Using modified microcrystalline cellulose (MCC) and chitosan (CS) as raw materials,a kind of non catalytic and eco-friendly water absorbent material was prepared by vacuum freeze-drying.SEM,TGA,FT-IR and BET were used to characterize the structure of the water absorbent material,and the effect on the water absorption property of the water absorbent material was investigated.The results show that the water absorbent material has good water absorption,water retention,reexpansion and degradation.When the amount of modified microcrystalline cellulose is 1% wt and the amount of modified chitosan is 1% wt,the water absorption material has the best performance.Its water absorption rate is as high as 42g/g,the water absorption rate is 15g/g,and the degradation rate of 120 days is 70%.
Zhao Hongkai, Zhang Kehan, Rui Shoupeng
. Preparation and property of microcrystalline cellulose/chitosan water absorbent[J]. New Chemical Materials, 2021
, 49(7)
: 237
-240
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.07.053
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