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

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Frontiers of Chemical Science and Engineering 2024年第3期18卷 39-50页

作者： shibin nie Zongquan Zhao Yuxuan Xu Wei He Wenli Zhai Jinian Yang School of Public Security and Emergency Management Anhui University of Science and TechnologyHefei231131China School of Safety Science and Engineering Anhui University of Science and TechnologyHuainan232001China School of Materials Science and Engineering Anhui University of Science and TechnologyHuainan232001China Institute of Energy Hefei Comprehensive National Science CenterHefei230000China

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

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Self-sacrificial templating synthesis of flower-like nickel phyllosilicates and its application as high-performance reinforcements in epoxy nanocomposites

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Frontiers of Chemical Science and Engineering 2022年第4期16卷 484-497页

作者： Jinian Yang Xuesong Feng shibin nie Yuxuan Xu Zhenyu Li School of Materials Science and Engineering State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal MinesAnhui University of Science and TechnologyHuainan 232001China School of Safety Science and Engineering State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal MinesAnhui University of Science and TechnologyHuainan 232001China

The nanocomposites of flower-like nickel phyllosilicate particles incorporated into epoxy resin were fabricated via an in-situ mixing process.The flower-like nickel phyllosilicate particles were firstly synthesized using a mild self-sacrificial templating method,and the morphology and lamellar structure were examined carefully.Several properties of mechanical,thermal and tribological responses of epoxy nanocomposites were performed.It was demonstrated that adequate flower-like nickel phyllosilicate particles dispersed well in the matrix,and the nanocomposites displayed enhanced tensile strength and elastic modulus but decreased elongation at break as expected.In addition,friction coefficient and wear rate were increased first and then decreased along with the particle content,and showed the lowest values at a mass fraction of 5%.Nevertheless,the incorporated flower-like nickel phyllosilicate particles resulted in the continuously increasing thermal stability of epoxy resin(EP)nanocomposites.This study revealed the giant potential of flower-like particles in preparing high-quality EP nanocomposites.

关键词： nickel phyllosilicate flow-like structure mechanical property thermal stability tribological performance

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Facile synthesis of polyaniline nanorods to simultaneously enhance the mechanical properties and wear resistance of epoxy composites

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化学科学与工程前沿:英文版 2023年第9期17卷 1254-1266页

作者： Liu Jiang Jinian Yang Jie Dong shibin nie Yuxuan Xu Xuesong Feng School of Materials Science and Engineering Anhui University of Science and TechnologyHuainan232001China School of Safety Science and Engineering Anhui University of Science and TechnologyHuainan232001China

To enhance the mechanical properties and wear resistance of epoxy resin,polyaniline nanorods were first synthesized using a facile route,and then introduced into the epoxy matrix to yield composites via solution mixing.Several measurements were conducted to investigate the phase structures and compositions of polyaniline nanorods,and their positive influences on the mechanical and tribological properties of epoxy resin were also characterized.The results confirmed that the as-synthesized polyaniline exhibited representative rod-like morphologies and dispersed well in the epoxy matrix,leading to significant enhancements in the tensile strength and elastic modulus of epoxy composites.The highest values of 110.33 MPa and 2.04 GPa were obtained by adding 5%-7%polyaniline nanorods,which were 43%and 62%higher than the pure sample,respectively.The wear rate was increased first and then decreased along with polyaniline nanorods,presenting the lowest value of 2.12×10^(−5) mm^(3)·Nm^(−1) by adding 5%filler,which was markedly reduced by ca.70%compared to the control sample.Finally,the possible wear mechanism was proposed and discussed in detail.This study tried to broaden the applications of polyaniline nanorods in the field of tribology.

关键词： epoxy resin polyaniline nanorods mechanical property tribological performance wear mechanism

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Molybdenum disulfide@nickel phyllosilicate hybrid for improving the flame retardancy and wear resistance of epoxy composites

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Frontiers of Chemical Science and Engineering 2023年第12期17卷 2114-2126页

作者： shibin nie Wei He Yuxuan Xu Wenli Zhai Hong Zhang Jinian Yang School of Public Security and Emergency Management Anhui University of Science and TechnologyHefei 231131China Institute of Energy Hefei Comprehensive National Science Center(Anhui Energy Laboratory)Hefei 230000China School of Safety Science and Engineering Anhui University of Science and TechnologyHuainan 232001China School of Materials Science and Engineering Anhui University of Science and TechnologyHuainan 232001China

In this study,nickel phyllosilicate was synthesized based on molybdenum disulfide(MoS2@NiPS)by the sol-gel method,and then MoS2@NiPS was used to prepare epoxy composites.The thermal stability,flame retardancy,and frictional performances of epoxy composites were studied.With the addition of 3 wt%MoS2@NiPS,the epoxy composite increased the limiting oxygen index from 23.8%to 26.1%and reduced the vertical burning time from 166 s for epoxy resin to 35 s.The residual char of the epoxy composite increased from 11.8 to 20.2 wt%.MoS2@NiPS promoted the graphitization of the residual char,and facilitated the formation of a dense and continuous char layer,thereby improving the fire safety of epoxy resin.The epoxy composite with 3 wt%MoS2@NiPS had excellent wear resistance property with a wear rate of 2.19×10^(‒5) mm^(3)·N^(-1)·m^(-1),which was 68.8%lower than that of epoxy resin.This study presented a practical approach to improve the frictional and fire resistance of epoxy composites.

