Article
Polymer Science
Kai Xu, Xing Tian, Ying Cao, Yaqi He, Yanzhi Xia, Fengyu Quan
Summary: Calcium alginate fibers and flame-retardant polyamide-66 were used to prepare composite paper, where the addition of FR-PA effectively suppressed the combustion of Ca-Alg by forming a compact carbon layer. The combustion and thermal degradation behavior of the composite paper were analyzed using cone calorimetry and other methods, with the results showing excellent flame retardancy of the composite paper.
Article
Polymer Science
Xingdong Chen, Wei Lan, Wei Dou
Summary: A polystyrene nanospheres coated red phosphorus (PSNS@RP) flame retardant was successfully prepared, with the ability to greatly reduce the release of phosphine and improve the material's ignition point and moisture absorption rate. Adding PSNS@RP to polyamide 66 (PA66) significantly improves the material's flame retardancy and thermal stability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Applied
Wei Liu, Rui Shi, Xinguo Ge, Hao Huang, Xiaosui Chen, Meng Mu
Summary: The development of a bio-based finishing using IP6 biomolecules can reduce the flammability and melt dripping of polyamide 66 fabric, improving fire performance and water resistance. The bio-based coating formation containing P-O-P groups by hydration reaction between IP6 biomolecules contributes to the enhancement of these properties.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Multidisciplinary
Jingnan Zhang, Siming Lian, Yifan He, Xinyu Cao, Jiaming Shang, Qingyun Liu, Gang Ye, Kun Zheng, Yongmei Ma
Summary: A new method was proposed to improve the thermal stability of the highly reactive flame retardant CPPOA, resulting in the successful synthesis of intrinsic flame-retardant polyamide 66 (FRPA66) with excellent properties. The FRPA66 showed high flame retardancy and good mechanical properties, demonstrating great potential for various applications.
Article
Polymer Science
Yanpeng Wu, Tonghui Yang, Yongchang Cheng, Tao Huang, Bin Yu, Qilin Wu, Meifang Zhu, Hao Yu
Summary: A sulfur- and phosphorus-containing flame retardant monomer was designed and synthesized, and then incorporated into polyamide 66 (PA66) to improve its fire safety. The resulting PA66-PDDDS copolymer exhibited suppressed smoke generation, satisfactory mechanical properties, a good UL-94 rating (V-0), and a high limiting oxygen index (31.6%). The enhanced flame retardancy was attributed to the scavenging of free radicals by gas-phase species and the formation of a char layer by condensed-phase products.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Biochemistry & Molecular Biology
Mohammad Ziaur Rahman, Xin Wang, Lei Song, Yuan Hu
Summary: In this study, a green, bio-based formaldehyde-free flame retardant was synthesized and applied to improve the flame retardancy of polyamide 66 textiles. The results showed that the flame retardant effectively suppressed combustion and improved the material's flammability. The treated samples also exhibited good durability and washability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Shikun Zhao, Xiangyang Chen, Yang Zhou, Biao Zhao, Qing Hu, Shangtao Chen, Kai Pan
Summary: With the increasingly prominent global resource and environmental issues, bio-based polyamides are showing promising prospects due to their renewable and low carbon emission characteristics. The copolymerization of reactive flame retardants with biomass monomers to prepare intrinsically flame-retardant polyamides has become a hot research topic. In this study, a reactive flame retardant with excellent solubility and temperature resistance is synthesized, and flame retardant polyamide 56 with excellent flame-retardant performance, temperature resistance, and mechanical properties is prepared through one-step melt polycondensation.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Nanoscience & Nanotechnology
Wei Liu, Rui Shi, Zejiang Zhang, Xinguo Ge, Pingli Li, Xiaosui Chen
Summary: This study successfully incorporated Fe3+ ions onto the surface of PA fabric using M/P technology, resulting in excellent flame retardancy and dripping resistance of the fabric. The treated fabric exhibited the highest LOI value and no melt dripping during flame retardant tests. A composite thermal barrier structure was observed on the burnt fabric surface, contributing to the significant enhancement in fire performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
