文献类型：期刊文献

英文题名：Synthesis of a novel P/N/Si-containing bio-based flame retardant for fire-safe, tough, and low-dielectric epoxy resin

作者：Ai, Jixiang Wei, Lanlan Wu, Xiao Deng, Rong Guo, Jianbing Zhou, Ying Liu, Shan Qin, Shuhao Wang, Hao

第一作者：Ai, Jixiang

通信作者：Zhou, Y[1];Liu, S[2];Qin, SH[3]

机构：[1]Guizhou Inst Mat Ind Technol, Guiyang 550014, Peoples R China;[2]Guizhou Inst Technol, Coll Mat & Energy Engn, Guiyang 550003, Peoples R China;[3]Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China;[4]Univ Southern Queensland, Ctr Future Mat, Sch Agr & Environm Sci, Springfield, Qld 4300, Australia

第一机构：Guizhou Inst Mat Ind Technol, Guiyang 550014, Peoples R China

通信机构：corresponding author), Guizhou Inst Mat Ind Technol, Guiyang 550014, Peoples R China;corresponding author), Guizhou Inst Technol, Coll Mat & Energy Engn, Guiyang 550003, Peoples R China;corresponding author), Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China.|贵州理工学院;

年份：2025

卷号：47

外文期刊名：MATERIALS TODAY CHEMISTRY

收录：;EI(收录号：20252318543657);Scopus(收录号：2-s2.0-105007060946);WOS:【SCI-EXPANDED(收录号:WOS:001517251100001)】；

基金：The authors acknowledge financial support from the National Natural Science Foundation of China (Grant No. 52163011, No. 52263007) , the Youth Talent Program of Guizhou Education Department (Qianjiaoji [2024] 338) , the Science and Technology Project of Guizhou Province (QianKeHe Chengguo [2024] General 143, QianKeHe ZhiCheng [2023] General 146, QianKeHe ZhongYinDi [2023] 035, QianKeHe FuQi [2024] 002-1, QianKeHe FuQi [2023] 001, No. ZK2023-Normal 160) .

语种：英文

外文关键词：Epoxy resin; Flame retardant; Mechanical properties; Dielectric properties; Vanillin

摘要：Epoxy resin (EP) exhibits outstanding strength, rigidity, chemical stability, and adhesive ability, making it widely used in the field of engineering and daily life. Nevertheless, the inherent flammability and limited toughness of EP restrict its applications. To solve these problems, a novel flame retardant (VDSiNP) with flexible chains and rigid functional groups containing P/N/Si elements was synthesized in this work using vanillin, a bio-derived precursor. The integration of VDSiNP effectively improved the flame resistance and toughness while simultaneously decreasing the dielectric characteristics of EP. Due to the combined effects of free radical scavenging and increased residual formation, the modified EP reached UL-94 V-0 rating and a limiting oxygen index of 34.3 %, the total heat release (THR) and peak heat release rate (PHRR) were also decreased by 29.7 % and 25.9 %. In addition, the notched impact strength of EP/VDSiNP composite soared from 6.86 kJ/m2 to 18.61 kJ/m2, an increase of 171.43 % compared with pure EP. Moreover, the dielectric constant of the EP composite was reduced by 25.3 %, which is essential for applications in the electronics industry. The remarkable overall performance is ascribed to the unique structure of VDSiNP with flexible chains connected by Si-O and Si-C, and the addition of aromatic rings and-NH groups. This study proposes a simple and universal method for synthesizing VDSiNP, and obtains flame-retardant, tough, and low-dielectric EP composites, expanding the application scope of EP.