Article
Chemistry, Multidisciplinary
Hafezeh Nabipour, Xin Wang, Lei Song, Yuan Hu
Summary: The study focused on the development of a fully bio-based epoxy thermoset from syringaldehyde and furfurylamine, which exhibited high glass transition temperature, mechanical strength, intrinsic flame resistance, and antibacterial properties. This bio-based epoxy thermoset showed superior performance compared to petroleum-based epoxy thermosets, making it a promising green substitute for high performance applications in fire safety.
Article
Materials Science, Multidisciplinary
Maoyong Zhi, Xiong Yang, Rong Fan, Shan Yue, Lingling Zheng, Quanyi Liu, Yuanhua He
Summary: In this study, a vanillin-based epoxy resin with a rigid Schiff base structure and flexible alkane segment was synthesized. Compared with traditional petroleum-based epoxy resins, the vanillin-based epoxy resin showed higher char yield and achieved a higher flame retardancy rating. The enhanced flame retardancy and mechanical properties were attributed to the complementary effect of the rigid Schiff base structure and flexible alkane segment.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Maoyong Zhi, Xiong Yang, Rong Fan, Shan Yue, Lingling Zheng, Quanyi Liu, Yuanhua He
Summary: In this study, a novel vanillin-based epoxy resin (VH-HDA-EP) was synthesized and cured with 4,4'-diaminodiphenylmethane (DDM) to prepare thermosets. The VH-HDA-EP/DDM thermosets exhibited enhanced thermal stability and flame retardancy compared to traditional petroleum-based epoxy resins.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Polymer Science
Jiachen Wang, Wei Liu, Huan Liu, Xiaodong Wang, Dezhen Wu, Shuangkun Zhang, Shaowei Shi, Weiwei Liu, Zhanpeng Wu
Summary: A novel epoxy monomer, CP-EP, composed of nontoxic eugenol and nonflammable cyclotriphosphazene, was successfully synthesized in this work. The resulting cyclotriphosphazene-based thermosets (CPTs) exhibited improved properties compared to bisphenol-A epoxy resin, including higher glass transition temperature, enhanced mechanical strengths, and enhanced nonflammability. The use of this environmentally friendly and fire-safe epoxy thermosetting system has the potential to benefit both the environment and human health.
Article
Materials Science, Multidisciplinary
Fengfeng Zhang, Yuliang Li, Zhihuan Weng, Tianpeng Zhang, Zaiyu Wang, Jinyan Wang, Xigao Jian
Summary: A novel phthalazinone-based epoxy resin was designed and synthesized, showing lower melting viscosity and enhanced char forming ability. Combustion tests demonstrated significant improvements in total heat release, total smoke production, and peak heat release rate compared to conventional epoxy resin systems.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Engineering, Environmental
Yingbing Zou, Zhile Xiong, Yunbin Li, Wenqi Cui, Fubin Luo, Hongzhou Li
Summary: A photoluminescence-functionalized epoxy resin composite EP/PHOF-1A has been developed based on phosphoric acid-based hydrogen-bonded organic frameworks. It inherits the photoluminescence property and exhibits wavelength-dependence. Additionally, it shows excellent flame retardancy and inhibits the release of heat, smoke, and harmful gases during combustion.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Hao Guan, Zhiyong Li, Qinlong Xu, Jingjing Meng, Kai Guo
Summary: A multifunctional epoxy resin derived from sustainable resveratrol and phloroglucinol shows excellent mechanical properties, heat resistance, and flame retardancy, making it suitable for lightweight, fireproof, and heat insulation engineering.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Polymer Science
Chang Liu, Ping Li, Ying-Jun Xu, Yun Liu, Ping Zhu, Yu-Zhong Wang
Summary: The effects of nickel alginate on the thermal stability, fire safety, and mechanical properties of epoxy resin (EP) were investigated. Nickel alginate significantly improved the thermal stability and reduced smoke and toxic volatiles production. It slightly reduced tensile properties but enhanced impact strength.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Polymer Science
Guangming Lu, Xuezhen Wang, Na Teng, Jingyuan Hu, Liyue Zhang, Jinyue Dai, Yongjia Xu, Sakil Mahmud, Xiaoqing Liu
Summary: The study successfully synthesized a novel bio-based epoxy resin with excellent flame retardancy and thermal properties, providing a facile method for preparing high-performance flame-retardant epoxy resin from renewable resources.
