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1
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Zuo C, Liu Y, Guo Y, Tan W, Ren Y, Liu X. Preparation of a copper porphyrin derivative and its surface modification for simultaneously endowing PET fibers with dyeing, flame retardant and anti-dripping performance. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2023.110273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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2
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Zhang A, Wang W, Dong Z, Wei J, Wei L, Gu W, Zheng G, Wang R. Mechanical, Thermal Stability, and Flame Retarding Properties of Phosphorus-Modified PET Blended with DOPO-POSS. ACS OMEGA 2022; 7:46277-46287. [PMID: 36570273 PMCID: PMC9773934 DOI: 10.1021/acsomega.2c04628] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/20/2022] [Indexed: 06/17/2023]
Abstract
In this study, an antidroplet flame retardant system based on FRPET (phosphorus-containing copolyester) is constructed with DOPO-POSS (polyhedral oligomeric silsesquioxane containing DOPO) as an additive flame retardant. It is demonstrated that DOPO-POSS has good dispersibility at a lower amount. When the amount of DOPO-POSS is 9 wt %, the residual char of DOPO-POSS/FRPET at 700 °C increases to 23.56 from 18.16% of FRPET, and the maximum thermal weight loss rate also reduces. What is more is that the limiting oxygen index increases to 33 from 26% of FRPET. The flame burning time is shortened to 4.95 from 20.8 s, the phenomenon of self-extinguishing of the fire occurs, and the vertical combustion level is increased from V-2 to V-0. Compared with FRPET, the peak of the heat release rate decreases by 66.0%, the total heat release decreases by 32.4%, the flame retardancy index (FRI) reaches an excellent value, and the condensed-phase products significantly improve. The Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy-energy dispersive X-ray spectrometry (SEM-EDX), thermogravimetric-FTIR (TG-FTIR), and pyrolysis-gas chromatograph/mass spectrometry (Py-GC/MS) results indicate that DOPO-POSS contributes to the formation of char layers and decomposes to generate free radicals with a quenching effect. In a word, DOPO-POSS is an effective radical trapper and charring agent for PET and exerts a flame retardancy effect in gaseous and condensed phases simultaneously.
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Affiliation(s)
- Anying Zhang
- School
of Material Science and Engineering, Tiangong
University, No. 399 BinShuiXi Road, Xiqing District, Tianjin 300387, China
- School
of Materials Design and Engineering, Beijing
Institute of Fashion Technology, No. A2, East Yinghua Street, Chaoyang
District, Beijing 100029, China
| | - Wenhui Wang
- School
of Materials Design and Engineering, Beijing
Institute of Fashion Technology, No. A2, East Yinghua Street, Chaoyang
District, Beijing 100029, China
| | - Zhenfeng Dong
- School
of Materials Design and Engineering, Beijing
Institute of Fashion Technology, No. A2, East Yinghua Street, Chaoyang
District, Beijing 100029, China
| | - Jianfei Wei
- School
of Materials Design and Engineering, Beijing
Institute of Fashion Technology, No. A2, East Yinghua Street, Chaoyang
District, Beijing 100029, China
| | - Lifei Wei
- Shanghai
Different Advanced Material Company Limited, No.58 Jian a Road, Xingta Industrial Zone, Fengjing, Jinshan District, Shanghai 201502, China
| | - Weiwen Gu
- School
of Materials Design and Engineering, Beijing
Institute of Fashion Technology, No. A2, East Yinghua Street, Chaoyang
District, Beijing 100029, China
| | - Guo Zheng
- School
of Material Science and Engineering, Tiangong
University, No. 399 BinShuiXi Road, Xiqing District, Tianjin 300387, China
| | - Rui Wang
- School
of Materials Design and Engineering, Beijing
Institute of Fashion Technology, No. A2, East Yinghua Street, Chaoyang
District, Beijing 100029, China
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3
