CN107629302A - Anti- root intrusion and protection against rodents insect bite underground drip irrigation band - Google Patents
Anti- root intrusion and protection against rodents insect bite underground drip irrigation band Download PDFInfo
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- CN107629302A CN107629302A CN201710840324.XA CN201710840324A CN107629302A CN 107629302 A CN107629302 A CN 107629302A CN 201710840324 A CN201710840324 A CN 201710840324A CN 107629302 A CN107629302 A CN 107629302A
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- microcapsules
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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
Abstract
The invention discloses a kind of anti-root intrusion and protection against rodents insect bite underground drip irrigation band.The underground drip irrigation band, including douche and drip irrigation zone；Wherein, preparing the raw material of the material of the douche includes LLDPE, herbicide microcapsules and dispersed lubricant；Preparing the raw material of the tube wall of the drip irrigation zone includes synthetic capsaicin microcapsules and decis microcapsules.Drip irrigation zone provided by the invention integrates the advantages that preventing root intrusion, protection against rodents, insect bite, the performance of drip irrigation zone is set to have obtained huge improvement, the peculiar smell of core is sheltered, reduce product toxicity, reduce pollution to underground water and soil, while reduce the influence to user's personal safety to a certain extent.
Description
Technical field
The invention belongs to water-saving irrigation field, more particularly to a kind of anti-root intrusion and protection against rodents insect bite underground drip irrigation band.
Background technology
Underground drip irrigation is widely used in crop filling because having the advantages that to prevent hollow billet from losing aging, facilitating field management
Irrigate.But it is always to govern the bottleneck of underground drip irrigation technique development to have following two problems.
First problem is root intrusion problem.Because crop root has hydrotropism, easily close to douche growth very
To entering inside it, douche blocking is in turn resulted in.Mainly there are two kinds to solve the problems, such as the side of root intrusion with herbicide at present
Method, one kind are to apply herbicide with water droplet, but drive root effect to reach, and herbicide dosage is larger, if things go on like this, will cause soil
Middle herbicide residue is more, the quality and safety of serious threat crops；Second is to add herbicide in douche masterbatch.
Geoflow companies of the U.S. and Agrifim companies with the addition of herbicide in masterbatch, produce that preventing root intrusion is special to pour water
Device, though have to a certain extent it is good drive root effect, drive root purpose to reach, herbicide often puts into excess, and medicine
Rate of release is uncontrollable.Herbicide, which is directly added into douche masterbatch, can also threaten user healthy.
In addition, when underground drip irrigation can also be faced with Second Problem during storage or field use, i.e. mouse insect bite is asked
Topic, system leak can be caused, increase peasant's labor intensity, or even influence crop yield.Existing experts and scholars are peppery using synthesizing
Green pepper usually solves the problems, such as damaged by rats, and major way has two kinds, and the first smears synthetic capsaicin for the wall directly in drip irrigation zone, but
The volatilization of capsaicine is difficult to avoid that during preservation, the risk that heavy corrosion user's skin in process of deployment be present；Second
Kind is to be added to synthetic capsaicin in the masterbatch of drip irrigation zone wall.(application publication number CN105062036A) such as Li Jiao discloses one
Kind mouse bite preventing drip irrigation tube mother material, mainly loads to synthetic capsaicin on chitosan, though its volatilization can be effectively reduced, can not
Avoid the corrosion to user's skin.Part experts and scholars solve the problems, such as insect bite by adding decis in masterbatch.Bandit
(application publication number CN105218971A) such as deep and clear rain discloses a kind of modification being applied in agricultural water-saving irrigation facility field and prevented
Insect bite polychloroethylene drip irrigation tape, mainly by adding decis in masterbatch effectively to prevent insect from biting drip irrigation zone, but make
User's skin contact will cause irritation, therefore be unfavorable for actual production.
The content of the invention
It is an object of the invention to provide a kind of anti-root intrusion and protection against rodents insect bite underground drip irrigation band.
Anti- root intrusion provided by the invention and the underground drip irrigation band of protection against rodents insect bite, including douche and drip irrigation zone；Prepare
The raw material of the douche includes LLDPE；Wherein, the raw material for preparing the douche is also micro- including herbicide
Capsule and dispersed lubricant；
Preparing the raw material of the tube wall of the drip irrigation zone includes synthetic capsaicin microcapsules and decis microcapsules.
