CN114292511B - Carbon dioxide-based degradable shockproof bubble film and preparation method thereof - Google Patents
Carbon dioxide-based degradable shockproof bubble film and preparation method thereof Download PDFInfo
- Publication number
- CN114292511B CN114292511B CN202111669443.6A CN202111669443A CN114292511B CN 114292511 B CN114292511 B CN 114292511B CN 202111669443 A CN202111669443 A CN 202111669443A CN 114292511 B CN114292511 B CN 114292511B
- Authority
- CN
- China
- Prior art keywords
- bubble film
- carbon dioxide
- degradable
- temperature
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 31
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 229920001896 polybutyrate Polymers 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000005187 foaming Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 2
- PTIXVVCRANICNC-UHFFFAOYSA-N butane-1,1-diol;hexanedioic acid Chemical compound CCCC(O)O.OC(=O)CCCCC(O)=O PTIXVVCRANICNC-UHFFFAOYSA-N 0.000 claims description 2
- JYLRDAXYHVFRPW-UHFFFAOYSA-N butane-1,1-diol;terephthalic acid Chemical compound CCCC(O)O.OC(=O)C1=CC=C(C(O)=O)C=C1 JYLRDAXYHVFRPW-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000010345 tape casting Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 description 14
- 239000010935 stainless steel Substances 0.000 description 14
- 239000010410 layer Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004594 Masterbatch (MB) Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000006065 biodegradation reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- JQYSLXZRCMVWSR-UHFFFAOYSA-N 1,6-dioxacyclododecane-7,12-dione;terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1.O=C1CCCCC(=O)OCCCCO1 JQYSLXZRCMVWSR-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013533 biodegradable additive Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Biological Depolymerization Polymers (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of novel degradable materials, and particularly relates to a carbon dioxide-based degradable shockproof bubble film and a preparation method thereof. The carbon dioxide-based degradable shockproof bubble film is prepared by mixing 50-70wt% of PPC and 30-50wt% of PBAT. The preparation method comprises the following steps: (1) modified granulation: sucking the PPC and PBAT raw materials into a mixer, mixing, plasticizing, air-cooling and granulating to obtain a degradable modified mixture; (2) plasticizing and foaming: and adding the degradable modified mixture into a bubble film machine, plasticizing, extruding and casting to form a film, so as to obtain the degradable shockproof bubble film. The carbon dioxide-based degradable shockproof bubble film has low raw material cost, 100% degradation, environmental protection and excellent performance by adopting a plasticizing, tape casting and foam sucking one-step molding process.
Description
Technical Field
The invention belongs to the technical field of novel degradable materials, and particularly relates to a carbon dioxide-based degradable shockproof bubble film and a preparation method thereof.
Background
The double-layer film interlayer is filled with air, has light weight, elasticity and shock resistance, and is widely used for shock resistance buffer packaging of electronics, instruments, ceramics, artware, household appliances, bicycle, kitchen, furniture, paint products, glass products, precision instruments and the like. At present, the domestic shockproof bubble film is a PE product, and has long degradation time and ecological pollution. Therefore, there is an urgent need for a degradable shock resistant bubble film.
Patent CN106566210B discloses a biodegradable bubble film and a preparation method thereof, comprising the following components in parts by mass: 5-40 parts of polylactic acid, 60-95 parts of poly (butylene adipate-terephthalate), 0.5-2.0 parts of plasticizer, 0.5-2.0 parts of compatilizer, 0.2-0.5 parts of chain extender and 0.1-0.5 parts of slipping agent; the chain extender is at least one selected from ethylene-methyl acrylate-glycidyl methacrylate terpolymer, diphenylmethane diisocyanate and 1, 3-phenyl-bis (2-oxazoline). In the invention, various auxiliary agents are added into the raw material components, the compatibility of the auxiliary agents and the polymer is poor, the auxiliary agents are easy to separate out in the storage process of the product, the performance of the product is reduced, and the appearance is influenced.
Patent CN109294027a provides a degradable high-strength composite bubble film, which comprises an outer layer and an inner layer, wherein the outer layer is a protective film, the inner layer is a bubble film, and the bubble film is composed of the following raw materials in parts by weight: 42-54 parts of polyethylene, 1.3-1.8 parts of flame retardant, 0.6-1.1 parts of antibacterial agent, 0.5-1.2 parts of plasticizer and 2.2-4.6 parts of biodegradable additive. The invention adopts the composite membrane, the preparation is more complicated, the material has degradability by adding the biodegradation additive, on one hand, the addition of the biodegradation additive can influence the performance of the material, on the other hand, the biodegradability brought by the biodegradation additive is limited, and 100% biodegradation cannot be achieved.
