双醛纤维素吸附明胶研究  

Study on Gelatin Adsorption by Dialdehyde Cellulose

作　　者：程飞[1] 潘鹏[1] 甄文娟[1] 单志华[1] 

机构地区：[1]四川大学制革清洁技术国家工程实验室,四川成都610065

出　　处：《林产化学与工业》2009年第4期6-10,共5页Chemistry and Industry of Forest Products

基　　金：高等学校博士学科专项科研基金资助项目(20050610046)

摘　　要：对双醛纤维素吸附明胶的各种条件、吸附产物的红外吸收和热重热解曲线图进行了研究。结果显示,双醛纤维素吸附的最佳pH值为8、最适温度为40℃,其吸附量随时间、氧化度增长,4 h即达平衡,氧化度高于100%时吸附量基本稳定;吸附产物具有Schiff碱的红外特征吸收峰,热分解起始温度随吸附量提高。The condition of adsorbing gelatine by dialdehyde cellulose was investigated, and the adsorption product was analyzed with FT-IR spectrometry and thermogravimetry. The result shows that the optimum absorption conditions are pH value 8 and 40 ℃. The adsorption capacity increases with raise of time and oxidation degree, and reaches balance in 4 h. The adsorption capacity is almost steady when oxidation degree is over 100 %. The adsorption peaks of adsorption product has characteristic of Schiff base in the FT-IR spectra. The initiative thermal degradation temperature rises with increase of adsorption capability.

关 键 词：双醛纤维素 明胶 吸附 热重法 

分 类 号：TQ352.9[化学工程]