CN107936494A - A kind of whole life cycle design masterbatch for suppressing weeds and preparation method thereof - Google Patents
A kind of whole life cycle design masterbatch for suppressing weeds and preparation method thereof Download PDFInfo
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- CN107936494A CN107936494A CN201711254382.0A CN201711254382A CN107936494A CN 107936494 A CN107936494 A CN 107936494A CN 201711254382 A CN201711254382 A CN 201711254382A CN 107936494 A CN107936494 A CN 107936494A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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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
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
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- C08K5/095—Carboxylic acids containing halogens
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/10—Esters; Ether-esters
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/37—Thiols
- C08K5/378—Thiols containing heterocyclic rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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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
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- 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
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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Abstract
A kind of whole life cycle design masterbatch for suppressing weeds, in terms of parts by weight, is made of following components proportioning blending：Polyadipate butylene terephthalate（PBAT）30 80 parts；15 35 parts of carbon black；5 25 parts of herbicide；1 10 parts of carbon black dispersion inorganic agent.Using the adsorption function of carbon black, herbicide is mixed into carbon black, is mixed by high-speed stirred, then under Biodegradable resin carrier function, granulation is fabricated to black masterbatch, is then added to inflation film in degradative plastic film material in proportion；Since herbicide is entered in carbon black internal voids during mixed processing, by carbon-enwrap, thus herbicide does not separate out when blowing mulch.
Description
Technical field
The present invention relates to a kind of whole life cycle design masterbatch for suppressing weeds and preparation method thereof, is mainly used for covering ground
Film, can effectively suppress the growth of weeds, belong to processing of high molecular material and application field.
Background technology
With the development of plastic industry, plastic product purposes is more and more extensive, wherein as the agricultural of crops covering
Plastic film with effects such as insulation, moisturizings because being widely used；But the non-biodegradable of petroleum base resin is made to soil environment
Into larger pollution, thus have many degradative plastic films at present to substitute non-degradable mulch；Covering mulch is being conducive to crops life
While long, weeds propagation and widespread is also more serious, thus needs artificial weeding or play herbicide, and labor cost is higher；Weeding
Agent mulch is new chemical weed control method developed in recent years, is reducing labor cost, reduces pesticide to human body
Poison and environmental pollution aspect plays certain effect.
Film is made using modes such as spraying, smearings in the herbicide mulch applied at present, some, and herbicide is blended in by some
Modified in raw material, granulation, but smearing herbicide can waste a large amount of manpower and materials；Also there are the patent of many this respects, such as application number
For 201210525950.7 patent, a kind of can be by PBAT, PBAT+PLA or PBAT with the weed removal mulch film of complete biodegradable
+ PPC and herbicide, chain extender, releasing agent composition, using mixer by PBAT, PBAT+PPC or PBAT+PLA and herbicide, expansion
After chain agent, releasing agent stir evenly, extrusion is carried out to the material after blending with double screw extruder and is modified, is granulated；Application No.
95108803.3 patent, a kind of controllable light and biologic degradable herbicidal agricultural mulching, its component include polyvinyl resin 50-
70%, modified starch 30-50%, photosensitizer 0.02-0.30%, prooxidant 0.01-0.08%, Degradation Control agent 0.02-
0.30%th, herbicide 0.08-0.2%.The film with the addition of herbicide, make degradable mulch that it is miscellaneous to possess control in degradation process
The effect of thick grass life；The patent of application number 201510563522.7, a kind of crops controlled degradation desinsection weed eradication complete biodegradable
Mulch, is made of following component, poly- alkyl alkanoic acid fat 70-79%, polylactic acid 8-25%, nanometer calcium powder 1-4%, Rynaxypyr
0.05-0.25%, paraquat 0.05-0.25%, carbendazim 0.1-0.5%, and biodegradation agent, mixing, high-speed kneading, then
Blowfilm shaping；The patent of Application No. 201610985359.8, a kind of biodegradation weed removal mulch film answering in potato culture
With composed of the following components, Biodegradable resin 70-97%, biodegradable herbicide master batch 3-30%, the masterbatch are removed by 10-60%
The sorbitan laurate and methyl glycol fatty acid ester of careless agent and 0.5-7% form, and by being ultrasonically treated, but can not prevent
Herbicide separates out loss.Comprehensive analysis above patent finds that herbicide is all to be directly appended in plastics or make herbicide
Masterbatch, which is then added in plastics, extrudes blown film.It is well known that if herbicide and the Compatibility in Plastics being blended are splendid, then weeding
Agent will not separate out in the plastic, just not have weeding purpose；Herbicide must be incompatible with the plastics being blended, in rainwater and the sun
Herbicide separates out and can be only achieved herbicidal effect during light is exposed to the sun；But the herbicide incompatible with plastics is added to pole in plastics
Easily separate out, often weeds do not grow also, and herbicide, which has separated out, to be finished or remain little, or even in mulch storage and transportation process
In largely separate out so that herbicide concentration is greatly reduced in mulch, does not have herbicidal effect.
