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1.中国科学技术大学,火灾科学国家重点实验室,合肥 230026
2.中国科学技术大学,合肥微尺度物质科学国家研究中心,合肥 230026
[ "丁延伟,男,1975年生. 中国科学技术大学合肥微尺度物质科学国家研究中心教授级高级工程师. 本科毕业于曲阜师范大学,硕士和博士毕业于中国科学技术大学(2002年和2009年). 自2002年开始从事热分析与吸附技术的分析测试、实验方法研究等工作,现任中国化学会化学热力学与热分析专业委员会委员、全国教育装备标准化委员会化学分委会委员、中国分析测试协会青年学术委员会委员. 曾获中国分析测试协会科学技术奖(CAIA奖)二等奖,主持修订教育行业标准《热分析方法通则》(JY/T 0589.1~4-2020),以主要作者发表SCI论文30余篇,获授权专利7项. 编著《热分析基础》《热分析实验方案设计与曲线解析概论》." ]
纸质出版日期:2022-02-20,
网络出版日期:2021-12-22,
收稿日期:2021-08-03,
修回日期:2021-10-18,
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谢启源,陈丹丹,丁延伟.热重分析技术及其在高分子表征中的应用[J].高分子学报,2022,53(02):193-210.
Xie Qi-yuan,Chen Dan-dan,Ding Yan-wei.Thermogravimetric Analysis and Its Applications in Polymer Characterization[J].ACTA POLYMERICA SINICA,2022,53(02):193-210.
谢启源,陈丹丹,丁延伟.热重分析技术及其在高分子表征中的应用[J].高分子学报,2022,53(02):193-210. DOI: 10.11777/j.issn1000-3304.2021.21210.
Xie Qi-yuan,Chen Dan-dan,Ding Yan-wei.Thermogravimetric Analysis and Its Applications in Polymer Characterization[J].ACTA POLYMERICA SINICA,2022,53(02):193-210. DOI: 10.11777/j.issn1000-3304.2021.21210.
热重分析技术(TGA)是在程序控制温度和设定气氛下表征材料受热过程中的质量随温度或时间变化的高精度研究工具,具有重复性好、灵敏度高和热过程控制精准等优点. 近年来,TGA技术在高分子材料领域得到了广泛应用,促进了高分子材料热稳定性、组成分析以及热分解机理等材料细观热响应特性的深入研究. 本文分别从热重分析基本原理、仪器校准、实验方案设计、实验操作、热重曲线综合解析以及各环节中易出现的不当操作、异常数据与解决方案等方面进行阐述,并给出了在高分子科学研究领域中的典型应用案例、未来发展趋势及机遇与挑战. 在实际应用中,基于TGA与傅里叶红外光谱(FTIR)、示差扫描量热法(DSC)、气相色谱-质谱联用(GC/MS)等技术的联用分析,将有利于进一步揭示高分子材料在不同气氛和热激励等条件下的详细热响应信息,为性能优异的新型高分子材料研发与设计、热解机理及燃烧蔓延动力学等领域提供支撑和指导.
Thermogravimetric analysis (TGA) is an efficient research tool that characterizes the weight of materials with temperature or time under a program controlled temperature and a certain atmosphere. One of its advantages is that the TGA results can be well repeated with high sensitivity. In addition
its heating process is accurately and flexibly controlled according to real thermal environment of samples. In recent years
TGA is popularly used in the field of polymer materials
which promotes the detailed analyses on their thermal stability
composition analysis and thermal decomposition mechanism
et al
. This review covers many aspects of TGA
including basic principles
calibration
scheme design
curve analysis
as well as those common errors during sample preparation and experiments
abnormal data figuring and the solution to them. Additionally
the typical application cases of TGA in polymer science
as well as their opportunity and challenges in future
are also presented. In the applications of TGA technology
more information about the thermal-response behavior of polymers under different atmosphere and heating conditions could be revealed by TGA coupled with FTIR
DSC
GC/MS technologies. In this case
not only the weight information of sample during a specific heating condition
but also the endothermic and exothermic behaviors
released gas components at the same time can be analyzed together. They are helpful for new polymer design
thermal decomposition mechanism and flame sprea
d models development.
热重分析技术曲线解析热稳定性热解机理案例分析
Thermogravimetric analysisCurve analysisThermal stabilityThermal decomposition mechanismCase analysis
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