CN109096709A - A kind of complete biodegradable shopping bag and preparation method thereof - Google Patents
A kind of complete biodegradable shopping bag and preparation method thereof Download PDFInfo
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- CN109096709A CN109096709A CN201810999312.6A CN201810999312A CN109096709A CN 109096709 A CN109096709 A CN 109096709A CN 201810999312 A CN201810999312 A CN 201810999312A CN 109096709 A CN109096709 A CN 109096709A
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- shopping bag
- film
- bag
- tripoli
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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
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- 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
-
- 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
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
-
- 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
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention discloses a kind of complete biodegradable shopping bag and its manufacturing methods.This kind of material is made of the tripoli, coupling agent and biodegradable polymers of particular fineness.The fineness of tripoli is determined by shopping bag thickness produced.The tripoli of 10%~20% particular fineness, 0.2%~1% coupling agent and 79%~89.8% biodegradable polymers are stirred, degradation pellet is first made；Pellet is become into complete biodegradable shopping bag through blown film, bag making, printing again.The primary demand that this kind degradation shopping bag meets shopping can degrade when it is used as refuse bag under the action of the light in soot or heat.With the degradation of shopping bag, it can also promote the degradation of rubbish in bag.
Description
Technical field
The present invention relates to degradation shopping bag Material Fields, and in particular to a kind of complete biodegradable shopping bag and its manufacturer
Method.
Background technique
Plastics become food packet with its unique advantage, such as safety, health, lightweight, durable and high article packaging ratio
Dress and film bag based article main material.Common shopping bag makes of polyethylene, it is very difficult to degrade.And shopping bag most
Secondary purposes is refuse bag.The plastic shopping bag of rubbish is filled in addition to part carries out burning disposal, remaining is transported to landfill yard.It is difficult
To degrade and the common plastics shopping bag that seals prevents the flowing of empty gas and water and microorganism inside and outside bag again, bag is reduced
The degradation rate of interior rubbish.In addition, the gas wrapped up in polybag, considerably increases plastic membrane product in garbage loading embeading place
The volume accounted for causes the percentage of plastics package rubbish volume shared by landfill yard to be far longer than its weight percent.In order to subtract
The use of few plastic shopping bag, on June 1st, 2008, country, which has promulgated, to be forbidden producing, selling and uying thickness in China
Plastic shopping bag less than 0.025 millimeter；Plastics shopping is carried out in the commodity retails place such as all supermarkets, market, country fair
Bag Paid Use System.But it preferably can be with the product of substituted for plastic shopping bag, although plastics because a kind of currently not yet
The quantity of shopping bag is reduced, and the dosage of plastics bag on roll but improves.Administering pollution caused by plastic shopping bag is still
One important work.
Summary of the invention
To solve the above problems, the present invention provides a kind of complete biodegradable shopping bag and its manufacturing method, present invention addition
The tripoli of different-grain diameter overcomes shopping bag, the especially problem difficult to degrade in landfill yard when shopping bag is equipped with rubbish.
Technical solution of the present invention:
A kind of full-biodegradable film shopping bag, shopping bag include the raw material of following weight percentage: 10%~20% tripoli,
0.2%~1% coupling agent and 79%~89.8% biodegradable polymers.
Further, when the shopping bag of production is with a thickness of 25 microns, tripoli by the sieves of 600 mesh, tail over as 10%~
20%, screenings is passed through to the sieve of 800 mesh, tailing over is 20%~50%；
When the shopping bag of production is with a thickness of 30 microns, tripoli passes through the sieve of 500 mesh, and tailing over is 20%~40%, by screenings
Pass through the sieve of 600 mesh again, tailing over is 30%~70%.
Further, the coupling agent is vinyltriethoxysilane, methyltrimethoxysilane, triethanolamine boric acid
One of ester, four n-propyl zirconates, distearyl acyl-oxygen aluminum isopropoxide acid esters and aminopropyl triethoxysilane and its with
On.
Further, the coupling agent is vinyltriethoxysilane.
Further, the biodegradable polymers are aliphatic-aromatic copolymer, aliphatic polyester, titanium dioxide
Carbon-epoxy compound composition copolymer or oxygen-containing polyalkamer.
