CN108587129A - A kind of degradable environment-friendly material and preparation method thereof - Google Patents
A kind of degradable environment-friendly material and preparation method thereof Download PDFInfo
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- CN108587129A CN108587129A CN201810335961.6A CN201810335961A CN108587129A CN 108587129 A CN108587129 A CN 108587129A CN 201810335961 A CN201810335961 A CN 201810335961A CN 108587129 A CN108587129 A CN 108587129A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- 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
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- C—CHEMISTRY; METALLURGY
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- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
A kind of degradable environment-friendly material of present invention offer and preparation method thereof, is prepared by following component：Polylactic acid, Fypro, ethylene ethyl acrylate copolymer, polyethylene wax, maleic anhydride, modified starch, filler, heat stabilizer, smoke suppressant, crosslinking agent, dispersant, lubrication plasticizer and water.Environment-friendly materials prepared by the present invention are degradable, heat distortion temperature is high, and application field is wide, and its high mechanical strength, and processing performance is excellent, and polylactic acid dosage is few so that manufacturing cost greatly reduces.
Description
Technical field
The invention belongs to environment-friendly materials technical fields, and in particular to a kind of degradable environment-friendly material and preparation method thereof.
Background technology
Currently, the day with petroleum resources is becoming tight, environmental pollution become again the most important several big problems of human survival it
One, degradable non-petroleum base high molecular material increasingly obtains the attention of people.Polylactic acid deriving from renewable plant as a kind of
The artificial synthesized high molecular material in goods and materials source possesses fully biodegradable, good machine-shaping ability and excellent power
Performance is learned, as degradation plastic, has been subjected to widely paying close attention to and paying attention to.
A kind of reinforced by composite inorganic material high temperature resistant biology drop is disclosed in Chinese invention patent ZL200610010449.1
The preparation method of master batch is solved, the Biodegradable resin content used is larger, by weight percentage up to 30%~60%, causes
Cost is higher, and more difficult in technique processing, and economic benefit is low；It is disclosed in Chinese invention patent ZL200410061416.0
A kind of Starchlike biological degradatable plastic mother and preparation method thereof, tacky resin parts by weight up to 30~300 parts, content compared with
Height, added cost, and tacky resin graft reaction initiator cumyl peroxide and cumyl hydroperoxide are used, make
MAT'L recycling is difficult；A kind of biodegradable polymer is disclosed in Chinese invention patent ZL03135999.X, with day
Right starch and polylactic acid are raw material, are suitable for agricultural plastic film and packaging material for food, but due to most of Biodegradable resin
Glass transition temperature it is very low (50~70 DEG C) so that the application field of manufactured goods is restricted.
In summary, it is therefore desirable to which a kind of better degradable environment-friendly material improves the deficiencies in the prior art.
Invention content
The object of the present invention is to provide a kind of degradable environment-friendly material and preparation method thereof, environment-friendly materials prepared by the present invention
It is degradable, heat distortion temperature is high, application field is wide, and its high mechanical strength, and processing performance is excellent, and polylactic acid dosage is few, makes
Obtaining manufacturing cost greatly reduces.
The present invention provides the following technical solutions：
A kind of degradable environment-friendly material includes the raw material of following parts by weight：13-18 parts of polylactic acid, 22-28 parts of Fypro,
14-19 parts of ethylene-ethyl acrylate copolymer, 17-22 parts of polyethylene wax, 14-17 parts of maleic anhydride, 18-23 parts of modified starch,
12-22 parts of filler, 5-9 parts of heat stabilizer, 3-7 parts of smoke suppressant, 4-9 parts of crosslinking agent, 8-13 parts of dispersant, lubrication plasticizer 6-12
16-22 parts of part and water.
Preferably, the environment-friendly materials include the raw material of following parts by weight：13-15 parts of polylactic acid, Fypro 22-26
Part, 14-17 parts of ethylene-ethyl acrylate copolymer, 17-20 parts of polyethylene wax, 14-16 parts of maleic anhydride, modified starch 18-21
Part, 15-20 parts of filler, 5-8 parts of heat stabilizer, 5-7 parts of smoke suppressant, 6-9 parts of crosslinking agent, 10-13 parts of dispersant, lubrication plasticizer
9-12 parts and 16-20 parts of water.
