CN107936494B - A kind of whole life cycle design masterbatch and preparation method thereof inhibiting weeds - Google Patents
A kind of whole life cycle design masterbatch and preparation method thereof inhibiting weeds Download PDFInfo
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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
- 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
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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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
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- 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
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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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 inhibiting weeds is blended by following components proportion and is made: 30-80 parts of polyadipate butylene terephthalate (PBAT) based on parts by weight；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 enters in carbon black internal voids during mixed processing, by carbon-enwrap, thus when blowing mulch, herbicide is not precipitated.
Description
Technical field
The present invention relates to a kind of whole life cycle design masterbatch and preparation method thereof for inhibiting weeds, are mainly used for covering ground
Film can effectively inhibit the growth of weeds, belong to processing of high molecular material and application field.
Background technique
With the development of plastic industry, plastic product purposes is more and more extensive, wherein as the agricultural of crops covering
Plastic film is because having the effects that heat preservation, moisturizing are widely used；But the non-biodegradable of petroleum base resin is made to soil environment
At 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
It poisons 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 material resources；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, release agent composition, using blender by PBAT, PBAT+PPC or PBAT+PLA and herbicide, expansion
Chain agent, release agent after mixing evenly, carry out the material after blending with double screw extruder to squeeze out modified, granulation；Application No. is
95108803.3 patent, a kind of controllable light and biologic degradable herbicidal agricultural mulching, 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%, herbicide 0.08-0.2%.The film is added to herbicide, makes degradable mulch in degradation process, and it is miscellaneous to have control
The raw effect of thick grass；The patent of application number 201510563522.7, a kind of crops controlled degradation desinsection weed eradication complete biodegradable
Mulch is made of the following components, poly- alkyl alkanoic acid rouge 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；Application No. is 201610985359.8 patent, a kind of biodegrade 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% composition, and by ultrasonic treatment, but can not prevent
Loss is precipitated in herbicide.The above patent discovery of comprehensive analysis, herbicide is all to be directly appended in plastics or be made into herbicide
Masterbatch, which is then added in plastics, squeezes out blown film.It is well known that if herbicide and the Compatibility in Plastics being blended were splendid, weeding
Agent will not be precipitated in the plastic, just not have weeding purpose；Herbicide must be incompatible with the plastics being blended, in rainwater and the sun
Herbicide precipitation 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
It is easily precipitated, often weeds do not grow also, and herbicide, which has been precipitated, to be finished or remain little, or even in mulch storage and transportation process
In largely be precipitated so that herbicide concentration is greatly reduced in mulch, do not have herbicidal effect.
Summary of the invention
To solve the above problems, the invention patent utilizes the adsorption function of carbon black, herbicide is mixed into carbon black, is passed through
High-speed stirred mixing, 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 enters in carbon black internal voids during mixed processing, by carbon-enwrap,
Thus when blowing mulch, herbicide is not precipitated.
The degradable master batch is that herbicide is blended in carbon black, and using the suction-operated of carbon black, herbicide is sufficiently adsorbed
In carbon black internal voids, under Biodegradable resin carrier function, it is fabricated to black masterbatch by being granulated, is then added to life
Chequered with black and white mulch is blow molded in object degradative resin；This mulch advantage is in storage and transportational process, and herbicide is due to carbon black
The absorption cladding of internal voids is not in be lost, but in mulch use process, under the action of light and heat, herbicide will
It is slowly precipitated, the droplet as made of earth's surface water evaporation flows to soil surface in film surface everywhere, to play herbicide effect；It is special
It is not with noon solar glare direct projection, herbicide precipitation will be more, have fabulous effect, and the mother to the killing of weeds
Material can complete biodegradable at 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 inhibiting weeds, the masterbatch is by following components
Composition (parts by weight): 30-80 parts of polyadipate butylene terephthalate (PBAT) is blended in proportion；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) is Biodegradable polyester, and molecular weight 5000-30000 is low
The PBAT processing fluidity of molecular weight is good, is used for masterbatch carrier resin.
The carbon black is that the trade mark of Cabot production is M717 carbon black, which has good blackness, easily dispersion, have
The characteristic of excellent adsorption.
The herbicide is bis- (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.
A kind of whole life cycle design masterbatch preparation process for inhibiting weeds of the present invention are as follows:
(1) herbicide solution is prepared: it is mixed with acetone or alcohol solvent and herbicide in 1-1.5:1 ratio, it will
Solid powder herbicide is configured to acetone or alcohol solution；
(2) by carbon black, herbicide solution (is converted into solution proportion by herbicide actual amount to weigh), carbon black dispersion processing
Agent weighs up in proportion, is put into mixed processing in high-speed mixer together, and be warming up to 50-70 DEG C, to guarantee that acetone or alcohol fills
Divide volatilization；High-speed mixer is mixed using variable speed, and speed combines, and mixes slowly 450-600 revs/min, high-speed stirred turns
Speed is 1200-1500 revs/min.Be conducive to carbon black quick adsorption cladding herbicide, incorporation time 5-10 minutes, then, then press
Polyadipate butylene terephthalate is added in ratio, continuess to mix 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, through moulding
It is whole life cycle design masterbatch of the present invention that material pelleter, which is cut into pellet,.
