CN113234258A - Biodegradable agricultural mulching film and production process thereof - Google Patents
Biodegradable agricultural mulching film and production process thereof Download PDFInfo
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- CN113234258A CN113234258A CN202110611808.3A CN202110611808A CN113234258A CN 113234258 A CN113234258 A CN 113234258A CN 202110611808 A CN202110611808 A CN 202110611808A CN 113234258 A CN113234258 A CN 113234258A
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- 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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
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- 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
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- 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
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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- 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
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- 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
- C08J2433/04—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
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- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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- Manufacturing & Machinery (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses a biodegradable agricultural mulching film which is prepared from the following raw materials in parts by weight: 30-40 parts of corn starch, 30-40 parts of Polyhydroxyalkanoate (PHA), 15-20 parts of polylactic acid, 15-20 parts of chitosan, 5-10 parts of plasticizer, 2-5 parts of stabilizer, 2-5 parts of adhesive, 10-20 parts of glycerol, 5-10 parts of acrylic resin film forming agent and 15-20 parts of humus concentrated solution; according to the biodegradable agricultural mulching film, during mixing and plasticizing, glycerol is added into a raw material mixture, the water retention property of the glycerol is moistened, the water is retained to a certain extent, nutrient substances are supplemented to a certain extent by adding a humus concentrated solution, the soil is subjected to auxiliary fertilizer retention, and when various raw materials are mixed, step-by-step adding and stirring are carried out, granules with large water content and causing balling of the raw materials are sieved, crushed and dried, so that the product quality defects caused by uneven mixing of the raw materials are reduced, and the uniform quality of all parts of the mulching film is ensured.
Description
Technical Field
The invention relates to the field of agricultural mulching film production, relates to a biodegradable agricultural mulching film, and particularly relates to a biodegradable agricultural mulching film and a production process thereof.
Background
The degradable agricultural mulching film is a degradable mulching film, the degradation principle is that degradable biological substances are doped into plastic components to degrade the mulching film, but the degradable mulching film is not completely degraded, so that large plastic blocks are degraded into small plastic blocks, the small plastic blocks still remain in soil, the original technology is improved at the present stage, degradable thermoplastic starch and degradable Polyhydroxyalkanoate (PHA) are used as master batches to prepare the biodegradable agricultural mulching film, the final degradation products are carbon dioxide, water and other pollution-free compounds, and the pollution of the residual plastic of the original degradable mulching film to the soil is avoided;
however, the existing biodegradable agricultural mulching film has the defects of easy water absorption and permeation and poor water retention performance due to higher starch content of the master batch; secondly, when the existing biodegradable agricultural mulching film is produced, the mulching film cannot assist in fertilizer conservation on soil; secondly, when the existing biodegradable agricultural mulching film is produced, the raw materials are not uniformly mixed, so that the produced mulching film has different quality, and the use of the product is influenced.
Disclosure of Invention
The invention aims to provide a biodegradable agricultural mulching film, which solves the problems that the existing biodegradable agricultural mulching film is easy to absorb water and permeate water and poor in water retention performance due to the high starch content of a master batch; secondly, when the existing biodegradable agricultural mulching film is produced, the mulching film cannot assist in fertilizer conservation on soil; secondly, when the existing biodegradable agricultural mulching film is produced, the raw materials are not uniformly mixed, so that the produced mulching film has different quality and the use of the product is influenced; according to the biodegradable agricultural mulching film, during mixing and plasticizing, glycerol is added into a raw material mixture for producing the biodegradable agricultural mulching film, and the water absorption rate of corn starch in the mulching film is reduced by utilizing the characteristics of moistening and water retention of the glycerol, and meanwhile, the water permeability of water in soil penetrating through the biodegradable agricultural mulching film during evaporation is reduced, so that the water is retained in the soil to a certain degree; by adding the humic acid concentrated solution, after the mulching film is put into use, nutrient substances contained in the humic acid concentrated solution slowly permeate into the soil from the mulching film under the stimulation of rainwater and other external conditions, and the nutrient substances are supplemented to a certain extent to assist in fertilizer preservation of the soil; through add the stirring step by step when each raw materials mixes to smash the processing of drying again after sieving the great granule that leads to the raw materials balling up of water content, guarantee to be used for producing each raw materials misce bene of biodegradable agricultural plastic film, reduce because of the uneven product quality flaw that brings of raw materials misce bene, ensure the quality homogeneous everywhere of plastic film.
