氧化竹原纤维的胺化工艺优化及吸附甲醛性能研究  

Amination Process Optimization of Oxidized Natural Bamboo Fiber and Its Adsorbing Capacity of Formaldehyde

作　　者：颜甜甜 许伟[1,3] 云志[2] 邵荣[1,3] 

机构地区：[1]盐城工学院化学与生物工程学院,盐城224051 [2]南京工业大学化学化工学院,南京210009 [3]江苏省海洋滩涂生物化学与生物技术重点建设实验室,盐城224051

出　　处：《硅酸盐通报》2016年第12期3987-3992,共6页Bulletin of the Chinese Ceramic Society

基　　金：江苏省大学生创新项目(201510305031Y);盐城市农业指导性项目(YKN2014004)

摘　　要：以乙二胺为胺化剂制备了改性竹原纤维,并对工艺进行了优化。利用傅里叶红外吸收光谱、扫描电镜图进行表征,考察了胺化反应的反应时间、反应温度、乙二胺质量浓度及p H值对改性竹原纤维甲醛吸附量的影响。结果表明,最佳工艺条件为反应时间5 h,反应温度50℃,乙二胺25 g/L,p H=9。对改性竹原纤维吸附甲醛溶液的性能进行测定,发现对浓度为30 mg/L甲醛溶液的吸附量可达2.1 mg/g,是未改性前的4.7倍。实验表明,通过改性极大地提高了竹原纤维对甲醛的吸附性能,吸附主要为化学吸附,改性竹原纤维可作为极具潜力的天然环保型甲醛吸附材料。The modification of natural bamboo fiber was complicated oxidized with ethylenediamine based on oxidized natural bamboo fiber. The amination was proved successfully by fourier transform Infrared spectroscopy and scanning electron microscope. The effects of reaction time, reaction temperature, mass concentration of ethylenediamine and pH on adsorbing capacity of formaldehyde were stndiedhe optimum conditions obtained were as follows：reaction time 5 h, reaction temperature 50 ℃, mass concentration of ethylenediamine 25 g/L, pH= 9. The adsorbing capacity ofmodified natural bamboo fiberin formaldehyde solution of 30 g/L was measured and the adsorbing capacity was 2.1 mg/g, which was almost quintupling ofthat of natural bamboo fiber without modification. According to the experiment, the adsorbing capacity of natural bamboo fiber in formaldehyde solution was dramatically improved, making natural bamboo fiber a promoting, natural and environmentally friendly adsorbing material of formaldehyde.

关 键 词：氧化竹原纤维 乙二胺 改性 甲醛 吸附 

分 类 号：TQ352.6[化学工程]