Disclosure of Invention
The invention mainly solves the technical problems that: the carbon dioxide-based degradable shockproof bubble film is provided, the raw material cost is low, the product is degraded by 100%, and the environment is protected; the invention also provides a preparation method of the degradable shockproof bubble film, which adopts a one-step molding process of plasticizing, tape casting and foaming, and the prepared shockproof bubble film has excellent performance.
The carbon dioxide-based degradable shockproof bubble film is prepared by mixing 50-70wt% of PPC and 30-50wt% of PBAT.
In the invention, the PPC (polymethyl ethylene carbonate) is a polymer synthesized by taking carbon dioxide and propylene oxide as raw materials, is a semi-aromatic carbon dioxide-based copolymer, and has a molecular weight of 20-30 ten thousand. The PPC has the advantages of good barrier property, high viscosity, good film forming property, high molecular weight and degradability.
In the invention, the PBAT is a copolymer synthesized by taking butanediol adipate and butanediol terephthalate as raw materials, and the molecular weight of the copolymer is 10-20 ten thousand. PBAT also has excellent biodegradability.
The preparation method of the carbon dioxide-based degradable shockproof bubble film comprises the following steps:
(1) And (3) modified granulating: sucking the PPC and PBAT raw materials into a mixer, mixing, plasticizing, air-cooling and granulating to obtain a degradable modified mixture;
(2) Plasticizing and foaming: and adding the degradable modified mixture into a bubble film machine, plasticizing, extruding and casting to form a film, so as to obtain the degradable shockproof bubble film.
In the step (1), high-temperature mixing and low-temperature mixing are sequentially carried out during mixing.
Wherein the temperature of Wen Hunliao is 70-80deg.C, and the time is 15-25min; the low-temperature mixing temperature is 40-50 ℃ and the time is 5-15min.
During plasticizing, extruder temperature: heating the mixture into four areas at 145-155 ℃; the die zone temperature was 155 ℃.
Preferably, the extruder temperature: zone 1, 145 ℃, zone 2, 150 ℃, zone 3, 150 ℃, zone 4, 155 ℃.
And (3) during air cooling, the temperature of the plasticized wire material is reduced to below 40 ℃ and the wire material is pelletized.
As a preferable scheme, the step (1) adopts a stainless steel spiral feeding machine for feeding, adopts an automatic metering feeding machine for feeding, and adopts an 85-plane double granulator for masterbatch manufacturing; the method comprises the steps of extruding 10 modified wires with the diameter of 6mm at the speed of 20m per minute through a 160-mesh filter screen, wherein the modified wires are provided with 6 drying air coolers through a stainless steel chain with the length of 18m, the modified wires are cooled to 40 ℃, and the modified wires are cut into particles through a gantry type granulator to prepare a degradable modified mixture.
In the step (2), the bubble film is plasticized and extruded, and the film is formed by casting, wherein the temperature of the extruder is as follows: heating the mixture into four areas at 140-150 ℃; die temperature: heating to 150 ℃ in four areas; bubble roll temperature: the front layer is stuck to the roller surface for absorbing bubbles, and the rear layer is stuck to the wrapping gas to prepare a bubble film; the length-diameter ratio of the screw rod of the extruder is 30-35:1.
Preferably, the extruder temperature: zone 1 140 ℃, zone 2, zone 145 ℃, zone 3, 150 ℃, zone 4, 150 ℃.