The content of the invention
To solve the above problems, patent of the present invention utilizes the adsorption function of carbon black, herbicide is mixed into carbon black, is passed through
High-speed stirred mixes, and then under Biodegradable resin carrier function, granulation is fabricated to black masterbatch, is then added in proportion
Inflation film in degradative plastic film material；Since herbicide is entered in carbon black internal voids during mixed processing, by carbon-enwrap,
Thus when blowing mulch, herbicide does not separate out.
The degradable master batch is that herbicide is blended in carbon black, and using the suction-operated of carbon black, herbicide is fully adsorbed
In carbon black internal voids, under Biodegradable resin carrier function, black masterbatch is fabricated to by being granulated, is then added to life
Chequered with black and white mulch is blow molded in thing degradative resin；This mulch advantage is being stored with transportational process, and herbicide is due to carbon black
The absorption cladding of internal voids is not in be lost in, but during mulch use, under the action of light and heat, herbicide will
Slowly separate out, everywhere since the droplet that earth's surface water evaporation forms flows to soil surface in film surface, so as to play herbicide effect；It is special
It is not that herbicide separates out will be more, and the killing to weeds has fabulous effect, and the mother with noon solar glare direct projection
Material can complete biodegradable into carbon dioxide and water, soil and environment will not be polluted.
Technical solution of the present invention is as follows：A kind of whole life cycle design masterbatch for suppressing weeds, the masterbatch is by following components
Proportioning blending composition（Parts by weight）：Polyadipate butylene terephthalate（PBAT）30-80 parts；15-35 parts of carbon black；Weeding
5-25 parts of agent；1-10 parts of carbon black dispersion inorganic agent.
The polyadipate butylene terephthalate（PBAT）For Biodegradable polyester, molecular weight 5000-30000 is low
The PBAT processing fluidities of molecular weight are good, for masterbatch carrier resin.
The carbon black is that the trade mark of Cabot production is M717 carbon blacks, which has good blackness, easily disperses, have
The characteristic of excellent adsorption.
The herbicide is double (the isopropylamino) -2- methyl mercapto -1,3,5- triazines of 4,6- or 2- methyl -4- chlorobenzene oxygen second
Acid.
The carbon black dispersion inorganic agent is compound monoalkoxy class titanate esters.
The present invention it is a kind of suppress weeds whole life cycle design masterbatch preparation process be：
（1）Herbicide solution is prepared：With acetone or alcohol solvent 1-1.5 is pressed with herbicide：1 ratio is mixed, by solid
Powder herbicide is configured to acetone or alcohol solution；
（2）By carbon black, herbicide solution（Solution proportion is converted into by herbicide actual amount to weigh）, carbon black dispersion inorganic agent presses
Ratio weighs up, and is together put into mixed processing in high-speed mixer, and is warming up to 50-70 DEG C, to ensure that acetone or alcohol is fully waved
Hair；High-speed mixer is mixed using variable speed, and speed combines, and mixes slowly 450-600 revs/min, high-speed stirred rotating speed is
1200-1500 revs/min.Be conducive to carbon black quick adsorption cladding herbicide, incorporation time 5-10 minutes, then, then in proportion
Polyadipate butylene terephthalate is added, continues mixing 2-5 minutes, releases mixed material；
（3）By the material mixed in double screw extruder extruding pelletization, 110~170 DEG C of extruding pelletization temperature, cuts through plastics
Grain machine-cut into pellet be whole life cycle design masterbatch of the present invention.
