, rotation rotation
Handle 3-6, the powder on staving 3-2 inner walls is swept in hairbrush 3-5 rotations to be fallen, meanwhile, raised 3-3 produces hairbrush when hairbrush rotates
The raw power stirred, the raw material powder glued on hairbrush is pulled out, is thus toppled over raw material powder totally, similarly to other
The raw material of type, which is weighed, topples over, and then starts high-speed mixer 4, is mixed to various raw materials, then mixed raw material is sent
Enter comminutor and be granulated 5, finally makes inflation film manufacturing machine 6 that film is made in raw material.
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.
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 (4)
1. a kind of mechanism and preparation method of biology base degradation cotton planting mulch, it is characterised in that：
Including raw material, plastic grinder, weigher, charging basket of weighing, high-speed mixer, comminutor, inflation film manufacturing machine, the plastics milling
Machine is connect with weigher, and charging basket of weighing is placed on the weigher, and the charging basket of weighing is connect with high-speed mixer, the height
Fast mixing machine is connect with comminutor, and the comminutor is connect with inflation film manufacturing machine；
The charging basket of weighing includes holder, staving, U-shaped bar, hairbrush, and staving is equipped on the holder, is equipped on the outside of staving
The rib of prismatoid, the prismatoid is rounding corner structure, and fixed block is equipped on the outside of the staving, and the fixed block is cut with scissors with baffle
Link, the staving madial wall are equipped with protrusion, U-shaped bar are equipped in the staving, is equipped with hairbrush on the U-shaped bar, institute
It states U-shaped bar bottom surface to connect with rotating handle one end, the rotating handle other end is located on the outside of staving, the staving outer side bottom surface
Bearing is installed, the rotating handle passes through bearing；
Skewback is provided on the outside of the high-speed mixer, the skewback is equipped with dovetail groove.
2. the mechanism and preparation method of a kind of biology base degradation cotton planting mulch according to claim 1, feature exist
In：Rubber pad is installed in the dovetail groove.
3. the mechanism and preparation method of a kind of biology base degradation cotton planting mulch according to claim 1, feature exist
In：Handle is installed on the outside of the staving.
4. the mechanism and preparation method of a kind of biology base degradation cotton planting mulch according to claim 1, feature exist
In：The raw material include polylactic acid, poly terephthalic acid-tetramethylene adipate, reactive assistant, antioxidant, lubricant,
Ultraviolet absorber and light stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114685.0A CN108312485A (en) | 2018-02-06 | 2018-02-06 | A kind of mechanism and preparation method of biology base degradation cotton planting mulch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114685.0A CN108312485A (en) | 2018-02-06 | 2018-02-06 | A kind of mechanism and preparation method of biology base degradation cotton planting mulch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108312485A true CN108312485A (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810114685.0A Pending CN108312485A (en) | 2018-02-06 | 2018-02-06 | A kind of mechanism and preparation method of biology base degradation cotton planting mulch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108312485A (en) |
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2018
- 2018-02-06 CN CN201810114685.0A patent/CN108312485A/en active Pending
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| PB01 | Publication | ||
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Application publication date: 20180724 |