The purpose of the invention can be realized by the following technical scheme:
a biodegradable agricultural mulching film is composed of the following raw materials in parts by weight: 30-40 parts of corn starch, 30-40 parts of Polyhydroxyalkanoate (PHA), 15-20 parts of polylactic acid, 15-20 parts of chitosan, 5-10 parts of plasticizer, 2-5 parts of stabilizer, 2-5 parts of adhesive, 10-20 parts of glycerol, 5-10 parts of acrylic resin film forming agent and 15-20 parts of humus concentrated solution;
a production process of a biodegradable agricultural mulching film specifically comprises the following steps:
the method comprises the following steps: 30-40 parts of corn starch and 30-40 parts of Polyhydroxyalkanoate (PHA) are put into a stirrer to be mixed and stirred uniformly to prepare a master batch;
step two: sequentially adding 15-20 parts of polylactic acid and 15-20 parts of chitosan into the master batch, and uniformly stirring again to prepare a master batch mixture;
step three: putting the master batch mixture obtained in the step two into a sieving machine for sieving, screening out the nodulated particles, crushing the nodulated particles, putting the crushed nodulated particles into a dryer for drying, putting the dried material into the master batch mixture, and uniformly stirring;
step four: sequentially adding 5-10 parts of acrylic resin film-forming agent and 15-20 parts of humic substance concentrated solution into the master batch mixture, and uniformly stirring to obtain a raw material mixture;
step five: putting the raw material mixture obtained in the fourth step, 5-10 parts of plasticizer, 2-5 parts of stabilizer, 2-5 parts of adhesive and 10-20 parts of glycerol into a mixing plasticator for mixing and plastification;
step six: putting the raw materials subjected to mixing and plasticizing in the fifth step into a film blowing machine to blow out to obtain a biodegradable agricultural mulching film, and then taking the film to perform quality detection;
step seven: and after the quality is detected to be qualified, the biodegradable agricultural mulching film prepared in the step six is coiled by a lap former, packaged and warehoused.
Further, in the first step, the mixing ratio of the corn starch and the Polyhydroxyalkanoate (PHA) is 1: 1, the rotating speed of the stirrer is 800r/min, and the stirring time is 30 min.
Further, in the second step, the third step and the fourth step, the rotating speed of the stirrer is 500r/min, and the stirring time is 10 min.
Further, in the third step, the drying temperature of the dryer is 50 ℃, and the drying time is 30 min.
Further, in the sixth step, the cooling height set when the film blowing machine blows out the mulching film is not lower than 8 meters, and the cooling mode is natural air cooling.
The invention has the beneficial effects that:
1. compared with the traditional biodegradable agricultural mulching film, the biodegradable agricultural mulching film disclosed by the invention has the advantages that during mixing and plasticizing, glycerol is added into a raw material mixture for producing the biodegradable agricultural mulching film, the water absorption rate of corn starch in the mulching film is reduced by utilizing the characteristics of moistening and water retention of the glycerol, the water permeability of water in soil penetrating through the biodegradable agricultural mulching film during evaporation is reduced, and the water retention is carried out on the soil to a certain degree;
2. by adding the humic acid concentrated solution, after the mulching film is put into use, nutrient substances contained in the humic acid concentrated solution slowly permeate into the soil from the mulching film under the stimulation of rainwater and other external conditions, and the nutrient substances are supplemented to a certain extent to assist in fertilizer preservation of the soil;
3. through add the stirring step by step when each raw materials mixes to smash the processing of drying again after sieving the great granule that leads to the raw materials balling up of water content, guarantee to be used for producing each raw materials misce bene of biodegradable agricultural plastic film, reduce because of the uneven product quality flaw that brings of raw materials misce bene, ensure the quality homogeneous everywhere of plastic film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A biodegradable agricultural mulching film is composed of the following raw materials in parts by weight: 30-40 parts of corn starch, 30-40 parts of Polyhydroxyalkanoate (PHA), 15-20 parts of polylactic acid, 15-20 parts of chitosan, 5-10 parts of plasticizer, 2-5 parts of stabilizer, 2-5 parts of adhesive, 10-20 parts of glycerol, 5-10 parts of acrylic resin film forming agent and 15-20 parts of humus concentrated solution;
a production process of a biodegradable agricultural mulching film specifically comprises the following steps:
the method comprises the following steps: 30-40 parts of corn starch and 30-40 parts of Polyhydroxyalkanoate (PHA) are put into a stirrer to be mixed and stirred uniformly to prepare a master batch;
step two: sequentially adding 15-20 parts of polylactic acid and 15-20 parts of chitosan into the master batch, and uniformly stirring again to prepare a master batch mixture;
step three: putting the master batch mixture obtained in the step two into a sieving machine for sieving, screening out the nodulated particles, crushing the nodulated particles, putting the crushed nodulated particles into a dryer for drying, putting the dried material into the master batch mixture, and uniformly stirring;
step four: sequentially adding 5-10 parts of acrylic resin film-forming agent and 15-20 parts of humic substance concentrated solution into the master batch mixture, and uniformly stirring to obtain a raw material mixture;
step five: putting the raw material mixture obtained in the fourth step, 5-10 parts of plasticizer, 2-5 parts of stabilizer, 2-5 parts of adhesive and 10-20 parts of glycerol into a mixing plasticator for mixing and plastification;
step six: putting the raw materials subjected to mixing and plasticizing in the fifth step into a film blowing machine to blow out to obtain a biodegradable agricultural mulching film, and then taking the film to perform quality detection;
step seven: and after the quality is detected to be qualified, the biodegradable agricultural mulching film prepared in the step six is coiled by a lap former, packaged and warehoused.