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Sun H, Zhu Y, Xu H, Zhong Y, Zhang L, Ma Y, Sui X, Wang B, Feng X, Mao Z. Fire retardant polyethylene terephthalate containing 4,4′-(hexafluoroisopropylidene)diphenol-substituted cyclotriphosphazene microspheres. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221145881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Polyphosphazene derivatives are gaining popularity due to their eco-friendly character and high content of flame-retardant components. Herein, a polyphosphazene derivative (PZAF) microsphere was successfully synthesized utilizing an in-situ template approach, which was then employed as an additive flame retardant in polyethylene terephthalate (PET) to improve the fire safety. Thermogravimetric analysis revealed that PZAF promoted the pyrolysis of PET in advance to generate a stable char layer that protects the matrix from heat, consequently increasing char residues. With addition of 10 wt% PZAF, the PET nanocomposites obtained a V-0 grade in vertical combustion test and its LOI value increased from 24.2 vol% to 32.1 vol%. Moreover, the peak heat release and carbon monoxide production decreased by 46.6% and 50.6%, respectively. This was because the phosphonic acid fragments and pyridine ring compounds produced by the PZAF pyrolysis encouraged the development of a robust char layer. Meanwhile, the •PO radicals generated by the pyrolysis of PZAF could capture free radicals in the gas phase, ultimately ending the chain reaction of combustion. Also, mechanical properties of the PET nanocomposites were noticeably enhanced by the addition of 3 or 5 wt% PZAF.
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Affiliation(s)
- Haijian Sun
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
| | - Yuanzhao Zhu
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
| | - Hong Xu
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
- National Innovation Center of Advanced Dyeing & Finishing Technology, Shandong Zhongkang Guochuang Research Institute of Advanced Dyeing & Finishing Technology Co., Ltd., Taian City, China
| | - Yi Zhong
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Linping Zhang
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Yimeng Ma
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Bijia Wang
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Xueling Feng
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering,Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Zhiping Mao
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
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4
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Highly Flame-Retardant and Low Heat/Smoke-Release Wood Materials: Fabrication and Properties. Polymers (Basel) 2022; 14:polym14193944. [PMID: 36235893 PMCID: PMC9571555 DOI: 10.3390/polym14193944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/02/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Wood is an important renewable material exhibiting excellent physical and mechanical properties, environmental friendliness, and sustainability, and has been widely applied in daily life. However, its inherent flammability and susceptibility to fungal attack greatly limit its application in many areas. Use of fire-retardant coatings and preservatives has endowed wood with improved safety performance; importantly, the cooperative effect of dual treatments on the burning behavior and flame retardancy of wood needs to be better understood. Here, a two-step treatment for wood is proposed, with a copper–boron preservative (CBP) and a fire-retardant coating. The thermal degradation and burning behavior of treated wood were investigated. The CBP formed a physical barrier on the wood surface, facilitating a charring process at high temperatures and thus suppressing the release of heat and smoke. Notably, the dual-treated wood exhibited lower heat release and reduced smoke emission compared with the mono-treated wood, indicating a cooperative effect between CBP and fire-retardant coatings, beneficial to the improvement of fire safety. This experimental work improved fire retardance and suppressed smoke release in flammable materials, and offers a new design for developing fire-retardant coatings.
