CN104774362B - A kind of non-degradable copper ion is sustained root drip irrigation pipe and preparation method thereof of dispelling - Google Patents
A kind of non-degradable copper ion is sustained root drip irrigation pipe and preparation method thereof of dispelling Download PDFInfo
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- CN104774362B CN104774362B CN201510166568.5A CN201510166568A CN104774362B CN 104774362 B CN104774362 B CN 104774362B CN 201510166568 A CN201510166568 A CN 201510166568A CN 104774362 B CN104774362 B CN 104774362B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil
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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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
Root drip irrigation pipe and preparation method thereof of dispelling is sustained the invention discloses a kind of non-degradable copper ion, belongs to agricultural water conservation equipment technical field.The preparation of drip irrigation pipe of the invention is divided into three key steps：1st, the preparation of functional master batch；2nd, drip head injection moulding；3rd, the embedded shaping of drip irrigation pipe.Wherein, water dropper component includes 20~50% functional master batch, 50~80% high density polyethylene (HDPE)s, part color masterbatch and antiaging agent；Described functional master batch component is 10~20% high density polyethylene (HDPE)s, 30~80% low density polyethylene (LDPE)s, 6~40% anhydrous cupric sulfates, 0.5~5% protective agent, 1~5% sustained release agent.Non-degradable copper ion of the present invention is sustained root drip irrigation pipe of dispelling and employs copper ion slow release method, copper sulphate inside drip head can slowly discharge, rate of release is by sustained release agent control, burst size can be according to the tolerance of plant and irrigation region soil copper ion concentration adjustment, it is environment-friendly, can long-term use.
Description
Technical field
The invention belongs to agricultural water conservation equipment technical field, more particularly to a kind of non-degradable copper ion is sustained root drip irrigation pipe of dispelling
And preparation method thereof.
Background technology
Underground drip irrigation technique abroad be used widely by the sixth of the twelve Earthly Branches, and industrial crops are most commonly seen in service object, focus mostly on
On fruit tree, vegetables and other Peak output crops；Also have in field crop and use on a small quantity, based on cotton and corn crop.Due to
The hydrophily of crop root, root system is likely to cause douche aperture and blocks in the vigorous development of hollow billet water dropper surrounding.
The Root penetration preventing dropper technology of current foreign applications comparative maturity is that the Root penetration preventing drip irrigation of Rain Bird Corp of the U.S. is filled
Water system, they propose a whole set of comprehensive solution, for reduce and relative constancy flow rate by irrigation water from confession
Ying Guanzhong is transported to emitter outlet.Concrete measure is broadly divided into：The 1st, the locellus of douche first is set, when hydraulic pressure is higher than predetermined value
When, check valve is opened and enables that fluid flows through the first Room, by pressure relief flow passage, and by emitter outlet.2nd, is used
Two entrances provide compensation for the differential water pressures in supply pipe, so that output flowing keeps the flow rate of relative constancy.Water enters into second
Mouthful and by flexible membrane press to water metering surface and provide to export circulating water pressure correlation control.3rd, copper sheet is placed in and is poured water
Device near exit is invaded with the root for preventing plant.
As can be seen that the main Root penetration preventing measure of white partridge company of the U.S. is that copper sheet is positioned near delivery port, by copper
The Cu into microenvironment is discharged during autoxidation in wet condition2+Produced copper stress effect avoids root from invading
Enter.Although this technology can be prevented effectively from root and invade generation, its shortcoming is fairly obvious, and reason is：1st, copper is a kind of plant
Required necessary trace element, certain density copper ion can promote plant root growth.And copper sheet release copper ion need through
Peroxidating process, chemical reaction rate is subject to wet environment and soil oxygen content to restrict, it is impossible to quantitatively discharge copper ion, and too low
Content of copper ion promote plant root growth, ultimately result in Root penetration preventing failure；2nd, consider from drip irrigation pipe manufacturing enterprise itself,
Need to carry out fairly large technological transformation and upgrading in the built-in Root penetration preventing copper sheet of drip irrigation pipe, this and China's agripast production are looked forward to
The basic condition of the low profit of industry is disagreed, and greatly reducing enterprise carries out the input enthusiasm of correlation technique research and development；3rd, from environmentally friendly angle
From the point of view of degree, long-term buried copper sheet very likely causes environmental pollution.China is that a heavy metal pollution of soil is tighter
The country of weight, it is any to carry out strict Environmental capacity for a large amount of materials for using among soil, so can just make existing
There is land resource sustainable and healthy development.The copper sheet that white partridge company of the U.S. proposes is dispelled the long-term shadow that root method does not consider to soil environment
Ring, substantial amounts of copper sheet is buried to soil, and its influence to environment is entirely a kind of runaway condition, and produced consequence is nothing
What method was estimated.
