CN109370036A - A kind of Biodegradable mulch of high-barrier and preparation method thereof - Google Patents
A kind of Biodegradable mulch of high-barrier and preparation method thereof Download PDFInfo
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- CN109370036A CN109370036A CN201811253736.4A CN201811253736A CN109370036A CN 109370036 A CN109370036 A CN 109370036A CN 201811253736 A CN201811253736 A CN 201811253736A CN 109370036 A CN109370036 A CN 109370036A
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
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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
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- 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
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- 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
- C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/132—Phenols containing keto groups, e.g. benzophenones
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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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Abstract
The invention discloses Biodegradable mulch of a kind of high-barrier and preparation method thereof.The Biodegradable mulch of high-barrier is grouped as by the group of following parts by weight: 20 ~ 50 parts of poly (propylene carbonate)；30 ~ 60 parts of linear low density polyethylene；2 ~ 3 parts of 2,4-DihydroxyBenzophenone；2 ~ 2.5 parts of bi-myristoleyl；20 ~ 57 parts of poly 3-hydroxy butyrate-co-3- hydroxycaproic ester；15 ~ 55 parts of butylene terephthalate；13 ~ 32 parts of poly butylene succinate；3 ~ 10 parts of glycidyl acrylate grafted polyethylene；0.5 ~ 1.5 part of hindered amine light stabilizer；0.2 ~ 1.5 part of disulfide group 2-ethyl hexyl ethanoate stannous methide；10 ~ 30 parts of filler；0.2 ~ 1 part of crosslinking agent.The high-barrier Biodegradable mulch that the present invention obtains has good barrier property and biodegradability.
Description
Technical field
The present invention relates to Biodegradable mulch of a kind of high-barrier and preparation method thereof.
Background technique
Currently, performance can be lower than PE film under square one for Biodegradable mulch, wherein with tearing strength and barrier property
It shows most obvious.Conventional solution is to increase the modes such as process procedure to make up drawbacks described above, still by increasing thickness
The mulch obtained by such method is with high costs to be unfavorable for promotion and application.
Summary of the invention
The purpose of the present invention is to provide Biodegradable mulch of a kind of high-barrier and preparation method thereof, this kind of high-barrier
Biodegradable mulch barrier properties are good, tearing strength is high and low in cost.
To achieve the goals above, the technical scheme is to design a kind of Biodegradable mulch of high-barrier, by with
The group of lower parts by weight is grouped as:
20 ~ 50 parts of poly (propylene carbonate)；
30 ~ 60 parts of linear low density polyethylene；
2,4- 2 ~ 3 parts of dihydroxy benaophenonels；
2 ~ 2.5 parts of bi-myristoleyl；
20 ~ 57 parts of poly 3-hydroxy butyrate-co-3- hydroxycaproic ester；
15 ~ 55 parts of butylene terephthalate；
13 ~ 32 parts of poly butylene succinate；
3 ~ 10 parts of glycidyl acrylate grafted polyethylene；
0.5 ~ 1.5 part of hindered amine light stabilizer；
0.2 ~ 1.5 part of disulfide group 2-ethyl hexyl ethanoate stannous methide；
10 ~ 30 parts of filler；
0.2 ~ 1 part of crosslinking agent.
Preferably, the number-average molecular weight of the poly 3-hydroxy butyrate-co-3- hydroxycaproic ester is 45 ~ 800,000.
Preferably, in the poly 3-hydroxy butyrate-co-3- hydroxycaproic ester 3-hydroxybutyrate and 3- hydroxycaproic acid ratio
Example is 72/7 ~ 135/11.
Preferably, the viscosity average molecular weigh of the poly (propylene carbonate) is 10 ~ 150,000.
Preferably, the filler be silica, talcum powder, one or more in calcium carbonate, and packing material size >=3000
Mesh.
A kind of preparation method of the Biodegradable mulch of high-barrier, comprising the following steps:
Step 1: crosslinking agent is added into filler, it is stirred continuously after 25 ~ 30min for use；
Step 2: dry 90 ~ 120min at a temperature of poly (propylene carbonate) is placed on 60 ~ 70 DEG C；By poly 3-hydroxy butyrate-
Co-3- hydroxycaproic ester is stand-by after dry 2.5 ~ 3h at a temperature of being placed on 80 ~ 85 DEG C；
Step 3: above-mentioned poly 3-hydroxy butyrate-co-3- hydroxycaproic ester, poly (propylene carbonate) and linea low density are gathered
Then ethylene mixing, 25 ~ 30min of heating stirring at a temperature of 60 ~ 70 DEG C sequentially add 2,4-DihydroxyBenzophenone, double ten
Four carbon alcohols ester, poly 3-hydroxy butyrate-co-3- hydroxycaproic ester, butylene terephthalate, poly butylene succinate, third
Olefin(e) acid ethylene oxidic ester grafted polyethylene, hindered amine light stabilizer, disulfide group 2-ethyl hexyl ethanoate stannous methide, stirring 5 ~
The filler that is added in step 1 after 10min simultaneously discharges after continuing 5 ~ 10min of stirring；
Step 4: the above-mentioned material mixed, which is delivered into double screw extruder, carries out melt blending, extruder temperature setting
150 ~ 180 DEG C, 50 ~ 150rpm of screw speed, blown film master batch is obtained using vane cooling granulation, for use；
Step 5: above-mentioned blown film master batch is formed a film through multi-layer co-extruded inflation, the Biodegradable mulch of high-barrier is obtained, ground film thickness exists
Between 10 ~ 20 μm.