Preferably, the environment-friendly materials include the raw material of following parts by weight：15 parts of polylactic acid, 22 parts of Fypro, second
17 parts of alkene-ethyl acrylate copolymer, 20 parts of polyethylene wax, 16 parts of maleic anhydride, 18 parts of modified starch, 18 parts of filler, heat are steady
Determine 18 parts of 8 parts of agent, 5 parts of smoke suppressant, 9 parts of crosslinking agent, 10 parts of dispersant, 12 parts of plasticizer of lubrication and water.
A kind of preparation method of degradable environment-friendly material, including following preparation process：
A, polylactic acid, polyethylene wax, filler and crosslinking agent are mixed, is imported in reaction kettle, the heating reaction 1- at 55-65 DEG C
2h adds Fypro, and 20-30min is stirred under the rotating speed of 120-160r/min, obtains mixture one；
B, modified starch, ethylene-ethyl acrylate copolymer, dispersant and lubrication plasticizer are mixed, is heated at 70-75 DEG C
Gelatinization processing 30-45min is carried out, then is cooled to 40-50 DEG C, thick slurry is made in stirring；
C, it will be imported in batch mixer together with mixture one and slurry, maleic anhydride, heat stabilizer and water added, at 70-80 DEG C
Lower high speed shear 30-40min, obtains mixture two；
D, mixture two is imported into melting extrusion in dual-screw-stem machine, imports in mold, is placed in drying box and dehydrates, then carry out
Extrusion forming, after cooling, you can obtain finished product.
Preferably, the preparation method of the filler of the step a is：Short fiber of plant, calcium carbonate, talcum powder, carbon black are mixed
It closes, is placed in 80-100 DEG C of drying box and toasts 1-2h, be then fed into high speed mixer, surface conditioning agent is added while stirring, stir
It mixes uniformly, you can obtain filler.
Preferably, the preparation method of the modified starch of the step b is：Plant amylum is dried at 40-45 DEG C, then is thrown
Enter and stir 10-15min in high-speed mixer, modifying agent is added, helps degradation agent, then temperature is risen to 70-90 DEG C, high-speed stirred
20-30min, to get modified starch after cooling.
Preferably, the lubrication plasticizer of the step b is the mixing of tributyl 2-acetylcitrate, polyethylene glycol and glycerine.
Preferably, the heat stabilizer of the step c is the mixing of odium stearate and calcium stearate.
The beneficial effects of the invention are as follows：
Environment-friendly materials prepared by the present invention are degradable, heat distortion temperature is high, and application field is wide, and its high mechanical strength, processing
It has excellent performance, polylactic acid dosage is few so that manufacturing cost greatly reduces.
Filler ingredient in the present invention contains plant fiber, calcium carbonate, talcum powder and carbon black, can effectively enhance environmentally friendly material
The intensity of material, and the ingredient of filler is also degradable and free of contamination；Filler coordinates the use of modified starch, can be greatly
The addition for reducing polylactic acid, to reduce production cost, and can improve the toughness of the environment-friendly materials of preparation, modified starch can
To improve its tensile strength and elongation at break so that its processing performance is more excellent, and plasticity is stronger.
Specific implementation mode
Embodiment 1
A kind of degradable environment-friendly material includes the raw material of following parts by weight：13 parts of polylactic acid, 22 parts of Fypro, ethylene-the third
14 parts of olefin(e) acid methacrylate copolymers, 22 parts of polyethylene wax, 17 parts of maleic anhydride, 18 parts of modified starch, 22 parts of filler, heat stabilizer 5
22 parts of part, 7 parts of smoke suppressant, 4 parts of crosslinking agent, 13 parts of dispersant, 6 parts of plasticizer of lubrication and water.
A kind of preparation method of degradable environment-friendly material, including following preparation process：
A, polylactic acid, polyethylene wax, filler and crosslinking agent are mixed, is imported in reaction kettle, the heating reaction 2h at 55 DEG C, then add
Enter Fypro, 20min is stirred under the rotating speed of 120r/min, obtains mixture one；
B, by modified starch, ethylene-ethyl acrylate copolymer, dispersant and lubrication plasticizer mix, heated at 75 DEG C into
Row gelatinization processing 30min, then 50 DEG C are cooled to, thick slurry is made in stirring；
C, it will be imported in batch mixer together with mixture one and slurry, add maleic anhydride, heat stabilizer and water, it is high at 70 DEG C
Speed shearing 40min, obtains mixture two；
D, mixture two is imported into melting extrusion in dual-screw-stem machine, imports in mold, is placed in drying box and dehydrates, then carry out
Extrusion forming, after cooling, you can obtain finished product.
