CN106117622A - A kind of degradable mulch and preparation method - Google Patents

A kind of degradable mulch and preparation method Download PDF

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Publication number
CN106117622A
CN106117622A CN201610687127.4A CN201610687127A CN106117622A CN 106117622 A CN106117622 A CN 106117622A CN 201610687127 A CN201610687127 A CN 201610687127A CN 106117622 A CN106117622 A CN 106117622A
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parts
preparation
poly
mulch
starch
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陆开珍
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Chuzhou Jiashi Agricultural Technology Co Ltd
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Chuzhou Jiashi Agricultural Technology Co Ltd
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02—Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C08L33/12—Homopolymers or copolymers of methyl methacrylate
    • 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
    • C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2303/02—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
    • C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • 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
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
    • C08J2333/12—Homopolymers or copolymers of methyl methacrylate
    • 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
    • C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

The invention provides a kind of degradable mulch and preparation method, comprise the steps: that (1) described mulch film includes following each component: polyvinyl alcohol, polylactic acid, polycaprolactone, poly-succinic acid fourth diester, starch, Plant fiber, glycerol triacetate, polymethyl methacrylate, filler, light stabilizer；(2) polyvinyl alcohol, polylactic acid, polycaprolactone, poly-succinic acid fourth diester, starch, Plant fiber are joined in reactor according to proportioning, be uniformly mixed；Add glycerol triacetate, polymethyl methacrylate, stirring, react 3 ~ 6h in 150 ~ 180 DEG C；Joining in extruder by above-mentioned reactant mixture and filler, light stabilizer, hot-melt extruded is blow molded, cutting, and packaging obtains described mulch film.Described ground membrane preparation method is simple, and cost is relatively low, degradable, it is to avoid the environmental pollution caused because of residual film, and can reach insulation, the effect of soil moisture conservation in the whole trophophase of crops, has better application value.

