WO2023068447A1 - 수지 조성물 및 이를 포함하는 생분해성 수지 성형품 - Google Patents
수지 조성물 및 이를 포함하는 생분해성 수지 성형품 Download PDFInfo
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- WO2023068447A1 WO2023068447A1 PCT/KR2021/018739 KR2021018739W WO2023068447A1 WO 2023068447 A1 WO2023068447 A1 WO 2023068447A1 KR 2021018739 W KR2021018739 W KR 2021018739W WO 2023068447 A1 WO2023068447 A1 WO 2023068447A1
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- Prior art keywords
- maleic anhydride
- molded article
- weight
- resin molded
- resin composition
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- 229920006167 biodegradable resin Polymers 0.000 title claims abstract description 33
- 239000011342 resin composition Substances 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 41
- 239000004629 polybutylene adipate terephthalate Substances 0.000 claims description 40
- 229920006124 polyolefin elastomer Polymers 0.000 claims description 27
- -1 polybutylene adipate terephthalate Polymers 0.000 claims description 24
- 239000004626 polylactic acid Substances 0.000 claims description 22
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 17
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 13
- 229920006213 ethylene-alphaolefin copolymer Polymers 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 238000007710 freezing Methods 0.000 claims description 7
- 230000008014 freezing Effects 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims 1
- 239000004711 α-olefin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 4
- 229920000229 biodegradable polyester Polymers 0.000 abstract 1
- 239000004622 biodegradable polyester Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 24
- 229920003317 Fusabond® Polymers 0.000 description 9
- 239000000654 additive Substances 0.000 description 9
- 239000004698 Polyethylene Substances 0.000 description 7
- 235000013305 food Nutrition 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 4
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 2
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 2
- FHKPLLOSJHHKNU-INIZCTEOSA-N [(3S)-3-[8-(1-ethyl-5-methylpyrazol-4-yl)-9-methylpurin-6-yl]oxypyrrolidin-1-yl]-(oxan-4-yl)methanone Chemical compound C(C)N1N=CC(=C1C)C=1N(C2=NC=NC(=C2N=1)O[C@@H]1CN(CC1)C(=O)C1CCOCC1)C FHKPLLOSJHHKNU-INIZCTEOSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000012766 organic filler Substances 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000012963 UV stabilizer Substances 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000004148 curcumin Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
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- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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- 235000009566 rice Nutrition 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—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
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic 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
- 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
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
- C08L2203/162—Applications used for films sealable films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- 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
Definitions
- the present invention relates to a resin composition and a biodegradable resin molded article comprising the same.
- Thermoplastic polymer resins have excellent mechanical and chemical properties and are used in various fields such as drinking water containers, medical products, food packaging, food containers, automobile molded products, and agricultural vinyl.
- Thermoplastic polymer resins among others, have excellent mechanical properties, such as polyethylene film, are harmless to the human body, and can be continuously deformed when heat is applied, so they are widely used as hot sealing bags for food packaging or agricultural mulching films.
- Hot-sealing bags for food packaging are widely used for vacuum packaging food, etc., and polyethylene films and the like, which can achieve excellent bonding strength even at a low sealing temperature, are widely used.
- Mulching is a material that covers the surface of the soil when growing crops. Covering the upper surface of the soil with various types of materials can block the growth of weeds, prevent pests and diseases, and thereby reduce the use of pesticides.
- the soil temperature can be easily controlled, beneficial bacteria can be proliferated in the soil, soil erosion can be prevented, and soil moisture can be maintained.
- Such mulching materials include, for example, crop leaves such as rice straw and grass, or polyolefin-based films, and synthetic resins such as polyethylene films are generally used.
- the polyethylene film which is widely used as a hot sealing bag for food packaging or a mulching material, does not decompose in the natural environment and has limitations in recycling.
- discarded plastic such as polyethylene film is introduced into the sea, and is crushed into microplastics of very small size by reflux and sunlight in the sea.
- microplastics are known to be floating in the sea in an uncountable amount of billions to tens of billions or more, which are introduced into the bodies of sea creatures, accumulated in the ecosystem, and affect the entire food chain.
- An object of the present specification is to provide a biodegradable resin composition for a resin product capable of implementing high sealing strength even at a low temperature during hot sealing.
- the present specification is intended to provide a biodegradable resin molded article comprising the resin composition.
- a resin composition comprising polybutylene adipate terephthalate (PBAT), polylactic acid (PLA), and maleic anhydride-modified polyolefin elastomer is provided.
