Study on Preparation and Filtration Effect of Plant Polysaccharide Aerogel Filter Rod

Environmental friendly and biodegradable plant polysaccharide aerogel filter rods were prepared, and their degradation rate and influence rule under different environmental conditions were investigated. Micro morphology observation and mechanical properties research were carried out. The results showed that Konjac Glucomannan (KGM) had a significant effect on the micro morphology of gelatin aerogel. When KGM was added, the structure of aerogel changed obviously, and the pore size decreased and better pore structure appeared. The optimal ratio of KGM and gelatin is 1:2. The filtration efficiency of K1G2 aerogel is 45.35% for particles with a particle size of 0.3 μm and above. With the increase of particle size, the filtration efficiency of aerogel for particles increases. The filtration resistance is 30 Pa. The permeability of K1G2 aerogel is better.