In above-mentioned underground drip irrigation band, the quality of the LLDPE, herbicide microcapsules and dispersed lubricant
Than for 97.0-98.0：1.0-2.5：0.5, concretely 97.0：2.5：0.5；
The dispersed lubricant is LHM6 type dispersed lubricants.
In the herbicide microcapsules, core is herbicide；Trefanocide, Acetochlor and rust is chosen in particular to go in Tianjin at least
It is a kind of；
Wall material is selected from least one of PHA, Lauxite and chitosan.
The herbicide microcapsules can be made according to the method comprised the following steps：
1. 20g urea is dissolved in 84g water, stirring makes it fully dissolve；Mixed again with 45g formaldehyde, then use hydroxide
Sodium adjusts pH value the stirring reaction 1h at 70 DEG C, Lauxite to be made to 8.0；
2. 10.5g trefanocide solid active compounds are dissolved in 10.5g dimethylbenzene oil phase is made；
3. using 10.5g as wall material as Lauxite, 2g emulsifying agents (agriculture breast 500) and 10.5g water mix to obtain aqueous phase；
4. oil phase and aqueous phase being poured into O/W emulsions being quickly dispersed with stirring into three-necked flask, adjusted stage by stage with ammonium chloride
PH value is then progressively warming up to 60 DEG C of solidification 100min encystation, by the microcapsule suspensions being formed by curing with 4000r/ to 2.0
Min speed centrifugation 1h, washing, is finally dried in vacuo, and vacuum 0.06-0.08MPa, temperature is specially 50-60 DEG C,
Obtain herbicide microcapsule powder.
In the synthetic capsaicin microcapsules, core is synthetic capsaicin；Wall material is PLA；Wherein, synthetic capsaicin
English name be Nonivamide；(Pelargonic acid vanillylamide), chemical name also known as n-nonanoic acid vanilloyl
Amine or synthesis capsaicine, molecular formula C17H27NO3, No. CAS is 2444-46-4；
In the decis microcapsules, core is decis；Wall material is Lauxite.
After synthetic capsaicin and decis first are carried out into microencapsulation respectively, then mix with other materials, can just keep away
Exempt to produce drug effect conflict.
Above-mentioned synthetic capsaicin microcapsules can be made according to the method comprised the following steps：
1. the synthetic capsaicin that PLA and mass fraction that mass fraction is 2%-6% are 1%-3% is added into dichloro
In methane, 4h, which is stirred at room temperature, is completely dissolved it, obtains the capsaicin solution of PLA one；
2. 1-8g polyvinyl alcohol is slowly fallen in 100g or so the aqueous solution, 20 DEG C or so of water temperature is kept, makes its swollen
0.5-1h, 90 DEG C are again heated to, and continue 2.5h, it is fully dissolved, until without fine particle in solution；
3. the above-mentioned solution of 10g is added in 40g poly-vinyl alcohol solutions, in the ultrasonic emulsification 2.5h that power is 2kw, obtain
Emulsion；
4. the emulsion is heated into 50 DEG C, stirring 3h or so flings to dichloromethane and obtains white emulsion, and the colloidal solution is high
Fast centrifuge is dried in vacuo after centrifuging 0.5-1h under 4000r/min, finally gives synthetic capsaicin microcapsules；
The decis microcapsules can be made according to the method comprised the following steps：
1. take 40.0g urea to be mixed with 97.3g w (HCHO)=37% formaldehyde [n (urea): n (formaldehyde)=1: 1.8],
Reaction 1h at pH value=8.0,70 DEG C, which is adjusted, with NaOH obtains sticky transparent water-soluble melocol prepolymer；
2. taking 40g w (decis)=40% deltamethrin milk oil, 15g distilled water is added, takes 5g styrene-horse
Carry out acid anhydride copolymer as dispersion emulsifier, with 8000r/min speed 3~5min of homogeneous in mulser, form O/W types breast
Change liquid；
3. it is mixed with melocol prepolymer, being sufficiently stirred makes prepolymer be dissolved in the decentralized medium water of emulsion,
Catalyst is added, is started with microscopic to polymer after depositing to capsule-core surface, heating is allowed to continue to coat and gradually consolidated
Change, 1h be incubated after endpoint pH is reached, adjust pH value=7.0 with NaOH, 1h is centrifuged with 4000r/min speed after cooling,
Washing, is finally dried in vacuo, vacuum 0.06-0.08MPa, temperature is specially 50-60 DEG C and obtains the micro- glue of decis
Capsule.