- PBAT polybutylene adipate terephthalate
- PLA polylactic acid
- maleic anhydride-modified polyolefin elastomer is provided.
- the maleic anhydride-modified polyolefin elastomer may be an ethylene-alpha olefin copolymer grafted with maleic anhydride.
- the ethylene-alpha olefin copolymer is a group consisting of ethylene-1-butene, ethylene-1-pentene, ethylene-1-hexene, ethylene-1-heptene, and ethylene-1-octene It may be one or more selected from, ethylene-alpha olefin copolymer.
- the resin composition contains about 1 part by weight to about 50 parts by weight, or about 10 parts by weight to about 100 parts by weight of the polylactic acid, based on 100 parts by weight of the polybutylene adipate terephthalate (PBAT). 30 parts by weight.
- PBAT polybutylene adipate terephthalate
- the resin composition contains about 0.01 part by weight of the maleic anhydride-modified polyolefin elastomer based on 100 parts by weight of the polybutylene adipate terephthalate (PBAT) and polylactic acid in total. to about 10 parts by weight, or about 0.1 to about 5 parts by weight, or about 0.1 to about 1 part by weight.
- PBAT polybutylene adipate terephthalate
- the resin composition is about 0.01 parts by weight to about 10 parts by weight, or about 0.1 parts by weight of the maleic anhydride-modified polyolefin elastomer based on 100 parts by weight of the polybutylene adipate terephthalate (PBAT). to 5 parts by weight.
- PBAT polybutylene adipate terephthalate
- the maleic anhydride-modified polyolefin elastomer has a melting point of 40°C to 60°C and a freezing point of 20°C to 35°C, measured according to ASTM D3418 standard. It may be desirable to
- the maleic anhydride-modified polyolefin elastomer has a melt index value of about 1.3 g/10min to about 2.0 g measured at 190° C. and 21.6 kg according to ASTM D1238 standard. /10 min, more preferably from about 1.5 g/10 min to about 2.0 g/10 min, or greater than about 1.5 g/10 min and less than about 2.0 g/10 min.
- the maleic anhydride-modified polyolefin elastomer has a maleic anhydride graft ratio greater than 0 wt% and less than 1 wt%, or about 0.1 wt% to about 0.9 wt%, or about 0.3 wt % to about 0.7 wt %.
- a biodegradable resin molded article comprising any of the above-described resin compositions is provided.
- the biodegradable resin molded article may be a biodegradable film.
- the biodegradable resin molded article has a tensile strength value of about 250 kg/cm 2 to about 500 kg/cm 2 , or about 250 kg/cm 2 to about 400 kg, measured according to ISO 527 standards. /cm 2 , or about 300 kg/cm 2 to about 400 kg/cm 2 , or about 350 kg/cm 2 to about 380 kg/cm 2 .
- the biodegradable resin molded article has an elongation value of about 200% to about 600%, or about 300% to about 500% measured according to ISO 527 standards. or about 300% to 400%.
- the biodegradable resin molded article may be a hot sealing film.
- the biodegradable resin molded article has a hot sealing initiation temperature value of about 80 ° C to about 120 ° C, or about 100 ° C to about 120 ° C, or about 105 ° C, measured under 2N conditions according to the ASTM F1921 standard. °C to about 115 °C, or about 105 °C to about 110 °C.
- the biodegradable resin molded article may have a sealing strength value of about 2N or more, or about 2N to about 10N, or about 2.5N to about 5N, measured at about 110 ° C. according to the ASTM F1921 standard. there is.
- the biodegradable resin molded article may have a sealing strength value of about 3N or more, or about 3N to about 10N, or about 4N to about 5N, measured at about 114 ° C. according to the ASTM F1921 standard. .
- each layer or element when each layer or element is referred to as being formed “on” or “above” each layer or element, it means that each layer or element is formed directly on each layer or element, or other This means that layers or elements may be additionally formed between each layer or on the object or substrate.
- the inventors of the present invention when using a maleic anhydride-modified polyolefin elastomer in a blending resin obtained by blending polybutylene adipate terephthalate (PBAT) and polylactic acid (PLA), mechanical properties such as elongation and tensile strength It was found that this is very excellent and that high bonding strength can be realized even at a low temperature during hot sealing, and the present invention was completed.
- PBAT polybutylene adipate terephthalate
- PLA polylactic acid
- the resin composition according to one aspect of the present invention includes polybutylene adipate terephthalate (PBAT), polylactic acid (PLA), and maleic anhydride-modified polyolefin elastomer.
