CN109825045A - Graphene composite biomass reinforced PBS/PBAT biodegradable composite material and preparation method thereof - Google Patents
Graphene composite biomass reinforced PBS/PBAT biodegradable composite material and preparation method thereof Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 62
- 239000002028 Biomass Substances 0.000 title claims abstract description 51
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229920001896 polybutyrate Polymers 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 42
- -1 polybutylene adipate-terephthalate Polymers 0.000 claims abstract description 22
- 239000004631 polybutylene succinate Substances 0.000 claims abstract description 19
- 229920002961 polybutylene succinate Polymers 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 8
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- 239000000843 powder Substances 0.000 claims description 33
- 239000006185 dispersion Substances 0.000 claims description 15
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- 230000002708 enhancing effect Effects 0.000 claims description 10
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- 235000013339 cereals Nutrition 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
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- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
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- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- GJYLKIZKRHDRER-UHFFFAOYSA-N calcium;sulfuric acid Chemical compound [Ca].OS(O)(=O)=O GJYLKIZKRHDRER-UHFFFAOYSA-N 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 239000001993 wax Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 2
- 229920005862 polyol Polymers 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 125000000969 xylosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)CO1)* 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 239000004200 microcrystalline wax Substances 0.000 claims 1
- 235000019808 microcrystalline wax Nutrition 0.000 claims 1
- 239000008187 granular material Substances 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000004629 polybutylene adipate terephthalate Substances 0.000 abstract 1
- 238000006065 biodegradation reaction Methods 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 4
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- 241001330002 Bambuseae Species 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
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- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
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- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 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
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a graphene composite biomass reinforced PBS/PBAT biodegradable composite material and a preparation method thereof, which comprises the steps of putting polybutylene adipate-terephthalate, polybutylene succinate, graphene composite biomass, an inorganic filler and a lubricant in a formula ratio into a mixer, mixing at a high speed to 110-130 ℃, then cold mixing to 50-90 ℃ and mixing for 5-15 minutes to obtain a primary mixed material; adding the obtained primary mixed material into a double-screw extruder for extrusion and blending, and cutting the mixture into granules by a plastic granulator; and finally adding the prepared granules into a double-screw extruder to extrude and press a plate, thus obtaining the graphene composite biomass reinforced PBS/PBAT biodegradable composite material. According to the invention, through the graphene composite biomass, the dispersibility of the biomass in the biodegradable material is greatly improved, the interface compatibility of the biomass with PBS and PBAT is improved, the mechanical property of the biomass is finally improved, the consumption of plastic matrix materials is reduced, the cost of the biodegradable material is reduced, and the large-scale market application is facilitated.
Description
Technical field
The present invention relates to polymer blend compositions, belong to field of polymer composite material, and in particular to a kind of graphene
Composite biomass enhances PBS/PBAT biological degradable composite material and preparation method thereof.
Background technique
Biodegradation material is one kind by microorganism and the intracorporal enzyme catabolism generation carbon dioxide of animals and plants and water
Environment-friendly materials.The straight polymer corrosion resistance usually prepared is preferable, is not easy to be decomposed by the microorganisms, but by into polymer
The additives such as plasticizer, antioxidant are added and change its property, so that it may reduce its effect for resisting bioerosion, realize biology
Degradation.Biodegradation material is mainly synthesized by renewable resources such as cereal, more competitive compared to conventional petroleum-based plastics,
Biodegradation material is used widely in agricultural, medical treatment, food packaging applications at present.But since biodegradation material drops
The solution time is long, and production cost is higher, poor mechanical property etc., limits its application in each field.
Poly butylene succinate (PBS) and poly terephthalic acid-tetramethylene adipate (PBAT) have good life
Object degradation property, simple production process are considered as most promising environmental type high molecular material in terms of packaging material.
But PBS/PBAT biodegradation material mechanical property is poor, constrains its mass market application.Current many researchers
Attempting addition biomass such as lignin, wood powder, bamboo powder etc. improves the mechanical property of PBS/PBAT biodegradation material, but effect is not
Obviously.
