Method of quantitative measurement of mechanical stability time (MST) of latex suspensions and the apparatus for use in the method

摘要

A method for the quantitative measurement of mechanical stability time (MST) of a latex suspension comprises the steps of providing a load force measuring apparatus for automatic quantitative measurement of MST of the suspension; agitating the suspension at sufficient speed so as to cause changes in the physical properties of the suspension; measuring and monitoring the changes in physical properties of the suspension by way of the load force values detected and transmitted to a control means; and automatically calculating the MST of the suspension by normal distribution analysis of the collected load force value data. An apparatus for use in the method comprises a vessel (20) for containing the suspension; an agitator (10), the agitator provided to be submerged in the suspension in use and capable of agitating the suspension at sufficient speed so as to cause changes in the physical properties of the suspension; a rotatable base (30) for holding the vessel, the vessel being removably coupled to said base; and a connector (50) operatively connecting the rotatable base to a sensor (60). The sensor is capable of detecting and transmitting the load force values resulting from agitation of the suspension to a control means. The control means automatically calculates the MST of the suspension by normal distribution analysis of the collected load force value data.