Because the material of douche has stronger hydrophobicity, will become to make its interfacial area most when current are in contact with it
Small state, it is unfavorable in water microorganism etc. in the attachment of wall, adds herbicide microcapsule powder in material in addition, can prevent
The root intrusion of douche blocks, and so as to improve the performance of anti-blockage of drip irrigation zone, effectively extends the service life of drip irrigation zone.
Further, since adding dispersed lubricant in material, microcapsule powder can be scatter, be allowed to easily uniformly mix making
In the masterbatch of douche, the performance of anti-blockage of douche can be finally further enhanced.
The douche can be made according to various conventional methods, can such as be made as follows：1. batch mixing, raw material is mixed
Uniformly；2. storing, screw in injection molding machine is good by melting sources, and is stored in screw rod end；3. injection machine matched moulds, mould is closed, and
The clamping pressure enough to mould, prevent that mould pressure in injection machine material feeding is excessive and separates；4. material feeding, injection machine is to mould
The raw material that quantification injection has been melted, make raw material full of the die cavity in mould；5. pressurize cools down, it is cooled to the raw material in mould
Solid-state, douche shaping；6. molding, two parts of mould separate with the template of injection machine；7. ejecting, injection machine will be bonded at mould
On douche finished product ejection, fall into the finished product hopper under injection machine.Now douche makes and finished, and waits and being managed with drip irrigation zone
The combination of wall.
Prepare the material of the drip irrigation zone tube wall raw material include nylon 6, LLDPE (LLDPE, ethene with
The copolymer of alpha-olefin), dispersed lubricant, antiager, the agent of plastics cold-resistant flexible and masterbatch；
The mass ratio of the capsaicin microcapsule, decis microcapsules and nylon 6 is specially 23-27：18-22：52-
58, more specifically can be 25：20：55；
The LLDPE, dispersed lubricant, antiager, the quality of the agent of plastics cold-resistant flexible and black master batch
Than being specially 87.5-89.5：0.5：2.0：1.0：3.0, concretely 88.7：0.5：2.0：1.0：3.0；
The gross mass of the capsaicin microcapsule, decis microcapsules and nylon 6 and the quality of the dispersed lubricant
Ratio be specially 4.5-5.5：0.5, concretely 4.8：0.5；
The dispersed lubricant is specially LHM6 type dispersed lubricants；
The plastics cold-resistant flexible agent is specially phenylethylene terpolymer modifying agent, can be from various open commercial sources
Be commercially available, such as can be DOD purchased from the high-plastic rubber Materials Co., Ltd of the Shanghai Road rising sun, production code member product；
The masterbatch concretely black master batch, can be commercially available from various open commercial sources, such as can Dongguan City gold shake
Plastics Co., Ltd, production code member for gold shake 2014 product；
The antiager is specially AOD, can be commercially available from various open commercial sources, such as be purchased from Beijing's chemical industry and grind
Study carefully institute.
Because drip irrigation zone tube wall has stronger hydrophobicity, will become to make its interfacial area minimum when current are in contact with it
State, be unfavorable for the attachment of microorganism etc. in water in wall, so as to improve the performance of anti-blockage of drip irrigation zone in itself；Because of material
Middle addition nylon 6, due to its machine-direction oriented effect in Rapid stretching, can strengthen the resistance to drawing property of drip irrigation zone tube wall；Cause
Dispersed lubricant is added in material, microcapsules can be scatter, uniform incorporation is allowed to and makes in the masterbatch of drip irrigation zone tube wall；
Because adding antiager in material, the ageing resistace of drip irrigation zone tube wall can be improved；, can because adding plastics cold-resistant flexible agent in material
The cold resistant property of material is improved, the pliability of material improves, and can effectively prevent drip irrigation zone tube wall during collapsing, douche pair
Its infringement；Because adding synthetic capsaicin microcapsule powder in material, destruction of the murine to drip irrigation zone tube wall can be prevented, is had
Effect extends the service life of drip irrigation zone tube wall；Because adding decis microcapsule powder in material, effectively prevent insect to drop
The destruction with tube wall is filled, effectively extends the service life of drip irrigation zone tube wall.It may ultimately reach protection against rodents insect bite, enhancing drip irrigation zone
The toughness of tube wall and the effect for reducing drip irrigation zone pipe thickness.
