以改性微晶纤维素(MCC)和壳聚糖(CS)为原材料,采用真空冷冻干燥的方法,制备了一种无催化、生态友好型吸水材料。运用扫描电镜、热重、红外光谱和BET对吸水材料的结构进行表征,考察了对吸水材料吸水性能的影响。结果表明:所制备的吸水材料具有良好的吸水保水性、再膨胀性以及良好的降解性。在改性微晶纤维素质量用量为1%、改性壳聚糖质量用量为1%时,制得的吸水材料性能最佳,其吸水率高达42g/g,吸盐水率为15g/g,降解120d的降解率为70%。
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%.
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基金资助
“十三五”国家重点研发计划子课题(2016YFC0701002-02);吉林省教育厅“十三五”科学技术项目(JJKH20170239KJ);吉林省大学生创新创业训练计划项目(8570036505)
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