CN108003583A - A kind of high tensile complete biodegradable refuse bag production technology - Google Patents
A kind of high tensile complete biodegradable refuse bag production technology Download PDFInfo
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- CN108003583A CN108003583A CN201711391587.3A CN201711391587A CN108003583A CN 108003583 A CN108003583 A CN 108003583A CN 201711391587 A CN201711391587 A CN 201711391587A CN 108003583 A CN108003583 A CN 108003583A
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- refuse bag
- complete biodegradable
- starch
- pla
- pbat
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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
-
- 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
-
- 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
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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
Abstract
The invention discloses a kind of high tensile complete biodegradable refuse bag production technology, comprise the following steps：S01, starch is handled with coupling agent in homogenizer after the drying, is then placed in baking oven and dries again；S02, PLA and PBAT is put into vacuum drying chamber dry；S03, will it is dry in S01 after it is dry in starch and S02 after obtained coupling after obtained PLA and PBAT be stirred；S04, the hybrid particles that S03 is obtained add to double screw extruder and carry out extruding pelletization；S05, the pellet that S04 is obtained are dried in vacuo；S06, blow molding in refuse bag inflation film manufacturing machine is added to by the pellet being dried to obtain in S05；S07, the plastic foil that S05 is obtained is cooled down, flanging；S08, adds Bag Making Machine, produces required product.A kind of high tensile complete biodegradable refuse bag production technology of the present invention, can be modified starch, the tensile strength of the refuse bag of production is high and degradable.
Description
Technical field
The present invention relates to a kind of high tensile complete biodegradable refuse bag production technology.
Background technology
In recent years, problem of environmental pollution and energy shortage problem getting worse, academia and industrial quarters all are seeking to follow
Environmentally friendly green material that ring utilizes substitutes petroleum based material, can substantially reduce to increasingly deficient petroleum resources according to
Rely, be conducive to sustainable development；Wherein, polyester biodegradable high molecular material gets most of the attention.Polyester biodegradable
High molecular material is made of all kinds of natural animal-plants and renewable resource, is had renewable, degradable, environmental-friendly and raw
The advantages that thing compatibility is good, possesses extremely wide development and application prospect.
In numerous biodegradable polymers being concerned, polylactic acid is current most study, yield maximum and business
Change one of Biodegradable material the most successful.PLA is the aliphatic polyester synthesized by renewable resource, with its good life
Thing compatibility, the transparency and mechanical strength and be widely used in the fields such as medical treatment, pharmacy, agricultural, packaging and clothes.However,
The elongation at break of PLA (polylactic acid) is very low, and brittleness is very big, limits it and is more widely applied.Unlike PLA,
The intensity of PBAT (adipic acid-two ester copolymer of terephthalic acid (TPA)-fourth) is relatively low and extension at break is very high (>=600%), is soft
The fabulous elastomeric material of toughness.PBAT is chiefly used in the products such as agricultural mulching or environmental protection garbage bag at present, but due to aromatic series
The presence of segment, the degradation speed of PBAT are slow.
Starch is that degradation material is modified one of most potential research object in field.But starch is because contain too many parent
Water-based hydroxyl and be difficult to be combined with hydrophobic polyester plastics, cause mechanical properties decrease.
The content of the invention
The technical problem to be solved in the present invention is, there is provided one kind can be modified starch, and it is strong to produce a kind of high stretching
Degree and degradable high tensile complete biodegradable refuse bag production technology.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of high tensile complete biodegradable refuse bag production technology, comprises the following steps：
S01, starch is handled with coupling agent in homogenizer after the drying, is then placed in baking oven and dries again；
S02, PLA and PBAT is put into vacuum drying chamber dry；
S03, will it is dry in S01 after it is dry in starch and S02 after obtained coupling after obtained PLA and PBAT stirrings it is mixed
Close；
S04, the hybrid particles that S03 is obtained add to double screw extruder and carry out extruding pelletization；
S05, the pellet that S04 is obtained are dried in vacuo；
S06, blow molding in refuse bag inflation film manufacturing machine is added to by the pellet being dried to obtain in S05；
S07, the plastic foil that S05 is obtained is cooled down, flanging；
S08, adds Bag Making Machine, produces required product.