China introduces drip irrigation equipment so far from 1974 from Mexico, and the application of ground drip irrigation technology and equipment development have been obtained
Considerable progress.But the Preliminary Applications of underground drip irrigation technique then start from the initial stage eighties, are mainly used in fruit tree crop.In recent years,
These technologies have been achieved with incremental advances, but uniform due to being made system water supply during douche is applied using artificial bundle hole mode
Property poor, apopore do not solved very well the problems such as easily block, have influence on the normal of underground drip irrigation system and use and run.
Irrigation system with labyrinth emitter has obtained market accreditation, and is quickly promoted, and crop root system invasion is system
The about main cause of this technology.
The method that the country's this Crop Root of solution is invaded mainly has two kinds.A kind of is the Root penetration preventing drip irrigation pipe of domestic enterprise's exploitation
Special Eradicates roots agent, its main method is to prepare PE masterbatch by adding copper powder, makes it have anti-root intrusion blocking, antifungi and gathers
Collect the function of blocking.Its basic fundamental thinking is similar with white partridge company of the U.S., is all the mesh that Root penetration preventing is reached by metallic copper
's.This technology has realistic meaning for drip irrigation pipe enterprise of China, but its Root penetration preventing technology still has deficiency, its main cause
It is：Metallic copper inside PE cannot effectively touch hydrone and oxygen in environment, therefore copper ion is difficult release to surrounding
In the middle of environment.Another method is to reach to block water dropper root intrusion by applying trefanocide to underground drip irrigation system
Control purpose.Trefanocide is dinitroaniline herbicide before selective bud, has certain toxicity for higher mammal,
Reported according to National Cancer Institute, trefanocide has prolonged damage effect to rat and mouse multiple internal organs official,
The carcinogenic probability of serious increase.Therefore domestic scholars are still disagreed for trefanocide safety in utilization.Trefanocide has shorter
Half-life period, be spaced shorter administration period it is possible to prevente effectively from the substantial amounts of trefanocide of plant absorption, and drip irrigation system is a kind of
Long-term administration liquid manure facility, this may result in soil environment of the trefanocide always present in institute's drip irrigation, it is impossible to effectively decompose to
Low concentration, so as to cause serious trefanocide to pollute.Therefore drip irrigation system is not appropriate for for a long time, largely using trefanocide.
The content of the invention
To overcome the shortcoming and deficiency of prior art, primary and foremost purpose of the invention is to provide a kind of non-degradable copper ion to delay
Release root drip irrigation pipe of dispelling.
Another object of the present invention is to provide the preparation method that above-mentioned non-degradable copper ion sustained release dispels root drip irrigation pipe.
The purpose of the present invention is achieved through the following technical solutions：A kind of non-degradable copper ion is sustained root drip irrigation pipe of dispelling, including
The component of following percentage composition：
Functional master batch 20~50%；
High density polyethylene (HDPE) 50~80%；
Described functional master batch, the component comprising following weight/mass percentage composition：
Described non-degradable copper ion sustained release dispels root drip irrigation pipe can also be comprising color masterbatch and antiaging agent.
Impurity content≤0.5% of described anhydrous cupric sulfate, water content≤0.1%, granularity >=200 mesh.
Described protective agent is organic acid or acid anhydrides containing carboxylic group；
Described protective agent is preferably one or more of acetic anhydride, maleic anhydride, butanedioic acid and ascorbic acid.The protection
Agent scope is not limited to above-mentioned different materials, and generic features contain carboxyl group for the material.
Described sustained release agent is used for the sustained release of copper ion, with certain water-absorption characteristics, dividing typically with hydrophilic group
Son construction；Including hydroxypropyl cellulose, sodium hydroxyethlcellulose, CMS and it is kaolinic one or more.
