改性纤维素纸沟槽滤棒选择性降低卷烟烟气中的苯酚

制备了聚乙二醇/乙酰丙酸/三甘醇二乙酸酯改性纤维素纸沟槽滤棒卷烟,考察了改性剂对烟气焦油和苯酚释放量的影响。结果表明:①涂布量为(6.0±0.5)g/m2时,改性剂以单种或是以复配方式对纤维素纸改性,均对烟气苯酚具有高选择性降低效率。其中,乙酰丙酸改性沟槽滤棒卷烟样品较好地保持了卷烟原有的风格吸味。②随着改性剂在纤维素纸上涂布量的增加,对烟气苯酚的选择性降低效果增大;涂布量为(9.0±0.5)g/m2的卷烟样品存放2个月后,改性剂对烟气苯酚的选择性降低效果仍保持稳定且较高的水平。③纤维素纸上涂布(9.0±0.5)g/m2乙酰丙酸时,烟气苯酚释放量下降33.31%,焦油释放量下降2.61%,烟气苯酚的选择性降低率为30.7%,改性剂对苯酚的选择性降低效果显著;卷烟烟气体外毒理学检测结果表明,纤维素纸上涂布乙酰丙酸有利于降低卷烟的危害性。乙酰丙酸改性纤维素纸沟槽滤棒是一种非常有效的选择性减害手段。

Selective Removal of Phenol from Cigarette Smoke by Grooved Filter Plug with Modified Cellulose Wrapper

The samples of cigarette attached with grooved filter plug were prepared,the plug wrapper was made of cellulose modified by polyethylene glycol/acetylpropionic acid/triethylene-glycol diacetate.The effects of the said cellulose modifiers on the deliveries of tar and phenol from cigarette smoke were studied.The results showed that: 1) In the case that the coating rate of modifiers was of(6.0±0.5)g/m2,the modified cellulose wrapper had high efficiency for selective removal of phenol from cigarette smoke no matter whether its cellulose was modified by single modifier or their mixture.The sensory assessment of cigarette indicated that the taste and style of cigarette attached with grooved filter plug wrapper made of cellulose modified by acetylpropionic acid were pretty well preserved.2) The removal efficency increased with the increase of modifier coating rate on the cellulose wrapper,furthermore,the high phenol removal efficiency would maintain for at least 2 months in the case that the coating rate of modifiers was of(9.0±0.5)g/m2.3) In the case that the coating rate of acetylpropionic acid was of(9.0±0.5)g/m2,the phenol removal rate was up to 33.31%,while tar delivery only reduced by 2.61%,the selective removal rate of phenol was 30.7%.In addition,in vitro toxicology tests of cigarette smoke indicated that acetylpropionic acid coating benefited to the reduction of health tisk of smoking.