As a preferable scheme, in the step (2), a bubble film is prepared by adopting a bubble film machine, and parameters of the bubble film machine are set as follows:
the feeding mode is as follows: automatic material sucking;
screw aspect ratio: 34:1;
the control mode is as follows: frequency conversion automatic control;
die form: a clothes rack type external plugging casting die head;
heating area: four regions, 36kw;
bubble roller specification: 300 x 1200mm;
the foaming mode is as follows: vacuum negative pressure;
flattening mode: bending roll 220mm,3 strips;
the cooling mode is as follows: water cooling;
sliding roller mode: 47mm,3 strips;
the rolling mode is as follows: double-station force moment;
the metering mode is as follows: changing the rolls by a PLC;
the expansion shaft mode is as follows: inflation;
the rolling mode is as follows: the coil diameter is 1600mm.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention adopts PPC and PBAT modified materials with specific molecular weight to prepare the bubble film, and ensures that various technical indexes of the bubble film are similar to those of the polyethylene bubble film while endowing the bubble film with excellent degradability, thereby meeting the use requirement;
(2) The carbon dioxide-based degradable shockproof bubble film prepared by the invention is degraded into carbon dioxide and water 100% after being used for 360 days, and is environment-friendly;
(3) The carbon dioxide-based degradable shockproof bubble film product prepared by the invention is packaged and stored by an aluminum film, does not deteriorate after being stored in a warehouse for 2 years, and can be degraded into carbon dioxide and water only under the conditions of moisture, temperature and biological bacteria.
Detailed Description
The present invention will be further illustrated by, but not limited to, examples. The raw materials in the examples are all conventional commercial products unless otherwise specified; the operation methods in the examples are conventional methods unless otherwise specified.
Example 1
A carbon dioxide-based degradable shockproof bubble film comprises the following raw materials: 60wt% PPC (purity 99.9%, molecular weight 30 ten thousand, moisture 0.1%), 40wt% PBAT (purity 99.9%, molecular weight 20 ten thousand, moisture 0.1%).
The preparation method comprises the following steps:
(1) Adding the PPC and the PBAT with the formula amount into a stainless steel high-speed mixer, mixing for 15 minutes at 75 ℃, putting into a low-speed mixer, mixing for 10 minutes at 45 ℃, and putting into a stainless steel container for standby;
feeding by a stainless steel spiral feeding machine, feeding by an automatic metering feeding machine, and manufacturing master batch by a 85-plane double-granulator; the method comprises the steps of extruding 10 modified wires with the diameter of 6mm at the speed of 20m per minute through a 160-mesh filter screen, wherein the modified wires are provided with 6 drying air coolers through a stainless steel chain with the length of 18m, the modified wires are cooled to 40 ℃, and the modified wires are cut into particles through a gantry type granulator to prepare a degradable modified mixture.
(2) Adding the carbon dioxide-based degradable modified mixture into a hopper of a bubble film forming machine, plasticizing and extruding, and casting to form a film, wherein the temperature of the extruder is as follows: zone 1 140 ℃, zone 2, 145 ℃, zone 3, 150 ℃, zone 4, 150 ℃; die temperature: zone 1 150 ℃, zone 2 150 ℃, zone 3 150 ℃, zone 4 150 ℃; bubble roll temperature: and (3) adhering the front layer to the roller surface for absorbing bubbles at 70 ℃, and adhering the rear layer to the roller surface for covering gas to prepare the bubble film.
The parameters of the bubble film machine were set as follows:
the feeding mode is as follows: automatic material sucking;
screw aspect ratio: 34:1;
the control mode is as follows: frequency conversion automatic control;
die form: a clothes rack type external plugging casting die head;
heating area: four regions, 36kw;
bubble roller specification: 300 x 1200mm;
the foaming mode is as follows: vacuum negative pressure;
flattening mode: bending roll 220mm,3 strips;
the cooling mode is as follows: water cooling;
sliding roller mode: 47mm,3 strips;
the rolling mode is as follows: double-station force moment;
the metering mode is as follows: changing the rolls by a PLC;
the expansion shaft mode is as follows: inflation;
the rolling mode is as follows: the coil diameter is 1600mm.
Example 2
A carbon dioxide-based degradable shockproof bubble film comprises the following raw materials: 50wt% PPC (purity 99.9%, molecular weight 20 tens of thousands, moisture 0.1%), 50wt% PBAT (purity 99.9%, molecular weight 10 tens of thousands, moisture 0.1%).
