CN106003943B - The preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch - Google Patents

The preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch Download PDF

Info

Publication number
CN106003943B
CN106003943B CN201610333760.3A CN201610333760A CN106003943B CN 106003943 B CN106003943 B CN 106003943B CN 201610333760 A CN201610333760 A CN 201610333760A CN 106003943 B CN106003943 B CN 106003943B
Authority
CN
China
Prior art keywords
parts
layer
extruded
modifying agent
agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610333760.3A
Other languages
Chinese (zh)
Other versions
CN106003943A (en
Inventor
李积迁
陈永弟
杨宏
陈晓江
李建平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN HONGCAI NEW MATERIAL TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN HONGCAI NEW MATERIAL TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN HONGCAI NEW MATERIAL TECHNOLOGY Co Ltd filed Critical SHENZHEN HONGCAI NEW MATERIAL TECHNOLOGY Co Ltd
Priority to CN201610333760.3A priority Critical patent/CN106003943B/en
Publication of CN106003943A publication Critical patent/CN106003943A/en
Application granted granted Critical
Publication of CN106003943B publication Critical patent/CN106003943B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/716—Degradable
    • B32B2307/7163—Biodegradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2410/00—Agriculture-related articles
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
    • 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
    • C08J2433/00—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
    • C08J2433/24—Homopolymers or copolymers of amides or imides
    • C08J2433/26—Homopolymers or copolymers of acrylamide or methacrylamide
    • 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
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • 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
    • C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
    • 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
    • C08L2201/00—Properties
    • C08L2201/14—Gas barrier composition
    • 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
    • C08L2205/03—Polymer mixtures characterised by other features containing three 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
    • C08L2205/03—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

Landscapes

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

Abstract

The present invention provides a kind of preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch.The preparation method of the three-layer co-extruded Biodegradable mulch of the present invention, film is processed by three-layer co-extruded film-blowing process by interior layered material, middle material and outer layer material, by the composite modified technology of material and three-layer co-extruded technology, make Biodegradable mulch that there is excellent barrier property and good vertical/horizontal mechanical property.

