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
Engineering, Environmental
Jingjing Meng, Pengfei Chen, Rui Yang, Linli Dai, Cheng Yao, Zheng Fang, Kai Guo
Summary: Novel polymers based on naturally available honokiol were fabricated to produce renewable and functional epoxy resins, showing excellent thermal stability, conductivity, high specific heat, dielectric properties, and low flammability. The high-performing networks have great potential applications in the electronics and microelectronics industry.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Weijun Yang, Hui Ding, Tianxi Liu, Rongxian Ou, Jieying Lin, Debora Puglia, Pengwu Xu, Qingwen Wang, Weifu Dong, Mingliang Du, Piming Ma
Summary: By combining vanillin-based epoxy resin with graphene aerogel, inherently flame-retardant and thermally conductive composites were successfully designed and prepared. The composite material exhibits superior mechanical and thermal properties, making it suitable for the preparation of high-performance biobased flame-retardant materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Anlin Zhang, Jianzhong Zhang, Lina Liu, Jinfeng Dai, Xinyu Lu, Siqi Huo, Min Hong, Xiaohuan Liu, Mark Lynch, Xuesen Zeng, Paulomi Burey, Pingan Song
Summary: Fabricating a high-performing thermoset using bio-based flame retardant is critical for sustainable development. A novel flame retardant named DAL-x, fabricated by grafting DOPO onto lignin, is used to manufacture epoxy composites with industrial requirements. The resulting DAL-x/EP composite exhibits excellent flame retardancy and improved mechanical properties compared to pure EP. This work offers a feasible strategy for creating efficient bio-based flame retardants and preparing high-performance EP composites that meet fire retardancy requirements in industries.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Applied
Jie Wang, Yu Guo, ShunPing Zhao, Zhihao Zhu, Yan Huang, Tianhao Tian, Yongcun Zhou, Lianghui Bi
Summary: In this study, a structurally novel halogen-free oligomer poly (benzoguanamine phospholipamide) (BQDP) was successfully synthesized and used as an effective flame retardant for epoxy resins. BQDP showed improved limited oxygen index (LOI) values and UL-94 ratings, as well as excellent smoke suppression performance. The combination of phosphaphenanthrene and triazine demonstrated a synergistic effect, resulting in outstanding flame-retardant properties in both gaseous and condensed phases.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Siyu Jiang, Chunhua Lou, Yongli Zhou, Xiaohua Gu, Xianzhi Kong
Summary: Corn straw/epoxy resin composites (CS/ECs) and maleic anhydride acetylated CS/ECs (MA-CS/ECs) were prepared and characterized. The interfacial affinity of the composites was confirmed by the contact angle. The results demonstrated the successful bonding of maleic anhydride onto the structure of corn straw. The MA-CS/ECs showed better impact and flexural resistance, and stronger interfacial compatibility than CS/ECs.
Article
Materials Science, Composites
Xinming Ye, Zhiqing Han, Panpan Tian, Tong Liu, Xiangning Meng, Chengke Yuan, Wensheng Wang, Yingchun Li
Summary: Cu-Ph-POSS was synthesized by grafting Cu into Si-O-Si cage, and used to solve the problem of black smoke generated during combustion of epoxy resin (EP) in high fire safety fields. The incorporation of 2 wt% Cu-Ph-POSS into EP significantly improved thermal stability and reduced peak heat release rate (p-HRR), peak smoke production rate (p-SPR), and peak CO production rate (p-COP) by 56.8%, 44.4%, and 59.4%, respectively. The presence of polycyclic aromatic and Si-C compounds in the interior char layers effectively inhibited the release of heat, smoke, and toxic volatiles, imparting superior flame retardant and smoke suppression performances to the fabricated EP composites.
COMPOSITES COMMUNICATIONS
(2023)
Article
Polymer Science
Sihui Liu, Xiaoqing Zhang, Minglu Bu, Caihong Lei
Summary: In this study, a series of biobased epoxy oligomers were synthesized using the tatty and fusion methods, and cured resins were prepared. The results showed that these biobased epoxy oligomers exhibited high heat resistance, excellent thermal stability, and intrinsic flame retardancy.
EUROPEAN POLYMER JOURNAL
(2022)
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
Chemistry, Applied
Yang Luo, Jingyu Cai, Ling Li, Xiaocheng Lin, Longqiang Xiao, Linxi Hou
Summary: A new multi-DOPO-based reactive flame retardant (DZH) was successfully synthesized and used as a co-curing agent with DDM in epoxy resin (EP), achieving a balance between flame retardancy and overall performance. The addition of DZH decreased the activation energy of the curing reaction system and enhanced the formation of char residues under high temperature conditions. The EP/DZH system exhibited significantly improved flame retardancy and mechanical properties at certain additions.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Nanoscience & Nanotechnology
Haodong Duan, Chunyan Zhuang, Fengce Mei, Chong Zeng, Rami Adel Pashameah, Mina Huang, Eman Alzahrani, Jun Gao, Yuxi Han, Qing Yu, Zhongwei Wang
Summary: A fluorine-containing diphenylphosphine oxide derivative was synthesized and used to improve the flame retardancy and dielectric properties of epoxy resin. The modified epoxy resin showed enhanced flame retardancy, lower heat release rate, and reduced dielectric loss, suggesting its potential for advanced electronic materials.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
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
Lei Li, Shan Li, Hao Wang, Zongmin Zhu, Xianze Yin, Jiawei Mao
Summary: A novel flame retardant DHI was synthesized and incorporated into epoxy resin, improving the flame retardancy of the resin and reducing the heat release rate, smoke production, and other combustion-related properties.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Materials Science, Multidisciplinary
Pengcheng Zhou, Junjie Wang, Ting Bai, Venkata Chevali, Dan You, Siqi Huo
Summary: In this study, flame-retardant epoxy composites with high performance and fire safety were prepared through simple blending of biomass chitosan and DOPO. By adjusting the mass ratio of chitosan to DOPO, UL-94 V-0 flame retardancy was achieved with increased limiting oxygen index and mechanical properties.
ACS APPLIED POLYMER MATERIALS
(2023)
