Article
Construction & Building Technology
Wenqing Yang, Wanyi Zhang, Dong Xie, Yi Wang, Xiaoyan Sun, Ru Zhou, Juncheng Jiang
Summary: A novel composite based on DICY and AHP was integrated into PE, showing improved flame retardant properties compared to pure PE. The UL-94 flame retardant grade reached V-0 and the LOI index increased from 18.8% to 26.3% when the ratio of AHP and DICY was 4:1. The carbon residue and heat release rate were also improved in the composite.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Polymer Science
Yongyin Cui, Zhengshuai Xu, Yongxu Li, Xiurui Lang, Chengzhong Zong, Lan Cao
Summary: A method of mixing soft segments was used to solve the thermodynamic incompatibility problem and successfully synthesize silicone-modified thermoplastic polyurethane with excellent microstructure and macroscopic properties, such as increased elongation at break, improved hydrophobicity, and good flame retardancy.
Article
Polymer Science
Baoli Huang, Meng Ma, Yueyin Wang, Si Chen, Yanqin Shi, Huiwen He, Xu Wang
Summary: Rational design of the morphology of flame retardants is crucial for balancing flame retardancy and mechanical properties. This study successfully obtained aluminum diethylphosphinate (ADP) with different morphologies, and applied them to modify thermoplastic polyurethane (TPU). The results showed that the morphology of the flame retardant influenced the flame retardancy, mechanical properties, and thermal stability of the TPU composites.
JOURNAL OF POLYMER RESEARCH
(2023)
Article
Polymer Science
Kexin Chen, Dong Yang, Yongqian Shi, Yuezhan Feng, Libi Fu, Chuan Liu, Ming Chen, Fuqiang Yang
Summary: The design of high-performance compounded flame retardants based on multielement is crucial for reducing the flammability of polymer materials. The introduction of a new N-P-Cu containing supermolecular assembly network (MPCSN) flame retardant into TPU/SiAPP composites significantly improved their thermal and flame retardant performances. The synergistic effect of SiAPP and MPCSN resulted in strong flame suppression and reduced FIGRA and Av-EHC values.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Polymer Science
Yadong Yang, Guangyi Zhang, Feng Yu, Mengru Liu, Sujie Yang, Gang Tang, Xiangrong Xu, Bibo Wang, Xiuyu Liu
Summary: By introducing ITs and AHP to prepare FR-RPUF composites, the thermal stability and flame retardancy of the composites can be improved. This can reduce toxic smoke release and enhance fire safety of the composites.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Polymer Science
Jiajie Yang, Xiaohong Chen, Honglei Zhou, Weichun Guo, Jian Zhang, Zhen Miao, Daihua He
Summary: By compounding expandable graphite and aluminum hypophosphite, flame-retardant ethylene vinyl acetate (EVA) composites were prepared with enhanced combustion performance. Thermogravimetric analysis results showed that AHP and EG promoted the carbonization of EVA to form the char layer, increasing LOI value and the probability to pass UL-94 V-0 rating.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Thermodynamics
Xinjie Huang, Chunjie Wang, Jinda Gao, Zhijie Zhou, Gang Tang, Changlong Wang
Summary: The study revealed that adding flame retardants to rigid polyurethane foam can limit flame combustion intensity, with different retardants affecting combustion mechanisms differently. Expanded graphite has a significant impact on bending deformation, while aluminum hypophosphite and aluminum diethylhypophosphite show good retardancy in terms of delaying fire and reducing flame height.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Chuanmei Jiao, Yanli Zhang, Shaoxiang Li, Xilei Chen
Summary: This study found that 1-aminoethyl-3-methylimidazolium hexafluorophosphate ([APMIm]PF6) as a flame retardant additive can significantly improve the flame retardancy of thermoplastic polyurethane elastomer (TPU), reducing heat release rate, smoke density, and promoting the formation of a protective carbon layer.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Wei Liu, Yaxuan Wang, Jinyong Ren, Yaofei Wang, Mingxin Li, Chuanmei Jiao, Xilei Chen
Summary: The combination of CS and PWA in reducing the fire hazard of TPU showed promising results by effectively reducing the heat release rate, smoke production, and increasing the LOI value.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Polymer Science
Yongyin Cui, Hongwei Pan, Zhengshuai Xu, Yongxu Li, Lan Cao