Description

The preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch
Technical field
The present invention relates to agricultural film field more particularly to a kind of preparation methods and three of three-layer co-extruded Biodegradable mulch Layer co-extrusion Biodegradable mulch.
Background technology
Plastics agricultural mulching has soil moisture conservation and heating effect to soil, carrys out increase harvest for agricultural belt therewith, in China It is known as agriculturally collecting the third time revolution after chemical fertilizer and seed.China is the annual country most using polyethylene ground film, The crops such as tobacco, cotton, corn, vegetables are used primarily in, polyethylene ground film to agricultural belt while enormous benefits are carried out, to life State environment brings serious " white pollution ", and according to incompletely statistics, Some Regions, Xinjiang polyethylene ground film residual quantity reaches 10- 25kg, and continuing to increase, polyethylene ground film degradation time is up to more than 200 years, and annual a large amount of residual films stay in earth's surface and soil In, it can neither be degraded by microorganisms, also not absorbed by crops, be less useful for clearing up and recycle, cause crop production reduction and soil Earth structure is hardened, endangers ecological environment.
In presently disclosed patent, photosensitizer is mainly introduced in polyethylene, under the action of ultraviolet light, by one section Time becomes fragment, and mainly polyethylene molecular chain is broken, but cannot be degradable, is accumulated over a long period and is remained in the soil, causes Crop production reduction and " white pollution ".
Whole life cycle design material be after plastic film mulch under field conditions (factors) in 60-180 days complete biodegradable be water, dioxy Change carbon and small-molecule substance etc., soil will not be polluted, and product can be used as Crop fertilizer after degradation, be easy to crop life It is long, belong to low-carbon, environment-friendly materials.The Biodegradable mulch in the whole world mainly has up to tens kinds at present：Biodegradable equal polyester, such as Hydroxy fatty acid (salt) polymer (PHAs), polylactic acid (PLA), polycaprolactone (PCL)；Biodegradable Copolyester, such as poly- fourth Succinate adipate (PBS), poly- (succinic acid-butanediol ester is total to tetramethylene adipate) (PBSA)；Or with polysaccharide structures Natural products, such as thermoplastic starch (TPS), cellulose acetate.But there are various poor mechanical properties, guarantors for biodegradation material The problems such as water, uncontrollable bad and degradation time of soil moisture conservation property.
Invention content
The object of the present invention is to provide a kind of preparation methods of three-layer co-extruded Biodegradable mulch, are compounded by material Modified and three-layer co-extruded technology makes Biodegradable mulch have excellent barrier property and good vertical/horizontal mechanical property.
The present invention also aims to, a kind of three-layer co-extruded Biodegradable mulch is provided, have excellent barrier property and Good vertical/horizontal mechanical property.
To achieve the above object, present invention firstly provides a kind of preparation method of three-layer co-extruded Biodegradable mulch, by interior Layered material, middle material and outer layer material are processed into film, the interior layered material, middle material and outer layer material point by three-layer co-extruded film-blowing process It is not correspondingly formed internal layer, middle layer and the outer layer of three-layer co-extruded Biodegradable mulch；
The interior layered material includes following raw material components and quality proportioning：40-60 parts of PBAT resins, 20-30 parts of non-grain starch, Non- 6-10 parts of grain starch modifying agent, 1-3 parts of herbicide, 1-3 parts of age resister；
The middle material includes following raw material components and quality proportioning：60-80 parts of PPC resins, are protected 10-20 parts of modifying agent 1-4 parts of aqua, 0.3-1 parts of crosslinking agent, 0.5-2 parts of adhesive；
The outer layer material includes following raw material components and quality proportioning：35-60 parts of PBAT resins, 10-25 parts of PLA resin, 0.5-1 parts of chain extender, plasticizer are 3-8 parts, 1-3 parts of age resister, 0.5-2 parts of melt strength modifying agent.
In the interior layered material, the non-grain starch is：One kind in the tapioca that sieves with 100 mesh sieve, sweet potato starch；
The non-grain starch modifying agent is：The mixture of one or both of polyacrylonitrile, phosphate, formamide.
In the interior layered material, the herbicide is：One kind in fluofazone ester, fomesafen, cinidon-ethyl or two The mixture of kind；
The age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio dipropyl One or more mixtures in sour double lauryl, ESCALOL 567s.
In the middle material, the modifying agent is：Two kinds in ethanedioic acid, butyl ester of epoxy fatty acid, calcium stearate mixed Close object；
The water-retaining agent is：One kind in polyacrylamide, starch grafted polyacrylic sodium；
The crosslinking agent is：Cumyl peroxide, -2,5 di-t-butyl hexane peroxide of 2,5- dimethyl, isocyanates In one kind；
Described adhesive is：Ethylene acrylic acid co polymer, ethylene-methyl acrylate-glycidyl methacrylate In one kind.