The advantages and beneficial effects of the present invention are: the high-barrier Biodegradable mulch that the present invention obtains has good resistance
Separating performance and biodegradability.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.Following embodiment is only used for more
Add and clearly demonstrate technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment 1:
The Biodegradable mulch of the high-barrier of the present embodiment with a thickness of 15 μm.
The Biodegradable mulch of high-barrier in the present embodiment, is grouped as by the group of following parts by weight: poly (propylene carbonate) 35
Part；44 parts of linear low density polyethylene；2,4- 2.1 parts of dihydroxy benaophenonels；2.5 parts of bi-myristoleyl；Poly- 3- hydroxyl
33 parts of hydroxycaproic ester of base butyrate-co-3-；50 parts of butylene terephthalate；27 parts of poly butylene succinate；Propylene
5.6 parts of acid glycidyl ester grafted polyethylene；1.3 parts of hindered amine light stabilizer；Disulfide group 2-ethyl hexyl ethanoate stannous methide
0.9 part；28 parts of filler；0.2 part of crosslinking agent.
The preparation method of the Biodegradable mulch of high-barrier in the present embodiment, comprising the following steps: Step 1: to filler
Interior addition crosslinking agent is stirred continuously after 30min for use；
Step 2: dry 120min at a temperature of poly (propylene carbonate) is placed on 70 DEG C；By poly 3-hydroxy butyrate-co-3-
Hydroxycaproic ester is stand-by after dry 3h at a temperature of being placed on 80 DEG C；
Step 3: above-mentioned poly 3-hydroxy butyrate-co-3- hydroxycaproic ester, poly (propylene carbonate) and linea low density are gathered
Then ethylene mixing, heating stirring 30min at a temperature of 60 DEG C sequentially add 2,4-DihydroxyBenzophenone, double ten four carbon alcohols
Ester, poly 3-hydroxy butyrate-co-3- hydroxycaproic ester, butylene terephthalate, poly butylene succinate, acrylic acid contracting
Water glyceride grafted polyethylene, hindered amine light stabilizer, disulfide group 2-ethyl hexyl ethanoate stannous methide add again after stirring 10min
Enter the filler in step 1 and continues to discharge after stirring 10min；
Step 4: the above-mentioned material mixed, which is delivered into double screw extruder, carries out melt blending, extruder temperature setting
180 DEG C, screw speed 150rpm, blown film master batch is obtained using vane cooling granulation, for use；
Step 5: above-mentioned blown film master batch is formed a film through multi-layer co-extruded inflation, the Biodegradable mulch of high-barrier is obtained.
In the present embodiment, the Biodegradable mulch mechanical property and barrier property of high-barrier are as shown in table 1:
1 degradative plastic film performance of table
MD refers to longitudinal direction in table, and TD refers to transverse direction.
Wherein, the number-average molecular weight of poly 3-hydroxy butyrate-co-3- hydroxycaproic ester is 550,000；Poly 3-hydroxy butyrate-
The ratio of 3-hydroxybutyrate and 3- hydroxycaproic acid is 72/7 in co-3- hydroxycaproic ester；The viscosity average molecular weigh of poly (propylene carbonate)
It is 100,000；Filler is silica, talcum powder, one or more in calcium carbonate, and packing material size >=3000 mesh.
Embodiment 2:
The Biodegradable mulch of the high-barrier of the present embodiment with a thickness of 15 μm.
The Biodegradable mulch of high-barrier in the present embodiment, is grouped as by the group of following parts by weight: poly (propylene carbonate) 45
Part；60 parts of linear low density polyethylene；2,4- 2.7 parts of dihydroxy benaophenonels；2.1 parts of bi-myristoleyl；Poly- 3- hydroxyl
49 parts of hydroxycaproic ester of base butyrate-co-3-；45 parts of butylene terephthalate；28 parts of poly butylene succinate；Propylene
7.2 parts of acid glycidyl ester grafted polyethylene；0.8 part of hindered amine light stabilizer；Disulfide group 2-ethyl hexyl ethanoate stannous methide
1.1 part；28 parts of filler；0.5 part of crosslinking agent.