- PBAT polybutylene adipate terephthalate
- PLA polylactic acid
- maleic anhydride-modified polyolefin elastomer maleic anhydride-modified polyolefin elastomer
- Polyester-based resins are used in various industrial fields because of their excellent mechanical and chemical properties.
- polybutylene adipate terephthalate (PBAT) is a soft polyester and is biodegradable, so it is in the spotlight as a substitute for polyolefin-based polymers mainly used in packaging materials and agricultural films.
- PBAT polylactic acid
- the resin composition according to one aspect of the present invention includes a maleic anhydride-modified polyolefin elastomer as a compatibilizer component.
- the maleic anhydride-modified polyolefin elastomer may be an ethylene-alpha olefin copolymer grafted with maleic anhydride.
- the ethylene-alpha olefin copolymer grafted with maleic anhydride can increase the compatibility between PBAT and PLA due to its molecular structure, and thus, the resin composition according to one aspect of the present invention has very high elongation And tensile strength can be achieved, and at the same time, high bonding strength can be implemented even at a low temperature during hot sealing.
- the ethylene-alpha olefin copolymer is a group consisting of ethylene-1-butene, ethylene-1-pentene, ethylene-1-hexene, ethylene-1-heptene, and ethylene-1-octene It may be one or more selected from, ethylene-alpha olefin copolymer. Among them, it may be most preferable to use an ethylene-1-octene copolymer grafted with maleic anhydride as a compatibilizer, but the present invention is not necessarily limited thereto.
- the resin composition contains about 1 part by weight to about 50 parts by weight, or about 10 parts by weight to about 100 parts by weight of the polylactic acid, based on 100 parts by weight of the polybutylene adipate terephthalate (PBAT). 30 parts by weight.
- PBAT polybutylene adipate terephthalate
- the resin composition contains about 0.01 part by weight of the maleic anhydride-modified polyolefin elastomer based on 100 parts by weight of the polybutylene adipate terephthalate (PBAT) and polylactic acid in total. to about 10 parts by weight, or about 0.1 to about 5 parts by weight, or about 0.1 to about 1 part by weight.
- PBAT polybutylene adipate terephthalate
- the resin composition is about 0.01 parts by weight to about 10 parts by weight, or about 0.1 parts by weight of the maleic anhydride-modified polyolefin elastomer based on 100 parts by weight of the polybutylene adipate terephthalate (PBAT). to 5 parts by weight.
- PBAT polybutylene adipate terephthalate
- maleic anhydride-modified polyolefin elastomer If too little maleic anhydride-modified polyolefin elastomer is included, compatibility between PBAT and PLA is reduced, and blending may not be achieved, and maleic anhydride-modified polyolefin elastomer When it is included too much, a problem of deterioration of mechanical properties and biodegradability may occur.
- the maleic anhydride-modified polyolefin elastomer has a melting point of 40°C to 60°C and a freezing point of 20°C to 35°C, measured according to ASTM D3418 standard. It may be desirable to
- the maleic anhydride-modified polyolefin elastomer has a melt index value of about 1.3 g/10min to about 2.0 g measured at 190° C. and 21.6 kg according to ASTM D1238 standard. /10 min, more preferably from about 1.5 g/10 min to about 2.0 g/10 min, or greater than about 1.5 g/10 min and less than about 2.0 g/10 min.
- the maleic anhydride-modified polyolefin elastomer has a maleic anhydride graft ratio greater than 0 wt% and less than 1 wt%, or about 0.1 wt% to about 0.9 wt%, or about 0.3 wt % to about 0.7 wt %.
- a biodegradable resin molded article comprising any of the above-described resin compositions is provided.
- the resin composition according to an embodiment of the present invention may further include other additives.
- additives general additives used in molding a resin composition in the technical field to which the present invention belongs, that is, in the thermoplastic polymer field, may be used without particular limitation.
- Additives may include inorganic fillers, organic fillers, heat stabilizers, UV stabilizers, and the like.
- the additive may be included in an amount of about 1 to about 30 parts by weight based on a total of 100 parts by weight of the polybutylene adipate terephthalate (PBAT) and polylactic acid.
- PBAT polybutylene adipate terephthalate
- the biodegradable resin molded article may be a biodegradable film.