Above-mentioned non-degradable copper ion sustained release is dispelled the preparation method of root drip irrigation pipe, including functional master batch preparation, drip head
Injection moulding and drip irrigation pipe three steps of embedded shaping, comprise the following steps that：
1) preparation of functional master batch, each component is according to the proportioning stirring mixing of following mass percent：10~20% high density
Polyethylene, 30~80% low density polyethylene (LDPE)s, 6~40% anhydrous cupric sulfates, 0.5~5% protective agent, 1~5% sustained release agent；Respectively
Component is needed by drying and processing before mixing；Well mixed component is prepared into functional master batch；
2) drip head injection moulding, drip head component include 20~50% functional master batch, 50~80% high density polyethylene (HDPE)s,
Various fillers are poured into blender and mixed by color masterbatch and antiaging agent, and drip head is obtained by Shooting Technique；
3) the embedded shaping of drip irrigation pipe, the drip head for preparing is by the way that selecting and recommending device is continuously welded on plastic pipe inwall automatically
Drip irrigation pipe is completed through cooling to be molded.
Step 1) described in drying and processing be 75~90 DEG C dry 24h it is standby, the resting period is no more than after drying
24h。
Step 1) described in be prepared as using double screw extruder extrude prepare, extrusion temperature control 165~185
℃。
Step 2 in the present invention) the preparation of drip head injection moulding must include step 1) preparation technology of functional master batch,
Can not be by the various composition mixed once.
Step 3) described in welding when blank temperature control at 190~200 DEG C.
The present invention is impacted with the copper-bath of various concentrations to the chromosome of the root-tip cells of plant, main table
Present somatoblast occurs in that chromosome segment and chromosome bridge, and this explanation copper sulphate causes structural change to DNA, produces
Toxic and side effect is given birth to.Due to this more strong biotic effect of copper sulphate, the growth of crop root produces obvious suppression
Effect processed.Be added to the copper sulphate of certain mass fraction among plastics water dropper by blending technology by the present invention, is obtained having and is prevented
Root invades the drip irrigation pipe of function.When in the embedding soil of drip irrigation pipe, the copper sulphate in water dropper can be released slowly to the water between soil
In the middle of solution, soil has the sulfuric acid copper ion solution of high concentration, and local environment stress effect is formed around drip irrigation pipe.As
The growth of the thing tip of a root is interfered when extending to local environment effect region, produces change XOR to stop growing, and root is avoided so as to reach
The effect invaded.
The present invention has the following advantages and effect relative to prior art：
Technical meaning of the invention is that, with the agrotechnical development of China, drip irrigation technique is gradually ripe, but root is invaded
Problem but hinders underground drip irrigation technique promotion and application.Existing market instead of original fluorine serial herbicide Root penetration preventing side
Method, and use metal copper shield water dropper, although this technology effectively prevent crop root system invade drip irrigation pipe, but still without
Method controls copper ion rate of release, easily causes crops and soil metallic copper exceeded, is unfavorable for long-term lasting application.The present invention
Described non-degradable copper ion is sustained root drip irrigation pipe of dispelling and employs copper ion slow release method, it is characterized in that the sulfuric acid inside drip head
Copper can slowly discharge, and, by sustained release agent control, burst size can be according to the tolerance of plant and irrigation region soil for rate of release
Earth copper ion concentration is adjusted, environment-friendly, can long-term use.
Brief description of the drawings
Fig. 1 is taken root compares figure for paddy rice various concentrations copper sulphate nutrient solution, wherein from left to right, copper sulphate nutrient solution it is dense
Degree is followed successively by 0mg/L, 0.3mg/L, 3mg/L, 15mg/L, 300mg/L.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1：
1) functional master batch proportioning：20% high density polyethylene (HDPE), 30% low density polyethylene (LDPE), 40% anhydrous cupric sulfate, 5% protects
Shield agent, 5% sustained release agent；
2) prepared by functional master batch：Each component is needed by drying and processing 24h before mixing, and drying temperature is 90 DEG C；Mixing
Uniform component is extruded by double screw extruder, and extrusion temperature is controlled at 185 DEG C, and is prepared into particle；
3) drip head injection moulding：50% functional master batch, 50% high density polyethylene (HDPE), part color masterbatch and antiaging agent, will
Various fillers pour into blender mixing, and drip head is obtained by Shooting Technique；
4) drip irrigation pipe shaping：The water dropper for preparing continuously is welded on plastic pipe inwall through cooling by automatic device of selecting and recommending
Drip irrigation pipe shaping is completed, blank temperature is controlled at 190 DEG C.