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
Wei Liu, Rui Shi, Zejiang Zhang, Mingqiang Yan, Xiaosui Chen, Yuyan Chen
Summary: In this study, a facile bio-based flame retardant finishing was provided to polyamide (PA) 66 fabric by utilizing low concentration IP6 in combination with Al3+ ion to form insoluble Al3+-IP6 complex salt on the fabric surface through coordination driven layer-by-layer deposition technology. Testing showed that 20LBL PA fabric exhibited the highest flame retardancy and durability among all samples, indicating the effectiveness of this novel approach.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Engineering, Environmental
Min Jiang, Bo-Wen Liu, Feng-Ming He, Qin Zhang, Ao Wang, Hai-Bo Zhao, Li Chen, Yu-Zhong Wang
Summary: We successfully designed and synthesized high-performance polymers with excellent overall properties by simultaneously modulating their chemical constitution and topological conformation. The incorporation of a sidechain caged structure enhanced chain entanglement, leading to improved mechanical strength and heat resistance. Additionally, the flame retardancy of the polymers was significantly enhanced due to the free radical scavenging effect of the phosphorus-based monomer. This work provides a novel method for fabricating high-performance polymers for various applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Qiang He, Jiwen Wang, Guangfei Wang, Xiaxia Hao, Anling Li
Summary: This study successfully developed a coating with superhydrophobic and flame retardant properties, which can form a protective layer against fire and pollution on polyester fiber fabrics, and has good durability.
MATERIALS & DESIGN
(2023)
Article
Engineering, Environmental
Qin Zhang, Guo-Rui Zhu, Xiang-Xin Xiao, Qing-Song Liu, Min Jiang, De-Ming Guo, Hai-Bo Zhao, Wen-Da Li, Li Chen, Bo-Wen Liu, Yu-Zhong Wang
Summary: Constructing micro cross-linking structures into molecular chains improves basic properties of thermoplastic polymers. However, this method has limitations in improving polymer functionality. In this study, a multifunctional micro cross-linking network was reported, enhancing not only mechanical strength but also flame retardancy, dielectric properties, battery performance, antistatic properties, etc. A novel phosphinamide-containing monomer was synthesized and copolymerized into the polymer chain, resulting in improved tensile strength and flame retardancy, as well as various other desirable properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Liu Xiang, Chen JunLi, Shao QingQing, Cao JiQiang, Du ZhaoQun, Liu HongLing, Yu WeiDong
Summary: The study successfully prepared a high-performance superamphiphobic aramid fabric (SAF) using a simple and low-cost method. SAF showed excellent repellency to acid/alkali solutions and low boiling point organic solvents, along with superior flame retardancy, strength and comfort. The durability of SAF was also demonstrated through various tests under extreme environmental conditions.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Article
Polymer Science
Peiyi Zhao, Fang Xu, Yajun Chen, Tiandong Huang, Guangxian Zhang
Summary: A novel flame retardant, DETA-P, was synthesized and characterized. DETA-P-treated cotton fabrics showed excellent flame retardancy and durability. The introduction of phosphonate and ammonium phosphorus acid groups into the flame retardant molecule improved the flame retardancy and durability of the cotton fibers.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Materials Science, Paper & Wood
Dan Meng, Kaihao Wang, Shuheng Wang, Yong Qiu, Xiaoyu Gu, Jun Sun, Hongfei Li, Sheng Zhang
Summary: In this study, carbonated apatite (CAp) was bio-mineralized in wood vessel using the method of gradient impregnation, forming organic-inorganic composites. The CAp@wood(75G) sample exhibited excellent mechanical strength, flame retardancy, and water resistance. The mechanism of flame retardancy was explored, where CAp decomposed to dilute combustible gases and catalyze the formation of a barrier during burning. The efficient processing method by bioinspired mineralization was found to be eco-friendly and effective.
