摘要
对泡沫的流变特性进行了实验研究.结果表明,泡沫为典型的拟塑性流体,其流变模式为μ_a=Kγ^(n-1).在(?)=40%～90%内,得到K=1866.84(?)^(3.094),n=0.3866exp(1.591(?)-1.108(?)~2)此外,泡沫的表观粘度还受起泡剂的种类、浓度、泡沫的大小、外界温度等因素的影响.
The foam rheological properties are studied experimentally in this paper. Foam behaves like a pseudoplastic fluid with a viscosity inversely proportional to shear rate. Its apparent viscosity is affected strongly by foam quality. From experimental results, the rheological parameters, K and n, are determined and two correlations are obtained:
Additionally, the rheological properties of foam are related with the type and concentration of foaming agents, diameter of foam, temperature, etc.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1993年第4期480-485,共6页
CIESC Journal
关键词
泡沫
流变性
流变模式
非牛顿流体
foam, rheological properties, rheological model, non-Newtonian fluid