Description

A kind of degradable mulch and preparation method
Technical field
The present invention relates to technical field of polymer materials, in particular it relates to a kind of degradable mulch and preparation method.
Background technology
Mulch film has important function in China's agricultural production process, not only has the effect of insulation, moisturizing, fertilizer conservation, and And also there is anti-disease pest, the effect such as waterlogging-resistant of taking precautions against drought, it is possible to promote the growth promoter of crop, improve crop yield, increase and produce effect Benefit.Traditional agricultural mulching is to use vinyon to make, and along with mulch film uses on a large scale, a large amount of mulch film fragments can remain In soil.Under field conditions (factors), traditional vinyon is difficult to decompose, and not only can destroy Soil structure, affects crop raw Grow and cause the underproduction, also can cause Heavy environmental pollution.
But " white pollution " problem that agroecological environment is caused by the residual film of the thing followed is increasingly severe.Make at present Agricultural film make raw material with chemical fibre, its main component is polypropylene, polyethylene, polrvinyl chloride, can field residual decades not Degraded, uses year after year and causes broken film to accumulate on soil plough horizon year by year, causes soil compaction, permeability variation, root growth to be obstructed, The succession crop underproduction.Mulch film raw materials for production acrylic acid etc. is caused to go up additionally, petroleum-based energy is in short supply so that mulch film price and can holding Continuous development problem becomes increasingly conspicuous.The most many reasons make the research and extension of biodegradable mulch film at home and abroad cause pole Big concern.
At present, although there being various degradable mulch on market, but there is poor durability, intensity is the highest, cannot degrade completely Congruence problem.Moreover, mulch film also needs to meet the weather of different geographical, soil environment and planting requirement when using.Cause This, affected by factors such as production technology difficulty, production costs, market still do not had the degradative plastic film of large-scale application produce Product.
Patent CN1445275 proposes one and prepares biodegradable mulch film with polyvinyl alcohol for primary raw material, at the scene After being dissolved in water, it is sprayed on earth's surface, forms thin film, be characterized in that this film is biodegradable, it is to avoid white pollution, but due to poly-second Costly, this mulch film is relatively costly for enol price, and the agricultural suitability is the strongest.
Patent CN1277228A provides a kind of with Colophonium, starch as raw material, adds micro-fertilizer and herbicide, with spray simultaneously The biodegradable black farm mulching made is sprayed at day with fog scene, but film starts fragmentation after 30 days, will drop completely at 60 days Solve, fail to reach crops whole trophophase inside holding, the effect of soil moisture conservation, and raw materials used be all grain and petroleum base Source, this will largely increase the cost of masking.
Therefore, research preparation one can low cost, degradable, and can reach in the whole trophophase of crops insulation, The mulch film of soil moisture conservation effect, significant and using value.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of degradable mulch and preparation method, described Ground membrane preparation method is simple, and cost is relatively low, and gained mulch film is degradable, and can reach insulation in the whole trophophase of crops, protect The mulch film of moisture in the soil effect, significant and using value.
The present invention solves technical problem and adopts the following technical scheme that
The present invention relates to a kind of degradable mulch, including each component of following parts by weight: polyvinyl alcohol 10 ~ 20 parts, polylactic acid 10 ~ 15 parts, polycaprolactone 10 ~ 15 parts, poly-succinic acid fourth diester 10 ~ 15 parts, starch 15 ~ 20 parts, Plant fiber 10 ~ 15 parts, sweet Oil triacetate 5 ~ 10 parts, polymethyl methacrylate 10 ~ 20 parts, filler 20 ~ 30 parts, light stabilizer 1 ~ 5 part.
Preferably, each component of following parts by weight is included described in: polyvinyl alcohol 15 parts, polylactic acid 15 parts, polycaprolactone 12 parts, poly-succinic acid fourth diester 12 parts, starch 20 parts, Plant fiber 12 parts, glycerol triacetate 8 parts, poly-methyl methacrylate Ester 15 parts, filler 25 parts, light stabilizer 3 parts.
The invention still further relates to the preparation method of a kind of degradable mulch, comprise the steps:
(1) polyvinyl alcohol, polylactic acid, polycaprolactone, poly-succinic acid fourth diester, starch, Plant fiber are joined according to proportioning In reactor, it is uniformly mixed；
