Effect of nanoplatelet dispersion on mechanical behavior of polymer nanocomposites
By manipulating processing conditions, three levels of exfoliation of synthetic α‐zirconium phosphate (α‐ZrP) nanoplatelets in epoxy matrices have been achieved. Transmission electron microscopy and wide angle X‐ray diffraction were utilized to confirm the three different levels of exfoliation of na...
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Veröffentlicht in: | Journal of polymer science. Part B, Polymer physics Polymer physics, 2007-06, Vol.45 (12), p.1459-1469 |
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container_title | Journal of polymer science. Part B, Polymer physics |
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creator | Boo, Woong J. Sun, Luyi Liu, Jia Moghbelli, Ehsan Clearfield, Abraham Sue, Hung-Jue Pham, H. Verghese, N. |
description | By manipulating processing conditions, three levels of exfoliation of synthetic α‐zirconium phosphate (α‐ZrP) nanoplatelets in epoxy matrices have been achieved. Transmission electron microscopy and wide angle X‐ray diffraction were utilized to confirm the three different levels of exfoliation of nanoplatelets in epoxy/α‐ZrP nanocomposites. As expected, it was found that modulus and strength of the nanocomposite are affected by how well the nanoplatelets disperse. It was also found that the operative fracture mechanisms depend strongly on the state of the nanoplatelets dispersion. The crack deflection mechanism, which leads to a tortuous path crack growth, was only observed for poorly dispersed nanocomposites. Delamination of intercalated nanoplatelets and crack deflection were observed in a moderately dispersed system. In the case of fully exfoliated system, the crack only propagated in a straight fashion, which indicates that the fully exfoliated individual nanoplatelet can not affect the propagation of crack at all. The implication of the present findings for structural applications of polymer nanocomposites is discussed. © 2007 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 1459–1469, 2007 |
doi_str_mv | 10.1002/polb.21163 |
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Transmission electron microscopy and wide angle X‐ray diffraction were utilized to confirm the three different levels of exfoliation of nanoplatelets in epoxy/α‐ZrP nanocomposites. As expected, it was found that modulus and strength of the nanocomposite are affected by how well the nanoplatelets disperse. It was also found that the operative fracture mechanisms depend strongly on the state of the nanoplatelets dispersion. The crack deflection mechanism, which leads to a tortuous path crack growth, was only observed for poorly dispersed nanocomposites. Delamination of intercalated nanoplatelets and crack deflection were observed in a moderately dispersed system. In the case of fully exfoliated system, the crack only propagated in a straight fashion, which indicates that the fully exfoliated individual nanoplatelet can not affect the propagation of crack at all. The implication of the present findings for structural applications of polymer nanocomposites is discussed. © 2007 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 1459–1469, 2007</description><identifier>ISSN: 0887-6266</identifier><identifier>EISSN: 1099-0488</identifier><identifier>DOI: 10.1002/polb.21163</identifier><identifier>CODEN: JPLPAY</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Applied sciences ; Composites ; degree of exfoliation ; epoxy nanocomposite ; Exact sciences and technology ; Forms of application and semi-finished materials ; fracture toughness ; mechanical properties ; Polymer industry, paints, wood ; Technology of polymers ; α-zirconium phosphate</subject><ispartof>Journal of polymer science. 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Part B, Polymer physics</title><addtitle>J. Polym. Sci. B Polym. Phys</addtitle><description>By manipulating processing conditions, three levels of exfoliation of synthetic α‐zirconium phosphate (α‐ZrP) nanoplatelets in epoxy matrices have been achieved. Transmission electron microscopy and wide angle X‐ray diffraction were utilized to confirm the three different levels of exfoliation of nanoplatelets in epoxy/α‐ZrP nanocomposites. As expected, it was found that modulus and strength of the nanocomposite are affected by how well the nanoplatelets disperse. It was also found that the operative fracture mechanisms depend strongly on the state of the nanoplatelets dispersion. The crack deflection mechanism, which leads to a tortuous path crack growth, was only observed for poorly dispersed nanocomposites. Delamination of intercalated nanoplatelets and crack deflection were observed in a moderately dispersed system. In the case of fully exfoliated system, the crack only propagated in a straight fashion, which indicates that the fully exfoliated individual nanoplatelet can not affect the propagation of crack at all. The implication of the present findings for structural applications of polymer nanocomposites is discussed. © 2007 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 1459–1469, 