采用热重分析法（TG）、微分热重（DTG）以及差示扫描量热法（DSC）对不同钾盐用量下的烟草薄片纸基的热解行为进行了研究，结果表明钾盐的添加量从0.5%增加到2.5%，烟草薄片纸基的最大失重起始温度点和最大失重峰温逐渐下降，钾盐添加量为2.5%时，烟草薄片纸基的最大失重起始温度点和最大失重峰温分别由290.1 ℃、346.3 ℃下降到262.4 ℃、328.2 ℃。同时，添加不同钾盐含量的薄片纸基DSC曲线表明，加入适量的钾盐，使薄片纸基的热量分批释放，降低燃烧的温度。

Reconstituted tobacco paper-base, with different dosage of citric acid potassium were characterized by thermogravimetry (TG), derivative thermogravimetry (DTG) and differential scanning calorimetry (DSC) thermal analysis technology. The result showed potassium dosage increased from 0.5% to 2.5%. The initial weight loss temperature of reconstituted tobacco paper-baseas and reconstituted tobacco paper-base temperature with maximum weight loss decreased gradually, when potassium dosage was 2.5%,. The above two temperatures of reconstituted tobacco paper-base respectively decreased from 290.1 ℃, 346.3 ℃to 262.4 ℃, 328.2 ℃, respectively. At the same time, the curves of DSC showed that addition of suitable amount of potassium caused partial release of the quantity of heat of the reconstituted tobacco paper-base and reduce the burning temperature.

基金项目：广东中烟工业有限责任公司技术中心项目（粤烟工05XM-QK 【2010】034）