Summary of the invention
Goal of the invention: the technical problem to be solved in the present invention is to provide a kind of graphene composite biomass to enhance PBS-PBAT
Biological degradable composite material and preparation method thereof, with solve PBAT biodegradation material performance of the existing technology it is bad and at
The problems such as this is high.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of graphene composite biomass enhances PBS/PBAT biological degradable composite material, it by following mass fraction group
Part composition:
Wherein, the graphene composite biomass is prepared using liquid phase method: in a solvent by biomass dispersion, being mixed into
Even dispersion liquid adds 1~2% graphene oxide of dispersion liquid quality, 6~8h of insulation reaction at 50~60 DEG C, warp
It filters, obtained after washing and drying.After biomass and graphene are compound, biomass is greatly improved in biodegradation material
Dispersibility, improve the interface compatibility of biomass Yu PBS and PBAT, finally obtain the mechanical property of biodegradation material
It is promoted.
Preferably, the biomass is lignin powder, wood powder, bamboo powder, straw powder, furfural dregs, cotton stalk, xylose residue and rice husk
Any one or the combination of several of them in powder.
It is highly preferred that the biomass is lignin powder, the lignin powder is enzymolysis xylogen, papermaking lignin, alkali
Lignin or organic solvent lignin.
Wherein, enzymolysis xylogen is industrial enzymolysis xylogen, extracts to obtain through organic solvent by cellulosic ethanol.
Wherein, organic solvent lignin is to extract to obtain by dimethyl sulfoxide and dioxane.
Wherein, after alkali lignin is by 2~3% sodium hydroxide dissolution, then as obtained by acid deposition.
Wherein, papermaking lignin is by the concentrated evaporation of black liquid again through obtained by acid deposition.
In component, the inorganic filler is Paris white, sulfuric acid calcium powder, silicic acid powder, carbon black powder, talcum powder and glass fibre
Any one or the combination of several of them in powder.
The lubricant is polyethylene wax, stearic acid, calcium stearate, zinc stearate, polyol ester, oleamide, crystallite
Any one or the combination of several of them in paraffin and the double hard amides of ethylene.
Preferably, the polyadipate-butylene terephthalate fusing point be 130~150 DEG C, weight average molecular weight be 8~
100000, molecular weight dispersity is 2~2.5.
The poly butylene succinate is flexibilized grade PBS of the fusing point at 110~120 DEG C.
The present invention further provides the systems of above-mentioned graphene composite biomass enhancing PBS-PBAT biological degradable composite material
Preparation Method includes the following steps:
Step 1: polyadipate-butylene terephthalate of formula ratio, poly butylene succinate, graphene is multiple
It is then cold to mix to 50~90 to 110~130 DEG C that symphysis substance, inorganic filler and lubricant are placed in elder generation's mixed at high speed in mixing machine
DEG C mixing 5~15 minutes, obtain just mixed material；
Step 2: the first mixed material that step 1 is obtained is added to squeeze out in double screw extruder and be blended, temperature 150
~200 DEG C, revolving speed is 200~400rpm, is cut into pellet using plastic grain cutting machine；
Step 3: pellet prepared by step 2 being added in double screw extruder and carries out extrusion pressing plate, temperature 150
~200 DEG C, revolving speed is 200~400rpm, obtains graphene composite biomass enhancing PBS-PBAT biological degradable composite material.
Wherein, step 1 first the mixed mixed purpose cold again of heat be to ensure that plastics will not aging due to high temperature, lead to material property
Decline.
The utility model has the advantages that
The present invention greatly improves dispersion of the biomass in biodegradation material by graphene composite biomass
Property, the interface compatibility of biomass Yu PBS and PBAT is improved, its mechanical property is finally promoted, while also reducing plastics base
The dosage of body material reduces the cost of biodegradation material, is conducive to mass market application.
Detailed description of the invention
The present invention is done with reference to the accompanying drawings and detailed description and is further illustrated, of the invention is above-mentioned
And/or otherwise advantage will become apparent.