Summary: A flame retardant thermoplastic polyurethane (TPU) was prepared by combining a silicon based (Si)-intumescent (IFR) synergistic flame-retardant system, which showed improved toughness and achieved a V-0 flame retardant level. The introduction of silicone rubber into the TPU matrix through dynamic vulcanization enabled the combination of silicon based material and TPU, while the IFR system supplemented the defects of single Si based flame retardancy.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Thermodynamics
Quan Hu, Liyong Zou, Zhihong Liu, Jia Chen, Jiyan Liu, Xueqing Liu
Summary: Aluminum monomethylphosphinate (MeP-Al) enhances the flame retardancy and anti-dripping property of polyurethane (PU), reducing heat release and organic volatile compounds during combustion. The efficient action of MeP-Al in both gas and condensed phase contributes to the improved flame retardant performance of PU.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Wen-Juan Hu, Ying-Ming Li, Yi-Ran Li, De-Yi Wang
Summary: The study demonstrated that DA-APP as a flame retardant for TPU significantly improved the flame retardancy of TPU composites, reducing the risk of fire and decreasing smoke and heat release. The key mechanism for this enhancement was the promotion of TPU to produce water and carbon dioxide by DA-APP, diluting the oxygen concentration, and the formation of a dense carbon layer isolating heat and oxygen.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Polymer Science
Qinyong Liu, Huawei Wang, Hefu Li, Jun Sun, Xiaoyu Gu, Sheng Zhang
Summary: A novel flame retardant ZIF-67@GO was developed to enhance the flame retardancy and smoke suppression of thermoplastic polyurethane (TPU). The presence of this flame retardant significantly improved the flame retardancy of TPU, with increased limit oxygen index (LOI) and reduced heat release rate and smoke production rate. The flame-retardant TPU also exhibited satisfactory mechanical properties for industrial applications.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Fouad Laoutid, Maryam Jouyandeh, Oltea Murariu, Henri Vahabi, Mohammad Reza Saeb, Loic Brison, Marius Murariu, Philippe Dubois
Summary: This study investigated the flame-retardant effect of transparent epoxy coating with aluminum hypophosphite nanoparticles on polylactic acid sheets. The addition of these nanoparticles into the epoxy resin accelerated the degradation of the coating, resulting in increased char residue. The presence of the nanoparticles reduced the peak heat release rate significantly, leading to the formation of a homogeneous char layer with a 15 wt.% nanoparticle content. However, further increase in content did not enhance the flame-retardant properties due to the formation of structural cracks in the coating.
Article
Materials Science, Multidisciplinary
Zeng Lijuan, Yang Liu, Ai Lianghui, Ye Zhibin, Liu Ping
Summary: The flame-retardant properties of polyurethane containing ammonium polyphosphate and aluminum hydroxide were investigated, and it was found that the addition of these compounds improved the thermal stability and flame-retardant performance. The addition of ammonium polyphosphate and aluminum hydroxide reduced the peak heat release rate and combustion heat, and exerted both condensed phase and gas phase flame retardant effects.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
(2022)
Article
Engineering, Environmental
Junxiu Piao, Mingjie Lu, Jinyong Ren, Yaofei Wang, Tingting Feng, Yaxuan Wang, Chuanmei Jiao, Xilei Chen, Shaoping Kuang
Summary: Frequent petrochemical spill accidents and secondary fire hazards pose threats to the ecological environment and environmental safety. This study demonstrates a bio-mimetic structure-based flame-retardant polyurethane sponge for continuous oil-water separation. The sponge has excellent superhydrophobic/superoleophilic performance and can easily and quickly adsorb oily liquids suspended/settled in the water. It also shows high absorption capacity and separation efficiency, providing a new design strategy for high-performance oil-water separation sponges.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Polymer Science
Yaofei Wang, Junxiu Piao, Jinyong Ren, Tingting Feng, Yaxuan Wang, Wei Liu, Huixin Dong, Wenjiao Chen, Chuanmei Jiao, Xilei Chen
