摘要
由钠型蒙脱土悬浮体和水解聚丙烯酰胺组成的体系有负触变现象,对负触变性的形成条件和影响因素作了初步探讨。
In the course of a study on the change in the fiuidity and thixotropy of montmori-
llonite suspension by added hydrolyzed polyacryamide, it was noticed that some of them
displayed unusual thixotropic behaviour in that they showed in their natural state a
negative thixotropy; in other words,the fluidity of the suspension increased with time.
This negative thixotropic behaviour of this system was time-dependent, as can be seen
from Figure 1 (Chinese Text) and they show clockwise hysteresis loops. The consistency
of the suspension has a considerable influence on this unusual behaviour and additions
of salts destroy the ability of the materials to build up a structure possessing a'negative
thixotropic' behaviour.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1989年第2期152-157,共6页
Acta Chimica Sinica
基金
国家自然科学基金