Embodiment 2：
1) functional master batch proportioning：15% high density polyethylene (HDPE), 47% low density polyethylene (LDPE), 30% anhydrous cupric sulfate, 4% protects
Shield agent, 4% sustained release agent；
2) prepared by functional master batch：Each component is needed by drying and processing 24h before mixing, and drying temperature is 90 DEG C；Mixing
Uniform component is extruded by double screw extruder, and extrusion temperature is controlled at 170 DEG C, and is prepared into particle；
3) drip head injection moulding：50% functional master batch, 50% high density polyethylene (HDPE), part color masterbatch and antiaging agent, will
Various fillers pour into blender mixing, and drip head is obtained by Shooting Technique；
4) drip irrigation pipe shaping：The water dropper for preparing continuously is welded on plastic pipe inwall through cooling by automatic device of selecting and recommending
Drip irrigation pipe shaping is completed, blank temperature is controlled at 190 DEG C.
Embodiment 3：
1) functional master batch proportioning：20% high density polyethylene (HDPE), 54% low density polyethylene (LDPE), 20% anhydrous cupric sulfate, 3% protects
Shield agent, 3% sustained release agent；
2) prepared by functional master batch：Each component is needed by drying and processing 24h before mixing, and drying temperature is 75 DEG C；Mixing
Uniform component is extruded by double screw extruder, and extrusion temperature is controlled at 165 DEG C, and is prepared into particle；
3) drip head injection moulding:50% functional master batch, 50% high density polyethylene (HDPE), part color masterbatch and antiaging agent, will
Various fillers pour into blender mixing, and drip head is obtained by Shooting Technique；
4) drip irrigation pipe shaping：The water dropper for preparing continuously is welded on plastic pipe inwall through cooling by automatic device of selecting and recommending
Drip irrigation pipe shaping is completed, blank temperature is controlled at 195 DEG C.
Embodiment 4：
1) functional master batch proportioning：10% high density polyethylene (HDPE), 78% low density polyethylene (LDPE), 10% anhydrous cupric sulfate, 1% protects
Shield agent, 1% sustained release agent；
2) prepared by functional master batch：Each component is needed by drying and processing 24h before mixing, and drying temperature is 75 DEG C；Mixing
Uniform component is extruded by double screw extruder, and extrusion temperature is controlled at 165 DEG C, and is prepared into particle；
3) drip head injection moulding:50% functional master batch, 50% high density polyethylene (HDPE), part color masterbatch and antiaging agent, will
Various fillers pour into blender mixing, and drip head is obtained by Shooting Technique；
4) drip irrigation pipe shaping：The water dropper for preparing continuously is welded on plastic pipe inwall through cooling by automatic device of selecting and recommending
Drip irrigation pipe shaping is completed, blank temperature is controlled at 195 DEG C.
Embodiment 5：
1) functional master batch proportioning：12% high density polyethylene (HDPE), 80% low density polyethylene (LDPE), 6% anhydrous cupric sulfate, 0.5%
Protective agent, 1.5% sustained release agent；
2) prepared by functional master batch：Each component is needed by drying and processing 24h before mixing, and drying temperature is 75 DEG C；Mixing
Uniform component is extruded by double screw extruder, and extrusion temperature is controlled at 165 DEG C, and is prepared into particle；
3) drip head injection moulding:50% functional master batch, 50% high density polyethylene (HDPE), part color masterbatch and antiaging agent, will
Various fillers pour into blender mixing, and drip head is obtained by Shooting Technique；
4) drip irrigation pipe shaping：The water dropper for preparing continuously is welded on plastic pipe inwall through cooling by automatic device of selecting and recommending
Drip irrigation pipe shaping is completed, blank temperature is controlled at 195 DEG C.
The method of inspection：
1st, antifungi plugging performance：QB/T2591-2003
2nd, long-acting performance：Water dropper is positioned in the middle of 50ml tool plug test tubes, is immersed in distilled water, test tube is covered tightly and put
It is placed in incubator static at a temperature of 50 DEG C, with 10 days for a test period test solution copper ion concentration, follow-on test 6
Cycle.
Assay is as shown in table 1.