In the first step, the mixing ratio of the corn starch and the Polyhydroxyalkanoate (PHA) is 1: 1, the rotating speed of the stirrer is 800r/min, and the stirring time is 30 min.
In the second step, the third step and the fourth step, the rotating speed of the stirrer is 500r/min, and the stirring time is 10 min.
In the third step, the drying temperature of the dryer is 50 ℃, and the drying time is 30 min.
And step six, the cooling height set when the film blowing machine blows out the mulching film is not lower than 8 meters, and the cooling mode is natural air cooling.
Compared with the traditional biodegradable agricultural mulching film, the biodegradable agricultural mulching film disclosed by the invention has the advantages that during mixing and plasticizing, glycerol is added into a raw material mixture for producing the biodegradable agricultural mulching film, the water absorption rate of corn starch in the mulching film is reduced by utilizing the characteristics of moistening and water retention of the glycerol, the water permeability of water in soil penetrating through the biodegradable agricultural mulching film during evaporation is reduced, and the water retention is carried out on the soil to a certain degree; by adding the humic acid concentrated solution, after the mulching film is put into use, nutrient substances contained in the humic acid concentrated solution slowly permeate into the soil from the mulching film under the stimulation of rainwater and other external conditions, and the nutrient substances are supplemented to a certain extent to assist in fertilizer preservation of the soil; through add the stirring step by step when each raw materials mixes to smash the processing of drying again after sieving the great granule that leads to the raw materials balling up of water content, guarantee to be used for producing each raw materials misce bene of biodegradable agricultural plastic film, reduce because of the uneven product quality flaw that brings of raw materials misce bene, ensure the quality homogeneous everywhere of plastic film.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (6)
1. A biodegradable agricultural mulching film is characterized in that: the biodegradable agricultural mulching film is composed of the following raw materials in parts by weight: 30-40 parts of corn starch, 30-40 parts of Polyhydroxyalkanoate (PHA), 15-20 parts of polylactic acid, 15-20 parts of chitosan, 5-10 parts of plasticizer, 2-5 parts of stabilizer, 2-5 parts of adhesive, 10-20 parts of glycerol, 5-10 parts of acrylic resin film-forming agent and 15-20 parts of humus concentrated solution.
2. A process for the production of a biodegradable agricultural mulch film according to claim 1 wherein the process comprises in particular the steps of:
the method comprises the following steps: 30-40 parts of corn starch and 30-40 parts of Polyhydroxyalkanoate (PHA) are put into a stirrer to be mixed and stirred uniformly to prepare a master batch;
step two: sequentially adding 15-20 parts of polylactic acid and 15-20 parts of chitosan into the master batch, and uniformly stirring again to prepare a master batch mixture;
step three: putting the master batch mixture obtained in the step two into a sieving machine for sieving, screening out the nodulated particles, crushing the nodulated particles, putting the crushed nodulated particles into a dryer for drying, putting the dried material into the master batch mixture, and uniformly stirring;
step four: sequentially adding 5-10 parts of acrylic resin film-forming agent and 15-20 parts of humic substance concentrated solution into the master batch mixture, and uniformly stirring to obtain a raw material mixture;
step five: putting the raw material mixture obtained in the fourth step, 5-10 parts of plasticizer, 2-5 parts of stabilizer, 2-5 parts of adhesive and 10-20 parts of glycerol into a mixing plasticator for mixing and plastification;
step six: putting the raw materials subjected to mixing and plasticizing in the fifth step into a film blowing machine to blow out to obtain a biodegradable agricultural mulching film, and then taking the film to perform quality detection;
step seven: and after the quality is detected to be qualified, the biodegradable agricultural mulching film prepared in the step six is coiled by a lap former, packaged and warehoused.
3. The process for producing a biodegradable agricultural mulching film according to claim 2, wherein: in the first step, the mixing ratio of the corn starch and the Polyhydroxyalkanoate (PHA) is 1: 1, the rotating speed of the stirrer is 800r/min, and the stirring time is 30 min.
