Article
Polymer Science
Elpida Piperopoulos, Giuseppe Scionti, Mario Atria, Luigi Calabrese, Edoardo Proverbio
Summary: This paper aims to develop and optimize flame-retardant coatings for naval applications. The study investigates the effect of adding magnesium hydroxide and aluminum hydroxide fillers in an acrylic carrier on the fire resistance of the coatings. The results show that the coatings based on aluminum and magnesium hydroxides exhibit favorable fire resistance, particularly for short times of exposure to direct flames.
Article
Polymer Science
Ling-Li Jiao, Peng-Cheng Zhao, Zhi-Qi Liu, Qing-Shan Wu, Dong-Qiang Yan, Yi-Lan Li, Yu-Nan Chen, Ji-Sheng Li
Summary: In this study, hydromagnesite was used to synthesize magnesium hydroxide as a flame retardant for EVA. The introduction of magnesium hydroxide significantly improved the flame retardant properties and smoke suppression of the composites. The incorporation of different concentrations of sodium hydroxide had limited effect on the mechanical properties of the composites.
Article
Materials Science, Multidisciplinary
Giuseppe Scionti, Elpida Piperopoulos, Mario Atria, Luigi Calabrese, Edoardo Proverbio
Summary: The study of flame-retardant coatings has become interesting in the effort to improve fire safety in various structures. This research focuses on adding harmless hydroxides, magnesium hydroxide and aluminum hydroxide, to an acrylic polymer emulsion to decrease the negative effects of flame-retardant additives on the coatings. Flame exposure tests are conducted to verify the flame stability and thermal insulation of the investigated coatings.
Article
Polymer Science
Fan Guo, Yuze Zhang, Yuchen Jia, Liang Cai, Lijuan Li
Summary: The combination of magnesium hydroxides and graphene oxide effectively improved the fire retardancy of polypropylene, with significant reduction in peak heat release rate, total heat release, and smoke production rate. The synergistic effect between GO and Mg(OH)(2) created an optimized physical barrier, resulting in enhanced mechanical properties and fire-safety of the polymer material.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Polymer Science
De-Xin Ma, Yuan Yang, Guang-Zhong Yin, Antonio Vazquez-Lopez, Yan Jiang, Na Wang, De-Yi Wang
Summary: This study prepared ZIF-67@ATP by in situ growth and investigated its flame retardant properties when added to EVA/MH composites. The results showed that ZIF-67@ATP improved the flame retardancy of the composites and had a positive effect on their mechanical properties.
Article
Environmental Sciences
Pufang Zhao, Wei Zeng, Zhiwang Yang, Yaoxia Yang, Ju Li, Jianping Shi, Na Wen, Hongtao Li, Jie Guan, Ziqiang Lei, Denglong Chen
Summary: A novel organic-inorganic hybrid flame retardant, DMMH, was synthesized and incorporated into an epoxy resin, showing improved flame retardance without sacrificing mechanical properties.
Article
Polymer Science
Linyuan Wang, Yue Wei, Hongbo Deng, Ruiqi Lyu, Jiajie Zhu, Yabing Yang
Summary: The study found that the addition of Pa-Ba to IFR can improve the flame retardancy of EP composites, leading to a reduction in the amount of IFR needed and expanding the application range of EP. The EP/14IFR/2Ba composite showed the highest LOI value and a significant decrease in PHRR compared to pure EP, indicating better carbonization quality.
Article
Polymer Science
Xue Li, Hongbo Zhang, Xiaoyuan Liu, Zhihui Lv, Yankui Jin, Donghai Zhu, Li Dang
Summary: In this study, an effective flame retardant consisting of nanoscale zinc oxide doped on the surface of hexagonal lamellar magnesium hydrate (ZO@MH) has been successfully synthesized. The modified ZO@MH shows improved interfacial interaction with the polypropylene (PP) matrix and reduced agglomeration. The resulting composite materials exhibit enhanced flame retardancy and smoke suppression properties, and also improve the strength of the PP matrix.
Article
Thermodynamics
Yanying Xu, Jindu Li, Ruiqing Shen, Zhi Wang, Po Hu, Qingsheng Wang
Summary: Bio-based flame retardant magnesium phytate (Mg-Phyt) was synthesized and studied for its flame retardancy in epoxy resins. The synergy between Mg-Phyt and agricultural waste material rice husk ash (RHS) was investigated, with promising results in enhancing flame retardant performance in epoxy resins.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Zhongying Ma, Dehai Meng, Zhihao Zhang, Yuhua Wang
Summary: The novel phytic acid-layered double hydroxide flame retardant significantly enhances the flame retardancy of PVA, with high char residue, improved peak release rate and heat release capacity, and visibly reduced burning rate. During combustion, the flame retardant effectively inhibits the melt-dripping of PVA, which is crucial for controlling fire spread. The synergistic flame-retardant mechanism of phosphorus-contained PA and inorganic LDH is proposed, and the composites also exhibit good mechanical properties, making the green flame retardant significant for polymer flame-retardant treatment.
THERMOCHIMICA ACTA
(2022)
Article
Materials Science, Paper & Wood
Meng Kang, Guixing Wang, Wenxia Liu, Dehai Yu, Guodong Li, Zhaoping Song, Xiaona Liu, Huili Wang
Summary: A new method for preparing MH-based flame-retardant paper with high flame retardancy was developed by uniformly loading MH, BMC or their mixture onto cellulose fibers. The loaded materials endow the paper with excellent thermal stability, flame retardancy and fire safety, especially when loaded with a MH/BMC mixture. This study provides a new approach for preparing paper with high flame retardancy.
