CN109694556A - A kind of biodegradable master batch for agricultural film of weeding and preparation method thereof - Google Patents

A kind of biodegradable master batch for agricultural film of weeding and preparation method thereof Download PDF

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Publication number
CN109694556A
CN109694556A CN201811565220.3A CN201811565220A CN109694556A CN 109694556 A CN109694556 A CN 109694556A CN 201811565220 A CN201811565220 A CN 201811565220A CN 109694556 A CN109694556 A CN 109694556A
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China
Prior art keywords
parts
master batch
agricultural film
weeding
biodegradable
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Inventor
施晓旦
郝鲁峰
郑璐
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Shanghai Changfa New Materials Co Ltd
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Shanghai Changfa New Materials Co Ltd
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Priority to CN201811565220.3A priority Critical patent/CN109694556A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/002—Methods
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461—Combinations of dissimilar mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/90—Fillers or reinforcements, e.g. fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/90—Fillers or reinforcements, e.g. fibres
    • B29B7/92—Wood chips or wood fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • 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
    • C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
    • 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
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08K13/02—Organic and inorganic ingredients
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C08K5/132—Phenols containing keto groups, e.g. benzophenones
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/524—Esters of phosphorous acids, e.g. of H3PO3

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Catching Or Destruction (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to a kind of biodegradable agricultural film weeding master batch, constituent is as follows according to parts by weight: 30~90 parts of degradation material；10~70 parts of papermaking waste；0~30 part of starch；0~30 part of inorganic mineral；0.5~15 part of auxiliary agent.Further relate to a kind of preparation method of biodegradable agricultural film weeding master batch.It the advantage is that, papermaking waste, starch, inorganic mineral are added in degradation material, considerably reduce the production cost of biodegradable agricultural film weeding master batch；Papermaking waste is efficiently used, environmental pressure is reduced；The weeding master batch of composite papermaking waste has low-transmittance, high resistant photosensitiveness, so that the biodegradable agricultural film of preparation is herbicidal good, weeds can be blocked to contact with light, make weeds that can not carry out photosynthesis.

Description

A kind of biodegradable master batch for agricultural film of weeding and preparation method thereof
Technical field
The present invention relates to degradable composite material technical field more particularly to a kind of biodegradable master batch for agricultural film of weeding And preparation method thereof.
Background technique
It is counted according to FAO (Food and Agriculture Organization of the United Nation), the whole world is every year because Weed infestation is averaged the underproduction 10~15%.Due to long-term, big Area, excess, continuous use herbicide, make weeds develop drug resistance, also, the toxic side effect of herbicide residue all the more highlights, Injure crops；Organochlorine, the organic phosphorus pollution in soil and water body, in soil microbial population and crops made At fatal harm, and resistance weed is increasingly stronger, increasingly severe to the destruction of the contaminated soil quality of environment.
Agricultural film used at present is mostly used high molecular polythene (polyethylene, PE), can achieve certain guarantor Warm moistening effect, but mulch is disposable, degradation time are up to 200 or three hundred years, easily broken in farmland and are mingled with rear A large amount of sandy soil, are difficult to recycle.They are difficult to degrade in nature.These mulch fragments can form yin in the soil Interlayer makes the constricted flows such as water, gas, the fertilizer in soil, causes soil texture hardened, seriously endangers ecological environment, causes white Pollution.Inexpensively, the weeding degradable mulch of non-environmental-pollution replaces petroleum-based traditional mulch to become the hot spot of research.Due to The higher cost of degradation material limits its reasonable commercial use.
Chinese patent CN103709778A discloses a kind of Herbicide film black masterbatch and preparation method, is granulated charcoal by parts by weight Black 40~60 parts, 40~60 parts of resin compositions.Wherein resin melt mass flow rate is 2~50g/10min, for solving charcoal High dispersive problem of the black masterbatch under high carbon black concentration.The Herbicide film black masterbatch of the invention is non-degradable material, pollutes ring Border also needs manually to collect old film, further increases cost.