In S01, the drying temperature of starch is 110 DEG C to 130 DEG C, drying time 24h.
In S02, the drying temperature of PLA and PBAT are 50 DEG C to 70 DEG C, and drying time arrives 5h for 3.
In S04, the temperature in 1st~7 area of double screw extruder is followed successively by 170,180,185,185,175,165 and 155 DEG C, if
It is 15Hz to determine twin-screw extrusion machine host frequency.
In S05, pellet drying temperature is 70 DEG C to 90 DEG C, and drying time arrives 5h for 3.
In S06, the temperature in 1st~5 area of refuse bag inflation film manufacturing machine is set as 150,160,165,170 and 165 DEG C successively.
Coupling agent is silane coupling agent in S01.
In S03, by weight, including starch after 80 to 100 parts of PLA, 20 to 40 parts of PBAT1,20 to 30 parts of couplings.
In S01, the mass fraction for adding coupling agent is 0.1% to the 0.3% of starch.
Beneficial effects of the present invention：The present invention provides a kind of high tensile complete biodegradable refuse bag production technology, leads to
PBAT is crossed to starch conversion, while adds PLA, overcomes starch because containing too many hydrophilic hydroxyl and it is difficult to and hydrophobic
Polyester plastics is combined, the shortcomings that causing mechanical properties decrease, and the refuse bag tensile strength produced is high and degradable.
Embodiment
The following examples are only intended to illustrate the technical solution of the present invention more clearly, and cannot limit the present invention with this
Protection domain.
Specific embodiment 1
A kind of high tensile complete biodegradable refuse bag production technology, comprises the following steps：
S01, starch is handled with coupling agent in homogenizer after the drying, is then placed in baking oven and dries again；
S02, PLA and PBAT is put into vacuum drying chamber dry；
S03, will it is dry in S01 after it is dry in starch and S02 after obtained coupling after obtained PLA and PBAT stirrings it is mixed
Close；
S04, the hybrid particles that S03 is obtained add to double screw extruder and carry out extruding pelletization；
S05, the pellet that S04 is obtained are dried in vacuo；
S06, blow molding in refuse bag inflation film manufacturing machine is added to by the pellet being dried to obtain in S05；
S07, the plastic foil that S05 is obtained is cooled down, flanging；
S08, adds Bag Making Machine, produces required product.
In S01, the drying temperature of starch is 110 DEG C, drying time 24h.
In S02, the drying temperature of PLA and PBAT are 50 DEG C of C, drying time 3h.
In S04, the temperature in 1st~7 area of double screw extruder is followed successively by 170,180,185,185,175,165 and 155 DEG C, if
It is 15Hz to determine twin-screw extrusion machine host frequency.
In S05, pellet drying temperature is 70 DEG C, drying time 3.
In S06, the temperature in 1st~5 area of refuse bag inflation film manufacturing machine is set as 150,160,165,170 and 165 DEG C successively.
Coupling agent is silane coupling agent in S01.
In S03, by weight, including starch after 80 parts of PLA, 20 parts of PBAT1 and 20 part of couplings.
In S01, the mass fraction for adding coupling agent is the 0.1% of starch.
Specific embodiment 2
A kind of high tensile complete biodegradable refuse bag production technology, comprises the following steps：
S01, starch is handled with coupling agent in homogenizer after the drying, is then placed in baking oven and dries again；
S02, PLA and PBAT is put into vacuum drying chamber dry；
S03, will it is dry in S01 after it is dry in starch and S02 after obtained coupling after obtained PLA and PBAT stirrings it is mixed
Close；
S04, the hybrid particles that S03 is obtained add to double screw extruder and carry out extruding pelletization；
S05, the pellet that S04 is obtained are dried in vacuo；
S06, blow molding in refuse bag inflation film manufacturing machine is added to by the pellet being dried to obtain in S05；
S07, the plastic foil that S05 is obtained is cooled down, flanging；
S08, adds Bag Making Machine, produces required product.