关键词： molybdenum disulfide nickel phyllosilicate epoxy resin flame retardancy

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Nickel-based metal-organic framework-derived whisker-shaped nickel phyllosilicate toward efficiently enhanced mechanical,flammable and tribological properties of epoxy nanocomposites

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Frontiers of Chemical Science and Engineering 2022年第10期16卷 1493-1504页

作者： Yuxuan Xu Guanglong Dai shibin nie Jinian Yang Song Liu Hong Zhang Xiang Dong School of Safety Science and Engineering State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal MinesAnhui University of Science and TechnologyHuainan 232001China School of Materials Science and Engineering State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal MinesAnhui University of Science and TechnologyHuainan 232001China

Metal−organic framework-derived materials have attracted significant attention in the applications of functional materials.In this work,the rod-like nickel-based metal−organic frameworks were first synthesized and subsequently employed as the hard templates and nickel sources to prepare the whisker-shaped nickel phyllosilicate using a facile hydrothermal technology.Then,the nickel phyllosilicate whiskers were evaluated to enhance the mechanical,thermal,flammable,and tribological properties of epoxy resin.The results show that adequate nickel phyllosilicate whiskers can disperse well in the matrix,improving the tensile strength and elastic modulus by 13.6%and 56.4%,respectively.Although the addition of nickel phyllosilicate whiskers could not obtain any UL-94 ratings,it enhanced the difficulty in burning the resulted epoxy resin nanocomposites and considerably enhanced thermal stabilities.Additionally,it was demonstrated that such nickel phyllosilicate whiskers preferred to improve the wear resistance instead of the antifriction feature.Moreover,the wear rate of epoxy resin nanocomposites was reduced significantly by 80%for pure epoxy resin by adding 1 phr whiskers.The as-prepared nickel phyllosilicate whiskers proved to be promising reinforcements in preparing of high-performance epoxy resin nanocomposites.

关键词： metal−organic framework nickel phyllosilicate whisker epoxy resin mechanical response tribological performance flammable property

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Synthesis of hierarchical nanohybrid CNT@Ni-PS and its applications in enhancing the tribological,curing and thermal properties of epoxy nanocomposites

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Frontiers of Chemical Science and Engineering 2021年第5期15卷 1281-1295页

作者： Jinian Yang Yuxuan Xu Chang Su shibin nie Zhenyu Li School of Materials Science and Engineering Anhui University of Science and TechnologyHuainan232001China School of Energy Resources and Safety Anhui University of Science and TechnologyHuainan232001China School of Mechanical Engineering Anhui University of Science and TechnologyHuainan232001China

Poor interfacial adhesion and dispersity severely obstruct the continued development of carbon nanotube(CNT)-reinforced epoxy(EP)for potential applications.Herein,hierarchical CNT nanohybrids using nickel phyllosilicate(Ni-PS)as surface decorations(CNT@Ni-PS)were synthesized,and the nanocomposites derived from varied mass fractions of EP and CNT@Ni-PS were prepared.The morphological structures,tribological performances,curing behaviors and thermal properties of EP/CNT@Ni-PS nanocomposites were carefully investigated.Results show that hierarchical CNT nanohybrids with homogeneous dispersion and well-bonded interfacial adhesion in the matrix are successfully obtained,presenting significantly improved thermal and tribological properties.Moreover,analysis on cure kinetics proves the excellent promotion of CNT@Ni-PS on the non-isothermal curing process,lowering the curing energy barrier steadily.

关键词： nickel phyllosilicate surface decoration tribological property curing kinetics thermal performance

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低温-浸水复杂条件下催化燃烧式甲烷探测器响应特性

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清华大学学报（自然科学版） 2024年第6期64卷 965-974页

作者：何庆聂士斌张红刘小勇郭贤徐良骥安徽理工大学安全科学与工程学院淮南232001 合肥综合性国家科学中心能源研究院(安徽省能源实验室) 合肥230000 安徽理工大学公共安全与应急管理学院合肥231131 清华大学合肥公共安全研究院合肥230601

甲烷气体泄漏会导致火灾爆炸事故的发生,恶劣的环境条件(如低温和浸水)会影响甲烷泄漏的精准检测。该研究系统分析了浸水和低温-浸水复杂条件下催化燃烧式甲烷探测器的响应特性及其影响机制。研究结果表明:浸水会显著降低甲烷探测器的... 详细信息

