viscosity

The algorithmic method of precision enhancement of the paper pulp blade consistometers is considered. In the said method the current strength in winding of the moving coil of the magnetoelectric transducer in the steady regime of sensor`s blade motion condition is measured during its movement in downstream and upstream directions. By processing this data the errors, caused by the influence of the moving medium on the consistometer sensitive blade can be considered and excluded.

Measurement and regulation of paper stock concentration is of great importance in pulp and paper industry Deviations of concentration from the optimal value lead to deterioration of the product quality and can damage technological equipment of the factory. As a result a necessity of paper stock concentration measurement arises. In this article the improved rotational method of paper stock concentration measurement is examined, that is based on indirect measurement of concentration by viscosity. The influence of temperature on the measurement results was studied.

Developed of a method for producing structured waterproof films based on polyvinyl alcohol (PVA) and montmorillonite-polyvinylpyrrolidone mixture (MPM) to research the impact of borax, pH-environment and MPM content on the rheological properties PVA solutions and water absorption capacity of films based on them. The MPM mixture significantly affects on viscosity the characteristics of the solution polyvinyl alcohol provided their mixing in the ultrasonic field have been established.

The purpose of this work is to improve the rotational and blade type mechanical paper pulp consistometers for enhancement of their metering characteristics and reducing the influence of pulp flow velocity, friction torques in shaft sealing and bearings on the measured pulp consistency. These goals are achieved by algorithmic control of the sensor motion velocity and algorithmic processing of measured data. The designs of upgraded rotational and blade consistometers are presented.

Studied oxidative polycondensation of aniline peroksydysulfatom ammonia in solution of polyvinyl alcohol. It is shown that water-soluble polymer can interact with aniline. Kinetic curves are characterized by oxidative polycondensation of two plots that indicate the nature of the avtokatolitychnyy. During the process available polymer-polymer materials that have filmforming and conductive properties