摘要
采用基片涂载法制备蒙脱石—壳聚糖—聚磷酸铵三元膨胀阻燃薄片,研究三元膨胀阻燃材料对烟草薄片燃烧热解特性的影响。结果显示:蒙脱石三元阻燃薄片的总热释放量(降低率56.1%)和最大热释放速率(降低率42.8%)明显低于二元阻燃薄片和对照薄片,三元阻燃涂层促使薄片的热解温度向高温区移动,延缓了薄片主要成分的热解,最终850℃焦炭量显著增加。此外,对于三元阻燃薄片烟支,不仅感官评吸质量优于对照样,卷烟燃烧锥最高温度也下降了39.0℃。
Reconstituted tobacco sheet(RTS)was first modified by ternary intumescent flame retardant(IFR)coating,composed of chitosan(CS),ammonium polyphosphate(APP),and montmorillonite(MMT)by basepaper coating techniques.The effects of composite coating on the combustion behavior and thermal degradation of RTS were studied by micro-scale combustion calorimetry(MCC)and TG-FTIR.MCC experiments confirmed that the CS-APP-MMT-RTS exhibited a 56.1%reduction in total heat release and a 42.8%reduction in peak heat release rate,relative to the uncoated RTS.TG-FTIR results showed that CS-APP-MMT coating reduced the maximum mass loss rate and the release of harmful gaseous products at the stage of char decomposition.Moreover,for CS-APP-MMT-RTS cigarette,the highest temperature of burning cone decreased by 39.0℃,thus demonstrating the high reduction of temperature and flammability.
作者
李东亮
耿宗泽
谭兰兰
蔡芯玥
邵宁
侯丽
屈亚晴
朱晓兰
LI Dong-liang;GEN Zong-ze;TAN Lan-lan;CAI Xin-yue;SHAO Ning;HOU Li;QU Ya-qing;ZHU Xiao-lan(Technology Center,China Tobacco Sichuan Industrial Co.,Ltd.,Key Laboratory for Harmful Components and Tar Reduction in Cigarette of Sichuan Province,Chengdu,Sichuan 610066,China;Research Center of Tobacco and Health,University of Science and Technology of China,Hefei,Anhui 230052,China)
出处
《食品与机械》
北大核心
2020年第3期54-59,共6页
Food and Machinery
基金
四川中烟工业公司宽窄“润甜香”品类构建重大专项项目(编号:rtx201817)。
关键词
烟草薄片
蒙脱石
热重红外联用
燃烧热解
膨胀阻燃
reconstituted tobacco sheet
montmorillonite
TG-FTIR
combustion and thermal degradation
flame retardants
作者简介
李东亮,男,四川中烟工业公司研究员,博士;通信作者:朱晓兰(1972-),女,中国科学技术大学副研究员,博士。E-mail:zxl8906@ustc.edu.cn;通信作者:谭兰兰(1977-),女,四川中烟工业公司高级工程师,硕士。E-mail:lucya37@163.com。
