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Hong X, Zheng Y, Shi Y, Zheng W, Lin F, Xiong L. A facile strategy for constructing lightweight, fire safety and compression resistance poly(vinylalcohol) aerogels with highly-efficient expansible graphene oxide/layered double hydroxides hybrid synergistic flame retardant. J Colloid Interface Sci 2023; 650:686-700. [PMID: 37441962 DOI: 10.1016/j.jcis.2023.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/29/2023] [Accepted: 07/06/2023] [Indexed: 07/15/2023]
Abstract
Poly(vinyl alcohol) (PVA) aerogels with excellent environmentally friendly properties have been considered to replace undegradable polymer foams. However, due to highly flammable, hydrophilic, and worse compression resistance performance, PVA aerogels have always been excluded from practical. Herein, a fire safety and compression resistance PVA/expansible graphene oxide (EGO)/Layered double hydroxides (LDHs) (PGL) aerogel was prepared via the freeze-drying method and electrostatic adsorption of flame retardant. The ice crystals from aerogels were sublimated and left a mass of tree-like pore tunnel structures. Meantime, the compound of EGO and LDHs rendered PGL aerogels high compressive strength of 6.0917 MPa (at 80% of strains), a high specific modulus of 19.16 m2/s2, and an ultra-low density of 0.059 g/cm3. Especially, the as-prepared PGL aerogels showed heat release reduced by 55.4%, smoke release reduced by 54.3%, and the limiting oxygen index reaching up to 31%. Moreover, LDHs also enhanced the interface with PVA/EGO resulting in hydrophobic performance improvement. The proposed enhancements mechanism suggested that (i) chemical reactions between EGO and PVA matrix; (ii) a mass of negative potential sites from the interface of PVA/EGO composites made LDHs sheets easily adsorbing; (iii) oxygen-containing groups from EGO and LDHs absorbed mass of heat during combustion; (iv) the compact char residues on the surface of aerogels acting as barriers suppressed smoke and prevented PVA matrix from further combustion. Therefore, electrostatic adsorption as a facile production process was paved for meeting the compression resistance, flame-retardant, heat-insulating, and smoke-suppressed requirements of PVA aerogels in this work.
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Affiliation(s)
- Xiansheng Hong
- College of Material Science & Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, PR China
| | - Yuying Zheng
- College of Material Science & Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, PR China; Key Lab New Rubber & Plastic Material, Quanzhou 362211, PR China.
| | - Yongqian Shi
- College of Environmental & Safety Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, PR China.
| | - Weijie Zheng
- College of Material Science & Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, PR China
| | - Fanyi Lin
- College of Material Science & Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, PR China
| | - Liyao Xiong
- College of Material Science & Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, PR China
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Zhao C, Sun Z, Wei J, Li Y, Xiang D, Wu Y, Que Y. A Phosphorous-Containing Bio-Based Furfurylamine Type Benzoxazine and Its Application in Bisphenol-A Type Benzoxazine Resins: Preparation, Thermal Properties and Flammability. Polymers (Basel) 2022; 14:polym14081597. [PMID: 35458347 PMCID: PMC9028360 DOI: 10.3390/polym14081597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 12/03/2022] Open
Abstract
Polybenzoxazine (PBa) composites based on phosphorous-containing bio-based furfurylamine type benzoxazines (D-fu) and bisphenol-A type benzoxazines (Ba) were developed for flame retardation. The structure of D-fu was analyzed by Fourier transform infrared (FTIR) spectroscopy and 1H-NMR spectroscopy. The curing temperature of Ba/D-fu mixtures was systematically studied by differential scanning calorimetry (DSC). Thermogravimetric analysis (TGA) demonstrated the excellent char formation ability of the PBa composites with the addition of phosphorous-containing D-fu. The flame retardancy of the PBa composite materials was tested by the limited oxygen index (LOI), vertical burning test (UL-94) and cone calorimeter (CONE). The LOI and UL-94 level of PBa/PD-fu-5% reached 34 and V0 rate, respectively. Notably, the incorporation of 5% D-fu into PBa led to a decrease of 21.9% at the peak of the heat-release rate and a mass-loss reduction of 8.0%. Moreover, the fire performance index increased, which demonstrated that the introduction of D-fu can diminish fire occurrence. The role of D-fu in the condensed and gas phases for the fire-resistant mechanism of the PBa matrix was supported by SEM-EDS and TGA/infrared spectrometry (TG-FTIR), respectively. Dynamic mechanical analysis (DMA) revealed that the Tg of PBa flame-retardant composites was around 230 °C. Therefore, PBa composites are promising fire-retardant polymers that can be applied as high-performance functional materials.
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Affiliation(s)
- Chunxia Zhao
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China; (Z.S.); (J.W.); (D.X.); (Y.W.); (Y.Q.)