Article
Polymer Science
Xin He, Jie Guan, Zhengpeng Chen, Zhengshuai Cao, Yunfan Li, Ziqiang Lei, Denglong Chen
Summary: In this study, a bio-based magnesium hydroxide curing agent with flame retardant properties was prepared and used to produce a flame retardant epoxy resin. The results showed that the epoxy resin prepared with the addition of the curing agent and ammonium polyphosphate exhibited good flame retardancy and mechanical properties.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Polymer Science
Dong Yan, Dong Chen, Jia Tan, Liping Yuan, Zizhi Huang, Dongfang Zou, Penghao Sun, Qiang Tao, Jiyong Deng, Yunchu Hu
Summary: A new and efficient flame retardant, ATITP, was synthesized by a solvent-free method for enhancing the flame retardancy of poplar wood density boards. The flame retardant mechanism involving capturing combustion radicals, promoting charring, and inhibiting heat transfer was investigated. The density board treated with 20% ATITP exhibited an ultimate oxygen index (LOI) of 65.1%. Cone calorimetry analysis showed that the flame retardant reduced the total heat release (THR) by 73.9% compared to the pure density board, along with decreased heat release rate (HRR), CO, and CO2 production. Thermogravimetric infrared coupling and thermal cracking gas mass spectrometry analysis revealed that the flame retardant acted as both gas-phase and condensed-phase flame retardant, altering the thermal cracking pathway of wood powder. This study demonstrates the effectiveness of ATITP-treated poplar density boards as flame retardant building materials.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Pengwei Wu, Jie Liu, Song Wang, Sanxi Li, Tao Tang
Summary: Organically modified montmorillonite (OMMT) and Ni2O3 were incorporated into flame-retardant LEM composites, resulting in improved thermal stability and reduced heat release and smoke production. The addition of 5 wt% of OMMT/Ni2O3 had minimal impact on the tensile properties of LEM, while slightly increasing the limiting oxygen index (LOI) value. The combination of OMMT/Ni2O3 promoted the carbonization of the polymer into carbon nanotubes, forming a cohesive char layer with magnesium hydroxide and synergistically reducing heat release and smoke production.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Siyi Xu, Yue Han, Cheng Zhou, Jianxi Li, Liguo Shen, Hongjun Lin
Summary: A new biobased flame retardant (MHPA) was synthesized by neutralizing magnesium hydroxide (MH) with phytic acid (PA). Adding MHPA to ethylene vinyl acetate (EVA) significantly improved the fire retardancy, smoke suppression, and mechanical properties of the composites. The combination of MHPA and MH exhibited excellent carbonization and expansion effects, contributing to the improved flame retardancy.
CHINESE CHEMICAL LETTERS
(2023)
Article
Materials Science, Paper & Wood
Jinyong Ren, Junxiu Piao, Yaofei Wang, Yaxuan Wang, Tingting Feng, Lei Liu, Chuanmei Jiao, Xilei Chen
Summary: A phosphorus/nitrogen compound named CS@APP was synthesized through a mechanochemical method and used as a flame retardant for cotton fabric, achieving significant reductions in heat release rate and improved flame resistance.
Article
Environmental Sciences
Mingyu Ou, Richeng Lian, Jiahui Cui, Haocun Guan, Lei Liu, Chuanmei Jiao, Xilei Chen
Summary: A novel phosphorus-containing ionic liquid (TPP-PF6) was synthesized and used as a co-curing agent and highly effective flame retardant for epoxy resin (EP). The incorporation of TPP-PF6 improved the char formation of EP, inhibiting smoke release at high temperatures. EP/2.0TPP-PF6 achieved a UL-94 V-0 rating and a limiting oxygen index of 30.3% with only 2 wt% of TPP-PF6.
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
Polymer Science
Yaxuan Wang, Jinyong Ren, Mingyu Ou, Jiahui Cui, Haocun Guan, Richeng Lian, Chuanmei Jiao, Xilei Chen
Summary: To address the demand for antibacterial flame-retardant cotton fabrics, a dip-coating method was used to prepare a multifunctional cotton fabric by incorporating epichlorohydrin-modified aramid nanofibers, ionic liquid, and copper sulfate. The resulting fabric exhibited low flammability, high flame retardancy, smoke suppression, toxicity reduction, and antibacterial properties, making it suitable for various applications.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Yaxuan Wang, Yanli Zhang, Tingting Feng, Anqi Teng, Jinyong Ren, Junxiu Piao, Yaofei Wang, Chuanmei Jiao, Xilei Chen
Summary: In this article, a sodium silicate surface-modified phenolic resin microsphere (SSMPHM) was prepared to reduce the fire hazard of thermoplastic polyurethane (TPU). The combustion test results demonstrated that the introduction of SSMPHM remarkably reduced the fire hazard of TPU composites, with a significant decline in peak heat release rate (pHRR) and smoke factor (SF) at 4 wt% content (TPU/SSM-4). The mechanical performance tests showed that SSMPHM could compensate for the loss of mechanical performance caused by PHM.
POLYMERS FOR ADVANCED TECHNOLOGIES
(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
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
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)
