Effects of organoclay on morphology and properties of nanocomposites based on LDPE/PA-6 blends without and with SEBS-g-MA compatibilizer
LDPE/PA‐6 blends (75/25 wt/wt) were added with SEBS‐g‐MA (S) and/or an organoclay (20A) using different compounding sequences and the morphology and the properties of the blends or composites were investigated. An XRD study of the nanocomposites with pure polymers showed that 20A is intercalated by...
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| Veröffentlicht in: | Polymer engineering and science 2009-06, Vol.49 (6), p.1187-1197 |
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| creator | Filippi, Sara Dintcheva, Nadka Tzankova Scaffaro, Roberto La Mantia, Francesco Paolo Polacco, Giovanni Magagnini, Pierluigi |
| description | LDPE/PA‐6 blends (75/25 wt/wt) were added with SEBS‐g‐MA (S) and/or an organoclay (20A) using different compounding sequences and the morphology and the properties of the blends or composites were investigated. An XRD study of the nanocomposites with pure polymers showed that 20A is intercalated by LDPE or PA‐6 chains, whereas it is exfoliated by S if the clay concentration does not exceed 10 wt%. The SEM investigation showed that both S and 20A behave as efficient emulsifying agents for the LDPE/PA‐6 blends. However, their effect on the mechanical properties was found to be opposite: S enhanced toughness but lowered the stiffness, whereas 20A improved the elastic modulus but impaired the impact properties. When used together, these additives failed to have synergistic effects and the blends mechanical properties could not be improved strongly. A possible interpretation for this behavior was suggested, considering that the anhydride groups of S can competitively interact with the amine end groups of PA‐6 and with the surface of the silicate layer of 20A. Nevertheless, an optimization of the compounding procedure and the use of appropriate proportions of S and 20A allow the preparation of composites with excellent morphology and a satisfactory balance of stiffness and toughness. POLYM. ENG. SCI., 2009. © 2009 Society of Plastics Engineers |
| doi_str_mv | 10.1002/pen.21361 |
| format | Article |
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An XRD study of the nanocomposites with pure polymers showed that 20A is intercalated by LDPE or PA‐6 chains, whereas it is exfoliated by S if the clay concentration does not exceed 10 wt%. The SEM investigation showed that both S and 20A behave as efficient emulsifying agents for the LDPE/PA‐6 blends. However, their effect on the mechanical properties was found to be opposite: S enhanced toughness but lowered the stiffness, whereas 20A improved the elastic modulus but impaired the impact properties. When used together, these additives failed to have synergistic effects and the blends mechanical properties could not be improved strongly. A possible interpretation for this behavior was suggested, considering that the anhydride groups of S can competitively interact with the amine end groups of PA‐6 and with the surface of the silicate layer of 20A. Nevertheless, an optimization of the compounding procedure and the use of appropriate proportions of S and 20A allow the preparation of composites with excellent morphology and a satisfactory balance of stiffness and toughness. POLYM. ENG. SCI., 2009. © 2009 Society of Plastics Engineers</description><identifier>ISSN: 0032-3888</identifier><identifier>EISSN: 1548-2634</identifier><identifier>DOI: 10.1002/pen.21361</identifier><identifier>CODEN: PYESAZ</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Applied sciences ; Chemical properties ; Clay ; Composites ; Exact sciences and technology ; Forms of application and semi-finished materials ; Low density polyethylenes ; Methods ; Morphology ; Nanocomposites ; Nanotechnology ; Physical properties ; Polyethylene ; Polymer blends ; Polymer industry, paints, wood ; Polymerization ; Polymers ; Structure ; Technology of polymers</subject><ispartof>Polymer engineering and science, 2009-06, Vol.49 (6), p.1187-1197</ispartof><rights>Copyright © 2009 Society of Plastics Engineers</rights><rights>2009 INIST-CNRS</rights><rights>COPYRIGHT 2009 Society of Plastics Engineers, Inc.</rights><rights>Copyright Society of Plastics Engineers Jun 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5801-e1ab9c7eb21c548663053edde3dc4683c29fa0530a727399254187d8a27a29483</citedby><cites>FETCH-LOGICAL-c5801-e1ab9c7eb21c548663053edde3dc4683c29fa0530a727399254187d8a27a29483</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpen.21361$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpen.21361$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27903,27904,45553,45554</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21487995$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Filippi, Sara</creatorcontrib><creatorcontrib>Dintcheva, Nadka Tzankova</creatorcontrib><creatorcontrib>Scaffaro, Roberto</creatorcontrib><creatorcontrib>La Mantia, Francesco Paolo</creatorcontrib><creatorcontrib>Polacco, Giovanni</creatorcontrib><creatorcontrib>Magagnini, Pierluigi</creatorcontrib><title>Effects of organoclay on morphology and properties of nanocomposites based on LDPE/PA-6 blends without and with SEBS-g-MA compatibilizer</title><title>Polymer engineering and science</title><addtitle>Polym Eng Sci</addtitle><description>LDPE/PA‐6 blends (75/25 wt/wt) were added with SEBS‐g‐MA (S) and/or an organoclay (20A) using different compounding