Pulp and paper industry will isolate about 1.4 hundred million tons of celluloses from plant every year, while obtain a large amount of papermaking Waste by-products, but so far, the papermaking waste more than 95% is burnt up after being still directly discharged into rivers or concentration, seldom To effective use.
Therefore, needing one kind, cost is relatively low and degradable, the agricultural film of composite papermaking waste.
Summary of the invention
The purpose of the present invention is aiming at the shortcomings in the prior art, provide a kind of biodegradable agricultural film weeding master batch and its Preparation method.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of biodegradable master batch for agricultural film of weeding, constituent are as follows according to parts by weight:
30~90 parts of degradation material
10~70 parts of papermaking waste
0~30 part of starch
0~30 part of inorganic mineral
0.5~15 part of auxiliary agent.
Preferably, the biodegradable master batch for agricultural film of the weeding, constituent are as follows according to parts by weight:
40~80 parts of degradation material
20~60 parts of papermaking waste
5~25 parts of starch
5~25 parts of inorganic mineral
2~12 parts of auxiliary agent.
Preferably, the biodegradable master batch for agricultural film of the weeding, constituent are as follows according to parts by weight:
40~80 parts of degradation material
30~50 parts of papermaking waste
5~25 parts of starch
5~25 parts of inorganic mineral
5~10 parts of auxiliary agent.
Preferably, the degradation material is poly terephthalic acid/tetramethylene adipate, polylactic acid, poly- hydroxy aliphatic One of acid esters, lined polymethyl ethylene carbonate or a variety of mixtures.
Preferably, the degradation material is poly terephthalic acid/tetramethylene adipate, polylactic acid, poly- hydroxy aliphatic One of acid esters or a variety of mixtures.
Preferably, the degradation material is the one or two of poly terephthalic acid/tetramethylene adipate, polylactic acid Mixture.
Preferably, the starch is tapioca, cornstarch, potato starch, cationic modified starch, anion change One of property starch or a variety of mixtures.
Preferably, the inorganic mineral is one of calcium carbonate, kaolin, talcum powder, diatomite or a variety of mixed Close object.
Preferably, the papermaking waste be rotten slurry, screenings, wood skin, pulping waste liquor extract, siliceous white clay one kind or A variety of mixtures.
Preferably, the partial size of the papermaking waste is 50~5000 mesh.
Preferably, the partial size of the papermaking waste is 500~3000 mesh.
Preferably, the partial size of the papermaking waste is 1000~2000 mesh.
Preferably, the constituent of the auxiliary agent is as follows according to parts by weight:
0.5~10 part of plasticizer
0.5~10 part of light stabilizer
0.5~10 part of heat stabilizer
0.5~10 part of antioxidant.
Preferably, the constituent of the auxiliary agent is as follows according to parts by weight:
1~8 part of plasticizer
1~8 part of light stabilizer
1~8 part of heat stabilizer
1~8 part of antioxidant.
Preferably, the constituent of the auxiliary agent is as follows according to parts by weight:
2~6 parts of plasticizer
2~6 parts of light stabilizer
2~6 parts of heat stabilizer
2~6 parts of antioxidant.
Preferably, the plasticizer is citrate, and the light stabilizer is O-hydroxyl-diphenyl ketone, the heat stabilizer For zinc stearate, the antioxidant is phosphite ester.
The present invention also provides a kind of preparation methods of the biodegradable master batch for agricultural film of weeding, comprising the following steps:
Degradation material, starch, papermaking waste, inorganic mineral and auxiliary agent are proportionally added into high speed and mix by step 1 Heat is mixed in conjunction machine, obtains just mixed material；
The just mixed material is added to extruding pelletization in double screw extruder by step 2, obtains the biodegradable agriculture of weeding Film master batch.