The preparation method of the Biodegradable mulch of high-barrier in the present embodiment, comprising the following steps: Step 1: to filler
Interior addition crosslinking agent is stirred continuously after 30min for use；
Step 2: dry 120min at a temperature of poly (propylene carbonate) is placed on 70 DEG C；By poly 3-hydroxy butyrate-co-3-
Hydroxycaproic ester is stand-by after dry 3h at a temperature of being placed on 80 DEG C；
Step 3: above-mentioned poly 3-hydroxy butyrate-co-3- hydroxycaproic ester, poly (propylene carbonate) and linea low density are gathered
Then ethylene mixing, heating stirring 30min at a temperature of 60 DEG C sequentially add 2,4-DihydroxyBenzophenone, double ten four carbon alcohols
Ester, poly 3-hydroxy butyrate-co-3- hydroxycaproic ester, butylene terephthalate, poly butylene succinate, acrylic acid contracting
Water glyceride grafted polyethylene, hindered amine light stabilizer, disulfide group 2-ethyl hexyl ethanoate stannous methide add again after stirring 10min
Enter the filler in step 1 and continues to discharge after stirring 10min；
Step 4: the above-mentioned material mixed, which is delivered into double screw extruder, carries out melt blending, extruder temperature setting
180 DEG C, screw speed 150rpm, blown film master batch is obtained using vane cooling granulation, for use；
Step 5: above-mentioned blown film master batch is formed a film through multi-layer co-extruded inflation, the Biodegradable mulch of high-barrier is obtained.
In the present embodiment, the Biodegradable mulch mechanical property and barrier property of high-barrier are as shown in table 2:
2 degradative plastic film performance of table
MD refers to longitudinal direction in table, and TD refers to transverse direction.
Wherein, the number-average molecular weight of poly 3-hydroxy butyrate-co-3- hydroxycaproic ester is 600,000；Poly 3-hydroxy butyrate-
The ratio of 3-hydroxybutyrate and 3- hydroxycaproic acid is 135/11 in co-3- hydroxycaproic ester；The viscous equal molecule of poly (propylene carbonate)
Amount is 150,000；Filler is silica, talcum powder, one or more in calcium carbonate, and packing material size >=3000 mesh.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of Biodegradable mulch of high-barrier, which is characterized in that be grouped as by the group of following parts by weight:
20 ~ 50 parts of poly (propylene carbonate)；
30 ~ 60 parts of linear low density polyethylene；
2,4- 2 ~ 3 parts of dihydroxy benaophenonels；
2 ~ 2.5 parts of bi-myristoleyl；
20 ~ 57 parts of poly 3-hydroxy butyrate-co-3- hydroxycaproic ester；
15 ~ 55 parts of butylene terephthalate；
13 ~ 32 parts of poly butylene succinate；
3 ~ 10 parts of glycidyl acrylate grafted polyethylene；
0.5 ~ 1.5 part of hindered amine light stabilizer；
0.2 ~ 1.5 part of disulfide group 2-ethyl hexyl ethanoate stannous methide；
10 ~ 30 parts of filler；
0.2 ~ 1 part of crosslinking agent.
2. a kind of Biodegradable mulch of high-barrier according to claim 1, which is characterized in that by the group of following parts by weight
It is grouped as:
35 parts of poly (propylene carbonate)；
44 parts of linear low density polyethylene；
2,4- 2.1 parts of dihydroxy benaophenonels；
2.5 parts of bi-myristoleyl；
33 parts of poly 3-hydroxy butyrate-co-3- hydroxycaproic ester；
50 parts of butylene terephthalate；
27 parts of poly butylene succinate；
5.6 parts of glycidyl acrylate grafted polyethylene；
1.3 parts of hindered amine light stabilizer；
0.9 part of disulfide group 2-ethyl hexyl ethanoate stannous methide；
28 parts of filler；
0.2 part of crosslinking agent.
3. a kind of Biodegradable mulch of high-barrier according to claim 1, which is characterized in that by the group of following parts by weight
It is grouped as:
45 parts of poly (propylene carbonate)；
60 parts of linear low density polyethylene；
2,4- 2.7 parts of dihydroxy benaophenonels；
2.1 parts of bi-myristoleyl；
49 parts of poly 3-hydroxy butyrate-co-3- hydroxycaproic ester；
45 parts of butylene terephthalate；
28 parts of poly butylene succinate；
7.2 parts of glycidyl acrylate grafted polyethylene；
0.8 part of hindered amine light stabilizer；
1.1 parts of disulfide group 2-ethyl hexyl ethanoate stannous methide；
28 parts of filler；
0.5 part of crosslinking agent.