The preparation of the douche comprises the following steps：Each raw material mixed melting post-processing is molded；
Specifically, in the melting step, temperature is 170-220 DEG C；Time is 0.5-1.0h；
The preparation of the drip irrigation zone tube wall comprises the following steps：Each raw material mixed melting post-processing is molded；
Specifically, in the melting step, temperature is 170-220 DEG C；Time is 0.5-1.0h.
In addition, application of the underground drip irrigation band of the invention described above offer in underground drip irrigation, falls within the protection of the present invention
Scope.
The present invention has advantages below：
1) drip irrigation zone provided by the invention integrates the advantages that preventing root intrusion, protection against rodents, insect bite, makes the use of drip irrigation zone
Performance has obtained huge improvement, be mainly manifested in uniformity of irrigation water appilcation improve, the damaged degree of drip irrigation zone significantly mitigate and
The service life of drip irrigation zone extends.
2) present invention controls the dosage of core and rate of release using the distinctive diffusion of microcapsules and volatility, shelters
The peculiar smell of core, reduce product toxicity, reduce pollution to underground water and soil, while reduce to a certain extent
Influence to user's personal safety.
3) main material of drip irrigation zone is LLDPE, the thinned masterbatch of protection against rodents insect bite-toughness reinforcing, scattered lubrication
Masterbatch is thinned by nylon, synthetic capsaicin in agent, antiager, the agent of plastics cold-resistant flexible, black master batch, wherein protection against rodents insect bite-toughness reinforcing
It is made after microcapsules, the extruded granulation of decis microcapsules.Material has good anti-pull-out property, effectively increases drip irrigation
The toughness of band.The ageing resistace of material is higher, can extend the service life of drip irrigation zone.The cold performance of material is higher, trembles with fear
When cryogenic region underground drip irrigation uses material, bursting by freezing can be effectively prevented.The protection against rodents insect bite performance of material is higher, due to synthetic capsaicin and
Decis walks quickly and keeps away characteristic to mouse worm, can effectively reduce destruction of the mouse worm to drip irrigation zone, so as to extend the use longevity of drip irrigation zone
Life.
Embodiment
With reference to specific embodiment, the present invention is further elaborated, but the present invention is not limited to following examples.Institute
It is conventional method unless otherwise instructed to state method.The raw material can obtain from open commercial sources unless otherwise instructed.
Embodiment 1,
Clover is Bayannaoer city of the Inner Mongolia Autonomous Region Dengkou County chief crop, and irrigation method main at present drips for underground
Fill, significantly to save artificial and saving water resource.But the problem of root intrusion and mouse insect bite, is in local alfalfa cultivation process
In it is very prominent, directly govern application of the underground drip irrigation during local alfalfa cultivation.
1) preventing root intrusion microcapsules preparation process：
It is wall material by core, PHA of trefanocide, trefanocide microcapsules is prepared using solvent evaporation method, specifically
Step is as follows：
1. 20g urea is dissolved in 84g water, stirring makes it fully dissolve；Mixed again with 45g formaldehyde, then use hydroxide
Sodium adjusts pH value the stirring reaction 1h at 70 DEG C, Lauxite to be made to 8.0；
2. 10.5g trefanocide solid active compounds are dissolved in 10.5g dimethylbenzene oil phase is made；
3. 10.5g Lauxites, 2g emulsifying agents (agriculture breast 500) and 10.5g water are mixed into obtain aqueous phase；
4. oil phase and aqueous phase being poured into O/W emulsions being quickly dispersed with stirring into three-necked flask, adjusted stage by stage with ammonium chloride
PH value is then progressively warming up to 60 DEG C of solidification 100min encystation, by the microcapsule suspensions being formed by curing with 4000r/ to 2.0
Min speed centrifugation 1h, washing, is finally dried in vacuo, and vacuum 0.06-0.08MPa, temperature is specially 50-60 DEG C,
Particle diameter is obtained between 10~20 μm, the trefanocide microcapsules that drugloading rate is 53.1%.