The preparation method of the filler of step a is：Short fiber of plant, calcium carbonate, talcum powder, carbon black are mixed, are placed in 80 DEG C
1h is toasted in drying box, is then fed into high speed mixer, surface conditioning agent is added while stirring, stir evenly, you can filled out
Material.
The preparation method of the modified starch of step b is：Plant amylum is dried at 4 DEG C, then is put into high-speed mixer
15min is stirred, modifying agent is added, helps degradation agent, then temperature is risen to 70 DEG C, high-speed stirred 30min, to get modification after cooling
Starch.
The lubrication plasticizer of step b is the mixing of tributyl 2-acetylcitrate, polyethylene glycol and glycerine.
The heat stabilizer of step c is the mixing of odium stearate and calcium stearate.
Embodiment 2
A kind of degradable environment-friendly material includes the raw material of following parts by weight：15 parts of polylactic acid, 22 parts of Fypro, ethylene-
14 parts of ethyl acrylate copolymer, 20 parts of polyethylene wax, 14 parts of maleic anhydride, 18 parts of modified starch, 15 parts of filler, heat stabilizer
16 parts of 8 parts, 5 parts of smoke suppressant, 6 parts of crosslinking agent, 13 parts of dispersant, 12 parts of plasticizer of lubrication and water.
A kind of preparation method of degradable environment-friendly material, including following preparation process：
A, polylactic acid, polyethylene wax, filler and crosslinking agent are mixed, is imported in reaction kettle, the heating reaction 1h at 55 DEG C, then add
Enter Fypro, 20min is stirred under the rotating speed of 120r/min, obtains mixture one；
B, by modified starch, ethylene-ethyl acrylate copolymer, dispersant and lubrication plasticizer mix, heated at 70 DEG C into
Row gelatinization processing 35min, then 40 DEG C are cooled to, thick slurry is made in stirring；
C, it will be imported in batch mixer together with mixture one and slurry, maleic anhydride, heat stabilizer and water added, at 70-80 DEG C
Lower high speed shear 30min, obtains mixture two；
D, mixture two is imported into melting extrusion in dual-screw-stem machine, imports in mold, is placed in drying box and dehydrates, then carry out
Extrusion forming, after cooling, you can obtain finished product.
The preparation method of the filler of step a is：Short fiber of plant, calcium carbonate, talcum powder, carbon black are mixed, are placed in 80 DEG C
1h is toasted in drying box, is then fed into high speed mixer, surface conditioning agent is added while stirring, stir evenly, you can filled out
Material.
The preparation method of the modified starch of step b is：Plant amylum is dried at 40 DEG C, then is put into high-speed mixer
10min is stirred, modifying agent is added, helps degradation agent, then temperature is risen to 70 DEG C, high-speed stirred 20min, to get modification after cooling
Starch.
The lubrication plasticizer of step b is the mixing of tributyl 2-acetylcitrate, polyethylene glycol and glycerine.
The heat stabilizer of step c is the mixing of odium stearate and calcium stearate.
Embodiment 3
A kind of degradable environment-friendly material includes the raw material of following parts by weight：15 parts of polylactic acid, 22 parts of Fypro, ethylene-the third
17 parts of olefin(e) acid methacrylate copolymers, 20 parts of polyethylene wax, 16 parts of maleic anhydride, 18 parts of modified starch, 18 parts of filler, heat stabilizer 8
18 parts of part, 5 parts of smoke suppressant, 9 parts of crosslinking agent, 10 parts of dispersant, 12 parts of plasticizer of lubrication and water.
