摘要
[目的]研究丝瓜络和微晶纤维素在离子液体中成膜性能。[方法]以离子液体[BMIM]Cl为溶剂溶解预处理过的丝瓜络,制得纤维素膜,用红外光谱和偏光显微镜对溶解前后的丝瓜络纤维进行表征,并对纤维素膜作了基本的性能评价。【结果]与微晶纤维素为原料的对比试验表明,[BMIM]Cl是丝瓜络纤维的直接溶剂,溶解过程中没有衍生物生成。原料聚合度的大小严重影响纤维素在离子液体中的溶解时间和溶解度。[结论]制备的纤维素平板膜具备一定的空隙率和孔径,可广泛应用于渗透、分离等领域。
[Objective] The aim was to study performance about film of mercerizing reguar and microcrystalline cellulose in the ionic liquids.[Method] Regenerated cellulose film was prepared from mercerizing reguar in 1-butyl,3-methylimidazolium chloride ionic liquid.Properties and structures of the mercerizing reguar and obtained regenerated cellulose films were investigated by FTIR and polarized light microscopy,then contrasted by microcrystalline cellulose.At last,the performance of film was evaluatied.[Result] The results showed that,1-butyl,3-methylimidazolium chloride ionic liquid was good non-derivatizing solvents for mercerizing reguar.Mercerizing reguar and microcrystalline cellulose were compared,it found that dissolve time and solubility in ionic liquids were serious influenced by the degree of polymerization.[Conclusion] Cellulose film had a certain hole rate and aperture,could be used in permeation and separation field.
出处
《安徽农业科学》
CAS
北大核心
2011年第16期9486-9487,9538,共3页
Journal of Anhui Agricultural Sciences
基金
辽宁省省教育厅重点实验室项目(LS2010014)
关键词
离子液体
丝瓜络
纤维素膜
Ionic liquids
Mercerizing reguar
Cellulose film