2) protection against rodents insect bite microcapsules preparation process
A, synthetic capsaicin microcapsules：It is wall material by core, PLA of synthetic capsaicin, is prepared using solvent evaporation method
Synthetic capsaicin microcapsules, are comprised the following steps that：
1. the synthetic capsaicin that PLA and mass fraction that mass fraction is 2%-6% are 1%-3% is added into dichloro
In methane, 4h, which is stirred at room temperature, is completely dissolved it, obtains the capsaicin solution of PLA one；
2. 1-8g polyvinyl alcohol is slowly fallen in 100g or so the aqueous solution, 20 DEG C or so of water temperature is kept, makes its swollen
0.5-1h, 90 DEG C are again heated to, and continue 2.5h, it is fully dissolved, until without fine particle in solution；
3. the above-mentioned solution of 10g is added in 40g poly-vinyl alcohol solutions, in the ultrasonic emulsification 2.5h that power is 2kw, obtain
Emulsion；
4. the emulsion is heated into 50 DEG C, stirring 3h or so flings to dichloromethane and obtains white emulsion, and the colloidal solution is high
Fast centrifuge is dried in vacuo after centrifuging 0.5-1h under 4000r/min, finally finally gives particle diameter between 3-5 μm, drugloading rate
For 56.9% synthetic capsaicin microcapsules；
B, decis microcapsules：It is wall material by core, Lauxite of decis, bromine is prepared using situ aggregation method
Cyano chrysanthemate microcapsules, are comprised the following steps that：
1. take 40.0g urea to be mixed with 97.3g w (HCHO)=37% formaldehyde [n (urea): n (formaldehyde)=1: 1.8],
Reaction 1h at pH value=8.0,70 DEG C, which is adjusted, with NaOH obtains sticky transparent water-soluble melocol prepolymer；
2. taking 40g w (decis)=40% deltamethrin milk oil, 15g distilled water is added, takes 5g styrene-horse
Carry out acid anhydride copolymer as dispersion emulsifier, with 8000r/min speed 3~5min of homogeneous in mulser, form O/W types breast
Change liquid；
3. it is mixed with melocol prepolymer, being sufficiently stirred makes prepolymer be dissolved in the decentralized medium water of emulsion,
Catalyst is added, is started with microscopic to polymer after depositing to capsule-core surface, heating is allowed to continue to coat and gradually consolidated
Change, 1h be incubated after endpoint pH is reached, adjust pH value=7.0 with NaOH, 1h is centrifuged with 4000r/min speed after cooling,
Washing, is finally dried in vacuo, vacuum 0.06-0.08MPa, temperature is specially 50-60 DEG C, obtains particle diameter at 10 μm
Within, drugloading rate be 47.6% decis microcapsules；
3) douche is prepared
1) raw material and proportioning：The douche main material is LLDPE, and percentage by weight is
97.0%；Trefanocide microcapsules (effective content of trefanocide is 70%), percentage by weight 2.5%, the scattered lubrication of LHM6 types
Agent, percentage by weight 0.5%, three kinds of 170 DEG C of materials are cooled into douche after melting 1h；
2) manufacturing process：Douche production needs injection machine and douche mould.Specific manufacturing process is as follows：1. batch mixing,
Raw material is well mixed；2. storing, screw in injection molding machine is good by melting sources, and is stored in screw rod end；3. injection machine matched moulds, by mould
Tool closure, and the clamping pressure enough to mould, prevent that mould pressure in injection machine material feeding is excessive and separates；4. material feeding, note
The raw material that molding machine has melted to the injection of mould quantification, make raw material full of the die cavity in mould；5. pressurize cools down, make in mould
Raw material is cooled to solid-state, douche shaping；6. molding, two parts of mould separate with the template of injection machine；7. eject, injection machine
The douche finished product being bonded on mould is ejected, fallen into the finished product hopper under injection machine.Now douche makes and finished, and waits
And the combination of drip irrigation zone tube wall；
4) prepare protection against rodents insect bite-toughness reinforcing and drip irrigation zone tube wall is thinned
1) prepared by masterbatch：25 parts of synthetic capsaicin microcapsules, 20 parts of decis microcapsules and 55 parts of nylon 6 are (poly-
Acid amides 6) it is well mixed, it is granulated through double screw extruder, obtains protection against rodents insect bite-toughness reinforcing and masterbatch is thinned；
2) raw material and proportioning：The drip irrigation zone tube wall main material is LLDPE, and percentage by weight is
88.7%, masterbatch, percentage by weight 4.8%, LHM6 type dispersed lubricants, percentage by weight is thinned in protection against rodents insect bite-toughness reinforcing
0.5%, antiager (AOD, Research Inst. of Chemical Industry, Beijing), percentage by weight 2.0%, plastics cold-resistant flexible agent (DOD, Shanghai Road
The high-plastic rubber Materials Co., Ltd of the rising sun), percentage by weight 1.0%, (gold shakes 2014 to black master batch, and the Dongguan City gold plastics that shake are limited
Company), percentage by weight 3.0%, regroup after six kinds of materials, 170 DEG C of melting 1h the new material formed after cooling, is used in combination
To make drip irrigation zone tube wall；
5) manufacturing process of drip irrigation zone of the present invention
1) the early-stage preparations process of douche：1. qualified douche boxing for later use will be detected；2. douche is put into filling
Hydrophone feeder；3. entering screening machine, the douche of the correct direction filtered out enters stocker groove by back-blowing device；4. pour water
Device is by entering douche conveyer after stocker groove；5. finally reaching behind conveyer and sending piece bar, douche is sent to drip irrigation
In pipe, wait and the combination of drip irrigation zone tube wall.