Preferably, in the step 1, degradation material, starch, papermaking waste, inorganic mineral and auxiliary agent are pressed Mixed 10~the 1000min of heat is added into high-speed mixer in ratio, is warming up to 10~180 DEG C, revolving speed is 10~1200rpm.
Preferably, in the step 1, the mixed 50~600min of heat.
Preferably, in the step 1, the mixed 100~300min of heat.
Preferably, in the step 1,30~150 DEG C are warming up to.
Preferably, in the step 1,50~100 DEG C are warming up to.
Preferably, in the step 1, revolving speed is 100~800rpm.
Preferably, in the step 1, revolving speed is 200~400rpm.
Preferably, in the step 2, the condition of extruding pelletization are as follows: the area a Qu Zhiliu temperature of double screw extruder is 70~250 DEG C, the head temperature of double screw extruder is 70~250 DEG C, and revolving speed is 10~1200rpm.
Preferably, in the step 2, the area a Qu Zhiliu temperature of double screw extruder is 100~200 DEG C.
Preferably, in the step 2, the area a Qu Zhiliu temperature of double screw extruder is 110~190 DEG C.
Preferably, in the step 2,120~210 DEG C of the head temperature of double screw extruder.
Preferably, in the step 2,130~190 DEG C of the head temperature of double screw extruder.
Preferably, in the step 2, revolving speed is 50~400rpm.
Preferably, in the step 2, revolving speed is 100~300rpm.
The invention adopts the above technical scheme, compared with prior art, has the following technical effect that
Biodegradable master batch for agricultural film of a kind of weeding of the invention and preparation method thereof, by papermaking waste, starch, nothing Machine minerals are added in degradation material, considerably reduce the production cost of the biodegradable master batch for agricultural film of weeding；Have Effect utilizes papermaking waste, reduces environmental pressure；The weeding master batch of composite papermaking waste has low-transmittance, high resistant photosensitiveness, So that the biodegradable agricultural film of preparation is herbicidal good, weeds can be blocked to contact with light, make weeds that can not carry out photosynthesis.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention Embodiment, those of ordinary skill in the art's every other embodiment obtained without creative labor, It shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.
The present invention is further explained in the light of specific embodiments, but not as the limitation of the invention.
Embodiment 1
A kind of biodegradable master batch for agricultural film of weeding of the present embodiment, is made of the raw material of following parts by weight:
Polyadipate/butylene terephthalate (poly (butyleneadipate-co-terephthalate), PBAT) 60 parts, 10 parts of cornstarch, 20 parts of pulping waste liquor extract, 10 parts of calcium carbonate, 2 parts of citrate, o-hydroxy benzophenone 1 part of ketone, 1 part of zinc stearate, 2 parts of phosphite ester.
The biodegradable master batch for agricultural film of the weeding of the present embodiment the preparation method is as follows:
Step 1, pulping waste liquor extract is dry, crushing, sieving, the pulping waste liquor for obtaining 4500~5000 mesh extract Object；
By 60 parts of PBAT, 10 parts of cornstarch, 20 parts of pulping waste liquor extracts, 10 parts of calcium carbonate, 2 parts of citrates, 1 part O-hydroxyl-diphenyl ketone, 1 part of zinc stearate and 2 parts of phosphite esters are proportionally added into high speed blender, temperature be 180 DEG C, Under conditions of revolving speed 1200rpm, 1000min is mixed, obtains just mixed object；
First mixed object is added to extruding pelletization in double screw extruder by step 2, an area Qu Zhiliu of double screw extruder Temperature is 250 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, and the head temperature of double screw extruder is 250 DEG C, revolving speed 1200rpm obtains the biodegradable master batch for agricultural film of weeding.
Embodiment 2
A kind of biodegradable master batch for agricultural film of weeding of the present embodiment, is made of the raw material of following parts by weight:
60 parts of polyadipate/butylene terephthalate (PBAT), 10 parts of tapioca, 20 parts of screenings, 10 parts of kaolin, 2 parts of citrate, 1 part of O-hydroxyl-diphenyl ketone, 1 part of zinc stearate, 2 parts of phosphite ester.