In the outer layer material, the chain extender is：One kind in polyoxypropylene diamine, dimethoxy benzidine；
The plasticizer is：The mixing of one or both of polyethylene glycol 400, tributyl citrate, epoxidized soybean oil Object；
The age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio dipropyl One or more mixtures in sour double lauryl, ESCALOL 567s；
The melt strength modifying agent is：One kind in poly- terephthalate p-phenylenediamine, methyl methacrylate.
In the three-layer co-extruded film-blowing process, the draw ratio for using three-layer co-extruded inflation film manufacturing machine is 28-32:1st, blow-up ratio is 1.5-3:1。
The present invention also provides a kind of three-layer co-extruded Biodegradable mulch, including middle layer and respectively positioned at middle layer both sides Internal layer and outer layer, the internal layer, middle layer and outer layer are correspondingly formed respectively by interior layered material, middle material and outer layer material respectively；
The interior layered material includes following raw material components and quality proportioning：40-60 parts of PBAT resins, 20-30 parts of non-grain starch, Non- 6-10 parts of grain starch modifying agent, 1-3 parts of herbicide, 1-3 parts of age resister；
The middle material includes following raw material components and quality proportioning：60-80 parts of PPC resins, are protected 10-20 parts of modifying agent 1-4 parts of aqua, 0.3-1 parts of crosslinking agent, 0.5-2 parts of adhesive；
The outer layer material includes following raw material components and quality proportioning：35-60 parts of PBAT resins, 10-25 parts of PLA resin, 0.5-1 parts of chain extender, plasticizer are 3-8 parts, 1-3 parts of age resister, 0.5-2 parts of melt strength modifying agent.
In the interior layered material, the non-grain starch is：One kind in tapioca, sweet potato starch, sieves with 100 mesh sieve；
The non-grain starch modifying agent is：The mixture of one or both of polyacrylonitrile, phosphate, formamide；
The herbicide is：The mixture of one or both of fluofazone ester, fomesafen, cinidon-ethyl；
The age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio dipropyl One or more mixtures in sour double lauryl, ESCALOL 567s.
In the middle material, the modifying agent is：Two kinds in ethanedioic acid, butyl ester of epoxy fatty acid, calcium stearate mixed Close object；
The water-retaining agent is：One kind in polyacrylamide, starch grafted polyacrylic sodium；
The crosslinking agent is：Cumyl peroxide, -2,5 di-t-butyl hexane peroxide of 2,5- dimethyl, isocyanates In one kind；
Described adhesive is：Ethylene acrylic acid co polymer, ethylene-methyl acrylate-glycidyl methacrylate In one kind.
In the outer layer material, the chain extender is：One kind in polyoxypropylene diamine, dimethoxy benzidine；
The plasticizer is：The mixing of one or both of polyethylene glycol 400, tributyl citrate, epoxidized soybean oil Object；
The age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio dipropyl One or more mixtures in sour double lauryl, ESCALOL 567s；
The melt strength modifying agent is：One kind in poly- terephthalate p-phenylenediamine, methyl methacrylate.
Beneficial effects of the present invention：The preparation method of the three-layer co-extruded Biodegradable mulch of the present invention, by interior layered material, middle level Material and outer layer material are processed into film by three-layer co-extruded film-blowing process, pass through the composite modified and three-layer co-extruded technology of material so that Biodegradable mulch has excellent blocking oxygen, water vapo(u)r transmission energy and good vertical/horizontal mechanical property.The present invention's Three-layer co-extruded Biodegradable mulch has excellent barrier property and good vertical/horizontal mechanical property.
Description of the drawings
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with the detailed of the present invention Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
In attached drawing,
Fig. 1 is the schematic diagram of the preparation method of the three-layer co-extruded Biodegradable mulch of the present invention.
Specific embodiment
The technological means and its effect taken further to illustrate the present invention, below in conjunction with the preferred implementation of the present invention Example and its attached drawing are described in detail.
Referring to Fig. 1, the preparation method of three-layer co-extruded Biodegradable mulch provided by the invention, by interior layered material, middle material Film is processed by three-layer co-extruded film-blowing process with outer layer material, the interior layered material, middle material and outer layer material are correspondingly formed respectively Internal layer, middle layer and the outer layer of three-layer co-extruded Biodegradable mulch；
The interior layered material includes following raw material components and quality proportioning：40-60 parts of PBAT resins, 20-30 parts of non-grain starch, Non- 6-10 parts of grain starch modifying agent, 1-3 parts of herbicide, 1-3 parts of age resister；
The middle material includes following raw material components and quality proportioning：60-80 parts of PPC resins, are protected 10-20 parts of modifying agent 1-4 parts of aqua, 0.3-1 parts of crosslinking agent, 0.5-2 parts of adhesive；
The outer layer material includes following raw material components and quality proportioning：35-60 parts of PBAT resins, 10-25 parts of PLA resin, 0.5-1 parts of chain extender, plasticizer are 3-8 parts, 1-3 parts of age resister, 0.5-2 parts of melt strength modifying agent.
