Pulp viscosity refers to the resistance of pulp to flow at a certain shear rate, and is usually used to measure the rheological properties of pulp. Measuring pulp viscosity is important for controlling pulp quality, determining processing parameters and ensuring production stability. By measuring pulp viscosity, high-quality paper can be produced, production efficiency can be optimized, costs can be reduced, and production efficiency can be improved.
Rotational viscometer is also one of the commonly used instruments in pulp viscosity detection. Its principle is to determine the viscosity of pulp by measuring the resistance of pulp to flow on the surface of a rotating cylinder.
The following are the steps for pulp viscosity testing using a Rotational Viscometer:
Prepare the sample: Stir the pulp sample to be tested evenly and pour it into the sample cell of the Rotational Viscometer.
Adjust the temperature: adjust the temperature of the Rotational Viscometer according to the specifications of the pulp.
Adjust the rotation speed: according to the viscosity range of the pulp, select the appropriate rotation speed.
Start the test: Start the Rotational Viscometer and wait a few minutes until a stable reading appears.
Document the results: Record the reading on the Rotational Viscometer and compare it to the pulp specification.
NBCHAO reminds you: Before performing the Rotational Viscometer test, the instrument needs to be calibrated to ensure the accuracy of the test results. In addition, when using a Rotational Viscometer for testing, it is necessary to strictly follow the instructions of the instrument to avoid damage to the instrument or inaccurate test results. In addition, for high-concentration pulp samples, it is recommended to dilute it to an appropriate concentration before testing, so that the test results will be more accurate.