The preparation method comprises the following steps:
(1) Adding the PPC and the PBAT with the formula amount into a stainless steel high-speed mixer, mixing for 15 minutes at 80 ℃, putting into a low-speed mixer, mixing for 15 minutes at 40 ℃, and putting into a stainless steel container for standby;
feeding by a stainless steel spiral feeding machine, feeding by an automatic metering feeding machine, and manufacturing master batch by a 85-plane double-granulator; the method comprises the steps of extruding 10 modified wires with the diameter of 6mm at the speed of 20m per minute through a 160-mesh filter screen, wherein the modified wires are provided with 6 drying air coolers through a stainless steel chain with the length of 18m, the modified wires are cooled to 40 ℃, and the modified wires are cut into particles through a gantry type granulator to prepare a degradable modified mixture.
(3) Adding the carbon dioxide-based degradable modified mixture into a hopper of a bubble film forming machine, plasticizing and extruding, and casting to form a film, wherein the temperature of the extruder is as follows: zone 1 140 ℃, zone 2, 145 ℃, zone 3, 150 ℃, zone 4, 150 ℃; die temperature: zone 1 150 ℃, zone 2 150 ℃, zone 3 150 ℃, zone 4 150 ℃; bubble roll temperature: and (3) adhering the front layer to the roller surface for absorbing bubbles at 70 ℃, and adhering the rear layer to the roller surface for covering gas to prepare the bubble film.
The parameters of the bubble film machine were set as follows:
the feeding mode is as follows: automatic material sucking;
screw aspect ratio: 34:1;
the control mode is as follows: frequency conversion automatic control;
die form: a clothes rack type external plugging casting die head;
heating area: four regions, 36kw;
bubble roller specification: 300 x 1200mm;
the foaming mode is as follows: vacuum negative pressure;
flattening mode: bending roll 220mm,3 strips;
the cooling mode is as follows: water cooling;
sliding roller mode: 47mm,3 strips;
the rolling mode is as follows: double-station force moment;
the metering mode is as follows: changing the rolls by a PLC;
the expansion shaft mode is as follows: inflation;
the rolling mode is as follows: the coil diameter is 1600mm.
Example 3
A carbon dioxide-based degradable shockproof bubble film comprises the following raw materials: 70wt% PPC (purity 99.9%, molecular weight 25 ten thousand, moisture 0.1%), 30wt% PBAT (purity 99.9%, molecular weight 15 ten thousand, moisture 0.1%).
The preparation method comprises the following steps:
(1) Adding the PPC and the PBAT with the formula amount into a stainless steel high-speed mixer, mixing for 25 minutes at 70 ℃, putting into a low-speed mixer, mixing for 5 minutes at 50 ℃, and putting into a stainless steel container for standby;
feeding by a stainless steel spiral feeding machine, feeding by an automatic metering feeding machine, and manufacturing master batch by a 85-plane double-granulator; the method comprises the steps of extruding 10 modified wires with the diameter of 6mm at the speed of 20m per minute through a 160-mesh filter screen, wherein the modified wires are provided with 6 drying air coolers through a stainless steel chain with the length of 18m, the modified wires are cooled to 40 ℃, and the modified wires are cut into particles through a gantry type granulator to prepare a degradable modified mixture.
(4) Adding the carbon dioxide-based degradable modified mixture into a hopper of a bubble film forming machine, plasticizing and extruding, and casting to form a film, wherein the temperature of the extruder is as follows: zone 1 140 ℃, zone 2, 145 ℃, zone 3, 150 ℃, zone 4, 150 ℃; die temperature: zone 1 150 ℃, zone 2 150 ℃, zone 3 150 ℃, zone 4 150 ℃; bubble roll temperature: and (3) adhering the front layer to the roller surface for absorbing bubbles at 70 ℃, and adhering the rear layer to the roller surface for covering gas to prepare the bubble film.
The parameters of the bubble film machine were set as follows:
the feeding mode is as follows: automatic material sucking;
screw aspect ratio: 34:1;
the control mode is as follows: frequency conversion automatic control;
die form: a clothes rack type external plugging casting die head;
heating area: four regions, 36kw;
bubble roller specification: 300 x 1200mm;
the foaming mode is as follows: vacuum negative pressure;
flattening mode: bending roll 220mm,3 strips;
the cooling mode is as follows: water cooling;
sliding roller mode: 47mm,3 strips;
the rolling mode is as follows: double-station force moment;
the metering mode is as follows: changing the rolls by a PLC;
the expansion shaft mode is as follows: inflation;
the rolling mode is as follows: the coil diameter is 1600mm.