Specifically, the specific technical solution of the three-layer co-extruded film-blowing process is as follows：
After interior layered material, middle material and outer layer material are measured according to recipe requirements, it is separately added into the material of three-layer co-extruded inflation film manufacturing machine In bucket, the three-layer co-extruded inflation film manufacturing machine for having pressed predetermined temperature heating is opened, interior layered material, middle material and outer layer material are by centainly adding It melts, shear at hot temperature, film is made at triple extrusion die head mouth, then by inflation, cooling, sizing, be made three layers Co-extrusion Biodegradable mulch, winds finally by wrap-up, it is preferred that the three-layer co-extruded inflation film manufacturing machine draw ratio is 28-32: 1st, blow-up ratio 1.5-3:1.
Specifically, the non-grain starch is：One kind in tapioca, sweet potato starch, starch mesh number are 100 mesh, i.e. institute It is the starch sieved with 100 mesh sieve to state non-grain starch.
Specifically, the non-grain starch modifying agent is：One or both of polyacrylonitrile, phosphate, formamide mix Close object.
Specifically, the herbicide is：One or both of fluofazone ester, fomesafen, cinidon-ethyl mix Close object.
Specifically, the age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, One or more mixtures in thio-2 acid double lauryl, ESCALOL 567s.
Specifically, the modifying agent is：Two kinds of mixture in ethanedioic acid, butyl ester of epoxy fatty acid, calcium stearate.
Specifically, the water-retaining agent is：One kind in polyacrylamide, starch grafted polyacrylic sodium.
Specifically, the crosslinking agent is：Cumyl peroxide, -2,5 di-t-butyl hexane peroxide of 2,5- dimethyl, One kind in isocyanates.
Specifically, described adhesive is：Ethylene acrylic acid co polymer, ethylene-methyl acrylate-Glycidyl methacrylate One kind in glyceride.
Specifically, the chain extender is：One kind in polyoxypropylene diamine, dimethoxy benzidine.
Specifically, the plasticizer is：One or both of polyethylene glycol 400, tributyl citrate, epoxidized soybean oil Mixture.
Specifically, the melt strength modifying agent is：One in poly- terephthalate p-phenylenediamine, methyl methacrylate Kind.
The preparation method of the three-layer co-extruded Biodegradable mulch of the present invention, passes through three by interior layered material, middle material and outer layer material Layer coextrusion film blowing technique is processed into film, passes through the composite modified and three-layer co-extruded technology of material so that Biodegradable mulch has Excellent blocking oxygen, water vapo(u)r transmission energy and good vertical/horizontal mechanical property.
The present invention also provides a kind of three-layer co-extruded Biodegradable mulch, including middle layer and respectively positioned at interlayer film two The internal layer and outer layer of side, the internal layer, middle layer and outer layer correspond to shape respectively by interior layered material, middle material and outer layer material respectively Into；
Specifically, the non-grain starch is：One kind in tapioca, sweet potato starch, starch mesh number are 100 mesh, i.e. institute It is the starch sieved with 100 mesh sieve to state non-grain starch.
Specifically, the non-grain starch modifying agent is：One or both of polyacrylonitrile, phosphate, formamide mix Close object.
Specifically, the herbicide is：One or both of fluofazone ester, fomesafen, cinidon-ethyl mix Close object.
Specifically, the age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, One or more mixtures in thio-2 acid double lauryl, ESCALOL 567s.
Specifically, the modifying agent is：Two kinds of mixture in ethanedioic acid, butyl ester of epoxy fatty acid, calcium stearate.
Specifically, the water-retaining agent is：One kind in polyacrylamide, starch grafted polyacrylic sodium.
Specifically, the crosslinking agent is：Cumyl peroxide, -2,5 di-t-butyl hexane peroxide of 2,5- dimethyl, One kind in isocyanates.
Specifically, described adhesive is：Ethylene acrylic acid co polymer, ethylene-methyl acrylate-Glycidyl methacrylate One kind in glyceride.
Specifically, the chain extender is：One kind in polyoxypropylene diamine, dimethoxy benzidine.
Specifically, the plasticizer is：One or both of polyethylene glycol 400, tributyl citrate, epoxidized soybean oil Mixture.
Specifically, the melt strength modifying agent is：Poly- terephthalate p-phenylenediamine, methyl methacrylate.
In conclusion the preparation method of the three-layer co-extruded Biodegradable mulch of the present invention, by interior layered material, middle material and outer layer Material is processed into film by three-layer co-extruded film-blowing process, passes through the composite modified and three-layer co-extruded technology of material so that biodegradable Mulch has excellent blocking oxygen, water vapo(u)r transmission energy and good vertical/horizontal mechanical property.The present invention's is three-layer co-extruded Biodegradable mulch has excellent barrier property and good vertical/horizontal mechanical property.
The above, for those of ordinary skill in the art, can according to the technique and scheme of the present invention and technology Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the appended right of the present invention It is required that protection domain.