2) manufacturing process of drip irrigation zone tube wall and the moulding process of drip irrigation zone：1. raw material is formulated in blender more than
It is well mixed；2. the raw material in hopper is drawn onto in drying hopper by vacuum feeder；3. tube extrusion, with carrying for heating-up temperature
Height, the raw material for being changed into molten state squeeze into head after filtering；4. vacuum sizing, the size of vacuum envelope determines caliber；5. pinch roller glues
Close, press together douche and drip irrigation zone in this position pinch roller；6. the basic cooling and shaping after vacuum tank, it is laggard
Enter water logging bosh, drip irrigation zone is further cooled to position in water logging tank；7. blow tube surfaces off into drying box after cooling
The globule；8. traction is punched, two before and after hauling machine, drip irrigation zone is tensed, centre is puncher；9. punching detection, every dozen one
Individual hole just carries out one-time detection and taken pictures, and has the underproof alarm of punching, and error signal is reached into winder record；10. hole is beaten
Packaging and storage after drip irrigation zone is qualified after testing afterwards.
Embodiment 2, the anti-root intrusion of the gained underground drip irrigation band of embodiment 1 and protection against rodents insect bite experiment
(1) anti-root intrusion experiment：
By the douche comprising trefanocide microcapsules and plus trefanocide microcapsules douche respectively with common drip irrigation
Band tube wall is processed into drip irrigation zone, and the properties of product that anti-root intrusion douche is carried out by tomato underground drip irrigation pot experiment are tested
Card, 36 basin tomatoes are potted plant altogether, and it is potted plant that each processing is respectively provided with 18 basins.
By the flow for two kinds of drip irrigation zones for testing different periods respectively, the douche flow of the microcapsules containing trefanocide is found
Do not have not finding that root system enters the phenomenon of douche delivery port when significant change and final sampling；Filling without trefanocide microcapsules
Hydrophone sample when find 5 douches blocked in various degree successively, show add trefanocide microcapsules douche become root effect
Fruit is good；
By taking whole, it is found that two kinds of processing total root quantities are not significantly different；
Root is taken by layering, it is found that the density for adding root near the douche delivery port of trefanocide microcapsules is considerably less than not
The processing added；
Trefanocide content in the fruit of trefanocide microcapsules processing is added by testing, measures result as 0.
Result above shows there is the good effect for preventing root intrusion after trefanocide microcapsules are added in douche material
Fruit and fruit is not influenceed, show the method safe and feasible.
(2) anti-insect bite experiment：
The protection against rodents insect bite drip irrigation zone tube wall and ordinary drip irrigation tape tube wall made are processed into drip irrigation zone with douche respectively,
It is respectively put into the PVC grooves of simulation underground drip irrigation, places 5 grubs, cricket, longicorn and these insects in groove respectively
Food, after cultivating a period of time, 3 are laid in groove respectively and adds microcapsules containing decis and without decis microcapsules
The buried depth of drip irrigation zone, wherein drip irrigation zone is 20cm, and the flow of douche is 2L/h, then every water flowing in 3 days once, is poured water every time
Half an hour, drip irrigation zone is dug out after one month, the situation that observation drip irrigation zone is bitten by insect, measure 6 drip irrigation zones above respectively
The area to be bitten by worm, by microcapsules containing decis and the area difference that bites without decis microcapsules drip irrigation zone tube wall
It is averaged：The area that the drip irrigation zone of the microcapsules containing decis is bitten is 0.005%, the drop without decis microcapsules
The area that filling band is bitten is 0.132%, it can be seen that the drip irrigation zone tube wall for adding decis microcapsules is prevented with good
The effect of insect bite.
