Enhanced thermal and mechanical properties of flame-retardant expandable graphite modified silk fibroin-based rigid polyurethane foam
At present, in order to reduce the environmental pollution caused by the use of petrochemical products, the preparation of flame-retardant polyurethane foam (PUF) using green raw materials is increasingly attracting widespread attention. A biomass protein-based green flame-retardant rigid PUF (RPUF)...
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Elsevier
2024-12-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24014497 |
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| author | Xu Zhang Qihong Guan Qikai Xiao Zhi Wang Hua Xie |
| author_facet | Xu Zhang Qihong Guan Qikai Xiao Zhi Wang Hua Xie |
| author_sort | Xu Zhang |
| collection | DOAJ |
| description | At present, in order to reduce the environmental pollution caused by the use of petrochemical products, the preparation of flame-retardant polyurethane foam (PUF) using green raw materials is increasingly attracting widespread attention. A biomass protein-based green flame-retardant rigid PUF (RPUF) with expandable graphite (EG) and silk fibroin (SF) was prepared in a one-step process. Thermal stability, combustion characteristics and compression properties of modified RPUFs were investigated by thermogravimetric analysis, cone test, limiting oxygen index (LOI) test, UL-94 vertical burning test and mechanical compression test. The RPUF with 10 wt% EG (RPUF-SF/EG10) exhibited superior heat resistance, with the highest initial decomposition temperature (Ti), integral programmed decomposition temperatures (IPDT) and activation energy (E). And RPUF-SF/EG10 had the lowest peak heat release rate (PHRR) and total heat release (THR), and it also showed the highest LOI and had a flammability rating of V-0. In Addition, the apparent density and compressive strength of RPUF-SF/EG10 were the largest among the four EG-added materials. The results indicated that RPUF-SF/EG10 had excellent thermal stability, flame retardancy and compression resistance, which was attributed to the synergistic effect of SF and EG in the system. This provided a valuable reference for the development of new, environmentally friendly and high-performance RPUFs. |
| format | Article |
| id | doaj-art-a2025cff4c9a415c8f9be8df152d387a |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-a2025cff4c9a415c8f9be8df152d387a2024-12-07T08:26:28ZengElsevierCase Studies in Thermal Engineering2214-157X2024-12-0164105418Enhanced thermal and mechanical properties of flame-retardant expandable graphite modified silk fibroin-based rigid polyurethane foamXu Zhang0Qihong Guan1Qikai Xiao2Zhi Wang3Hua Xie4Liaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology, Shenyang Aerospace University, Shenyang, 110136, China; School of Safety Engineering, Shenyang Aerospace University, Shenyang, 110136, China; Corresponding author. Liaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology, Shenyang Aerospace University, Shenyang, 110136, China.Liaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology, Shenyang Aerospace University, Shenyang, 110136, China; School of Safety Engineering, Shenyang Aerospace University, Shenyang, 110136, ChinaLiaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology, Shenyang Aerospace University, Shenyang, 110136, China; School of Safety Engineering, Shenyang Aerospace University, Shenyang, 110136, ChinaLiaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology, Shenyang Aerospace University, Shenyang, 110136, China; School of Safety Engineering, Shenyang Aerospace University, Shenyang, 110136, ChinaLiaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology, Shenyang Aerospace University, Shenyang, 110136, China; School of Safety Engineering, Shenyang Aerospace University, Shenyang, 110136, ChinaAt present, in order to reduce the environmental pollution caused by the use of petrochemical products, the preparation of flame-retardant polyurethane foam (PUF) using green raw materials is increasingly attracting widespread attention. A biomass protein-based green flame-retardant rigid PUF (RPUF) with expandable graphite (EG) and silk fibroin (SF) was prepared in a one-step process. Thermal stability, combustion characteristics and compression properties of modified RPUFs were investigated by thermogravimetric analysis, cone test, limiting oxygen index (LOI) test, UL-94 vertical burning test and mechanical compression test. The RPUF with 10 wt% EG (RPUF-SF/EG10) exhibited superior heat resistance, with the highest initial decomposition temperature (Ti), integral programmed decomposition temperatures (IPDT) and activation energy (E). And RPUF-SF/EG10 had the lowest peak heat release rate (PHRR) and total heat release (THR), and it also showed the highest LOI and had a flammability rating of V-0. In Addition, the apparent density and compressive strength of RPUF-SF/EG10 were the largest among the four EG-added materials. The results indicated that RPUF-SF/EG10 had excellent thermal stability, flame retardancy and compression resistance, which was attributed to the synergistic effect of SF and EG in the system. This provided a valuable reference for the development of new, environmentally friendly and high-performance RPUFs.http://www.sciencedirect.com/science/article/pii/S2214157X24014497Rigid polyurethane foamSilk fibroinExpandable graphiteThermal stabilityFlame retardancyMechanical properties |
| spellingShingle | Xu Zhang Qihong Guan Qikai Xiao Zhi Wang Hua Xie Enhanced thermal and mechanical properties of flame-retardant expandable graphite modified silk fibroin-based rigid polyurethane foam Case Studies in Thermal Engineering Rigid polyurethane foam Silk fibroin Expandable graphite Thermal stability Flame retardancy Mechanical properties |
| title | Enhanced thermal and mechanical properties of flame-retardant expandable graphite modified silk fibroin-based rigid polyurethane foam |
| title_full | Enhanced thermal and mechanical properties of flame-retardant expandable graphite modified silk fibroin-based rigid polyurethane foam |
| title_fullStr | Enhanced thermal and mechanical properties of flame-retardant expandable graphite modified silk fibroin-based rigid polyurethane foam |
| title_full_unstemmed | Enhanced thermal and mechanical properties of flame-retardant expandable graphite modified silk fibroin-based rigid polyurethane foam |
| title_short | Enhanced thermal and mechanical properties of flame-retardant expandable graphite modified silk fibroin-based rigid polyurethane foam |
| title_sort | enhanced thermal and mechanical properties of flame retardant expandable graphite modified silk fibroin based rigid polyurethane foam |
| topic | Rigid polyurethane foam Silk fibroin Expandable graphite Thermal stability Flame retardancy Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24014497 |
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