详细信息
壳聚糖基功能材料的制备及性能测定
Preparation and Characteristic Determination of Multi-functional Material with Chitoson
文献类型:期刊文献
中文题名:壳聚糖基功能材料的制备及性能测定
英文题名:Preparation and Characteristic Determination of Multi-functional Material with Chitoson
作者:张文清[1];沈方红[1];丁卯[1];蒋鑫[1];夏玮[1]
机构:[1]华东理工大学化学与分子工程学院,上海200237
年份:2010
卷号:36
期号:3
起止页码:401
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;Scopus;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
基金:国家十一五科技支撑项目(2006BAK20B01)
语种:中文
中文关键词:壳聚糖;羧甲基纤维素钠;无机盐;吸湿;甲醛
外文关键词:chitosan; sodium carboxymethyl cellulose; inorganic salt; water absorption; formaldehyde
摘要:壳聚糖(CTS)是一种碱性多糖,其氨基能结合溶液中的质子,形成的铵正离子与羰基发生希夫碱反应,羧甲基纤维素钠(CMC)是一种良好的吸湿材料,二氧化锰可以催化甲醛发生化学反应。以CTS和CMC为基质,同时复合一定量无机盐(K2CO3),在外层包裹二氧化锰得到功能材料。30 g的功能材料可以将0.08 m3密闭环境箱内初始质量浓度为1 000μg/m3的甲醛在24 h内降至216μg/m3,连续使用3次吸附效果明显。在70%湿度下吸湿量达45%,且吸湿后的功能材料吸附效果更好。
Chitosan(CTS) is an alkaline polysaccharide,whose amino-group combined with proton in solution can form ammonium cations,which can take Schiff base reaction with carbonyl.Sodium carboxymethyl cellulose(CMC) is a good matrix to absorb water.Selecting CTS and CMC as matrix,adding into some inorganic salt K2CO3 and coating MnO2 outside to get the functional material.30 g material can degrade the concentration of formaldehyde from 1 000 μg/m^3 to 216 μg/m^3 in a 0.08 m^3 box during 24 h,and the material can be used 3 times or more.The material exhibits very good moisture absorption under a high humidity(70%RH),can reach up to 45%.Its absorption of water can improve the effect of formaldehyde absorption.
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