The biodegradable master batch for agricultural film of the weeding of the present embodiment the preparation method is as follows:
Step 1, screenings is dry, crushing, sieving, obtain the screenings of 50~100 mesh；
By 60 parts of PBAT, 10 portions of tapiocas, 20 parts of screenings, 10 parts of kaolin, 2 parts of citrates, 1 part of adjacent hydroxyl hexichol Ketone, 1 part of zinc stearate and 2 parts of phosphite esters are proportionally added into high speed blender, are 10 DEG C, revolving speed 10rpm in temperature Under the conditions of, 10min is mixed, just mixed object is obtained；
First mixed object is added to extruding pelletization in double screw extruder by step 2, an area Qu Zhiliu of double screw extruder Temperature is respectively 70 DEG C, 70 DEG C, 70 DEG C, 70 DEG C, 70 DEG C, 70 DEG C, and the head temperature of double screw extruder is 70 DEG C, and revolving speed is 10rpm obtains the biodegradable master batch for agricultural film of weeding.
Embodiment 3
A kind of biodegradable master batch for agricultural film of weeding of the present embodiment, is made of the raw material of following parts by weight: gathering oneself 50 parts of diacid/butylene terephthalate (PBAT), 10 parts of polylactic acid (polylactic acid, PLA), 10 parts of tapioca, 20 parts of pulping waste liquor extract, 10 parts of kaolin, 2 parts of citrate, 1 part of O-hydroxyl-diphenyl ketone, 1 part of zinc stearate, phosphorous 2 parts of acid esters.
The biodegradable master batch for agricultural film of the weeding of the present embodiment the preparation method is as follows:
Step 1, pulping waste liquor extract is dry, crushing, sieving, obtain the pulping waste liquor extract of 400~500 mesh；
By 50 parts of PBAT, 10 parts of PLA, 10 portions of tapiocas, 20 parts of pulping waste liquor extracts, 10 parts of kaolin, 2 portions of lemons Acid esters, 1 part of O-hydroxyl-diphenyl ketone, 1 part of zinc stearate and 2 parts of phosphite esters are proportionally added into high speed blender, in temperature Under conditions of 80 DEG C, revolving speed 200rpm, 80min is mixed, obtains just mixed object；
First mixed object is added to extruding pelletization in double screw extruder by step 2, an area Qu Zhiliu of double screw extruder Temperature is respectively 190 DEG C, 195 DEG C, 200 DEG C, 205 DEG C, 205 DEG C, 205 DEG C, and the head temperature of double screw extruder is 205 DEG C, Revolving speed is 200rpm, obtains the biodegradable master batch for agricultural film of weeding.
Embodiment 4
A kind of biodegradable master batch for agricultural film of weeding of the present embodiment, is made of the raw material of following parts by weight: gathering oneself 50 parts of diacid/butylene terephthalate (PBAT), lined polymethyl ethylene carbonate (poly propylene carbonate, PPC) 10 parts, 10 parts of potato starch, 20 parts of pulping waste liquor extract, 10 parts of talcum powder, 3 parts of citrate, adjacent hydroxyl hexichol 1 part of ketone, 2 parts of zinc stearate, 2 parts of phosphite ester.
The biodegradable master batch for agricultural film of the weeding of the present embodiment the preparation method is as follows:
Step 1, pulping waste liquor extract is dry, crushing, sieving, obtain the pulping waste liquor extract of 200~300 mesh；
By 50 parts of PBAT, 10 parts of PPC, 10 parts of potato starch, 20 parts of pulping waste liquor extracts, 10 parts of talcum powder, 3 parts of lemons Lemon acid esters, 1 part of O-hydroxyl-diphenyl ketone, 2 parts of zinc stearates and 2 parts of phosphite esters are proportionally added into high speed blender, in temperature Degree is 100 DEG C, under conditions of revolving speed 300rpm, mixes 100min, obtains just mixed object；
First mixed object is added to extruding pelletization in double screw extruder by step 2, an area Qu Zhiliu of double screw extruder Temperature is respectively 180 DEG C, 185 DEG C, 180 DEG C, 185 DEG C, 185 DEG C, 185 DEG C, and the head temperature of double screw extruder is 185 DEG C, Revolving speed is 300rpm, obtains the biodegradable master batch for agricultural film of weeding.
