A strategy to synthesize phosphorus-containing nickel phyllosilicate whiskers to enhance the flame retardancy of epoxy composites with excellent mechanical and dry-friction properties  

作　　者：Shibin Nie Zongquan Zhao Yuxuan Xu Wei He Wenli Zhai Jinian Yang 

机构地区：[1]School of Public Security and Emergency Management,Anhui University of Science and Technology,Hefei,231131,China [2]School of Safety Science and Engineering,Anhui University of Science and Technology,Huainan,232001,China [3]School of Materials Science and Engineering,Anhui University of Science and Technology,Huainan,232001,China [4]Institute of Energy,Hefei Comprehensive National Science Center,Hefei,230000,China

出　　处：《Frontiers of Chemical Science and Engineering》2024年第3期39-50,共12页化学科学与工程前沿（英文版）

基　　金：Youth Scientific Research Project in Anhui Province(Grant No.2022AH020055);the Key Research and Development Projects in Anhui Province(Grant Nos.2022i01020016,2023g07020001);the National Natural Science Foundation of China(Grant No.52074011);the University Synergy innovation Program of Anhui Province(Grant No.GXXT-2022-018).

摘　　要：To enhance the fire safety and wear resistance of epoxy,phosphorus-containing nickel phyllosilicate whiskers(FP-NiPS)were synthesized using a facile hydrothermal technology,with 9,10-dihydro-9-oxa-10-phosphaphenanthrene as the organic modifier.The impacts of FP-NiPS on the thermal stability,flame retardancy,and mechanical and tribological properties of EP composites were explored.The findings demonstrated that 5 wt%FP-NiPS elevated the limiting oxygen index of the EP composite from 23.8%to 28.4%,achieving a V-0 rating during vertical burning tests.FP-NiPS could enhance the thermal stability of epoxy resin(EP)and facilitate the development of a dense and continuous carbon layer,thereby significantly improving the fire safety of the EP composites.The FP-NiPS led to an 8.2%increase in the tensile strength and a 38.8%increase in the elastic modulus of the EP composite,showing outstanding mechanical properties.Furthermore,FP-NiPS showed remarkable potential in enhancing the wear resistance of EP.The wear rate of 1 wt%FP-NiPS is 2.34×10^(−5) mm^(3)·N^(−1)·m^(−1),a decrease of 66.7%compared to EP.This work provides a novel promising modification method to enhance the fire safety,mechanical and wear resistance properties of EP.

关 键 词：nickel phyllosilicate epoxy resin flame retardant wear resistance mechanical property 

分 类 号：TB33[一般工业技术—材料科学与工程]