硫化胶交联密度自动快速测定方法

CIESC Journal

硫化胶交联密度自动快速测定方法

刘亚东,张新惠

中国科学院长春应用化学研究所 ,中国科学院长春应用化学研究所

出版日期:1982-12-25 发布日期:1982-12-25

A Rapid Automatic Method for Determining the Crosslink Density of Vulcanizates

Liu Yadong and Zhang Xinhui Changchun Institute of Applied Chemistry, Academia, Sinica

Online:1982-12-25 Published:1982-12-25

摘要/Abstract

摘要： 本方法是测定将厚约0.2mm的试片在溶胀过程中的体积变化,通过光-电转换记录下来.除了可利用起始值_mv_a及终了值_mv_b直接计算出硫化胶的交联密度表征值V_r外,还可通过溶胀曲线进行溶胀动力学的研究.改变溶剂,便可进行试样的吸油、吸其他介质(酸、碱)等的动力学研究及求得其吸油或吸介质值.此外还可测定混炼胶挤出物的收缩率等.本仪器设计合理,结构简单,具有自动、快速、操作简便、温度可调等特点.实验结果比较准确,最大误差一般不超过3%.

Abstract: The apparatus designed can record the volume changes of a vulcanizate (0.2 mm in thickness) in the swelling process in the solvents with photoelectric transformation. It may be used to measure the value of Vr of vulcanizates, and investigate the swelling kinetics of vulcanizates on the basis of the swelling curves. By changing the solvent, the apparatus can be used to study kinetics of oil-or other medium (such as acids, bases)-absorption, and to determine the oil-absorption and medium-absorption number of the sample. The apparatus designed is characterized by its being automatic and rapid in operation, ease in handling and accuracy.

刘亚东,张新惠. 硫化胶交联密度自动快速测定方法 [J]. CIESC Journal.

Liu Yadong and Zhang Xinhui Changchun Institute of Applied Chemistry, Academia, Sinica. A Rapid Automatic Method for Determining the Crosslink Density of Vulcanizates[J]. .