Cure kinetics and thermal degradation characteristics of epoxy/polyetheramine systems
In this paper, we report detailed cure kinetics of epoxy and polyetheramine (Jeffamine) systems. Three cured epoxy networks were prepared by using three types of Jeffamines having different molecular masses and polyether segment in the chain. The effect of epoxy to Jeffamine stoichiometric and sub-s...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2024-02, Vol.149 (3), p.1073-1087 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | Ratna, Debdatta Jagtap, S. B. Nimje, R. Chakraborty, B. C. |
| description | In this paper, we report detailed cure kinetics of epoxy and polyetheramine (Jeffamine) systems. Three cured epoxy networks were prepared by using three types of Jeffamines having different molecular masses and polyether segment in the chain. The effect of epoxy to Jeffamine stoichiometric and sub-stoichiometric ratios and molecular mass of Jeffamines on curing behaviour, mechanical properties and thermal behaviour of the resulting networks were investigated. The results were explained using Fourier transform infrared (FTIR) spectroscopic analysis. The epoxy systems with optimised epoxy/amine ratios were studied for their cure behaviour using temperature modulated differential scanning colorimetric (MDSC) analysis. Isoconversion kinetics was studied to find out activation energy, pre-exponential factor. The conversion function,
f(a)
was found to be fitting as Sestak–Berggren model. Thermal behaviour of the epoxy networks was determined by a non-isothermal thermogravimetric analysis (TGA) both in nitrogen and air envelop. The thermal stability of the rubbery epoxy systems is observed to be much better than the conventional rubbers having unsaturation. |
| doi_str_mv | 10.1007/s10973-023-12737-6 |
| format | Article |
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f(a)
was found to be fitting as Sestak–Berggren model. Thermal behaviour of the epoxy networks was determined by a non-isothermal thermogravimetric analysis (TGA) both in nitrogen and air envelop. The thermal stability of the rubbery epoxy systems is observed to be much better than the conventional rubbers having unsaturation.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1007/s10973-023-12737-6</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Activation energy ; Amines ; Analysis ; Analytical Chemistry ; Chemistry ; Chemistry and Materials Science ; Epoxy resins ; Fourier transforms ; Infrared analysis ; Inorganic Chemistry ; Kinetics ; Measurement Science and Instrumentation ; Mechanical properties ; Medical research ; Medicine, Experimental ; Networks ; Physical Chemistry ; Polyethers ; Polymer Sciences ; Stability analysis ; Stoichiometry ; Thermal degradation ; Thermal stability ; Thermodynamic properties ; Thermogravimetric analysis</subject><ispartof>Journal of thermal analysis and calorimetry, 2024-02, Vol.149 (3), p.1073-1087</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>COPYRIGHT 2024 Springer</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c371t-1a1211e7a9f517cec0e1ffa0acdd76d551012de9949e6d51adc56a5363b51bb53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10973-023-12737-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10973-023-12737-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Ratna, Debdatta</creatorcontrib><creatorcontrib>Jagtap, S. B.</creatorcontrib><creatorcontrib>Nimje, R.</creatorcontrib><creatorcontrib>Chakraborty, B. C.</creatorcontrib><title>Cure kinetics and thermal degradation characteristics of epoxy/polyetheramine systems</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>In this paper, we report detailed cure kinetics of epoxy and polyetheramine (Jeffamine) systems. Three cured epoxy networks were prepared by using three types of Jeffamines having different molecular masses and polyether segment in the chain. The effect of epoxy to Jeffamine stoichiometric and sub-stoichiometric ratios and molecular mass of Jeffamines on curing behaviour, mechanical properties and thermal behaviour of the resulting networks were investigated. The results were explained using Fourier transform infrared (FTIR) spectroscopic analysis. The epoxy systems with optimised epoxy/amine ratios were studied for their cure behaviour using temperature modulated differential scanning colorimetric (MDSC) analysis. Isoconversion kinetics was studied to find out activation energy, pre-exponential factor. The conversion function,
f(a)
was found to be fitting as Sestak–Berggren model. Thermal behaviour of the epoxy networks was determined by a non-isothermal thermogravimetric analysis (TGA) both in nitrogen and air envelop. The thermal stability of the rubbery epoxy systems is observed to be much better than the conventional rubbers having unsaturation.</description><subject>Activation energy</subject><subject>Amines</subject><subject>Analysis</subject><subject>Analytical Chemistry</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Epoxy resins</subject><subject>Fourier transforms</subject><subject>Infrared analysis</subject><subject>Inorganic Chemistry</subject><subject>Kinetics</subject><subject>Measurement Science and Instrumentation</subject><subject>Mechanical properties</subject><subject>Medical research</subject><subject>Medicine, Experimental</subject><subject>Networks</subject><subject>Physical Chemistry</subject><subject>Polyethers</subject><subject>Polymer Sciences</subject><subject>Stability analysis</subject><subject>Stoichiometry</subject><subject>Thermal degradation</subject><subject>Thermal stability</subject><subject>Thermodynamic properties</subject><subject>Thermogravimetric analysis</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kU1LAzEQhhdR8PMPeFrw5GFrZtNsukcpfhQKgtpzmCazNdrdrEkK9t-btoIURHLIJDzPJMObZZfABsCYvAnAaskLVvICSsllUR1kJyBGo6Ksy-ow1TzVFQh2nJ2G8M4Yq2sGJ9lsvPKUf9iOotUhx87k8Y18i8vc0MKjwWhdl-s39KgjeRu2nGty6t3X-qZ3yzVtDGxTjzysQ6Q2nGdHDS4DXfzsZ9ns_u51_FhMnx4m49tpobmEWABCCUAS60aA1KQZQdMgQ22MrIwQwKA0VNfDmtIR0GhRoeAVnwuYzwU_y652fXvvPlcUonp3K9-lJ1WaeyhByuHwl1rgkpTtGhfTMK0NWt3KUckqmb6RqMEfVFqGWqtdR41N93vC9Z6QmEhfcYGrENTk5XmfLXes9i4ET43qvW3RrxUwtUlQ7RJUKUG1TVBVSeI7KSS4W5D_ne4f6xuQfJ1s</recordid><startdate>20240201</startdate><enddate>20240201</enddate><creator>Ratna, Debdatta</creator><creator>Jagtap, S. 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The results were explained using Fourier transform infrared (FTIR) spectroscopic analysis. The epoxy systems with optimised epoxy/amine ratios were studied for their cure behaviour using temperature modulated differential scanning colorimetric (MDSC) analysis. Isoconversion kinetics was studied to find out activation energy, pre-exponential factor. The conversion function,
f(a)
was found to be fitting as Sestak–Berggren model. Thermal behaviour of the epoxy networks was determined by a non-isothermal thermogravimetric analysis (TGA) both in nitrogen and air envelop. The thermal stability of the rubbery epoxy systems is observed to be much better than the conventional rubbers having unsaturation.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s10973-023-12737-6</doi><tpages>15</tpages></addata></record> |
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| subjects | Activation energy Amines Analysis Analytical Chemistry Chemistry Chemistry and Materials Science Epoxy resins Fourier transforms Infrared analysis Inorganic Chemistry Kinetics Measurement Science and Instrumentation Mechanical properties Medical research Medicine, Experimental Networks Physical Chemistry Polyethers Polymer Sciences Stability analysis Stoichiometry Thermal degradation Thermal stability Thermodynamic properties Thermogravimetric analysis |
| title | Cure kinetics and thermal degradation characteristics of epoxy/polyetheramine systems |
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