Nicotine Loading MOF@BC Preparation of Composite Materials and Their Application in Heating Cigarette Flakes
In this paper,a new metal-organic framework(MOF)material was prepared with β-cyclodextrin(β-CD)and NaOH as raw materi-als,and the β-CD-MOF@BC composite was obtained by in-situ modification of bacterial cellulose(BC)with the MOF material.A systemat-ic analysis was conducted on the composite materials from the aspects of microstructure,nicotine release performance,and thermal decom-position aroma products using scanning electron microscopy,X-ray diffraction,thermogravimetric experiments,thermal decomposition,and thermal desorption.The results showed that nicotine-loaded MOF materials with abundant pore sizes could be prepared by the new method proposed in this study.Theβ-CD-MOF materials were embedded in the BC fiber mesh,indicating that the MOF materials successfully modi-fied BC to form a composite material.The maximum weight loss stage temperature of the β-CD-MOF@BC composite material was delayed by 44 ℃ compared to the blank BC material,and the nicotine release in-creased by 5.8 percentage points with a time delay of 1.055 min.The load capacity of the composite was better than that of blank BC materi-al,and it had a certain slow release property.Thermal desorption ofβ-CD-MOF@BC composite materials released up to 20 types of aroma components,which was beneficial for improving the sensory quality of food intake.
heat-not-burn cigarettesnew tobacco sheetsnicotine sustained-releasebacterial cellulose MOF composite material
万方数据
维普
