木质素磺酸钙热行为初步研究  

Study on the Thermal Behaviour of Calcium Lignosulfonate

作　　者：赵斌元[1] 胡克鳌[1] 范永忠[1] 竺品芳[2] 姚洪喜 

机构地区：[1]上海交通大学复合材料研究所,上海200030 [2]上海交通大学理化测试中心,上海200030

出　　处：《纤维素科学与技术》2000年第1期33-37,共5页Journal of Cellulose Science and Technology

摘　　要：采用差示扫描量热分析 (DSC)、热重分析 (TG)和升温红外光谱研究木质素磺酸钙的热行为 ,发现在室温到 40 0℃的范围内 ,木质素磺酸钙有三个主要的转变。第一个转变发生在较低温度范围内 ,可能与木质素磺酸钙的脱水和甲醛等小分子的反应相关 ;第二个转变的转变峰顶温度在 30 0℃附近 ,与木质素的高温缩合反应相关 ;第三个转变为热分解反应 ,与第二个转变紧密相接。文章认为 。Thermal behavior calcium lignosulfonate was studied by differential scanning calorimetry(DSC),thermogravimetry(TG) and heated infrared spectroscopy.Three main changes of the calcium lignosulfonate were observed during a change of temperature from room temperature to 400℃.The first change relating with removing of water and aldehyde took place at a lower temperature.The peak temperature of the second change is about 300℃,and is probably due to a condensation occurred at the high temperature.The third change closely following the second change was thermal decomposition of the calcium lignosulfonate.It was also suggested that the heat history of calcium lignosulfonate could be deduced from its heated DSC curves.

关 键 词：木质素磺酸钙 热分析 红外光谱 

分 类 号：TQ351.013[化学工程] O636.2[理学—高分子化学]