Article
Chemistry, Physical
Zhiwen Wang, Yan Jiang, Xiaomei Yang, Junhuan Zhao, Wanlu Fu, Na Wang, De-Yi Wang
Summary: A functionalized APP flame retardant (APP-Cu@PDA) was developed and added to TPU to significantly improve the flame-retardant performance of the composite material, without affecting its mechanical properties.
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, Ceramics
Fanchao Zeng, Yonghuan Zhao, Yang Meng, Juanjuan Su, Jian Han
Summary: In this study, organic-inorganic-modified ammonium polyphosphate (APP) flame retardant was prepared using a sol-gel method and successfully added into polyurethane to enhance its flame retardancy. The results showed that VTSAPP significantly improved the LOI value of PU and reduced the smoke released during combustion.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Polymer Science
X. L. Chen, K. Wang, Y. X. Gu, C. M. Jiao, H. J. Liang, S. X. Li
Summary: The combination of nickel citrate and ammonium polyphosphate improves the flame retardancy of TPU composites and reduces the total heat release.
EXPRESS POLYMER LETTERS
(2021)
Article
Polymer Science
Mengjie Cui, Jing Li, Dianbin Qin, Jiakuan Sun, Yi Chen, Jun Xiang, Jun Yan, Haojun Fan
Summary: A novel triazine-based flame retardant TMPD was synthesized and used as a chain extender to prepare flame retardant waterborne polyurethane (FRWPU); The synergistic flame retardant effects of TMPD and APP were investigated by introducing ammonium polyphosphate (APP) into the FRWPU; Various tests showed that the combination of TMPD and APP can enhance the flame retardancy of the polyurethane and form a more compact and graphitized char layer.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Materials Science, Multidisciplinary
Meina Xie, Jiyu He, Xiangmei Li, Rongjie Yang
Summary: The use of APP-MMT nanocomposite and CFA improved the flame retardancy and mechanical properties of TPU composites, and enhanced their thermal stability.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Materials Science, Paper & Wood
Xu-Chen Jiang, Ping Li, Yun Liu, Jun-Sheng Wang
Summary: A flame-retardant coating was successfully constructed on ramie fabrics using the dip-pad-bake method, resulting in enhanced fire safety properties. The simple preparation process of RF-APPs using only APP provides a feasible solution for flame-retardant natural fibers reinforced composites.
Article
Polymer Science
Shasha Wang, Quan Fang, Chao Liu, Jie Zhang, Yaqiang Jiang, Yi Huang, Man Yang, Zhezhe Tan, Yunlong He, Ben Ji, Congrui Qi, Yue Chen
Summary: Hierarchical ammonium polyphosphate was fabricated by decorating FeOOH nanoparticles onto the APP surface and modifying with polydimethylsiloxane. The introduction of HAPP improved the mechanical properties of TPU composite and achieved a UL-94 V-0 rating with high limiting oxygen index value. Additionally, it significantly reduced the peak heat release rate, total heat release, and total smoke production.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Polymer Science
Sujie Yang, Xinliang Liu, Yi Tao, Dan Deng, Yongchun Kan, Xiaoyan Du, Xiuyu Liu, Gang Tang
Summary: Silane coupling agent (KH550) was used to modify the surface of iron tailings to produce MIT, and it was compounded with ammonium polyphosphate (APP) on thermoplastic polyurethane (TPU) to prepare a series of TPU/APP/MIT composites. These composites exhibited excellent flame retardancy and smoke suppression.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Jingfan Zhang, Huqun Wang, Wenxiang Sun, Zhiyuan Zhang, Hongfei Li, Sheng Zhang, Jun Sun, Xiaoyu Gu
Summary: Coating graphene oxide and melamine formaldehyde on ammonium polyphosphate can enhance the flame retardant efficiency significantly, reducing dripping during burning and achieving a higher char residue. The integrated intumescent flame retardant mechanism involves heat transfer and cross-linking of decomposed products, resulting in compact char formation.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Wen-Juan Hu, Ying-Ming Li, You-Yu Pang, Yi-Ran Li, De-Yi Wang
Summary: Thermoplastic polyurethane elastomer (TPU) is a flammable material that restricts its practical application. In order to improve the flame retardancy of TPU, a halogen-free flame retardant (AL-APP) containing phosphorus and nitrogen elements was designed. The results showed that TPU/AL-APP5 composites exhibited better flame retardancy in terms of limiting oxygen index and UL-94 vertical measurement, and reduced peak heat release rate and total heat release in cone calorimeter measurement.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Thermodynamics
Guochao Yang, Qiuhui Zhang, Yan Li, Yunshu Ouyang
Summary: In this study, hydrophobic microcapsule-encapsulated ammonium polyphosphate (HMAPP) was prepared and applied to the preparation of hydrophobic flame-retardant kraft paper. The results showed that HMAPP provided the kraft paper with hydrophobic property and enhanced its physical strength. Kraft paper treated by HMAPP exhibited self-extinguishing behavior and formed a flame-retardant layer on the fiber surface.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Materials Science, Multidisciplinary
Zhirong Xu, Zihui Xu, Ran Tao, Liangchen Mao, Jing Zhan, Junfeng Xiao, Tao Yu
Summary: Phosphomolybdic acid (PMA) as a synergist improves the flame retardancy and thermal stability of polyurethane (PU) foam with ammonium polyphosphate (APP). Adding PMA increases the flame retardant performance and carbon residue of PU/APP composites. PMA also affects the density and compressive strength of PU composites.
