Temperature and frequency‐dependent creep and recovery studies on PVDF‐HFP/organo‐modified layered double hydroxides nanocomposites
ABSTRACT A series of poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) loaded with various contents of layered double hydroxides (LDHs) nanoparticles were prepared via a melt mixing method. Detailed investigations on LDH dispersion state in the polymeric matrix conducted by TEM revealed in...
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| Veröffentlicht in: | Journal of applied polymer science 2018-06, Vol.135 (23), p.n/a |
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| creator | Shojaei, Leila Goodarzi, Vahabodin Otadi, Maryam Khonakdar, Hossein Ali Jafari, Seyed Hassan Asghari, Gholam hossein Reuter, Uta |
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A series of poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) loaded with various contents of layered double hydroxides (LDHs) nanoparticles were prepared via a melt mixing method. Detailed investigations on LDH dispersion state in the polymeric matrix conducted by TEM revealed intercalated/exfoliated, and agglomerated structures at low (1 wt %) and high (>3 wt %) loadings of LDH contents, respectively. Wide angle X‐ray scattering and DSC results showed that incorporation of LDH into PVDF‐HFP matrix reduced its overall crystallinity and helped to form polar crystallites, while the crystal size at 020 crystallographic directions was found to be most affected by presence and dispersion state of LDH in the matrix. TGA results showed LDH improved thermal stability of matrix however, unlike many other nanomaterials it significantly reduced the residual mass which highlights catalytic role of LDH in degradation of residual carbon char. Detailed analysis on creep and recovery data over wide range of selected temperatures revealed that the creep compliance of nanocomposites are basically controlled by crystallinity and presence of LDH at low and high temperatures, respectively. Based on obtained storage modulus and creep compliance master curves it was also found that the influence of LDH on decreasing the creep compliance and improving viscoelastic properties of PVDF‐HFP over long time period and over high frequency ranges becomes more pronounced. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46352. |
| doi_str_mv | 10.1002/app.46352 |
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A series of poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) loaded with various contents of layered double hydroxides (LDHs) nanoparticles were prepared via a melt mixing method. Detailed investigations on LDH dispersion state in the polymeric matrix conducted by TEM revealed intercalated/exfoliated, and agglomerated structures at low (1 wt %) and high (>3 wt %) loadings of LDH contents, respectively. Wide angle X‐ray scattering and DSC results showed that incorporation of LDH into PVDF‐HFP matrix reduced its overall crystallinity and helped to form polar crystallites, while the crystal size at 020 crystallographic directions was found to be most affected by presence and dispersion state of LDH in the matrix. TGA results showed LDH improved thermal stability of matrix however, unlike many other nanomaterials it significantly reduced the residual mass which highlights catalytic role of LDH in degradation of residual carbon char. Detailed analysis on creep and recovery data over wide range of selected temperatures revealed that the creep compliance of nanocomposites are basically controlled by crystallinity and presence of LDH at low and high temperatures, respectively. Based on obtained storage modulus and creep compliance master curves it was also found that the influence of LDH on decreasing the creep compliance and improving viscoelastic properties of PVDF‐HFP over long time period and over high frequency ranges becomes more pronounced. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46352.