Fig. 1 is the PBS/PBAT biological degradable composite material scanning electron microscope (SEM) photograph that embodiment 3 is prepared.
Specific embodiment
According to following embodiments, the present invention may be better understood.
Embodiment 1
In ethanol by enzymolysis xylogen dispersion, it is mixed into uniform dispersion liquid, adds 2% oxygen of dispersion liquid quality
Graphite alkene, the insulation reaction 6h at 60 DEG C obtain graphene composite biomass after suction filtration, washing and drying；
Take 100 parts of polyadipate-butylene terephthalate, 50 parts of poly butylene succinate, graphene compound bio
75 parts of matter, 20 parts of Paris white, 30 parts of sulfuric acid calcium powder powder, 3 parts of polyethylene wax be placed in mixing machine first mixed at high speed to 130 DEG C,
Then cold mix to 90 DEG C mixes 5 minutes, obtains just mixed material；
Obtained first mixed material is added to squeeze out in double screw extruder and is blended, temperature is 200 DEG C, and revolving speed is
400rpm is cut into pellet using plastic grain cutting machine；
Prepared pellet is added in double screw extruder and carries out extrusion pressing plate, temperature is 200 DEG C, and revolving speed is
400rpm obtains graphene composite biomass enhancing PBS-PBAT biological degradable composite material.
Embodiment 2
In ethanol by wood powder dispersion, it is mixed into uniform dispersion liquid, adds 1% graphite oxide of dispersion liquid quality
Alkene, the insulation reaction 8h at 50 DEG C obtain graphene composite biomass after suction filtration, washing and drying；
Take 100 parts of polyadipate-butylene terephthalate, 10 parts of poly butylene succinate, graphene compound bio
10 parts of matter, 5 parts of silicic acid powder, 0.1 part of stearic acid be placed in mixing machine first mixed at high speed to 110 DEG C, then cold mix to 50 DEG C mixes
15 minutes, obtain just mixed material；
Obtained first mixed material is added to squeeze out in double screw extruder and is blended, temperature is 150 DEG C, and revolving speed is
200rpm is cut into pellet using plastic grain cutting machine；
Prepared pellet is added in double screw extruder and carries out extrusion pressing plate, temperature is 150 DEG C, and revolving speed is
200rpm obtains graphene composite biomass enhancing PBS-PBAT biological degradable composite material.
Embodiment 3
Bamboo powder is distributed in tetrahydrofuran solution, 2% graphene oxide of dispersion liquid quality is added, at 50 DEG C
Insulation reaction 8h obtains graphene composite biomass after suction filtration, washing and drying；
Take 100 parts of polyadipate-butylene terephthalate, 30 parts of poly butylene succinate, graphene compound bio
45 parts of matter, 10 parts of carbon black powder, 10 parts of talcum powder, 2 parts of ethylene bis stearamide be placed in mixing machine first mixed at high speed to 120 DEG C,
Then cold mix to 70 DEG C mixes 10 minutes, obtains just mixed material；
Obtained first mixed material is added to squeeze out in double screw extruder and is blended, temperature is 200 DEG C, and revolving speed is
300rpm is cut into pellet using plastic grain cutting machine；
Prepared pellet is added in double screw extruder and carries out extrusion pressing plate, temperature is 200 DEG C, and revolving speed is
300rpm obtains graphene composite biomass enhancing PBS-PBAT biological degradable composite material.The biological degradable composite material
Scanning electron microscope (SEM) photograph is as shown in Figure 1, visible material surfacing, biological material distribution are more uniform.
Comparative example 1
Take 100 parts of polyadipate-butylene terephthalate, 50 parts of poly butylene succinate, 75 parts of straw powder, carbonic acid
20 parts of calcium powder, 30 parts of sulfuric acid calcium powder, 3 parts of calcium stearate be placed in mixing machine first mixed at high speed to 130 DEG C, it is then cold to mix to 90 DEG C
Mixing 5 minutes obtains just mixed material；
Obtained first mixed material is added to squeeze out in double screw extruder and is blended, temperature is 200 DEG C, and revolving speed is
400rpm is cut into pellet using plastic grain cutting machine；
Prepared pellet is added in double screw extruder and carries out extrusion pressing plate, temperature is 200 DEG C, and revolving speed is
400rpm obtains graphene composite biomass enhancing PBS-PBAT biological degradable composite material.