(2) in reactor, glycerol triacetate, polymethyl methacrylate are added according to proportioning, stirring, anti-in 150 ~ 180 DEG C Answer 3 ~ 6h；
(3) above-mentioned reactant mixture and filler, light stabilizer are joined in extruder according to proportioning, in 170 ~ 180 DEG C of bars Hot-melt extruded blowing under part, cutting, packaging, obtain described mulch film.
Preferably, the speed of agitator in described step (1) is 1500 ~ 2000 revs/min.
Preferably, in described step (2), reaction temperature is 170 DEG C, response time 4h.
Preferably, the extruder in described step (3) is single screw extrusion machine.
Compared with prior art, the present invention has a following beneficial effect:
A kind of degradable mulch of the present invention and preparation method, preparation method is simple, and cost is relatively low, and gained mulch film easily drops Solve, it is to avoid the environmental pollution caused because of residual film, and insulation, the ground of soil moisture conservation effect can be reached in the whole trophophase of crops Film, significant and using value.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.These embodiments are merely to illustrate the present invention and need not In limiting the scope of the present invention.
Embodiment 1:
The present embodiment relates to a kind of degradable mulch and preparation method；
Described mulch film is made up of following component: polyvinyl alcohol 15 parts, polylactic acid 15 parts, polycaprolactone 12 parts, poly-succinic acid fourth Diester 12 parts, starch 20 parts, Plant fiber 12 parts, glycerol triacetate 8 parts, polymethyl methacrylate 15 parts, filler 25 Part, light stabilizer 3 parts.
The preparation process of described mulch film is as follows:
(1) polyvinyl alcohol, polylactic acid, polycaprolactone, poly-succinic acid fourth diester, starch, Plant fiber are joined according to proportioning In reactor, being uniformly mixed, wherein, speed of agitator is 2000 revs/min；
(2) adding glycerol triacetate, polymethyl methacrylate in reactor according to proportioning, stirring, in 170 DEG C of reactions 4h；
(3) above-mentioned reactant mixture and filler, light stabilizer are joined in extruder according to proportioning, under the conditions of 170 DEG C Hot-melt extruded is blow molded, cutting, and packaging obtains described mulch film.
Embodiment 2:
The present embodiment relates to a kind of degradable mulch and preparation method；
Described mulch film is made up of following component: polyvinyl alcohol 10 parts, polylactic acid 10 parts, polycaprolactone 10 parts, poly-succinic acid fourth Diester 10 parts, starch 15 parts, Plant fiber 10 parts, glycerol triacetate 5 parts, polymethyl methacrylate 10 parts, filler 20 Part, light stabilizer 1 part.
The preparation process of described mulch film is as follows:
(1) polyvinyl alcohol, polylactic acid, polycaprolactone, poly-succinic acid fourth diester, starch, Plant fiber are joined according to proportioning In reactor, being uniformly mixed, wherein, speed of agitator is 1500 revs/min；
(2) adding glycerol triacetate, polymethyl methacrylate in reactor according to proportioning, stirring, in 180 DEG C of reactions 3h；
(3) above-mentioned reactant mixture and filler, light stabilizer are joined in extruder according to proportioning, under the conditions of 170 DEG C Hot-melt extruded is blow molded, cutting, and packaging obtains described mulch film.
Embodiment 3:
The present embodiment relates to a kind of degradable mulch and preparation method；
Described mulch film is made up of following component: polyvinyl alcohol 20 parts, polylactic acid 15 parts, polycaprolactone 15 parts, poly-succinic acid fourth Diester 15 parts, starch 20 parts, Plant fiber 15 parts, glycerol triacetate 10 parts, polymethyl methacrylate 20 parts, filler 30 Part, light stabilizer 5 parts.
The preparation process of described mulch film is as follows:
(1) polyvinyl alcohol, polylactic acid, polycaprolactone, poly-succinic acid fourth diester, starch, Plant fiber are joined according to proportioning In reactor, being uniformly mixed, wherein, speed of agitator is 2000 revs/min；
(2) adding glycerol triacetate, polymethyl methacrylate in reactor according to proportioning, stirring, in 150 DEG C of reactions 6h；
(3) above-mentioned reactant mixture and filler, light stabilizer are joined in extruder according to proportioning, under the conditions of 180 DEG C Hot-melt extruded is blow molded, cutting, and packaging obtains described mulch film.
Degradable mulch of the present invention and preparation method, preparation method is simple, and cost is relatively low, and gained mulch film easily drops Solve, it is to avoid the environmental pollution caused because of residual film, and insulation, the ground of soil moisture conservation effect can be reached in the whole trophophase of crops Film, significant and using value.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned Particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims, this not shadow Ring the flesh and blood of the present invention.