Embodiment 5
A kind of biodegradable master batch for agricultural film of weeding of the present embodiment, is made of the raw material of following parts by weight: gathering oneself 55 parts of diacid/butylene terephthalate (PBAT), 5 parts of polyhydroxyalkanoate (polyhydroxyalkanoates, PHA), 10 parts of potato starch, rotten 20 parts of slurry, 10 parts of diatomite, 3 parts of citrate, 1 part of O-hydroxyl-diphenyl ketone, 2 parts of zinc stearate, 2 parts of phosphite ester.
The biodegradable master batch for agricultural film of the weeding of the present embodiment the preparation method is as follows:
Step 1, dry, crushing, sieving by corruption slurry obtain the rotten slurry of 200~300 mesh；
By 55 parts of PBAT, 5 parts of PHA, 10 parts of potato starch, 20 parts of rotten slurries, 10 parts of diatomite, 3 parts of citrates, 1 part O-hydroxyl-diphenyl ketone, 2 parts of zinc stearates and 2 parts of phosphite esters are proportionally added into high speed blender, temperature be 110 DEG C, Under conditions of revolving speed 250rpm, 120min is mixed, obtains just mixed object；
First mixed object is added to extruding pelletization in double screw extruder by step 2, an area Qu Zhiliu of double screw extruder Temperature is respectively 180 DEG C, 185 DEG C, 180 DEG C, 185 DEG C, 185 DEG C, 185 DEG C, and the head temperature of double screw extruder is 185 DEG C, Revolving speed is 350rpm, obtains the biodegradable master batch for agricultural film of weeding.
Embodiment 6
A kind of biodegradable master batch for agricultural film of weeding of the present embodiment, is made of the raw material of following parts by weight: gathering oneself 55 parts of diacid/butylene terephthalate (PBAT), 5 parts of cornstarch, 5 parts of potato starch, 25 parts of pulping waste liquor extract, 10 parts of calcium carbonate, 2 parts of citrate, 1 part of O-hydroxyl-diphenyl ketone, 1 part of zinc stearate, 2 parts of phosphite ester.
The biodegradable master batch for agricultural film of the weeding of the present embodiment the preparation method is as follows:
Step 1, pulping waste liquor extract is dry, crushing, sieving, the pulping waste liquor for obtaining 1000~2000 mesh extract Object；
By 55 parts of PBAT, 5 parts of cornstarch, 5 parts of potato starch, 25 parts of pulping waste liquor extracts, 10 parts of calcium carbonate, 2 Part citrate, 1 part of O-hydroxyl-diphenyl ketone, 1 part of zinc stearate and 2 parts of phosphite esters are proportionally added into high speed blender, Under conditions of temperature is 80 DEG C, revolving speed 200rpm, 80min is mixed, obtains just mixed object；
First mixed object is added to extruding pelletization in double screw extruder by step 2, an area Qu Zhiliu of double screw extruder Temperature is respectively 190 DEG C, 195 DEG C, 200 DEG C, 205 DEG C, 205 DEG C, 205 DEG C, and the head temperature of double screw extruder is 205 DEG C, Revolving speed is 200rpm, obtains the biodegradable master batch for agricultural film of weeding.
Comparative example 1
The present embodiment is conventional biodegradable master batch for agricultural film, is made of the raw material of following parts by weight:
60 parts of polyadipate/butylene terephthalate (PBAT), 10 parts of cornstarch, 20 parts of polylactic acid (PLA), carbonic acid 10 parts of calcium, 2 parts of citrate, 1 part of O-hydroxyl-diphenyl ketone, 1 part of zinc stearate, 2 parts of phosphite ester.