- the biodegradable resin molded article has a tensile strength value of about 250 kg/cm 2 to about 500 kg/cm 2 , or about 250 kg/cm 2 to about 400 kg, measured according to ISO 527 standards. /cm 2 , or from about 300 kg/cm 2 to about 400 kg/cm 2 , or from about 350 kg/cm 2 to about 380 kg/cm 2 , which can have very good tensile strength values.
- the biodegradable resin molded article has an elongation value measured according to the ISO 527 standard of about 200% to about 600%, or about 300% to about 500%. or about 300% to 400%, with very good elongation values.
- the biodegradable resin molded article according to one embodiment of the present invention can be used for purposes such as agricultural mulching films.
- the biodegradable resin molded article may be a hot sealing film.
- the biodegradable resin molded article has a hot sealing initiation temperature value of about 80 ° C to about 120 ° C, or about 100 ° C to about 120 ° C, or about 105 ° C, measured under 2N conditions according to the ASTM F1921 standard. °C to about 115 °C, or about 105 °C to about 110 °C.
- the joint strength of 2N is a minimum joint strength value for evaluating hot sealing, and when the joint strength is 2N or more, it can be considered that hot sealing is implemented without any particular problem.
- the biodegradable resin molded article according to one embodiment of the present invention can implement hot sealing even at a very low temperature compared to the conventional ones.
- the biodegradable resin molded article has a sealing strength value of about 2N or more, or about 2N to about 10N, or about 2.5N to about 5N, measured at about 110 ° C. according to the ASTM F1921 standard.
- the biodegradable resin molded article may have a sealing strength value of about 3N or more, or about 3N to about 10N, or about 4N to about 5N, measured at about 114 ° C. according to the ASTM F1921 standard.
- the biodegradable resin molded article according to one embodiment of the present invention can implement a high sealing strength value even at a very low temperature compared to the prior art.
- the resin composition of the present invention has excellent biodegradability, excellent mechanical properties, and can provide resin products such as hot sealing films and hot sealing bags that can realize high sealing strength even at low temperatures during hot sealing. can
- Tunhe's TH801T product was prepared.
- ESUN's (AI-1001) product was prepared.
- the compatibilizer As the compatibilizer, the following products were used.
- FUSABOND N493 maleic anhydride modified ethylene-1-octene copolymerized elastomer, hereinafter 493 ); Density: 0.87 g/cm 3 ; melting point: 50 °C; Freezing point: 28 ° C; Melt index (190 °C 21.6Kg): 1.6g/10min; Malein graft ratio: 0.5 wt%
- KT-915 maleic anhydride modified ethylene-propylene-diene elastomer, hereinafter referred to as 915 ): Density: 0.86-0.88 g/cm 3 ; Melt index (190 °C 2.16Kg): 0.5 ⁇ 1.5 g/10min; Malein graft ratio: 1.0 wt%
- FUSABOND P353 (hereinafter 353 ); Density: 0.904 g/cm 3 ; Melting point: 132 ° C; Freezing point: 92 ° C; Melt Index (21.6g at 190°C): 22.4g/10min; Malein graft ratio: 1.3 wt%
- FUSABOND E100 (hereinafter 100 ); Density: 0.954 g/cm 3 ; Melting point: 134 ° C; Freezing point: 115 ° C; Melt index (190 °C 21.6Kg): 2g/10min; Malein graft ratio: 0.8 wt%
- FUSABOND E588 (hereinafter 588 ); Density: 0.93 g/cm 3 ; Melting point: 120 ° C; Freezing point: 102 ° C; Melt index (190 °C 2.16Kg): 1.75g/10min; Malein graft ratio: 0.8 wt%
- Calcium carbonate was used as an inorganic additive.
- a resin composition was prepared according to the composition of Table 1 below. Specifically, the PBAT, PLA, and compatibilizer were added to a twin-screw extruder (32 mm) according to the composition in the table below, and extrusion was performed under the conditions of a barrel temperature: 200 ° C, feed: 30 kg / hr, and 300 rpm, and the resin composition was prepared in pellet form.
- the specimen was prepared in a bar-shaped width x length (10 mm x 150 mm).
- the sealing strength value according to the sealing temperature was measured according to the ASTM F1921 standard, and the temperature value at which 2N was obtained was determined as the hot sealing initiation temperature value.
- Hot sealing initiation temperature (based on 2N; Unit: °C) hot sealing strength (Based on 108 °C, 110 °C, 112 °C, 114 °C; Unit: N)
- Example 1-1 363, 299 437, 480 108 2.4, 2.62, 3.23, 4.31
- Example 1-2 283, 269 372, 499 112 1.88.