A kind of preparation method of full-biodegradable film shopping bag, by load weighted tripoli, coupling agent and biodegradable
Polymer is stirred with heating stirring machine, and using twin-screw extruder pelletizer, degradation pellet is made；
Degradation pellet is put into single screw rod and squeezes out in the hopper of inflation film manufacturing machine, and shopping bag film is made through blown film, will be done shopping with Bag Making Machine
Shopping bag is made in bag film.
Further, the revolving speed of the heating stirring machine is 1000 ~ 1200rpm, and whipping temp is 50 DEG C ~ 60 DEG C, stirring
Time is 15 ~ 20min.
Further, the screw slenderness ratio L/D of the twin-screw extruder pelletizer is 40 ~ 50, and pelletization stage temperature is 155
℃~190℃。
Further, it is 30 that the single screw rod, which squeezes out the screw slenderness ratio L/D of inflation film manufacturing machine, blown film phase temperature is 165 DEG C ~
195℃。
Percentage composition of the invention is weight percentage.
Described tail over is to stay in the percentage composition of the substance above sieve, screenings is logical during sieve sieve
The substance that sieve of sifting out down.
Beneficial effects of the present invention:
The tripoli of different-grain diameter ratio, different content is added when preparing shopping bag in the present invention, so that this kind of shopping bag, which removes, to expire
After foot shopping primary demand, after it is used as refuse bag, after the light or heat in soot, bag formation of doing shopping is with silica
Aperture centered on little particle, so that the rubbish and the external world in bag have the exchange of gas and moisture, so that the volume of rubbish is reduced,
The degradation speed for accelerating rubbish, extends the service life of refuse landfill.With the extension of time, biological degradability shopping and rubbish
Rubbish continues to degrade together, is further reduced its volume, is finally degraded to carbon dioxide, water and a small amount of humus, and it is dirty to reduce environment
Dye, guarantees the sustainable development of ecological environment.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
Embodiment 1:
(I) granular material formula (kg) is degraded:
(by the sieve of 600 mesh, tail over is 10% to tripoli, and screenings is passed through to the sieve of 800 mesh again, is tailed over as 20%): 10
Vinyltriethoxysilane: 1
Polylactic acid (PLA): 30
Adipic acid mutual-phenenyl two acid bromide two alcohol ester copolymer (PBAT): 59
(II) degradation pellet preparation:
Step 1: by tripoli, vinyltriethoxysilane, polylactic acid and adipic acid pair in load weighted degradable material formula
Benzene dicarboxylic acid butanediol ester copolymer is put into heating stirring machine and is mixed, and the revolving speed of heating stirring machine is 1000rpm, stirring
Temperature is 50 ~ 60oC, mixing time 15min.
Step 2: mixture is granulated in twin-screw extruder pelletizer, compost type degradable material is prepared.Twin-screw
The screw slenderness ratio L/D of Squeezinggranulator is 40, and temperature is 155 DEG C ~ 165 DEG C in granulation process.
(III) prepared by complete biodegradable shopping bag:
Step 1: degradation pellet, which is poured into single screw rod, squeezes out blown film in inflation film manufacturing machine, the shopping bag film of 25 microns thick of preparation.Single spiral shell
The screw slenderness ratio L/D that bar squeezes out inflation film manufacturing machine is 30, and temperature is 165 DEG C ~ 175 DEG C during blown film.
Step 2: shopping bag is made in shopping bag film with Bag Making Machine.
Embodiment 2:
It degrades granular material formula (kg):
(by the sieve of 600 mesh, tail over is 10% to tripoli, and screenings is passed through to the sieve of 800 mesh, is tailed over as 20%): 20
Vinyltriethoxysilane: 1
Polylactic acid (PLA): 30
Adipic acid mutual-phenenyl two acid bromide two alcohol ester copolymer (PBAT): 49
Complete biodegradable shopping bag obtained is with a thickness of 25 microns.
The technique and embodiment 1 of the preparation of degradation pellet and degradation shopping bag preparation are identical in embodiment 2.
Embodiment 3:
It degrades granular material formula (kg):
(by the sieve of 600 mesh, tail over is 20% to tripoli, and screenings is passed through to the sieve of 800 mesh again, is tailed over as 50%): 10
Vinyltriethoxysilane: 0.1
Aminopropyl triethoxysilane: 0.1
Polylactic acid (PLA): 30
Adipic acid mutual-phenenyl two acid bromide two alcohol ester copolymer (PBAT): 59.8
Complete biodegradable shopping bag obtained is with a thickness of 25 microns.