Summary: A hydrophobic rare earth-based aluminum hypophosphite (AHP) was prepared using rare earth aluminate coupling agent (REA) and exhibited excellent flame retardant performance for epoxy resin. The modified AHP significantly improved the flame retardancy of EP/6RaAHP-2 and EP/6RaAHP-4 composites, reducing the peak heat release rate (PHRR) and total heat release (THR) values. The char residue layer formed by the modified AHP acted as a valuable barrier for heat and mass transfer during combustion.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Engineering, Environmental
Jinyong Ren, Yaxuan Wang, Junxiu Piao, Mingyu Ou, Richeng Lian, Jiahui Cui, Haocun Guan, Lei Liu, Chuanmei Jiao, Xilei Chen
Summary: Due to the increasing consumption of petroleum resources and the need for environmental protection, the exploitation and utilization of biological resources have reached new heights. A new organic-inorganic hybrid system, TOSP@PAA, was developed using mechanochemical strategies for flame-retardant EP. TOSP@PAA exhibited a specific layer crosslinking structure and excellent self-charring and heat insulation properties. EP with TOSP@PAA showed significant improvements in fire safety and mechanical properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Mingyu Ou, Richeng Lian, Rongjia Li, Jiahui Cui, Haocun Guan, Jianhao Zhu, Lei Liu, Chuanmei Jiao, Xilei Chen
Summary: In this study, a phosphaphenanthrene-based flame retardant (FNP) was synthesized and used as a co-curing agent to fabricate EP composites with excellent fire safety and mechanical properties. The composites achieved a UL-94 V-0 rating and a limiting oxygen index of 31%. Furthermore, the FNP reduced the heat release rate, smoke release, and increased the flexural strength and glass transition temperature of the composites.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Polymer Science
Xilei Chen, Junxiu Piao, Huixin Dong, Mingyu Ou, Richeng Lian, Haocun Guan, Jiahui Cui, Chuanmei Jiao
Summary: Two kinds of polyaniline coupled graphitized carbon nitride nanosheets doped with different organic phosphoric acids (CP@PA, with phytic acid; CP@NP, with amino trimethyl phosphonic acid) are developed by in-situ polymerization. They show different morphologies but can enhance the dispersion of graphitized carbon nitride nanosheets in epoxy resin (EP). The different oxidation states of phosphorus in CP@PA and CP@NP lead to varying effects on the fire safety of EP. CP@NP is better than CP@PA in flame retardancy, while CP@PA is most effective as a synergist of intumescent flame retardants (IFR) in improving the comprehensive fire safety property of EP.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Materials Science, Composites
Tingting Feng, Jiahui Cui, Mingyu Ou, Rongjia Li, Zexuan Zhao, Yiwei Geng, Xilei Chen, Chuanmei Jiao
Summary: 0D-2D nanohybrids (BN@CoFeOx) were obtained through a facile coprecipitation-thermal oxidation method, and then used to prepare EP/BN@CoFeOx nanocomposites. The nanohybrids showed homogeneous dispersion in EP and strong interfacial interactions with the EP matrix. The addition of BN@CoFeOx nanohybrids significantly improved the flame-retardant efficiency and smoke suppression properties of EP, as well as enhanced its thermal stability and thermal conductivity.
COMPOSITES COMMUNICATIONS
(2023)
Article
Construction & Building Technology
Richeng Lian, Mingyu Ou, Haocun Guan, Jiahui Cui, Zexuan Zhao, Lei Liu, Xilei Chen, Chuanmei Jiao
Summary: In this study, Cu(II) and Co(II) complexes decorated ammonium polyphosphates (BAPP@Cu and BAPP@Co) were synthesized as multifunctional additives for enhancing various properties of epoxy coatings. Both BAPP@Cu and BAPP@Co improved the curing reaction and interfacial compatibility of epoxy resin, resulting in enhanced mechanical performance and heat insulation. Moreover, they significantly reduced the peak heat release rate and peak CO production rate, providing excellent fire safety to the epoxy coatings.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Thermodynamics
Richeng Lian, Mingyu Ou, Haocun Guan, Jiahui Cui, Junxiu Piao, Tingting Feng, Jinyong Ren, Yaxuan Wang, Yaofei Wang, Lei Liu, Xilei Chen, Chuanmei Jiao
Summary: By chemically modifying RPUF with APP@Abz, a multifunctional RPUF material with excellent mechanical properties, flame retardancy, and thermal insulation has been successfully fabricated. This study is of great importance for the development and application of building insulation materials.
