Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides
<p dir="ltr">The cure kinetics analysis of thermoset polymer composites gives useful information about their properties. In this work, two types of layered double hydroxide (LDH) consisting of Mg<sup>2+</sup> and Zn<sup>2+</sup> as divalent metal ions and CO&l...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , , , , , , , , , , |
| منشور في: |
2020
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إضافة وسم
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| _version_ | 1864513512929230848 |
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| author | Zohre Karami (17542302) |
| author2 | Mohammad Reza Ganjali (18768295) Maryam Zarghami Dehaghani (17542239) Mustafa Aghazadeh (5500370) Maryam Jouyandeh (10769105) Amin Esmaeili (17541204) Sajjad Habibzadeh (5548580) Ahmad Mohaddespour (17541948) Inamuddin (10764098) Krzysztof Formela (3237816) Józef T. Haponiuk 8 (18768301) Mohammad Reza (18768302) |
| author2_role | author author author author author author author author author author author |
| author_facet | Zohre Karami (17542302) Mohammad Reza Ganjali (18768295) Maryam Zarghami Dehaghani (17542239) Mustafa Aghazadeh (5500370) Maryam Jouyandeh (10769105) Amin Esmaeili (17541204) Sajjad Habibzadeh (5548580) Ahmad Mohaddespour (17541948) Inamuddin (10764098) Krzysztof Formela (3237816) Józef T. Haponiuk 8 (18768301) Mohammad Reza (18768302) |
| author_role | author |
| dc.creator.none.fl_str_mv | Zohre Karami (17542302) Mohammad Reza Ganjali (18768295) Maryam Zarghami Dehaghani (17542239) Mustafa Aghazadeh (5500370) Maryam Jouyandeh (10769105) Amin Esmaeili (17541204) Sajjad Habibzadeh (5548580) Ahmad Mohaddespour (17541948) Inamuddin (10764098) Krzysztof Formela (3237816) Józef T. Haponiuk 8 (18768301) Mohammad Reza (18768302) |
| dc.date.none.fl_str_mv | 2020-05-18T15:00:00Z |
| dc.identifier.none.fl_str_mv | 10.57945/manara.25974754.v1 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Kinetics_of_Cross-Linking_Reaction_of_Epoxy_Resin_with_Hydroxyapatite-Functionalized_Layered_Double_Hydroxides/25974754 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Materials engineering cure index epoxy layered double hydroxide (LDH) hydroxyapatite curing kinetics isoconversional methods |
| dc.title.none.fl_str_mv | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">The cure kinetics analysis of thermoset polymer composites gives useful information about their properties. In this work, two types of layered double hydroxide (LDH) consisting of Mg<sup>2+</sup> and Zn<sup>2+</sup> as divalent metal ions and CO<sub>3</sub><sup>2−</sup> as an anion intercalating agent were synthesized and functionalized with hydroxyapatite (HA) to make a potential thermal resistant nanocomposite. The curing potential of the synthesized nanoplatelets in the epoxy resin was then studied, both qualitatively and quantitatively, in terms of the <i>Cure Index</i> as well as using isoconversional methods, working on the basis of nonisothermal differential scanning calorimetry (DSC) data. Fourier transform infrared spectroscopy (FTIR) was used along with X-ray diffraction (XRD) and thermogravimetric analysis (TGA) to characterize the obtained LDH structures. The FTIR band at 3542 cm<sup>−1</sup> corresponded to the O–H stretching vibration of the interlayer water molecules, while the weak band observed at 1640 cm<sup>−1</sup> was attributed to the bending vibration of the H–O of the interlayer water. The characteristic band of carbonated hydroxyapatite was observed at 1456 cm<sup>−1</sup>. In the XRD patterns, the well-defined (00l) reflections, i.e., (003), (006), and (110), supported LDH basal reflections. Nanocomposites prepared at 0.1 wt % were examined for curing potential by the <i>Cure Index</i> as a qualitative criterion that elucidated a <i>Poor</i> cure state for epoxy/LDH nanocomposites. Moreover, the curing kinetics parameters including the activation energy (<i>E</i><sub>α</sub>), reaction order, and the frequency factor were computed using the <i>Friedman</i> and Kissinger–Akahira–Sunose (<i>KAS</i>) isoconversional methods. The evolution of <i>E</i><sub>α</sub> confirmed the inhibitory role of the LDH in the crosslinking reactions. The average value of <i>E</i><sub>α</sub> for the neat epoxy was 54.37 kJ/mol based on the <i>KAS</i> method, whereas the average values were 59.94 and 59.05 kJ/mol for the epoxy containing Zn-Al-CO<sub>3</sub>-HA and Mg Zn-Al-CO<sub>3</sub>-HA, respectively. Overall, it was concluded that the developed LDH structures hindered the epoxy curing reactions.</p><h2>Other Information</h2><p dir="ltr">Published in: Polymers<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://doi.org/10.3390/polym12051157" target="_blank">https://doi.org/10.3390/polym12051157</a></p><p dir="ltr"><br></p><p dir="ltr">The University of Doha for Science and Technology replaced the now-former College of the North Atlantic-Qatar after an Amiri decision in 2022. UDST has become and first national applied University in Qatar; it is also second national University in the country.</p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_98899efdf2d312c8c176b3c54697f0fc |