FRONTIERS IN MATERIALS
(2022)
Article
Agricultural Engineering
Lei Yu, Guochao Yang, Xuanye Wang, Jian Fang
Summary: This study employed an in-situ precipitation method to construct a double-shell ammonium polyphosphate microcapsule, with ethyl cellulose and nano-silica serving as shell materials. The microcapsule exhibited improved flame retardancy and fire safety, as evidenced by significant reductions in both maximum heat release rate and total heat release. The real-time Fourier transform infrared, scanning electron microscopy, and Raman spectrum analyses revealed the combustion process of the modified kraft paper. Physical and hygroscopicity tests demonstrated superior compatibility of the microcapsule with substrates.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Polymer Science
Ran Zheng, Mengqi Li, Yajun Chen, Fenghao Hao, Bo Xu
Summary: Ammonium polyphosphate (APP) was modified using synthesized phosphorus-containing silica gel to form MAPP, which exhibited improved thermal stability, flame retardant performance, and mechanical properties in thermoplastic polyurethane (TPU) composites. The incorporation of MAPP resulted in significant reductions in heat release, smoke release, and improvements in char yield in TPU composites compared to APP.
JOURNAL OF POLYMER RESEARCH
(2023)
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
Chemistry, Applied
Jinyong Ren, Yaxuan Wang, Junxiu Piao, Jiahui Cui, Haocun Guan, Chuanmei Jiao, Xilei Chen
Summary: With the increasing consumption of petroleum resources and the need for environmental protection, the exploitation and utilization of biological resources have reached a new height. Researchers have successfully developed a phosphorus-free and green organic-inorganic hybrid flame-retardant system using oyster waste. The introduction of this environmentally friendly material enhanced the fire safety of epoxy, reducing peak heat release rate and total CO production.
PROGRESS IN ORGANIC COATINGS
(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
Polymer Science
Richeng Lian, Yunpeng Jiang, Haocun Guan, Jiahui Cui, Qingyao Gao, Lei Liu, Xilei Chen, Chuanmei Jiao
Summary: Developing MXene-based polymer nanocomposites with efficient fire safety, excellent thermal conductivity, and enhanced mechanical properties has been a research hotspot. In this study, a hierarchical MXene@PDA@CoFeOx nanohybrid was fabricated using a biomimetic self-assembly strategy and employed to prepare EP nanocomposites. The MXene@PDA@CoFeOx showed excellent dispersion and interfacial compatibility in the EP matrix, resulting in improved thermal stability, fire safety, thermal conductivity, and mechanical performance.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Chemistry, Applied
Richeng Lian, Mingyu Ou, Zexuan Zhao, Qingyao Gao, Xinliang Liu, Lei Liu, Xilei Chen, Chuanmei Jiao
Summary: Developing high-performance epoxy nanocomposite coatings with excellent fire safety, thermal conductivity, and mechanical performance has been a challenging task. In this study, a multifunctional nanohybrid (MXene@IL) was fabricated using an electrostatic self-assembly strategy, and epoxy nanocomposite coatings based on MXene@IL (EP/MXene@IL) were prepared. The MXene@IL nanohybrids showed excellent dispersion and interfacial compatibility in the epoxy matrix. The addition of 2.0 wt% MXene@IL resulted in a significant improvement in fire safety, with a reduction in peak heat release rate by 43.76% and smoke factor by 65.99% compared to virgin epoxy resin (EP). Furthermore, EP/MXene@IL-2.0 exhibited an increased thermal conductivity by 21.56%. The flexural and impact strengths of EP/MXene@IL-1.0 were also improved by 10.24% and 44.73%, respectively. MXene@IL acted as a co-curing agent, facilitating the curing reaction of the epoxy nanocoatings. This study provides a feasible strategy for designing multifunctional MXene@IL-based epoxy nanocomposite coatings.
PROGRESS IN ORGANIC COATINGS
(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)