Claims (8)

1. a kind of preparation method of three-layer co-extruded Biodegradable mulch, which is characterized in that led to by interior layered material, middle material and outer layer material It crosses three-layer co-extruded film-blowing process and is processed into film, the interior layered material, middle material and outer layer material are correspondingly formed three-layer co-extruded life respectively Internal layer, middle layer and the outer layer of object degradative plastic film；
The interior layered material includes following raw material components and quality proportioning：40-60 parts of PBAT resins, 20-30 parts of non-grain starch, non-grain 6-10 parts of starch modifying agent, 1-3 parts of herbicide, 1-3 parts of age resister；
The middle material includes following raw material components and quality proportioning：60-80 parts of PPC resins, 10-20 parts of modifying agent, water-retaining agent 1-4 parts, 0.3-1 parts of crosslinking agent, 0.5-2 parts of adhesive；
The outer layer material includes following raw material components and quality proportioning：35-60 parts of PBAT resins, 10-25 parts of PLA resin, chain extension 0.5-1 parts of agent, plasticizer are 3-8 parts, 1-3 parts of age resister, 0.5-2 parts of melt strength modifying agent；
In the middle material, the modifying agent is ethanedioic acid and the mixture of butyl ester of epoxy fatty acid；
The water-retaining agent is starch grafted polyacrylic sodium；
The crosslinking agent is cumyl peroxide；
Described adhesive is ethylene-methyl acrylate-glycidyl methacrylate.
2. the preparation method of three-layer co-extruded Biodegradable mulch as described in claim 1, which is characterized in that the interior layered material In, the non-grain starch is：One kind in the tapioca that sieves with 100 mesh sieve, sweet potato starch；
The non-grain starch modifying agent is：The mixture of one or both of polyacrylonitrile, phosphate, formamide.
3. the preparation method of three-layer co-extruded Biodegradable mulch as described in claim 1, which is characterized in that the interior layered material In, the herbicide is：The mixture of one or both of fluofazone ester, fomesafen, cinidon-ethyl；
The age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio-2 acid are double One or more mixtures in lauryl, ESCALOL 567.
4. the preparation method of three-layer co-extruded Biodegradable mulch as described in claim 1, which is characterized in that the outer layer material In, the chain extender is：One kind in polyoxypropylene diamine, dimethoxy benzidine；
The plasticizer is：The mixture of one or both of polyethylene glycol 400, tributyl citrate, epoxidized soybean oil；
The age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio-2 acid are double One or more mixtures in lauryl, ESCALOL 567；
The melt strength modifying agent is：One kind in poly- terephthalate p-phenylenediamine, methyl methacrylate.
5. the preparation method of three-layer co-extruded Biodegradable mulch as described in claim 1, which is characterized in that three-layer co-extruded blown film In technique, the draw ratio for using three-layer co-extruded inflation film manufacturing machine is 28-32:1st, blow-up ratio 1.5-3:1.
6. a kind of three-layer co-extruded Biodegradable mulch, which is characterized in that be located in middle layer both sides including middle layer and respectively Layer and outer layer, the internal layer, middle layer and outer layer are correspondingly formed respectively by interior layered material, middle material and outer layer material respectively；
The interior layered material includes following raw material components and quality proportioning：40-60 parts of PBAT resins, 20-30 parts of non-grain starch, non-grain 6-10 parts of starch modifying agent, 1-3 parts of herbicide, 1-3 parts of age resister；
The middle material includes following raw material components and quality proportioning：60-80 parts of PPC resins, 10-20 parts of modifying agent, water-retaining agent 1-4 parts, 0.3-1 parts of crosslinking agent, 0.5-2 parts of adhesive；
The outer layer material includes following raw material components and quality proportioning：35-60 parts of PBAT resins, 10-25 parts of PLA resin, chain extension 0.5-1 parts of agent, plasticizer are 3-8 parts, 1-3 parts of age resister, 0.5-2 parts of melt strength modifying agent；
In the middle material, the modifying agent is ethanedioic acid and the mixture of butyl ester of epoxy fatty acid；
The water-retaining agent is starch grafted polyacrylic sodium；
The crosslinking agent is cumyl peroxide；
Described adhesive is ethylene-methyl acrylate-glycidyl methacrylate.
7. three-layer co-extruded Biodegradable mulch as claimed in claim 6, which is characterized in that in the interior layered material, the non-grain Starch is：One kind in tapioca, sweet potato starch, sieves with 100 mesh sieve；
The non-grain starch modifying agent is：The mixture of one or both of polyacrylonitrile, phosphate, formamide；
The herbicide is：The mixture of one or both of fluofazone ester, fomesafen, cinidon-ethyl；
The age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio-2 acid are double One or more mixtures in lauryl, ESCALOL 567.
8. three-layer co-extruded Biodegradable mulch as claimed in claim 6, which is characterized in that in the outer layer material, the chain extension Agent is：One kind in polyoxypropylene diamine, dimethoxy benzidine；
The plasticizer is：The mixture of one or both of polyethylene glycol 400, tributyl citrate, epoxidized soybean oil；
The age resister is：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio-2 acid are double One or more mixtures in lauryl, ESCALOL 567；
The melt strength modifying agent is：One kind in poly- terephthalate p-phenylenediamine, methyl methacrylate.
CN201610333760.3A 2016-05-18 2016-05-18 The preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch Active CN106003943B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610333760.3A CN106003943B (en) 2016-05-18 2016-05-18 The preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610333760.3A CN106003943B (en) 2016-05-18 2016-05-18 The preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch

Publications (2)

Publication Number Publication Date
CN106003943A CN106003943A (en) 2016-10-12
CN106003943B true CN106003943B (en) 2018-06-29

Family

ID=57097863

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610333760.3A Active CN106003943B (en) 2016-05-18 2016-05-18 The preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch

Country Status (1)

Country Link
CN (1) CN106003943B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111418420A (en) * 2020-05-12 2020-07-17 合肥佛斯德新材料科技有限公司 Biodegradable mulching film

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107148876A (en) * 2017-04-25 2017-09-12 安徽恒鑫环保新材料有限公司 It is a kind of can be with water conservation and the three-layer co-extruded biodegradable ground cover film of moisturizing
CN108327368B (en) * 2018-01-26 2020-09-29 北京国瑞新源投资有限公司 Three-layer water-retaining environment biodegradable film and preparation method thereof
CN109397809B (en) * 2018-10-29 2021-05-04 昆山金盟塑料薄膜有限公司 Easily degradable composite film and preparation method thereof
CN109485986A (en) * 2018-11-16 2019-03-19 山东隆昌塑业有限公司 A kind of dust-proof mulch that can be cleared up automatically
CN109429841B (en) * 2018-11-16 2021-03-12 山东隆昌塑业有限公司 Degradable mulching film suitable for different environments and manufacturing method thereof
CN109566210B (en) * 2018-12-07 2020-12-22 北京惠林苑生物科技有限公司 Multi-layer composite multifunctional full-biodegradable plastic mulching film and preparation method thereof
CN109937773B (en) * 2019-03-21 2021-10-19 甘肃福雨塑业有限责任公司 High-light-effect environment-friendly weather-resistant silver white three-layer composite mulching film and preparation method thereof
CN109937774B (en) * 2019-03-21 2021-10-19 甘肃福雨塑业有限责任公司 High-light-efficiency environment-friendly weather-resistant silver white black three-layer composite mulching film and preparation method thereof
CN109937772B (en) * 2019-03-21 2021-10-19 甘肃福雨塑业有限责任公司 High-light-effect environment-friendly weather-resistant silver-silver three-layer composite mulching film and preparation method thereof
CN110178609B (en) * 2019-05-24 2021-06-01 兰州鑫银环橡塑制品有限公司 Full-biodegradable mulching film in dry farming agricultural area and preparation method and application thereof
CN110583326B (en) * 2019-09-30 2021-04-23 苏州中达航材料科技有限公司 Three-layer co-extrusion fully-degradable mulching film and production process thereof
CN113881110B (en) * 2020-07-02 2022-11-15 北京工商大学 Full-biodegradable composite film, preparation method and express delivery bag thereof
CN112262695B (en) * 2020-10-24 2022-06-03 山东清田塑工有限公司 Three-layer composite high-barrier controllable full-biodegradable mulching film and preparation method thereof
CN113172975A (en) * 2021-04-06 2021-07-27 温州银润包装有限公司 Multilayer composite co-extrusion film and manufacturing process thereof
CN115302741B (en) * 2022-07-21 2023-05-23 四川大学 Degradable mulching film capable of improving water resistance, heat preservation, soil moisture conservation and mechanical property through lamination and compounding