- the resin composition according to an embodiment of the present invention can achieve very high elongation and tensile strength, and at the same time, can realize high bonding strength even at a low temperature during hot sealing.
- a resin composition was prepared according to the composition of Table 3 below. Specifically, 80 parts by weight of PBAT, 20 parts by weight of PLA, 20 parts by weight of inorganic additives, and a compatibilizer were added to a twin screw extruder (32 mm) according to the composition in the table below, barrel temperature: 200 ° C., feed: 30 kg / hr, Extrusion was performed at 300 rpm to prepare a resin composition in the form of pellets.
- Comparative Example 2-1 in which no compatibilizer was used, or a maleic anhydride-modified polyolefin-based compatibilizer, not a maleic anhydride-modified polyolefin elastomer, was used. It can be seen that the other comparative examples are inferior in mechanical properties to those of the examples, have a significantly high hot-sealing start temperature, and have very low hot-sealing strength values within the same temperature.
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Abstract
Description
PBAT (중량부) |
PLA (중량부) |
무기 첨가제 (중량부) |
상용화제 (중량부) |
|
실시예 1-1 | 80 | 20 | 20 | FUSABOND N493(0.5) |
실시예 1-2 | 80 | 20 | 20 | KT-915(0.2) |
참고예 1-1 | 25 | 75 | 20 | FUSABOND N493 (0.5) |
참고예 1-2 | 25 | 75 | 20 | FUSABOND N493(1.0) |
참고예 1-3 | 25 | 75 | 20 | FUSABOND N493(5.0) |
참고예 1-4 | 25 | 75 | 20 | FUSABOND N493(10.0) |
인장 강도 (MD, TD; 단위: kg/cm2) |
신율 (MD, TD; 단위: %) |
핫 실링 개시 온도 (2N 기준; 단위: ℃) |
핫 실링 강도 (108 ℃, 110 ℃, 112 ℃, 114 ℃ 기준; 단위: N) |
|
실시예 1-1 | 363, 299 | 437, 480 | 108 | 2.4, 2.62, 3.23, 4.31 |
실시예 1-2 | 283, 269 | 372, 499 | 112 | 1.88. 1.85, 2.43, 2.02 |
참고예 1-1 | 398 | 2.48, - | 108 | 1.50, 2.03, 3.77, 2.99 |
참고예 1-2 | 389, - | 3.38, - | 106 | 2.06, 2.28, 2.94, 2.74 |
참고예 1-3 | 390, - | 191, - | 116 | 1.48, 1.35, 1.73, 1.47 |
참고예 1-4 | 363, - | 162, - | 122 | 1.30, 1.36, .155, 1.33 |
상용화제 종류 |
중량부 | |
비교예 2-1 | - | 0 |
비교예 2-2 | 353 | 0.5 |
비교예 2-3 | 1 | |
비교예 2-4 | 3 | |
비교예 2-5 | 100 | 0.5 |
비교예 2-6 | 1 | |
비교예 2-7 | 3 | |
비교예 2-8 | 588 | 0.5 |
비교예 2-9 | 1 | |
비교예 2-10 | 3 |
인장 강도 kg/cm2 |
신율 % |
핫 실링 개시 온도 (2N 기준; 단위: ℃) |
핫 실링 강도 (단위: N) |
||||
114℃ | 116℃ | 118℃ | 120℃ | ||||
비교예 2-1 | 303 | 334 | 118 | 1.83 | 1.75 | 2.72 | 3.17 |
비교예 2-2 | 271 | 295 | 118 | 1.64 | 1.61 | 2.11 | 2.29 |
비교예 2-3 | 263 | 299 | 120 | 1.46 | 1.62 | 1.92 | 2.45 |
비교예 2-4 | 257 | 266 | - | - | - | - | - |
비교예 2-5 | 275 | 327 | 118 | 1.63 | 1.85 | 2.1 | 2.19 |
비교예 2-6 | 279 | 321 | 118 | 1.33 | 1.89 | 2.11 | 2.28 |
비교예 2-7 | 269 | 292 | - | - | - | - | - |
비교예 2-8 | 273 | 310 | 120 | 1.34 | 1.83 | 1.96 | 2.18 |
비교예 2-9 | 264 | 321 | 116 | 1.79 | 2.24 | 2.22 | 2.41 |
비교예 2-10 | 269 | 290 | - | - | - | - | - |
Claims (17)
- 폴리부틸렌아디페이트테레프탈레이트(PBAT), 폴리락트 산(PLA), 및 무수 말레인 산(maleic anhydride) 변성 폴리올레핀 엘라스토머를 포함하는, 수지 조성물.