Comparative example 1
The present comparative example differs from example 1 only in the raw material composition of the carbon dioxide-based degradable vibration damping bubble film as follows: 80wt% PPC (purity 99.9%, molecular weight 30 ten thousand, moisture 0.1%), 20wt% PBAT (purity 99.9%, molecular weight 20 ten thousand, moisture 0.1%).
Comparative example 2
The present comparative example differs from example 1 only in the raw material composition of the carbon dioxide-based degradable vibration damping bubble film as follows: 40wt% PPC (purity 99.9%, molecular weight 30 ten thousand, moisture 0.1%), 60wt% PBAT (purity 99.9%, molecular weight 20 ten thousand, moisture 0.1%).
Comparative example 3
Conventional PE plastic bubble films are commercially available.
The degradable vibration damping bubble films prepared in examples 1-3 and comparative examples 1-2 were subjected to performance tests with the PE plastic bubble film of comparative example 3, wherein tensile strength and elongation at break were tested with reference to astm d683 standard, and the degradation comparison test method is:
the used PE plastic bubble film and the degradable shockproof bubble film are buried in soil, and the degradation rate is calculated after about 360 days under the conditions of temperature (15-30 ℃) and humidity (natural humidity) and biological bacteria.
The results of the performance test are shown in Table 1.
Table 1 comparison of performance test results
| Project | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Degradation rate, percent | 100 | 100 | 100 | 100 | 100 | 0 |
| Tensile strength, mpa | 24.3 | 25.1 | 23.8 | 18.3 | 20.2 | 24.5 |
| Elongation at break% | 620 | 616 | 625 | 692 | 675 | 622 |
As can be seen from Table 1, under the composition of the raw materials, the physical properties of the prepared degradable shockproof bubble film are equivalent to those of PE plastic bubble films, and the degradation rate reaches 100% which is far higher than that of the PE plastic bubble films sold in the market; when the amount of PPC is too large or too small, the physical properties of the bubble film are lowered, and the use requirements cannot be satisfied.
Claims (6)
1. A carbon dioxide-based degradable shockproof bubble film is characterized in that: is prepared by mixing 50-70wt% of PPC and 30-50wt% of PBAT;
the PPC is a polymer synthesized by taking carbon dioxide and propylene oxide as raw materials, and the molecular weight of the PPC is 20-30 ten thousand;
the PBAT is a copolymer synthesized by taking butanediol adipate and butanediol terephthalate as raw materials, and the molecular weight of the copolymer is 10-20 ten thousand;
the preparation method of the carbon dioxide-based degradable shockproof bubble film comprises the following steps:
(1) And (3) modified granulating: sucking the PPC and PBAT raw materials into a mixer, mixing, plasticizing, air-cooling and granulating to obtain a degradable modified mixture;
(2) Plasticizing and foaming: adding the degradable modified mixture into a bubble film machine, plasticizing, extruding and casting to form a film, so as to obtain a degradable shockproof bubble film;
in the step (2), the bubble film is plasticized and extruded, and the film is formed by casting, wherein the temperature of the extruder is as follows: heating the mixture into four areas at 140-150 ℃; die temperature: heating to 150 ℃ in four areas; bubble roll temperature: and (3) adhering the front layer to the roller surface for absorbing bubbles at 70 ℃, and adhering the rear layer to the roller surface for covering gas to prepare the bubble film.
2. The carbon dioxide-based degradable vibration damping bubble film of claim 1, wherein: and (3) sequentially carrying out high-temperature mixing and low-temperature mixing during mixing in the step (1).
3. The carbon dioxide-based degradable vibration damping bubble film of claim 2, wherein: the high-temperature mixing temperature is 70-80 ℃ and the time is 15-25min; the low-temperature mixing temperature is 40-50 ℃ and the time is 5-15min.
4. The carbon dioxide-based degradable vibration damping bubble film of claim 1, wherein: during plasticizing in the step (1), the temperature of the extruder is: heating the mixture into four areas at 145-155 ℃; the die zone temperature was 155 ℃.
5. The carbon dioxide-based degradable vibration damping bubble film of claim 1, wherein: and (3) in the step (1), cooling the plasticized wire material to below 40 ℃ and granulating.
