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Development of Filter Pad for Heat Not Burn (HNB) E-cigarette Smoke Composition Analysis
Received:September 01, 2021  
DOI：10.11980/j.issn.0254-508X.2022.03.009
Key Words:HNB e-cigarette  filter pad  filtration efficiency  filtration resistance  water absorption
Fund Project:国家重点研发计划：玻纤滤纸生产的智能管理系统和绿色工艺的开发（2017YFE0101500）。
Author NameAffiliationPostcode
LI Zheng China National Pulp and Paper Research Institute Co.， Ltd. ， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 		100102
WAN Ying China National Pulp and Paper Research Institute Co.， Ltd. ， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 		100102
DU Qi China National Pulp and Paper Research Institute Co.， Ltd. ， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 		100102
LIU Wen* China National Pulp and Paper Research Institute Co.， Ltd. ， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 		100102
YANG Yang China National Pulp and Paper Research Institute Co.， Ltd. ， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 		100102
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Abstract:A double-layer composite technology of filter layer and water absorption layer was studied to prepare the filter pad for analyzing the flue gas composition of HNB e-cigarette. The experimental results showed that the water absorption of the filter pad was mainly determined by the basic weight of the pad. The types and proportion of fiber of filtration layer and absorption layer had little effect on water absorption. When the basic weight of the filter layer was 120 g/m2 and the basic weight of the water absorption layer was 300 g/m2， the water absorption of the filter pad could reach 1.94 g. The quantity of filter material， the type and proportion of fiber of water absorption layer all affect the filtration performance. With the increase of the quantity， the filtration efficiency increased， but the filtration resistance also increased. When 85% vinylon mixed 15% polyester for water absorbent layer， the filtration efficiency of the pad was 99.963% and the filtration resistance was 351 Pa. Under the premise of meeting the requirements of filtration performance and test performance in the testing process， the water absorption of this study could be increased nearly 1 time compared with the current general filter pad.
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