Green Composites of Poly(Lactic Acid)/Epoxidized Natural Rubber Filled with Coir Fibers
The aim of this study is to prepare green composites from poly (lactic acid) (PLA) and in-house epoxidized natural rubber (ENR) with coir fibers (CFs). In-house ENR with medium epoxidation degree (about 35 mole% epoxidation) was first prepared via ‘in situ’ epoxidation of natural rubber latex. PLA w...
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| Veröffentlicht in: | Key engineering materials 2020-05, Vol.845, p.39-44 |
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| creator | Kiwjaroun, Woraporn Chuayjuljit, Saowaroj Chaiwutthinan, Phasawat Boonmahitthisud, Anyaporn |
| description | The aim of this study is to prepare green composites from poly (lactic acid) (PLA) and in-house epoxidized natural rubber (ENR) with coir fibers (CFs). In-house ENR with medium epoxidation degree (about 35 mole% epoxidation) was first prepared via ‘in situ’ epoxidation of natural rubber latex. PLA was melt-mixed with three loadings (10, 20 and 30 wt%) of ENR on a twin-screw extruder, followed by injection molding to observe their mechanical properties (impact strength, tensile strength, Young’s modulus and elongation at break) and thermal stability. The results showed that the addition of the ENR enhanced the impact strength and elongation at break, but deteriorated tensile strength, Young’s modulus and thermal stability of the blends. From mechanical properties consideration, the 90/10 PLA/ENR blend was selected for preparing green composites with different amounts of CFs (5, 10 and 20 phr). It was found that the incorporation of CFs improved tensile strength and Young’s modulus. However, the impact strength, elongation at break and thermal stability of the green composites decreased as compared to those of the neat 90/10 PLA/ENR blend. |
| doi_str_mv | 10.4028/www.scientific.net/KEM.845.39 |
| format | Article |
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In-house ENR with medium epoxidation degree (about 35 mole% epoxidation) was first prepared via ‘in situ’ epoxidation of natural rubber latex. PLA was melt-mixed with three loadings (10, 20 and 30 wt%) of ENR on a twin-screw extruder, followed by injection molding to observe their mechanical properties (impact strength, tensile strength, Young’s modulus and elongation at break) and thermal stability. The results showed that the addition of the ENR enhanced the impact strength and elongation at break, but deteriorated tensile strength, Young’s modulus and thermal stability of the blends. From mechanical properties consideration, the 90/10 PLA/ENR blend was selected for preparing green composites with different amounts of CFs (5, 10 and 20 phr). It was found that the incorporation of CFs improved tensile strength and Young’s modulus. However, the impact strength, elongation at break and thermal stability of the green composites decreased as compared to those of the neat 90/10 PLA/ENR blend.</description><identifier>ISSN: 1013-9826</identifier><identifier>ISSN: 1662-9795</identifier><identifier>EISSN: 1662-9795</identifier><identifier>DOI: 10.4028/www.scientific.net/KEM.845.39</identifier><language>eng</language><publisher>Zurich: Trans Tech Publications Ltd</publisher><subject>Biodegradable materials ; Coir ; Elongation ; Epoxidation ; Impact strength ; Injection molding ; Latex ; Mechanical properties ; Modulus of elasticity ; Natural rubber ; Polylactic acid ; Polymer matrix composites ; Tensile strength ; Thermal stability ; Twin screw extruders</subject><ispartof>Key engineering materials, 2020-05, Vol.845, p.39-44</ispartof><rights>2020 Trans Tech Publications Ltd</rights><rights>Copyright Trans Tech Publications Ltd. May 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c2089-868ca2851cd3157194290c0cc0fe73c842bbf71e2771811b4470b886ca0571fb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/5964?width=600</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Kiwjaroun, Woraporn</creatorcontrib><creatorcontrib>Chuayjuljit, Saowaroj</creatorcontrib><creatorcontrib>Chaiwutthinan, Phasawat</creatorcontrib><creatorcontrib>Boonmahitthisud, Anyaporn</creatorcontrib><title>Green Composites of Poly(Lactic Acid)/Epoxidized Natural Rubber Filled with Coir Fibers</title><title>Key engineering materials</title><description>The aim of this study is to prepare green composites from poly (lactic acid) (PLA) and in-house epoxidized natural rubber (ENR) with coir fibers (CFs). 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However, the impact strength, elongation at break and thermal stability of the green composites decreased as compared to those of the neat 90/10 PLA/ENR blend.