6. The carbon dioxide-based degradable vibration damping bubble film of claim 1, wherein: in the step (2), the air bubble film is plasticized and extruded, and the length-diameter ratio of a screw of an extruder is 30-35:1 during casting film formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111669443.6A CN114292511B (en) | 2021-12-31 | 2021-12-31 | Carbon dioxide-based degradable shockproof bubble film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111669443.6A CN114292511B (en) | 2021-12-31 | 2021-12-31 | Carbon dioxide-based degradable shockproof bubble film and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114292511A CN114292511A (en) | 2022-04-08 |
| CN114292511B true CN114292511B (en) | 2023-11-24 |
Family
ID=80973580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111669443.6A Active CN114292511B (en) | 2021-12-31 | 2021-12-31 | Carbon dioxide-based degradable shockproof bubble film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114292511B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107556711A (en) * | 2017-09-28 | 2018-01-09 | 武汉华丽生物股份有限公司 | A kind of degradable buffer packing bag and preparation method thereof |
| CN111890770A (en) * | 2020-08-12 | 2020-11-06 | 中国科学院长春应用化学研究所 | Bubble buffer packaging composite film, preparation method thereof and bubble bag |
-
2021
- 2021-12-31 CN CN202111669443.6A patent/CN114292511B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107556711A (en) * | 2017-09-28 | 2018-01-09 | 武汉华丽生物股份有限公司 | A kind of degradable buffer packing bag and preparation method thereof |
| CN111890770A (en) * | 2020-08-12 | 2020-11-06 | 中国科学院长春应用化学研究所 | Bubble buffer packaging composite film, preparation method thereof and bubble bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114292511A (en) | 2022-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109177401B (en) | Completely biodegradable blown film, preparation method and application thereof | |
| JP4063856B2 (en) | Method for producing biodegradable polyester resin composition | |
| JP3824547B2 (en) | Biodegradable polyester resin composition, method for producing the same, and foam and molded product obtained therefrom | |
| CN108822514B (en) | Completely biodegradable polylactic acid based blown film and preparation method thereof | |
| CN101245175B (en) | Biodegradation expanded plastic | |
| CN100584886C (en) | Thermoplastic polyurethane composition and method for producing same | |
| CN111040400A (en) | Full-biodegradable sheet and preparation method thereof | |
| CN107603168B (en) | Polylactic acid-based film and preparation method thereof | |
| JPH06502676A (en) | Biodegradable polymer compositions based on starch and thermoplastic polymers | |
| US20080153958A1 (en) | Substantially Completely Biodegradable High Starch Polymer | |
| CN104371296B (en) | Poly-methyl ethylene carbonate composition and preparation method thereof | |
| CN104086777B (en) | PLA (poly lactic acid) modified material and preparation method thereof | |
| CN105667031B (en) | PHA/PLA/PHA coextruded films and its extruding-out process | |
| KR20090026745A (en) | Hydrophobic biodegradable material | |
| JP4223245B2 (en) | Biodegradable polyester resin composition, method for producing the same, and foam and molded product obtained therefrom | |
| CN109181182B (en) | Environment-friendly migration-resistant polyvinyl alcohol full-biodegradable film | |
| CN112552654B (en) | PBAT/PHA/wood flour composition suitable for preparing film and preparation and application thereof | |
| CN103224697B (en) | PHA/PCL blend of a kind of fully biodegradable and preparation method thereof | |
| CN113956630A (en) | Completely biodegradable film and preparation method thereof | |
| CN102702560A (en) | Compound foaming manufacturing method for polypropylene foaming material | |
| CN111234481A (en) | Preparation method of high-toughness low-cost polylactic acid composite material | |
| CN113429754A (en) | Composite filled fully-degradable material composition, film and preparation method thereof | |
| CN113045881A (en) | Thermal-shrinkage degradable environment-friendly film material and preparation method and application method thereof | |
| JP4503215B2 (en) | Lactic acid-based resin composition, peroxide-modified lactic acid-based resin composition, and molded articles thereof | |
| CN114292511B (en) | Carbon dioxide-based degradable shockproof bubble film and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Huanyu Inventor after: Li Jiaye Inventor after: Shi Xiaohua Inventor after: Mu Xize Inventor after: Suo Yamin Inventor after: Gong Xiaohan Inventor before: Wang Huanyu Inventor before: Wang Yusen Inventor before: Mu Xize Inventor before: Liu Cheng Inventor before: Suo Yamin Inventor before: Gong Xiaohan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |