Relative Viscosity Determination of High Viscosity Pigmented Systems
When measuring the relative viscosity of thick paint, putty, putty and other materials, the method of immersing the metal cone in the test solution and measuring its immersion depth per unit time can be used.
Determination of Relative Viscosity of Pigmented Paint Using HHHIK Immersion Cone
The main difference between the HIMJI11 viscometer (Figure 52) and other diffuse cone viscometers, which is usually called a diffuse cone, is that the HHHaK viscometer has a counterweight. This balance can eliminate the influence of the cone weight, This feature of the H]-IK viscometer makes it possible to measure the viscosity of the color and i111 with lower viscosity and obtain more accurate results. The whole instrument is fixed on the base 12, and the base 12 is borrowed The positioning screws 13 and 14 are adjusted to a horizontal position, and three different relays and a needle are attached to the instrument.
The pulley 3 of the sliding group cable 4 is fixed on the pillar 1 by means of the central part 2. A shaft rod 5 with a weight 6 at the end is hung on one of the main cables, and a heavy body is fixed on the upper end of the rod with degrees engraved on it. The flat plate 7 is hung on the other end of the cable with a small plate 8 loaded with a balance bell. The shaft rod can move up and down in the guide tube 9 and can be fixed at any height with a stop screw 10. The guide tube itself can also be connected with the bracket Ying moves up and down with screw 11 and can fix it on any height.
Install the instrument upright, and place the container containing the test color on its base 12. According to the difference in the viscosity of the test solution, fix a suitable dimension on the shaft, and then remove the debris, (load) ) into the small plate 8 to balance it with the male body. Afterwards, loosen the screw 10, adjust it so that its tip just touches the surface of the test solution, then tighten the brake screw, and place a fixed weight on the plate 7 , and then quickly loosen the brake screw 10, and start the stopwatch at the same time.
The loosened cone begins to dip into the color paint. After 5 seconds, use the brake line 10 to stop body, and measure the dipping stroke of the male body according to the scale on the shaft. This stroke can also be expressed very well The viscosity of the paint must be measured twice, and if the difference between the obtained results is greater than 1 mm, a third measurement must be carried out.
When indicating the viscosity of the paint, it is necessary not only to indicate the descending stroke of the body, but also to indicate the number of the pusher used to measure the viscosity and the weight added to the cone, such as Georgievsky HHHJIK, etc. It was pointed out that the HIMJIK Immersion Cone also gave reproducible results in thick paint studies and was also suitable for dry production purposes.
