Ethylene-propylene-diene (EPDM) rubber/borax composite: kinetic thermal studies
This research studies the effect of borax on the thermal stability and thermal kinetic behavior of ethylene-propylene-diene (EPDM) rubber composites. Using a laboratory two-roll mill at room temperature, carbon-black (N-220) as filler, and other additives such as zinc oxide, stearic acid, and paraff...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIMS Press
2023-07-01
|
| Series: | AIMS Materials Science |
| Subjects: | |
| Online Access: | https://www.aimspress.com/article/doi/10.3934/matersci.2023031?viewType=HTML |
| _version_ | 1827791631048245248 |
|---|---|
| author | Alaa Ebrahiem Sobhy S Ibrahim Ahmed M El-Khaib Ahmed S Doma |
| author_facet | Alaa Ebrahiem Sobhy S Ibrahim Ahmed M El-Khaib Ahmed S Doma |
| author_sort | Alaa Ebrahiem |
| collection | DOAJ |
| description | This research studies the effect of borax on the thermal stability and thermal kinetic behavior of ethylene-propylene-diene (EPDM) rubber composites. Using a laboratory two-roll mill at room temperature, carbon-black (N-220) as filler, and other additives such as zinc oxide, stearic acid, and paraffin oil were incorporated into the EPDM rubber matrix. The composite was prepared at different borax concentrations (25 and 50 phr). Thermogravimetric analysis was performed to characterize borax's effect onthermal stability before and after borax addition. Added borax to the host composite rubber (EPDM composite without borax) significantly improved the composite's thermal stability. Borax-loaded composites behave differently at various temperatures. To investigate the kinetic-thermal analysis of the prepared samples, three different models were applied. The activation energy (Ea) and frequency factors (A) for the Horowitz-Metzger, Broido and Coats-Redfern models were calculated. These models were compared and discussed based on their results. First-order decomposition also represented the main decomposition stage. Kraus and Cunnen-Russel models were used to test the interaction between rubber and borax based on previously published swelling results. No interaction was found between rubber and borax. |
| first_indexed | 2024-03-11T17:49:38Z |
| format | Article |
| id | doaj.art-030e8c6083e4400d868565e75f22ac0b |
| institution | Directory Open Access Journal |
| issn | 2372-0484 |
| language | English |
| last_indexed | 2024-03-11T17:49:38Z |
| publishDate | 2023-07-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | AIMS Materials Science |
| spelling | doaj.art-030e8c6083e4400d868565e75f22ac0b2023-10-18T06:55:32ZengAIMS PressAIMS Materials Science2372-04842023-07-0110455657410.3934/matersci.2023031Ethylene-propylene-diene (EPDM) rubber/borax composite: kinetic thermal studiesAlaa Ebrahiem 0Sobhy S Ibrahim1Ahmed M El-Khaib 2 Ahmed S Doma31. Physics Department, Faculty of Science, Cairo University, Giza, Egypt1. Physics Department, Faculty of Science, Cairo University, Giza, Egypt2. Physics Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt3. Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg Al-Arab City, 21934 Alexandria, EgyptThis research studies the effect of borax on the thermal stability and thermal kinetic behavior of ethylene-propylene-diene (EPDM) rubber composites. Using a laboratory two-roll mill at room temperature, carbon-black (N-220) as filler, and other additives such as zinc oxide, stearic acid, and paraffin oil were incorporated into the EPDM rubber matrix. The composite was prepared at different borax concentrations (25 and 50 phr). Thermogravimetric analysis was performed to characterize borax's effect onthermal stability before and after borax addition. Added borax to the host composite rubber (EPDM composite without borax) significantly improved the composite's thermal stability. Borax-loaded composites behave differently at various temperatures. To investigate the kinetic-thermal analysis of the prepared samples, three different models were applied. The activation energy (Ea) and frequency factors (A) for the Horowitz-Metzger, Broido and Coats-Redfern models were calculated. These models were compared and discussed based on their results. First-order decomposition also represented the main decomposition stage. Kraus and Cunnen-Russel models were used to test the interaction between rubber and borax based on previously published swelling results. No interaction was found between rubber and borax.https://www.aimspress.com/article/doi/10.3934/matersci.2023031?viewType=HTMLepdmrubber compositethermal stabilitykinetic thermal analysisboraxkinetic modelshorowitz-metzgerbroido modelcoats-redfern |
| spellingShingle | Alaa Ebrahiem Sobhy S Ibrahim Ahmed M El-Khaib Ahmed S Doma Ethylene-propylene-diene (EPDM) rubber/borax composite: kinetic thermal studies AIMS Materials Science epdm rubber composite thermal stability kinetic thermal analysis borax kinetic models horowitz-metzger broido model coats-redfern |
| title | Ethylene-propylene-diene (EPDM) rubber/borax composite: kinetic thermal studies |
| title_full | Ethylene-propylene-diene (EPDM) rubber/borax composite: kinetic thermal studies |
| title_fullStr | Ethylene-propylene-diene (EPDM) rubber/borax composite: kinetic thermal studies |
| title_full_unstemmed | Ethylene-propylene-diene (EPDM) rubber/borax composite: kinetic thermal studies |
| title_short | Ethylene-propylene-diene (EPDM) rubber/borax composite: kinetic thermal studies |
| title_sort | ethylene propylene diene epdm rubber borax composite kinetic thermal studies |
| topic | epdm rubber composite thermal stability kinetic thermal analysis borax kinetic models horowitz-metzger broido model coats-redfern |
| url | https://www.aimspress.com/article/doi/10.3934/matersci.2023031?viewType=HTML |
| work_keys_str_mv | AT alaaebrahiem ethylenepropylenedieneepdmrubberboraxcompositekineticthermalstudies AT sobhysibrahim ethylenepropylenedieneepdmrubberboraxcompositekineticthermalstudies AT ahmedmelkhaib ethylenepropylenedieneepdmrubberboraxcompositekineticthermalstudies AT ahmedsdoma ethylenepropylenedieneepdmrubberboraxcompositekineticthermalstudies |