- Correspondence: (C.Z.); (Y.L.)
| | - Zhangmei Sun
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China; (Z.S.); (J.W.); (D.X.); (Y.W.); (Y.Q.)
| | - Jixuan Wei
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China; (Z.S.); (J.W.); (D.X.); (Y.W.); (Y.Q.)
| | - Yuntao Li
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China; (Z.S.); (J.W.); (D.X.); (Y.W.); (Y.Q.)
- State Key Laboratory Oil and Gas Reservoir Geology and Exploitation, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
- Correspondence: (C.Z.); (Y.L.)
| | - Dong Xiang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China; (Z.S.); (J.W.); (D.X.); (Y.W.); (Y.Q.)
| | - Yuanpeng Wu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China; (Z.S.); (J.W.); (D.X.); (Y.W.); (Y.Q.)
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Yusheng Que
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China; (Z.S.); (J.W.); (D.X.); (Y.W.); (Y.Q.)
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Eco-friendly thermally insulating cellulose aerogels with exceptional flame retardancy, mechanical property and thermal stability. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.104159] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Mochane MJ, Mokhothu TH, Mokhena TC. Synthesis, mechanical, and flammability properties of metal hydroxide reinforced polymer composites: A review. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25847] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mokgaotsa J. Mochane
- Department of Life Sciences Central University of Technology Free State Bloemfontein South Africa
| | | | - Teboho Clement Mokhena
- Advanced Materials Division Nanotechnology Innovation Centre (NIC) Randburg South Africa
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Li H, Sun Z, Zhao C, Li Y, Xiang D, Wu Y, Wei J, Que Y. Polybenzoxazine Resins with Cellulose Phosphide: Preparation, Flame Retardancy and Mechanisms. Polymers (Basel) 2021; 13:polym13244288. [PMID: 34960838 PMCID: PMC8706826 DOI: 10.3390/polym13244288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/27/2021] [Accepted: 12/02/2021] [Indexed: 11/18/2022] Open
Abstract
Phosphated cellulose (PCF) was synthesized based on urea, phosphated acid and cellulose. The structure of the PCF was confirmed by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy coupled with the Energy Dispersive Spectrometer (SEM-EDS). Benzoxazine (Ba)/PCF hybrid materials were fabricated and thermally cured to prepare polybenzoxazine composites (PBa/PCF). The effects of PCF on the curing temperature of Ba were analyzed through differential scanning calorimetry (DSC). The thermogravimetric (TGA) results demonstrated an increased char residue of 50% for the PBa composites incorporating PCF-5% compared with the pure PBa. The peak heat release rate (PHRR) and total heat release (THR) values of the PBa/PCF-5% composites clearly decreased by 58.1% and 16.5% compared to those of the pristine PBa. The smoke released from the PBa/PCF system significantly reduced with the loading of PCF. Moreover, the limited oxygen index (LOI) and vertical burning test level (UL-94) of PBa/PCF-5% reached up to 31 and V0. The flame retardant mechanism of the PCF in the PBa matrix was investigated TG-FTIR and char residues analysis. Finally, the dynamical mechanical analysis (DMA) results demonstrated that the Tg of the PBa/PCF composites was approximately 230 °C, which does not affect further applications of PBa composites.
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Affiliation(s)
- Hui Li
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China; (Z.S.); (Y.L.); (D.X.); (Y.W.); (J.W.); (Y.Q.)
- Correspondence: (H.L.); (C.Z.)
| | - Zhangmei Sun
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China; (Z.S.); (Y.L.); (D.X.); (Y.W.); (J.W.); (Y.Q.)
| | - Chunxia Zhao
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China; (Z.S.); (Y.L.); (D.X.); (Y.W.); (J.W.); (Y.Q.)
- Correspondence: (H.L.); (C.Z.)
| | - Yuntao Li
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China; (Z.S.); (Y.L.); (D.X.); (Y.W.); (J.W.); (Y.Q.)
- State Key Laboratory Oil and Gas Reservoir Geology and Exploitation, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China
| | - Dong Xiang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China; (Z.S.); (Y.L.); (D.X.); (Y.W.); (J.W.); (Y.Q.)
| | - Yuanpeng Wu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China; (Z.S.); (Y.L.); (D.X.); (Y.W.); (J.W.); (Y.Q.)
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China
| | - Jixuan Wei
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China; (Z.S.); (Y.L.); (D.X.); (Y.W.); (J.W.); (Y.Q.)
| | - Yusheng Que
- School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan, China; (Z.S.); (Y.L.); (D.X.); (Y.W.); (J.W.); (Y.Q.)
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Pal K, Chowdhury SG, Mondal D, Chattopadhyay D, Bhattacharyya SK, Mukhopadhyay R. Impact of α‐cellulose as a green filler on physico‐mechanical properties of a solution grade styrene‐butadiene rubber based tire‐tread compound. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Koushik Pal
- Hari Shankar Singhania Elastomer and Tire Research Institute Mysore India
| | | | - Dipankar Mondal
- Department of Polymer Science and Technology University of Calcutta Kolkata India
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