(II) degradation pellet preparation:
Step 1: by the tripoli in load weighted degradable material formula, vinyltriethoxysilane, aminopropyl-triethoxy silicon
Alkane, polylactic acid and adipic acid mutual-phenenyl two acid bromide two alcohol ester's copolymer are put into heating stirring machine and mix, heating stirring machine
Revolving speed be 1100rpm, whipping temp 50 ~ 60oC, mixing time 16min.
Step 2: mixture is granulated in twin-screw extruder pelletizer, compost type degradable material is prepared.Twin-screw
The screw slenderness ratio L/D of Squeezinggranulator is 45, and temperature is 165 DEG C ~ 180 DEG C in granulation process.
(III) prepared by complete biodegradable shopping bag:
Step 1: degradation pellet, which is poured into single screw rod, squeezes out blown film in inflation film manufacturing machine, the shopping bag film of 25 microns thick of preparation.Single spiral shell
The screw slenderness ratio L/D that bar squeezes out inflation film manufacturing machine is 30, and temperature control is in 175 DEG C ~ 185 DEG C sections during blown film.
Step 2: shopping bag is made in shopping bag film with Bag Making Machine.
Embodiment 4:
It degrades granular material formula (kg):
(by the sieve of 600 mesh, tail over is 20% to tripoli, and screenings is passed through to the sieve of 800 mesh again, is tailed over as 50%): 20
Vinyltriethoxysilane: 1
Polylactic acid (PLA): 30
Adipic acid mutual-phenenyl two acid bromide two alcohol ester copolymer (PBAT): 49
Complete biodegradable shopping bag obtained is with a thickness of 25 microns.
The technique and embodiment 1 of the preparation of degradation pellet and degradation shopping bag preparation are identical in embodiment 4.
Embodiment 5:
It degrades granular material formula (kg):
(by the sieve of 500 mesh, tail over is 20% to tripoli, and screenings is passed through to the sieve of 600 mesh again, is tailed over as 30%): 15
Vinyltriethoxysilane: 0.5
Polylactic acid (PLA): 30
Poly butylene succinate: 54.5
(II) degradation pellet preparation:
Step 1: by tripoli, vinyltriethoxysilane, polylactic acid and poly-succinic in load weighted degradable material formula
Butanediol ester copolymer is put into heating stirring machine and is mixed, and the revolving speed of heating stirring machine is 1200rpm, whipping temp 50
~60oC, mixing time 20min.
Step 2: mixture is granulated in twin-screw extruder pelletizer, compost type degradable material is prepared.Twin-screw
The screw slenderness ratio L/D of Squeezinggranulator is 50, and temperature is 180 DEG C ~ 190 DEG C in granulation process.
(III) prepared by complete biodegradable shopping bag:
Step 1: degradation pellet, which is poured into single screw rod, squeezes out blown film in inflation film manufacturing machine, the shopping bag film of 30 microns thick of preparation.Single spiral shell
The screw slenderness ratio L/D that bar squeezes out inflation film manufacturing machine is 30, and temperature is 185 DEG C ~ 195 DEG C during blown film.
Step 2: shopping bag is made in shopping bag film with Bag Making Machine.
Embodiment 6:
It degrades granular material formula (kg):
(by the sieve of 500 mesh, tail over is 30% to tripoli, and screenings is passed through to the sieve of 600 mesh, is tailed over as 50%): 15
Vinyltriethoxysilane: 0.5
Polylactic acid (PLA): 30
Poly butylene succinate: 54.5
Complete biodegradable shopping bag obtained is with a thickness of 30 microns.
The technique and embodiment 5 of the preparation of degradation pellet and degradation shopping bag preparation are identical in embodiment 6.
Embodiment 7:
It degrades granular material formula (weight percent):
(it is 70% that 600 purposes tail over to tripoli, and 500 purposes tail over as 40%): 15
Vinyltriethoxysilane: 0.5
Polylactic acid (PLA): 30
Poly butylene succinate: 54.5
Complete biodegradable shopping bag obtained is with a thickness of 30 microns.
The technique and embodiment 5 of the preparation of degradation pellet and degradation shopping bag preparation are identical in embodiment 7.
Experimental example 1:
Shopping bag in embodiment 1 ~ 7 is irradiated under ultraviolet light.Using 340nm fluorescent tube, irradiated under 340nm wavelength strong
Degree is (0.78 ± 0.12) W/m2nm.Table 1 is the relationship of shopping bag irradiation time and longitudinal elongation at break rate.