</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.46352</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc</publisher><subject>Catalysis ; Compliance ; Creep (materials) ; Crystal structure ; Crystallinity ; Crystallites ; Crystallography ; Data recovery ; Dispersion ; Frequency ranges ; glass transition ; Hydroxides ; Materials science ; mechanical properties ; morphology ; nanocomposite ; Nanocomposites ; Nanomaterials ; Polymers ; Storage modulus ; structure–property relationships ; Temperature dependence ; Thermal stability ; Vinylidene ; Vinylidene fluoride ; Viscoelasticity</subject><ispartof>Journal of applied polymer science, 2018-06, Vol.135 (23), p.n/a</ispartof><rights>2018 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2972-737e40426b392f5bc48c521a1c816924d03c94ccc8c43b7134fbdf47564a05a93</citedby><cites>FETCH-LOGICAL-c2972-737e40426b392f5bc48c521a1c816924d03c94ccc8c43b7134fbdf47564a05a93</cites><orcidid>0000-0002-7295-5434 ; 0000-0001-8143-9338</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fapp.46352$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fapp.46352$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Shojaei, Leila</creatorcontrib><creatorcontrib>Goodarzi, Vahabodin</creatorcontrib><creatorcontrib>Otadi, Maryam</creatorcontrib><creatorcontrib>Khonakdar, Hossein Ali</creatorcontrib><creatorcontrib>Jafari, Seyed Hassan</creatorcontrib><creatorcontrib>Asghari, Gholam hossein</creatorcontrib><creatorcontrib>Reuter, Uta</creatorcontrib><title>Temperature and frequency‐dependent creep and recovery studies on PVDF‐HFP/organo‐modified layered double hydroxides nanocomposites</title><title>Journal of applied polymer science</title><description>ABSTRACT
A series of poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) loaded with various contents of layered double hydroxides (LDHs) nanoparticles were prepared via a melt mixing method. Detailed investigations on LDH dispersion state in the polymeric matrix conducted by TEM revealed intercalated/exfoliated, and agglomerated structures at low (1 wt %) and high (>3 wt %) loadings of LDH contents, respectively. Wide angle X‐ray scattering and DSC results showed that incorporation of LDH into PVDF‐HFP matrix reduced its overall crystallinity and helped to form polar crystallites, while the crystal size at 020 crystallographic directions was found to be most affected by presence and dispersion state of LDH in the matrix. TGA results showed LDH improved thermal stability of matrix however, unlike many other nanomaterials it significantly reduced the residual mass which highlights catalytic role of LDH in degradation of residual carbon char. Detailed analysis on creep and recovery data over wide range of selected temperatures revealed that the creep compliance of nanocomposites are basically controlled by crystallinity and presence of LDH at low and high temperatures, respectively. Based on obtained storage modulus and creep compliance master curves it was also found that the influence of LDH on decreasing the creep compliance and improving viscoelastic properties of PVDF‐HFP over long time period and over high frequency ranges becomes more pronounced. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46352.</description><subject>Catalysis</subject><subject>Compliance</subject><subject>Creep (materials)</subject><subject>Crystal structure</subject><subject>Crystallinity</subject><subject>Crystallites</subject><subject>Crystallography</subject><subject>Data recovery</subject><subject>Dispersion</subject><subject>Frequency ranges</subject><subject>glass transition</subject><subject>Hydroxides</subject><subject>Materials science</subject><subject>mechanical properties</subject><subject>morphology</subject><subject>nanocomposite</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Polymers</subject><subject>Storage modulus</subject><subject>structure–property relationships</subject><subject>Temperature dependence</subject><subject>Thermal stability</subject><subject>Vinylidene</subject><subject>Vinylidene fluoride</subject><subject>Viscoelasticity</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1kL1OwzAUhS0EEqUw8AaRmBjS2o7zN1aFUiQkOhRWy7FvIFViBzsBsrGy8Yw8CaZhZTq6Ot-5V_cgdE7wjGBM56JtZyyJYnqAJgTnacgSmh2iifdImOV5fIxOnNthTEiMkwn63ELTghVdbyEQWgWlhZcetBy-P74UtKAV6C6QFqDd-xakeQU7BK7rVQUuMDrYPF6tPL5ebebGPglt_NAYVZUVqKAWA1ivyvRFDcHzoKx5r5RPak9K07TGVR24U3RUitrB2Z9O0cPqertch3f3N7fLxV0oaZ7SMI1SYJjRpIhyWsaFZJmMKRFEZiTJKVM4kjmTUmaSRUVKIlYWqmRpnDCBY5FHU3Qx7m2t8Z-6ju9Mb7U_ySkmEclwRmNPXY6UtMY5CyVvbdUIO3CC-W_T3DfN9017dj6yb1UNw_8gX2w2Y-IHehOEww</recordid><startdate>20180615</startdate><enddate>20180615</enddate><creator>Shojaei, Leila</creator><creator>Goodarzi, Vahabodin</creator><creator>Otadi, Maryam</creator><creator>Khonakdar, Hossein Ali</creator><creator>Jafari, Seyed Hassan</creator><creator>Asghari, Gholam hossein</creator><creator>Reuter, Uta</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-7295-5434</orcidid><orcidid>https://orcid.org/0000-0001-8143-9338</orcidid></search><sort><creationdate>20180615</creationdate><title>Temperature and frequency‐dependent creep and recovery studies on