Interface expansion rheometer

SI-IER2000 expansion interface type rheometer is the outcome of strong cooperation of our company engaged in years of professional precision measurement equipment research and development, production technology and the CAS Institute of Physics and Chemistry .The core technology has been applied for national patents. It is a new multi-functional precision measuring instruments, not only to retain the dynamic membrane pressure recorder (film balance langmuir film balance) of all the functions, but also provides a different compression rate, compression size, compression (sine, exponential, Chi Henan, etc.) to suit the specific needs in practical work for different purposes, which greatly expanded the application field is to study the surface properties of surfactants will not be a lot of testing methods. (For example, in the determination of Gibbs elasticity ε, we need to do slip fault sinusoidal motion)
SI-IER2000 expansion interface type rheometer is specialized equipment based on the measured langmuir CHANNEL interfacial viscoelastic properties of expansion ,it can be used for oil / water or air / water interface expansion viscoelastic properties measurements, in addition to retaining JM99 series of dynamic membrane pressure other than uniform motion recorder, it can also be used to work the following three ways: a small low frequency oscillation mode, macro mode steady-state deformation, the interface relaxation mode. New uses further comprising: an interfacial dilatational modulus (ε), interfacial tension phase (Φ), steady-state interface expansion viscosity (K), the interface expansion viscosity of the real part (ε ') and the imaginary part (ε ") of frequency spectrum and the basic interface Chi Yu measurement and research process. the instrument applied chemistry, biological membranes, liposomes, integrated optics, nonlinear physics, photonics, diluting the active source, LB membrane, the molecular structure and other areas there are wide range of uses.
Feature
1, The operation and data acquisition is controlled by a PC and pre-MCU ,automation and intelligent , minimize operator error;
2. The master program is Win98, Win2000 / XP interface, easy operation, the image as a standard BMP files, storing print data can be secondary treatment.
3. Big tank surface area, double sliding barrier.
4. High sensitivity, low noise, vibration small, smooth walking speed. small leak.

Technical Index
1. Surface tension measuring range: 0 mN / m to 150 mN / m (0mN / m ~ 150mN / m)
2. Resolution: 0.05 mN / m (0.05mN / m)
3. Detection method: hanging plate method (Wilhelmy Type)
4. tank type: langmuir groove
5. tank volume: Upper 70mm x150mm x8mm (W xL x H) lower 60mm x150mm x8mm (W x L xH)
6. Maximum measurement area: 96.6cm2
7. Minimum measuring area: 19.32cm2
8. Slider: (LEAKPROOF) or (BARRIER) or homemade hollow slip fault
9. Sampling period: 150 seconds to 300 seconds (two speed)
10. Power supply voltage: AC220 ± 10V
11. Power frequency: 50Hz
12. Maximum power consumption: 150W
13. Operating temperature: room temperature
14. Operating Humidity: 30% to 85% relative humidity
15. A sinusoidal motion: Frequency 0.001 ~ 1Hz, 1% to 6% of the amplitude (relative to the balance of the area)
16. The index movement: dlnA / dt is constant, the initial speed can be adjusted, the index movement time of 2000 seconds
17. The relaxation process measurements: instantaneous (1 to 2 seconds) to change the area of 5% to 30%