甲烷气体泄漏会导致火灾爆炸事故的发生,恶劣的环境条件(如低温和浸水)会影响甲烷泄漏的精准检测。该研究系统分析了浸水和低温-浸水复杂条件下催化燃烧式甲烷探测器的响应特性及其影响机制。研究结果表明:浸水会显著降低甲烷探测器的灵敏度,浸水后探测器报警浓度增长90.3%。相比于室温浸水,低温-浸水使报警浓度降低23.3%,响应时间的重复性能提升,平均标准差降低65.16%。浸水后传感器表面的水膜会阻碍甲烷气体进入传感器内部,使得传感器内甲烷含量降低;浸水还会导致催化剂的比表面积降低和催化剂水中毒,减少了甲烷气体的吸附位点,因此浸水后探测器需要更高浓度的甲烷才能触发报警状态。低温环境下探测器铂丝加热器电阻变化更为显著,吸收较少的催化燃烧反应热就能达到报警所需的电阻变化量,降低了探测器报警所需的甲烷浓度,因此低温环境有效减弱了浸水对探测器的不利影响。该文为进一步研究低温-浸水复杂条件对甲烷探测器性能的影响提供了实验依据,有利于提高甲烷泄漏的精准检测。

关键词：甲烷泄漏甲烷探测器低温-浸水复杂条件报警浓度响应时间

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高校、科研院所、企业三方协同研究生基地建设构想——以安全科学与工程学科为例

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安徽理工大学学报（社会科学版） 2024年第1期26卷 98-102页

作者：李重情聂士斌安徽理工大学安全科学与工程学院安徽淮南232001 安徽理工大学深部煤矿采动响应与灾害防控国家重点实验室安徽淮南232001

在分析当前研究生招生形势基础上,从研究生内在成长、高校联动发展、科研院所和企业创新等方面阐述了协同培养基地成立内生动力来源,并以安全科学与工程学科为例,介绍了协同培养基地在人才协同培养、平台模式建设、师资队伍建设和长效... 详细信息

在分析当前研究生招生形势基础上,从研究生内在成长、高校联动发展、科研院所和企业创新等方面阐述了协同培养基地成立内生动力来源,并以安全科学与工程学科为例,介绍了协同培养基地在人才协同培养、平台模式建设、师资队伍建设和长效协同机制等方面的建设构想,旨在通过“1+2”培养模式和“2+3+N”建设模式进行研究生协同培养,构建安全科学与工程学科研究生高质量培养新路径。

关键词：协同培养基地建设研究生教育培养模式安全科学与工程

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城市公共安全人才培养的产学研协同策略

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科教导刊 2024年第6期 23-25页

作者：从伟聂士斌彭伟安徽理工大学深部煤矿采动响应与灾害防控国家重点实验室安徽淮南232001 安徽理工大学公共安全与应急管理学院安徽合肥231100

随着我国城市化进程的加速,城市公共安全面临的挑战日益增多,需要公共安全教育体系进行重大转型。文章以安徽理工大学为案例,分析了目前公共安全人才培养中存在的问题,探讨了产学研协同合作在人才培养中的应用,强调了跨学科知识融合与... 详细信息

随着我国城市化进程的加速,城市公共安全面临的挑战日益增多,需要公共安全教育体系进行重大转型。文章以安徽理工大学为案例,分析了目前公共安全人才培养中存在的问题,探讨了产学研协同合作在人才培养中的应用,强调了跨学科知识融合与创新的重要性,以及如何通过实践能力和创新意识的培养使学生更好地适应变化的社会和技术环境。通过深入分析具体实践案例,提供了解决现有挑战的切实可行方案,为提升城市公共安全治理水平提供了重要指导。

关键词：公共安全人才培养产学研协同创新实践

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Erratum to:Synthesis of hierarchical nanohybrid CNT@Ni-PS and its applications in enhancing the tribological,curing and thermal properties of epoxy nanocomposites

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Frontiers of Chemical Science and Engineering 2022年第10期16卷 1530-1530页

作者： Jinian Yang Yuxuan Xu Chang Su shibin nie Zhenyu Li School of Materials Science and Engineering Anhui University of Science and TechnologyHuainan 232001China School of Energy Resources and Safety Anhui University of Science and TechnologyHuainan 232001China School of Mechanical Engineering Anhui University of Science and TechnologyHuainan 232001China

Fig.7(a,a')on page 1289:It has come to our attention that the SEM picture of Fig.7(a,a')for the worn surface of pure EP are misused,because it has been reported in our previous work and was chosen accidentally to denote as the same control sample prepared using the exactly same procedure.The corrected Fig.7(a,a')is shown below.The data analysis,description and conclusion are not affected by this unintentional error.

关键词： thermal tribological conclusion

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