A kind of preparation method of degradable environment-friendly material, including following preparation process：
A, polylactic acid, polyethylene wax, filler and crosslinking agent are mixed, is imported in reaction kettle, the heating reaction 2h at 65 DEG C, then add
Enter Fypro, 30min is stirred under the rotating speed of 160r/min, obtains mixture one；
B, by modified starch, ethylene-ethyl acrylate copolymer, dispersant and lubrication plasticizer mix, heated at 75 DEG C into
Row gelatinization processing 45min, then 50 DEG C are cooled to, thick slurry is made in stirring；
C, it will be imported in batch mixer together with mixture one and slurry, add maleic anhydride, heat stabilizer and water, it is high at 70 DEG C
Speed shearing 40min, obtains mixture two；
D, mixture two is imported into melting extrusion in dual-screw-stem machine, imports in mold, is placed in drying box and dehydrates, then carry out
Extrusion forming, after cooling, you can obtain finished product.
The preparation method of the filler of step a is：Short fiber of plant, calcium carbonate, talcum powder, carbon black are mixed, are placed in 100 DEG C
1h is toasted in drying box, is then fed into high speed mixer, surface conditioning agent is added while stirring, stir evenly, you can filled out
Material.
The preparation method of the modified starch of step b is：Plant amylum is dried at 45 DEG C, then is put into high-speed mixer
15min is stirred, modifying agent is added, helps degradation agent, then temperature is risen to 90 DEG C, high-speed stirred 30min, to get modification after cooling
Starch.
The lubrication plasticizer of step b is the mixing of tributyl 2-acetylcitrate, polyethylene glycol and glycerine.
The heat stabilizer of step c is the mixing of odium stearate and calcium stearate.
Finished product prepared by above example is detected, following experimental data is obtained：
Table one：
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Degradation property（ISO14855） | 50 Tian≤60% | 45 Tian≤60% | 48 Tian≤60% |
| Tensile strength（MPa） | 58 | 62 | 63 |
| Heat distortion temperature（℃） | 106 | 106 | 105 |
| Elongation at break（%） | 680 | 630 | 650 |
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to the foregoing embodiments
Invention is explained in detail, for those skilled in the art, still can be to foregoing embodiments institute
The technical solution of record is modified or equivalent replacement of some of the technical features.It is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of degradable environment-friendly material, which is characterized in that include the raw material of following parts by weight：13-18 parts of polylactic acid, polyamide
22-28 parts of fiber, 17-22 parts of polyethylene wax, 14-17 parts of maleic anhydride, is modified 14-19 parts of ethylene-ethyl acrylate copolymer
18-23 parts of starch, 12-22 parts of filler, 5-9 parts of heat stabilizer, 3-7 parts of smoke suppressant, 4-9 parts of crosslinking agent, 8-13 parts of dispersant, profit
16-22 parts of 6-12 parts of sliding plasticizer and water.
2. a kind of degradable environment-friendly material according to claim 1, which is characterized in that the environment-friendly materials include following heavy
Measure the raw material of part：13-15 parts of polylactic acid, 22-26 parts of Fypro, 14-17 parts of ethylene-ethyl acrylate copolymer, poly- second
17-20 parts of alkene wax, 14-16 parts of maleic anhydride, 18-21 parts of modified starch, 15-20 parts of filler, 5-8 parts of heat stabilizer, smoke suppressant
16-20 parts of 5-7 parts, 6-9 parts of crosslinking agent, 10-13 parts of dispersant, 9-12 parts of plasticizer of lubrication and water.
3. a kind of degradable environment-friendly material according to claim 1, which is characterized in that the environment-friendly materials include following heavy
Measure the raw material of part：15 parts of polylactic acid, 22 parts of Fypro, 17 parts of ethylene-ethyl acrylate copolymer, 20 parts of polyethylene wax,
16 parts of maleic anhydride, 18 parts of modified starch, 18 parts of filler, 8 parts of heat stabilizer, 5 parts of smoke suppressant, 9 parts of crosslinking agent, dispersant 10
18 parts of part, 12 parts of plasticizer of lubrication and water.
4. a kind of preparation method of degradable environment-friendly material of claim 1-3 any one of them, which is characterized in that including following
Preparation process：
A, polylactic acid, polyethylene wax, filler and crosslinking agent are mixed, is imported in reaction kettle, the heating reaction 1- at 55-65 DEG C
2h adds Fypro, and 20-30min is stirred under the rotating speed of 120-160r/min, obtains mixture one；
B, modified starch, ethylene-ethyl acrylate copolymer, dispersant and lubrication plasticizer are mixed, is heated at 70-75 DEG C
Gelatinization processing 30-45min is carried out, then is cooled to 40-50 DEG C, thick slurry is made in stirring；
C, it will be imported in batch mixer together with mixture one and slurry, maleic anhydride, heat stabilizer and water added, at 70-80 DEG C
Lower high speed shear 30-40min, obtains mixture two；
D, mixture two is imported into melting extrusion in dual-screw-stem machine, imports in mold, is placed in drying box and dehydrates, then carry out
Extrusion forming, after cooling, you can obtain finished product.