The present invention has the beneficial effect that：The degradable master batch is that herbicide is blended in carbon black, is made using the absorption of carbon black
With, herbicide is fully adsorbed in carbon black internal voids, under Biodegradable resin carrier function, by be granulated be fabricated to charcoal
Black masterbatch, is then added in Biodegradable resin and is blow molded chequered with black and white mulch.
This mulch advantage is being stored with transportational process, and herbicide will not due to the absorption cladding of carbon black internal voids
It is lost in, but during mulch use, under the action of light and heat, herbicide will be separated out slowly, everywhere in film surface
Since the droplet that earth's surface water evaporation forms flows to soil surface, so as to play herbicide effect；In particular with noon solar glare
Direct projection, herbicide separates out will be more, and the killing to weeds has a fabulous effect, and the masterbatch can complete biodegradable into
Carbon dioxide and water, will not pollute soil and environment.Material therefor of the present invention is easy to get, the production Technology letter of selection
It is single ripe, there is practicality and operability.
Embodiment
With reference to embodiment（Prepare different herbicide concentrations and the masterbatch of carbon black concentration）, the present invention is made further
Illustrate, but be not intended to limit the present invention.
The trade mark of PBAT and index are as follows in embodiment：Trade mark TH801T, the poly- limited public affairs of fully bio-degradable plastic cement of Dongguan benevolence
Department, 110-120 DEG C of fusing point, density 1.2-1.28g/cm3；The carbon black is that the trade mark of Cabot production is M717 carbon blacks, described
Herbicide is double (the isopropylamino) -2- methyl mercapto -1,3,5- triazines of 4,6-；Carbon black dispersion inorganic agent is compound monoalkoxy class
Titanate esters, trade mark NDZ-131.
Embodiment 1：In terms of parts by weight, polyadipate butylene terephthalate（PBAT）:40 parts；Carbon black：30 parts；Remove
Careless agent：20 parts；Carbon black dispersion inorganic agent：10 parts.
Embodiment 2：Polyadipate butylene terephthalate（PBAT）:65 parts；Carbon black：20 parts；Herbicide：10 parts；Charcoal
Black dispersion treating agent：5 parts.
Embodiment 3：Polyadipate butylene terephthalate（PBAT）:79 parts；Carbon black：15 parts；Herbicide：5 parts；Carbon black
Dispersion treating agent：1 part.
Comparative example 1：70 parts of Biodegradable resin, 30 parts of biodegradable herbicide master batch, the masterbatch by 20 parts of herbicides and
10 parts of sorbitan laurate and methyl glycol fatty acid ester and polyadipate butylene terephthalate（PBAT）70 parts of groups
Into.
Comparative example 2：Polyadipate butylene terephthalate（PBAT）:80 parts；Herbicide：10 parts；Coupling agent：5 parts, in vain
Oil：5 parts.
Embodiment and 2 masterbatch preparation process of comparative example are same as above, twin-screw prilling temperature（℃）：
1st area, 2nd area, 3rd area, 4th area, 5 area's head
120 140 150 170 155 160
It is added to biodegradable polyadipate butylene terephthalate and poly (propylene carbonate) in required ratio after granulation
(PPC) in blend, both ratios are PBAT:PPC=2：1, the part by weight of masterbatch is the 10% of total amount, then in single screw rod
Blown film.
1 preparation method of comparative example for be granulated after directly in single screw rod Blown film.
Embodiment and comparative example mulch separate out the performance test results such as table 1 under certain condition.
1 degradable PVC composition embodiment of table, the performance test results of comparative example
。
Test condition：The ground membrane sample of constant weight is put into the solution of 3 parts of detergent concentrations, is impregnated at room temperature
168 it is small when, then take out place at room temperature dry 48 it is small when, weigh and calculate mulch weight loss, represented with percentage, numerical value
Lower explanation is more not easy to separate out, on the contrary then separate out more serious.