1 shopping bag irradiation time (h) of table and longitudinal elongation at break rate (%)
By the comparison of the shopping bag produced in embodiment it has been observed that
(1) certain in other situations, increase the ratio of tripoli；
(2) in the case where tripoli content and certain mesh number, increase tails over percentage, can all weaken longitudinal elongation at break rate.
Experimental example 2:
Shopping bag in embodiment 1 ~ 7 and compost are mixed, are put into container, indoor compost examination is carried out under dark or dim light
It tests.Keeping temperature is 58oC±2oC, the moisture content of mixture are 50%.Table 2 is the pass of shopping bag compost time and seepage rate
System.
The measuring method of seepage rate: in room temperature 23oC±2oUnder C and normal pressure, the Bu Shi that sample lies in 120mm specification is leaked
It struggles against on sandwich layer, 100ml distilled water is added, be recorded in the water oozed out in Buchner funnel in 1 hour.Seepage rate is that exudation water is removed
Original water, is expressed as a percentage in Buchner funnel.
2 shopping bag compost time (day) of table and seepage rate (%)
By the comparison of the shopping bag produced in embodiment it has been observed that
(1) in the case where other conditions are constant, increase the content of tripoli, seepage rate increases.
(2) in the case where other conditions are constant, increase tripoli and tail over percentage, seepage rate increases.
Claims (9)
1. a kind of full-biodegradable film shopping bag, it is characterised in that: shopping bag includes the raw material of following percentage composition: 10%
~20% tripoli, 0.2%~1% coupling agent and 79%~89.8% biodegradable polymers.
2. a kind of full-biodegradable film shopping bag according to claim 1, it is characterised in that: when shopping bag is micro- with a thickness of 25
Meter Shi, for tripoli by the sieves of 600 mesh, tailing over is 10%~20%, and screenings is passed through to the sieve of 800 mesh, tail over as 20%~
50%；
When shopping bag is with a thickness of 30 microns, tripoli passes through the sieve of 500 mesh, and tailing over is 20%~40%, and screenings is passed through again
The sieve of 600 mesh, tailing over is 30%~70%.
3. a kind of full-biodegradable film shopping bag according to claim 1, it is characterised in that: the coupling agent is vinyl
Triethoxysilane, methyltrimethoxysilane, triethanolamine borate, four n-propyl zirconates, distearyl acyl-oxygen isopropyl oxygen
One of base Aluminate and aminopropyl triethoxysilane and its more than.
4. a kind of full-biodegradable film shopping bag according to claim 3, it is characterised in that: the coupling agent is vinyl
Triethoxysilane.
5. a kind of full-biodegradable film shopping bag according to claim 1, it is characterised in that: the biodegradable polymeric
Object is aliphatic-aromatic copolymer, aliphatic polyester, carbon dioxide-epoxy compound composition copolymer or oxygen-containing polyalkamer.
6. the preparation method of full-biodegradable film shopping bag described in a kind of any one of Claims 1 to 5, it is characterised in that:
Load weighted tripoli, coupling agent and biodegradable polymers are stirred with heating stirring machine, are made using twin-screw extruder
Grain machine, is made degradation pellet；
Degradation pellet is put into single screw rod and squeezes out in the hopper of inflation film manufacturing machine, and shopping bag film is made through blown film, will be done shopping with Bag Making Machine
Shopping bag is made in bag film.
7. preparation method according to claim 6, it is characterised in that: the revolving speed of the heating stirring machine be 1000 ~
1200rpm, whipping temp are 50 DEG C ~ 60 DEG C, and mixing time is 15 ~ 20min.
8. preparation method according to claim 6, it is characterised in that: the screw slenderness ratio of the twin-screw extruder pelletizer
L/D is 40 ~ 50, and pelletization stage temperature is 155 DEG C ~ 190 DEG C.
9. preparation method according to claim 6, it is characterised in that: the single screw rod squeezes out the screw slenderness ratio of inflation film manufacturing machine
L/D is 30, and blown film phase temperature is 165 DEG C ~ 195 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810999312.6A CN109096709A (en) | 2018-08-30 | 2018-08-30 | A kind of complete biodegradable shopping bag and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810999312.6A CN109096709A (en) | 2018-08-30 | 2018-08-30 | A kind of complete biodegradable shopping bag and preparation method thereof |
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Family
ID=64864301
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