Comparative example 2
Take 100 parts of polyadipate-butylene terephthalate, 30 parts of poly butylene succinate, 45 parts of glass fiber powder,
10 parts of carbon black powder, 10 parts of talcum powder, 2 parts of ethylene bis stearamide be placed in mixing machine first mixed at high speed to 120 DEG C, it is then cold mixed
It is mixed 10 minutes to 70 DEG C, obtains just mixed material；
Obtained first mixed material is added to squeeze out in double screw extruder and is blended, temperature is 200 DEG C, and revolving speed is
300rpm is cut into pellet using plastic grain cutting machine；
Prepared pellet is added in double screw extruder and carries out extrusion pressing plate, temperature is 200 DEG C, and revolving speed is
300rpm obtains graphene composite biomass enhancing PBS-PBAT biological degradable composite material.
The biodegradation material prepared to Examples 1 to 3, comparative example 1,2 is tested for the property, and the results are shown in Table 1.Wherein,
Biodegradation material performance evaluation mode and implementation standard are as follows:
Tensile property test: it is carried out by ISO 527-2 standard, specimen size 160*10*4mm, tensile speed 5mm/
min；
Bending property test: being executed, specimen size 80*10*4mm, rate of bending 5mm/min by 178 standard of ISO,
Span is 60mm, and bending modulus is carried out by tangential direction.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Embodiment 2 | |
| Tensile strength (MPa) | 53 | 55 | 58 | 49 | 45 |
| Stretch modulus (MPa) | 1591 | 1564 | 1582 | 1482 | 1476 |
| Bending strength (MPa) | 85 | 88 | 92 | 79 | 71 |
| Bending modulus (MPa) | 1756 | 1798 | 1907 | 1696 | 1582 |
| 6 months compost degradation rates (%) | > 99% | > 99% | > 99% | > 99% | > 99% |
Embodiment 1 and comparative example 1 are compared, it can be found that biodegradation material can be enhanced after biomass and graphene are compound
Tensile strength and bending strength, it was demonstrated that biomass and graphene it is compound after, in biodegradation material dispersibility with it is compatible
Property get a promotion, and then improve the mechanical property of biodegradation material, and still there is good biodegradability.
Embodiment 3 and comparative example 1, comparative example 2 are compared, it can be found that after graphene composite biomass is added, biology drop
Every mechanical property of solution material is promoted, it was demonstrated that biodegradation material, which is added, in biomass can improve dispersibility, work as biology
After matter and graphene are compound, mechanical property is greatly improved, and still has good biodegradability.And reduce degradation modeling
The dosage of material, reduces production cost, is conducive to mass market application.
The present invention provides a kind of graphene composite biomass enhancing PBS-PBAT biological degradable composite material and its preparations
The thinking and method of method, there are many method and the approach for implementing the technical solution, and the above is only of the invention preferred
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.In the present embodiment
The available prior art of each component part not yet explicitly is realized.
Claims (9)
1. a kind of graphene composite biomass enhances PBS/PBAT biological degradable composite material, which is characterized in that it is by following matter
Measure the component composition of number:
2. graphene composite biomass according to claim 1 enhances PBS/PBAT biological degradable composite material, feature
It is, the graphene composite biomass is prepared using liquid phase method: in a solvent by biomass dispersion, is mixed into uniform dispersion
Liquid adds 1~2% graphene oxide of dispersion liquid quality, and 6~8h of insulation reaction at 50~60 DEG C is filtered, washed
It is obtained with after drying.
3. graphene composite biomass according to claim 2 enhances PBS/PBAT biological degradable composite material, feature
It is, the biomass is any in lignin powder, wood powder, bamboo powder, straw powder, furfural dregs, cotton stalk, xylose residue and powdered rice hulls
One or more of combinations.
