Synergistic Function between Phosphorus-Containing Flame Retardant and Multi-Walled Carbon Nanotubes towards Fire Safe Polystyrene Composites with Enhanced Electromagnetic Interference Shielding
As a universal polymer material, polystyrene (PS) is widely applied in electrical devices and construction. Thus, it is necessary to improve the flame retardancy and electromagnetic shielding properties of PS material. In this work, PS/silicon-wrapped ammonium polyphosphate/Inorganic acid-treated mu...
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MDPI AG
2022-11-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/23/21/13434 |
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| author | Ruizhe Huang Caiqin Gao Yongqian Shi Libi Fu Yuezhan Feng Wei Shui |
| author_facet | Ruizhe Huang Caiqin Gao Yongqian Shi Libi Fu Yuezhan Feng Wei Shui |
| author_sort | Ruizhe Huang |
| collection | DOAJ |
| description | As a universal polymer material, polystyrene (PS) is widely applied in electrical devices and construction. Thus, it is necessary to improve the flame retardancy and electromagnetic shielding properties of PS material. In this work, PS/silicon-wrapped ammonium polyphosphate/Inorganic acid-treated multi-walled carbon nanotubes composites (PS/SiAPP/aMWCNT, abbreviated as PAC) were prepared via methods of filtration-induced assembly and hot-pressing. Morphology and structure characterization demonstrated that SiAPP and aMWCNT had good dispersion in PS and excellent compatibility with the PS matrix. Thermogravimetric analysis revealed that the addition of aMWCNT to PS improved its thermal stability and carbon-forming characteristics. The peak heat release rate, the peak carbon monoxide production rate, and the peak smoke production rate of the PAC10 composite decreased by 53.7%, 41.9%, and 45.5%, respectively, while its electromagnetic shielding effectiveness reached 12 dB. These enhancements were attributed to the reason that SiAPP and aMWCNT synergistically catalyzed the char generation and SiAPP produced free radical scavengers and numbers of incombustible gases, which could decrease the oxygen concentration and retard the combustion reaction. Therefore, the assembled PS/SiAPP/aMWCNT system provides a new pathway to improve the flame retardant and electromagnetic shielding properties of PS. |
| first_indexed | 2024-03-09T18:59:39Z |
| format | Article |
| id | doaj.art-754bb366dd2c4c33960f15e120c21a49 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T18:59:39Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-754bb366dd2c4c33960f15e120c21a492023-11-24T05:07:52ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-11-0123211343410.3390/ijms232113434Synergistic Function between Phosphorus-Containing Flame Retardant and Multi-Walled Carbon Nanotubes towards Fire Safe Polystyrene Composites with Enhanced Electromagnetic Interference ShieldingRuizhe Huang0Caiqin Gao1Yongqian Shi2Libi Fu3Yuezhan Feng4Wei Shui5College of Environment and Safety Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, ChinaCollege of Environment and Safety Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, ChinaCollege of Environment and Safety Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, ChinaCollege of Civil Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, ChinaKey Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, ChinaCollege of Environment and Safety Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, ChinaAs a universal polymer material, polystyrene (PS) is widely applied in electrical devices and construction. Thus, it is necessary to improve the flame retardancy and electromagnetic shielding properties of PS material. In this work, PS/silicon-wrapped ammonium polyphosphate/Inorganic acid-treated multi-walled carbon nanotubes composites (PS/SiAPP/aMWCNT, abbreviated as PAC) were prepared via methods of filtration-induced assembly and hot-pressing. Morphology and structure characterization demonstrated that SiAPP and aMWCNT had good dispersion in PS and excellent compatibility with the PS matrix. Thermogravimetric analysis revealed that the addition of aMWCNT to PS improved its thermal stability and carbon-forming characteristics. The peak heat release rate, the peak carbon monoxide production rate, and the peak smoke production rate of the PAC10 composite decreased by 53.7%, 41.9%, and 45.5%, respectively, while its electromagnetic shielding effectiveness reached 12 dB. These enhancements were attributed to the reason that SiAPP and aMWCNT synergistically catalyzed the char generation and SiAPP produced free radical scavengers and numbers of incombustible gases, which could decrease the oxygen concentration and retard the combustion reaction. Therefore, the assembled PS/SiAPP/aMWCNT system provides a new pathway to improve the flame retardant and electromagnetic shielding properties of PS.https://www.mdpi.com/1422-0067/23/21/13434flame retardancyelectromagnetic interference shieldingmultiple effectsmulti-walled carbon nanotube |
| spellingShingle | Ruizhe Huang Caiqin Gao Yongqian Shi Libi Fu Yuezhan Feng Wei Shui Synergistic Function between Phosphorus-Containing Flame Retardant and Multi-Walled Carbon Nanotubes towards Fire Safe Polystyrene Composites with Enhanced Electromagnetic Interference Shielding International Journal of Molecular Sciences flame retardancy electromagnetic interference shielding multiple effects multi-walled carbon nanotube |
| title | Synergistic Function between Phosphorus-Containing Flame Retardant and Multi-Walled Carbon Nanotubes towards Fire Safe Polystyrene Composites with Enhanced Electromagnetic Interference Shielding |
| title_full | Synergistic Function between Phosphorus-Containing Flame Retardant and Multi-Walled Carbon Nanotubes towards Fire Safe Polystyrene Composites with Enhanced Electromagnetic Interference Shielding |
| title_fullStr | Synergistic Function between Phosphorus-Containing Flame Retardant and Multi-Walled Carbon Nanotubes towards Fire Safe Polystyrene Composites with Enhanced Electromagnetic Interference Shielding |
| title_full_unstemmed | Synergistic Function between Phosphorus-Containing Flame Retardant and Multi-Walled Carbon Nanotubes towards Fire Safe Polystyrene Composites with Enhanced Electromagnetic Interference Shielding |
| title_short | Synergistic Function between Phosphorus-Containing Flame Retardant and Multi-Walled Carbon Nanotubes towards Fire Safe Polystyrene Composites with Enhanced Electromagnetic Interference Shielding |
| title_sort | synergistic function between phosphorus containing flame retardant and multi walled carbon nanotubes towards fire safe polystyrene composites with enhanced electromagnetic interference shielding |
| topic | flame retardancy electromagnetic interference shielding multiple effects multi-walled carbon nanotube |
| url | https://www.mdpi.com/1422-0067/23/21/13434 |
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