加热不燃烧制品与传统卷烟再造烟叶物理特性及化学成分差异分析

采用物理化学指标检验，热裂解仪、纤维形态分析、扫描电镜、热重分析以及X射线光电子能谱仪对加热不燃烧烟草制品JK和传统再造烟叶KY-5进行了全面的分析比较。结果表明:① JK定量高，KY-5厚度、松厚度及灰分都高；② JK正反两面均无明显的纤维状成分，主要成分是烟末，结构紧密；KY-5透气性很好，结构也较疏松；③元素分析上两者组成成分并没有明显差异，只是含量有所不同；④ JK总植物碱明显高于KY-5，钾、氯含量低于KY-5；⑤ JK在近200℃处出现失重峰，结合产品特性及裂解产物分析可以得出，主要是醇类物质加热挥发结果。 

Difference analysis on physical characteristics and chemical components of reconstituted tobacco used in traditional cigarettes and heat not burn tobacco products

In order to analyze differences of reconstituted tobacco used in heat not burn tobacco product JK and traditional tobacco KY-5, both physical and chemical indicators were tested with PY-GC/MS, fiber morphology analysis, SEM, TG analysis and XPS. Results showed that:① JK was high in quantity while KY-5 was high in thickness, bulk and ash content; ② Air permeability of KY-5 was good due to its loose structure. No noticeable fiber was found on both sides of JK as the main component of JK was powder with a compact structures; ③ No obvious differences were found on their composition with XPS analysis, but they differed in terms of level of content. ④ Compared with KY-5, the content of total alkaloids was much higher in JK, while the content of chlorine and potassium was lower; ⑤ Both product features and PY-GC/MS result indicated that the weight loss of JK at 200℃ could be attributed to volatilization of alcohols.