4. graphene composite biomass according to claim 3 enhances PBS/PBAT biological degradable composite material, feature
It is, the lignin powder is enzymolysis xylogen, papermaking lignin, alkali lignin or organic solvent lignin.
5. graphene composite biomass according to claim 1 enhances PBS/PBAT biological degradable composite material, feature
It is, the inorganic filler is any in Paris white, sulfuric acid calcium powder, silicic acid powder, carbon black powder, talcum powder and glass fiber powder
One or more of combinations.
6. graphene composite biomass according to claim 1 enhances PBS/PBAT biological degradable composite material, feature
It is, the lubricant is polyethylene wax, stearic acid, calcium stearate, zinc stearate, polyol ester, oleamide, microcrystalline wax
With any one or the combination of several of them in the double hard amides of ethylene.
7. graphene composite biomass according to claim 1 enhances PBS/PBAT biological degradable composite material, feature
It is, the polyadipate-butylene terephthalate fusing point is 130~150 DEG C, and weight average molecular weight is 8~100,000, molecular weight
Dispersion degree is 2~2.5.
8. graphene composite biomass according to claim 1 enhances PBS/PBAT biological degradable composite material, feature
It is, the poly butylene succinate is flexibilized grade PBS of the fusing point at 110~120 DEG C.
9. graphene composite biomass described in claim 1 enhances the preparation method of PBS/PBAT biological degradable composite material,
It is characterized in that, includes the following steps:
Step 1: by polyadipate-butylene terephthalate of formula ratio, poly butylene succinate, the compound life of graphene
Substance, inorganic filler and lubricant are placed in mixing machine first mixed at high speed to 110~130 DEG C, and then cold mix to 50~90 DEG C is mixed
It closes 5~15 minutes, obtains just mixed material；
Step 2: the first mixed material that step 1 is obtained be added in double screw extruder squeeze out be blended, temperature be 150~
200 DEG C, revolving speed is 200~400rpm, is cut into pellet using plastic grain cutting machine；
Step 3: pellet prepared by step 2 being added in double screw extruder and carries out extrusion pressing plate, temperature be 150~
200 DEG C, revolving speed is 200~400rpm, obtains graphene composite biomass enhancing PBS/PBAT biological degradable composite material.
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| CN114891324A (en) * | 2022-04-26 | 2022-08-12 | 南京工业大学 | Flame-retardant modified material with cross-linked grid structure, and preparation method and application thereof |
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| CN112876819A (en) * | 2021-01-18 | 2021-06-01 | 山东阜坤新材料有限公司 | Biodegradable high-weather-resistance graphene in-situ polymerization copolyester mulch film and preparation process thereof |
| CN113604011A (en) * | 2021-08-03 | 2021-11-05 | 中北大学 | Preparation method of full-biodegradable graphene-based PBAT packaging bag |
| CN114891324A (en) * | 2022-04-26 | 2022-08-12 | 南京工业大学 | Flame-retardant modified material with cross-linked grid structure, and preparation method and application thereof |
| CN114891324B (en) * | 2022-04-26 | 2023-04-11 | 南京工业大学 | Flame-retardant modified material with cross-linked grid structure, and preparation method and application thereof |
| CN115093721A (en) * | 2022-06-07 | 2022-09-23 | 甡物科技(深圳)有限公司 | Tea fiber/PHBV/PBAT ternary composite material and preparation method and application thereof |
| CN115819847A (en) * | 2022-11-08 | 2023-03-21 | 环霆科技(宁波)有限公司 | Daily necessity ingredient for extrusion processing under household compost condition |
| CN116041989A (en) * | 2023-01-10 | 2023-05-02 | 聚能新材料科技(荆门)有限公司 | Biomass carbon sphere, preparation method thereof, antistatic composite material and preparation method thereof |
| CN116285252A (en) * | 2023-03-21 | 2023-06-23 | 海南正翔科技发展有限公司 | Modified mica toughened PBAT/PBS biodegradable material and preparation method thereof |
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