| identifier_str_mv | 10.57945/manara.25974754.v1 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/25974754 |
| publishDate | 2020 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double HydroxidesZohre Karami (17542302)Mohammad Reza Ganjali (18768295)Maryam Zarghami Dehaghani (17542239)Mustafa Aghazadeh (5500370)Maryam Jouyandeh (10769105)Amin Esmaeili (17541204)Sajjad Habibzadeh (5548580)Ahmad Mohaddespour (17541948)Inamuddin (10764098)Krzysztof Formela (3237816)Józef T. Haponiuk 8 (18768301)Mohammad Reza (18768302)EngineeringMaterials engineeringcure indexepoxylayered double hydroxide (LDH)hydroxyapatitecuring kineticsisoconversional methods<p dir="ltr">The cure kinetics analysis of thermoset polymer composites gives useful information about their properties. In this work, two types of layered double hydroxide (LDH) consisting of Mg<sup>2+</sup> and Zn<sup>2+</sup> as divalent metal ions and CO<sub>3</sub><sup>2−</sup> as an anion intercalating agent were synthesized and functionalized with hydroxyapatite (HA) to make a potential thermal resistant nanocomposite. The curing potential of the synthesized nanoplatelets in the epoxy resin was then studied, both qualitatively and quantitatively, in terms of the <i>Cure Index</i> as well as using isoconversional methods, working on the basis of nonisothermal differential scanning calorimetry (DSC) data. Fourier transform infrared spectroscopy (FTIR) was used along with X-ray diffraction (XRD) and thermogravimetric analysis (TGA) to characterize the obtained LDH structures. The FTIR band at 3542 cm<sup>−1</sup> corresponded to the O–H stretching vibration of the interlayer water molecules, while the weak band observed at 1640 cm<sup>−1</sup> was attributed to the bending vibration of the H–O of the interlayer water. The characteristic band of carbonated hydroxyapatite was observed at 1456 cm<sup>−1</sup>. In the XRD patterns, the well-defined (00l) reflections, i.e., (003), (006), and (110), supported LDH basal reflections. Nanocomposites prepared at 0.1 wt % were examined for curing potential by the <i>Cure Index</i> as a qualitative criterion that elucidated a <i>Poor</i> cure state for epoxy/LDH nanocomposites. Moreover, the curing kinetics parameters including the activation energy (<i>E</i><sub>α</sub>), reaction order, and the frequency factor were computed using the <i>Friedman</i> and Kissinger–Akahira–Sunose (<i>KAS</i>) isoconversional methods. The evolution of <i>E</i><sub>α</sub> confirmed the inhibitory role of the LDH in the crosslinking reactions. The average value of <i>E</i><sub>α</sub> for the neat epoxy was 54.37 kJ/mol based on the <i>KAS</i> method, whereas the average values were 59.94 and 59.05 kJ/mol for the epoxy containing Zn-Al-CO<sub>3</sub>-HA and Mg Zn-Al-CO<sub>3</sub>-HA, respectively. Overall, it was concluded that the developed LDH structures hindered the epoxy curing reactions.</p><h2>Other Information</h2><p dir="ltr">Published in: Polymers<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://doi.org/10.3390/polym12051157" target="_blank">https://doi.org/10.3390/polym12051157</a></p><p dir="ltr"><br></p><p dir="ltr">The University of Doha for Science and Technology replaced the now-former College of the North Atlantic-Qatar after an Amiri decision in 2022. UDST has become and first national applied University in Qatar; it is also second national University in the country.</p>2020-05-18T15:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.57945/manara.25974754.v1https://figshare.com/articles/journal_contribution/Kinetics_of_Cross-Linking_Reaction_of_Epoxy_Resin_with_Hydroxyapatite-Functionalized_Layered_Double_Hydroxides/25974754CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/259747542020-05-18T15:00:00Z |
| spellingShingle | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides Zohre Karami (17542302) Engineering Materials engineering cure index epoxy layered double hydroxide (LDH) hydroxyapatite curing kinetics isoconversional methods |
| status_str | publishedVersion |
| title | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides |
| title_full | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides |
| title_fullStr | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides |
| title_full_unstemmed | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides |
| title_short | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides |
| title_sort | Kinetics of Cross-Linking Reaction of Epoxy Resin with Hydroxyapatite-Functionalized Layered Double Hydroxides |
| topic | Engineering Materials engineering cure index epoxy layered double hydroxide (LDH) hydroxyapatite curing kinetics isoconversional methods |