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Lagarinhos J, Magalhães da Silva S, Oliveira JM. Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller Size. Polymers (Basel) 2023; 15:4109. [PMID: 37896362 PMCID: PMC10610371 DOI: 10.3390/polym15204109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/29/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Thermoplastic resin transfer molding (T-RTM) technology was applied to synthesize graphene nanoplatelets-based nanocomposites via anionic ring-opening polymerization (AROP). Polyamide 6 (PA6) was obtained by AROP and was used as the polymeric matrix of the developed nanocomposites. The non-isothermal crystallization behavior of PA6 and nanocomposites was analyzed by differential scanning calorimetry (DSC). Nanocomposites with 0.5 wt.% of graphene nanoplatelets (GNPs) with two different diameter sizes were prepared. Results have shown that the crystallization temperature shifted to higher values in the presence of GNPs. This behavior is more noticeable for the nanocomposite prepared with smaller GNPs (PA6/GN). The crystallization kinetic behavior of all samples was assessed by Avrami and Liu's models. It was observed that GNPs increased the crystallization rate, thus revealing a nucleating ability, and also validated the reduction of half-time crystallization values. Such tendency was also supported by the lower activation energy values determined by Friedman's method.
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Affiliation(s)
- Joana Lagarinhos
- EMaRT Group—Emerging: Materials, Research, Technology, University of Aveiro, 3810-193 Aveiro, Portugal; (J.L.); (J.M.O.)
- School of Design, Management and Production Technologies, University of Aveiro, Estrada do Cercal 449, 3720-509 Oliveira de Azeméis, Portugal
- CICECO—Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sara Magalhães da Silva
- EMaRT Group—Emerging: Materials, Research, Technology, University of Aveiro, 3810-193 Aveiro, Portugal; (J.L.); (J.M.O.)
- School of Design, Management and Production Technologies, University of Aveiro, Estrada do Cercal 449, 3720-509 Oliveira de Azeméis, Portugal
- CICECO—Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - José Martinho Oliveira
- EMaRT Group—Emerging: Materials, Research, Technology, University of Aveiro, 3810-193 Aveiro, Portugal; (J.L.); (J.M.O.)
- School of Design, Management and Production Technologies, University of Aveiro, Estrada do Cercal 449, 3720-509 Oliveira de Azeméis, Portugal
- CICECO—Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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Atiqullah M, Al‐Asiri HS. Polyolefin Catalyst Research: A Product‐Driven Industrial Perspective. CHEM REC 2022; 22:e202100321. [DOI: 10.1002/tcr.202100321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Muhammad Atiqullah
- Interdisciplinary Research Center for Refining & Advanced Chemicals (IRCRAC) Research Institute King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Hassan S. Al‐Asiri
- Interdisciplinary Research Center for Refining & Advanced Chemicals (IRCRAC) Research Institute King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
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Alade O, Gang L, Tariq Z, Mahmoud M, Al Shehri D, Sultan A, Al‐Ramadhan A, Mokheimer E. Kinetic and thermodynamic modelling of thermal decomposition of bitumen under high pressure enhanced with simulated annealing and artificial intelligence. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Olalekan Alade
- Department of Petroleum Engineering College of Petroleum and Geosciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
- Center for Integrative Petroleum Research (CIPR), College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
| | - Lei Gang
- Department of Petroleum Engineering College of Petroleum and Geosciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
| | - Zeeshan Tariq
- Department of Petroleum Engineering College of Petroleum and Geosciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
| | - Mohamed Mahmoud
- Department of Petroleum Engineering College of Petroleum and Geosciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
| | - Dhafer Al Shehri
- Department of Petroleum Engineering College of Petroleum and Geosciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
| | - Abdullah Sultan
- Department of Petroleum Engineering College of Petroleum and Geosciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
| | - Ammar Al‐Ramadhan
- Department of Petroleum Engineering College of Petroleum and Geosciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
| | - Esmail Mokheimer
- Department of Mechanical Engineering College of Sciences, King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
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