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1723123A (en) * 2002-12-09 2006-01-18 生物高分子技术公开股份有限公司 Biodegradable multi-layer film
CN102276966A (en) * 2011-08-02 2011-12-14 广州甘蔗糖业研究所 Biodegradable weeding mulching film masterbatch, weeding mulching film and preparation method thereof
CN102875998A (en) * 2012-10-10 2013-01-16 中国科学院化学研究所 Biodegradable material containing aliphatic polycarbonate, and preparation method and application thereof
CN103640290A (en) * 2013-12-13 2014-03-19 山东汇盈新材料科技有限公司 Completely biodegradable composite membrane with high barrier property
CN104691067A (en) * 2015-03-06 2015-06-10 北京工商大学 Biodegradable multilayer material with adjustable gas transmission rate and preparation method and applications thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1723123A (en) * 2002-12-09 2006-01-18 生物高分子技术公开股份有限公司 Biodegradable multi-layer film
CN102276966A (en) * 2011-08-02 2011-12-14 广州甘蔗糖业研究所 Biodegradable weeding mulching film masterbatch, weeding mulching film and preparation method thereof
CN102875998A (en) * 2012-10-10 2013-01-16 中国科学院化学研究所 Biodegradable material containing aliphatic polycarbonate, and preparation method and application thereof
CN103640290A (en) * 2013-12-13 2014-03-19 山东汇盈新材料科技有限公司 Completely biodegradable composite membrane with high barrier property
CN104691067A (en) * 2015-03-06 2015-06-10 北京工商大学 Biodegradable multilayer material with adjustable gas transmission rate and preparation method and applications thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111418420A (en) * 2020-05-12 2020-07-17 合肥佛斯德新材料科技有限公司 Biodegradable mulching film

Also Published As

Publication number Publication date
CN106003943A (en) 2016-10-12

Similar Documents

Publication Publication Date Title
CN106003943B (en) The preparation method of three-layer co-extruded Biodegradable mulch and three-layer co-extruded Biodegradable mulch
CN106221165A (en) A kind of whole life cycle design of high-barrier and preparation method thereof
KR101707934B1 (en) Multicolored Biodegradable Mulching Film for Sweet Potato Cultivation
CN104559087A (en) Controllable bio-based full-degradable mulching film
CN105504363A (en) Starch and plant fiber composite biodegradable polyester film-blowing grade resin and preparation method
KR20140106882A (en) Biodegradable Resin Composition and Biodegradable Mulching Film Using of the Same
CN102942770A (en) Completely-biodegradable agricultural mulching film
CN104985795A (en) Stripe type alternative joint agricultural mulching film and preparing method thereof
CN103992518B (en) Biodegradable packaging material
KR102466854B1 (en) Mulching film manufacturing method
CN102432942A (en) Non-starch biodegradable plastic film
CN106479132B (en) A kind of degradation of plastic film master batch and the preparation method and application thereof
CN102161797B (en) Modified linear low-density polyethylene composite material and preparation method thereof
CN107629304A (en) A kind of bio-based ecological plastic film and preparation method thereof
CN109181012A (en) Plant amylum Biodegradable Materials
CN103183937B (en) A kind of modified polylactic acid composite material and preparation method thereof
CN104945870A (en) All-biodegradable modified polylactic acid film-blowing resin and preparation method thereof
KR102599541B1 (en) Composition for mulching film with improved biodegradability in soil conditions after crop cultivation, manufacturing method thereof, and mulching film prepared therefrom
CN107216491A (en) A kind of preparation method of novel environment friendly high polymer material
CN104861246B (en) A kind of preparation method with barrier degradation plastic laminated film
CN114232126B (en) Full-biodegradation efficient dustproof net and preparation method thereof
CN116589810A (en) Degradable agricultural film and preparation method thereof
CN104945682A (en) Thermoplastic starch based mulching film composite material and method for preparing the same
CN107933041A (en) Environment protection mulch film that can be sowed and preparation method thereof
CN108727642A (en) A kind of waterproof and breathable degradable mulch and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20161012

Assignee: Jiaxing United color new Mstar Technology Ltd

Assignor: SHENZHEN HONGCAI NEW MATERIAL TECHNOLOGY Co.,Ltd.

Contract record no.: X2020440020010

Denomination of invention: Three-layer co-extrusion biodegradable mulch film and preparation method thereof

Granted publication date: 20180629

License type: Common License

Record date: 20200316