Molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration: Bisphenol AF, sulfone, ether bonds and hydroxyl groups
Good atmospheric environment is the prerequisite for green development of technology. Industrial waste gas emission is one of the major causes of air pollution. To investigate the influence of Polyimide (PI) molecular structure on properties (especially thermal performance) and macroscopic porosity,...
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Elsevier
2025-03-01
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| Series: | Materials Today Advances |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590049825000098 |
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| author | Xinming Wang Yongqi Wang Anning Sun Yan Liu Zhiyong Xiao Ziyang Gao Ke Ma Zhizhi Hu Wei Chen |
| author_facet | Xinming Wang Yongqi Wang Anning Sun Yan Liu Zhiyong Xiao Ziyang Gao Ke Ma Zhizhi Hu Wei Chen |
| author_sort | Xinming Wang |
| collection | DOAJ |
| description | Good atmospheric environment is the prerequisite for green development of technology. Industrial waste gas emission is one of the major causes of air pollution. To investigate the influence of Polyimide (PI) molecular structure on properties (especially thermal performance) and macroscopic porosity, 6FAP, HFBAPP, and BAPS were used to aggregate with 6FDA, respectively. The obtained Polyamide acid (PAA) solution was used to prepare PAA nanofiber (NFs) membranes by electrospinning technology, and PI nanofiber membranes were obtained by high-temperature dehydration condensation. ODPA copolymerization is the intrinsic modification method in this work. The differences in thermal properties, mechanical properties, surface morphology, and air filtration performance of PI nanofiber membranes were examined with six different formulations. The results showed that the PI-ODPA copolymerization nanofibers had high pore structure, and the particle filtration performance increased accordingly. The particle filtration performances of 6FAP-6FDA, HFBAPP-6FDA, and BAPS-6FDA were all exceed 81 %. After ODPA copolymerized modification, HFBAPP-6FDA-ODPA nanofiber membranes can reach a maximum of 95.42 %. In addition, the Tg and Td5 of all NFs reached 250 °C and 455 °C, indicating good thermal performance. Based on the above studies, the performance of PI NFs membrane can be improved by molecular structure designed and copolymerization, with a broader application prospect in the field of high-temperature filtration. |
| format | Article |
| id | doaj-art-24a93f9ceb5248918fa512c2ddfd5120 |
| institution | Kabale University |
| issn | 2590-0498 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials Today Advances |
| spelling | doaj-art-24a93f9ceb5248918fa512c2ddfd51202025-02-06T05:12:41ZengElsevierMaterials Today Advances2590-04982025-03-0125100564Molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration: Bisphenol AF, sulfone, ether bonds and hydroxyl groupsXinming Wang0Yongqi Wang1Anning Sun2Yan Liu3Zhiyong Xiao4Ziyang Gao5Ke Ma6Zhizhi Hu7Wei Chen8School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, ChinaLiaoning Agricultural Technical College, Yingkou, Liaoning, 115009, ChinaSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, ChinaSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, ChinaSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, ChinaSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, ChinaSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, China; Corresponding author.School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, China; Oxiranchem Holding Group Co. Ltd, Liaoyang, 111003, China; Corresponding authorSchool of Chips, XJTLU Entrepreneur College (Taicang), Xi'an Jiaotong-Liverpool University, Taicang, Suzhou, 215400, China; Corresponding author.Good atmospheric environment is the prerequisite for green development of technology. Industrial waste gas emission is one of the major causes of air pollution. To investigate the influence of Polyimide (PI) molecular structure on properties (especially thermal performance) and macroscopic porosity, 6FAP, HFBAPP, and BAPS were used to aggregate with 6FDA, respectively. The obtained Polyamide acid (PAA) solution was used to prepare PAA nanofiber (NFs) membranes by electrospinning technology, and PI nanofiber membranes were obtained by high-temperature dehydration condensation. ODPA copolymerization is the intrinsic modification method in this work. The differences in thermal properties, mechanical properties, surface morphology, and air filtration performance of PI nanofiber membranes were examined with six different formulations. The results showed that the PI-ODPA copolymerization nanofibers had high pore structure, and the particle filtration performance increased accordingly. The particle filtration performances of 6FAP-6FDA, HFBAPP-6FDA, and BAPS-6FDA were all exceed 81 %. After ODPA copolymerized modification, HFBAPP-6FDA-ODPA nanofiber membranes can reach a maximum of 95.42 %. In addition, the Tg and Td5 of all NFs reached 250 °C and 455 °C, indicating good thermal performance. Based on the above studies, the performance of PI NFs membrane can be improved by molecular structure designed and copolymerization, with a broader application prospect in the field of high-temperature filtration.http://www.sciencedirect.com/science/article/pii/S2590049825000098 |
| spellingShingle | Xinming Wang Yongqi Wang Anning Sun Yan Liu Zhiyong Xiao Ziyang Gao Ke Ma Zhizhi Hu Wei Chen Molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration: Bisphenol AF, sulfone, ether bonds and hydroxyl groups Materials Today Advances |
| title | Molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration: Bisphenol AF, sulfone, ether bonds and hydroxyl groups |
| title_full | Molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration: Bisphenol AF, sulfone, ether bonds and hydroxyl groups |
| title_fullStr | Molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration: Bisphenol AF, sulfone, ether bonds and hydroxyl groups |
| title_full_unstemmed | Molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration: Bisphenol AF, sulfone, ether bonds and hydroxyl groups |
| title_short | Molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration: Bisphenol AF, sulfone, ether bonds and hydroxyl groups |
| title_sort | molecular structure influence of porous intrinsic polyimide nanofiber for high temperature flue gas filtration bisphenol af sulfone ether bonds and hydroxyl groups |
| url | http://www.sciencedirect.com/science/article/pii/S2590049825000098 |
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