纳米纤维素在造纸法再造烟叶基片中的应用  

Application of nanocellulose in paper-making reconstituted tobacco substrate

作　　者：白家峰[1] 梁永伟 刘远上 胡志忠[1] 刘鸿[1] 宁振兴[1] 熊亚妹 许春平[2] BAI Jia-feng;LIANG Yong-wei;LIU Yuan-shang;HU Zhi-zhong;LIU Hong;NING Zhen-xing;XIONG Ya-mei;XU Chun-ping(Technical Center of China Tobacco Guangxi Industrial Co.,Ltd.,Nanning 530001,China;College of Tobacco Science and Engineering,Zhengzhou University of Light Industry,Zhengzhou 450000,China;China Tobacco Hebei Industrial Co.,Ltd.,Shijiazhuang 050000,China)

机构地区：[1]广西中烟工业有限责任公司技术中心,南宁530001 [2]郑州轻工业学院烟草科学与工程学院,郑州450000 [3]河北中烟工业有限责任公司,石家庄050000

出　　处：《湖北农业科学》2024年第6期161-166,共6页Hubei Agricultural Sciences

基　　金：河南省重大科技专项(231100310200);河南省科技创新团队计划项目(20IRTSTHN022)。

摘　　要：为提高再造烟叶的物理性能,使用2种纳米纤维素(纤维素纳米晶须CNC和纤维素纳米纤丝CNF)替代部分木桨纤维,比较其对再造烟叶松厚度、抗张强度的影响,选择添加效果较好的纤维素纤丝,然后考察其不同添加量对再造烟叶松厚度、抗张强度、热解性能的影响,最后研究纳米纤维素的添加对再造烟叶主流烟气粒相物成分的影响。结果表明,在同一木浆纤维添加量下,添加CNF对再造烟叶抗张强度的提升效果强于CNC,且两者的添加对再造烟叶松厚度均无显著影响;在烟草浆料中添加CNF可以有效提高再造烟叶基片的抗张强度,随着CNF添加量的增加,造纸法再造烟叶基片的抗张强度随之增大;再造烟叶的热稳定性随CNF添加量的增加而增强,质量损失达到5%时温度(T-5%)、质量损失达到50%的温度(T-50%)和最终残渣量逐渐增加,而质量损失最大时温度(Tmax)未发生明显变化;添加少量CNF对再造烟叶主流烟气粒相物成分没有显著影响。CNF的添加可有效替代部分木浆纤维,从而降低木浆纤维的添加量,在提升再造烟叶抗张强度的同时,还提高了烟草薄片的热稳定性,为开发一种满足加工工艺需求的新型再造烟叶提供新思路。In order to improve the physical properties of the reconstituted tobacco,two kinds of nanocellulose(cellulose naonocrystals,CNC and cellulose nanofibril,CNF)were used to replace part of wood pulp fiber,respectively.The effects of nanocellulose on the bulk and tensile strength of reconstructed tobacco were compared,and the better effective cellulose fiber was selected to investigate the effects of nanocellulose with different additions on the bulk,tensile strength and pyrolytic properties of reconstructed tobacco.Then the effects of nanocellulose on particulate composition in the mainstream smoke of reconstructed tobacco were studied.The results showed that under the same wood pulp fiber supplemental amount,the effect of adding CNF on improving the tensile strength of reconstituted tobacco was stronger than that of CNC,and both additions had no significant effect on the bulk of reconstituted tobacco.Adding CNF to the tobacco slurry could effectively increase the tensile strength of the reconstituted tobacco substrate.With the increase of the amount of CNF,the tensile strength of the reconstituted tobacco increased.The thermal stability of the reconstituted tobacco increased with the increase of the amount of CNF,T-5%,T-50%and the final residue increased gradually,but the Tmaxdid not change significantly.The addition of small CNF had no significant effect on the composition of the mainstream smoke particles in the reconstructed tobacco.The addition of CNF could effectively replace part of wood pulp fiber,thus reducing the amount of wood pulp fiber,improving the tensile strength of reconstituted tobacco,and also improving the thermal stability of reconstituted tobacco,which provided a new idea for the development of new reconstituted tobacco to meet the requirements of processing technology.

关 键 词：纳米纤维素 再造烟叶 松厚度 抗张强度 热解性能 粒相物 

分 类 号：TS452.6[农业科学—烟草工业]