摘要
采用应力控制流变仪,研究了非离子表面活性剂壬基酚聚氧乙烯醚(10)(NP-10)/水体系层状液晶在不同温度和表面活性剂质量分数的流变性。在线性黏弹区内,其储能模量和损耗模量与频率的关系不符合Maxwell模型,并用滑移模型、范德华力、水化作用解释了非离子表面活性剂层状液晶表现此类流变性的原因;用Burgers模型解释了蠕变-回复实验的结论,其结果与线性的振荡实验一致。
The rheological behavior of a lamellar lyotropic liquid crystal formed from nonyl phenol ethoxylate（10）（NP-10）/water was investigated using a rheometer.The influence of composition and temperature on the dynamic function was studied at varied surfactant concentration and temperature.The frequency-dependent storage and loss modulus were found not to be consistent with the Maxwell model in the linear viscoelastic region.The results were analyzed on the basis of slip-plane theory.The compliance was also measured,and the instantaneous elasticity measured in the creep tests was in according with the oscillatory tests.Burgers model was used to describe the time-dependent compliance.
出处
《应用化学》
CAS
CSCD
北大核心
2012年第5期565-570,共6页
Chinese Journal of Applied Chemistry
基金
山东省自然科学基金资助项目(ZR2009BQ013)