In S01, the drying temperature of starch is 120 DEG C, drying time 24h.
In S02, the drying temperature of PLA and PBAT are 60 DEG C, drying time 4h.
In S04, the temperature in 1st~7 area of double screw extruder is followed successively by 170,180,185,185,175,165 and 155 DEG C, if
It is 15Hz to determine twin-screw extrusion machine host frequency.
In S05, pellet drying temperature is 80 DEG C, drying time 4h.
In S06, the temperature in 1st~5 area of refuse bag inflation film manufacturing machine is set as 150,160,165,170 and 165 DEG C successively.
Coupling agent is silane coupling agent in S01.
In S03, by weight, including starch after 90 parts of PLA, 30 parts of PBAT1 and 25 part of couplings.
In S01, the mass fraction for adding coupling agent is the 0.2% of starch.
Specific embodiment 3
A kind of high tensile complete biodegradable refuse bag production technology, comprises the following steps：
S01, starch is handled with coupling agent in homogenizer after the drying, is then placed in baking oven and dries again；
S02, PLA and PBAT is put into vacuum drying chamber dry；
S03, will it is dry in S01 after it is dry in starch and S02 after obtained coupling after obtained PLA and PBAT stirrings it is mixed
Close；
S04, the hybrid particles that S03 is obtained add to double screw extruder and carry out extruding pelletization；
S05, the pellet that S04 is obtained are dried in vacuo；
S06, blow molding in refuse bag inflation film manufacturing machine is added to by the pellet being dried to obtain in S05；
S07, the plastic foil that S05 is obtained is cooled down, flanging；
S08, adds Bag Making Machine, produces required product.
In S01, the drying temperature of starch is 130 DEG C, drying time 24h.
In S02, the drying temperature of PLA and PBAT are 70 DEG C, drying time 5h.
In S04, the temperature in 1st~7 area of double screw extruder is followed successively by 170,180,185,185,175,165 and 155 DEG C, if
It is 15Hz to determine twin-screw extrusion machine host frequency.
In S05, pellet drying temperature is 90 DEG C, drying time 5h.
In S06, the temperature in 1st~5 area of refuse bag inflation film manufacturing machine is set as 150,160,165,170 and 165 DEG C successively.
Coupling agent is silane coupling agent in S01.
In S03, by weight, including starch after 100 parts of PLA, 40 parts of PBAT1 and 30 part of couplings.
In S01, the mass fraction for adding coupling agent is the 0.3% of starch.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
- A kind of 1. high tensile complete biodegradable refuse bag production technology, it is characterised in that：Comprise the following steps：S01, starch is handled with coupling agent in homogenizer after the drying, is then placed in baking oven and dries again；S02, PLA and PBAT is put into vacuum drying chamber dry；S03, will it is dry in S01 after it is dry in starch and S02 after obtained coupling after obtained PLA and PBAT be stirred；S04, the hybrid particles that S03 is obtained add to double screw extruder and carry out extruding pelletization；S05, the pellet that S04 is obtained are dried in vacuo；S06, blow molding in refuse bag inflation film manufacturing machine is added to by the pellet being dried to obtain in S05；S07, the plastic foil that S05 is obtained is cooled down, flanging；S08, adds Bag Making Machine, produces required product.
- A kind of 2. complete biodegradable refuse bag preparation method according to claim 1, it is characterised in that：In S01, starch Drying temperature is 110oC to 130oC, drying time 24h.
- A kind of 3. complete biodegradable refuse bag preparation method according to claim 1, it is characterised in that：In S02, PLA and The drying temperature of PBAT is 50oC to 70oC, drying time arrive 5h for 3.
