| TG-FTIR联用研究HnB烟草基质在400℃以下的热解特性和气相产物 |
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| 引用本文： | 艾明欢,杨菁,沈轶,赵文涛.TG-FTIR联用研究HnB烟草基质在400℃以下的热解特性和气相产物[J].中国烟草学报,2020,26(1):8-14. |
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| 作者姓名： | 艾明欢 杨菁 沈轶 赵文涛 |
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| 作者单位： | 1.上海新型烟草制品研究院, 上海市大连路789号 200082 |
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| 基金项目： | 上海新型烟草制品研究院有限公司科技项目“棒状烟媒生产工艺技术研究”(KF2018-001G) |
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| 摘 要： | 目的 明确加热不燃烧（HnB）烟草基质热解特性和气相产物释放情况。 方法 采用热重-红外联用分析仪（TGFTIR），在100 mL/min的空气流量和20℃/min的升温速率条件下，测试了甘油含量0~30%的烟草基质的热失重、气态产物组成随温度（30℃~400℃）的变化规律。 结果 ① 烟草基质主要的失重阶段处于130℃~360℃之间，该温度区间的失重速率极大值点有2个，1个处于200℃~235℃之间，另1个处于297℃~310℃之间。②烟草基质甘油含量在20%~30%时，150℃即释放出易挥发小分子，如:烟碱、碳水化合物、酚类和有机酸类、烷烃和烯烃类化合物等；甘油含量在0~10%时，200℃以上这些物质才会出现。③在4个失重阶段的失重速率极大值点附近温度下（100℃、200℃、300℃和400℃），甘油含量对受热释放物中各类成分的比例产生了影响。 结论 上述规律可以为加热不燃烧卷烟的温度设计和烟草基质的甘油含量选择提供参考。
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| 关 键 词： | TG-FTIR 烟草基质 加热不燃烧烟草制品 受热释放物 |
| 收稿时间： | 2019-05-23 |
Study on pyrolysis characteristics and gas phase pyrolytic products of HnB tobacco substrates at temperatures below 400℃ by TG-FTIR |
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| AI Minghuan,YANG Jing,SHEN Yi,ZHAO Wentao.Study on pyrolysis characteristics and gas phase pyrolytic products of HnB tobacco substrates at temperatures below 400℃ by TG-FTIR[J].Acta Tabacaria Sinica,2020,26(1):8-14. |
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| Authors: | AI Minghuan YANG Jing SHEN Yi ZHAO Wentao |
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| Affiliation: | 1.Shanghai New Tobacco Product Research Institute, Shanghai 200082, China2.Shanghai New Tobacco Product Research Institute Limited Company, Shanghai 200082, China |
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| Abstract: | Objective]In order to clarify pyrolysis characteristics and release of gaseous products of heating non-combustion(HnB)tobacco substrates.Method]The thermogravimetric-infrared spectrometer(TG-FTIR)was used to measure thermogravimetric data and investigatethe variation of gaseous product composition with temperature(30~400℃)of tobacco substrates with 0~30%glycerol content at air flow rate of 100 mL/min and by heating rate of 20℃/min.Result](1)the main weightlessness stage of tobacco substrates was between 130℃ and 360℃,and there were two maximum weightlessness rate points within this temperature range,one was between 200℃ and 235℃ and the other was between 297℃ and 310℃.(2)When the glycerin content is between 20% and 30%,volatile small molecules such as nicotine,carbohydrates,phenols and organic acids,alkanes and olefins are released at 150℃;the glycerin content is 0%~At 10%,these substances will appear above 200℃.(3)At temperatures near the maximum point of weight loss rate in the four weight loss stages(100℃,200℃,300℃,and 400℃),the glycerol content has an effect on the proportion of various components in the heat release.Conclusion]The above rule can provide reference for the temperature design of HnB cigarettes and the selection of glycerin content of tobacco substrates. |
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| Keywords: | TG-FTIR tobacco substrates HnB tobacco product release products during heating |
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