The biodegradable master batch for agricultural film of the weeding of the present embodiment the preparation method is as follows:
Step 1, by 60 parts of PBAT, 10 parts of cornstarch, 20 parts of PLA, 10 parts of calcium carbonate, 2 parts of citrates, 1 part of adjacent hydroxyl Base benzophenone, 1 part of zinc stearate and 2 parts of phosphite esters are proportionally added into high speed blender, are 80 DEG C, revolving speed in temperature Under conditions of 200rpm, 80min is mixed, obtains just mixed object；
First mixed object is added to extruding pelletization in double screw extruder by step 2, an area Qu Zhiliu of double screw extruder Temperature is respectively 190 DEG C, 195 DEG C, 200 DEG C, 205 DEG C, 205 DEG C, 205 DEG C, and the head temperature of double screw extruder is 205 DEG C, Revolving speed is 200rpm, obtains master batch.
Comparative example 2
The present embodiment is conventional biodegradable master batch for agricultural film, is made of the raw material of following parts by weight:
50 parts of polyadipate/butylene terephthalate (PBAT), 20 parts of potato starch, 20 parts of polylactic acid (PLA), height Ridge soil 10 parts, 2 parts of citrate, 1 part of O-hydroxyl-diphenyl ketone, 1 part of zinc stearate, 2 parts of phosphite ester.
The biodegradable master batch for agricultural film of the weeding of the present embodiment the preparation method is as follows:
Step 1, by 50 parts of PBAT, 20 parts of potato starch, 20 parts of PLA, 10 parts of kaolin, 2 parts of citrates, 1 part of neighbour Dihydroxy benaophenonel, 1 part of zinc stearate and 2 parts of phosphite esters are proportionally added into high speed blender, are 100 DEG C, turns in temperature Under conditions of fast 300rpm, 100min is mixed, obtains just mixed object；
First mixed object is added to extruding pelletization in double screw extruder by step 2, an area Qu Zhiliu of double screw extruder Temperature is respectively 190 DEG C, 195 DEG C, 200 DEG C, 205 DEG C, 205 DEG C, 200 DEG C, and the head temperature of double screw extruder is 205 DEG C, Revolving speed is 300rpm, obtains master batch.
After carrying out injection molding to Examples 1 to 6 and comparative example 1~2, according to GB/T1040.2-2006 " plastic tensile Can measurement " and GB/T2410-2008 " measurement of transparent plastic light transmittance and mist degree " to Examples 1 to 3 and comparative example 1 progress Detection, performance are as shown in the table.
As seen from the above table, after introducing papermaking waste, the every mechanical property and light-proofness of weeding master batch are superior to routine Master batch.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model It encloses, to those skilled in the art, should can appreciate that and all replace with being equal made by present specification It changes and obviously changes obtained scheme, should all be included within the scope of the present invention.

Claims (10)

1. a kind of biodegradable master batch for agricultural film of weeding, which is characterized in that its constituent is as follows according to parts by weight:
30~90 parts of degradation material
10~70 parts of papermaking waste
0~30 part of starch
0~30 part of inorganic mineral
0.5~15 part of auxiliary agent.
2. the biodegradable master batch for agricultural film of weeding according to claim 1, which is characterized in that the degradation material is One of poly terephthalic acid/tetramethylene adipate, polylactic acid, polyhydroxyalkanoate, lined polymethyl ethylene carbonate or A variety of mixtures.
3. the biodegradable master batch for agricultural film of weeding according to claim 1, which is characterized in that the starch is para arrowroot One of powder, cornstarch, potato starch, cationic modified starch, anion-modified starch or a variety of mixtures.
4. the biodegradable master batch for agricultural film of weeding according to claim 1, which is characterized in that the inorganic mineral is One of calcium carbonate, kaolin, talcum powder, diatomite or a variety of mixtures.
