NDJ-4型旋转粘度仪的改进及其应用

Improvement and application on NDJ-4 type rotary viscometer

在改进NDJ-4型旋转粘度仪的基础上,测量了端羟基聚丁二烯(HTPB)的表观粘度,依此估算出它的流变学参数(切应力τ、剪切速率γ及剪切速率指数n),对HTPB的流变学特性进行了表征,为含硼富燃固体推进剂药浆工艺的影响因素的流变特性研究奠定了基础。

Based on improvement of NDJ 4 type rotary viscometer, apparent viscosity of HTPB was measured.Rheological parameters,including shear stress τ ,shear rate and pseodoplasticity index n ,were estimated.And the rheological behavior of HTPB was characterized as well.All of these provide a basis for the study of rheological behavior of differential effect factors for boron based fuel rich solid propellant.