Article
Engineering, Environmental
Haocun Guan, Rongjia Li, Richeng Lian, Jiahui Cui, Mingyu Ou, Lei Liu, Xilei Chen, Chuanmei Jiao, Shaoping Kuang
Summary: Due to frequent petrochemical spills, the authors developed a superhydrophobic melamine sponge using interfacial assembly techniques inspired by the water-repellent skin of springtails. This material showed improved durability, enhanced photo-thermal performance, and reduced fire risk, offering efficient and sustainable practical value for petrochemical spill treatment. The results demonstrated excellent super-hydrophobicity and oil absorption capacity, maintaining high durability even after multiple cycles of absorption-squeezing.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Applied
Mingyu Ou, Richeng Lian, Jianhao Zhu, Rongjia Li, Jiahui Cui, Haocun Guan, Lei Liu, Chuanmei Jiao, Xilei Chen
Summary: A novel aromatic phosphorus/nitrogen/cobalt-containing microsphere flame retardant (FNP-Co) was synthesized and used to fabricate high-performance epoxy resin (EP) coatings. EP coatings containing FNP-Co exhibited remarkable fire safety performance, enhanced mechanical properties, and lower curing temperature. The FNP-Co promoted the formation of a honeycomb-like and compact char layer during combustion, providing a labyrinth effect and barrier effect to inhibit heat and pyrolysis gas transfer.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Applied
Mingyu Ou, Jiahui Cui, Zongqiang Zhao, Rongjia Li, Haocun Guan, Lei Liu, Chuanmei Jiao, Xilei Chen
Summary: This study focuses on the development of solvent-free intumescent fire protection epoxy coatings with enhanced properties using a micro/nano-structured phosphorus/nitrogen/silicon-containing flame retardant. The synthesized flame retardant (APP@Si) improves the fire protection, smoke suppression, toxicity reduction, mechanical properties, and durability of the coatings. Additionally, the use of APP@Si also enhances the water resistance and strength of the coatings.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Multidisciplinary
Mingyu Ou, Richeng Lian, Rongjia Li, Jiahui Cui, Haocun Guan, Lei Liu, Chuanmei Jiao, Xilei Chen
Summary: A highly efficient hyperbranched polyphosphoramide flame retardant (DMP) was synthesized using a catalyst-free and solvent-free strategy, and it was utilized as a cocuring agent to fabricate high-performance epoxy resin composites. These composites exhibited excellent fire safety performance, enhanced mechanical strength, and toughness, making them suitable for various applications.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Applied
Dan Zhang, Yue Shi, Xilei Chen, Jianping Lai, Bolong Huang, Lei Wang
Summary: This study successfully prepared IrPdRhMoW HEA metallene catalyst, which exhibits extraordinary catalytic performance in acidic environments. It outperforms commercial catalysts and other noble metal-based catalysts in terms of hydrogen and oxygen evolution overpotentials. Moreover, it maintains excellent electroactivity and structural stability after prolonged water splitting.
CHINESE JOURNAL OF CATALYSIS
(2023)
Article
Engineering, Multidisciplinary
Richeng Lian, Qingyao Gao, Zexuan Zhao, Mingyu Ou, Xinliang Liu, Lei Liu, Xilei Chen, Chuanmei Jiao
Summary: This study developed MXene-based nanocomposites with improved mechanical properties by modifying the surface of MXene nanosheets with Prussian blue analogues (PBAs). The hierarchical MXene@PBA exhibited excellent dispersion performance in the epoxy matrix and resulted in high-efficiency flame retardancy and smoke suppression at ultra-low additions. The nanohybrids also enhanced the flexural and impact strengths of the epoxy nanocomposites.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Applied
Richeng Lian, Yihao Jiang, Yaqin Zhang, Qingyao Gao, Haocun Guan, Lei Liu, Xilei Chen, Chuanmei Jiao
Summary: Developing bio-based intumescent flame-retardant (IFR) epoxy coatings for fire protection of steel has become a research hotspot. In this study, a bio-based IFR hybrid with the maize structure (PAbz@PBA) was constructed and employed to prepare high-performance IFR epoxy coatings. The results showed that the epoxy coating containing 5.0 wt% PAbz@PBA exhibited improved fire protection, smoke suppression, toxic gas suppression, heat insulation, flexural strength, and impact strength compared to the virgin epoxy coating.
PROGRESS IN ORGANIC COATINGS
(2023)
