Flax/PP and Flax/PLA Thermoplastic Composites: Influence of Fire Retardants on the Individual Components
This study is based on previously reported reaction to fire properties of flax fibre-reinforced polymeric (polypropylene, PP and polylactic acid, PLA) composites, prepared by pre-treating the fabrics with different fire retardants (FRs) prior to composite preparation. It was observed that while all...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/11/2452 |
| _version_ | 1797550055449690112 |
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| author | Baljinder K. Kandola Wiwat Pornwannachai John Russell Ebdon |
| author_facet | Baljinder K. Kandola Wiwat Pornwannachai John Russell Ebdon |
| author_sort | Baljinder K. Kandola |
| collection | DOAJ |
| description | This study is based on previously reported reaction to fire properties of flax fibre-reinforced polymeric (polypropylene, PP and polylactic acid, PLA) composites, prepared by pre-treating the fabrics with different fire retardants (FRs) prior to composite preparation. It was observed that while all of these treatments were very effective in flax/PLA in terms of achieving a V-0 rating in a UL-94 test, only an organophosphonate FR was capable of achieving a V-0 rating for flax/PP. However, all fire-retardant treatments impaired the mechanical properties of the composites; the reduction was more in flax/PLA compared to flax/PP composites. To understand these effects further, here thermal analysis and pyrolysis combustion flow calorimetry of the composites and each component separately treated with FRs have been conducted and the results analysed in terms of the effect on each component so as to observe any interaction between the different components. The results indicated that in flax/PLA composites, the water released during FR catalysed dehydration-decomposition of flax may hydrolyse PLA, changing decomposition pathway of PLA to produce less flammable volatile, hence resulting in reduced flammability. |
| first_indexed | 2024-03-10T15:24:01Z |
| format | Article |
| id | doaj.art-c97b1d2ae6f544efa5cff04d05069bdc |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T15:24:01Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-c97b1d2ae6f544efa5cff04d05069bdc2023-11-20T18:15:56ZengMDPI AGPolymers2073-43602020-10-011211245210.3390/polym12112452Flax/PP and Flax/PLA Thermoplastic Composites: Influence of Fire Retardants on the Individual ComponentsBaljinder K. Kandola0Wiwat Pornwannachai1John Russell Ebdon2Institute for Materials Research and Innovation, University of Bolton, Deane Road, Bolton BL3 5AB, UKInstitute for Materials Research and Innovation, University of Bolton, Deane Road, Bolton BL3 5AB, UKInstitute for Materials Research and Innovation, University of Bolton, Deane Road, Bolton BL3 5AB, UKThis study is based on previously reported reaction to fire properties of flax fibre-reinforced polymeric (polypropylene, PP and polylactic acid, PLA) composites, prepared by pre-treating the fabrics with different fire retardants (FRs) prior to composite preparation. It was observed that while all of these treatments were very effective in flax/PLA in terms of achieving a V-0 rating in a UL-94 test, only an organophosphonate FR was capable of achieving a V-0 rating for flax/PP. However, all fire-retardant treatments impaired the mechanical properties of the composites; the reduction was more in flax/PLA compared to flax/PP composites. To understand these effects further, here thermal analysis and pyrolysis combustion flow calorimetry of the composites and each component separately treated with FRs have been conducted and the results analysed in terms of the effect on each component so as to observe any interaction between the different components. The results indicated that in flax/PLA composites, the water released during FR catalysed dehydration-decomposition of flax may hydrolyse PLA, changing decomposition pathway of PLA to produce less flammable volatile, hence resulting in reduced flammability.https://www.mdpi.com/2073-4360/12/11/2452natural fibre-reinforced compositespolypropylenepolylactic acidflax fibrefire retardantspyrolysis combustion flow calorimetry |
| spellingShingle | Baljinder K. Kandola Wiwat Pornwannachai John Russell Ebdon Flax/PP and Flax/PLA Thermoplastic Composites: Influence of Fire Retardants on the Individual Components Polymers natural fibre-reinforced composites polypropylene polylactic acid flax fibre fire retardants pyrolysis combustion flow calorimetry |
| title | Flax/PP and Flax/PLA Thermoplastic Composites: Influence of Fire Retardants on the Individual Components |
| title_full | Flax/PP and Flax/PLA Thermoplastic Composites: Influence of Fire Retardants on the Individual Components |
| title_fullStr | Flax/PP and Flax/PLA Thermoplastic Composites: Influence of Fire Retardants on the Individual Components |
| title_full_unstemmed | Flax/PP and Flax/PLA Thermoplastic Composites: Influence of Fire Retardants on the Individual Components |
| title_short | Flax/PP and Flax/PLA Thermoplastic Composites: Influence of Fire Retardants on the Individual Components |
| title_sort | flax pp and flax pla thermoplastic composites influence of fire retardants on the individual components |
| topic | natural fibre-reinforced composites polypropylene polylactic acid flax fibre fire retardants pyrolysis combustion flow calorimetry |
| url | https://www.mdpi.com/2073-4360/12/11/2452 |
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