(3) mouse bite preventing is tested：
Respectively by the drip irrigation zone tube wall of 3 microcapsules containing synthetic capsaicin and drip irrigation zone without synthetic capsaicin microcapsules
Tube wall is positioned in a vacant room, and 5 SD rats, enough food will be placed in room, but does not discharge water source, simultaneously will
Drip irrigation zone, which is arranged on, to be connected on complete pipeline, and wall built-up reclaimed water once, is just full of is poured water afterwards with regard to pause every time by daily water flowing,
For building the environment of the water shortage of SD rats, promote its drip irrigation zone that bites to seek sources of water, drip irrigation zone is observed after most seven days finally and is gnawed
The area stung simultaneously takes after average：The bitten area pullled of drip irrigation zone tube wall for adding synthetic capsaicin microcapsules is
0.012%, it is 1.373% that non-adduction is pullled the area that bites into capsaicin microcapsule drip irrigation zone tube wall, it can be seen that is added
The drip irrigation zone tube wall of synthetic capsaicin microcapsules has the effect of good mouse bite preventing.
Claims (10)
1. a kind of anti-root intrusion and the underground drip irrigation band of protection against rodents insect bite, including douche and drip irrigation zone；Prepare the douche
Raw material include LLDPE；It is characterized in that：The raw material for preparing the material of the douche is micro- including herbicide
Capsule and dispersed lubricant；
Preparing the raw material of the tube wall of the drip irrigation zone includes synthetic capsaicin microcapsules and decis microcapsules.
2. underground drip irrigation band according to claim 1, it is characterised in that：The LLDPE, herbicide are micro-
The mass ratio of capsule and dispersed lubricant is 97.0-98.0：1.0-2.5：0.5 or 97.0：2.5：0.5；
The dispersed lubricant is LHM6 type dispersed lubricants.
3. underground drip irrigation band according to claim 1 or 2, it is characterised in that：In the herbicide microcapsules, core be except
Careless agent；
Wall material is selected from least one of PHA, Lauxite and chitosan.
4. underground drip irrigation band according to claim 3, it is characterised in that：The herbicide be selected from trefanocide, Acetochlor and
Rust goes at least one of Tianjin.
5. according to any described underground drip irrigation band in claim 1-4, it is characterised in that：The synthetic capsaicin microcapsules
In, core is synthetic capsaicin；Wall material is PLA；
In the decis microcapsules, core is decis；Wall material is Lauxite.
6. according to any described underground drip irrigation band in claim 1-5, it is characterised in that：Prepare the tube wall of the drip irrigation zone
Raw material also includes nylon 6, LLDPE, dispersed lubricant, antiager, the agent of plastics cold-resistant flexible and masterbatch.
7. underground drip irrigation band according to claim 6, it is characterised in that：The synthetic capsaicin microcapsules, decis
The mass ratio of microcapsules and nylon 6 is 23-27：18-22：52-58 or 25：20：55；
The LLDPE, dispersed lubricant, antiager, the mass ratio of the agent of plastics cold-resistant flexible and masterbatch are
87.5-89.5：0.5：2.0：1.0：3.0 or 88.7：0.5：2.0：1.0：3.0；
The gross mass of the synthetic capsaicin microcapsules, decis microcapsules and nylon 6 and the quality of the dispersed lubricant
Ratio be 4.5-5.5：0.5 or 4.8：0.5.
8. according to any described underground drip irrigation band in claim 1-7, it is characterised in that：The preparation of the douche is included such as
Lower step：Each raw material mixed melting post-processing is molded；
The preparation of the tube wall of the drip irrigation zone comprises the following steps：Each raw material mixed melting post-processing is molded.
9. underground drip irrigation band according to claim 8, it is characterised in that：In the melting step, temperature is 170-220
℃；Time is 0.5-1.0h.
10. application of any underground drip irrigation band in underground drip irrigation in claim 1-9.
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| CN201710840324.XA CN107629302A (en) | 2017-09-18 | 2017-09-18 | Anti- root intrusion and protection against rodents insect bite underground drip irrigation band |
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Inventor after: Li Yunkai Inventor after: Mei Jiaojiao Inventor after: Feng Ji Inventor after: Li Shuqin Inventor before: Li Yunkai Inventor before: Mei Jiaojiao Inventor before: Feng Ji |
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Application publication date: 20180126 |