滤嘴通风率对加热卷烟气溶胶主要成分释放量的影响

Effects of filter ventilation rate on releases of main aerosol components from heated tobacco products

为研究滤嘴通风率对加热卷烟气溶胶主要成分释放量的影响,制备了不同滤嘴通风率及打孔位置的加热卷烟烟支,并测定了气溶胶中烟碱、水分和丙三醇的捕集量及滤嘴中的截留量。结果表明:①随滤嘴通风率增加,气溶胶烟碱、水分捕集量呈降低-升高(70%~75%滤嘴通风率时达到峰值)-降低的变化趋势;气溶胶丙三醇捕集量呈升高(70%滤嘴通风率时达到峰值)-降低的变化趋势。②随滤嘴通风率增加,滤嘴中烟碱、水分截留量呈降低-升高-降低或降低-升高的变化趋势,滤嘴通风率70%左右截留量最低;滤嘴中丙三醇截留量呈降低-稳定的变化趋势,在70%滤嘴通风率时截留量最低,且滤嘴中丙三醇截留量远大于气溶胶捕集量。③流经烟丝段气流体积约为11 mL时(80%滤嘴通风率),单位气流体积中主要成分捕集量较高;流经烟丝段气流体积约为16.5 mL时(70%滤嘴通风率),单位气流体积中主要成分截留量较低。④打孔位置远离唇端有利于增加气溶胶主要成分的捕集量,同时有利于降低滤嘴中主要成分的截留量。⑤滤嘴通风率、打孔位置对气溶胶主要成分捕集量均有显著影响,且两者间存在显著交互效应;滤嘴通风率对气溶胶中主要成分捕集量的影响程度大于打孔位置。

To study the effects of filter ventilation rate on the releases of main aerosol components from heated tobacco products,heated tobacco stick samples with different filter ventilation rates and perforation locations were prepared,and the aerosol collected masses of nicotine,moisture,glycerol and their retention amounts in the filter were determined.The results showed that:(1)With increasing filter ventilation rate,the aerosol collected masses of nicotine and moisture initially decreased,then increased and peaked at the filter ventilation rate of 70%-75%before decreasing again.The aerosol collected mass of glycerol increased and peaked at the filter ventilation rate of 70%and then decreased.(2)With increasing filter ventilation rate,the amount of nicotine retained in the filter showed a decreasing-increasing-decreasing trend,that of moisture first decreased and then increased,and that of glycerol first decreased and then remained stable.The amounts of nicotine,moisture and glycerol retained in the filter were the lowest at the filter ventilation rate of 70%,and the amount of glycerol retained in the filter was much higher than its aerosol collected mass.(3)When the airflow volume through the tobacco section was about 11 mL(the filter ventilation rate of 80%),the collected masses of main components per unit airflow volume were higher.When the airflow volume through the tobacco section was about 16.5 mL(the filter ventilation rate of 70%),the retained amounts of main components per unit airflow volume were lower.(4)A longer distance between the perforation locations and the mouth end was conducive to increasing the aerosol collected masses of the main components and reducing the retention amounts of main components in the filter.(5)Filter ventilation rate and perforation location significantly affected the aerosol collected masses of the main components with a significant interaction between them,and the influence degrees of filter ventilation rate were greater than those of perforation location.