摘要
为研究汽车空气滤清器滤芯用过滤材料在使用前后的结构变化以及杂质颗粒对其性能的影响,收集了1组规格相同的使用前后的汽车空气滤清器并且取下过滤材料,分别采用SEM、FT-IR、DTA、TG分析过滤材料在使用前后的内部结构变化。同时,研究过滤材料在使用前后的面密度、厚度、透气率、断裂强力及伸长、平均孔径、最大孔径、过滤精度、压降流量的变化情况。结果表明,过滤材料在使用前后的结构及性能均有显著变化,杂质颗粒的存在会对过滤材料的内部结构、物理性能以及过滤性能产生影响。在此基础之上,开发了3种不同的新过滤材料并且将其性能进行比较。
This paper is mainly regarding to the structure and performance change of automobile air filter and its two different stage of filtration material before filtration and after filtration. With the purpose of experiment is to research the influence of impurity particles on filtration property. Firstly a group of same automobile air filters are collected from market and the filtration material is taken off, then SEM, FT - IR, DTA and TG are adopted to analyze the internal structure, respectively. Meanwhile, other instruments were applied to characterize the performance change of this two different filtration materials, for instance, the weight, thickness, air permeability, breaking strength and elongation, average pore diameter, maximum pore diameter, filtration accuracy and the changes of flow and pressure drop. The results shown that there is an obvious difference between structure and performance of the new filtration material and used material. The deposition of impurity particles on internal pore space surface pore space of filtration material has an important influence on internal structure, physical property and filtration property. And the main purpose is to develop the new filtration materials and to make a deep comparison of filtration properties among them.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2013年第6期58-66,共9页
Journal of Textile Research
关键词
汽车空气滤清器
过滤材料
内部结构
物理性能
automobile air filter
filtration material
structure
physical property
