WO2009139508A1 - Composites of kenaf micro fiber with polypropylene or polylactic acid - Google Patents
Composites of kenaf micro fiber with polypropylene or polylactic acid Download PDFInfo
- Publication number
- WO2009139508A1 WO2009139508A1 PCT/JP2009/059479 JP2009059479W WO2009139508A1 WO 2009139508 A1 WO2009139508 A1 WO 2009139508A1 JP 2009059479 W JP2009059479 W JP 2009059479W WO 2009139508 A1 WO2009139508 A1 WO 2009139508A1
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- WIPO (PCT)
- Prior art keywords
- kenaf
- polypropylene
- fiber
- composite material
- weight
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/203—Solid polymers with solid and/or liquid additives
-
- 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
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/045—Reinforcing macromolecular compounds with loose or coherent fibrous material with vegetable or animal fibrous material
-
- 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
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/10—Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
Definitions
- the present invention relates to a composite material and a method for manufacturing the same for application of automotive components.
- the present invention relates to a high strength and environmentally friendly composite material composed of kenaf bast micro fiber and polypropylene (PP) or polylactic acid (PLA) .
- Some advantages using natural fibers compared to sintetic fibers are renewable, biodegradable, recyclable, non toxic to environment and health, lighter density, better mechanical properties, non abrasive to toolls, and lower price (Zimmermann et al . 2004, Oksman et al . 2003, Wambua et al. 2003, Mohanty et al. 2002, Leao et al . 1998) .
- Utilization of natural fibers reduce car weight up to 40%, lower energy to produce natural fiber (4 GJ/ton) compare to glass fiber (30 GJ/ton) , and production of glass fiber release toxic gases such as CO 2 , NO x , SO x and dust (Marsh 2003) .
- Natural fibers are hydrophilic in character, when it combined with polymer matrix that are hydrophobic then they have a lower compatibility. Natural fibers are also required low processing temperature to about 200 0 C to prevent fiber degradation (Nakagaito et al. 2005) . To overcome the drawbacks, addition of coupling agent in the matrix and improve processing methods are applied.
- Kenaf is an annual plant that can reach 4 to 5 m high and 4 to 5 cm in stem diameter, it grows rapidly. Kenaf can be planted through the year and grow at any elevations, the harvesting time is about 120 days. On dry weight basis the bast fiber content on the stem ranges from 21% to 36%. Dimension of kenaf bast fiber is 2 to 3 mm in length and 15 to 25 ⁇ m in width. The chemical content of kenaf bast fiber is: cellulose (44-62%), hemicellulose (14-20%), lignin (6-9%) and pectin (4-5%) .
- kenaf bast fiber While the density of kenaf bast fiber is 1.47 g/cm 3 , tensile strength is 479-1600 MPa, and Young's modulus is 18.2 GPa. As raw material for industry, kenaf has good potential because the yield is about 1.5 to 5 ton dry fiber per ha. Kenaf grows as fast as 7-8 cm per day that means it has a fast photosynthetic rate so can absorb a large carbon dioxide; therefore it can be planted for reducing global warming.
- Fiber size is very important factor in producing composites for automotive components. In order to increase the strength of composites, smaller fiber size such as micro fibril cellulose (MFC) is required.
- MFC micro fibril cellulose
- United States Patent 20060147695 describes a kenaf fiber reinforced composites containing kenaf fiber of 100 ⁇ m to 20 mm and polymer matrix of polylactic acid for products of electrical and electronic equipment.
- United States Patent 5973035 describes an invention that features a composite including a resin, such as a thermoplastic resin, and at least about 2% by weight, more preferably at least about 5% by weight, texturized cellulosic or lignocellulosic fiber.
- the invention also features a composite that includes polyethylene and at least about 50% by weight texturized cellulosic or lignocellulosic fiber.
- the composites have flexural strengths of at least about 3, 000 psi, or tensile strengths of at least about 3,000 psi.
- the process to produce the composite includes shearing cellulosic or lignocellulosic fiber to form texturized cellulosic or lignocellulosic fiber, then combining the texturized fiber with a resin.
- a preferred method includes shearing the fiber with a rotary knife cutter. Shearing caused the internal fibers are substantially exposed.
- the "texturized cellulosic or lignocellulosic fiber" at least about 50%, more preferably at least about 70%, of these fibers have a length/diameter (L/D) ratio of at least 5, more preferably at least 25, or at least 50.
- United States Patent 4559376 describes a method to produce composites based on cellulose or lignocellulosic materials and plastics according to which method the cellulose or lignocellulose material is subjected to a pre- hydrolytic or other chemically degrading treatment prior to or during the compounding or processing step whereby a comminution and improved dispersion of the cellulose or lignocellulose material in the plastic phase is achieved.
- the thermoplastic composite contains up to 40% by weight of the pre-hydrolytic cellulose or lignocellulose incorporated therein.
- a masterbatch concentrate is produced which contains up to 70% by weight of the pre-hydrolytic cellulose or lignocellulose incorporated therein.