PVDF‐HFP/organo‐modified layered double hydroxides nanocomposites</title><author>Shojaei, Leila ; Goodarzi, Vahabodin ; Otadi, Maryam ; Khonakdar, Hossein Ali ; Jafari, Seyed Hassan ; Asghari, Gholam hossein ; Reuter, Uta</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2972-737e40426b392f5bc48c521a1c816924d03c94ccc8c43b7134fbdf47564a05a93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Catalysis</topic><topic>Compliance</topic><topic>Creep (materials)</topic><topic>Crystal structure</topic><topic>Crystallinity</topic><topic>Crystallites</topic><topic>Crystallography</topic><topic>Data recovery</topic><topic>Dispersion</topic><topic>Frequency ranges</topic><topic>glass transition</topic><topic>Hydroxides</topic><topic>Materials science</topic><topic>mechanical properties</topic><topic>morphology</topic><topic>nanocomposite</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Polymers</topic><topic>Storage modulus</topic><topic>structure–property relationships</topic><topic>Temperature dependence</topic><topic>Thermal stability</topic><topic>Vinylidene</topic><topic>Vinylidene fluoride</topic><topic>Viscoelasticity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shojaei, Leila</creatorcontrib><creatorcontrib>Goodarzi, Vahabodin</creatorcontrib><creatorcontrib>Otadi, Maryam</creatorcontrib><creatorcontrib>Khonakdar, Hossein Ali</creatorcontrib><creatorcontrib>Jafari, Seyed Hassan</creatorcontrib><creatorcontrib>Asghari, Gholam hossein</creatorcontrib><creatorcontrib>Reuter, Uta</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shojaei, Leila</au><au>Goodarzi, Vahabodin</au><au>Otadi, Maryam</au><au>Khonakdar, Hossein Ali</au><au>Jafari, Seyed Hassan</au><au>Asghari, Gholam hossein</au><au>Reuter, Uta</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature and frequency‐dependent creep and recovery studies on PVDF‐HFP/organo‐modified layered double hydroxides nanocomposites</atitle><jtitle>Journal of applied polymer science</jtitle><date>2018-06-15</date><risdate>2018</risdate><volume>135</volume><issue>23</issue><epage>n/a</epage><issn>0021-8995</issn><eissn>1097-4628</eissn><abstract>ABSTRACT
A series of poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) loaded with various contents of layered double hydroxides (LDHs) nanoparticles were prepared via a melt mixing method. Detailed investigations on LDH dispersion state in the polymeric matrix conducted by TEM revealed intercalated/exfoliated, and agglomerated structures at low (1 wt %) and high (>3 wt %) loadings of LDH contents, respectively. Wide angle X‐ray scattering and DSC results showed that incorporation of LDH into PVDF‐HFP matrix reduced its overall crystallinity and helped to form polar crystallites, while the crystal size at 020 crystallographic directions was found to be most affected by presence and dispersion state of LDH in the matrix. TGA results showed LDH improved thermal stability of matrix however, unlike many other nanomaterials it significantly reduced the residual mass which highlights catalytic role of LDH in degradation of residual carbon char. Detailed analysis on creep and recovery data over wide range of selected temperatures revealed that the creep compliance of nanocomposites are basically controlled by crystallinity and presence of LDH at low and high temperatures, respectively. Based on obtained storage modulus and creep compliance master curves it was also found that the influence of LDH on decreasing the creep compliance and improving viscoelastic properties of PVDF‐HFP over long time period and over high frequency ranges becomes more pronounced. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46352.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/app.46352</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0002-7295-5434</orcidid><orcidid>https://orcid.org/0000-0001-8143-9338</orcidid></addata></record> |
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| subjects | Catalysis Compliance Creep (materials) Crystal structure Crystallinity Crystallites Crystallography Data recovery Dispersion Frequency ranges glass transition Hydroxides Materials science mechanical properties morphology nanocomposite Nanocomposites Nanomaterials Polymers Storage modulus structure–property relationships Temperature dependence Thermal stability Vinylidene Vinylidene fluoride Viscoelasticity |
| title | Temperature and frequency‐dependent creep and recovery studies on PVDF‐HFP/organo‐modified layered double hydroxides nanocomposites |
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