Article
Engineering, Environmental
Peng Qi, Yuchun Li, Yuan Yao, Jun Sun, Lu Li, Jian Liu, Xiaoyu Gu, Hongfei Li, Sheng Zhang
Summary: In this study, a formaldehyde-free flame retardant cotton fabric with ultra washing durability was prepared through covalent bonding and interface polymerization. The fabric showed excellent flame retardancy, even after 300 washing cycles. The interface polymerization between PEI and TMC stabilized the flame retardant coating and protected the fabric, leading to durable flame retardancy. This work opens up promising prospects for the fabrication of bio-safe durable flame retardant cotton fabrics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Yifang Hua, Jun Sun, Shengling Jiang, Xiaoyu Gu, Sheng Zhang
Summary: This study successfully improved the flame retardancy and mechanical properties of epoxy resin by introducing DOPO-SGA. The addition of DOPO-SGA increased the LOI of epoxy resin to 33.2%, achieved a UL-94 rating of V-0, and reduced smoke and heat release. Moreover, the tensile strength and impact strength were also enhanced.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Polymer Science
Yifang Hua, Jinxuan Chen, Jian Liu, Jun Sun, Xiaoyu Gu, Shengling Jiang, Sheng Zhang
Summary: A flame retardant (DPPVA) was synthesized through a Schiff-base reaction, and it improved the thermal stability, flame retardancy, and antibacterial activity of the cured epoxy resin (EP). The EP/4% DPPVA sample showed good results in terms of flame retardancy, with reduced heat release rate, smoke production, and increased char residue. Additionally, it exhibited effective repellence to bacteria. The addition of 4% DPPVA to EP slightly decreased the impact strength, but it was still acceptable for industrial scenarios.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Xiaosui Chen, Can Wang, Shuzheng Liu, Aiqing Zhang, Wei Liu, Lijun Qian
Summary: By coating HBPPA and GO on the surface of glass fibers, GF@HBPPA@GO fibers were prepared to improve the flame retardancy of polymer composites without affecting their mechanical properties.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Yifang He, Yifang Hua, Jinxuan Chen, Junming Wang, Lijun Qian, Jun Sun, Hongfei Li, Xiaoyu Gu, Sheng Zhang
Summary: Piperazine hexahydrate (PI) and diethylenetriamine penta(methylene phosphonic acid) (DTPMP) were used to synthesize flame-retardant PI-DTPMP through supramolecular reaction. The incorporation of PI-DTPMP improved the mechanical and flame-retardant properties of epoxy resin (EP). EP composites with only 5 wt% loading of PI-DTPMP exhibited excellent flame retardancy and reduced heat release rate, total heat release, and total smoke release compared to neat EP.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Environmental Sciences
Peng Qi, Feng Chen, Yuchun Li, Yichong Jiang, Tao Zhu, Jun Sun, Hongfei Li, Xiaoyu Gu, Sheng Zhang
Summary: In this study, a highly-effective hyperbranched flame retardant (DT) was synthesized by ester exchange and coated on PET fabric to improve its fire performance. The treated PET fabric showed good flame retardancy and physical properties. Moreover, the processing of the flame retardant was eco-friendly. This work provides a facile and eco-friendly strategy for fabricating flame retardant PET fabric with excellent comprehensive performances.
Review
Materials Science, Multidisciplinary
Peng Qi, Feng Chen, Yuchun Li, Hongfei Li, Xiaoyu Gu, Jun Sun, Sheng Zhang
Summary: Fabrics with durable flame retardancy are crucial for fire prevention in daily life. This review discusses advancements in durable flame-retardant fabrics over the past decade, including different strategies to enhance flame retardancy. The design principles, methodologies, and challenges of these strategies are summarized, along with critical analysis of their advantages and disadvantages. Future opportunities for replacing conventional processes are also proposed based on market requirements and technologies.
