Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene Nanocomposites
The flame retardancy of layered double hydroxides (LDHs) correlates with their structure and dispersion in a polymeric matrix. To improve the flame retardant effectiveness of Mg-Al LDH in polyethylene (PE), 2-carboxy ethyl (phenyl) phosphinic acid (CEPPA) was adopted as a flame retardant modifier to...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/8/1616 |
| _version_ | 1797444027045380096 |
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| author | Tiefeng Zhang Chunfeng Wang Yue Wang Yongliang Wang Zhidong Han |
| author_facet | Tiefeng Zhang Chunfeng Wang Yue Wang Yongliang Wang Zhidong Han |
| author_sort | Tiefeng Zhang |
| collection | DOAJ |
| description | The flame retardancy of layered double hydroxides (LDHs) correlates with their structure and dispersion in a polymeric matrix. To improve the flame retardant effectiveness of Mg-Al LDH in polyethylene (PE), 2-carboxy ethyl (phenyl) phosphinic acid (CEPPA) was adopted as a flame retardant modifier to prepare CEPPA-intercalated LDH (CLDH) by the regeneration method, which was then exfoliated in PE by melt blending in the form of a masterbatch prepared from solution mixing. By compounding CLDH with intumescent flame retardant (IFR) composed of ammonium polyphosphate (APP) and pentaerythritol (PER), the thermal degradation and combustion behaviors of the flame retardant PE-based composites were investigated to reveal the flame retardant mechanism between CLDH and IFR in PE. The reactions between CLDH and IFR were revealed to make a predominant contribution to the compact and fully developed char of PE/IFR/CLDH, which enhanced the flame retardancy of the composites. |
| first_indexed | 2024-03-09T13:06:35Z |
| format | Article |
| id | doaj.art-5c81c8c20ce3495587a59732126d8399 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T13:06:35Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-5c81c8c20ce3495587a59732126d83992023-11-30T21:47:46ZengMDPI AGPolymers2073-43602022-04-01148161610.3390/polym14081616Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene NanocompositesTiefeng Zhang0Chunfeng Wang1Yue Wang2Yongliang Wang3Zhidong Han4School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, ChinaSchool of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, ChinaSchool of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, ChinaSchool of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, ChinaThe flame retardancy of layered double hydroxides (LDHs) correlates with their structure and dispersion in a polymeric matrix. To improve the flame retardant effectiveness of Mg-Al LDH in polyethylene (PE), 2-carboxy ethyl (phenyl) phosphinic acid (CEPPA) was adopted as a flame retardant modifier to prepare CEPPA-intercalated LDH (CLDH) by the regeneration method, which was then exfoliated in PE by melt blending in the form of a masterbatch prepared from solution mixing. By compounding CLDH with intumescent flame retardant (IFR) composed of ammonium polyphosphate (APP) and pentaerythritol (PER), the thermal degradation and combustion behaviors of the flame retardant PE-based composites were investigated to reveal the flame retardant mechanism between CLDH and IFR in PE. The reactions between CLDH and IFR were revealed to make a predominant contribution to the compact and fully developed char of PE/IFR/CLDH, which enhanced the flame retardancy of the composites.https://www.mdpi.com/2073-4360/14/8/1616layered double hydroxidespolyethyleneintumescent flame retardant2-carboxy ethyl (phenyl) phosphinic acidthermal degradationcone calorimeter |
| spellingShingle | Tiefeng Zhang Chunfeng Wang Yue Wang Yongliang Wang Zhidong Han Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene Nanocomposites Polymers layered double hydroxides polyethylene intumescent flame retardant 2-carboxy ethyl (phenyl) phosphinic acid thermal degradation cone calorimeter |
| title | Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene Nanocomposites |
| title_full | Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene Nanocomposites |
| title_fullStr | Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene Nanocomposites |
| title_full_unstemmed | Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene Nanocomposites |
| title_short | Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene Nanocomposites |
| title_sort | effects of modified layered double hydroxides on the thermal degradation and combustion behaviors of intumescent flame retardant polyethylene nanocomposites |
| topic | layered double hydroxides polyethylene intumescent flame retardant 2-carboxy ethyl (phenyl) phosphinic acid thermal degradation cone calorimeter |
| url | https://www.mdpi.com/2073-4360/14/8/1616 |
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