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| Modification of filter rods for heatnotburn tobacco by three watersoluble polymers |
1. Key Laboratory of Combustion and Pyrolysis Study of CNTC, China Tobacco Anhui Industrial Co., Ltd., Hefei, Anhui 230088, China; 2. School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China; 3. Shuangwei Eastman Fiber Co., Ltd., Hefei, Anhui 230601, China
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Abstract To reduce the harmful substances in cigarette, three kinds of watersoluble polymers were selected to modify the filter rods of heatnotburn tobaccos by dipping and freezedrying technology. The three polymers of sodium alginate (SA), polyvinyl alcohol (PVA) and polyethylene glycol (PEG) with different contents were loaded onto the filter rods. The modification effects of the composite filters were evaluated through SEM, suction resistance, CO content, nicotine content, total particulate matter content and tar rejection rate. The results show that the filter rods modified by PEG2 has the best comprehensive performance with little increased suction resistance. The tar content in the flue gas of PEG2 modified filter rods is reduced by 183%, and the total particulate matter content is decreased by 15.62%.
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