ADVANCED FIBER MATERIALS
(2023)
Article
Engineering, Environmental
Feng Chen, Peng Qi, Jian Liu, Gang Xia, Bin Fei, Jun Sun, John H. Xin, Sheng Zhang
Summary: In this study, a durable flame retardant cotton fabric (Cotton-APA/LNT) was successfully fabricated by covalently bonding ammonium phytate (APA) and lentinan (LNT). The Cotton-APA/LNT fabric exhibited high limiting oxygen index (LOI) value and self-extinguishing ability. After laundering cycles, the fabric still showed good flame retardancy and improved durability and breaking force.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jian Liu, Peng Qi, Jingfan Zhang, Xiaodong Liu, Feng Chen, Hongfei Li, Xiaoyu Gu, Jun Sun, Sheng Zhang
Summary: In this study, an eco-friendly and multifunctional nylon/cotton blend fabric was constructed using phytic acid-induced polymerization of polypyrrole and dip coating with silver nanowires. The treated blend fabric exhibited high electrical conductivity, excellent electromagnetic shielding performance, efficient thermal management, significant reduction in heat release rate and smoke production, and considerable antibacterial property.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Dan Meng, Weiwen Gu, Guiyang Zhu, Jun Sun, Haiqiao Wang, Fenquan Nie, Xiaoyu Gu, Pengyu Bi, Sheng Zhang
Summary: In this study, a hyperbranched flame retardant (HPNP) containing nitrogen and phosphorus was successfully synthesized and its distribution and enhancement effect on flame retardancy in flexible polyurethane foam (FPUF) were demonstrated through simulation and experiments. Additionally, the improved compatibility and mechanical properties of FPUF with HPNP were observed, indicating its potential as an ideal flame retardant additive.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Physical
Xinxin Dong, Tao Zhu, Guoqing Liu, Jinxuan Chen, Hongfei Li, Jun Sun, Xiaoyu Gu, Sheng Zhang
Summary: Coating commercial polypropylene separators with three brominated flame retardants greatly improves the flame retardancy of lithium-sulfur batteries and reduces the self-extinguishing time of the electrolyte through radical elimination mechanism. Oxygen-containing flame retardants exhibit a stronger adsorption capacity and are more advantageous in mitigating the shuttle effect and enhancing the cycle and rate performance of the batteries. This simple coating strategy offers a competitive option for large-scale production of high-safety lithium-sulfur batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Xiaodong Jin, Xinyi Wu, Qinyong Liu, Shibing Sun, Suping Cui, Sheng Zhang, Chen Chen
Summary: In this study, a metal organic framework (Fe-MOF) with the ability to absorb toxic gases and good compatibility was synthesized by chelating a novel organic ligand with iron salt. It was then used as a synergist to enhance the efficiency of intumescent flame retardant (IFR) in polystyrene (PS) substrate. The addition of 20% IFR and 2% Fe-MOF resulted in PS composites with improved fire resistance properties, including increased limiting oxygen index (LOI), UL rating, and decreased heat release rate (HRR) and smoke production. The Fe-MOF acted mainly in the condensed phase, contributing to the formation of dense char residues. The organic ligand in Fe-MOF also exhibited good compatibility with the PS substrate, mitigating the deterioration of mechanical properties caused by the addition of IFR.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Polymer Science
Yifang He, Xinyu Cui, Zhishuo Liu, Fujie Lan, Jun Sun, Hongfei Li, Xiaoyu Gu, Sheng Zhang
Summary: By synthesizing a novel phosphorus-containing flame retardant, a multi-functional additive was developed for epoxy resin with outstanding flame retardancy, transmittance, mechanical enhancement, and anti-aging performance.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Xiaobei Li, Jian Liu, Feng Chen, Jingfan Zhang, Hongfei Li, Xiaoyu Gu, Jun Sun, Sheng Zhang
Summary: A bio-based flame retardant, APP-LA, was synthesized and applied to lyocell fabrics to address the flammability issue. It increased the limiting oxygen index, reduced heat release and damage length, and generated a dense char layer.
POLYMER DEGRADATION AND STABILITY
(2023)