4. a kind of Biodegradable mulch of high-barrier according to claim 1, which is characterized in that the poly- 3-hydroxybutyrate
The number-average molecular weight of ester-co-3- hydroxycaproic ester is 45 ~ 800,000.
5. a kind of Biodegradable mulch of high-barrier according to claim 1, which is characterized in that the poly- 3-hydroxybutyrate
The ratio of 3-hydroxybutyrate and 3- hydroxycaproic acid is 72/7 ~ 135/11 in ester-co-3- hydroxycaproic ester.
6. a kind of Biodegradable mulch of high-barrier according to claim 1, which is characterized in that the poly (propylene carbonate)
Viscosity average molecular weigh be 10 ~ 150,000.
7. a kind of Biodegradable mulch of high-barrier according to claim 1, which is characterized in that the filler is titanium dioxide
It is silicon, talcum powder, one or more in calcium carbonate, and packing material size >=3000 mesh.
8. a kind of preparation method of the Biodegradable mulch of high-barrier described in claim 1 ~ 6, which is characterized in that including following
Step:
Step 1: crosslinking agent is added into filler, it is stirred continuously after 25 ~ 30min for use；
Step 2: dry 90 ~ 120min at a temperature of poly (propylene carbonate) is placed on 60 ~ 70 DEG C；By poly 3-hydroxy butyrate-
Co-3- hydroxycaproic ester is stand-by after dry 2.5 ~ 3h at a temperature of being placed on 80 ~ 85 DEG C；
Step 3: above-mentioned poly 3-hydroxy butyrate-co-3- hydroxycaproic ester, poly (propylene carbonate) and linea low density are gathered
Then ethylene mixing, 25 ~ 30min of heating stirring at a temperature of 60 ~ 70 DEG C sequentially add 2,4-DihydroxyBenzophenone, double ten
Four carbon alcohols ester, poly 3-hydroxy butyrate-co-3- hydroxycaproic ester, butylene terephthalate, poly butylene succinate, third
Olefin(e) acid ethylene oxidic ester grafted polyethylene, hindered amine light stabilizer, disulfide group 2-ethyl hexyl ethanoate stannous methide, stirring 5 ~
The filler that is added in step 1 after 10min simultaneously discharges after continuing 5 ~ 10min of stirring；
Step 4: the above-mentioned material mixed, which is delivered into double screw extruder, carries out melt blending, extruder temperature setting
150 ~ 180 DEG C, 50 ~ 150rpm of screw speed, blown film master batch is obtained using vane cooling granulation, for use；
Step 5: above-mentioned blown film master batch is formed a film through multi-layer co-extruded inflation, the Biodegradable mulch of high-barrier is obtained.
9. mulch made from a kind of preparation method of the Biodegradable mulch of high-barrier according to claim 7, feature
Be: described ground film thickness is between 10 ~ 20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811253736.4A CN109370036A (en) | 2018-10-26 | 2018-10-26 | A kind of Biodegradable mulch of high-barrier and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811253736.4A CN109370036A (en) | 2018-10-26 | 2018-10-26 | A kind of Biodegradable mulch of high-barrier and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850626A (en) * | 2012-08-30 | 2013-01-02 | 苏州市德莱尔建材科技有限公司 | Degradable mulch film and preparation method thereof |
| US20130004760A1 (en) * | 2011-07-01 | 2013-01-03 | Salvatore Pellingra | Biodegradable moisture barrier film |
| CN104395380A (en) * | 2012-06-27 | 2015-03-04 | 金伯利-克拉克环球有限公司 | Film containing a polyalkylene carbonate |
| CN107722445A (en) * | 2017-11-17 | 2018-02-23 | 广州石之通高分子材料有限公司 | Controllable composite degradation weed removal mulch film and preparation method thereof |
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2018
- 2018-10-26 CN CN201811253736.4A patent/CN109370036A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130004760A1 (en) * | 2011-07-01 | 2013-01-03 | Salvatore Pellingra | Biodegradable moisture barrier film |
| CN104395380A (en) * | 2012-06-27 | 2015-03-04 | 金伯利-克拉克环球有限公司 | Film containing a polyalkylene carbonate |
| CN102850626A (en) * | 2012-08-30 | 2013-01-02 | 苏州市德莱尔建材科技有限公司 | Degradable mulch film and preparation method thereof |
| CN107722445A (en) * | 2017-11-17 | 2018-02-23 | 广州石之通高分子材料有限公司 | Controllable composite degradation weed removal mulch film and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 徐鼐编著: "《通用级聚乳酸的改性与加工成型》", 31 January 2016, 中国科学技术大学出版社 * |
| 洪定一主编: "《塑料工业手册 聚烯烃》", 31 March 1999, 化学工业出版社 * |
| 韩昌泰: "我国棚地膜现状和发展途径", 《塑料科技》 * |
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Application publication date: 20190222 |