- United States Patent 6939903 describes a process for preparing a composite material which comprises: a) sizing a natural fiber with a reactive organosilane; b) mixing the sized natural fiber with a polyolefin resin; and c) adding a functionalized polyolefin coupling agent to the mixture of the sized natural fiber and the polyolefin resin to provide said composite material.
- the objective of this invention is to obtain a composite for automotive components that has high strength and environmentally friendly composed of kenaf micro fiber and polypropylene or polylactic acid matrices. The objective can be achieved through products and methods describes in the claims.
- the invention relates to a composite product for automotive components that contains a mixture of kenaf micro fiber and polymer of polypropylene (PP) and/or polylactic acid (PLA) .
- PP polypropylene
- PLA polylactic acid
- Kenaf fiber was firstly processed into pulp, and then fibrillated using stone grinder.
- Kenaf fiber has the diameter size of 10 to 50 ⁇ m and mixed with polymer, preferably.
- Composite of kenaf micro fiber and polypropylene (PP) was made by mixing dry pulp with granular polypropylene (PP) in a mixer (Labo plastomill) at, for example, 170 to 190 0 C, 50 to 70 rpm for 10 to 30 minutes.
- the amount of kenaf micro fiber was 40 to 80% of by weight (composite weight) .
- MAPP metal-organic styrene resin
- the mixture of materials was removed from the Labo plastomill and put into plates with teflon sheets put on the plates to make a mat form and then hot pressed. Hot pressing was conducted at temperature of, for example, 170 to 190 0 C, pressure of, for example, 1 MPa for 30 to 60 seconds. After hot pressed, the plate was immediately put in a cold press at pressure of, for example, 1 MPa for 3 to 7 minutes. Then the board was taken from the plates.
- Composite board of kenaf micro fiber and polylactic acid (PLA) was done as follow. Firstly PLA was dissolved in dichloromethane and stirred at room temperature. Wet pulp was put into the dissolved PLA and stirred until homogenous. During the mixing, triacetin as plasticizer was preferably added as plasticizer at the amount of, for example, 3 to 9% of the weight of composite. The amount of kenaf micro fiber was 30 to 60% of composite weight, preferably . The mixture was dried in an oven at, for example, 60 to 105 0 C for 12 to 36 hours. Dried mixture was processed further in a mixer (Labo plastomill) at temperature of, for example, 160 to 180 0 C, 50 to 70 rpm for 10 to 30 minutes.
- a mixer Labo plastomill
- the mixture was removed and put into plates with teflon sheets put on the plates to make a mat form and then hot pressed.
- Hot pressing was conducted at temperature of, for example, 170 to 190 0 C, pressure of 1 MPa for 30 to 60 seconds. After hot pressed, the plate was immediately put in a cold press at pressure of, for example, 1 MPa for 3 to 7 minutes. Then the board was taken from the plates.
- Figure 1 describes flow chart of preparation process of composite of kenaf micro fiber with polypropylene (PP) according to this invention.
- Figure 2 describes flow chart of preparation process of composite of kenaf micro fiber with polylactic acid (PLA) according to this invention.
- Kenaf fiber was processed firstly into pulp, and then fibrillated using stone grinder to have the size of 10 to 50 ⁇ m, preferably, and mixed with polymer.
- composite of kenaf micro fiber and polypropylene (PP) was made by mixing dry pulp with granular polypropylene (PP) in a mixer (Labo plastomill) at 170 to 190 0 C, 50 to 70 rpm for 10 to 30 minutes.
- the amount of kenaf micro fiber was 40, 50, 60, 70, and 80% of composite weight.
- MAPP maleic anhydride polypropylene
- Hot pressing was conducted at temperature of 170 to 190 0 C, pressure of 1 MPa for 30 to 60 seconds. After hot pressed, the plate was immediately put in a cold press at pressure of 1 MPa for 3 to 7 minutes. Then the board was taken from the plates.
- composite board of kenaf micro fiber and polylactic acid (PLA) was done as follow. Firstly PLA was dissolved in dichloromethane and stirred at room temperature. Wet pulp and triacetin as plasticizer were put into the dissolved PLA and stirred until homogenous. The amount of kenaf micro fiber was 30, 40, 50, and 60% of composite weight. The amount of triacetin added was 3, 5, 7, and 9% of the weight of composite.
- the mixture was dried in an oven at 60 to 105 0 C for 12 to 36 hours. Dried mixture was processed further in a mixer (Labo plastomill) at temperature of 160 to 180 0 C, 50 to 70 rpm for 10 to 30 minutes. The mixture was removed and put into plates with teflon sheets put on the plates to make a mat form and then hot pressed. Hot pressing was conducted at temperature of 170 to 190 0 C, pressure of 1 MPa for 30 to 60 seconds. After hot pressed, the plate was immediately put in a cold press at pressure of 1 MPa for 3 to 7 minutes. Then the board was taken from the plates.