- A kind of 4. complete biodegradable refuse bag preparation method according to claim 1, it is characterised in that：In S04, twin-screw The temperature in 1st ~ 7 area of extruder is followed successively by 170,180,185,185,175,165 and 155 DEG C, setting twin-screw extrusion machine host frequency Rate is 15 Hz.
- A kind of 5. complete biodegradable refuse bag preparation method according to claim 1, it is characterised in that：In S05, pellet Drying temperature is 70oC to 90oC, drying time arrive 5h for 3.
- A kind of 6. complete biodegradable refuse bag preparation method according to claim 1, it is characterised in that：In S06, refuse bag The temperature in 1st ~ 5 area of inflation film manufacturing machine is set as 150,160,165,170 and 165 DEG C successively.
- A kind of 7. complete biodegradable refuse bag preparation method according to claim 1, it is characterised in that：Coupling agent in S01 For silane coupling agent.
- A kind of 8. complete biodegradable refuse bag preparation method according to claim 1, it is characterised in that：In S03, with weight Starch after meter, including 80 to 100 parts of PLA, 20 to 40 parts of PBAT1,20 to 30 parts of couplings.
- A kind of 9. complete biodegradable refuse bag preparation method according to claim 1, it is characterised in that：In S01, add even The mass fraction for joining agent is 0.1% to the 0.3% of starch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391587.3A CN108003583A (en) | 2017-12-21 | 2017-12-21 | A kind of high tensile complete biodegradable refuse bag production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391587.3A CN108003583A (en) | 2017-12-21 | 2017-12-21 | A kind of high tensile complete biodegradable refuse bag production technology |
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| CN108003583A true CN108003583A (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711391587.3A Pending CN108003583A (en) | 2017-12-21 | 2017-12-21 | A kind of high tensile complete biodegradable refuse bag production technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480620A (en) * | 2020-12-01 | 2021-03-12 | 安徽同光邦飞生物科技有限公司 | Degradable resin mixture for wet garbage bag and preparation method thereof |
| CN112795149A (en) * | 2020-12-30 | 2021-05-14 | 四川天星智能包装股份有限公司 | Biodegradable polyester PBAT composite material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519524A (en) * | 2009-03-23 | 2009-09-02 | 深圳市未名北科环保材料有限公司 | Material capable of completely biodegrading and preparation method thereof |
| CN103589124A (en) * | 2012-08-14 | 2014-02-19 | 上海杰事杰新材料(集团)股份有限公司 | Fully-biodegradable PLA/PBAT composite film and making method thereof |
| CN104861210A (en) * | 2015-04-30 | 2015-08-26 | 亿帆鑫富药业股份有限公司 | Starch-base fully biodegradable resin with steady hydrophobic property and preparation method thereof |
-
2017
- 2017-12-21 CN CN201711391587.3A patent/CN108003583A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519524A (en) * | 2009-03-23 | 2009-09-02 | 深圳市未名北科环保材料有限公司 | Material capable of completely biodegrading and preparation method thereof |
| CN103589124A (en) * | 2012-08-14 | 2014-02-19 | 上海杰事杰新材料(集团)股份有限公司 | Fully-biodegradable PLA/PBAT composite film and making method thereof |
| CN104861210A (en) * | 2015-04-30 | 2015-08-26 | 亿帆鑫富药业股份有限公司 | Starch-base fully biodegradable resin with steady hydrophobic property and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480620A (en) * | 2020-12-01 | 2021-03-12 | 安徽同光邦飞生物科技有限公司 | Degradable resin mixture for wet garbage bag and preparation method thereof |
| CN112795149A (en) * | 2020-12-30 | 2021-05-14 | 四川天星智能包装股份有限公司 | Biodegradable polyester PBAT composite material and preparation method thereof |
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Application publication date: 20180508 |