Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphate
A cobalt metal-organic framework (Co-MOF) was successfully prepared, and its combination with melamine polyphosphate (MPP) was studied to enhance the fire retardant properties of polypropylene (PP) composites. The morphology, composition, and structure of PP/MPP/Co-MOF composites were characterized...
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| Format: | Article |
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Elsevier
2022-12-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941822002860 |
| _version_ | 1828106736746102784 |
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| author | Ya Xu Ru Zhou Gang Ma Lisha Deng Huimin Liu Yanming Ding Juncheng Jiang |
| author_facet | Ya Xu Ru Zhou Gang Ma Lisha Deng Huimin Liu Yanming Ding Juncheng Jiang |
| author_sort | Ya Xu |
| collection | DOAJ |
| description | A cobalt metal-organic framework (Co-MOF) was successfully prepared, and its combination with melamine polyphosphate (MPP) was studied to enhance the fire retardant properties of polypropylene (PP) composites. The morphology, composition, and structure of PP/MPP/Co-MOF composites were characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The maximum limiting oxygen index of the PP/MPP/Co-MOF composite was 26.8%, which is 49% higher than that of pure PP and its combustion grade reached the V-0 level. When 2 wt% Co-MOF was added, the carbon residue of the composite reached 19.6 wt%, peak heat release rate was significantly reduced, smoke emission was suppressed, fire growth index was significantly reduced, and the fire risk of the composite was effectively reduced. Analysis of the carbon residue showed that aggregated carbon spheres were present on the carbon residue surface of the composite material supplemented with Co-MOF. The generation of carbon spheres effectively prevented the heat exchange and release of combustible gas during the combustion of the composite material, significantly improving the flame retardancy and stability of the material. As a new material, MOF has great innovation and necessity in researching polymer flame retardant. Moreover, the latest composite materials synthesized in this paper contribute to environmental safety to a great extent. |
| first_indexed | 2024-04-11T10:21:50Z |
| format | Article |
| id | doaj.art-afc0bd1584d64961882506426d5fffb3 |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-04-11T10:21:50Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-afc0bd1584d64961882506426d5fffb32022-12-22T04:29:44ZengElsevierPolymer Testing0142-94182022-12-01116107765Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphateYa Xu0Ru Zhou1Gang Ma2Lisha Deng3Huimin Liu4Yanming Ding5Juncheng Jiang6Jiangsu Key Laboratory of Urban and Industrial Safety, College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, ChinaJiangsu Key Laboratory of Urban and Industrial Safety, College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, China; Corresponding author.Taizhou Special Equipment Inspection and Testing Research Institute, Taizhou, 318000, Zhejiang, ChinaJiangsu Key Laboratory of Urban and Industrial Safety, College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, ChinaJiangsu Key Laboratory of Urban and Industrial Safety, College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, ChinaFaculty of Engineering, China University of Geosciences, Wuhan, 430074, ChinaJiangsu Key Laboratory of Urban and Industrial Safety, College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, ChinaA cobalt metal-organic framework (Co-MOF) was successfully prepared, and its combination with melamine polyphosphate (MPP) was studied to enhance the fire retardant properties of polypropylene (PP) composites. The morphology, composition, and structure of PP/MPP/Co-MOF composites were characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The maximum limiting oxygen index of the PP/MPP/Co-MOF composite was 26.8%, which is 49% higher than that of pure PP and its combustion grade reached the V-0 level. When 2 wt% Co-MOF was added, the carbon residue of the composite reached 19.6 wt%, peak heat release rate was significantly reduced, smoke emission was suppressed, fire growth index was significantly reduced, and the fire risk of the composite was effectively reduced. Analysis of the carbon residue showed that aggregated carbon spheres were present on the carbon residue surface of the composite material supplemented with Co-MOF. The generation of carbon spheres effectively prevented the heat exchange and release of combustible gas during the combustion of the composite material, significantly improving the flame retardancy and stability of the material. As a new material, MOF has great innovation and necessity in researching polymer flame retardant. Moreover, the latest composite materials synthesized in this paper contribute to environmental safety to a great extent.http://www.sciencedirect.com/science/article/pii/S0142941822002860PolypropyleneCobalt metal-organic frameworkMelamine polyphosphateFlame retardant |
| spellingShingle | Ya Xu Ru Zhou Gang Ma Lisha Deng Huimin Liu Yanming Ding Juncheng Jiang Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphate Polymer Testing Polypropylene Cobalt metal-organic framework Melamine polyphosphate Flame retardant |
| title | Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphate |
| title_full | Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphate |
| title_fullStr | Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphate |
| title_full_unstemmed | Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphate |
| title_short | Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphate |
| title_sort | preparation of a cobalt metal organic framework co mof and its application as a polypropylene flame retardant by compounding with melamine polyphosphate |
| topic | Polypropylene Cobalt metal-organic framework Melamine polyphosphate Flame retardant |
| url | http://www.sciencedirect.com/science/article/pii/S0142941822002860 |
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