5. a kind of preparation method of degradable environment-friendly material according to claim 4, which is characterized in that the step a's
The preparation method of filler is：Short fiber of plant, calcium carbonate, talcum powder, carbon black are mixed, is placed in 80-100 DEG C of drying box and toasts
1-2h is then fed into high speed mixer, surface conditioning agent is added while stirring, stir evenly, you can obtains filler.
6. a kind of preparation method of degradable environment-friendly material according to claim 4, which is characterized in that the step b's
The preparation method of modified starch is：Plant amylum is dried at 40-45 DEG C, then puts into and stirs 10- in high-speed mixer
15min is added modifying agent, helps degradation agent, then temperature is risen to 70-90 DEG C, high-speed stirred 20-30min, it is cooling after to get changing
Property starch.
7. a kind of preparation method of degradable environment-friendly material according to claim 4, which is characterized in that the step b's
Lubrication plasticizer is the mixing of tributyl 2-acetylcitrate, polyethylene glycol and glycerine.
8. a kind of preparation method of degradable environment-friendly material according to claim 4, which is characterized in that the step c's
Heat stabilizer is the mixing of odium stearate and calcium stearate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810335961.6A CN108587129A (en) | 2018-04-16 | 2018-04-16 | A kind of degradable environment-friendly material and preparation method thereof |
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| CN201810335961.6A CN108587129A (en) | 2018-04-16 | 2018-04-16 | A kind of degradable environment-friendly material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113136054A (en) * | 2021-03-25 | 2021-07-20 | 广东工业大学 | Starch/polylactic acid composite material and preparation method and application thereof |
| CN113583303A (en) * | 2021-07-28 | 2021-11-02 | 浙江晟祺实业有限公司 | Easily degradable packaging material and preparation method thereof |
| CN115946418A (en) * | 2023-01-09 | 2023-04-11 | 汕头经济特区雄伟塑料包装材料有限公司 | Easily degradable cigarette film and preparation method thereof |
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| CN1597752A (en) * | 2004-08-23 | 2005-03-23 | 成都新柯力化工科技有限公司 | Biodegradation starch resin masterbatch |
| CN104610715A (en) * | 2015-01-07 | 2015-05-13 | 惠州市健昇环保材料科技有限公司 | Fiber-reinforced full-degradable heat-resisting environmental protection material, and preparation method and application thereof |
| CN107141603A (en) * | 2017-06-29 | 2017-09-08 | 合肥达户电线电缆科技有限公司 | A kind of degradable environment-friendly material and preparation method thereof |
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2018
- 2018-04-16 CN CN201810335961.6A patent/CN108587129A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597752A (en) * | 2004-08-23 | 2005-03-23 | 成都新柯力化工科技有限公司 | Biodegradation starch resin masterbatch |
| CN104610715A (en) * | 2015-01-07 | 2015-05-13 | 惠州市健昇环保材料科技有限公司 | Fiber-reinforced full-degradable heat-resisting environmental protection material, and preparation method and application thereof |
| CN107141603A (en) * | 2017-06-29 | 2017-09-08 | 合肥达户电线电缆科技有限公司 | A kind of degradable environment-friendly material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113136054A (en) * | 2021-03-25 | 2021-07-20 | 广东工业大学 | Starch/polylactic acid composite material and preparation method and application thereof |
| CN113583303A (en) * | 2021-07-28 | 2021-11-02 | 浙江晟祺实业有限公司 | Easily degradable packaging material and preparation method thereof |
| CN115946418A (en) * | 2023-01-09 | 2023-04-11 | 汕头经济特区雄伟塑料包装材料有限公司 | Easily degradable cigarette film and preparation method thereof |
| CN115946418B (en) * | 2023-01-09 | 2023-07-14 | 汕头经济特区雄伟塑料包装材料有限公司 | Easily degradable film for cigarettes and preparation method thereof |
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Application publication date: 20180928 |