Article
Materials Science, Composites
Weijun Yang, Hui Ding, Wei Zhou, Tianxi Liu, Pengwu Xu, Debora Puglia, Jose M. Kenny, Piming Ma
Summary: In this study, vanillin-based epoxy monomers were synthesized to develop epoxy vitrimer materials with good flame retardancy and degradability. The material exhibited different mechanical properties by adjusting the monomer ratio. Moreover, the material showed excellent self-healing capability and reprocessability, and carbon fiber reinforced epoxy composites could be fully recycled.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Li Li, Hui Xi, Jing Yang, Ting Xiao, Rui Zuo, Xueqing Xu, Yaoxia Yang, Zhiwang Yang, Ziqiang Lei
Summary: Considerable efforts have been made to fabricate the intrinsic epoxy resin with excellent flame retardancy and mechanical properties. Conventional single molecule flame retardants have met the bottleneck in past research studies, leading researchers to investigate dendritic flame retardants. In this study, poly-amidoamine (PAMAM) dendrimers were synthesized and used as curing agents and flame retardants for EP materials, resulting in significant improvements in thermal stability, fire safety, and flexural capacity.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Li Li, Hui Xi, Jing Yang, Ting Xiao, Rui Zuo, Xueqing Xu, Yaoxia Yang, Zhiwang Yang, Ziqiang Lei
Summary: Poly-amidoamine (PAMAM) dendrimer flame retardants of different generations were synthesized and utilized as a curing agent and a flame retardant for the fabrication of high-purity epoxy resin (EP) materials. The results demonstrated that the EP/PAMAM thermosets exhibited enhanced thermal stability, fire safety, and flexural capacity compared to pure EP.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jianjian Luo, Congling Shi, Xiaodong Qian, Keqing Zhou
Summary: A bio-based flame retardant was synthesized and incorporated into epoxy resin, improving the resin's thermal stability and flame retardancy properties, significantly enhancing fire safety.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Polymer Science
Jianfan Cao, Huajun Duan, Jiahao Zou, Junjun Zhang, Chao Wan, Chenhao Zhang, Huiru Ma
Summary: A bio-based phosphorus-containing benzoxazine monomer (SFD-BOZ) was synthesized and blended with anhydride-cured epoxy resin (EP) to enhance its flame retardancy and heat resistance. The incorporation of SFD-BOZ significantly improved the flame retardancy of EP, reduced the heat release rate, smoke production, and increased the flexural and tensile strengths of the modified EP.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Engineering, Multidisciplinary
Lei He, Tao Chen, Yi Zhang, Lianrui Hu, Ting Wang, Rui Han, Jia-Lin He, Wei Luo, Zhi-Guo Liu, Jin-Ni Deng, Ming-Jun Chen
Summary: A bulky aromatic structure imide-DOPO derivative (BMP) successfully imparts flame retardancy and fluorescence simultaneously to epoxy resins. BMP, benefiting from space hindering and intermolecular interactions, maintains the glass transition temperature of the epoxy resin with minor impact on mechanical properties.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Industrial
Ruihang Xie, Yin Pan, Tiejun Zhou, Wei Ye
Article
Public, Environmental & Occupational Health
Yin Pan, Ruihang Xie, Qin Yan, Tiejun Zhou
Summary: Earthquakes have a significant impact on the mental health of rural residents, with the safety and type of housing potentially playing a crucial role in influencing their mental well-being. Telemedicine assessment could be a promising approach for evaluating and prioritizing the mental health of rural residents in seismically active regions, offering potential for large-scale data scoring and mental health evaluation in the future.
FRONTIERS IN PUBLIC HEALTH
(2021)
Article
Materials Science, Composites
Zheng Li, Kexin Wang, Xudong Liu, Jiaoli Hu, Jie Zhang, Guorui Yang, Ruihang Xie, Jialiang Zhang, Yuhui Ao
Summary: In this study, a new modified chlorinated polypropylene resin (g-CPP) was synthesized and used as a sizing agent for short carbon fiber (SCF) to enhance the interfacial adhesion of SCF reinforced polypropylene (PP) composites. The results showed that the g-CPP sizing agent improved the surface properties of SCF and significantly improved the flexural and tensile strengths of the composites.
POLYMER COMPOSITES
(2022)
Review
Construction & Building Technology
Ruihang Xie, Sisi Zlatanova, Jinwoo Lee Brian
Summary: This paper surveys the use of three-dimensional indoor environments in pedestrian evacuation simulations and identifies the limitations and areas for future research. The findings highlight the need for enriching semantics, investigating 3D geometry, and fostering standardization of 3D indoor environments to enhance the realism of simulations.
AUTOMATION IN CONSTRUCTION
(2022)
Article
Engineering, Civil
Rui Jiang, Yuexin Wang, Ruihang Xie, Tiejun Zhou, Dachuan Wang
Summary: This study aims to explore the specific effect mechanism of using handrails at different heights on individual fatigue and evacuation speed during ascending evacuation. The study found that participants' proportion of using handrails surged when the ascending vertical height exceeded a certain threshold and reached saturation, and handrails can effectively alleviate physical fatigue. In addition, using handrails significantly improved the evacuation speed, especially in the later period when speed attenuation slowed down.
ASCE-ASME JOURNAL OF RISK AND UNCERTAINTY IN ENGINEERING SYSTEMS PART A-CIVIL ENGINEERING
(2022)