</description><subject>Biodegradable materials</subject><subject>Coir</subject><subject>Elongation</subject><subject>Epoxidation</subject><subject>Impact strength</subject><subject>Injection molding</subject><subject>Latex</subject><subject>Mechanical properties</subject><subject>Modulus of elasticity</subject><subject>Natural rubber</subject><subject>Polylactic acid</subject><subject>Polymer matrix composites</subject><subject>Tensile strength</subject><subject>Thermal stability</subject><subject>Twin screw extruders</subject><issn>1013-9826</issn><issn>1662-9795</issn><issn>1662-9795</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNkN1LwzAUxYMoOKf_Q0EEfWiXpB9JHkTG2KY4PxDFx5CmKcvompmk1PnXmzFhrz7dy-Gccy8_AK4QTDKI6ajv-8RJrVqvay2TVvnR4_QpoVmepOwIDFBR4JgRlh-HHaI0ZhQXp-DMuRWEKaIoH4DPuVWqjSZmvTFOe-UiU0evptleL4T0WkZjqaub0XRjvnWlf1QVPQvfWdFEb11ZKhvNdNMEtdd-GVr0TgiyOwcntWicuvibQ_Axm75P7uPFy_xhMl7EEkPKYlpQKTDNkaxSlBPEMsyghFLCWpFU0gyXZU2QwoSEf1GZZQSWlBZSwOCuy3QILve9G2u-OuU8X5nOtuEkxxkkRZ7DAgbX7d4lrXHOqppvrF4Lu-UI8h1LHljyA0seWPLAkgeWPGUhf7fPeyta55VcHs78r-EXUAiEHg</recordid><startdate>20200501</startdate><enddate>20200501</enddate><creator>Kiwjaroun, Woraporn</creator><creator>Chuayjuljit, Saowaroj</creator><creator>Chaiwutthinan, Phasawat</creator><creator>Boonmahitthisud, Anyaporn</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20200501</creationdate><title>Green Composites of Poly(Lactic Acid)/Epoxidized Natural Rubber Filled with Coir Fibers</title><author>Kiwjaroun, Woraporn ; Chuayjuljit, Saowaroj ; Chaiwutthinan, Phasawat ; Boonmahitthisud, Anyaporn</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2089-868ca2851cd3157194290c0cc0fe73c842bbf71e2771811b4470b886ca0571fb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Biodegradable materials</topic><topic>Coir</topic><topic>Elongation</topic><topic>Epoxidation</topic><topic>Impact strength</topic><topic>Injection molding</topic><topic>Latex</topic><topic>Mechanical properties</topic><topic>Modulus of elasticity</topic><topic>Natural rubber</topic><topic>Polylactic acid</topic><topic>Polymer matrix composites</topic><topic>Tensile strength</topic><topic>Thermal stability</topic><topic>Twin screw extruders</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kiwjaroun, Woraporn</creatorcontrib><creatorcontrib>Chuayjuljit, Saowaroj</creatorcontrib><creatorcontrib>Chaiwutthinan, Phasawat</creatorcontrib><creatorcontrib>Boonmahitthisud, Anyaporn</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>Key engineering materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kiwjaroun, Woraporn</au><au>Chuayjuljit, Saowaroj</au><au>Chaiwutthinan, Phasawat</au><au>Boonmahitthisud, Anyaporn</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Green Composites of Poly(Lactic Acid)/Epoxidized Natural Rubber Filled with Coir Fibers</atitle><jtitle>Key engineering materials</jtitle><date>2020-05-01</date><risdate>2020</risdate><volume>845</volume><spage>39</spage><epage>44</epage><pages>39-44</pages><issn>1013-9826</issn><issn>1662-9795</issn><eissn>1662-9795</eissn><abstract>The aim of this study is to prepare green composites from poly (lactic acid) (PLA) and in-house epoxidized natural rubber (ENR) with coir fibers (CFs). In-house ENR with medium epoxidation degree (about 35 mole% epoxidation) was first prepared via ‘in situ’ epoxidation of natural rubber latex. PLA was melt-mixed with three loadings (10, 20 and 30 wt%) of ENR on a twin-screw extruder, followed by injection molding to observe their mechanical properties (impact strength, tensile strength, Young’s modulus and elongation at break) and thermal stability. The results showed that the addition of the ENR enhanced the impact strength and elongation at break, but deteriorated tensile strength, Young’s modulus and thermal stability of the blends. From mechanical properties consideration, the 90/10 PLA/ENR blend was selected for preparing green composites with different amounts of CFs (5, 10 and 20 phr). It was found that the incorporation of CFs improved tensile strength and Young’s modulus. However, the impact strength, elongation at break and thermal stability of the green composites decreased as compared to those of the neat 90/10 PLA/ENR blend.</abstract><cop>Zurich</cop><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/KEM.845.39</doi><tpages>6</tpages></addata></record> |
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| subjects | Biodegradable materials Coir Elongation Epoxidation Impact strength Injection molding Latex Mechanical properties Modulus of elasticity Natural rubber Polylactic acid Polymer matrix composites Tensile strength Thermal stability Twin screw extruders |
| title | Green Composites of Poly(Lactic Acid)/Epoxidized Natural Rubber Filled with Coir Fibers |
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