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5
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Zhu Y, Wu W, Xu T, Xu H, Zhong Y, Zhang L, Ma Y, Sui X, Wang B, Feng X, Mao Z. Morphology-Controlled Synthesis of Polyphosphazene-Based Micro- and Nano-Materials and Their Application as Flame Retardants. Polymers (Basel) 2022; 14:2072. [PMID: 35631953 PMCID: PMC9144817 DOI: 10.3390/polym14102072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 04/22/2022] [Accepted: 04/29/2022] [Indexed: 11/16/2022] Open
Abstract
Common flame retardants, such as halogen-based materials, are being phased-out owing to their harmful environmental and health effects. We prepared poly-(cyclotriphosphazene-co-4,4'-sulfonyldiphenol) (PZS) microspheres, nanotubes, capsicum-like nanotubes, and branched nanotubes as flame retardants. An increase in reaction temperature changed the morphology from nanotubes to microspheres. A PZS shape had a positive effect on the flame retardancy of polyethylene terephthalate (PET). The PZS with a capsicum-like nanotube morphology had the best flame retardancy, and the PET limiting oxygen index increased from 25.2% to 34.4%. The flame retardancy capability was followed by PZS microspheres (33.1%), branched nanotubes (32.8%), and nanotubes (32.5%). The capsicum-like nanotubes promote the formation of highly dense and continuous carbon layers, and they release a non-combustible gas (CO2). This study confirms polyphosphazene-based flame retardants as viable and environmentally-friendly alternatives to common flame retardants. It also presents a novel and facile design and synthesis of morphology-controlled nanomaterials with enhanced flame retardant properties.
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Affiliation(s)
- Yuanzhao Zhu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Wei Wu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Tong Xu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Hong Xu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Yi Zhong
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Linping Zhang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Yimeng Ma
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Xiaofeng Sui
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Bijia Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Xueling Feng
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Zhiping Mao
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; (Y.Z.); (W.W.); (T.X.); (H.X.); (Y.Z.); (L.Z.); (Y.M.); (X.S.); (B.W.); (X.F.)
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
- National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai 201620, China
- National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Donghua University, Shanghai 201620, China
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6
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Zhu Y, Wu W, Xu T, Xu H, Zhong Y, Zhang L, Ma Y, Sui X, Wang B, Feng X, Mao Z. Effect of weak intermolecular interactions in micro/nanoscale polyphosphazenes and polyethylene terephthalate composites on flame retardancy. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuanzhao Zhu
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Wei Wu
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Tong Xu
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Hong Xu
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Yi Zhong
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Linping Zhang
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Yimeng Ma
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Bijia Wang
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Xueling Feng
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
| | - Zhiping Mao
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- Innovation Center for Textile Science and Technology of DHU Donghua University Shanghai China
- National Engineering Research Center for Dyeing and Finishing of Textiles Donghua University Shanghai China
- National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology Donghua University Shanghai China
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7
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Li B, Zhu Y, Wang X, Xu H, Zhong Y, Zhang L, Ma Y, Sui X, Wang B, Feng X, Mao Z. Synthesis and application of poly (cyclotriphosphazene‐resveratrol) microspheres for enhancing flame retardancy of poly (ethylene terephthalate). POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Baojie Li
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Yuanzhao Zhu
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Xuan Wang
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Hong Xu
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Yi Zhong
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Linping Zhang
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Yimeng Ma
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Bijia Wang
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Xueling Feng
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
| | - Zhiping Mao
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai China
- National Engineering Research Center for Dyeing and Finishing of Textiles Donghua University Shanghai China
- National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology Donghua University Shanghai China
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8
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Polyphosphazene microspheres modified with transition metal hydroxystannate for enhancing the flame retardancy of polyethylene terephthalate. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4873] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Li L, Shao X, Zhao Z, Liu X, Jiang L, Huang K, Zhao S. Synergistic Fire Hazard Effect of a Multifunctional Flame Retardant in Building Insulation Expandable Polystyrene through a Simple Surface-Coating Method. ACS OMEGA 2020; 5:799-807. [PMID: 31956831 PMCID: PMC6964526 DOI: 10.1021/acsomega.9b03541] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
This work reports a strategy based on γ-aminopropyltriethoxysilane (KH550) and graphene oxide (GO)-functionalized 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) to fabricate P-N-Si integrated flame retardant [KDOPO-modified GO (DGO)] through mild Mannich and Silanization reactions to overcome the challenge of single gas-phase fire retardancy of DOPO. DGO-based phenolic epoxy resin (DGO/PER) is manufactured and coated on the surface of expandable polystyrene (EPS) foam plates to achieve fire safety, which is used as the thermally insulating external wall in buildings and constructions. The DGO/PER paintcoat imparts high fire safety to the EPS foam plate, exhibiting a high limiting oxygen index value of 29%, and a UL-94 V-0 classification is achieved with only 300 μm of layer thickness compared with the DOPO/PER paintcoat. Meanwhile, all combustion parameters such as peak heat release rate, heat release rate, total heat release, smoke release rate, total smoke rate, and ignition time present excellent promotions for EPS@DGO compared with EPS@DOPO. These dramatically reduced fire hazards are mainly attributed to the synergistic effects of DGO. Meanwhile, the DGO/PER flame-retardant paintcoat cannot deteriorate the thermal insulation performance of the EPS foam plate.