2007</description><subject>Applied sciences</subject><subject>Composites</subject><subject>degree of exfoliation</subject><subject>epoxy nanocomposite</subject><subject>Exact sciences and technology</subject><subject>Forms of application and semi-finished materials</subject><subject>fracture toughness</subject><subject>mechanical properties</subject><subject>Polymer industry, paints, wood</subject><subject>Technology of polymers</subject><subject>α-zirconium phosphate</subject><issn>0887-6266</issn><issn>1099-0488</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNp9kMtOAyEUhonRxHrZ-ASz0YXJ6AE6DLNUU62mUWMaXZJThIjODCOMl769tPWyMyE5C77vP_ATskfhiAKw487XsyNGqeBrZEChqnIYSrlOBiBlmQsmxCbZivEZIN0V1YDcjaw1us-8zVpsfVdjb2rTZ48udiZE59ssncboJ2ydxjqbmSd8dz4sjLRt3piwNLVvOh9db-IO2bBYR7P7PbfJ9Hw0PRvnk5uLy7OTSa6HUPGclgUTjEsBpS4ZLQCpEYiUDsECg0fQtpixQnDkFulMMhSALL2W2kJTzbfJwSq2C_71zcReNS5qU9fYGv8WFatkymI0gYcrUAcfYzBWdcE1GOaKglq0phatqWVrCd7_TsWYvmsDttrFP0NKxioOiaMr7sPVZv5Porq9mZz-ZOcrx8XefP46GF6UKHlZqIfriySV1RW7H6sx_wKAm4vd</recordid><startdate>20070615</startdate><enddate>20070615</enddate><creator>Boo, Woong J.</creator><creator>Sun, Luyi</creator><creator>Liu, Jia</creator><creator>Moghbelli, Ehsan</creator><creator>Clearfield, Abraham</creator><creator>Sue, Hung-Jue</creator><creator>Pham, H.</creator><creator>Verghese, N.</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20070615</creationdate><title>Effect of nanoplatelet dispersion on mechanical behavior of polymer nanocomposites</title><author>Boo, Woong J. ; Sun, Luyi ; Liu, Jia ; Moghbelli, Ehsan ; Clearfield, Abraham ; Sue, Hung-Jue ; Pham, H. ; Verghese, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4093-17526238607c72150a1e6aa1140f020d0cf5b2563a3fa1b82a60a2ffe1f5c1c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Composites</topic><topic>degree of exfoliation</topic><topic>epoxy nanocomposite</topic><topic>Exact sciences and technology</topic><topic>Forms of application and semi-finished materials</topic><topic>fracture toughness</topic><topic>mechanical properties</topic><topic>Polymer industry, paints, wood</topic><topic>Technology of polymers</topic><topic>α-zirconium phosphate</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Boo, Woong J.</creatorcontrib><creatorcontrib>Sun, Luyi</creatorcontrib><creatorcontrib>Liu, Jia</creatorcontrib><creatorcontrib>Moghbelli, Ehsan</creatorcontrib><creatorcontrib>Clearfield, Abraham</creatorcontrib><creatorcontrib>Sue, Hung-Jue</creatorcontrib><creatorcontrib>Pham, H.</creatorcontrib><creatorcontrib>Verghese, N.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of polymer science. Part B, Polymer physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Boo, Woong J.</au><au>Sun, Luyi</au><au>Liu, Jia</au><au>Moghbelli, Ehsan</au><au>Clearfield, Abraham</au><au>Sue, Hung-Jue</au><au>Pham, H.</au><au>Verghese, N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of nanoplatelet dispersion on mechanical behavior of polymer nanocomposites</atitle><jtitle>Journal of polymer science. Part B, Polymer physics</jtitle><addtitle>J. Polym. Sci. B Polym. Phys</addtitle><date>2007-06-15</date><risdate>2007</risdate><volume>45</volume><issue>12</issue><spage>1459</spage><epage>1469</epage><pages>1459-1469</pages><issn>0887-6266</issn><eissn>1099-0488</eissn><coden>JPLPAY</coden><abstract>By manipulating processing conditions, three levels of exfoliation of synthetic α‐zirconium phosphate (α‐ZrP) nanoplatelets in epoxy matrices have been achieved. Transmission electron microscopy and wide angle X‐ray diffraction were utilized to confirm the three different levels of exfoliation of nanoplatelets in epoxy/α‐ZrP nanocomposites. As expected, it was found that modulus and strength of the nanocomposite are affected by how well the nanoplatelets disperse. It was also found that the operative fracture mechanisms depend strongly on the state of the nanoplatelets dispersion. The crack deflection mechanism, which leads to a tortuous path crack growth, was only observed for poorly dispersed nanocomposites. Delamination of intercalated nanoplatelets and crack deflection were observed in a moderately dispersed system. In the case of fully exfoliated system, the crack only propagated in a straight fashion, which indicates that the fully exfoliated individual nanoplatelet can not affect the propagation of crack at all. The implication of the present findings for structural applications of polymer nanocomposites is discussed. © 2007 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 1459–1469, 2007</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/polb.21163</doi><tpages>11</tpages></addata></record> |
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subjects | Applied sciences Composites degree of exfoliation epoxy nanocomposite Exact sciences and technology Forms of application and semi-finished materials fracture toughness mechanical properties Polymer industry, paints, wood Technology of polymers α-zirconium phosphate |
title | Effect of nanoplatelet dispersion on mechanical behavior of polymer nanocomposites |
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