Tested through planting peanut, pesticide is sustained release in mulching film master batch of the invention, and efficacy time is grown, same planting conditions
Under, the peanut yield average specific comparative example of embodiment is high by 17%.
The mulch of Biodegradable mulch masterbatch blowing of the present invention is anti-it can be seen from the performance test results separates out herbicide energy
Power is superior to comparative example.
Claims (6)
1. a kind of whole life cycle design masterbatch for suppressing weeds, in terms of parts by weight, is made of following components：Polyadipate pair
Terephtha-late（PBAT）30-80 parts；15-35 parts of carbon black；5-25 parts of herbicide；1-10 parts of carbon black dispersion inorganic agent.
2. suppress the whole life cycle design masterbatch of weeds according to claim 1, it is characterised in that the polyadipate pair
Terephtha-late molecular weight 5000-30000.
3. suppress the whole life cycle design masterbatch of weeds according to claim 1, it is characterised in that the carbon black is rich for card
Special M717 carbon blacks.
4. suppressing the whole life cycle design masterbatch of weeds according to claim 1, it is characterised in that the herbicide is 4,
Double (the isopropylamino) -2- methyl mercapto -1,3,5- triazines of 6- or 2-methyl-4-chlorophenoxyacetic acid.
5. suppress the whole life cycle design masterbatch of weeds according to claim 1, it is characterised in that at the carbon black dispersion
Reason agent is compound monoalkoxy class titanate esters, trade mark NDZ-131.
6. suppress the preparation method of the whole life cycle design masterbatch of weeds according to claim 1, it is characterised in that including
Following steps：
（1）Herbicide solution is prepared：With acetone or alcohol solvent 1-1.5 is pressed with herbicide：1 ratio is mixed, by weeding
Agent is configured to acetone or alcohol solution；
（2）By carbon black, herbicide solution, carbon black dispersion inorganic agent weighs up in proportion, is together put into high-speed mixer at mixing
Reason, and 50-70 DEG C is warming up to, to ensure that acetone or alcohol fully volatilizees；High-speed mixer is mixed using variable speed, speed knot
Close, mix slowly 450-600 revs/min, high-speed stirred rotating speed is 1200-1500 revs/min, incorporation time 5-10 minutes, so
Afterwards, then polyadipate butylene terephthalate is proportionally added into, continues mixing 2-5 minutes, release mixed material；
（3）By the material mixed in double screw extruder extruding pelletization, 110~170 DEG C of extruding pelletization temperature, cuts through plastics
Grain machine-cut as suppresses the whole life cycle design masterbatch of weeds into pellet.
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| CN201711254382.0A CN107936494B (en) | 2017-12-03 | 2017-12-03 | A kind of whole life cycle design masterbatch and preparation method thereof inhibiting weeds |
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| CN107936494B CN107936494B (en) | 2019-10-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115260708A (en) * | 2022-07-19 | 2022-11-01 | 广东茂化研绿色发展有限公司 | Modified carbon black master batch and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496515A (en) * | 2009-03-09 | 2009-08-05 | 张掖市大弓农化有限公司 | Butralin wettable powder |
| CN103497403A (en) * | 2013-09-29 | 2014-01-08 | 广州甘蔗糖业研究所 | Herbicide master batch as well as preparation method and application thereof |
| CN103709778A (en) * | 2013-12-18 | 2014-04-09 | 成都菲斯特化工有限公司 | Carbon black master batch for herbicide-containing plastic mulching films and preparation method thereof |
-
2017
- 2017-12-03 CN CN201711254382.0A patent/CN107936494B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496515A (en) * | 2009-03-09 | 2009-08-05 | 张掖市大弓农化有限公司 | Butralin wettable powder |
| CN103497403A (en) * | 2013-09-29 | 2014-01-08 | 广州甘蔗糖业研究所 | Herbicide master batch as well as preparation method and application thereof |
| CN103709778A (en) * | 2013-12-18 | 2014-04-09 | 成都菲斯特化工有限公司 | Carbon black master batch for herbicide-containing plastic mulching films and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115260708A (en) * | 2022-07-19 | 2022-11-01 | 广东茂化研绿色发展有限公司 | Modified carbon black master batch and preparation method and application thereof |
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