Claims (6)

1. a degradable mulch, it is characterised in that: include each component of following parts by weight: polyvinyl alcohol 10 ~ 20 parts, poly-breast Acid 10 ~ 15 parts, polycaprolactone 10 ~ 15 parts, poly-succinic acid fourth diester 10 ~ 15 parts, starch 15 ~ 20 parts, Plant fiber 10 ~ 15 parts, Glycerol triacetate 5 ~ 10 parts, polymethyl methacrylate 10 ~ 20 parts, filler 20 ~ 30 parts, light stabilizer 1 ~ 5 part.
Degradable mulch the most according to claim 1, it is characterised in that include each component of following parts by weight described in:: Polyvinyl alcohol 15 parts, polylactic acid 15 parts, polycaprolactone 12 parts, poly-succinic acid fourth diester 12 parts, starch 20 parts, Plant fiber 12 Part, glycerol triacetate 8 parts, polymethyl methacrylate 15 parts, filler 25 parts, light stabilizer 3 parts.
3. the preparation method according to any one described degradable mulch of claim 1 ~ 2, it is characterised in that: include as follows Step:
(1) polyvinyl alcohol, polylactic acid, polycaprolactone, poly-succinic acid fourth diester, starch, Plant fiber are joined according to proportioning In reactor, it is uniformly mixed；
(2) in reactor, glycerol triacetate, polymethyl methacrylate are added according to proportioning, stirring, anti-in 150 ~ 180 DEG C Answer 3 ~ 6h；
(3) above-mentioned reactant mixture and filler, light stabilizer are joined in extruder according to proportioning, in 170 ~ 180 DEG C of bars Hot-melt extruded blowing under part, cutting, packaging, obtain described mulch film.
The preparation method of degradable mulch the most according to claim 3, it is characterised in that: the stirring in described step (1) Rotating speed is 1500 ~ 2000 revs/min.
The preparation method of degradable mulch the most according to claim 3, it is characterised in that: reaction temperature in described step (2) Degree is 170 DEG C, response time 4h.
The preparation method of degradable mulch the most according to claim 3, it is characterised in that: the extrusion in described step (3) Machine is single screw extrusion machine.
CN201610687127.4A 2016-08-19 2016-08-19 A kind of degradable mulch and preparation method Withdrawn CN106117622A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106939120A (en) * 2017-04-12 2017-07-11 上海馨星环保科技有限公司 A kind of manufacture method of degradable PLA biological net
CN107141671A (en) * 2017-06-14 2017-09-08 合肥助航生态农业科技有限公司 Farm mulch and its production technology
CN107151410A (en) * 2017-06-12 2017-09-12 太仓雅奥塑业有限公司 A kind of Environment-friendlywater-soluble water-soluble plastics package
CN107163464A (en) * 2017-06-12 2017-09-15 太仓雅奥塑业有限公司 A kind of water-soluble plastic packaging
CN107629428A (en) * 2017-10-26 2018-01-26 桐城市华猫软膜有限公司 A kind of labile environmentally friendly agricultural film
CN108864490A (en) * 2018-06-14 2018-11-23 安徽精良同硕塑膜科技股份有限公司 A kind of high hydrophobicity degradable mulch
CN110218359A (en) * 2019-07-10 2019-09-10 邵熠星 A kind of degradable mulch and preparation method thereof rich in numb Down Fiber element
CN111990012A (en) * 2020-09-08 2020-11-27 湖南湘源金穗智能装备有限公司 Embedded degradation film direct seeding system for crop direct seeding and application
CN114410088A (en) * 2022-01-21 2022-04-29 杭州泽同新材料科技有限公司 Biodegradable mulching film suitable for long-period growth plants

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106939120A (en) * 2017-04-12 2017-07-11 上海馨星环保科技有限公司 A kind of manufacture method of degradable PLA biological net
CN107151410A (en) * 2017-06-12 2017-09-12 太仓雅奥塑业有限公司 A kind of Environment-friendlywater-soluble water-soluble plastics package
CN107163464A (en) * 2017-06-12 2017-09-15 太仓雅奥塑业有限公司 A kind of water-soluble plastic packaging
CN107141671A (en) * 2017-06-14 2017-09-08 合肥助航生态农业科技有限公司 Farm mulch and its production technology
CN107629428A (en) * 2017-10-26 2018-01-26 桐城市华猫软膜有限公司 A kind of labile environmentally friendly agricultural film
CN108864490A (en) * 2018-06-14 2018-11-23 安徽精良同硕塑膜科技股份有限公司 A kind of high hydrophobicity degradable mulch
CN110218359A (en) * 2019-07-10 2019-09-10 邵熠星 A kind of degradable mulch and preparation method thereof rich in numb Down Fiber element
CN111990012A (en) * 2020-09-08 2020-11-27 湖南湘源金穗智能装备有限公司 Embedded degradation film direct seeding system for crop direct seeding and application
CN114410088A (en) * 2022-01-21 2022-04-29 杭州泽同新材料科技有限公司 Biodegradable mulching film suitable for long-period growth plants

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