Introduction: The capillary rheometer is a computerized measurement and control intelligent detection instrument. Its main function is to extrude the molten sample from the capillary die according to the set extrusion rate, measure the melt fluidity under shear stress, and draw the height in real time. The shear stress, shear rate, and shear viscosity curves of molecular materials. The following test items can be realized: 1. Constant speed shear test: It can measure the curve of shear stress and shear rate, and the curve of shear viscosity and shear rate. 2. Constant pressure shear test: It can measure the shear viscosity and shear rate curve. 3. Step shear rate test: According to user requirements, different shear rates can be set, which can measure the shear stress and shear rate curve, and the shear viscosity and shear rate curve, and according to the curve during the experiment Change to judge the melt fracture and the minimum flow pressure and shear rate of the melt. 4. Flow/non-flow test: measure the relationship between viscosity and temperature, and can accurately determine the minimum flow temperature. 5. Melt fracture and flow instability, study the phenomenon of flow instability, including melt fracture and melt fracture. Technical Parameters: 1. Temperature range: room temperature~400℃ 2. Die material: tungsten carbide, size: Ø0.5*16, Ø1*16 3. Barrel material, carbide, diameter Ø15mm, 4. Plunger speed: 0.01-500mm/s 5. Diameter of the second material cavity: Ø10-Ø15mm 6. Range and accuracy of pressure sensor: 1MPa-250MPa±0.5% 7. The pressure test fluctuation range is <±0.5%, and the user can set it through the software 8. Heating rate: 1-10℃/min, continuously adjustable, and rapid heating 9. Displacement measurement range: <200mm
Introduction: The capillary rheometer is a computerized measurement and control intelligent detection instrument. Its main function is to extrude the molten sample from the capillary die according to the set extrusion rate, measure the melt fluidity under shear stress, and draw the height in real time. The shear stress, shear rate, and shear viscosity curves of molecular materials. The following test items can be realized: 1. Constant speed shear test: It can measure the curve of shear stress and shear rate, and the curve of shear viscosity and shear rate. 2. Constant pressure shear test: It can measure the shear viscosity and shear rate curve. 3. Step shear rate test: According to user requirements, different shear rates can be set, which can measure the shear stress and shear rate curve, and the shear viscosity and shear rate curve, and according to the curve during the experiment Change to judge the melt fracture and the minimum flow pressure and shear rate of the melt. 4. Flow/non-flow test: measure the relationship between viscosity and temperature, and can accurately determine the minimum flow temperature. 5. Melt fracture and flow instability, study the phenomenon of flow instability, including melt fracture and melt fracture.