- a mixer Labo plastomill
- the obtained board was shaped into test piece having 50x150 mm.
- the both ends of the test piece were freely supported so as to have 100 mm span length. Applying a load of 50 mm/min to the center of the span length, and an amount of deflection was measured. Then, load-deflection curve for each test piece can be obtained.
- the value of the load in wihch the test piece was broken is defined as the maximum bending load (at 50mm width) .
- the Bending elasticity gradient was defined as the bending load at 1 cm deflection caluculated from the amount of strain in linear region of the load-deflection curve at beginnig of loading and bending load. Test results were shown in tables 1 to 4.
- the preferred composition of kenaf micro fiber and PP was that having ratio of 50 : 50 with addition of 5% MAPP. While the preferred composition kenaf micro fiber and PLA was that having ratio of 50 with addition of 7% triacetin.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011509169A JP2011523430A (en) | 2008-05-16 | 2009-05-18 | Composite containing kenaf microfiber blended with polypropylene or polylactic acid |
CN2009801273855A CN102099404A (en) | 2008-05-16 | 2009-05-18 | Composites of kenaf micro fiber with polypropylene or polylactic acid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IDP00200800265 | 2008-05-16 | ||
ID20080265 | 2008-05-16 |
Publications (1)
Publication Number | Publication Date |
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WO2009139508A1 true WO2009139508A1 (en) | 2009-11-19 |
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ID=40847009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/059479 WO2009139508A1 (en) | 2008-05-16 | 2009-05-18 | Composites of kenaf micro fiber with polypropylene or polylactic acid |
Country Status (3)
Country | Link |
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JP (1) | JP2011523430A (en) |
CN (1) | CN102099404A (en) |
WO (1) | WO2009139508A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2014063664A1 (en) * | 2012-10-25 | 2014-05-01 | Techniká Univerzita V Liberci - Katedra Strojírenské Technologie, Odděleni Tvářeni Kovů A Zpracování Plastů | Composite with synthetic polymeric matrix and cellulose in the form of natural fibre fillers |
US8851084B2 (en) | 2011-07-19 | 2014-10-07 | British American Tobacco (Investments) Limited | Cellulose acetate compositions |
US9241512B2 (en) | 2011-06-23 | 2016-01-26 | British American Tobacco (Investments) Limited | Filter material comprising polylactide fibres |
WO2016026920A1 (en) * | 2014-08-21 | 2016-02-25 | Styrolution Group Gmbh | Polylactic acid composites with natural fibers |
US9695305B2 (en) | 2014-03-07 | 2017-07-04 | Hyundai Motor Company | Polyolefin-natural fiber composite composition for extrusion molding |
US10519579B2 (en) | 2013-03-15 | 2019-12-31 | Gpcp Ip Holdings Llc | Nonwoven fabrics of short individualized bast fibers and products made therefrom |
CN112654674A (en) * | 2018-10-03 | 2021-04-13 | 古河电气工业株式会社 | Resin molded body and resin composition |
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US9241512B2 (en) | 2011-06-23 | 2016-01-26 | British American Tobacco (Investments) Limited | Filter material comprising polylactide fibres |
US8851084B2 (en) | 2011-07-19 | 2014-10-07 | British American Tobacco (Investments) Limited | Cellulose acetate compositions |
WO2014063664A1 (en) * | 2012-10-25 | 2014-05-01 | Techniká Univerzita V Liberci - Katedra Strojírenské Technologie, Odděleni Tvářeni Kovů A Zpracování Plastů | Composite with synthetic polymeric matrix and cellulose in the form of natural fibre fillers |
CZ306879B6 (en) * | 2012-10-25 | 2017-08-23 | Technická Univerzita V Liberci, Katedra Strojírenské Technologie, Oddělení Tváření Kovů A Zpracování Plastů | A biocomposite with a PLA matrix and banana fibres |
US10519579B2 (en) | 2013-03-15 | 2019-12-31 | Gpcp Ip Holdings Llc | Nonwoven fabrics of short individualized bast fibers and products made therefrom |
US9695305B2 (en) | 2014-03-07 | 2017-07-04 | Hyundai Motor Company | Polyolefin-natural fiber composite composition for extrusion molding |
WO2016026920A1 (en) * | 2014-08-21 | 2016-02-25 | Styrolution Group Gmbh | Polylactic acid composites with natural fibers |
CN112654674A (en) * | 2018-10-03 | 2021-04-13 | 古河电气工业株式会社 | Resin molded body and resin composition |
CN112654674B (en) * | 2018-10-03 | 2023-11-14 | 古河电气工业株式会社 | Resin molded body and resin composition |
US11905399B2 (en) | 2018-10-03 | 2024-02-20 | Furukawa Electric Co., Ltd. | Resin formed body and resin composition |
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Publication number | Publication date |
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JP2011523430A (en) | 2011-08-11 |
CN102099404A (en) | 2011-06-15 |
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