The MBP 200 bubble pressure tensiometer from Data Physics Instruments is a powerful measuring device for determining the dynamic surface tension of liquid solutions. To do so, it uses the maximum bubble pressure method. The MBP 200 can direct a volume flow of gas through a capillary into a liquid, creating bubbles at the capillary opening. In order to track the pressure within the gas bubbles, the device contains a sensitive pressure sensor. Based on the detected pressure maxima, the surface age of the bubble and the dynamic surface tension is calculated. Additionally, the MBP 200 has a valve arrangement, which can generate volume flows of different strengths, in order to realize different surface ages for the measurement. The MBP 200 can be used to determine dynamic surface tensions in the range between 10 mN/m and 100 mN/m for surface ages between 5 milliseconds and 200 seconds. This makes the device ideal for analyzing liquids, such as surfactant solutions, in a wide dynamic range.
| DataPhysics Instruments USA Corp. | |
|---|---|
| Product Category | Property Testing Equipment |
| Product Number | MBP 200 |
| Product Name | Bubble Pressure Tensiometer |
| Properties Analyzed | Surface Energy / Tension |
