Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin
As an important thermosetting material, flame-retardant epoxy resin has various applications in the aerospace, chemical, and electronics industry, and other fields. However, the flame retardancy of epoxy resins is often improved at the expense of mechanical performance. The contradiction between fla...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/14/5354 |
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| author | Jiashui Lan Dingsi Li Wei Zhong Wenhui Luo Huagui Zhang Mingfeng Chen |
| author_facet | Jiashui Lan Dingsi Li Wei Zhong Wenhui Luo Huagui Zhang Mingfeng Chen |
| author_sort | Jiashui Lan |
| collection | DOAJ |
| description | As an important thermosetting material, flame-retardant epoxy resin has various applications in the aerospace, chemical, and electronics industry, and other fields. However, the flame retardancy of epoxy resins is often improved at the expense of mechanical performance. The contradiction between flame retardancy and mechanical properties seriously impedes the practical applications of epoxy resin (EP). Herein, iron-loaded polydopamine functionalized montmorillonite (D-Mt-Fe<sup>3+</sup>), which was prepared by dopamine, iron chloride and montmorillonite in an aqueous solution, was introduced to prepare iron-loaded polydopamine functionalized montmorillonite/epoxy resin composites (D-Mt-Fe<sup>3+</sup>/EP). As expected, D-Mt-Fe<sup>3+</sup>/EP-10 with 10 phr of D-Mt-Fe<sup>3+</sup> passed the UL-94 V-0 rating, achieved a limiting oxygen index (LOI) value of 31.0% and reduced the smoke production rate (SPR) and total smoke production (TSP), indicating that the introduction of D-Mt-Fe<sup>3+</sup> could endow EP with satisfactory flame retardancy through the radical scavenging function of dopamine in the gas phase and the catalytic charring effect of iron ions, respectively. Encouragingly, the mechanical property was also enhanced with the flexural strength increased by 25.5%. This work provided an attractive strategy for improving both the mechanical properties and fire resistance of EP, which greatly broadened their applications in the chemical industry and electronics field, etc. |
| first_indexed | 2024-03-11T00:47:46Z |
| format | Article |
| id | doaj.art-3f52d9a83d5546e5a0882e136150e105 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T00:47:46Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-3f52d9a83d5546e5a0882e136150e1052023-11-18T20:40:53ZengMDPI AGMolecules1420-30492023-07-012814535410.3390/molecules28145354Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy ResinJiashui Lan0Dingsi Li1Wei Zhong2Wenhui Luo3Huagui Zhang4Mingfeng Chen5Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, ChinaFujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, ChinaResearch and Development Department, Waexim (Xiamen) New Materials Co., Ltd., Xiamen 361023, ChinaFujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, ChinaFujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, ChinaFujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, ChinaAs an important thermosetting material, flame-retardant epoxy resin has various applications in the aerospace, chemical, and electronics industry, and other fields. However, the flame retardancy of epoxy resins is often improved at the expense of mechanical performance. The contradiction between flame retardancy and mechanical properties seriously impedes the practical applications of epoxy resin (EP). Herein, iron-loaded polydopamine functionalized montmorillonite (D-Mt-Fe<sup>3+</sup>), which was prepared by dopamine, iron chloride and montmorillonite in an aqueous solution, was introduced to prepare iron-loaded polydopamine functionalized montmorillonite/epoxy resin composites (D-Mt-Fe<sup>3+</sup>/EP). As expected, D-Mt-Fe<sup>3+</sup>/EP-10 with 10 phr of D-Mt-Fe<sup>3+</sup> passed the UL-94 V-0 rating, achieved a limiting oxygen index (LOI) value of 31.0% and reduced the smoke production rate (SPR) and total smoke production (TSP), indicating that the introduction of D-Mt-Fe<sup>3+</sup> could endow EP with satisfactory flame retardancy through the radical scavenging function of dopamine in the gas phase and the catalytic charring effect of iron ions, respectively. Encouragingly, the mechanical property was also enhanced with the flexural strength increased by 25.5%. This work provided an attractive strategy for improving both the mechanical properties and fire resistance of EP, which greatly broadened their applications in the chemical industry and electronics field, etc.https://www.mdpi.com/1420-3049/28/14/5354epoxy resiniron-loaded polydopaminemontmorilloniteflame retardancy |
| spellingShingle | Jiashui Lan Dingsi Li Wei Zhong Wenhui Luo Huagui Zhang Mingfeng Chen Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin Molecules epoxy resin iron-loaded polydopamine montmorillonite flame retardancy |
| title | Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin |
| title_full | Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin |
| title_fullStr | Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin |
| title_full_unstemmed | Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin |
| title_short | Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin |
| title_sort | bio inspired iron loaded polydopamine functionalized montmorillonite as an environmentally friendly flame retardant for epoxy resin |
| topic | epoxy resin iron-loaded polydopamine montmorillonite flame retardancy |
| url | https://www.mdpi.com/1420-3049/28/14/5354 |
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