5. the biodegradable master batch for agricultural film of weeding according to claim 1, which is characterized in that the papermaking waste is Rotten slurry, screenings, wood skin, pulping waste liquor extract, siliceous white clay one or more mixtures, the grain of the papermaking waste Diameter is 50~5000 mesh.
6. the biodegradable master batch for agricultural film of weeding according to claim 1, which is characterized in that the composition of the auxiliary agent at Divide as follows according to parts by weight:
0.5~10 part of plasticizer
0.5~10 part of light stabilizer
0.5~10 part of heat stabilizer
0.5~10 part of antioxidant.
7. the biodegradable master batch for agricultural film of weeding according to claim 6, which is characterized in that the plasticizer is lemon Acid esters, the light stabilizer are O-hydroxyl-diphenyl ketone, and the heat stabilizer is zinc stearate, and the antioxidant is phosphorous acid Ester.
8. a kind of preparation method of the biodegradable master batch for agricultural film of weeding, which comprises the following steps:
Degradation material, starch, papermaking waste, inorganic mineral and auxiliary agent are proportionally added into high-speed mixer by step 1 Middle heat is mixed, obtains just mixed material；
The just mixed material is added to extruding pelletization in double screw extruder by step 2, is obtained the biodegradable agricultural film of weeding and is used Master batch.
9. the preparation method of the biodegradable master batch for agricultural film of weeding according to claim 8, which is characterized in that described In step 1, degradation material, starch, papermaking waste, inorganic mineral and auxiliary agent are proportionally added into high-speed mixer Mixed 10~the 1000min of heat is warming up to 10~180 DEG C, and revolving speed is 10~1200rpm.
10. the preparation method of the biodegradable master batch for agricultural film of weeding according to claim 8, which is characterized in that in institute It states in step 2, the condition of extruding pelletization are as follows: temperature is 70~250 DEG C, and revolving speed is 10~1200rpm.
CN201811565220.3A 2018-12-20 2018-12-20 A kind of biodegradable master batch for agricultural film of weeding and preparation method thereof Pending CN109694556A (en)

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EP3998311A4 (en) * 2019-07-12 2023-07-19 Shanghai Changfa New Materials Co., Ltd. Biodegradable product and preparation method therefor
CN111087775A (en) * 2019-12-25 2020-05-01 上海昶法新材料有限公司 Biodegradable composite material, preparation method and biodegradable container bottom plate
CN111117177A (en) * 2019-12-27 2020-05-08 上海昶法新材料有限公司 Biodegradable urinal incense box funnel and preparation method thereof
CN111825961A (en) * 2020-06-24 2020-10-27 上海昶法新材料有限公司 Biodegradable material, raw material composition thereof, and preparation method and application thereof
CN111849129A (en) * 2020-06-24 2020-10-30 上海昶法新材料有限公司 Biodegradable material, raw material composition thereof, and preparation method and application thereof
WO2021258760A1 (en) * 2020-06-24 2021-12-30 上海昶法新材料有限公司 Biodegradable material, and raw material composition, preparation method, and application of biodegradable material
CN113524829A (en) * 2021-03-29 2021-10-22 上海昶法新材料有限公司 Full-degradable weeding mulching film and preparation method thereof
CN113278262A (en) * 2021-03-30 2021-08-20 上海昶法新材料有限公司 Silver black double-color biodegradable agricultural film and preparation method thereof
CN113308936A (en) * 2021-05-26 2021-08-27 六盘水师范学院 Preparation method of natural mineral fiber/plant fiber degradable agricultural mulching film
CN113308936B (en) * 2021-05-26 2022-07-08 六盘水师范学院 Preparation method of natural mineral fiber/plant fiber degradable agricultural mulching film
CN115160740A (en) * 2022-06-10 2022-10-11 上海昶法新材料有限公司 Bio-based fully-degradable controllable agricultural film and preparation method thereof

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Application publication date: 20190430