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 sufficiently 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 in storage and transportational process, and herbicide will not due to the absorption cladding of carbon black internal voids
It is lost, but in mulch use process, under the action of light and heat, herbicide will be slowly precipitated, everywhere in film surface
The droplet as made of earth's surface water evaporation flows to soil surface, to play herbicide effect；In particular with noon solar glare
Direct projection, herbicide precipitation will be more, have a fabulous effect to the killing of weeds, and the masterbatch can complete biodegradable at
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 mature, there is practicability and operability.
Specific embodiment
Below with reference to embodiment (masterbatch for preparing different herbicide concentrations and carbon black concentration), the present invention is made further
Illustrate, but is 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 black, described
Herbicide is bis- (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: based on parts by weight, polyadipate butylene terephthalate (PBAT): 40 parts；Carbon black: 30 parts；It removes
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 70 parts of groups of polyadipate butylene terephthalate (PBAT)
At.
Comparative example 2: polyadipate butylene terephthalate (PBAT): 80 parts；Herbicide: 10 parts；Coupling agent: 5 parts, white
Oil: 5 parts.
Embodiment and 2 masterbatch preparation process of comparative example are same as above, twin-screw prilling temperature (DEG C):
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, the two ratio is PBAT:PPC=2:1, and the weight ratio of masterbatch is the 10% of total amount, then in single screw rod
Blown film.
1 preparation method of comparative example be granulated after directly in single screw rod Blown film.
The performance test results such as table 1 is precipitated in embodiment and comparative example mulch under certain condition.
1 degradative plastic film 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
It 168 hours, then takes out and places drying 48 hours at room temperature, weighing calculates mulch weight loss, indicated with percentage, numerical value
Lower explanation is more not easy to be precipitated, on the contrary then be precipitated more serious.
Through plantation peanut test, pesticide is sustained release in mulching film master batch of the invention, and efficacy time is long, same planting conditions
Under, the peanut yield average specific comparative example of embodiment is high by 17%.
The anti-precipitation herbicide energy of mulch of Biodegradable mulch masterbatch of the present invention blow molding it can be seen from the performance test results
Power is superior to comparative example.
Claims (6)
1. a kind of whole life cycle design masterbatch for inhibiting weeds is made of the following components based on parts by weight: polyadipate pair
30-80 parts of terephtha-late (PBAT)；15-35 parts of carbon black；5-25 parts of herbicide；1-10 parts of carbon black dispersion inorganic agent.
2. inhibiting 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. inhibiting the whole life cycle design masterbatch of weeds according to claim 1, it is characterised in that the carbon black is that card is rich
Special M717 carbon black.
4. inhibiting the whole life cycle design masterbatch of weeds according to claim 1, it is characterised in that the herbicide is 4,
Bis- (the isopropylamino) -2- methyl mercapto -1,3,5- triazines of 6- or 2-methyl-4-chlorophenoxyacetic acid.
5. inhibiting 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. inhibiting 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: being mixed with acetone or alcohol solvent and herbicide in 1-1.5:1 ratio, by weeding
Agent is configured to acetone or alcohol solution；
(2) by carbon black, herbicide solution, carbon black dispersion inorganic agent is weighed up in proportion, is put into high-speed mixer together at mixing
Reason, and it is warming up to 50-70 DEG C, to guarantee that acetone or alcohol sufficiently volatilizees；High-speed mixer is mixed using variable speed, speed knot
It closing, mixes slowly 450-600 revs/min, high-speed stirred revolving speed is 1200-1500 revs/min, incorporation time 5-10 minutes, so
Afterwards, then it is proportionally added into polyadipate butylene terephthalate, continuesd to mix 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, cut through plastics
Grain machine-cut is the whole life cycle design masterbatch for inhibiting weeds at pellet.
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| 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 |
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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 |
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Effective date of registration: 20210512 Address after: 255000 room 1815, 18 / F, bonded building, Zibo bonded logistics park, high tech Zone, Zibo City, Shandong Province Patentee after: Shandong Qingjie biodegradable materials Co.,Ltd. Address before: Room 1101, block B, polymer Pioneer Park, 51 Lutai Avenue, high tech Zone, Zibo City, Shandong Province, 255086 Patentee before: SHANDONG TIANYE BIODEGRADABLE NEW MATERIAL TECHNOLOGY Co.,Ltd. |