聚醚多元醇/液化MDI反应的化学流变性研究  

Study on Chemorheology of the Reaction Between Polyether and Liquefied MDI

作　　者：姜志国[1] 潘碧莲[1] 周亨近[1] 

机构地区：[1]北京化工大学材料科学与工程学院,100029

出　　处：《聚氨酯工业》1997年第1期23-26,共4页Polyurethane Industry

摘　　要：采用自制的恒扭矩粘度计，通过测量聚醚多元醇／液化MDI反应过程中绝热温升和恒扭矩电机转速，得到了反应注射成型中反应程度α和相对粘度ηr的关系。利用反应程度α与时间t的关系得到了反应动力学方程为。并提出了可以很好描述化学流变性的具有较简单形式的经验方程。The relationship between the reaction conversion a and relative viscosity Vr is mea-sured by a self-made constant-torque viscometer during the reaction between polyether and liquefied MDI in RIM- Based on the relationship between reaction conversion α and reaction time t, a kinetic equation da/dt = k (1 - α)3 is obtained. A simple experimental is equation about chemorheology is also proposed in this paper.

关 键 词：化学流变性 聚醚多元醇 液化 MDI 注塑成型 

分 类 号：TQ326.506[化学工程—合成树脂塑料工业]