Article
Chemistry, Applied
Wanan Cai, Hailin Wen, Zhicheng Wang, Huimin Lu, Huibo Liu, Yanhui Wang, Wenbin Liu, Jun Wang, Jian Qiu
Summary: Two novel aromatic hyperbranched benzoxazines (HBs) with different structures and properties were designed and prepared. The experimental results showed that one of the polymers, HB-Tppal, exhibited higher molecular weight and better thermal properties, indicating its potential applications.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Engineering, Environmental
San-E Zhu, Wen-Jie Yang, Yu Zhou, Wei-Hao Pan, Chun-Xiang Wei, Anthony Chun Yin Yuen, Timothy Bo Yuan Chen, Guan Heng Yeoh, Hong-Dian Lu, Wei Yang
Summary: In this study, TBPP and Zn-TBPP were synthesized as additives for PS composites, which significantly improved the thermal stability, flame retardancy, and UV resistance of PS while enhancing its mechanical properties.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
K. Mohamed Mydeen, J. Praveen Kanth, Arumugam Hariharan, Krishnasamy Balaji, Subramaniam Rameshkumar, G. Rathika, Muthukaruppan Alagar
Summary: In this study, three types of bio-based benzoxazines were synthesized from thymol using different amines, and their molecular structures and properties were characterized. The curing behavior, thermal stability, flame retardancy, hydrophobicity, and corrosion resistance of these benzoxazines were investigated.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Environmental Sciences
Yingji Wu, Jiamin Wu, Changtong Mei, Rui Yang, Wen He, Xiaona Li, Liping Cai, Ming Guo, Jianzhang Li, Changlei Xia
Summary: This study focused on designing a new multilayering approach to fabricate flame retardant multilayered materials. The multilayered composites showed enhanced flame-retardant properties compared to conventional composites and demonstrated potential for various applications such as food and medical packaging.
ENVIRONMENTAL RESEARCH
(2022)
Article
Polymer Science
Agata Hochol, Monika Flejszar, Pawel Chmielarz
Summary: The search for innovative, more efficient, and cost-effective synthesis methods of flame retardant polymers has gained increasing attention in the research community. The main objective is to develop flame retardants that are safe for both humans and the environment, utilizing renewable resources. This review highlights the use of reversible-deactivation radical polymerization (RDRP) techniques over the past decade for the precise synthesis of flame retardant additives and direct surface modification to enhance fire resistance.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Materials Science, Multidisciplinary
Meiling Gao, Xianglong Wan, Shengfa Lai, Hao Cui, Zhibo Chen, Yanfeng Qian, Guoxin Ding, Guojun Cheng
Summary: Graphite powder used as a substrate for the in-situ polymerization growth of PANI/G composite shows significantly improved electrical conductivity through synergistic effects.
Article
Polymer Science
Jia-Xin Cheng, Wan-An Cai, Zhi-Cheng Wang, Abdul Qadeer Dayo, Zhi-Gang Yuan, Wen-Bin Liu, Jun Wang, Zhong-Cheng Pan
Summary: A boron-containing hyperbranched benzoxazine (HB-B) was synthesized and its properties were evaluated. The curing behavior, thermal stability, flame retardancy properties, and mechanical properties of the synthesized HB-B copolymer were studied. It was found that the introduction of HB-B improved the flame retardancy and mechanical properties of the copolymer.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Pei Xiang, Jun Xu, Biao Li, Weiqi Liu, Jinshun Zhao, Qining Ke, Siwen Bi, Xuhuang Chen
Summary: Transition metal complexes were synthesized by introducing MoO42- and Fe3+, Cu2+, or Zn2+ into amphiphilic polymers through an ion-exchange reaction. These complexes showed improved flame retardancy, smoke suppression, and thermal stability in PVC, with Cu(DN)Mo exhibiting the best performance. The addition of transition metal complexes promoted the formation of a protective carbon layer on the PVC surface during combustion, without impairing the mechanical properties.
Article
Nanoscience & Nanotechnology
Y. Ding, T. Liu, Y. Jiang, J. Zhou, Z. Zhou, J. Sun, J. Peng
Summary: In this study, inorganic porous materials with low thermal conductivity and high flame resistance were fabricated from sodium titanate nanobelts, showing great potential for applications in fire-proof fabrics, high-temperature gas filtration, and heat insulation interlayers.
MATERIALS TODAY NANO
(2022)
Article
Chemistry, Applied
Weihua Meng, Hongjuan Wu, Xue Bi, Zhiyong Huo, Jianing Wu, Yunhong Jiao, Jianzhong Xu, Mei Wang, Hongqiang Qu
Summary: A novel ZIF-8@HCCP flame retardant was synthesized and incorporated into EP to reduce fire hazard. The encapsulation of HCCP into ZIF-8 showed high efficiency in flame retardancy and smoke suppression. The quenching mechanism of ZIF-8@HCCP-incorporated EP led to significant reductions in heat release rate, smoke release rate, and CO release rate, while maintaining good mechanical properties.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Analytical
Khodayar Gholivand, Mohammad Faraghi, Azam Barzegari, Nasrin Fallah, Michal Dusek, Vaclav Eigner
Summary: This paper investigates the performance of two new phosphorus and nitrogen-containing compounds as flame retardants for cotton fabrics. Through experimental analysis and computational simulation, it was found that these compounds possess good thermal and flame retardancy properties.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Multidisciplinary
Anying Zhang, Wenhui Wang, Zhenfeng Dong, Jianfei Wei, Lifei Wei, Weiwen Gu, Guo Zheng, Rui Wang
Summary: In this study, an antidroplet flame retardant system based on FRPET was developed by adding DOPO-POSS as an additive flame retardant. The results showed that DOPO-POSS improved the fire resistance and limiting oxygen index of FRPET, and also enhanced the combustion characteristics.
Article
Polymer Science
Yuyan Zhang, Lifei He, Bing Zhang, Yaohang Cai, Yi Yuan, Jing Zhang, Peng Wang
Summary: Two high HOMO energy level hole-transporting conjugated polymers, p-NP-E-BOC6-E and p-NP-E-BO2EG-E, were synthesized through direct arylation polymerization. The presence of the (2-methoxyethoxy)ethoxy side chain in p-NP-E-BOC6-E results in higher hole mobility, while hexyloxy in p-NP-E-BO2EG-E leads to higher hole density and enhanced conductivity. Both polymers exhibited hole density-dependent mobility and conductivity. When used as the hole transport layer in perovskite solar cells, p-NP-E-BOC6-E demonstrated higher efficiency and better operational and storage stability compared to p-NP-E-BO2EG-E.
Article
Polymer Science
Xinxing Zhang, Qingyin Wang, Shaoying Liu, Lilei Zhang, Gongying Wang
Summary: The newly synthesized Schiff base flame retardant monomer NBA(n)PET showed improved properties in cross-linking temperature, poly-condensation time, and thermal stability, with wider potential applications.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Agricultural Engineering
Jinfeng Li, Wei Jiang
Summary: A novel flame retardant containing high amounts of P and N elements was designed and grafted onto cotton fabric via P-O-C covalent bonds, showing improved flame retardancy and durability. The treated cotton exhibited lower peak heat release rate, total heat release, and initial decomposition temperatures, as well as increased carbon residue during combustion, indicating the formation of an expanded char layer. Various spectroscopic techniques confirmed the flame retardant mechanism, and the mechanical properties of the treated cotton remained suitable for use after treatment.
INDUSTRIAL CROPS AND PRODUCTS
(2021)