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Affiliation(s)
| | | | - Zheng Zhao
- Key Lab of Rubber-plastics, Ministry
of Education/Shandong Provincial Key Lab of Rubber-plastics, School
of Polymer Science and Engineering, Qingdao
University of Science and Technology, Qingdao 266042, China
| | - Xiaolin Liu
- Key Lab of Rubber-plastics, Ministry
of Education/Shandong Provincial Key Lab of Rubber-plastics, School
of Polymer Science and Engineering, Qingdao
University of Science and Technology, Qingdao 266042, China
| | - Licong Jiang
- Key Lab of Rubber-plastics, Ministry
of Education/Shandong Provincial Key Lab of Rubber-plastics, School
of Polymer Science and Engineering, Qingdao
University of Science and Technology, Qingdao 266042, China
| | - Kai Huang
- Key Lab of Rubber-plastics, Ministry
of Education/Shandong Provincial Key Lab of Rubber-plastics, School
of Polymer Science and Engineering, Qingdao
University of Science and Technology, Qingdao 266042, China
| | - Shuai Zhao
- Key Lab of Rubber-plastics, Ministry
of Education/Shandong Provincial Key Lab of Rubber-plastics, School
of Polymer Science and Engineering, Qingdao
University of Science and Technology, Qingdao 266042, China
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10
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Liu Z, Li J, Zhao X, Li Z, Li Q. Surface Coating for Flame Retardancy and Pyrolysis Behavior of Polyester Fabric Based on Calcium Alginate Nanocomposites. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E875. [PMID: 30366406 PMCID: PMC6267167 DOI: 10.3390/nano8110875] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/06/2018] [Accepted: 10/24/2018] [Indexed: 12/11/2022]
Abstract
A polyester fabric, coated with calcium alginate and nano-calcium borate composites (CAB-PL), was fabricated by a post-cross-linking method, with remarkable improvement of flame retardancy and thermal stability, as compared with the original polyester fabric (PL). The mechanical properties of CAB-PL and PL were studied, and characterizations and tests including Fourier transform infrared spectrum (FTIR), scanning electron microscopy (SEM), limiting oxygen index (LOI), cone calorimetry (CONE) and thermogravimetric analysis (TGA) were employed to evaluate the flame retardancy and thermostability. The test results of CAB-PL showed excellent mechanical strength and anti-dripping properties. In comparison with PL, TGA results indicate that the presence of surface-coated composites produced more char residue and can effectively inhibit the heat transmission, and the LOI value of CAB-PL was improved from 25 to 33. Moreover, CONE results show that 88.65% reduction of total smoke release (TSR) values was induced by the presence of CAB. In addition, the possible pyrolysis mechanisms for CAB-PL have been proposed based on the results of pyrolysis-gas chromatography⁻mass spectrometry (Py-GC-MS) analysis. The combined results can provide useful information for understanding the flame retardant mechanisms of alginates as well. In summary, polyester fabric was upgraded by coating it with the calcium alginate/nano-calcium borate, thus achieving extraordinary flame retardancy and thermal stability for various applications within the textile industry.
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Affiliation(s)
- Zhenhui Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Jiao Li
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Xihui Zhao
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Zichao Li
- College of Life Sciences, Qingdao University, Qingdao 266071, China.
| | - Qun Li
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
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