The service check result of the product of the present invention of table 1
Note 1：Test basis are with following experiment as reference：
Experimental design：Configure Hoagland ' s (Gram suddenly) nutrient solution, rice paddy seed of different copper sulphate mass concentrations
(pine before, T-35) in being positioned over above-mentioned nutrient solution after early stage treatment, Continuous Observation simultaneously obtains comparing result (see Fig. 1).Examination
Test data and be shown in Table 2, from result it can be seen that, when sulfuric acid copper content reaches 0.3mg/L, i.e., have substantially to rice paddy seed root growth
Inhibitory action.Therefore, the long-lasting detection method of product of the present invention is formulated according to this result of the test.
The test data of table 2
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (7)
1. a kind of non-degradable copper ion is sustained root drip irrigation pipe of dispelling, it is characterised in that：The drip head of the drip irrigation pipe includes following percentage
The component of content：
Functional master batch 20~50%；
High density polyethylene (HDPE) 50~80%；
Described functional master batch, the component comprising following weight/mass percentage composition：
Impurity content≤0.5% of described anhydrous cupric sulfate, water content≤0.1%, granularity >=200 mesh；
Described non-degradable copper ion sustained release dispels root drip irrigation pipe also comprising color masterbatch and antiaging agent.
2. non-degradable copper ion according to claim 1 is sustained root drip irrigation pipe of dispelling, it is characterised in that：Described protective agent is
Organic acid or acid anhydrides containing carboxylic group.
3. non-degradable copper ion according to claim 1 is sustained root drip irrigation pipe of dispelling, it is characterised in that：Described protective agent is
One or more of acetic anhydride, maleic anhydride, butanedioic acid and ascorbic acid.
4. non-degradable copper ion according to claim 1 is sustained root drip irrigation pipe of dispelling, it is characterised in that：Described sustained release agent bag
Include hydroxypropyl cellulose, sodium hydroxyethlcellulose, CMS and it is kaolinic one or more.
5. the non-degradable copper ion according to any one of Claims 1 to 4 is sustained the preparation method of root drip irrigation pipe of dispelling, its feature
It is：Preparation including functional master batch, drip head injection moulding and drip irrigation pipe three steps of embedded shaping, comprise the following steps that：
1) preparation of functional master batch, each component is according to the proportioning stirring mixing of following mass percent：10~20% high-density polyethylenes
Alkene, 30~80% low density polyethylene (LDPE)s, 6~40% anhydrous cupric sulfates, 0.5~5% protective agent, 1~5% sustained release agent；Each component
Need before mixing by drying and processing；Well mixed component is prepared into functional master batch, and the drying and processing is 75~90
DEG C drying 24h it is standby, after drying the resting period be no more than 24h；
2) drip head injection moulding, drip head component includes 20~50% functional master batch, 50~80% high density polyethylene (HDPE)s, color masterbatch
And antiaging agent, various fillers are poured into blender and is mixed, obtain drip head by Shooting Technique；
3) the embedded shaping of drip irrigation pipe, the drip head for preparing is by the way that selecting and recommending device is continuously welded on plastic pipe inwall through cold automatically
But drip irrigation pipe shaping is completed.
6. non-degradable copper ion according to claim 5 is sustained the preparation method of root drip irrigation pipe of dispelling, it is characterised in that：Step
1) being prepared as described in is extruded using double screw extruder and prepared, and extrusion temperature is controlled at 165~185 DEG C.
7. non-degradable copper ion according to claim 5 is sustained the preparation method of root drip irrigation pipe of dispelling, it is characterised in that：Step
3) blank temperature is controlled at 190~200 DEG C during welding described in.
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|---|---|---|---|---|
| CN1246132A (en) * | 1996-11-08 | 2000-03-01 | Icc工业公司 | Plastic composition |
| CN1333707A (en) * | 1998-11-20 | 2002-01-30 | T-系统国际有限公司 | Drip irrigation hose with root deterrent strip |
| CN101899179A (en) * | 2010-05-29 | 2010-12-01 | 甘肃大禹节水股份有限公司 | Production technology of special water dropper for preventing root system from being invaded by subsurface drop irrigation |
-
2015
- 2015-04-09 CN CN201510166568.5A patent/CN104774362B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1246132A (en) * | 1996-11-08 | 2000-03-01 | Icc工业公司 | Plastic composition |
| CN1333707A (en) * | 1998-11-20 | 2002-01-30 | T-系统国际有限公司 | Drip irrigation hose with root deterrent strip |
| CN101899179A (en) * | 2010-05-29 | 2010-12-01 | 甘肃大禹节水股份有限公司 | Production technology of special water dropper for preventing root system from being invaded by subsurface drop irrigation |
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