4. The process for producing a biodegradable agricultural mulching film according to claim 2, wherein: in the second step, the third step and the fourth step, the rotating speed of the stirrer is 500r/min, and the stirring time is 10 min.
5. The process for producing a biodegradable agricultural mulching film according to claim 2, wherein: in the third step, the drying temperature of the dryer is 50 ℃, and the drying time is 30 min.
6. The process for producing a biodegradable agricultural mulching film according to claim 2, wherein: and in the sixth step, the cooling height set when the film blowing machine blows out the mulching film is not lower than 8 meters, and the cooling mode is natural air cooling.
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| CN202110611808.3A CN113234258A (en) | 2021-06-02 | 2021-06-02 | Biodegradable agricultural mulching film and production process thereof |
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| CN202110611808.3A CN113234258A (en) | 2021-06-02 | 2021-06-02 | Biodegradable agricultural mulching film and production process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023118528A1 (en) * | 2021-12-23 | 2023-06-29 | L'oreal | Cosmetic composition comprising a polyhydroxyalkanoate copolymer bearing a(n) (un)saturated hydrocarbon-based chain and a polysaccharide |
| WO2023118526A1 (en) * | 2021-12-23 | 2023-06-29 | L'oreal | Cosmetic composition comprising a polyhydroxyalkanoate copolymer bearing a (un)saturated hydrocarbon-based chain and a hydrocarbon-based polymer |
| WO2023118467A1 (en) * | 2021-12-23 | 2023-06-29 | L'oreal | Cosmetic composition comprising a polyhydroxyalkanoate copolymer bearing a(n) (un)saturated hydrocarbon-based chain and a crystallizable fatty substance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243850A (en) * | 1999-06-28 | 2000-02-09 | 吉林大学 | Degradable agricultural ground-covering film |
| CN1651495A (en) * | 2005-01-05 | 2005-08-10 | 常州智思应用薄膜有限公司 | Fully biodegradable mulch film for tobacco and its preparation method |
| CN102329435A (en) * | 2011-07-23 | 2012-01-25 | 佛山市衡龙科技有限公司 | Composite fully degradable agricultural mulching film material and preparation process thereof |
| CN104109361A (en) * | 2014-08-01 | 2014-10-22 | 新疆蓝山屯河化工股份有限公司 | Low-cost biodegradable film and preparation method thereof |
| CN106117619A (en) * | 2016-06-23 | 2016-11-16 | 桐城市华猫软膜有限公司 | A kind of production technology of degradable agricultural film |
| CN110016217A (en) * | 2019-04-30 | 2019-07-16 | 封金财 | A kind of preparation method of degradable agricultural composite plastic mulch |
-
2021
- 2021-06-02 CN CN202110611808.3A patent/CN113234258A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243850A (en) * | 1999-06-28 | 2000-02-09 | 吉林大学 | Degradable agricultural ground-covering film |
| CN1651495A (en) * | 2005-01-05 | 2005-08-10 | 常州智思应用薄膜有限公司 | Fully biodegradable mulch film for tobacco and its preparation method |
| CN102329435A (en) * | 2011-07-23 | 2012-01-25 | 佛山市衡龙科技有限公司 | Composite fully degradable agricultural mulching film material and preparation process thereof |
| CN104109361A (en) * | 2014-08-01 | 2014-10-22 | 新疆蓝山屯河化工股份有限公司 | Low-cost biodegradable film and preparation method thereof |
| CN106117619A (en) * | 2016-06-23 | 2016-11-16 | 桐城市华猫软膜有限公司 | A kind of production technology of degradable agricultural film |
| CN110016217A (en) * | 2019-04-30 | 2019-07-16 | 封金财 | A kind of preparation method of degradable agricultural composite plastic mulch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023118528A1 (en) * | 2021-12-23 | 2023-06-29 | L'oreal | Cosmetic composition comprising a polyhydroxyalkanoate copolymer bearing a(n) (un)saturated hydrocarbon-based chain and a polysaccharide |
| WO2023118526A1 (en) * | 2021-12-23 | 2023-06-29 | L'oreal | Cosmetic composition comprising a polyhydroxyalkanoate copolymer bearing a (un)saturated hydrocarbon-based chain and a hydrocarbon-based polymer |
| WO2023118467A1 (en) * | 2021-12-23 | 2023-06-29 | L'oreal | Cosmetic composition comprising a polyhydroxyalkanoate copolymer bearing a(n) (un)saturated hydrocarbon-based chain and a crystallizable fatty substance |
| FR3131203A1 (en) * | 2021-12-23 | 2023-06-30 | L'oreal | Cosmetic composition comprising a polyhydroxyalkanoate copolymer with an (un)saturated hydrocarbon chain, and a polysaccharide |
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Application publication date: 20210810 |