sequences and the morphology and the properties of the blends or composites were investigated. An XRD study of the nanocomposites with pure polymers showed that 20A is intercalated by LDPE or PA‐6 chains, whereas it is exfoliated by S if the clay concentration does not exceed 10 wt%. The SEM investigation showed that both S and 20A behave as efficient emulsifying agents for the LDPE/PA‐6 blends. However, their effect on the mechanical properties was found to be opposite: S enhanced toughness but lowered the stiffness, whereas 20A improved the elastic modulus but impaired the impact properties. When used together, these additives failed to have synergistic effects and the blends mechanical properties could not be improved strongly. A possible interpretation for this behavior was suggested, considering that the anhydride groups of S can competitively interact with the amine end groups of PA‐6 and with the surface of the silicate layer of 20A. 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SCI., 2009. © 2009 Society of Plastics Engineers</description><subject>Applied sciences</subject><subject>Chemical properties</subject><subject>Clay</subject><subject>Composites</subject><subject>Exact sciences and technology</subject><subject>Forms of application and semi-finished materials</subject><subject>Low density polyethylenes</subject><subject>Methods</subject><subject>Morphology</subject><subject>Nanocomposites</subject><subject>Nanotechnology</subject><subject>Physical properties</subject><subject>Polyethylene</subject><subject>Polymer blends</subject><subject>Polymer industry, paints, wood</subject><subject>Polymerization</subject><subject>Polymers</subject><subject>Structure</subject><subject>Technology of polymers</subject><issn>0032-3888</issn><issn>1548-2634</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>N95</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kmtrFDEUhgdRcK1-8B8MgoLg7OY2t4_bdq2t27q4Sj-GTObMbOpsMiYZ6voL_NlmLxYrlUASDs_7ct7DiaKXGI0xQmTSgx4TTDP8KBrhlBUJySh7HI0QoiShRVE8jZ45d4MCS9NyFP2aNQ1I72LTxMa2QhvZiU1sdLw2tl-ZzrSbWOg67q3pwXoFO1RvQbPujVM-VCrhoN6K5qeL2WQxTbK46kDXLr5VfmUGv7PY_uPl7HiZtMnlNN7qhVeV6tRPsM-jJ43oHLw4vEfR1_ezLycfkvmns_OT6TyRaYFwAlhUpcyhIliGeFlGUUqhroHWkmUFlaRsRCghkZOcliVJGS7yuhAkF6RkBT2K3ux9Q6DvAzjP18pJ6DqhwQyOU5YiQlgewFf_gDdmsDr0xgkuMlyWFAUo2UOt6IAr3RhvhWxBgxWd0dCoUJ4ShDPC0pwFfvwAH04NayUfFLy9JwiMhx--FYNz_Hz5-T777i-2GpzS4MLlVLvybi95yFpa45yFhvdWrYXdcIz4dpl4WCa-W6bAvj4MQzgpusYKLZW7ExDMirws08BN9txtyLH5vyFfzK7-OB8mqFwIdqcQ9hvPcpqn_PrqjONTdnFxef2RE_obFUvkTw</recordid><startdate>200906</startdate><enddate>200906</enddate><creator>Filippi, Sara</creator><creator>Dintcheva, Nadka Tzankova</creator><creator>Scaffaro, Roberto</creator><creator>La Mantia, Francesco Paolo</creator><creator>Polacco, Giovanni</creator><creator>Magagnini, Pierluigi</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><general>Society of Plastics Engineers, Inc</general><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>N95</scope><scope>XI7</scope><scope>ISR</scope><scope>3V.</scope><scope>7SR</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L6V</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P5Z</scope><scope>P62</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0X</scope></search><sort><creationdate>200906</creationdate><title>Effects of organoclay on morphology and properties of nanocomposites based on LDPE/PA-6 blends without and with SEBS-g-MA compatibilizer</title><author>Filippi, Sara ; 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An XRD study of the nanocomposites with pure polymers showed that 20A is intercalated by LDPE or PA‐6 chains, whereas it is exfoliated by S if the clay concentration does not exceed 10 wt%. The SEM investigation showed that both S and 20A behave as efficient emulsifying agents for the LDPE/PA‐6 blends. However, their effect on the mechanical properties was found to be opposite: S enhanced toughness but lowered the stiffness, whereas 20A improved the elastic modulus but impaired the impact properties. When used together, these additives failed to have synergistic effects and the blends mechanical properties could not be improved strongly. A possible interpretation for this behavior was suggested, considering that the anhydride groups of S can competitively interact with the amine end groups of PA‐6 and with the surface of the silicate layer of 20A. Nevertheless, an optimization of the compounding procedure and the use of appropriate proportions of S and 20A allow the preparation of composites with excellent morphology and a satisfactory balance of stiffness and toughness. POLYM. ENG. SCI., 2009. © 2009 Society of Plastics Engineers</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/pen.21361</doi><tpages>11</tpages></addata></record> |
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| ispartof | Polymer engineering and science, 2009-06, Vol.49 (6), p.1187-1197 |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Applied sciences Chemical properties Clay Composites Exact sciences and technology Forms of application and semi-finished materials Low density polyethylenes Methods Morphology Nanocomposites Nanotechnology Physical properties Polyethylene Polymer blends Polymer industry, paints, wood Polymerization Polymers Structure Technology of polymers |
| title | Effects of organoclay on morphology and properties of nanocomposites based on LDPE/PA-6 blends without and with SEBS-g-MA compatibilizer |
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