- 제1항에 있어서,상기 무수 말레인 산 변성 폴리올레핀 엘라스토머는, 무수 말레인 산이 그라프트된 에틸렌-알파올레핀 공중합체인, 수지 조성물.
- 제1항에 있어서,상기 에틸렌-알파올레핀 공중합체는, 에틸렌-1-부텐, 에틸렌-1-펜텐, 에틸렌-1-헥센, 에틸렌-1-헵텐, 및 에틸렌-1-옥텐으로 이루어진 군에서 선택된 1종 이상인, 에틸렌-알파올레핀 공중합체인, 수지 조성물.
- 제1항에 있어서,상기 폴리부틸렌아디페이트테레프탈레이트(PBAT) 100 중량부에 대하여, 상기 폴리락트 산 1 내지 50 중량부를 포함하는, 수지 조성물.
- 제1항에 있어서,상기 폴리부틸렌아디페이트테레프탈레이트(PBAT) 및 폴리락트 산 총 100 중량부에 대하여, 상기 무수 말레인 산(maleic anhydride) 변성 폴리올레핀 엘라스토머 0.01 내지 10 중량부를 포함하는, 수지 조성물.
- 제1항에 있어서,상기 폴리부틸렌아디페이트테레프탈레이트(PBAT) 100 중량부에 대하여, 상기 무수 말레인 산(maleic anhydride) 변성 폴리올레핀 엘라스토머 0.01 내지 10 중량부를 포함하는, 수지 조성물.
- 제1항에 있어서,상기 무수 말레인 산(maleic anhydride) 변성 폴리올레핀 엘라스토머는, ASTM D3418 기준에 따라 측정한 녹는 점(melting point)이 40℃ 내지 60℃이고, 어는 점이 20℃ 내지 35℃인, 수지 조성물.
- 제1항에 있어서,상기 무수 말레인 산(maleic anhydride) 변성 폴리올레핀 엘라스토머는, ASTM D1238 기준에 따라 190℃, 및 21.6kg 조건에서 측정한 용융 지수 값이 1.3 g/10min 내지 2.0 g/10min 인, 수지 조성물.
- 제1항에 있어서,상기 무수 말레인 산(maleic anhydride) 변성 폴리올레핀 엘라스토머는, 무수 말레인 산의 그래프트 비율이 0 wt% 초과 1wt% 미만인, 수지 조성물.
- 제1항 내지 제9항 중 어느 한 항에 따른 수지 조성물을 포함하는, 생분해성 수지 성형품.
- 제10항에 있어서,상기 생분해성 수지 성형품은 생분해성 필름인, 생분해성 수지 성형품.
- 제10항에 있어서,ISO 527 기준에 따라 측정한 인장 강도 값이 250 내지 500kgf/cm2인, 생분해성 수지 성형품.
- 제10항에 있어서,ISO 527 기준에 따라 측정한 신율 값이 200 내지 600%인, 생분해성 수지 성형품.
- 제10항에 있어서,핫 실링 필름인, 생분해성 수지 성형품.
- 제10항에 있어서,ASTM F1921 기준에 따라 2N 조건에서 측정한 핫 실링 개시 온도 값이 80℃ 내지 120℃인, 생분해성 수지 성형품.
- 제10항에 있어서,ASTM F1921 기준에 따라 110℃ 조건에서 측정한 실링 강도 값이 2N 이상인, 생분해성 수지 성형품.
- 제10항에 있어서,ASTM F1921 기준에 따라 114℃ 조건에서 측정한 실링 강도 값이 3N 이상인, 생분해성 수지 성형품.
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- 2021-12-10 WO PCT/KR2021/018739 patent/WO2023068447A1/ko active Application Filing
- 2021-12-10 CN CN202180098801.4A patent/CN117897449A/zh active Pending
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WO2021007534A1 (en) * | 2019-07-10 | 2021-01-14 | BiologiQ, Inc. | Polymeric articles comprising blends of pbat, pea and a carbohydrate-based polymeric material |
KR20210138485A (ko) | 2020-05-12 | 2021-11-19 | 삼성전자주식회사 | 단말 장치, 조리 기기, 단말 장치의 제어 방법 및 조리 기기의 제어 방법 |
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