以甘蔗渣为原料的聚氨酯合成反应动力学  

Kinetic Study of the Reaction Between Liquefied Product of Bagasse and Isocyanate

作　　者：许晶玮[1] 庞浩[1] 颜永斌[1] 廖兵[1] 赵树录[1] 胡美龙[1] 

机构地区：[1]中国科学院广州化学研究所

出　　处：《高分子材料科学与工程》2007年第6期50-52,56,共4页Polymer Materials Science & Engineering

基　　金：广东省科技计划项目(20063110030;06a1406285);广东省自然科学基金(E06200692;04101249)

摘　　要：利用二丁胺滴定法研究了甘蔗渣液化产物与多次甲基多苯基异氰酸酯(PAPI)在30℃、40℃、50℃和60℃于二氧六环溶液中的反应速率;计算了这四个温度的反应速率常数;按照阿仑尼乌斯公式计算了该反应的活化能为101.6 kJ/mol,指前因子为3.99×1015g/mol.s。The kinetics of the reaction between polymethane polyphenyl isocyanate （PAPI） and the liquefied product of bagasse in various temperatures （30℃, 40℃, 50℃） in dioxane solvent was studied by means of the di-n-butylamine method. The reaction presented an apparent second-order rate law. The reaction rate constants at the four temperatures have been calculated. The activation energy and frequency factor from the Arrhenius equation were also calculated. The activation energy is 101.6 kJ/mol and the frequency factor is 3.99×10^15g/mol·s.

关 键 词：甘蔗渣 液化 反应动力学 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]